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Qatar Foundation Annual Research Forum Volume 2011 Issue 1
- Conference date: 20-22 Nov 2011
- Location: Qatar National Convention Center (QNCC), Doha, Qatar
- Volume number: 2011
- Published: 20 November 2011
1 - 100 of 281 results
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Civil Society and Democratization in the Arab Gulf: Findings from the First Qatar World Values Survey
Authors: Justin J Gengler and Darwish Al-EmadiAbstractFor decades, Western democracy promotion efforts have tended to focus on strengthening civil society and stimulating civic engagement as methods of encouraging the emergence of a democratic political culture. This is nowhere more true than in the Arab world. Between 1991 and 2001, some US$150 million dollars—more than half of all U.S. funding for democracy-promotion in the Middle East—went toward this goal. Yet new public opinion data from the first-ever Qatar World Values Survey (QWVS), administered in December 2010 by the Social and Economic Survey Research Institute (SESRI) of Qatar University, calls into question this presumed relationship between civic participation and democratic culture. This is because, in fact, civic participation in Qatar is actually associated not only with reduced support for democracy itself, but also with a disproportionate lack of those values and behaviors thought to be essential to it, including confidence in government institutions and social tolerance. In Qatar, the QWVS reveals, civic participation cannot lead individuals toward a greater appreciation for democracy, for it is precisely those who least value democracy that tend to be most actively engaged in civil society.
The QWVS asked respondents about various norms and behaviors said to be important in begetting or sustaining democratic political institutions, including about social tolerance, political interest, appreciation for democracy, confidence in government institutions, and participation in civil society organizations. Contrary to the assumptions of present Mideast democratization efforts, however, it found that civil society participation does not lead individuals toward a greater appreciation for democracy, nor toward a democratic political culture. Instead, male and female Qataris who channel their social, economic, and political ambitions through participation in civic associations are disproportionately likely to be less tolerant of others, less oriented toward democracy, and less confident in formal governmental institutions. These findings are the result of a careful multivariate statistical analysis, which offers a strong foundation for inferring, albeit not proving, causality. Thus, overall, it seems clear that associational life in Qatar does not seem to be an incubator of democracy.
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Taking into Account the Psychological Health of Children in the Religious Discourse
More LessAbstractRenouncing what some psychological studies call for regarding abandoning extending the memorization culture to children (memorization and indoctrination), and taking care of pursuing their talents and refining their creativity assuming it a basis for cognitive configuration in their future life – since the religious discourse is private in its own way of educating children. The way children are addressed requires a high degree of clarity and simplicity keeping in mind the level of their mental ability especially when dealing with religious aspects, in that it contains metaphysical matters and particular terminology. The proliferation of religious awareness as a result of the knowledge revolution through the internet and satellite TV convinced educational institutions, to a certain extent, with the importance of this dimension in modifying the behaviour and instilling values in children.
Here comes the role of preachers and religious leaders - and even those others who use the religious dimension in their discourse - in delivering religious messages to children through various means, including lectures, workshops, print, video or audio releases, and through both the traditional and new communications media.
Religious teachings have always had clear principles regarding the provision of care for children, whose right to education and access to basic needs are guaranteed. Such needs include all that fall under how they are treated and nature of messages targeting them.
This research was carried out to deal with the psychological aspects a religious spokesman needs to observe while directing a religious speech to children in the following areas:
* The carrot and stick
* Training and assignment ages
* Individual differences among children
* Comprehension & perception of speech by children
* Humanitarian needs as per Maslow's hierarchy of needs
* Communication methods and effects according to the theory of psychoanalysis
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The Renovation of Jurisprudence
More LessAbstractRenovation is considered a prominent feature in Islamic sciences & methodology in particular, as characterized by cumulativeness, flexibility and knowledge overlap. Some researchers were interested in the renewal of knowledge of Islamic sciences represented by the science of jurisprudence, whereby the focus was on the form without going into the innovative features of the fundamental approach.
Objectives:
- Formulating introductions to understand the innovative curriculum.
- Shaping the cognitive renewal curriculum for the science of jurisprudence.
- Knowledge of the mental process that gave rise to this science.
- Innovation commences by studying the old/previous, then overcoming it on all levels: research, understanding & content.
- The continuity of innovation & writing the last chapter.
The approach follows the epistemology of jurisprudence, its origin in every century, according to the geographical area of each, separately, using the triad of science:
- Terms
- Rules
- Approach
A synchronic approach will be utilized, which combines the historical and descriptive approaches, in addition to the analytical approach of the text to know its context, intellectual source and its three components: creed, doctrine and language; and the impact of the innovative approach on comprehending the fundamental thought in different dimensions and multiple contexts. We draw the conclusion, which signifies mapping the knowledge of regenerative Islamic and jurisprudence sciences, in particular, and the knowledge of the components of epistemology and apply them to the principles of jurisprudence.
In conclusion, it is clear that the fundamental renovation is derived from the core of minds where coupling of the mind and hearing is accompanied by opinion, doctrine and reality. Finally, it is manifested not to let the theories overshadow the methodology in the research process, since theories, concepts and research methods are merely scanning and analytical tools that we criticize based on scientific reality, rather than criticizing the scientific and cultural heritage enshrined in time afore.
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Audience Research for Qatar Museums
More LessAbstractQatar Museums Authority (QMA) is developing a variety of different museums. It is essential that QMA understands the needs and expectations of potential audiences. As part of this process, during 2011, a significant ongoing research project investigating potential family audiences for museums in Qatar was undertaken.
The objectives fall into two categories: understanding the demographics of potential family audiences and their perceptions of museums and secondly understanding current family usage of museums in Qatar and neighboring countries.
It focused upon developing an understanding of the needs of families during leisure time, and their motivations for family activities. Perceptions of museums as family destinations were sought and actual behavior in museums recorded.
The research was conducted over two phases from winter 2010 to summer 2011, and consisted of a mixture of quantitative and qualitative methodologies.
* Questionnaires were sent to all eligible schools in Qatar and forwarded to every pupil's family. Focus groups explored motivations for and expectations of, family engagement with museums.
* Motivations and expectations were further tested through observation of family visits to museums and comparable venues.
* In depth discussions with family groups.
Results have confirmed a significant interest in museum visitation. Families are motivated by a variety of factors, which can be divided into social, intellectual and emotional categories. The majority (72%) of families are motivated by social factors (e.g. the desire to spend enjoyable time with family). This percentage is significantly higher than is normally exhibited in Europe and America, suggesting a cultural difference.
Observations confirmed this social motivation, but highlighted a lack of familiarity with museums as venues for interaction. Challenges faced by family visitors were highlighted, including orientation, exhibit usage and how best to support children's learning.
The research indicated a potential family audience for museums in Qatar, and built an understanding of the motivating factors for visits, illustrating a marked difference from other countries. It has also shown several potential barriers to family engagement in museums which must be addressed for museums to successfully appeal to this key audience.
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Changing Patterns of Qatari Family Formation and Their Implications: New Evidence from Qatar's 2010 Census and Civil Registration Data
Authors: Badria Ali Al-Harami, Pinar Ucar and Richard LeeteAbstractQatar has experienced spectacular economic growth over the past decade. Between 2004 and 2010, real GDP grew by an annual average of around 16.2%, and over this period Qatar's economy grew faster than any other. Measured in purchasing power parity terms, its per capita GDP is now among the highest in the world. With huge and increased revenues from its exports of gas and oil, Qatar has invested heavily in economic and social infrastructure, as well as, in the well-being of its people. There have been remarkable increases in all socioeconomic indicators and resultant gains in human development. Accompanying the various modernization changes, family formation and childbearing behaviour are also in transition.
Against this background, this paper examines changes in period and cohort trends in nuptiality and fertility of Qataris. Utilizing time-trends in civil registration data and population census data, the paper will review the pattern of changes in Qatari marriage and fertility behaviour. It applies demographic techniques, including multivariate analysis of socio-economic and cultural variables, to explain the factors associated with the changes. The paper will conclude with an assessment of the implications of demographic changes for population and social policy, and the linkages to the programmes of Qatar's National Development Strategy, 2011–2016.
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Survey of the Problems of Social Reality of Qatari Population: An Applied Analytical Study on Needs Assessment and Situation Analysis
More LessAbstractThe ultimate objective of this study is to explore the strengths and weaknesses and the nature of the services available and required in Qatari communities, in order to assist the Council in promoting these communities developmentally in a balanced way, using a number of scientific and systematized methodological that enable us to develop a scientific database that can be relied upon in future planning, in order to realize the idea of sustainable development based on integrating various social groups and strata in a flexible, concrete, methodological and differentiated development process that is centered on the needs and efforts of the local community.
The study aimed to diagnose and analyze the situation in these communities in terms of: (Strengths; Weaknesses; Opportunities: available or that can be made available; Threats; Various obstacles facing developmental efforts in these communities) , to identify key players in these societies and classifying them as either: (Initiators, Influential or Decision-makers), to identify the main difficulties experienced by Qatari society regarding different services, as well as to identify the size and nature of the role played by the State through its various institutions in the following areas: Educational, Economic, Social, Entertainment, Health and Cultural services and to measure the nature and magnitude of the services provided in these communities and their ability to satisfy the needs of citizens and to assess extent of their satisfaction with these services. The study has employed a descriptive survey approach, through conducting a quantitative study on a stratified random sample of 1,100 subjects, distributed according to population distribution cited by the Census Bureau in 2006.
In addition, a qualitative study was conducted through three approaches: targeted discussion groups, through organizing 32 discussions focus groups. The qualitative study will allow us, to a great extent, to identify reasons, justifications and opinions that can only be elicited through this approach. Each session lasted for 1.5 - 2 hours and included 6-8 members of the target population. The study has also relied on in-depth interviews through the descriptive approach based on diagnosing and analyzing the reality lived by Qatari citizens through conducting in-depth interviews with a sample of natural and official opinion leaders in these communities.
Our sample consisted of 229 male and female subjects, selected from natural and official leaders. We have employed a desk research approach, through a survey questionnaire covering the most important services and resources available and required in these communities through the country's ten Municipalities. These services are economic, social, cultural, intellectual, educational, political and other services. We have also employed a comparative approach to make a comparison between the different groups of our target population, based on various demographic and psychological parameters.
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‘Qatari Students’ Interest in Attitudes toward Science: the Impact of the Educational Reform on Science Education in Qatar
By Ziad SaidAbstractThere has been a serious decline over the last 15 years in the number of students studying mathematics and science at both secondary and tertiary levels of education in Qatar.
This paper explores the major factors influencing student attitudes towards science, as well as the interest and enrollment in science subjects, by addressing the following question: What are Qatari precollege students’ interest in, and attitudes toward, science in grades 3 through 12?
Answers to this research question relied on data from a comprehensive pilot study involving a 60 question Likert scale survey (April / May 2011) to nearly 400 students, across grades 3-12, from 18 randomly selected independent schools education in Qatar.
The results of this survey indicated that nearly half of students surveyed have shown an interest in pursuing science- related university programs, or, work in science-related careers; about two thirds of the students enjoyed science classes at their schools; 60% considered science subjects as the most interesting subjects and 79% considered science as important for their future careers. The survey also revealed that two thirds of the students prefer to study science in English language despite the commonly held belief of most teachers that a language factor is one among the top barriers to students’ achievement in science.
The positive impact of new educational reforms beginning with the 2003 “Education for a New Era” is noticeable in the reasonably positive attitude of students toward, and high interest in, science as shown by the above study (Spring 2011), as well as in recently improved international tests scores (PISA 2009).
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Urban Qualities in an Emerging Regional Metropolis: The Case of Doha
Authors: Ashraf M. Salama, Florian Wiedmann, Alain Thierstein, Nina Alaily-Matar and Sven ConventzAbstractSince the late 1990s, Qatar and its capital city Doha have been undergoing a new period of urbanization. Doha is viewed as an important emerging city in the Gulf region with a growing potential to constitute knowledge economies as a foundation for its future prosperity. Driven by economic diversification strategies that aim to establish the city as a global service hub, sport and media events and cultural facilities are being developed in order to brand the city as an international service center. This contribution aims at introducing a responsive framework for analyzing the complex inter-dependencies between knowledge economies and physical urban developments in Doha. In this respect, this is an ongoing research process, as part of a QNRF-NPRP funded project, which seeks to deliver insights into the complexity of the various factors that produce urban space and their individual effects on urban qualities. Based on Henri Lefebvre's triad of space production (conceived-perceived-lived), a framework has been developed and particularly devised to explore the inter-dependencies of Doha's recent economic transformation and the changing structure of its urban environment. The framework involves comprehensive analysis of urban planning decision making processes as well as in-depth investigation that applies interlocking network models to examine how urban space is currently used by companies of new economic sectors. Taking into account the importance of the role played by the employees working in these companies and their perception of contemporary urban space in the city, the framework utilizes empirical research techniques that involve survey studies, focused interviews, and behavioral mapping. In addition to investigating the various factors driving spatial transformation, the evolutionary aspects of the city's urban structure are traced and analyzed using GIS data and space syntax studies. The results of implementing this framework are amenable to establish a comprehensive understanding of the potential and deficits of Doha's urban environment, which in turn, foster the city's aspirations in establishing a thriving knowledge economy.
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Media Branding and Viewer's Perception in Qatar
More LessAbstractWe study how background characteristics and media branding affect viewers’ perception in Qatar. We conduct an experiment by asking individuals to provide background information and then comment on a 2-minute Al Jazeera clip from 2006 on the Danish Cartoons controversy. However, an element of deception is added when for half the participants we remove the Al Jazeera logo from the clip, add the CNN logo in the beginning and refer to the survey as the CNN Survey.
Out of 600 survey participants we find that religion drives differences in perception for the debate on the Danish Cartoons, but most other background characteristics do not matter. Surprisingly, when we turn to the branding effect we find that faculty's perception changes when the group thinks that the information comes from CNN instead of Al Jazeera. Branding also seems to affect Qataris and individuals who attended a segregated university. It does not affect the students. Finally, we build the profile of Al Jazeera and CNN viewers, and find that more than 60% of the survey participants do not consider Al Jazeera or CNN as their main source of information. This result points to the importance of social media as an alternative source of information in the Qatar, and more general in the Middle East.
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Stigmatization of HIV-Positive Women among Qatari Students
Authors: Abdallah Mohammed Badahdah and Fatima Al-KubaisiAbstractBackground: Although researchers have studied AIDS-related stigma for three decades, there is a serious shortage of this type of work in the Arab world including the Gulf Cooperation Council (GCC) countries. Our review revealed only 24 published studies on the social aspects of AIDS from all the GCC countries since the beginning of the epidemic. Unfortunately nothing was published from Qatar. A closer inspection of these studies shows that people living with HIV/ AIDS (PLWHA) were treated as one homogenous group and the importance of layered stigma (e.g., being HIV-positive and female) was not considered. Although Arab HIV-positive women represent nearly 30.4% of all PLWHA in the Arab world, the majority of them contracted the virus while married. For example, a study from Saudi Arabia found that 62 out of 65 of the HIV-positive women were infected by their husbands, whereas, 111 out of the 124 men acquired it from sex workers. This is a new trend in the Arab world. In the past HIV was seen as a male disease.
Objectives: To correct these limitations this paper focuses on stigmatization of HIV-positive women in Qatar among college students.
Methods: The present study collected data from 520 college students at Qatar University using self-administered questionnaire to gauge their attitudes toward HIV-positive women compared to HIV-positive men.
Results: Findings illustrated the extreme negative view of HIV-positive women. For example, 63% of the students agreed that HIV-positive men should be allowed to get married while, 45% approved the same action for HIV-positive women. Further, we found that 78% of the students believed that HIV-positive women should not have children and 56% suggested that they should be sterilized to prevent them from having children. Other negative views and their relations to students’ knowledge of HIV, AIDS-related shame, degree of religiosity and gender will be discussed.
Conclusions: Reactions to HIV-positive people differ according to the gender of the infected individuals. Extreme measures were endorsed toward HIV-positive women compared to HIV-positive men. Further, limits were imposed on HIV-positive women's sexual and reproductive rights. Future studies need to replicate this study among other segments of Qatar society
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Qatari Women and Physical Activity: Highlighting Positive Examples of Regular Participation
Authors: Kelly Knez and Lisa HunterAbstractBackground: Research reports a dramatic increase in the rate of overweight and/ or obese Qatari nationals. Limited research has been completed on the female subset population; however, it appears that the majority of Qatari women are insufficiently physically active for health benefits. Reasons for high inactivity levels among Qatari women are typically attributed to conservative social norms that are prevalent within the GCC region. To date no research has considered ways in which Qatari women are able to negotiate these social norms in ways that enable them to participate in physical activity on a regular basis.
Objective: This research sought to determine positive examples of Qatari women participating in regular physical activity and to identify facilitators for their participation.
Methods: Using a qualitative framework, 10 young Qatari women, aged 18–25, were interviewed over a 2-hour period. Questions asked, related to the women's participation in physical activity from childhood through to adult hood, and took into consideration the ways in which the family, schools and social networks acted as a barrier or an enabler. Interviews were transcribed verbatim and analysed using an interpretive framework and thematic analysis.
Results: Results indicate that opportunities for these Qatari women to participate in regular physical activity are enabled through family support, developing or established health literacy's and access to culturally appropriate facilities.
Conclusion: This research shifts the focus of Qatari women's participation in physical activity from a deficit framework to one that highlights possibilities towards establishing and maintaining a healthy lifestyle. Future research should extend upon these findings to understand ways in which the Qatari population can advocate for culturally appropriate and meaningful physical activity promotion within Qatari society.
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Islamic Medical and Scientific Ethics Research Project
Authors: Ayman Shabana and Frieda WiebeAbstractBackground: In 2009 the proposal to establish an international information resource on Islamic bioethics submitted to Qatar National Research Fund was accepted and awarded a three-year grant. The project was conceived and proposed by two of Georgetown University's research libraries: the Bioethics Research Library (BRL) at the Kennedy Institute of Ethics in Washington D.C. and the Georgetown University School of Foreign Service in Qatar Library (SFSQL) with the vision to become the world's most comprehensive resource on Islamic bioethics. Building on the valuable experience of these two institutions, the project promises to serve the needs of the local and international community of researchers in the area of bioethics. The project utilizes the best practices gained from work on similar projects on bioethics scholarship in collaboration with renowned institutions in the field such as the National Library of Medicine of the National Institute of Health in the US. Currently the project is in the third year of the grant and the research team believes that the project is on schedule to achieve its vision.
Objectives: This presentation aims to demonstrate the efforts to achieve the targeted goals of the project. It also seeks to share the lessons gained from work on the different components of this project. In addition to highlighting the challenges encountered, the presentation will also illustrate the innovative solutions that were undertaken to fulfill the objectives of each of the project's components.
Methods: The presentation will address each of these components:
- The collection development: the proactive acquisition plan
- Database Development: innovative solutions
- Local Impact: partnerships and networking
- Global Impact: the world's premiere resource on Islamic bioethics
- Future Plans: further expansion and growth
Results and Conclusions: The presentation will share the policies and strategies that were implemented in order to fulfill the targeted goals of each of the components listed above. It will also demonstrate and showcase the results of the project.
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Villaggio and Culture Change: An Ethnographic Analysis
AbstractWhile the traditional urban spatial geography of khaleeji residential patterns has been in flux for much of the past century, the vast infrastructural modernization plans and urban development schemes characteristic of the last decade in Doha have significantly reconfigured the social geography of urban life in the city. Overall, this research made use of a diverse set of qualitative, ethnographic methods as a pathway to exploring the impact of Villaggio Mall upon Qatar and its diverse peoples. The project connects with ongoing research, set in a variety of other non-western societies that continue to evaluate the impact of consumer culture in new settings. This project represents the first attempt to ethnographically gauge these impacts in the context of the contemporary khaleej societies.
This research used qualitative research methods including numerous interviews with families residing in the neighborhoods proximate to Villaggio Mall. The researcher also conducted a survey to explore the population's attitudes towards the phenomenon of malls, 100 people responded to the survey questions.
The research team frequently visited the Villaggio Mall to take photographs of the layout and stores of the shopping mall, and of people in the mall. For the latter photographs, permission was taken from all subjects clearly identifiable in the photographs. The research team used this collection of photographs to discern a set of key themes that resonate with existing social and cultural research concerning shopping malls in other parts of the world.
This study showed changes in the patterns of behavior and the daily activities of the population, especially those who live near these malls (eating habits, times of sleep, and relationships both within the household and within the neighborhood). With the presence of this supermall, home visits between families become less frequent. The findings of this study reveal the depth of the social and cultural changes experienced by traditional society of the city of Doha as a result of globalization. This study seeks to take a first step toward enhancing our scientific knowledge in the fields of globalization and consumer culture.
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Sub-Saharan Africans in the Gulf Countries: An Exploratory Survey of Kenyan Migrants in Qatar
More LessAbstractBackground: A recent survey by the World Bank puts Kenya as the second-highest recipient of inward remittance in Sub-Saharan Africa (SSA), contributing 5.7 percent to the country's GDP. The Gulf Cooperation Countries are becoming a favored destination for migrants, including those from SSA. The existing literature does not adequately examine the impact of remittance, and of migration, on migrants and their families. To our knowledge, this is the first exploratory survey of migrants from Kenya in the Gulf region.
Objectives: This research attempts to track migration and remittance trends between Qatar and Kenya that would enable policy-makers and researchers to monitor the impact of remittance on the local economy. It also serves as a valuable introduction that enhances our understanding of the challenges faced by migrants from Sub-Saharan Africa.
Methods : Original data from 52 male migrants were collected between June and December 2010. The survey covered the following issues: health, demographics, education, income, expenditure and remittance.
Results: The median Kenyan migrant has the following profile: male, 29 years of age, single, possesses some degree of college education, has been in Qatar for 1.4 years, works 9 hours a day, 6 days a week, earning US$ 3945 per year of which over half is remitted back home to his parents. The migrant has limited savings, rendering him unsatisfied. Most of the migrants surveyed intended to use their saving for further education or start a business enterprise. They also expressed concerns about a mismatch between the skill sets they had and the jobs obtained in Qatar.
Conclusions: This study raises pertinent questions that require a deeper analysis: Is it possible to match the migrants with jobs that they have trained for to reduce underemployment? How can migrants improve their savings? Our findings suggest that remittance and savings amongst Kenyan migrants help in capital accumulation and could contribute to the economic development in Kenya. Hence, there is a need for policy makers to work with Kenyan migrants, to enable them to achieve their financial goals.
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SERVQUAL Scale Adaptation to the Admission and Registration Services in Qatar University
Authors: Aljazzi Hamad Fetais and Mohammed Nishat FaisalAbstractHigher education sector is one of the fundamental and energetic fields in any developing country. It had become a very competitive one as a result of globalization and increase in the demand for education. Thus, most, if not all universities are competing to level up among others and provide high quality services. The objective of this study is to propose an adaptation of the SERVQUAL scale's generic questionnaire for the Admission and Registration services at Qatar University. This paper is aimed to assess the quality of the services provided through SERVQUAL. SERVQUAL is a method that assesses client satisfaction as a result of the difference between expectation and the performance obtained. The main aim is to adopt the SERVQUAL scale to Admission and Registration service activity and to present the results of its application.
The SERVQUAL generic questionnaire was adapted to the characteristics of admission and registration services at Qatar University. It was then applied to students at Qatar University. After applying the questionnaire, data were tabulated and interpreted. The adapted SERVQUAL questionnaire was used in the study to measure the five gaps in the service quality model, and the main results were presented through analysis of data in each dimension.
This study resulted in identifying the most serious dimension that needs attention and work, in order to reach customers’ satisfaction.
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Insurance Policy Based on Islamic Waqf and Small Enterprise Development
More LessAbstractThis research aims to develop a new economic policy of insurance with a new Islamic template that relies on waqf in order to revive Islamic concepts, and activate their role in global economic policies, showing Islamic economic system's ability to interact with both the economic and social developments, and its ability to achieve high competitiveness with global institutions, by having additional positive features on the humanitarian side, social side and others. In greater detail, this research seeks to achieve several goals, namely:
First: avoiding of the prohibition inflicted on commercial insurance in Islamic jurisprudence and law, and obtaining services that are compatible with Islamic law, with what that entails of effects on the Muslim's life.
Second: avoiding the suspicions brought about by the Islamic mutual (takaful) insurance as it stands now.
Third: surpassing both insurances (commercial & mutual) in the role this insurance is developing small project economics, by providing free-of-charge services or for nominal fees to the owners of small enterprises thus gravely affecting the economy and the income level.
Fourth: exploring the possibility of applying this type of insurance in the State of Qatar (a study on Qatari laws), giving a preliminary design for the proposed endowment insurance company in terms of laws, activities and the distribution of money.
Through this research we will look into:
First: the need for insurance in countries in general, and in Muslim countries in particular.
Second: reasons for the inviolability of the commercial insurance.
Third: doubts and objections from scholars on Islamic mutual (takaful) insurance.
Fourth: the core of the endowment insurance and how it overcomes the problems of the two latter insurances.
Fifth: How to guide insurance surplus in endowment insurance proposal towards small business owners, and the impact of that on the achievement of social justice and economic and social development.
Sixth: how can the endowment insurance institution be created within the laws and regulations in the State of Qatar (an example).
Seventh: a projection for the endowment insurance in terms of labor regulations and the laws, in comparison to an insurance institution to a similar endowment institute that was established in South Africa, giving scholarly solutions to objections that we faced, and how can they be developed to serve the social/economic issues.
And finally: despite the novelty of this proposal, it directs scientists’ and researchers’ energy towards working on the development of economic, social & other policies, where various Islamic concepts (such as endowment, recompense, zakat, and kharaj etc…) play a role in human development on all levels, thus showing the greatness of Islamic regime which has been created to suit every time and place.
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“Lessons from the Alaska Model: How the Permanent Fund Dividend provides a Model for Reform Worldwide”
More LessAbstractMany resource-exporting nations have sovereign wealth funds (SWFs), but only the Alaska Permanent Fund (APF) pays a regular dividend to citizens. They call it the Permanent Fund Dividend (PFD). Every Alaskan citizen-resident has received a small share of the returns to the state's SWF since 1982. This article argues, using rigorous qualitative analysis of Alaska politics and of the social science literature on the effects of the APF and PFD that there are important lessons that all nations can learn from Alaska's unique experience.
First, Resource dividends work and they're popular. Second, a state does not have to be resource rich to have a resource dividend. Third, states have resource dividends because the people took advantage of the opportunity. Therefore, the people must look for opportunities. Fourth, members of the political community must think not only like joint owners of their resources, not only like monopolistic owners of their resources, but also like custodians of their resources for their descendants. Fifth, build a constituency. Sixth, avoid creating enemies. Seventh, a dividend amplifies transparency by using the greed of the many to counter the greed of the few. Eighth, we cannot know that a nation has avoided the resource curse until their resource exports have run out.
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Baseline Data for Arabic Acquisition with Clinical Applications: Collecting Qatari Data
Authors: Haifa Al-Buainain, Kimary Shahin, Ranya Morsi, Ghada Khattab and Feda Al-TamimiAbstractThis presentation discusses the collection of Qatari child speech data. For a large project, we are obtaining audio recordings of 1/2-hour spontaneous Arabic speech produced by 140 Qatari monolingual children in natural settings (e.g. home and preschools). Fieldworkers produce digital files of the child speech recordings, and text file transcripts of the recordings. Our data are being analysed and coded in the CHILDES format.
Baseline Data for Arabic Acquisition with Clinical applications is a three-year interdisciplinary project in Linguistics and Children's Health. It is multiinstitutional and international. It is a cross-sectional study of child speech which involves research on normal conversational interaction produced by native Arabic-speaking children between the ages of 1 year and 4 months to 3 years and 7 months. The overall goal is to collect extensive new material on five colloquial Arabic dialects: Qatari, Saudi, Jordanian, Palestinian, and Lebanese.
Specifically, the project aims to achieve four online bilingual Arabic-English resources: Arabic Child Language Database, Analysis of the Arabic Child Language Database, Arabic Child Language Norms and Clinical Reference Materials for Arabic Speech-Language Pathology. The project will fill these resources with extensive material on five Arabic dialects. It will provide heretofore nonexistent baseline data on first language acquisition of Arabic, critically essential for Speech-Language pathologists working with Arabic children, and for linguists conducting research into the nature of language and first language acquisition. This is the second year of the project and we are still in the data collection stage.
The aim is to inform our language acquisition colleagues about the project, to facilitate cross-germination of ideas at this relatively early stage of our research. The presentation gives a small taste of the kind of data the Qatar team is encountering. We first summarize the progress made toward accomplishment of the aims of the project in Qatar, and problems and difficulties encountered and how they are being solved. We hope this will be helpful for fellow researchers who do child language research in the Arab Gulf region.
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Family Businesses in Qatar: A Study of Select Issues
More LessAbstractFamily businesses are considered important drivers of economic growth process since they are credited for nurturing across generations entrepreneurial talent, a sense of loyalty to business success, long-term strategic commitment, and corporate independence. Family firms are often praised for their ability to nurture a sense of loyalty, long-term strategic vision and commitment, and pride in family tradition. Family can foster high ethical standards, positive commercial values, and a sense of responsibility, which can contribute to the transfer of entrepreneurial skills from one generation to the next. Other advantages include concern and respect for individuals, and operational flexibility, particularly in terms of ad hoc business solutions, human resource management, and reward systems. Although in literature many studies can be found that focuses on family businesses, none of the study was conducted in Qatar. Using questionnaire based methodology, this study explored the issues like next generation development activities and processes to produce successful leaders, hiring and retaining professional non-family executives, and community, philanthropic and charitable activities; building social goodwill. Some of the results of this study are very different from other such studies conducted in western countries. One such difference is that in western countries after second generation most of these businesses are either sold or only few of the family members run the business, while in Qatar family businesses are continuing well into third or even four generations with most of the family members remaining active in day to day operations of the business. As there is quite a number of family businesses operating in Qatar the study brought forth some of the issues that are important from the point of view of managing family businesses.
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Emerging Mosquephobia: The Predicament of Architecture, Multiculturalism and Islam
More LessAbstractContemporary Muslim communities, regionally and around the globe, are facing a defining moment. The post 9/11 incident—as agreed upon by different researchers—established a new milestone in the contemporary history of Muslim communities. Crucial questions related to identity, image, misconception and misjudgment of Islam as a religion and Muslims as part of the human community flourished in political, religious, economical and cultural literature. The declared ‘war on terror’ shouldn't be transformed into a war on Islam. As a result of massive fabrication of Islam as an enemy of civilized society as intensified in western media. Islam has become an issue in America. Islamophobia has emerged as an ideology that threatens the tradition of tolerance.
Mosques are undoubtedly the most clear physical representation of Islam as a religion, principles and values. Basically, the mosque is an ideological manifestation in space, time and matter. This paper will examine the architecture and urban status of contemporary mosques in selected contexts with the Arab and Western communities. The paper claims that formerly powerful and dominating image of the mosque is currently subjected to accelerating resistance and rejection. Numerous incidents around the world have shown clearly the volume of such new phenomenon. Ideological conflicts which have emerged after 9/11 and the declared war against terrorism, paved the way for a new perception of Islam and many of its related symbols and icons. The mosque is no exception in this newly constructed western perception which, as many researchers argue, is based on fear.
The paper invites Muslim and non-Muslim architects and planners to transcend the typical mosque prototype extensively scattered around the globe. A move from exclusive to inclusive spatial composition of the mosque is urgently needed. Mosques can be designed as part of a global network of social, cultural and spiritual activities inserted within and blended with global cities and towns. Hence, mosque design could seek creative and innovative solutions by which its form, spatial order, functional components, transparency, and communicated meaning can holistically contribute to diminish the swiftly accelerating Mosquephobia.
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Doha, Qatar As a Model for Creative City: A Tale of Two Museums.
More LessAbstractThe pressing challenge of being in a creativity economy paradigm means that many cities are now looking for ways to be creative not only through their components, but also with their management and development procedures. Creativity and innovation are currently seen as the most important aspects of development. The paper will analyze the shift over the past decade which reveals how numerous cities view creativity as an essential vehicle to survive in the globalized world today. It will use Doha as a case study with a specific interest in its emerging cultural facilities and museums. The necessity of creative cities in the Middle East was not scientifically or intellectually explored. This paper is an attempt to fill the academic and research gap in implementing the creative city principles within a Middle Eastern context and particularly in Doha. The process of constructing Middle Eastern creative cities should be shifted from focusing on creating isolated and separate creativity centers to a process by which creative networks are established and shared by different sectors of the community. The paper will also argue that creative cities should be perceived as the opportunity for new sustainable growth and prosperity in the global knowledge-based economy. Two museums in Doha will be analyzed as case studies for establishing the concept of creative city. The role of cultural facilities and museums in Qatar's plan for development will be explored. The two museums are the Museum of Islamic art and Qatar National Museum. Both are carefully integrated in the Doha city, rather than set apart in an isolated location. The paper will argue that Doha's new identity as a creative city is fundamentally substantiated by the creation and building of such museums. It will illustrate the role of the two museums in the coming development and social paradigms which Qatar will experience in the coming decades. The paper will conclude with a comprehensive model illustrating how museums can be a catalyst for development in contemporary creative city like Doha.
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Awareness and Understanding of Human Trafficking among Qatar Residents
Authors: Heidi Jane Winder, Abdulwahed Karimi and Tracey KohingaAbstractHuman trafficking is arguably the fastest growing criminal industry in the world. An estimated 2.5 million people are victims of human trafficking each year. Despite this prevalence, evidence suggested low awareness and understanding in Qatar of what constitutes human trafficking and its occurrence at a local level. Prior to launching an awareness campaign and capacity building programs, QFCHT deemed it important to identify local attitudes and perceptions about human trafficking.
This paper aims to gauge current awareness and understanding of human trafficking among Qatar residents and to identify community misunderstandings and knowledge gaps.
This quantitative research consisted of a total of 426 face-to-face intercept interviews (in Arabic and English) with a stratified random sample of Qatar residents. Quotas were set according to four nationality groups so that demographic comparisons could be made. Interviews were conducted by 20 volunteers and QFCHT staff throughout July and August 2011. All interviewers underwent an extensive briefing by a qualified market research consultant and a quality audit was conducted on 10% of completed surveys.
The results of this research confirm there is limited awareness and recognition in Qatar of the overall concept of human trafficking. However, in general after being provided with a definition, respondents accurately reflected that the categories of people most affected by human trafficking in Qatar are domestic workers and labourers. Almost half (48%) of respondents did not know which organisations in Qatar provided services to victims.
A significant proportion of Qatar residents interviewed had a limited understanding of the meaning behind the term human trafficking. The findings indicate a further need to build the awareness among residents of Qatar of the types of human trafficking occurrences and ways to combat them. Human trafficking promotional campaigns need to focus on targeting nationalities where understanding is at its lowest and on issues specific to the categories of people most affected in Qatar. Campaigns should also focus on increasing awareness of support services available to victims such as the services offered by the QFCHT. Recommendations are included in the research report.
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The Surveillance of the Microbial Quality of Selected Ready to Eat Foods in the State of Qatar
More LessAbstractFoodborne illness continues to cause significant morbidity and mortality both nationally and internationally. Protecting the human host from exposure to foodborne pathogens and reducing the incidence of foodborne illness are the central goals of established national food safety intervention program. Foodborne illness is a reportable disease in the State of Qatar. Protecting the food supply from the microbial risk of known foodborne pathogens is critical to national food security; particularly in the State of Qatar where the population has a high level of dependence on imported food.
There are many surveillance activities utilized by local public health officials targeted at mitigating the risk associated with foodborne illness and improving food security. A risk based method of sampling high risk ready to eat foods in the State of Qatar is one such activity to monitor the distribution and incidence of hygiene indicators and pathogens in our food supply. Three common retail hypermarkets were chosen with high risk ready to eat foods items identified for inclusion in the study
The aims of this paper are ;-To perform baseline surveillance of Ready to Eat Foods at the retail level in the State of Qatar. To identify ready to eat foods (RTE) which may pose a greater risk to the population in acquiring foodborne illness. To determine if gaps exist in the food safety surveillance system related to public health and hygiene.
Sample collection was conducted at three retail hypermarkets in the State of Qatar over a one year period. The laboratory will utilize a variety of wet laboratory procedures - pre-enrichment, enrichment, selective isolation and confirmatory microbiological procedures according to the National Health Authority Central Laboratories-Microbiological Analytical Manual-1st Ed., 2008 on all food samples analyzed. All samples analyzed by the Central Food Laboratory were done in duplicate.
There are no significant common foodborne pathogens infecting High Risk Ready to Eat foods from identified retail hypermarkets in the State of Qatar(E. coli 0157:H7, B. cereus, Staphylococcus aureus, Clostridium perfringens, Salmonella spp., Listeria monocytogenes, Vibrio parahaemolyticus).
There is a statistical difference in levels of hygiene indicators (Enterobacteriaceae, SPC) by retail store location.
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Measuring Entrepreneurial Potential in Students at The College of the North Atlantic-Qatar
More LessAbstractThe state of Qatar has embarked upon an unprecedented period of investment in human, social, economic and environmental development in line with its Qatar Vision 2030 plan. With significant investments in support of the Small and Medium Enterprise Sector, Qatar is making impressive gains towards building a knowledge economy. The College of the North Atlantic-Qatar (CNA-Q) has developed its own Strategic Plan in line with the State's to ensure that the college is providing the best service to Qatar and its people. Within CNA-Q's School of Business Studies, the Entrepreneurial Center (EC) was created to assist with the planning and development of small businesses.
In order to better understand the requirements of budding entrepreneurs at CNA-Q, a research project was initiated to measure the Entrepreneurial Potential (EP) of students based on their attitudes towards entrepreneurship and the constituent elements of achievement, personal control, creativity, leadership, intuition and risk taking. The project also gathered data about gender, sponsorship, age, program-of-study, country of citizenship, postgraduate intentions and extra-curricular activities in order to understand any demographic or behavioral characteristics that may be important.
In this cross-sectional, quantitative study, a sample of over 400 diverse students from various faculties at CNA-Q was surveyed. Results showed that students at CNA-Q register relatively high EP in general but lower in the areas of intuition and personal control. There were differences observed in various groups as well. Non-sponsored students scored higher in EP than sponsored students, male students scored higher than female students and business & information technology students scored higher than average. Students who participate in extra-curricular activities scored higher than those who do not and a large percentage of students intend to continue their education while very few intend to start their own businesses after graduation.
The results indicate that if CNA-Q wants to increase EP in students, among other things, the school needs to adapt curriculum to improve students’ intuition and personal control as well as encourage students to take part in more extracurricular activities. CNA-Q should also pursue further research to better understand why so few students have entrepreneurial intentions.
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Moving from Deficits to Strengths: Using an Appreciative Inquiry Approach to Enhance Student Engagement and Learning
By Paul MacLeodAbstractBackground: Appreciative Inquiry (AI) is a strengths-based approach that focuses on exploring participants’ core values and peak experiences. In AI, interviews are used to extract positive elements that can be applied to the current situation. The literature indicates that using AI approaches in the classroom leads to enhanced student engagement, participation and achievement. This study is an ongoing exploration of the efficacy of the AI approach in enhancing student learning with high intermediate language learners at the College of the North Atlantic-Qatar
Objectives:
1. Move students from the common deficit-based, teacher-dependent, mind-set to a more self-reliant approach focused on using their strengths to learn more effectively.
2. Use a positive discourse to foster improved student attitudes, increased interaction between students and increased student engagement with their learning.
Methods:
A case study where participants use the following AI process:
1. Discovery- a structured interview with a partner to explore their best learning experiences.
2. Dream- share their partner's stories (and their own vision of an ideal class or college) with the group and extracted meaningful patterns or themes.
3.Design— Use the data from part 2, to develop an individual plan to maximize their learning and promulgate a series of agreements governing group behavior.
4. Destiny- Changes from step 3 are implemented.
II. Participants give feedback on the AI approach.
Results: All students showed renewed commitment and enthusiasm for the class. In general, the AI approach resulted in increased quality and quantity of participation, increased attendance and overall a more positive attitude from students. Participants reported that the process made them feel more positive, confident and interested in learning. These results are consistent with the facilitator's observations and the results reported in the literature.
Conclusions: Given the small, non-random sample of participants this study cannot be said to be generalizable to EFL students in Qatar. However, given the positive results experienced by the investigator and the students involved. It would be useful to do a large-scale study comparing the attitudes and results of students taught using a traditional approach with those of a group taught using an AI approach.
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Changing Patterns of Fertility and Family Formation in the Islamic World: Dimensions, Causes and Implications
More LessAbstractThroughout the Ummah, fertility levels are dropping dramatically for many countries and sub-national populations--and traditional marriage patterns and living arrangements are undergoing tremendous change.
There remains a widely perceived notion that “Muslim” societies are especially resistant to embarking upon the path of demographic/familial change that has transformed “more developed” areas (UN terminology). But such notions are utterly uninformed by the important new demographic realities that reflect today's life patterns within the Islamic world. Indeed: the plain fact today is that the most momentous fertility declines ever witnessed, in both magnitude and tempo, are today being registered in Muslim-majority societies. Changes in family formation patterns, likewise, are occurring faster and at much lower income levels in parts of the Muslim world than were recorded in the past in now-affluent Western societies.
This study will outline, analyze and assess the dimensions, determinants and implications of the profound fertility declines and revolutionary changes in family life now evident within the Ummah, focusing special attention on the Arab world, utilizing data from DHS surveys, national censuses, and international demographic and social science databases (including the World Values Survey).
Applying demographic tools and also what might be called “strategic demographics” to the analysis of changes in patterns of fertility and family formation in the Islamic world will enhance understanding of society, economy, politics, and future development prospects for these peoples and states. This is a neglected area of research inquiry, but it is nevertheless of vital importance to understanding these societies and their futures.
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Qatar Shelter Initiative: Increasing the Effectiveness and Efficiency of Disaster Relief Through Human-Centered Design and Knowledge Management
Authors: Bowman Heiden, Roman Turczyn and Alaa Al-HawariAbstractThe escalating frequency and intensity of natural disasters exacerbated by conflict and global challenges are increasing the need for humanitarian aid and having a dramatic impact on human and economic costs. In 2010 alone, 263 million people were devastated by natural disasters with experts predicting this number potentially increasing to 375 million people by 2015. Although there are 600,000 active aid workers worldwide, there are critical gaps in the industry's capacity to conduct research, effective knowledge management, and standardized training and accreditation.
Using a holistic, inter-disciplinary, human centered design methodology the Qatar Shelter Initiative (QSI) focused on uncovering the systemic challenges that reduce the effectiveness and efficiency of disaster relief, especially related to shelter. Through field site visits to Haiti and Indonesia, literature reviews, surveys, focus groups and individual interviews, key bottlenecks were identified including lack of research that bridges the gap between emergency shelter and permanent shelter, the treatment of shelter needs as a technical issue only, technical experts and volunteers that are not familiar with disasters, no standardization of formal training for humanitarian aid professionals, no regulatory body to determine who or what organization is qualified to execute shelter programs, lack of retention and disseminated institutional knowledge within the disaster response sector, and organizations that do have shelter as a core competency but conduct shelter because of the dire need.
The study has resulted is a multi-faceted approach to creating and managing knowledge to support the international disaster response community in developing culturally appropriate solutions for the reconstruction of communities that address short, intermediate and long-term needs, designing and effective virtual community-based knowledge management solution that provides immediate and relevant access to information for those sourcing information in the disaster management field, and developing specific programs for knowledge transfer linking the in-depth knowledge of a few experienced practitioners to the influx of a large cadre of new volunteers.
The study is a collaboration of Design Zone/QSTP; Qatar Red Crescent; Virginia Commonwealth University and Qatar University. Habitat for Humanity International and the International Federation of Red Cross Red Crescent Societies are also supporting this initiative through contributing their expertise.
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The Effects of A 6-Month Intervention on Student-Athletes' Reactive Stress Tolerance
Authors: Jaime Diaz-Ocejo and Charalampos FountoulakisAbstractThis study examined whether the reactive stress tolerance of male adolescent student athletes of a high-performance sport academy improved after a 24- week intervention which included Progressive Muscle Relaxation (PMR) and imagery. Participants (N=36) responded to a psychomotor test measuring reactive stress tolerance, in which they were presented with visual/coloured stimuli and acoustic signals. The presentation speed of the stimuli adapted to the respondents’ performance level. After the completion of this test, the participants engaged in an intervention designed to learn progressive muscle relaxation and imagery skills through an eight-week education phase, an eight-week practice phase and another eight-week implementation phase. In the implementation phase, progressive muscle relaxation and imagery sessions were expected to become part of the participants’ comprehensive training in sport in an organised manner. At the end of the intervention period, the student-athletes were requested to take the reactive stress tolerance test again. Results showed that student-athletes' reactive stress tolerance was significantly improved (t(35)=2.825, p=0.008) in the post-intervention test (M=0.1742, SD=0.0714) compared to the pre-intervention test (M=0.2049, SD=0.0947). It was concluded that progressive muscle relaxation and imagery have a positive effect on the adolescent student-athletes' reactive stress tolerance.
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Understanding the Building Blocks of Interpreting Complex Medical Graphs for Enabling Evidence-Based Medical Decision Making
Authors: Angela Brunstein, Joerg Brunstein, Anam Waheed and Bakr NourAbstractUnderstanding health statistics in graphical or numerical format is essential for evidence-based medical decision making. It has been reported repeatedly that physicians, medical students, and patients perform poorly when interpreting those kinds of information. With the current research we started to decompose skills and competencies needed for interpreting complex medical graphs. We invited students at Weill Cornell Medical College in Qatar to fill in a questionnaire on www.SurveyMonkey.com that contained three visual medical tasks and one well-investigated complex diagrammatic reasoning task from economics.
We expected that students’ performance would improve with years at the medical college for medical tasks, but not necessarily for an unrelated diagrammatic reasoning task. 85 students (between 8 and 19 students per class) participated in this research.
For the diagrammatic reasoning task, students performed as poorly as reported in the literature and there was no statistically significant difference between pre-medical and medical students. In contrast, medical students outperformed pre-medical students for a gastrointestinal anatomy test and for two general surgery tasks on steps and structures associated with cholecystectomy.
These results replicate findings of low performance for interpreting complex graphs. At the same time, medical education seems to foster students’ understanding of simple graphs in their domain and might prepare them for understanding more complex graphs in that domain. Currently, we are working on extending our research to decompose students’, physicians’, and patients’ understanding of survival curves as complex graphs in the medical domain needed for evidence-based medical decision making.
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The Collocates of Women in Liberal Versus Politico-Islamic Discourse
More LessAbstractThe status of women in the Middle East has always been a a controversial issue, but there does not seem to have been quantitative studies of how the political and religious attitudes reflect on the presentation of women in the Arabic media.
The current study examines the way women are presented in two websites of general circulation with the purpose of unearthing the linguistic connections of “woman” in liberal versus politico-Islamic discourse.
The study uses computational and corpus linguistics techniques to investigate a corpus of 40 million words extracted from the political Islamic website http://www.ikhwanonline.com and the liberal website www.almasry-alyoum.com in search for the collocates of the word “woman” in all its possible morphological representations. Due to the morphological richness of Arabic, the words were first stemmed, i.e. all the clitics were removed from the words, before all words within the range of 5 words before and after “woman” were subjected to collocational analysis using a combination of pointwise mutual information and raw frequency counts as a measure of association. The top 100 stems in each corpus source were selected for comparison.
The results of the study give a strong support to the conclusion that liberal and Islamic websites treat women differently. While the liberals stress political participation, rights, and work equality, the Islamists stress home, marriage, pregnancy and children. While the results are not new in the sense that this may sound like common knowledge, the study provides quantitative analysis and proof of the results.
We have provided quantitative analysis of large amounts of data in the study of a linguistic and humanities filed, an area that is still lacking in Arabic linguistic research. We hope to augment this with qualitative research in the future over the same data sets.
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Media Learners' Trends toward Language Training Materials at The Undergraduate Level and Their Impact on Shaping Their Perception of the Arab Identity: A Comparative Morphological Field Study on Various Media Faculties and Departments in Public and Private Educational Institutions in Jordan, Egypt and Qatar
More LessAbstractBackground: The problem with the study lies in answering a series of scientific questions and assumptions that can be raised within the context of the following research question: “What is the nature and limits of interest of academic qualification institutions in the Arabic language, as compared to English, in educational courses offered by them at the undergraduate level - as this is the primary stage that interest in Arabic and oral presentation skills can be stressed, as compared to post-graduate education - and also because this stage is considered the main provider of staff for media institutions, including print and electronic newspapers , radio and television as well as advertising and public relations firms; what is the impact of teaching in English on young people's understanding of the nature and importance of the concept of Arab identity, which they only hold its surface morphological features?; what are the intermediate variables affecting the students’ attitudes toward the adequacy and effectiveness of these subjects in shaping their linguistic capabilities? “
Main objective of the study: To contribute to spurring the interest of media academic qualification institutions in the Arabic language and oral presentation skills through monitoring the nature and extent of current interest in these subjects and to identify students’ trends toward the language training materials they take.
Study methodology: An interpretative descriptive approach using surveys: to describe and analyze the educational curricula and learning plans for students learning at the media departments and faculties in Egypt, Jordan and Qatar. Also, this approach – with its two components - was used to monitor and measure students’ trends towards the linguistic qualification materials they take and the nature and adequacy of these subjects in qualifying them linguistically.
Comparative approach: has been used to conduct quantitative and qualitative comparisons between the nature and number of hours devoted in study plans for media students for both Arabic and English languages in various social contexts and in Arabic and English public and private educational systems.
Results of the study: 1 - There is a growing interest in English on the part of media departments and faculties, much greater than their interest in Arabic, especially in private universities.
2 – Generally, there is weakness and lack of harmonization in language training materials for media students.
3 - Students tend to have much more interest in language training materials in English than in Arabic.
4 - Students have stressed that the language training materials they take, especially those in Arabic, are not adequate to qualify them properly in terms of language capabilities, and that the style and method in which they are taught are isolated from the language of the media, which should be corrected in order to maximize the benefits of offering language training courses.
5 – Students in different places of study and in different academic specialization had different attitudes towards language training materials.
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Image of Qatar Charity as a Model of Humanitarian Association in the Era of Arab Revolution
More LessAbstractBackground: Qatar Charity is seeking to develop and upgrade its communication strategy not only in Qatar but, all over the world especially at the era of the Arab revolution (Tunisia- Egypt - Syria- Yemen- Libya). The role of Qatar Charity in relief activities presented a model of how the humanitarian organization is supposed to be. This requires knowing the features of the current image. So, this research examined the image of Qatar charity among the Qatari society and how the Qatari public, residents and beneficiaries perceive the organization. In addition the study evaluated the perception and image of Qatar Charity for the beneficiaries in Asia, Africa and Europe. The study is trying to answer the following questions:
What communication tools are frequently used? What are the main components of communication strategy? What about the situational analysis of this communication strategy? (Strengths - weaknesses - opportunities).
Objective: The study seeks to enhance the efforts to reshape and reposition Qatar charity as a model of NGO worldwide.
Method: The study will be descriptive with data gathered via a questionnaire aimed for all groups in the Qatari society and external sectors that we are serving. We will depend on 800 random sample respondents as follows:
250 in Qatar and 550 outside Qatar as follows:
150 Africa sector
150 Asia sector
250 Europe sector.
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An Initial Action Research Investigation into the Effectiveness of Technology in Improving the Teaching and Learning of English Language in Qatar
More LessAbstractQatar is a Gulf state undergoing a sweeping educational reform where educational development is linked to ICT and the English language. ICT is promoted to upskill the future generation or the “digital natives”. English is seen as a key to a myriad of doors and a passport to a world class education. In all public schools, English is a compulsory subject taught from grade one where learners are exposed to English for more than 500 teaching hours every year. It is also the medium of instruction for maths and science.
The purpose of my year-long study was to investigate the effectiveness of ICT in supporting the learning and teaching of English language in the Qatari context. It was guided by the critical paradigm and employed action research as the investigative methodology. The initial data collection process was carried out through a survey instrument. More than 200 students answered questions about their attitudes, perceived values, current uses and issues with ICT. The findings of the study have identified a number of challenges. One of which is the minimal support that ICT is providing to the teaching of the listening skill.
An intervention programme was later designed in a form of a webquest lesson based on CLIL (content and language integrated learning) and informed by the survey findings, student’ voices and previous research in the field. After that, the intervention programme was trialed with two classes (n=50) and evaluated by qualitative (classroom observations) and quantitative instruments (questionnaires). Evidence from the evaluation data showed that ICT has the potential to support the teaching and learning of English language through its positive impact on autonomy and motivation. The results also revealed that teachers have limited knowledge of the potential of ICT and they could play an indirect role in impeding its use.
This study has shown how action research, as a self-reflective inquiry, could broaden our understanding of the role of ICT in language classes. The study concluded that ICT-supported teaching of English in Qatar should be accompanied by a positive ICT culture, reflective research, proper staff training, teacher networking and supportive educational leadership.
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Islamic Perspective of Leadership Correlating Leadership Qualities of Prophet Mohammad (PBUH) as Dominant and Role Model to Change Environment of 21st Century Particularly in Islamic and Arab Countries
More LessAbstract1. The life of the Holy Prophet (PBUH) is an eternal source of guidance and inspiration for all humanity in general and Muslims in particular, which provides us with a role model to be eulogized. Luckily, the minutest details about the life, conduct and behavior of the Holy Prophet (PBUH) are preserved with the maximum possible degree of exactitude. However, writing a paper with a focus on Prophet's (PBUH) acumen on Statesmanship and Leadership is a challenging task as there is no dearth of scholarly works on the moral, spiritual and social areas of the life of the Holy Prophet (PBUH).
2. The Prophet (PBUH), during his stay at Madina, acted as the Head of the State, judge, chief administrator, military commander, and educator etc. His experiences in solving problems and difficulties of the citizens covering diverse spheres of the society can be easily copied to sort out governance and administration problems presently faced by the world in general and Islamic countries in particular. In addition, the application of his immense leadership qualities conform to the present change environment needs of 21st century. His quality can be derived from the principles of military tactics and strategy, which he followed for countering subversion, treachery, aggression and invasion, and the training of men in arms and the art of warfare, which were necessary for the ultimate defeat of the enemy.
3. It is time perhaps that we study afresh the superb leadership and statesmanship exhibited by the Holy Prophet (PBUH) depicted under difficult conditions. This will help us to draw appropriate lessons for application in existing change environments need of 21st century particularly for strict adherence of Islamic countries. This paper is a humble attempt towards that direction.
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Influence of Ramadan on Sleep Quality and Chronotype in Qatari Football Players
Authors: Christopher Paul Herrera and Abdulaziz FarooqAbstractBackground: The observance of Ramadan involves daily fasting from sunrise to sunset and often leads to a delay in bedtime, decrease in total sleep time, and reduction in sleep quality. Such changes in athletes may influence the preference for morning versus evening physical activity (e.g. chronotype) but have not been previously evaluated.
Objectives: To determine the influence of Ramadan on subjective sleep quality and chronotype in Qatar football players.
Methods: Thirty-five football players (18–35 years) from Qatar Stars League were queried before and during Ramadan on their usual sleep habits and chronotype using standardized sleep questionnaires and a modified version of the Athlete's Morningness-Eveningness Scale.
Results: The median habitual bedtime before Ramadan (12:00 am) was delayed during Ramadan (4:00 am) however habitual wake times were skewed such that the total sleep time remained unchanged; 8–8.5 hours on average before and during Ramadan, respectively (p>0.05). The level of daytime sleepiness before and during Ramadan was within normal range and remained unchanged (p>0.05), however, symptoms of insomnia increased (p<0.01); during Ramadan the athletes reported more problems waking too early and greater interference with daily functioning (e.g. daytime fatigue, concentration, mood). There was little difference between reports of ‘morning-type’ versus ‘evening-type’; for example ‘evening type’ before Ramadan (59%) was similar during Ramadan (56%). The time preference for training is shown in Figure 1 ; before Ramadan 34% of athletes preferred training between 3–5pm whereas during Ramadan 51% of athletes preferred training between 7–9pm; though statistical significance was not met (p>0.05).
Conclusions: Ramadan negatively influences subjective sleep quality and perceived daytime functioning in Qatari athletes. Despite only modest changes in chronotype, the time preference for training was largely delayed during Ramadan and may influence sports performance. Therefore, sleep and chronotype are important factors to consider when planning sports training during Ramadan.
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Public Awareness of the Role of Civic Organizations in Qatar
Authors: Mamoun Mobayed, Nahed AlBouainain and Hakima MounabbihAbstractBackground: Civic organizations play a major role in the welfare of society and they are a good indication of how developed a society is. Over the last few years the state of Qatar has witnessed the development of several such organizations, dealing with various aspects of the psychological and social life, for both individuals and families. There has been some debate and discussion, particularly in the local media, regarding whether or not people living in Qatar are aware of these civic organizations and to what extent they are aware of the specialties and services provided by these organizations.
Objectives: The Social Rehabilitation Centre Doha, wanted to test the knowledge and awareness of people living in Qatar and so chose ten organizations as examples These ten selected organizations deal mostly with treatment, counseling, rehabilitation and support for individuals or families.
Methods: This is a survey of 505 subjects in Qatar. The participant group was made up of both Qatari citizens and expatriates, both males and females of different age groups. The survey investigated participants’ knowledge of ten civic organizations in Qatar. We used a questionnaire designed specifically for this survey, and we presented the participants with 25 scenarios, each of which raised a different problem, and asked them to name the organization(s) they are more likely to consult for each of these problems. Statistical analysis was then performed.
Results: It is obvious from the results of the survey that although there is some overlap between some of these organizations, the studied participants have a good understanding of the specialties and services provided by these organizations. The study shows that there is still room for these organizations to raise further awareness about themselves through launching campaigns using varied media sources.
Conclusions: Although the survey shows that the studied sample has a good understanding of the roles and specialties offered by these ten organizations, it also shows there is a need for such organizations to communicate effectively with each other in order to improve their services to the society at large. Several recommendations were made, which will be presented at the Conference.
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The Attitudes of Qatari Nationals and White-Collar Resident Workers Towards the New Traffic Law in Qatar: Preliminary Results from the SESRI 2011 Omnibus Survey
Authors: Elmogiera Elawad, Abdoulaye Diop and Kien LeAbstractIn 2007 the government of Qatar enacted a new traffic law with the objectives of improving the traffic flow and reducing the road traffic-related death and accident rates in the country through policy interventions, mass media and national traffic campaigns. Three years have passed since then and Qatar is still among the countries with the highest death accident rates in the world.
The purpose of this presentation is to highlight the preliminary results of this important study. Using the 2011 Social and Economic Survey Research Institute (SESRI) Omnibus Survey, we ask Qatari nationals and white-collar resident workers about their level of knowledge and awareness of the national campaigns for the prevention of road accidents and their level of commitment to the new traffic law. Respondents were also asked about the main causes of traffic accidents in Qatar and their attitudes towards the new penalties for traffic violation associated with the new law.
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The Role of Qatar University Core Curriculum Program in Improving Students' Academic Performance, Enhancing their Career Development and Fulfilling Qatar National Needs
AbstractInvestigating the impact of the core curriculum on the performance of universities’ graduates worldwide has become a vital trend in determining their institutional effectiveness in providing societies with multi skilful, knowledgeable, and well rounded individuals. In line with this trend, this research attempted to study the role of Qatar University Core Curriculum Program on improving students’ academic achievement, enhancing their career opportunities, and fulfilling Qatar national needs.
The mixed methods research approach was adopted for the purposes of this research. This approach integrates both quantitative and qualitative methods to provide comprehensive understanding and analysis of the variables examined. In addition, a wide variety of direct and indirect data collection methods were utilized such as surveys, tests, rubrics, focus groups, nominal group technique, benchmarking, and content analysis. A targeted sample of different stake holders inside and outside Qatar University was selected. This covered senior and junior students, alumni, faculty, and marketplace employers.
The results indicate that the Core Curriculum has a positive impact on the students’ academic achievement as seen by students, alumni and employers. Also, the results show that employers have positive opinions related to the graduates’ skills, knowledge and depositions. Moreover, the results clearly illustrate that the program is fulfilling 90% of the identified needs. The use of the triangulation analysis has confirmed that the overall results obtained are complementing, and confirming each other. One of the major outputs of this research was the design and validation of the core curriculum program assessment model. In the mean time, to ensure high quality core education, actionable recommendations for continuous improvements for the Core Program at Qatar University were presented.
It is believed that the results of the research will not only add to the human knowledge but also to the international recognition of Qatar since the research is related to what Qatar and other countries worldwide are seeking when it comes to building information-based communities, knowledge based-societies and economy. Moreover, this research endeavor will contribute to meeting the majority of the societal needs that have been emphasized by the Qatar Vision 2030.
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Attributes of the Victims of Domestic Violence in Qatari Society
More LessAbstractBackground: Little is known about domestic violence in Qatar due various cultural factors. Further, the studies that exist ignore victims’ social and cultural factors that prevent the victims from seeking help. That is, there are factors related to family dynamic, gender roles, and culture constraints which make it difficult for victims of domestic violence form seeking help or protection.
Methods: Data collected from 50 cases of domestic violence in Qatar. The data were collected via face-to-face interview in-depth interviews with individuals who experienced various forms of domestic violence in Qatar.
Results: The study found that young married females with low level of educational attunement were more likely than other women to experienced domestic violence. Also, most cause of domestic violence started in early childhood. The predators of domestic violence such as sexual abuse tends to be a close family members who usually not suspected of such activities.
Conclusions: This study in one of the handful studies in this culturally conservative culture that explored domestic violence which is considered a taboo. The social and cultural factors that enable and hinder victims-help seeking behavior identified in this study needed to be examined further in another sample. There is a need to do more work on this topic to understand other factors that facilitate domestic violence in Qatari society. There is no doubt that conservative gender roles play a major role in perpetuating this issue in Qatari society.
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The Situation of Unskilled Workers in the Construction Sector in Qatar: A Survey Study
More LessAbstractThe study aims to analyze the situation of unskilled laborers, in order to identify their problems and to make proposals to improve workers conditions. The study followed the development of presence of foreign workers, as well as analyzing labor laws, and their conformity with the Convention on International Labor and with human rights and applied a survey on random sample of 1114 workers in the construction sector. Interviews were conducted with groups of workers, and with employers.
The Qatari labor law excludes workers in households, agriculture and grazing, which needs to be reviewed and modified, with some gaps exploited by the sponsor such as requiring the transfer of sponsorship with the consent of the sponsor. The National Commission for Human Rights monitoring reports find some workers, especially in the areas of construction, drilling and concrete working under harsh and unsafe conditions, with a lack of adequate health care. 8563 workers of different nationalities had submitted complaints to the Department of Labor, with wages arrears the most important of those complaints.
The sponsorship system eliminates some of the code of labor law, such as the freedom to move to another job or to travel. Workers may remain in custody for long periods without being submitted to the court. The interviews showed that the employers see that the system may need to change, but under an appropriate mechanism to preserve employers rights.
Survey results showed low wages in the construction sector, workers from Nepal are on the lowest wages, and most of workers had borrowed to come to Qatar, low educational levels, poor living conditions, fear of losing their jobs, makes them accept the excesses. Crowding in the rooms and use of only one toilet, lack of drinking water and meals at work sites, lack of awareness about labor laws which exposes them to abuse, whether by the employment offices in their country or the employers in some cases.
The study recommends to look for alternatives to the sponsorship system. Reinforce the concepts of human rights in the relationship between the employer and workers. Improving safety conditions in the workplace.
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Cost-Effectiveness Literature on Cancer Therapies - Trends and the Influence of Industry Involvement on Results
Authors: Daoud Al-Badriyeh, Marwa Al-Ameri and Randa Al-OkkaAbstractBackground: For the last two decades, the size of the literature that is based on the cost-effectiveness (CE) evaluations of pharmaceuticals has only been increasing, together with increasing sponsorship provided by manufacturing pharmaceutical industry.
Objective: The current study attempted to analyze the CE literature, in terms of changing trends overtime as well as the potential influence that industry funding has on results in the CE evaluations in literature.
Methods: Cancer drug-related literature was chosen as the target population of this study. Literature analyzed was that falling between 1991 and 2010, which was further divided into five blocks of 4-year periods for the purpose of description and analyses. Descriptive statistics and Chi-square tests were used to perform nonparametric statistics, with a p-value of <0.05 as the significance measure. Data entry and analyses were performed using SPSS-18.
Results: The size of drug-related cancer CE literature is expanding, with a significant increase in the publishing in the health science and services type of journals. The number of CE studies sponsored by both industry and nonprofit institutes has especially been increasing as well (p-value 0.04). The prospective collection of data peaked at the 1999–2002 duration. The utilization of retrospective data however, has significantly (p-value 0.02) steadily been increasing. Interestingly, while paid consultation involvement grew throughout the years, the declaration of the funding for this involvement has progressively been lacking (p-value 0.015). Importantly, it seems that financial sponsorship by an industry is associated with favorable result to the sponsor (p-value 0.01). This did not exist when non-industry funding was also involved.
Conclusion: This is the first analysis of the pharmacoeconomics literature, whereby, it demonstrates a clear evolvement of the CE literature in terms of size and characteristics, together with an increase in financial sponsorship provided by pharmaceutical industries, which is associated with favorable results to sponsors.
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From Orality to Image: Traditional Qatari Narratives and the Visual Media
Authors: Patty Gibbons, Al Hussein Wanas and Jesse UlmerAbstractFrom Orality to Image: Traditional Qatari Narratives and the Visual Media is a UREP project whose aim is to preserve and re-present traditional Qatari culture by adapting cross-generational oral narratives into text and graphic form. We are using traditional Qatari oral folk tales as the basis of a series of graphic stories. These graphic stories will be collected in an anthology targeted at all readers who are interested in Qatari culture in general, and young adult readers in particular. We believe that these stories, which are both informative and engaging, could be of valuable use in the classroom and beyond to educate young readers about traditional Qatari culture and lore, to promote literacy, and to instil an appreciation for reading and the visual arts.
The main aims are: To increase awareness of Qatari history, tradition and culture among the general reading public and particularly among young adults in Qatar and beyond; To increase reading among young adults who may be resistant to books and other materials that do not support their specific learning styles and/ or relate to their socio-cultural context; To provide opportunities for general and young adult readers to explore a text-based graphic medium to stimulate interest in reading, the visual arts, and Qatari culture; and To encourage bilingual literacy in Arabic and English by presenting versions of the graphic stories in both languages.
Overall, we regard our project as a way to help realize important national objectives and, moreover, that furthering these initiatives will in turn play a critical role in the development of a robust knowledge-based society in Qatar enriched by the contribution of the arts and humanities. The development of science and technology plays an important role in the growth of any modern society, including Qatar, but for a knowledge society to truly thrive, it must also develop artistic and humanistic values, including creativity, innovation, literacy, preservation of heritage and the fostering of cross-cultural dialogue and understanding.
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The New Qataris: Conversion, Identity Choice and Assimilation
By Peggy SouagAbstractA quiet social revolution with far-reaching implications is underway in Qatar: many Qatari men marry women who are not Qatari by birth.
I have focused on what I have termed “the New Qataris:” western women who are neither Muslim nor Qatari by birth. Who are these women and how do they go about the business of becoming and being Qatari Muslims? How do their conversion and their new nationality affect and influence their identity formation?
The research involved an extended period of participant observation, as well as focused discussions. Much useful information was gleaned from ‘living the life’ with women - at coffee mornings and at religious lectures followed by food, etc.
Many of the New Qatari women I observed choose to be ultra-Qatari in their lifestyles as part of their assimilation strategy, forging a new Muslim-Qatari identity in the process. They adopt and adapt the honor-modesty-piety code of the country, sometimes conflating it with the requirements of the Muslim way of life, but often in full knowledge that some of their particular life-style choices are cultural rather than religious.
It is possible that on an unconscious level, in order to diffuse their otherness, these New Qataris try to live the identity of a remembered but vanishing way of life. They live in a self-consciously and publicly “Muslim” way and/or to uphold old-fashioned Qatari values and life-styles, very often to a greater degree than their born-Qatari contemporaries. Thus, surprisingly, they are often the traditionalists, the upholders of the old ways of dressing, being and living, while the “born-Qatari” women at a similar stage of life often seek to be more “modern” and more western. This holds true even for those women who have chosen a more secular life-style.
These New Qataris create a fusion of a universalist Islam, Qatari culture and that of their home countries. Their alternative chosen identity is not only the result of their belief system: it is created by the way they enact ritual, by ways of using language (blending Arabic and English, for example), and ways of dressing, working, eating, living, and making friends.
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The Right of Revolution: a Middle Eastern Political Reformative Trend
Authors: Erik Vos, Indeewaree Thotawattage, Loukas Kyprianou and Jeremy KoonsAbstractThe aim of this research is to identify some of the possible factors that lead to the uprising of the different Arab states, ultimately leading to what we know better as the “Arab Spring”. To be more precise, we shall see if the people were justified to revolt through their cause, and, if it was rightful, than we would witness the difference between a revolt and the right to revolt; the latter is based on anarchy whereas the former rests on a sense of duty. In order to do that, we shall embed ourselves in canonical western philosophy, as well as history, and apply the “philosophical triggers” on a case-by-case study of handpicked countries. Those countries will be Syria, Libya, Egypt, Tunisia, and Qatar. Furthermore, we shall isolate the various points of views extracted from contemporary authors and articles to see if a match can be established with the philosophers and their theories; used as our foundation of this research. The various theories accumulated from the contemporary authors will then be our dichotomy-meter, measuring to what scale the philosophical suggestions hold any truths as reason to these revolutionary uprising (economical, political, principle, rights, ethics…) When a match has been made we will try to understand why some countries were subject to these uprising and other countries in the region weren't. Our final step would be to foreshadow, in the best of our abilities and based on the research at hand, what the future might hold for these countries, which suffered a revolution. These “Blossoms of Revolution” would then reveal the fruits of their tumult, and they would help us in our last task. Finally, if the Holy Qu'ran, the Mandate of Heaven, and the Magna Carta count amongst their words those of a rightful uprising against oppressive rulers then, the Revolution would become a right, a safe-guard that transcends space and time, a tool passed down to use when the time for the generation in question has come, to restore balance between governed and governor.
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The Impact of Electronic Communications on Qatari Family Values
Authors: Miodrag Stamboldziev, Dalal Al Thani and Mark FarhaAbstractBackground: Our research investigates the impact of the sudden profusion of internet media and other forms of global communications on family values in Qatar. The majority of mass communications and sociological research has focused on examining the media content and the audience of the media in the United States and Europe. However, documentation on the societal consequences of the dissemination of internet media and other forms of mass communication on Arab, and in particular Gulf countries such as Qatar, remains scarce. The particular placement of Qatar at the heart of the crosscurrents of globalization affords a unique opportunity to examine this phenomenon.
Objective: This paper attempts to gauge to what degree global communications are driving individualism a modern sense of citizenship and national identity, and to what degree the weakening of family solidarities may have adverse consequences for communal identities and the fabric of households and the nation as a whole.
Methodology: The centerpiece of our research is a survey that attempts to determine inter-generational and inter-class differentials, evaluating the impact of the global communications revolution on the public discourse on family values, as well as on broader social dynamics within the Qatari nation-state. The sample consisted of 54 respondents. Further, a literature review was set to determine the theoretical framework of whether consumption of global communications leads to greater individualization and cultural homogenization alike.
Results: A pattern of cultural homogenization towards the post-industrial model of greater individualism can be observed in a Qatari society permeated with ICT media, even if we have discerned numerous attempts to streamline and attenuate this overarching process by a set of cultural firewalls.
Conclusions: Our research concluded that Qatar finds itself very much in the twilight zone of modernity, witnessing a bewildering pace of expanding realms of knowledge through ICT and educational institutions, yet still evincing a deep desire to hold on to traditional values and identity references. This study therefore challenges the determinism of modernization, globalization or convergence theories, which predict that traditional norms and worldviews and distinctive national and religious identities will be eroded by the exposure to global streams of knowledge.
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The Concept of Fireeq: Is it Truly a Contemporary, Culturally Sustainable Urban Design Paradigm?
More LessAbstractBackground: Harvard University Graduate School of Design has signed an agreement to lead a research project entitled Gulf Encyclopedia for Sustainable Urbanism (GESU). This holistic, multi-year, cross-disciplinary, cross-border study focusing on sustainable urbanism in the Gulf Region is sponsored by MSHEIREB, a subsidiary of Qatar Foundation, Qatar. The methodology will be based on a rigorous understanding of the past, present and future development trajectories in the region as well as on the most current knowledge of sustainability.
Objectives: Through a socio-cultural perspective, this research looks at the tribal migration patterns to and from Qatar and its affect on the concept of “fireeq”. The traditional culture of Qatar was largely based on this concept. It provided the social and physical fabric that bound the Qatari culture together. The research objective is to question and elucidate whether the concept of “fireeq” can be a culturally sustainable urban design model in contemporary times in Qatar.
Methods: Through a research survey of recorded oral histories and written historical accounts, an analysis will be made to determine the relevance of this concept in future residential and neighborhood planning studies for Qatar. This is part of a growing body of multi-disciplinary research to support and inform the goals of the Gulf Encyclopedia for Sustainable Urbanism.
Conclusions: Tribes first established their “fireeq” settlements in Qatar upon their physical attainment of land. In a socio-cultural context, the “fireeqs” were built and expanded as a means of survival; against the constant raids of other tribes; and as a manifestation of the tribal and family unity in a predominantly Muslim society. However, with the vast increase of migration of new families with varying value systems to Qatar in the 20th century and the ensuing life style changes came the act of co-modification of land. With the co-modification of land and transformations of socio-cultural customs and values, the actual applicability of the concept of the “fireeq” slowly began to fade. However, will some aspects of the “fireeq” concept evolve to be vitally effective and culturally important in the future well being and social patterns of Qatari communities' remains to be determined?
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Do Migrants and their Households Talk Finance?
Authors: Eilin Liz Francis and Kham Noung NangAbstractBackground: Our research investigates the impact of the sudden profusion of internet media and other forms of global communications on family values in Qatar. The majority of mass communications and sociological research has focused on examining the media content and the audience of the media in the United States and Europe. However, documentation on the societal consequences of the dissemination of internet media and other forms of mass communication on Arab, and in particular Gulf countries such as Qatar, remains scarce. The particular placement of Qatar at the heart of the cross-currents of globalization affords a unique opportunity to examine this phenomenon.
Objective: This paper attempts to gauge to what degree global communications are driving individualism a modern sense of citizenship and national identity, and to what degree the weakening of family solidarities may have adverse consequences for communal identities and the fabric of households and the nation as a whole.
Methodology: The centerpiece of our research is a survey that attempts to determine inter-generational and inter-class differentials, evaluating the impact of the global communications revolution on the public discourse on family values, as well as on broader social dynamics within the Qatari nation-state. The sample consisted of 54 respondents. Further, a literature review was set to determine the theoretical framework of whether consumption of global communications leads to greater individualization and cultural homogenization alike.
Results: A pattern of cultural homogenization towards the post-industrial model of greater individualism can be observed in a Qatari society permeated with ICT media, even if we have discerned numerous attempts to streamline and attenuate this overarching process by a set of cultural firewalls.
Conclusions: Our research concluded that Qatar finds itself very much in the twilight zone of modernity, witnessing a bewildering pace of expanding realms of knowledge through ICT and educational institutions, yet still evincing a deep desire to hold on to traditional values and identity references. This study therefore challenges the determinism of modernization, globalization or convergence theories, which predict that traditional norms and worldviews and distinctive national and religious identities will be eroded by the exposure to global streams of knowledge.
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Qatar's Mediation in the Lebanese Conflict of 2008: Toward a Cross-Cultural Model of Third Party Diplomacy in Conflict Resolution
More LessAbstractThis thesis examines Qatar's mediation efforts in the Lebanese crisis of 2008 and how it succeeded in resolving the conflict. It explores the possibility of the emergence of a cross-cultural mediation model that may have relevant application to other Muslim countries. The study was informed by the wealth of Western and Islamic approaches to diplomacy. Qatar's mediation in the Lebanese conflict of 2008 demonstrated the use of tactics from both traditions.
The research found that both Islamic and western mediation models are compatible in important respects. The study suggests that building on the strengths of each approach leads to successful outcomes.
Qatar's mediation efforts in the Lebanese conflict employed largely western approaches in combination with Islamic principles and values. The experience has been identified as a new cross-cultural mediation model thvat may have a wider application in the region.
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Sukuk in Islamic Finance: Case Study (Qatar Global Sukuk)
More LessAbstractThis paper aims to review some researches on sukuk, the difference between sukuk and bonds, sukuk kinds, the role of shari’ah supervisory, sukuk case study (Qatar Global Sukuk), many related issues and finally the future for the sukuk.
Sukuk represents the most innovative product of Islamic finance and one of the fastest growing sectors in Islamic finance. Sukuk can be structured based on the principles of contract of exchange such as (Ijarah, Murabahah, Istisna’) and contract of participation such as (Musharaka and Mudarabah). Sukuk structuring takes into account the removal of non shari’ah compliant features such as Gharar, Riba, and Gambling. In Islamic countries there is increasing demand for shari’ah complaint instruments as the rest of the countries as an alternative to conventional instruments. Sukuk market faces problems of it's early stage of development, some Muslim scholars have questioned it's level of compliance with the Shar’iah rules and the main criticism was from Sheikh Muhammad Taqi Usmani, specially Sukuk Al Musharaka, Sukuk Al Mudaraba and Sukuk Al Istithmar. Therefore, the Shariah Board of (AAOIFI) issued it's resolutions in February 2008 to illustrate various areas in sukuk.
By comparision between sukuk and bonds we can realize that the sukuk represent the ownership stakes in well defined assets and the underlying contract for sukuk issuance is a permissible contract, there are 14 categories defined by AAOIFI, while bonds represent pure debt obligations and the core relationship is a loan of money, which implies a contract whose subject is purely earning money on money (riba)
In order to achieve the objective of a developed sukuk secondary market, there should be: greater cooperation among the industry players, better coordination to address the issue of Shari’ah harmonization, Greater participation from corporate sector and financing of Infrastructure projects, Key support by Regulatory bodies, Creation of International sukuk.
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Natural History of Ovarian Cancer Metastasis: An Integrated Approach
By Arash RafiiAbstractEpithelial Ovarian Carcinoma (EOC) is the sixth most common malignancy in women and the leading cause of death of gynecological cancer in the world. EOC has a predisposition to metastasis to the peritoneal cavity. A late stage peritoneal dissemination results in ascites and high mortality rates with an overall survival of 20 to 30 percent at 5 years after surgery.
While many studies in the literature address the issue of distant metastasis, the biology of peritoneal tumor spread in advanced ovarian cancer is not clear. Development of peritoneal carcinomatosis involves well-defined critical steps, including cell shedding and transport, interaction and adhesion to the mesothelial layer, and colonization of and proliferation into the sub-mesothelial microenvironment. It is now appreciated that there must be an initiation of a pre-metastatic niche within the target organ, one that facilitates the survival of tumor cells in a non-receptive organ. We think that a dual approach looking at oncogenomics and heterocellular interaction will allow us to better understand ovarian cancer metastasis biology and help design new therapeutic strategies. Oncogenomic approaches restricted to a given methodology may hinder mechanisms driving progression. We used a comprehensive approach utilizing integrated systems biology platforms to assess the genetic and genomic modifications within a tumor compared to the metastatic lesions. Using this approach we were able to demonstrate the implication of many pathways, in particular the Jak/Stat pathways in the occurrence of metastatic lesions. Moreover we were able to identify NOTCH3 as an amplified locus in primary and metastatic lesions and were able to demonstrate using a cell biology approach the role of the Notch pathway in chemo-resistance.
We will present evidence demonstrating our ability to integrate our oncogenomic approaches with our cell biology findings. Using a comprehensive multidisciplinary approach allowed us to identify some pathways implicated in the development of metastatic lesion in ovarian carcinomas. This will enable us to create new therapeutic strategies aiming at disrupting the interaction between the cancer cells and a permissive environment.
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Proportionate Mortality and Relative Risk from Motor Vehicle Crashes in Qatar: a Tool for Prioritizing Preventive Programs & Research
More LessAbstractBackground: Motor vehicle crashes (MVC's) are a recognized public health problem in Qatar, where they are a leading cause of death. Given the diverse population in Qatar there is a need for evidence to identify high-risk populations bearing a disproportionate MVC mortality burden.
Objective: To identify the populations at the greatest risk for death from MVC's in Qatar, by measuring proportionate mortality (PMMVC) and relative risk (RRMVC).
Methods: An analysis of published mortality and population data was conducted to calculate for PMMVC and RRMVC and identify high-risk populations at a disproportionate risk for MVC mortality.
Results: One in seven (13.9%) deaths in Qatar is due to an MVC. Males are the victim in 90% of MVC deaths, with PMMVC > 30% from 5–29 years. One-half (51%) of all deaths in the 10–19 age group are due to MVC's, with the highest PMMVC for Qatari males (QM) aged 20–29 and for Non-Qatari males (NQM) aged 10–19. MVC's were the leading cause of death for QM's ages 5–39, Non-Qatari females (NQF's) ages 10–19, Qatari females (QF's) and NQM's ages 5–29. The highest RRMVC in the general population was for females ages 5–9 and males ages 10–19. The highest RRMVC is for QF's and QM's ages 20–29. NQF's also have a higher RRMVC than QM's for ages 10–19. The oldest and youngest populations had protective RRMVC's. QM's have more than double the RRMVC, compared to the general population, from ages 5–39 and Qatari females (QF's) extend this risk till the age of 49. NQF's share this elevated risk profile [RRMVC>2] with QF's while NQM's are most at risk from 5–29 years.
Conclusion: MVC's are the leading killer of the largest segment of the population of Qatar, those ages 5–29. Young males [10–29 years] bear a disproportionate PMMVC but females have a higher RRMVC. An elevated RRMVC starts at 5 years and continues till 29 years. A commensurate response in the form of targeted interventions to reduce MVC deaths and research to identify and reduce risk factors amongst the populations with the highest MVC risk and burden should be prioritized.
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Evidence for Renal Lipid Accumulation, Impaired Mitochondrial Fatty Acid Oxidation and ER Stress in the Development of Renal Dysfunction Induced by Obesity
Authors: Shankar Munusamy, Jussara M do Carmo, Jonathan P Hosler and John E HallAbstractObesity is a global epidemic and has been implicated as a risk factor for end-stage renal disease. In this study, we investigated the impact of obesity in the absence of hypertension, on renal lipid accumulation, oxidative stress, mitochondrial function, and endoplasmic reticulum (ER) stress, which could play a major role in the development of obesity-induced renal dysfunction. We compared two genetic mouse models of obesity which we have shown to be normotensive, the leptin-deficient ob/ob mice and a hyperleptinemic melanocortin 4 receptor knockout mice (LoxTB MC4R-/-), to lean wild type (WT) C57BL/6J mice and littermate controls (WT-LoxTB) from LoxTB MC4R-/-breeding colony respectively. We measured urinary albumin excretion, creatinine clearance, renal triglycerides, ATP levels, state-3 mitochondrial respiration, protein carbonylation (a marker of oxidative stress) and C/EBP homologous protein (CHOP) expression (a marker of ER stress) in these mice. Our results indicate that the ob/ob mice and LoxTB MC4R-/-mice exhibit significant albuminuria, increased creatinine clearance (693±61.1 vs. 534±31.5 and 752.3±50.6 vs. 488.9±81.2 μL/min) and renal triglyceride accumulation (8.1±0.8 vs. 4.8±0.2 and 3.9±0.5 vs. 2.2±0.3 mg triglyceride/g tissue) expressed as ob/ob vs. WT and LoxTB MC4R-/- vs. WT-LoxTB respectively. Despite significant decreases in renal ATP levels (6±0.3 vs. 7.9±0.4 and 5±0.2 vs. 8±1.1 pmol/mg) in both obese models, only the LoxTB MC4R-/-mice kidneys showed an impaired state-3 fatty acid oxidation, increased protein carbonylation and 3-fold induction of CHOP protein compared to WT-LoxTB control mice. Taken together, our data suggest that obesity in the absence of hypertension cause only mild renal dysfunction, and unveils the potential involvement of oxidative stress, impaired fatty acid oxidation and ER stress in obesity-induced renal injury associated with MC4R deficiency.
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ChIP-chip Investigation of Epigenetic Changes in Response to Various Glucose Environments
Authors: Yasmeen Salamah, Moneera Al-Jaber, Eman Al-Azwani, Eman Al-Odus, Binu George and Joel A. MalekAbstractWith the rise in incidences of Diabetes within the Middle East, it will be important to understand the environmental and genetic components of the disease. Epigenetic changes, including DNA methylation and Histone modifications, can be a response to environmental signals resulting in stable gene expression changes. To begin understanding the epigenetic effects of glucose in the diet we conducted Chromatin Immunoprecipitation followed by tiling array (ChIP-chip) analysis on in vitro cultures of cells grown in varying amounts of glucose. We have investigated the effects on DNA methylation and various Histone methylation levels. Results from this study are presented. Initial results from this study will guide more detailed analysis of the progress of epigenetic changes, their stability, and their possible transmission to future generations.
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Arsenic/Interferon Combination: A Novel Therapeutic Approach to Target CML Stem Cells
Authors: Rihab Nasr, Ahmad Iskandarani, Jessica Saliba, Rabab El Eit, Hanadi Elayoubi, Hugues de The and Ali BazarbachiAbstractImatinib is currently the standard drug used in the treatment of CML patients. However, imatinib is not curative since most patients who discontinue therapy will relapse. Interferon alpha (IFN) induces hematologic and cytogenetic remissions and interestingly, prior exposure to IFN allowed Imatinib discontinuation in some CML patients. Arsenic trioxide inhibits the proliferation of BCR-ABL-expressing cells.
We have investigated the effects of the combination arsenic/IFN on the proliferation of CML cell lines. We found that IFN alone had minimal effect. Arsenic alone significantly decreased their proliferation in a time and dose-dependent manner. Interestingly, the addition of IFN to arsenic was synergistic in AR230 and additive in K562. This synergistic effect between IFN and arsenic was accompanied by dose-dependent apoptosis as evidenced by annexin V staining, TUNEL positivity and caspase activation. Colony-forming assay was performed on bone marrow and CD34+ cells collected from CML patients. Interestingly, arsenic and IFN produced a synergistic decrease in myeloid colony formation, especially when compared to Imatinib.
Preliminary results of an in vivo study using the retroviral transduction CML mouse model showed prolonged survival of secondary recipients that received cells from primary leukemic mice treated with arsenic/IFN, as compared to those that received cells from untreated controls. These results suggest that arsenic and IFN synergize to inhibit proliferation, induce apoptosis and target dormant CML stem cells that are spared by Imatinib.
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Detection of Early Infection with Flu Viruses in Patients with Bronchial Asthma and COPD in Winter Season in the State of Qatar
More LessAbstractFlu infections are viral infections of the upper and lower respiratory tract which are an important cause of morbidity in patients with bronchial asthma, chronic obstructive pulmonary disease (COPD), old age and other chronic medical conditions, usually occur in outbreaks mainly during the winter season, and require inpatient and outpatient care. Objectives: 1) understanding the viral etiologies of respiratory tract infection among patients who presented to chest clinic during the winter season from first October 2008-31 March 2009 with the diagnosis of asthma and/or COPD. 2) While Hamad Medical Corporation laboratory uses Immune Fluorescent Assay (IFA) to test for five viruses: Respiratory syncytial virus (RSV), influenza A & B virus, Para-influenza virus and Adenovirus, an objective of this study was to develop and evaluate a new diagnostic test using Real-time PCR to detect 15 viruses simultaneously. Those are: Flu A&B; Corona viruses (Cor63, 229 & 43), Parainfluenza viruses (para1,2,3&4), Human metapneumovirus (Hump A and B), Rhinovirus (rhino), RSV(A & B) and adenovirus (AV)). Methods: Nasal swabs were collected (to detect upper respiratory viruses). Patient's personal data as well as diagnosis and medical history were gathered using questionnaires filled by the doctor treating the patients at the time of the nasal swab. These questionnaires were analyzed using SPSS V.14. Results: The sample size consisted of 200 patients, 18 years of age or older, with asthma and/or COPD. Out of the 200 patients, 190 had asthma and 10 had COPD. However, only 36 patients had viruses related to respiratory tract infection; 31 of which had asthma and 5 had COPD. It was found that the Rhino viruses are the most predominant respiratory viruses. Additionally, using Real-time PCR enabled the detection of more than five viruses at the same time with similar sensitivity and specificity when compared to the Immune Fluorescent Assay.
Conclusions: To our knowledge, this is the first report of respiratory tract viral infections from Qatar. Detection of these infections may have significant clinical implications in the study population. Additionally, it was found that the new diaginostic-respiratory detection by real-time PCR technique was able to detect more than five viruses at the same time compared with the (IFA) with similar sensitivity and specificity.
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The Effects of Heat Exposure on Cognitive Performance
By Nadia GaouaAbstractIn addition to physical conditioning, successful sporting performance requires a level of perception coupled with efficiency and accuracy in movement. The FIFA World Cup is usually played during the summer months; therefore the aim of this study was to investigate the effects of heat exposure on cognitive performance.
Three experiments were performed in an environmental chamber under hot (HOT: 50°C, 30% rH) and control (CON: 24°C, 30% rH) conditions. Exposure time ranged from 15 minutes to 4.5 hours. Subjects performed simple and complex cognitive tasks under different levels of thermal strain. Neuromuscular assessments were performed to assess neural drive and muscular force production. Central (Tcore) and skin (Tskin) temperatures were recorded along with subjective measures of thermal comfort (TC) and thermal sensation (TS).
Hyperthermia had no impact upon attention tasks, however, impulsivity increased during sustained attention over prolonged periods. Significant increases in Tcore (>38.30°C) were associated with impaired complex cognitive task performance. The regular application of cold packs to the head limited the detrimental effects of hyperthermia upon short-term memory. However, rapid and substantial variations in Tskin of ∼3°C, independent of changes in Tcore, had similar detrimental effects upon cognitive task performance.
Results suggest that reductions in complex cognitive performance with heat exposure occur via a decrement in motor cortical excitability when Tcore increases to ∼38.3°C, but they also originate from an additional cognitive load imposed by thermal strain and the resulting allesthesial Tskin variations; with both these factors acting as competing variables to the cognitive processes.
The increase in Tcore with prolonged heat exposure impairs cognitive performance; however applying cold packs to the head can preserve these. Increases in Tskin during brief heat exposures appear to be a sufficient physiological response to alter the emotional state of individuals and impair effective decision-making. Hydration protocols and reducing exercise intensity and load can reduce the physiological strain. Strategies to minimise the ‘thermal shock’ of entering a warm environment should be developed to minimise the impact of subjective feelings of thermal discomfort upon cognitive performance.
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The Development of an Athletic Performance Predictive Genetic Test
Authors: Vasiliki Chini and Hatem El-ShantiAbstractBackground: Genetic factors play an important role in the performance of athletes. There are known gene variations that contribute to athletic endurance or muscle performance, while other variations influence the susceptibility to injuries or Body Mass Index (BMI).
Objectives: The aim of this project is to develop a comprehensive molecular genetic predictive test which, employs the analysis of multiple specific gene variations and can be applied to young children to assist in the choice of the appropriate sport and the preparation of an athlete.
Methods: 31 single nucleotide polymorphisms (SNP) clustered in24 genes and known to be associated with athletic performance were selected. The genotyping is by Real-Time Polymerase Chain Reaction (RT-PCR) using TaqMan assay technology with probe and multiple primer chemistry. This was applied to 10 anonymous DNA samples to assess the adequacy of the test and to choose controls for future sample genotyping. Genotypes were validated by direct resequencing.
Results: Genotypes were generated for 31 SNPs for the 10 DNA samples and validated by resequencing. All RT-PCR results (repeated twice for confirmation) were consistent with the resequencing results.
Conclusions: We have developed a panel of 31 SNPs reported in the literature to play a role in athletic ability and performance. The panel serves as battery for predictive tests that can predict susceptibility to injuries, as well. The genotyping can be done in mass and the genotyping of the whole panel is cost permissive. This test can be applied to young promising athletes to guide in the choice of the sport and in their preparation and training. Furthermore, the panel can be utilized to guide older athletes, to improve their training and avoid injuries.
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Cisplatin's Modulation of Intracellular Calcium Concentration is Related to the Viability of the Breast Cancer Cells, MCF-7
Authors: Nawaf Al-Taweel, Elizabeth Varghese and Dietrich BüsselbergAbstractBackground: Cisplatin (cis-diamminedichloroplatinum (II), CDDP) is a highly effective antitumor drug. However, tumors can acquire resistance to CDDP. CDDP elevates the intracellular calcium concentration ([Ca2+]i), in various cell lines, leading to the activation of apoptotic pathways and cell death. Using cultured breast cancer (MCF-7) cells we: (1) investigated the effects of CDDP on [Ca2+]i, (2) compared these results to a cell line that has been desensitized to CDDP (“resistant”), (3) investigated the source of [Ca2+]i by modulating calcium channels and transport mechanisms, and (4) correlated these findings to cytotoxicity. Methods: Changes in the [Ca2+]i were recorded using fluorescence microscopy and Ca2+-binding fluorescent dye, Fluo-4AM. CDDP (1nM-10μM) was administered via a bath perfusion system to the sensitive and CDDP-”resistant” MCF-7 cells over a period of 1.5–2.5h. The [Ca2+]i modulators, (caffeine; 10mM, nimodipine; 10μM, ionomycin; 10μM, thapsigargin; 500nM, and 2-APB; 50μM) were administered. MTT assays and trypan blue cell viability tests were performed using CDDP at concentrations of 100pM, 1nM, 10nM, 100nM, 1μM, 10μM, 100μM, 1mM, and 10mM after 4, 8, and 24h of incubation. Results: CDDP induced a concentration-dependent increase of [Ca2+i. A concentration of CDDP 0.1μM triggered the largest elevation of [Ca2+]i with 120% increase (n=19). Induction of cytotoxicity was most likely directly correlated to the increase of [Ca2+]i, and was significantly lower in CDDP-”resistant” cells (P←0.05). Preapplication of the calcium channel blocker, nimodipine as well as the IP3 receptor blocker 2-APB significantly reduced this elevation (46.6%; n=26, 71.4%; n=52, increase, respectively) (p←0.05). Surprisingly, when [Ca2+]i was elevated due to the pre-application of caffeine, ionomycin or thapsigargin, the subsequent application of CDDP was also significantly reduced compared to control conditions (37.8%; n=15, 34.9%; n=32, 53.7%; n=21, increase, respectively) (p←0.05). Conclusion: CDDP concentration-dependently elevates [Ca2+]i by Ca2+ entry and Ca2+ release from the stores. These mechanisms, however, seem to be less effective in CDDP-”resistant” cells since they show increased restriction on Ca2+ elevation. The pre-elevation of [Ca2+]i, through releasing Ca2+ from the stores, reduces this elevation significantly. The exact mechanisms remain unclear and further investigations are required to determine the mechanisms and pathways that are involved in the disruption of [Ca2+]i.
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STIM1 Function in Mitosis and Meiosis
Authors: Rashmi Kulkarni, Johannes Graumann and Khaled MachacaAbstractThe endoplasmic reticulum (ER) functions as a storehouse for intracellular Calcium. STIM1, a Calcium sensor localizes mostly to the ER membrane in interphase under resting conditions. Following Ca2+ store depletion, STIM1 forms puncta that localize to the cortical ER and binds Orai1, a Ca2+ channel to allow Ca2+ influx. This mechanism of Ca2+ influx is termed Store-Operated Calcium Entry (SOCE). Orai1 is internalized during meiosis and STIM1 fails to aggregate even when intracellular Ca2+ stores are depleted in both mitosis and meiosis. This causes inhibition of SOCE during mitosis and meiosis. This is an important mechanism to prevent sporadic Ca2+ influx that could disrupt its specialized functions during the cell cycle. We are interested in elucidating the mechanisms that allow STIM1 to cluster during interphase but not during M-phase.
We have taken a proteomics approach to identify proteins that function in hSTIM1 clustering following store depletion, and to determine what makes mitotic cells different in this aspect. We have immunoprecipitated proteins that bind hSTIM1 in HEK 293 cells with the Ca2+ store full or depleted in both mitotic and non-mitotic cells. We used iTRAQ labeling to identify proteins that bind hSTIM1 and to obtain relative quantification among the different treatment groups. This will help in defining function of these proteins under the different experimental conditions. We have identified over 400 proteins that co-immunoprecipitate with hSTIM1. The data suggest that hSTIM1 is a component of distinct complexes within the cell and such may have additional functions apart from SOCE in HEK 293 cells. Gene ontology enrichment is being done on this dataset to assign these proteins to different complexes. Deviating ratios of proteins within complexes under different conditions will provide us with an insight into their functions with hSTIM1 during interphase and mitosis.
We are taking a similar approach to identify proteins that function with hSTIM1 during interphase and meiosis using Xenopus oocytes expressing mCherry-tagged hSTIM1.
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Preserving Therapeutic IL-2 Stability and Bioactivity: A Novel Controlled Release Polymeric Drug Delivery Approach
Authors: Husam M Younes and Mohamed ShakerAbstractIntroduction: The application of therapeutic proteins and cytokines like Interleukin-2 (IL-2) for long-term, localized delivery has been hindered by a lack of a delivery device that releases active protein at a concentration within their therapeutic window. The purpose of this oral presentation is to report on the osmotic-driven, controlled-release from novel visible-light photocrosslinked biodegradable elastomeric devices recently designed in an attempt to overcome this limitation.
Materials and Methods: All chemicals were purchased from Sigma-Aldrich and used as received. Novel biodegradable and biocompatible poly (decaneco- tricarballylate) [PDET] elastomers were synthesized by polycondensation reaction between tricarballylic acid and alkylene diols, followed by acrylation and photo-curing. IL-2 loaded micro-cylinder and disk-shaped elastomeric devices were prepared by intimately mixing IL-2 lyophilized powder with the acrylated prepolymer prior to photocrosslinking. IL-2 release was analysed using IL-2 ELISA system and the in vitro bioactivity of released IL-2 was assessed using C57BL/6 mouse cytotoxic T lymphocyte. The influence of various parameters such as the elastomer crosslinking density, the volumetric drug loading percentage and the incorporation of osmotic excipients like trehalose on the release kinetics of the drug was also examined.
Results and discussion: The disk-shaped specimens showed faster IL-2 release profiles than microcylinders, with drug release proceeding via typical zero-order release kinetics. The increase in the device's surface area and the incorporation of trehalose in the loaded lyophilized mix increased the IL-2 release rate. As well, it was shown that the decrease in the degree of prepolymer acrylation of the prepared devices increased the IL-2 release rate. Cell based bioactivity assays showed that IL-2 released over a period of 28 days, retained more than 94% of its initial activity. These bioactivity results represent a highly significant improvement over the other previously published data provided with a quantitative analysis of the actual percentage of bioactive IL-2 released during the period of the release study.
Conclusion: The novel PDET elastomeric drug delivery systems demonstrated to be promising as protein drug delivery vehicles for localized and sustained IL-2 immunotherapy.
Acknowledgements: Work is supported by QNRF through the NPRP grant # 09-969-3-251 awarded to HM Younes.
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Identification and Mapping of Locus on the Long Arm of Chromosome 4 that is Associated with Mental Retardation and Optic Atrophy in a Qatari Aamily with Undelineated Autosomal Recessive Disease
AbstractBackground: Autosomal recessive diseases are the single largest category of single-gene disorders among Arab population. A Qatari family includes 6 individuals from 3 related consanguineous sibships, with mental retardation. The clinical picture comprised significant mental retardation, retinal degeneration, optic nerve atrophy, and ataxic gait. They suffer also from oedemal puffiness of hands and feet. All parents and the unaffected family members are healthy.
Objective: Identification of undelineated autosomal recessive disorders among families in the Arab world, especially in the Gulf region.
Methods: Whole genome genotyping was done by (Illumina 300Kb SNPs), followed by homozygosity mapping and linkage analysis. Targeted resequencing of candidate genes was preformed within the linked loci.
Results and conclusions: Homozygosity mapping revealed a 19.6 MB segment in the long arm of chromosome 4 flanked by rs4345237 (4q12) and rs422140 (4q13.3). This interval contains more than 100 genes, none of which has been implicated in any of the above mentioned phenotype so far. Candidate genes were selected and we are in the process of sequencing them. In addition, whole exome sequencing will be performed to expedite the mutation identification.
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The Generation of a Novel Chimeric Antigen Receptor for Cancer Immunotherapy
More LessAbstractT-cells genetically modified to express a chimeric antigen receptor (CAR) against a tumor associated antigen are attractive anti-cancer therapeutic agents. The 5T4 cell surface oncofoetal antigen is an attractive target antigen for cancer immunotherapy as it is expressed by a wide spectrum of cancers including gastric, ovarian and colorectal while showing limited expression in normal adult tissues. Previously it was shown that human and murine T-cells engineered to express human 5T4 specific CAR can specifically lyse human 5T4-expressing tumor targets in vitro and in vivo, respectively. This study aimed to isolate single chain variable fragments (scFvs) specific for murine 5T4 (m5T4) and to examine their efficacy in the context of CAR in a fully autologous model. Screening four novel hybridoma cell-lines producing anti-m5T4 monoclonal antibodies to clone the scFv yielded one functional m5T4-specific scFv from the hybridoma cell-line P1C9. The P1C9 scFv expressed as a fusion protein with the Fc domain of human IgG significantly labels m5T4-expressing targets. Murine T-cells modified to express the P1C9 scFv fused to the CD3? molecule can specifically lyse target cells in vitro and result in IFN-? cytokine release, while T-cells expressing the non-signalling CAR derivative; P1C9 scFv fused to the murine MHC-I transmembrane domain, were unable to lyse m5T4-expressing tumor targets. On-going experiments aim to test the efficacy and assess the toxicity of m5T4-specific CAR against m5T4-expressing tumor models in vivo. This model will allow further understanding of how gene-modified T-cells function in an autologous setting with the aim to improve human T-cell based cancer immunotherapy.
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Analyzing the Synergistic Effects of Retinoic Acid and TRAIL on the Induction of Apoptosis in Oral Squamous Cell Carcinoma-Derived Cell Lines
Authors: Ahmed Alsaei, Kwame Osei-Sarfo and Lorraine GudasAbstractHead and neck squamous cell carcinomas (HNSCCs) develop in the mucosal linings of the upper aerodigestive tract and are the sixth leading cause of cancer worldwide. They are initiated by tobacco and alcohol consumption, and by infection with high-risk types of human papillomavirus (HPV). The neoplastic process begins with the normal epithelium progressing through hyperplasia to dysplasia to carcinoma in situ and invasive carcinoma.
Retinoic acid (RA) and its derivatives (retinoids), metabolites of vitamin A, have been recognized as a group of cancer chemopreventive and therapeutic agents, because of their ability to induce differentiation of various types of stem cells and arrest of cellular proliferation. Recent studies show that RA sensitizes colorectal cancer cells to apoptosis by inducing the proapoptotic ligand, TNF-related apoptosis inducing ligand (TRAIL). RA increases the expression of TRAIL receptors, Death Receptors 4 & 5 (DR4/5), while suppressing TRAIL nonfunctional receptors, Decoy Receptors 1 & 2 (DcR1/2) in colorectal cancer cells. In this study, we analyzed the synergistic effects of RA and TRAIL on the induction of apoptosis in human oral squamous cell carcinoma derived cell-lines.
The human HNSCC cell lines, SCC-15, SCC-25, and OKF6/hTERT-1 (an immortalized oral mucosa cell line), were treated either with RA, TRAIL, or RA and TRAIL for 7 days. These treated cells were then analyzed for changes in cell proliferation (by growth curves), gene expression (by semi-quantitative PCR), and markers of apoptosis and differentiation (by Western blot). It was expected that cellular proliferation and expression of DcR1/2 would be reduced in cells treated with RA and TRAIL, while expression of DR4/5 and markers of apoptosis (PARP cleavage) would be higher in RA and TRAIL-treated cells. We show that RA and TRAIL decreased cellular proliferation in the OKF6/hTERT-1 cell-line; however, RA in combination with TRAIL did not result in a significant change in SCC-15 or SCC-25 cell-lines. In addition, Western blot results show that RA and TRAIL increased the cleavage of PARP in the SCC-25 cell-line. Finally, as expected, RA decreased the expression of Oct4, a stem cell marker, and increased the expression of E-cadherin, an epithelial cell marker.
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Autism in Qatar: Quality of Life of the Caregivers
Authors: Sara Hayder Ahmed, Muna Al-Ismail, Nadir Kheir, Ola Goneim, Amy Sandridge and Fadhila Al-RawiAbstractBackground: Caring for an autistic child places significant stress on the lives of family members. To date, no study has evaluated how looking after a child with autism affects quality of life (QoL) of caregivers in Qatar or the Gulf country region. Our study is aimed at quantifying the health-related QoL of caregivers of children with autism in Qatar.
Methods: We recruited two groups of caregivers of children between 3 to17 years old. The first group was formed of caregivers of children with autism from two developmental paediatric rehabilitation clinics, and the second group was formed of caregivers of typically-growing children and who were visiting a family clinic for routine medical check-up. Demographic information of all caregivers and children were collected. The Arabic version of the Short Form-36 (SF-36), which is a generic type questionnaire, was administered to caregivers in both groups to assess QoL.
Results: A total of 98 participants consented to take part in the study. 56 were caregivers of children with autism, and 42 were caregivers of a typically-growing children. There was no statistically significant difference in QoL domains between both groups, but caregivers of autistic children rated their health as poor and likely to get worse (p=0.003). Mental health components were consistently poorer than the physical components in the autistic group, and female caregivers had poorer mental health than males in this cohort of participants (p<0.05).
Conclusion: This study provided evidence for the impact of caring for a child with autism on the life of the caregiver. However, there seems to be a need to develop condition-specific QoL questionnaires that can specifically measure QoL in caregivers of autistic children more accurately than generic questionnaires. The findings should still help health policy-makers provide more focused support to the children with autism and their families.
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The Prevalence of Obesity Amongst School Children and Adolescents in Qatar
Authors: Ladan Davallow, Hanin Abou Ayash, Iqbal El Assad and Amal KhidirAbstractIntroduction: There has been a great increase in the worldwide prevalence of childhood and adolescent obesity and secondary diseases such as diabetes mellitus type II in recent years. However, there is insufficient data regarding this topic in Qatar and the Gulf region.
Objective: To assess obesity prevalence among schoolchildren and adolescents (6–18 years) in independent schools in Qatar.
Methods: This cross-sectional study was conducted in independent schools selected by the Supreme Council of Education in Qatar. Participants were sampled from schools managed by the Ministry of Education in Qatar using a multi-stage random selection with clusters being school type (primary, preparatory, secondary), grade, class section and gender of students. Two questionnaires translated to Arabic (one for grade 4 and one for grade 8 and 11) were used, and weight and height were measured using a portable stadiometer. Ethical board approvals as well as parental permission and students’ assent were obtained.
Results: Data was collected from 19 schools (7 elementary, 6 middle and 6 high schools). Total of 480 children and 1,333 adolescents were enrolled. Height and weight were measured, and body mass index (BMI) was calculated using Center for Disease Control (CDC) guidelines. Overall prevalence of obesity among: a) Grade 4 was 23.3% (27.7% boys and 18.3% girls), b) Grade 8 was 22.4%, (22.2% boys and 22.9% girls), and c) Grade 11 was 17.5% (24% boys and 12.2% girls). Grade 4 and 11 boys were (1.7 and 2.6 times respectively) more likely to be obese than girls, while in grade 8 there was no statistically significant difference among genders. The rates of obesity for all grades were higher than the American rate of 16.9% for children between the ages of 2 to 19 years by National Health and Nutrition Examination Survey (NHANES).
Conclusion: There is a high prevalence of obesity amongst schoolchildren and adolescents in Qatar, boys more than girls. This pilot study highlights the need for a bigger scale study to further evaluate obesity among children and adolescents and start concrete interventions.
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Community Pharmacists in the State of Qatar: A Survey of their Smoking Cessation Knowledge and Educational Interests
Authors: Maguy Saffouh El Hajj, Reem R Al Nakeeb and Rajaa A. Al QudahAbstractBackground: Cigarette smoking is one of the preventable causes of ill health in Qatar. Qatar community pharmacists are in an ideal position to play an important role in smoking cessation. This role necessitates adequate smoking cessation knowledge and education. The study objectives were to assess Qatar community pharmacists' smoking cessation knowledge and to gauge their perceptions of which aspects of smoking-related education would be most interesting.
Methods: A pretested survey was used to solicit community pharmacists' anonymous responses. The survey was designed after reviewing relevant smoking cessation literature. A phone call was made to all community pharmacists in Qatar to request their participation. Interested pharmacists were sent the survey link by email or by fax. Data was descriptively analyzed using the Statistical Package of Social Sciences software version 18.
Results: Over 20 weeks, we collected 112 surveys (35% response rate). Smoking cessation knowledge was evaluated using 8 true or false questions. Thirty seven percent of respondents scored less than 60% and 13% scored more than 80%. The mean score was 61% with a standard deviation of 17%. Eighty-nine percent of respondents indicated that they have not received before any smoking cessation education. Nevertheless, at least 70% indicated that they were interested in receiving additional smoking cessation education. Respondents were mostly interested in receiving education on motivating smokers to quit and on counseling on behavioral techniques (89% and 86% respectively). Sixty nine percent indicated a preference for mailings of printed materials as method of information delivery.
Conclusion: Despite their low smoking cessation knowledge, Qatar community pharmacists are interested in receiving additional smoking cessation education. A smoking cessation education program should be offered to these pharmacists to give them the knowledge they need to be competent smoking cessation counselors.
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The Effect of Serum Lipoproteins on Amiodarone Metabolism in Cultured Primary Rat Hepatocytes
Authors: Dalia Hamdy and Dion BrocksAbstractPurpose: To examine the effect of serum lipoproteins on amiodarone (AM) metabolism in cultured primary rat hepatocytes.
Method: Primary rat hepatocytes were isolated from normal lipidemic (NL) or hyperlipidemic (HL) Sprague Dawley rats. All experimental groups were treated with AM (500 ng/mL) for 0–72h (n=18 wells for each time point). In preincubation groups, hepatocytes were pre-incubated for 24 h at 37°C with media or 5% NL or HL serum in media. After 24 h, the medium containing serum was removed and treatment was initiated with drug incubated with media alone. For serum co-incubation groups, the AM serum mixture was added to hepatocytes. Experiments were terminated at various time points by addition of 0.5 mL 1N NaOH to each well and samples collected in Eppendorf tubes and stored at −30°C until analyzed for the concentration of AM remaining.
Results: In absence of serum, there was no significant difference in the area under the % AM recovering time curve (ARE) between the NL and HL hepatocytes over the time period from 0–72h. However, ARE from 0–24h in HL rat hepatocytes (1630±39.3 % h) was significantly higher than that of the NL rat hepatocytes (1409±57.2 % h). The co-incubation of NL serum led to a significant increase in the ARE in the NL hepatocytes compared to the incubations in the absence of the serum. The addition of HL sera, whether it be as pre- or co-incubations, led to significant increases in the ARE compared to media only and NL serum incubations. In addition the co-incubated NL hepatocytes had significantly higher (6288% h) ARE when exposed to HL serum than the pre-incubated (4552 % h) cells.
Conclusion: Serum pre-incubation decreased the amiodarone metabolism in cultured primary hepatocytes due to down regulation of CYP enzymes. Serum co-incubation resulted in significantly lower AM metabolism than the corresponding pre-incubation groups due to a decrease in AM unbound fraction. The hypothesized enhanced association of drug with VLDL and LDL fractions in co-incubation with HL serum compared to NL serum was not sufficient to increase the uptake of the drug into hepatocytes and increase the drug metabolism significantly between those two groups.
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Mechanistic Release Study of Water Soluble Drugs from Poly (Dimethylsiloxanes) Elastomeric Matrices
Authors: Husam M Younes, Sandi Ali-Adib, Nazish Khan, Kawthar Tawengi and Dana BakdashAbstractIntroduction: Controlled drug release from implantable silicone elastomers was reported to occur mainly via the osmotic rupture release mechanism. In this work, we are attempting to determine the effects of drug volumetric loading, particle size, device shape, and dissolution media on the release rate of the water-soluble osmotically active drug, Papaverine Hydrochloride (PH) from silicon elastomers.
Materials and Methods: Medical grade silicone (Sylgard kit) was purchased from Dow Corning. All other chemicals were purchased from Sigma-Aldrich and used as received. The release profiles from devices of three geometries (cylinders, cubes and tablets), of different drug particle sizes (< 45μm, 63–125μm or 125–250μm) in different dissolution media (phosphate buffered saline, distilled water, and 3% sodium chloride solution) were investigated. The effect of degree of elastomer crosslinking and the percentage of volumetric loading of the osmotic excipient and pore forming agent, Trehalose, on the release rate were also investigated. The drug fraction released of PH was analyzed using ultraviolet spectrophotometric analysis. Data obtained was then plotted as cumulative percentage release against time and then further analyzed.
Results and Discussion: Contrary to previous reports, devices formulated with the same volumetric loading and smaller drug particles sizes released drug faster than those devices with a larger particle size. The drug release from tabular implants was of faster rate when compared to cylindrical and cubic devices. Contrary to the expected, higher drug release rate was also observed from cubic elastomeric devices with higher crosslinking density. In addition, the release profiles demonstrated that osmotic release was the predominant mechanism governing the release of PH from silicone elastomers.
Conclusion: Our results show that osmotic rupture is the predominant mechanism of release of PH from silicone elastomer. Further studies must be conducted to confirm the effect of the elastomer crosslinking density on drug release rate.
Acknowledgements: This report was made possible by a UREP award [UREP 07-120-3-027] to HM Younes from the Qatar National Research Fund (a member of The Qatar Foundation). The statements made herein are solely the responsibility of the authors.
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Newborn EEG-Based Automatic Abnormalities Diagnosis Scheme using a Time-Frequency & Image Processing Approach
Authors: Larbi Boubchir and Boualem BoashashAbstractElectroencephalogram (EEG) is a representative signal containing information of the electrical activity generated by the cerebral cortex nerve cells; it has been the most utilized signal to clinically assess brain activities, and to detect abnormalities such as epilepsy. However, the manual detection of such brain abnormalities as epilepsy or seizure includes visual scanning of EEG recordings, which is very time consuming especially in the case of long recordings. So, the EEG signal parameters are extracted and analyzed using computer based digital signal processing techniques are highly useful in diagnostics and more suitable for detecting and classifying EEG abnormalities.
This work aims to develop novel features extracted from the time-frequency distribution (TFD) of the EEG signals including newborn for the purpose of classifying these signals in three possible categories i.e.: 1) acquired from healthy subjects, or 2) epileptic patients during normal brain activity, or 3) epileptic patients while experiencing seizures.
The proposed method for classifying EEG signals includes the three following stages:
- Time-frequency decomposition of EEG signal using the quadratic time-frequency representations (TFR).
- Features extraction from TFR.
- Features classification in order to assign the signal to one abnormality class: mild, moderate or severe abnormality.
The experimental results show that the proposed method provide better results using certain types of Quadratic TFDs such as the Modified-B distribution or the Spectrogram distribution in combination with the support machine classifier to detect and classify the epilepsy. We also found that the performance of this method is not related only to the TFR and the classifier choice but is also dependent on the choice of significant features. We are currently developing new image processing techniques to extract new features from the TFR considered as an image. The design is based on the use of edge and contour detection, and, segmentation methods in order to define new features such as the number, the shape and the localization of the components.
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Design of Quadratic Time Frequency Distribution and Application to the Analysis and Detection of Fetal Movements
Authors: Taoufik Ben Jabeur and Boualem BoashashAbstractBackground: Fetal movements are clinically correlated to fetal wellbeing. Ultrasounds are the most accurate measurements of the fetal movement but expensive and intrusive. To avoid these constraints, Fetal activity is captured through data acquired using low cost and nonintrusive accelerometer . Time-frequency distributions (TFDs) are often used to represent the energy, temporal and spectral characteristics of non-stationary signals in the time and frequency plane.
Many quadratic TFDs were proposed in the literature such as Wigner-Ville distribution, Spectrogram, B-Distribution, Choi-Williams , etc. The drawbacks of the majority of these techniques is that only a few parameters can be modified in the kernel, generally the lag and Doppler parameters, so that they cannot be easily adapted to the data.
Objectives: This work aims at designing a new kernel with several parameters that leads to a higher resolution time frequency representation (TFR) of the signal, therefore improving the characteristic of the fetal movement.
Methods: The proposed TFD can be considered as an extension of the Gaussian TFD (also called Choi-Williams distribution). The kernel function of the proposed kernel is given by the sum of the weighted derivative Gaussian TFD (refer to the equation).
Results and Conclusion: The weighted parameters in the above formula can be estimated by maximizing the concentration of the instantaneous frequency. The resulting TFD is compared with other methods and applied to the analysis and classification of the fetal movement data recorded by the accelerometers. The results obtained indicate that the proposed time-frequency methodology allows the detection of fetal movement data recorded by accelerometers.
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Newborn EEG Seizure Detection Using Time-Frequency Matched Filtering
Authors: Boualem Boashash and Ghasem AzemiAbstractBackground: The analysis of Electroencephalography (EEG) signals acquired from epileptic babies shows that seizures can be modeled as piecewise linear frequency modulated (LFM) signals. This fact motivated the use of time-frequency matched filters (TFMFs) for seizure detection in newborn EEG. A TFMF is characterized by a unique test statistic, which is found based on the time-frequency (TF) correlation between the signal under analysis and a template. The test statistic is compared with a threshold to determine the presence or absence of the template in the signal under analysis.
Objectives: We present two seizure detection algorithms based on the general class of TFMFs and an improved algorithm in the ambiguity domain and evaluate their performance using real EEG signals.
Methods: The method includes the following stages:
Based on TF analysis of newborn EEG, we create a template set containing M piecewise LFM signals with L pieces and slopes.
We define test statistics based on the TF correlation between the EEG signals under analysis; we use the Wigner-Ville distribution (WVD) and other quadratic Time-Frequency Distributions.
The test statistics are compared with a predefined threshold.
Results: We evaluated the performance of the proposed method using a database of newborn EEG signals. For each method, we found the area under the receiver operator characteristic curve (AUC) as the performance criteria. All the methods detected seizure accurately with AUC more than 0.9.
Conclusions: This work shows that TFMFs can detect seizures in newborn EEG with a very high accuracy. The optimization of the parameters of the TFDs and the use of fast and memory efficient algorithms for computing TFDs can improve the performance of the methods.
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Caring for a Child with Autism; Burden and Quality of Life of the Caregivers in Qatar
Authors: Nadir Kheir, Ola Ghoneim, Amy L Sandridge, Muna Al-Ismail, Sara Hayder and Fadhila Al-RawiAbstractIntroduction: Autism spectrum disorder (ASD) affects children at around the age of 3 years old and last throughout the person's lifetime. ASD imposes great burden on the family, and forces family members to considerably modify their daily lives to suit their reality with autistic child(ren). To our knowledge, no previous research assessed the burden of ASD on the lives of parents/caregivers of autistic children in Qatar or the Gulf region.
Methods: Caregivers of a child with autism between 3–17 years were recruited from children rehabilitation clinics. The control group was represented by caregivers of a typically-growing child visiting a primary health care facility for a routine medical examination. Data collected from both groups included demographic information of caregivers and children and quality of life information. The Lebanese Arabic version of the Short Form-36 (SF-36) was used to assess quality of life.
Results: Children in the AG spent more time indoors, watching TV, or sleeping than children in the control group (p←0.05). Around 40% of caregivers in the AG said they would encourage their child to get married and become parent when s/he grows up. Half of the sample in the AG utilizes special education classes and other facilities, and the remaining half has access problems. There was no statistically significant difference between quality of life domains between the two groups of caregivers, but caregivers of autistic children rated their health as poor and likely to get worse (p=0.003). However, mental health components were consistently poorer in the AG compared to the physical components, and female caregivers also had poorer mental health than males in this cohort of participants (p<0.05).
Conclusion: This study provided evidence for the impact of caring for a child with autism on the life of the caregiver. The findings should help health policy-makers provide more focused support to the children with autism and their families.
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Medications in Qatar's Homes: What are They and Where Are They?
Authors: Nadir Kheir, Maguy El Hajj, Karry Wilbur, Rihab Kaissi and Adil YousifAbstractBackground: Drug therapy is the most used intervention for the treatment and prevention of diseases. However, if used inappropriately, drugs can cause more harm than good. Improper drug storage and disposal can have direct impact on public safety, the environment, and healthcare services. No previous studies have examined how medications are stored, used or disposed-off in Qatari homes.
Objectives: To explore how medications are stored in Qatari homes, and to identify how unwanted medications are disposed of.
Methods: This was cross-sectional, descriptive, and epidemiological study. A list of randomly selected telephone numbers was generated from Qatar's telephone directory. Individuals answering calls were provided with the study objectives, and asked if they wished to participate. Those who offered verbal consent were interviewed in Arabic or English using a multi-part pre-tested survey instrument. The survey contained questions related to the participants’ socio-demographic characteristics as well as to the stored medications at home.
Results: Data were collected from a total of 49 households. The sample contained an ethnic mix of whom 28% stored medications in their bedroom, and 13% in a fridge. Most respondents disposed of unwanted medicines by throwing in the trash. The majority of respondents sought information related to drugs from doctors. Only 6% identified pharmacists as their primary source of information related to drugs. There seems to be poor or no correlation between household income and number of drugs stored or the method of disposal of medicines.
Discussion and Conclusions: The results raise concerns about how medications are stored and disposed-off in the community. The fact that no household routinely returned unwanted medications to a pharmacy for proper disposal places the environment at risk. There is need for societal awareness on the safe handling and storage of drugs in homes, and pharmacist should do more to raise awareness about their expected professional role.
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Failure and Injury Locus of Anterior Cruciate Ligament: A Finite Element Study
Authors: Abdel Magid Hamouda, Alexander D Orsi, Ashkan Vaziri and Hamid Nayeb-HashemiAbstractBackground: Anterior cruciate ligament (ACL) tears are common injuries occurring upwards of 250,000 times annually only in the U.S. These injuries create an annual billion dollar expense. It is important to understand these injury mechanisms as these injuries continue to be one of the largest problems in orthopedic sports medicine. Improved understanding of the injury mechanisms may improve prevention, rehabilitation and surgical procedures.
Objective: This study used a 3-Dimensional finite element (FE) knee joint model to investigate the combinations of movement, which cause ACL injury.
Method: Digital bone structures were created from magnetic resonance images (MRI). Ligament bundles were modeled based on the origins and insertion sites determined from MRI. Bone was modeled as rigid, and a transversely isotropic Mooney-Rivlin material was applied to the ligament structures. This study incorporates a novel approach for developing bundle specific prestrain within 3-D ligament structures. The bundles were stretched from their zero load lengths to their reference lengths, producing a strain field mimicking the in vivo strain conditions of the ACL at full knee extension. A failure locus was created by performing multiple FE simulations of knee joint motion combinations until ACL failure.
Result: The relationship between knee joint orientation and ligament rupture was plotted providing a spectrum for the propensity of ACL injury based on knee joint orientations, known as a failure locus. The locus shows which combinations of internal/external femoral rotation and varus/valgus angle cause ACL failure. The results show the posterolateral bundle more susceptible to rupture than the anteromedial bundle in 17 of the 22 simulations. The results also show 45% less varus angle needed for ligament failure relative to valgus angle. The results highlight femoral external rotation as an important factor for ACL injury as it decreases the failure angle by an average of 23% compared to femoral internal rotation.
Conclusion: These results have various clinical applications. In sports where ACL injuries are prevalent, training programs can be adapted to address the avoidance of harmful knee orientations.
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HIV Molecular Epidemiology in the Middle East and North Africa: Understanding the Virus Transmission Patterns
Authors: Ghina Mumtaz and Laith Abu-RaddadAbstractBackground: Human Immunodeficiency Virus Type I (HIV-1) is characterized by a high genetic variability. The distribution of HIV-1 subtypes in a population can help track transmission patterns and the evolution of the epidemic. The Middle East and North Africa (MENA) continues to be perceived as a region with limited HIV epidemiological data, but recent research indicates that nascent HIV epidemics appear to be emerging among high-risk groups including injecting drug users (IDUs), men who have sex with men, and female sex workers.
Objective: To review all evidence on HIV-1 subtype distribution in MENA where there remain several gaps in the understanding of the HIV epidemic.
Methods: A comprehensive systematic review of all HIV-1 molecular epidemiology data in MENA was undertaken. Sources of data included 1) PubMed, 2) country-level reports and database including governmental and non-governmental organizations publications, and 3) international organizations reports and databases.
Results: In several countries such as Lebanon, Saudi Arabia, and Yemen, a very diverse distribution of HIV-1 subtypes was observed reflecting principally travel-related exogenous exposures. A trend of a dominant HIV-1 subtype was observed in few other settings and was often linked to HIV transmission within specific high-risk core groups such as subtype A and CRF35_AD among IDUs in Afghanistan, Iran, and Pakistan; and subtype C in heterosexual commercial sex networks in Djibouti and Somalia. Subtype B was predominant in Northern Algeria, Tunisia, and Morocco, but this appeared to reflect a mix of indigenous endemic transmission and exogenous exposures of West European and North American origin.
Conclusions: Multiple introductions of HIV-1 variants due to exogenous exposures of nationals seemed common to all MENA countries, as observed from the high diversity in subtypes or the high genetic divergence among any specific subtype even if predominant. This in part reflects the high population mobility in MENA. In several countries though, epidemic-type clustering of specific subtypes suggests established or nascent HIV epidemics among classic core risk groups for HIV infection. With overall weak surveillance systems in MENA, molecular investigations could help identify the emergence of hidden epidemics among high-risk groups. HIV prevention efforts must be prioritized for these groups.
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Biophysical Properties of Xenopus TRPV6 Channel and its Regulation by TRPC1
Authors: Raphael Courjaret, Arwa Daalis, Satanay Hubrack, Shirley Haun and Khaled MachacaAbstractTransient Receptor Potential (TRP) ion channels are formed by either homomeric or heteromeric assembly of four TRP subunits that have six transmembrane domains (TM) and a P-loop located between TM5 and TM6 defining the channel pore. So far 30 different subunits classified in 6 families sharing as low as 20% homology, have been identified in mammals and about 20 in Xenopus. Although heterotetramers can be formed within a family, the assembly of subunits from members of different families was thought to be unlikely. We here propose that TRPV6 and TRPC1 subunits can co-assemble in the Xenopus oocyte. Western blots performed on naive oocytes lysates revealed that they express both TRPV6 and TRPC1 proteins. Furthermore, co-immunoprecipitation of tagged xTRPV6 and xTRPC1 proteins expressed in oocytes suggested a heteromeric assembly. In mammals, TRPV6 is mainly expressed in intestinal epithelia and in the placenta where it forms a homomeric channel with high calcium permeability whereas TRPC1 is a ubiquitous protein forming cationic channels with an unclear gating mechanism.
In oocytes, over expression of xTRPC1, as previously reported, did not induce any resting ionic current. Conversely, oocytes overexpressing xTRPV6 alone did show an inward rectifying cationic current that could be blocked by La3+ ions and Ruthenium red. As described for mammals, the xTRPV6 channel was largely permeable to calcium ions and displayed an anomalous mole fraction effect. A striking distinction with its mammalian counterpart is the high permeability of the xTRPV6 channel to Mg2+ over other divalents (Mg2+>Sr2+>Ba2+>Ca2+), the Mg2+/Ca2+ ratio being 2.08.
This high permeability to Mg2+ could be abolished by a point mutation in the P-loop (D525N) lowering the ratio to 1.18. Co-expression of xTRPC1 and xTRPV6 lead to a very strong reduction in the current amplitude and in cationic selectivity, the Mg2+/Ca2+ ratio also dropping to 1.18. Further investigations using heterologously expressed xTRPV6 and xTRPC1 in HEK293, allowing whole-cell recordings, will help us clarify the selectivity and the regulation of the channel. The potential interaction between TRPV6 and TRPC1 in mammals will also be examined using tissue extracts and selected cell lines.
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Pharmacy Students' Attitudes Toward Pharmaceutical Care in Qatar
Authors: Maguy Saffouh El Hajj, Ayat Hammad and Hebataila M. AfifiAbstractBackground: Pharmacy practice has recently shifted from medication supply to pharmaceutical care (PC). Pharmacy educators must prepare students to provide PC. Their responsibilities are not only limited to give students knowledge and communication skills but to motivate them to perform PC. The study objectives were to investigate Qatar pharmacy students' attitudes toward PC, to identify the factors that influence their attitudes toward PC, and to recognize their perceived barriers for PC provision.
Method: Qatar University college of pharmacy is the only pharmacy college in Qatar. A cross sectional survey of Qatar University pharmacy students was made. The students completed an online anonymous survey designed based on Standard Pharmaceutical Care Attitudes Survey (PCAS).Data was descriptively analyzed using Statistical Package for the Social Sciences version 18. Influence of sociodemographic characteristics on students' attitudes was assessed using Kendall's tau_b test.
Result: Over 4 weeks, 46 surveys were submitted (90% response rate). All respondents agreed that PC practice is valuable and that the pharmacist primary responsibility is to prevent and resolve medication therapy problems. Most respondents believed that PC provision is professionally rewarding (96% of respondents), and that all pharmacists should provide PC (91%). Highly perceived barriers for PC provision included lack of access to patient medical information (76% of respondents), inadequate drug information sources in the pharmacy (55%) and time constraints (53%). Professional year and practical experience duration were significantly inversely associated with students attitudes (correlation coefficients are −0.30 and −0.37 respectively p <0.05). No statistically significant correlations existed between other characteristics and students attitudes.
Conclusion: Qatar pharmacy students indicated positive attitudes toward PC. However, they perceived several barriers for PC provision. Efforts should be exerted by Qatar's government to help these future pharmacists in overcoming these barriers.
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Calcium Waves in the Xenopus Oocytes Trigger Store Operated Calcium Entry
Authors: Raphael Courjaret and Khaled MachacaAbstractThe oscillation of cytoplasmic calcium concentration exists in a large number of non-excitable cells such as astrocytes in the brain, intestinal cells and oocytes (Fig.1). This rhythmic activity carries information into the cell, regulating various processes such as gene expression or transmitter release. In some cells, such as Xenopus oocytes, the oscillations can rely only on calcium being released in the cytoplasm from intracellular stores after stimulation of inositol triphosphate (IP3) receptors located on the endoplasmic reticulum (ER). To refill the intracellular stores in the ER, the cell has to import extracellular calcium. This is achieved through the STIM/Orai pathway where an ER calcium sensor (STIM) is activated by store depletion and in turn interacts and opens a calcium channel in the plasma membrane (Orai) leading to calcium influx, a process known as Store Operated Calcium Entry (SOCE). In the present work we evaluated the interactions between SOC and intracellular calcium oscillations in Xenopus oocytes. Intracellular calcium levels were monitored using the amplitude of the endogenous calcium-activated chloride currents. Following injection into the cells of a non-hydrolysable analog of IP3 (IP3-DF), long lasting calcium oscillations could be triggered as well as SOCE ( Fig. 1 ). The calcium oscillations were more efficient in promoting SOC than store depletion by ionomycin (2.34 ± 0.55 nA, n=13 vs 0.05 ± 0.02 nA, n=8), the mechanisms involved are currently under study. We also observed that activation of SOC could trigger a calcium wave in a dose-dependent manner following a “Calcium Induced Calcium Release” pattern. This suggests that SOC might not only be involved in replenishing the calcium stores but also in the regulation of the amplitude and timing of calcium oscillations. The well known down-regulation of SOC during oocyte maturation should therefore have important functional consequences on intracellular calcium oscillations.
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RNA-Seq Reveals Novel Mutation Selection and Gene Expression Changes in Ovarian Cancer Metastasis
AbstractThe mutation landscape of cancer is known to evolve as different metastasis develop. As the cancer spreads, certain mutations are selected for and gene expression changes are needed to adapt to the new environment. We have begun to document the changes that occur as cancer metastasizes using Next- Generation Sequencing of mRNA from Ovarian primary tumor and its peritoneal and lymph node metastases. We used data generated using deep-sequencing to evaluate the clonal relationships among primary and metastatic cancers to uncover the natural history of ovarian cancer progression. Using this approach, we have documented numerous Single Nucleotide Polymorphisms (SNP) changes including changes in SNP frequency as the cancer spreads. In combination with gene expression changes these will serve as a powerful tool to begin understanding the continual evolution of cancer in response to new environments.
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Investigation of the Role of Notch Signalling in the Microenvironment-Mediated Tumorigensis of Breast Cancer
Authors: Pejah Ghiabi and Jeremy Arash Rafii TabriziAbstractRecently, a speculative model is proposed that tumor tissue is continuously regenerated by a small population of self-renewing cancer stem cells responsible for initiation, growth and propagation of tumor. Tumor cells reside in a “niche” and have constant interaction with the niche components including tumor vasculature, bone marrow mesenchymal stem cells (BM-MSCs) and the components of the extracellular matrix. It is believed that the growth advantage acquired by tumor cells as well as the ability of cancer stem cells (CSCs) to maintain tumor propagation is partly the outcome of this interaction.
Our study intends to better characterize this crosstalk by looking into the possibility of BM-MSC/endothelial cell-mediated activation of Notch pathway in breast cancer cells through production of certain cytokines aiming at proposing novel therapeutic approaches for targeting this disease.
The CSCs were enriched by culturing breast cancer cells (BCC) in 3D media to obtain multicellular spheres for further analysis. BM-MSC and Akt-activated endothelial cells were co-cultured with BCC and spheres to assess their capability in promoting cancer cell growth. RNA interference approach was applied to Notch3 to determine its role in BCC survival by the niche players. A human cytokine array was used to identify the cytokines that showed different expression patterns in the BCC co-cultures with the niche residents.
BM-MSC or Akt-activated Endothelium was able to increase BCC growth up to 4- and 5-fold, respectively, in contact and under serum-free condition. Blocking Notch3 in BCC or spheres by siRNA or inhibition of notch pathway by GSI reduced the proliferation rate of both entities to 2.5-fold, which might underline the role of notch in the interaction between tumor cells and the niche components. Also, several cytokines were identified that were differentially regulated in co-cultures system among which IL6, IL8, and GROa showed significant up-regulation.
Our preliminary data suggest the role of BM-MSC and endothelial cells in breast cancer growth and survival. Our results propose the idea of notch involvement in this interaction through stimulation by certain cytokines. Further investigation is required to elucidate the exact mechanism that is triggered by these cytokines in tumor propagation and maintenance.
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Interference of Zinc Chelation with Cancer Cell Proliferation
Authors: Ghizlane Bendriss and Khaled MachacaAbstractCell division is a complex process tightly regulated by several classes of genes. Cancers occur primarily due to misregulation of this machinery, resulting in uncontrolled growth of cells. We recently showed that the transition metal chelator, TPEN, blocks entry into meiosis of Xenopus oocytes and targets a protein involved in cell cycle: Cdc25c. Cdc25c is a dual specificity phosphatase that plays crucial roles in cell cycle progression particularly during the G2-M transition of the cell cycle. Analysis of recombinant Cdc25c metal content revealed that Cdc25c is a Zn2+-binding metalloprotein (Lu Sun et al., 2005).
Based on these findings we hypothesize that Zn2+ is an important cofactor for Cdc25c to adopt the right conformation to recognize and interact with its substrate Cdc2. To test this hypothesis, we used Arabidopsis Cdc25c because the Zn coordinating residues have been identified in this protein. This analysis identified the following residues as potential Zn-coordinating residues: H420, C507, C513, H516, and H517. To test whether these residues coordinate Zn we have mutated them to Ala and are presently purifying the mutant and wild-type proteins as recombinant proteins to test their phosphatase activity and ability to induce entry into M-phase following microinjection into oocytes.
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Patterns of HIV Infection Among Spousal and Cohabiting Sexual Partnerships in Sub-Saharan Africa
Authors: Hiam Chemaitelly and Laith J. Abu-RaddadAbstractBackground: The reasons behind the differences in the levels of discordancy (that is one partner testing HIV positive while the other testing HIV negative) among spousal and cohabiting partnerships affected by HIV across sub-Saharan Africa (SSA) remain inadequately understood. Recently, many randomized clinical trials have shown substantial efficacies for several prevention interventions among these partnerships.
Moreover, there has been an intense debate about the priority of HIV prevention interventions among discordant couples relative to other prevention approaches such as among commercial sex networks.
Objective: To describe and explain patterns of HIV infection among spousal and cohabiting sexual partnerships, across a range of settings in SSA.
Methods: Demographic health survey (DHS) data for 20 countries in SSA were used to estimate the prevalence of HIV sero-discordancy among stable partnerships with at least one HIV-infected individual in the partnership (P), prevalence of discordancy among all stable partnerships in the population (S), prevalence of discordancy among the entire sexually active population (A), and prevalence of discordancy among HIV infected individuals (I).
Results: Two distinct patterns of HIV among stable partnerships were observed. Countries with low HIV prevalence had a high discordancy prevalence among P and I ranging from 48.4–87.8% and 30.6–60.0%, respectively, but low discordancy prevalence among S and A ranging from 0.4–6.4% and 0.2–3.8%, respectively. Conversely, countries at hyper-endemic HIV epidemics had a low discordancy prevalence among P and I ranging from 36.3–58.5% and 17.2–46.0%, respectively, but high discordancy prevalence among S and A ranging from 9.3–17.2% and 5.8–8.3%, respectively.
Conclusions: Two distinct patterns of HIV in stable partnerships were observed. In high prevalence settings, many partnerships were affected by HIV but relatively few were discordant, whilst the opposite was true for low prevalence settings. This pattern may be arising from variations in the HIV transmission probability which is dependent on biological and behavioral factors and might also be affected by the frequency of infection from external partners especially in high prevalence countries. These findings may complicate considerations for rolling out prevention interventions among stable discordant partnerships in SSA.
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Trafficking and Regulation of Orai1 in Mammalian Cells
Authors: Abdelilah Arredouani, Timothy E McGraw and Khaled MachacaAbstractStore-operated Ca2+ entry (SOCE) is activated by endoplasmic reticulum Ca2+ store depletion and is a major Ca2+ influx pathway in non-excitable cells. It is widely accepted that Orai1 protein in the plasma membrane (PM) is the channel that mediates SOCE in many cell types. Orai1 is activated when STIM1, an ER transmembrane protein, senses a decrease in the ER Ca2+ concentration and redistributes to ER-PM junctions, where it recruits Orai1 in coincident puncta. We have recently shown that at rest Orai1 actively recycles between an endosomal compartment and the cell membrane in Xenopus laevis oocytes and that ER Ca2+ store depletion translocates most of the Orai1 to the PM. We have also shown that during oocyte maturation Orai1 is internalized resulting in the absence of SOCE in the Xenopus egg. In mammalian cells, mitosis is the only know physiological situation where SOCE is inhibited but the underlying mechanism is not fully understood. In this study we investigated the trafficking of Orai1 in CHO cells that express a tagged Orai1. We also looked at the distribution of Orai1 during mitosis. We show that at steady state about 40% of the total Orai1 pool is at the PM whilst the remaining 60% localizes intracellulary, suggesting that Orai1 constitutively recycles between the two compartments. After the depletion of the ER Ca2+ stores the distribution of Orai1 shifts drastically with now most of the protein localized at the PM. Moreover, we show that the rate of Orai1 exocytosis is 3 fold faster after the depletion of the ER Ca2+ stores. During mitosis the total expression of Orai1 is reduced and the fraction of plasma membrane Orai1 tend to be less than in interphase cells. A fraction of the mitotic cells show no Orai1 expression at all. Interestingly, the reduction of Orai1 expression is reversed by inhibiting the proteosome complex, suggesting that Orai1 is degraded during mitosis.
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Estimating HIV Incidence Rate among Stable Sexual Partnerships in Sub-Saharan Africa
Authors: Laith Abu-Raddad and Hiam ChemaitellyAbstractBackground: Empirical evidence suggests that HIV incidence rate within stable discordant sexual partnerships in sub-Saharan Africa (SSA) varies between 1.2 and 19.0 per 100 person-years. Estimating HIV incidence rate within stable discordant partnerships is critical for determining the contribution of HIV sero-conversions among these partnerships to total HIV incidence.
Objective: To estimate HIV incidence rate within stable discordant partnerships using nationally representative data and explore potential underlying factors contributing to their variability across a range of epidemic settings in SSA.
Methods: We constructed a mathematical model based on competing-hazards formalism to estimate HIV incidence rate within stable discordant partnerships across 20 countries in SSA. We also used the model to analyze the patterns of HIV discordancy in SSA. The model was parameterized using Demographic Health Survey data and analyses were conducted at endemic equilibrium. Sensitivity analyses were performed to explore the dependence on the dynamical drivers of discordancy.
Results: Our model fitted well the empirical epidemiological measures of HIV discordancy and yielded an estimate for HIV incidence rate among discordant partnerships of 14.7 per 100 person-years (95% CI 9.9–19.4 per 100 person-years). HIV incidence rate ranged between 3.9 and 34.9 per 100 person-years across the countries. We also identified HIV incidence rate within stable discordant partnerships and HIV incidence rate from sources external to the partnership (or equivalently HIV prevalence) as key determinants of the variability in discordancy measures across SSA.
Conclusions: Our estimate for the HIV incidence rate among discordant partnerships agrees well with empirical estimates for this measure. There is however considerable variability across the countries. Biological and behavioral factors including differences in transmission rates such as due to male circumcision, may have contributed to the variability in HIV incidence rates among discordant partnerships across SSA. More research is needed to elucidate the determinants of this variability in incidence rates.
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SIRT1 Regulates Hyperglycemia-Induced Vascular Senescence
AbstractBackground: Vascular senescence reflects the limited ability of vascular cells to divide and proliferate and is accompanied by specific phenotypic changes in morphology, gene expression and function. In endothelial cells, these changes result in a phenotype that is pro-inflammatory, pro-atherosclerotic, and prothrombotic. Hyperglycemia-mediated oxidative stress elicits irreversible growth arrest in endothelial cells, which is referred as “stress-induced premature senescence”. Endothelial cell senescence has recently been postulated as an important cause of type-2 diabetes-associated vascular aging. High glucose-induced endothelial senescence exaggerates vascular inflammation and thrombosis in the vessels, promoting the development of diabetic-associated cardiovascular events. Sirtuin 1 (SIRT1) is highly expressed in vasculature and distinctively controls angiogenic signaling in endothelial cells. Recently, SIRT1 has been identified as an important regulator of endothelial cell senescence-like growth arrest and dysfunction. However, the mechanism underlying the high glucose induced endothelial cell senescence leading to vascular dysfunction is not fully understood.
Methods: Mouse microvessel endothelial cells were exposed to normal (11mM) and high glucose (40mM) for 72 hrs. The level of SIRT1, p21 and phospho-acetylated status of Foxo1 were measured by immunoblotting. To measure senescence, cells were fixed and stained for senescence-associated B-galactosidase activity. The percentage of B-galactosidase positively stained (blue color) cells was counted.
Results: Immunoblot analysis reveals that high glucose exposure caused a significant reduction of SIRT1 level along with altered phospho-acetylation levels of Foxo1 proteins. Furthermore, high glucose treatment increased the percentage of senescence-associated B-galactosidase activity in endothelial cells.
Conclusion: Collectively, these data suggest that high glucose induced depletion of SIRT1 plays a crucial role in diabetes-associated endothelial cell senescence and strengthens concept that activation of SIRT1 is an important target for pharmaco-therapy for diabetes-associated endothelial dysfunction and vascular aging. This abstract is part of project funded by: NPRP: 08-165-3-054
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The Prevalence of Hepatitis C Virus in Egypt: A Systematic Review
Authors: Yousra Ali Mohamoud and Laith J. Abu-RaddadAbstractBackground: Hepatitis C virus (HCV) currently infects around 2% of the world's population. Among all nations, HCV prevalence ranges from 0.01% in Scandinavia to 3% in North Africa, with one exception: Egypt. Egypt has the highest prevalence of HCV in the world, estimated nationally at 14.7%. Numerous HCV prevalence studies have published various estimates from different Egyptian communities, suggesting that Egypt, relative to the other nations of the world, might be experiencing an intense ongoing HCV transmission.
Objectives: To review all the evidence on the epidemiology of HCV transmission among different population groups in Egypt.
Methods: This was a systematic review following the PRISMA guidelines of all prevalence data on HCV infection in Egypt. Sources of data included PubMed, international organizations' reports and databases, and country-level reports and databases. Measures were classified into different population categories according to risk of infection.
Results: Seventy-four studies have measured HCV prevalence in Egypt in populations at varying levels of risk. Among Egypt's general population, HCV prevalence in pregnant women was 8.6%, and among blood donors it ranged between 9.0% and 23.2%. A nationally representative survey reported a prevalence of 14.7%. Among populations at high risk of infection, HCV prevalence was found to be as high as 58.3% in multi-transfused children, and 87.5% in adult dialysis patients. Among populations at intermediate risk, diabetic children had a prevalence of 3.1%, barbers a prevalence of 12.3%, health care workers a prevalence of 15.7%, and prisoners a prevalence of 31.4%. Common risk factors appear to be parenteral anti-schistosomal therapy, frequent transfusions, injections or surgical procedures.
Conclusion: Egypt has experienced, and possibly continues to experience, a large HCV epidemic. Prevention measures need to be implemented targeting HCV transmission routes such as better infection control practices in health and dental care facilities, hemodialysis centers, and reducing the excessive numbers of non-therapeutic injections.
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miRNA Mediated Regulation of hOrai1 Expression
Authors: Rashmi Kulkarni, Nadine Abu-Kaoud and Khaled MachacaAbstractOrai1, a Calcium channel functions with STIM1, a Calcium sensor to mediate Calcium influx. Orai1 is at the plasma membrane and STIM1 localizes in a diffuse manner to the ER membrane under resting conditions. Following Ca++ store depletion, STIM1 forms puncta that localize to the cortical ER and binds Orai1 to allow Ca++ influx. This is the predominant pathway for Ca++ influx in non-excitable cells and is referred to as Store-Operated Calcium Entry (SOCE). Mutations in STIM1 and Orai1 cause severe combined immunodeficiencies and are linked to several forms of cancers. Tight regulation of the levels of members of Ca++ signaling pathways is crucial for maintaining the subcellular levels of Ca++ required for its numerous functions.
We are interested in the mechanisms that regulate some of the key players of the SOCE pathway. We have developed a system that allows us to test whether these genes are regulated by miRNAs in different cell types at different stages of the cell cycle. We are using normal human cell lines vs. human cancer cell lines to elucidate different mechanisms of regulation of these genes.
We used a GFP and the 3'UTR of hOrai1 as a transcriptional fusion to transfect HEK 293 cells and GFP without any 3'UTR as a control. As an internal control of transfection efficiency we expressed mCherry from the same vector in both conditions. We found the stoichiometry of GFP and mCherry levels in the experimental conditions for hOrai1 3' UTR to be significantly different from those in the control indicating a miRNA-mediated regulation of hOrai. We also found the ratio between GFP and mCherry to be constant throughout the cell cycle in the control and variable in the GFP hOrai1 3'UTR transfected cells suggesting a cell-cycle dependent regulation of hOrai1. We are taking a similar approach to determine whether hSTIM1 is regulated by miRNAs.
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Design of Steering Mechanism for Automated Cystoscopy
Authors: Xianming Ye, Carlos Velasquez and W. Jong YoonAbstractUrinary bladder cancer is one of the most common cancers worldwide and has a high recurrence rate. It has the highest lifetime cost of care per patient due to long follow-up cystoscopic surveillance after surgery to detect the high risk of recurrence.
This research develops a portable custom cystoscopic procedure to improve the efficiency and accuracy of the bladder cancer surveillance. The system uses a segmented bending mechanism that is inserted into the bladder via the urethra to steer a flexible imaging probe to provide a comprehensive diagnostic tool for review by an urologist as illustrated in Fig. 1. The position and orientation of the camera locating at the tip of the probe can be automatically controlled remotely to scan the entire bladder surface.
The structure of the bending segment is shown in Fig. 2. The segment bending is tendon driven. Four distributed small wires are connected to the segment body via guiding rings. The wires to control the distal segments are also guided through the mechanism via the rings of proximal segments. The bending angle and bending direction of a segment can be controlled by pulling and releasing its four wires accordingly. The design of the mechanism and the forward/inverse kinematics simulation were finished. A mockup model is under construction to verify the proposed design.
Images abstracted from the video are used to reconstruct a 3D panorama of the whole bladder surface. Our 3D and image mosaicking software is under developed by our collaborator at University of Washington, USA.
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Intra and Extra Cellular Loops of hENT1 are Dispensable for the Transport of Adenosine and Uridine
Authors: Jaya Aseervatham, Lucky Tran, Liu Chen, Khaled Machaca and Olga BoudkerAbstractBackground: Nucleoside transporters play an important role in regulating the extracellular concentration of Adenosine and salvaging nucleosides. They also play an essential role in the transport of anticancer and antiviral drugs. Nucleoside transporters have been classified into families known as Equiliberative (ENT) and Concentrative (CNT).
Objective:ENTs belong to the SLC 29 transmembrane protein family, with 11 transmembrane domains with intracellular N- terminus and extracellular C terminus. In order to localize to the plasma membrane they must undergo correct processing, targeting and trafficking. Constructs were designed where the intracellular and extracellular loops were deleted and used to test the efficiency of Adenosine and Uridine transport in Xenopus laevis oocytes using radiolabelled substrates.
Methods: Stage VI Xenopus oocytes were injected with 23ng hENT1 RNA, and incubated for 48 hrs at 18 degrees. 5 uM 14C-labeled Adenosine and Uridine were added to the tube containing 5 oocytes, and incubated for 1-60 min at different time intervals. Concentration dependent study was carried out at different concentrations of Uridine ranging from 100uM - 4mM. The oocytes were washed 6 times in transport buffer and lysed with 1% sodium dodecyl sulfate and counted in a Liquid scintillation counter.
Results and conclusion: Confocal images confirmed the ENT1 protein localization to the plasma membrane. The results of the time-dependent study showed that the deletions were able to transport Adenosine and Uridine, while the concentration dependent study showed no major variation in the Km for the substrates, confirming that the extra and intracellular loops in hENT1 are not essential for the transport of neither Adenosine nor Uridine.
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Role of Inositol 1,4,5-Triphosphate Receptors in Hypertension
AbstractBackground: Chronic hypertension is a deadly disease that affects nearly 30–36% of the adult population in Qatar and the regional. Inositol 1,4,5-triphosphate receptors (IP3R) are intracellular calcium (Ca2+) channels that mediate the release of Ca2+ from sarcoplasmic reticulum in response to IP3 binding. A rise in cytoplasmic Ca2+ mediated by voltage-dependent L-type Ca2+ (CaL) channels and IP3-dependent Ca2+ release can enhance vascular smooth muscle cells (VSMC) contractility and determine peripheral vascular resistance.
Objective: The goal of this study is to elucidate the role of IP3R in hypertension.
Methods: Two rat models of hypertension and the A7r5 rat embryonic aortic cells are used in this project. Proteins for western blot were isolated from small mesenteric arteries (SMA) from hypertensive rats and A7r5 cells. Contraction measurements were performed in isolated arterial rings mounted for tension-recording assays. Contraction was induced with KCl and the phospholipase C (PLC) activator m-3M3FBS. The modulation of the vasoconstrictor responsiveness of SMA by IP3R and nitric oxide (NO) was depicted in a pressurized SMA incubated in the presence or absence of 2-APB (IP3R blocker) and L-NAME (NO synthase inhibitor). A7r5 basal Ca2+ levels were assessed using a fluorescence Ca2+ imaging system.
Results: Our preliminary results show that IP3R is up regulated in SMA from two different hypertensive rat models and following membrane depolarization in A7r5 cells. This up regulation is associated with an enhanced myogenic tone in response to activation of the PLC-IP3 pathway in SMA and with an increased basal Ca2+ levels in A7r5 cells. In contrast, pharmacological inhibition of IP3R alters the vasoconstriction response of pressurized vessels. Furthermore, IP3R upregulation and basal Ca2+ increase are lost in A7r5 cells treated with Nifedipine (CaL channels blocker) and drugs that block the Calcineurin-NFAT pathway before depolarization with KCl.
Conclusions: These findings improve our basic understanding of the etiology of hypertension by defining the abnormalities of IP3-dependent Ca2+ signaling in VSMC. This may provide novel insights into the pathogenesis of hypertension and set the groundwork for developing novel therapeutic targets for the treatment of hypertension.
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Role of Oxidative Stress in Hyperglycemia Induced Endoplasmic Reticulum Stress Associated Vascular Dysfunction
AbstractBackground: The higher incidence of cardiovascular complications and the unfavorable prognosis among diabetic individuals who develop such complications has been correlated to the hyperglycemia induced oxidative stress (OS) and associated endothelial dysfunction (ED). Additionally, the Endoplasmic Reticulum (ER) stress response, otherwise known as the Unfolded Protein Response (UPR), has been implicated in hyperglycemia associated ED. However, the role of OS in hyperglycemia induced ER stress associated ED remains unclear.
Objective: The present study evaluated the role of OS in hyperglycemia induced ER stress associated ED and whether antioxidant treatment could aid in the reversal the adverse effects hyperglycemia induced ER stress and ED.
Methods: Endothelial cells (ECs) were exposed to normal (NG) and high glucose (HG) for 24 and 48hrs in the presence and absence of the anti-oxidant N-acetyl cysteine (NAC). The level of oxidative stress in the cells was analyzed by DCFDA fluorescence staining levels of ER stress proteins GRP78, PERK and IRE1 were analyzed by immunoblotting.
Results: DCFDA staining indicated that OS significantly increased in HG exposed ECs while this effect was reversed upon in NAC treated endothelial cells. ER stress was significantly increased in HG treated cells as indicated by the changes in the level of ER stress proteins.
Conclusion: The data suggests that hyperglycemia induced OS plays a major role in ER stress and associated ED. Amelioration of OS by suitable antioxidant treatment may be used as therapeutic target for the treatment of diabetes associated cardiovascular diseases. However, more studies are warranted on the choice and dosage the of anti-oxidant, time of administration and supplementation of the anti-oxidant, duration of therapy and choice of treatment subjects to further evaluate the efficacy of anti-oxidant therapy in the treatment of cardiovascular conditions associated with diabetes.
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Variegated Gene Activation and Stochastic Odorant Receptor Choice
More LessAbstractEach olfactory sensory neuron in the mammalian nose selects just a single member of the large odorant receptor (OR) gene family. The core processes regulating OR selection may involve mechanisms that limit initial OR transcription and once a single OR is chosen, repress subsequent activations. We have used a genetic strategy to monitor the transcriptional permissiveness of the OR gene P2 by inserting an exogenous promoter, the tetracycline-dependent transactivator responsive promoter (teto), into its start site through homologous recombination. We observe that the OR locus limits the expression of the teto: repressing it outside of the wild type P2 zone while allowing sporadic activation from within its zone. Staged conditional expression experiments reveal that the receptor locus becomes fully repressed over time and that this repression does not require the receptor's open reading frame. Further, the exogenous promoter is inhibited by an OR transgene that similarly suppresses the endogenous receptor repertoire. Neurons in which both P2 alleles bear the teto-modified insertion show predominantly monoallelic expression, despite the genetic potential to express both. Finally, we observe that OR genes are expressed from the edge of pericentromeric heterochromatin. These data support a model of initiation of OR choice limited by non-permissive OR chromatin and maintained by repression of the non-selected OR genes.
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Biogenesis of the Store Operated Ca 2+ Channel, Orai1
Authors: Nasrin Mesaeli, Abdelilah Arredouani, Hamid Massaeli, Mashael Al Shafai and Khaled MachacaAbstractBackground: Ca2+ plays an essential role as a second messenger regulating many cellular functions including gene regulation and enzyme activity. Thus intracellular Ca2+ concentration is tightly regulated. Store operated Ca2+ channel (SOC) is a plasma membrane channel, which is activated upon depletion of endoplasmic reticulum (ER) Ca2+. This channel is compromised of two proteins STIM1, that is localized to the ER membrane and senses luminal Ca2+ concentration, and Orai1, that forms the channel at the plasma membrane. To date little is known about the synthesis and maturation of Orai1 protein. Calreticulin and calnexin are two lectin-like chaperones in the ER, which are involved in the synthesis and maturation of many membrane and secretory proteins. In addition to its chaperone function, calreticulin binds Ca2+ with high capacity and low affinity and regulates intracellular Ca2+ homeostasis. Previously, we showed that loss of calreticulin function activates ER stress pathways leading to the activation of the ubiquitin-proteasome pathway.
Objectives: To determine the role of ER chaperones in the biogenesis of Orai1.
Methods: Wild type, calreticulin deficient (crt-/-), calnexin deficient (cnx-/-) and CHO cells were used for measurement of Store Operated Ca Channel activity. Cells were transfected with EGFP-HA-Orai1 cDNA to examine the localization of Orai1 using immunocytochemistry and live cell imaging using confocal microscopy.
Results: Our data illustrates that loss of calreticulin function, but not calnexin, results in a significant decrease in the SOC activity. There was no significant change in the total Orai1 and STIM1 protein level in calreticulin deficient cells as was determined by Western blot analysis. Interestingly, loss of calreticulin function resulted in the accumulation of EGFP-HA-Orai1 protein intracellularly, which explains the decrease in SOC activity. We further demonstrate that inhibition of the ubiquitin-proteasome pathway enhances SOC activity in calreticulin deficient cells and show for the first time that Orai1 is ubiquitinated in different cell types.
Conclusions: Calreticulin, but not calnexin, function as the chaperone regulating proper maturation of Orai1 protein.
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New Identified Genetic Variants are Proven to be Associated with Breast Cancer Susceptibility and Aggressiveness in the Tunisian Population
AbstractBackground: Single nucleotide polymorphisms (SNPs) may be causally related to breast cancer risk or be indirectly associated with breast cancer risk through linkage disequilibrium with a causal sequence variant. Risk-associated SNPs will have different frequencies among women with or without breast cancer and can be detected using genetic association studies. Recently, several genome-wide association studies (GWAS) have identified novel risk alleles for breast cancer including those related to FGFR2, TNRC9, MAP3K1, LSP1 genes and other locus. Replication in independent population samples is essential for validation of the results of any genome-wide association. Since the genetic variants (SNPs) are common, they are likely to be shared across different populations with diverse ancestry backgrounds. It would be of interest to determine and investigate the potential implications of these novel markers revealed by genome-wide association studies to predict the “sporadic” breast cancer risk and progression in MENA populations.
Methods: Using TaqMan® SNP genotyping assays, we characterize the variation of 9 SNPs (include rs1219648, rs2981582, rs8051542, rs12443621, rs3803662, rs889312, rs3817198, rs13387042 and rs13281615) for 520 patients with sporadic breast cancer and 360 healthy controls in the Tunisian population. The association between the genotypes and breast cancer susceptibility and tumors characteristics was estimated by computing odds ratio (OR) and 95% confidence levels from logistic regression analyses. Association of the genetic marker with the rates of breast cancer overall survival was assessed using univariate analysis.
Results: Two genetic variants in FGFR2 are significantly associated with the risk of breast cancer: rs1219648 AG/GG (OR=1.23, P=0.002) and rs2981582 AG/ AA (OR=1.33, P=0.003). Two significantly increased risks of breast cancer were respectively associated with T allele of rs8051542 in TNRC9 (OR=1.43, P=0.0003) and C allele of rs889312 in MAP3K1 (OR=1.33, P=0.006). The AG and GG genotypes of rs2981582 in FGFR2 have a significant association with a high risk of lymph node metastasis and a decreased overall survival in breast cancer patients.
Conclusion: Our results for the first time replicated the results of breast cancer GWAS in the Arabic population and indicated that some polymorphisms are associated with increased breast cancer risk and disease progress in the Tunisian population.
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The Association of Adiponectin Gene Variants rs2241766 [+45T/G] and rs1501299 (276G > T) in Arab Patients Presenting with Acute Coronary Syndrome
Authors: Ayman El-Menyar, Nasser Rizk, Isra Marei and Jassim Al SuwaidiAbstractBackground: Adiponectin is a fat derived hormone, known to decrease in type-2 diabetes (DM) and coronary artery disease (CAD). Moreover, our previous study showed that total adiponectin and its HMW isoform decreased in acute coronary syndrome (ACS) patients compared to healthy controls. The adiponectin gene ADIPOQ is located on chromosome 3q27. Two single nucleotide polymorphisms (SNPs) (rs1501299 and rs2241766) in ADIPOQ gene and their possible associations with ACS were investigated among Arab patients resident in Qatar.
Methods: A case-control association study was performed on 142 (ACS) Arab patients and 115 Arab healthy controls from Qatar. Genotypes were determined using TaqMan real time PCR assay. Serum adiponectin level was determined using ELISA.
Results: The GG, GT and TT genotype frequencies of the rs2241766 [+45 T/G] variant showed significant difference between the control and (ACS) cases (45.2%, 40.0%, 14.8% vs. 46.2%, 25.0%, and 28.8%, p=0.0001), respectively. In contrast, there was no significant association between the control and (ACS) cases in the GG, GT and TT genotype frequencies of the rs1501299 (276G > T) (39.8%, 49.1%, 11.1% vs. 41.7%, 48.3%, and 10.0%, p=0.94), respectively. T allele was the minor allele for both rs2241766 and rs1501299 with a frequency of (0.31) and (0.25) respectively. All allele frequencies were in equilibrium for HWE among study subjects [P=0.51] for SNP rs2241766 and (p=0.12) for rs1501299. Using logistic regression analysis with adjustments of age and body mass index, only the T allele of rs2241766 variant was significantly associated with risk of (ACS) with odds ratio of 2.430, (95% of CI 1.010–5.563) with the (p= 0.047) among subjects using the genetic dominant model.
Furthermore, using dominant genetic model, linear regression analysis showed an inverse significant association between the SNP rs2241766 (+45T>G) in the adiponectin gene and serum adiponectin levels (r=−0. 621,p<0.001) among all subjects. By contrast, no significant association was found between rs1501299 (276G > T) and adiponectin level.
Conclusion: This study suggests that rs2241766SNP (+45T>G) in the adiponectin gene is associated with high risk for ACS, and has an effect on the serum adiponectin levels among Arab populations.
Study Supported by UREP(4-3-42),QF & MRC,HMC.
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Molecular Signature of Human Brown Adipocyte-Like PAZ6 Cells
Authors: Mouaadh Abdelkarim, Virginia Takahashi, Smitha Kota, Donny Strosberg and Lotfi ChouchaneAbstractBackground: Prevalence of metabolic syndrome is directly correlated with increasing occurrence of obesity characterized by accumulation of fat in visceral, lower body, and upper body subcutaneous depots. In a number of species, brown adipose tissue (BAT) converts triglycerides into heat by non-shivering thermogenesis, thus controlling the amount of white adipose tissue. Until recently, BAT was thought to be mostly absent in adult humans but now sizeable BAT depots have been visualized by Positron Emission Tomography (PET) and Computed Tomography (CT) scanning. Relatively little is known about the signaling pathways differentially regulated in brown adipocytes compared to white adipocytes. However, our progress of understanding is hindered by the paucity of well-characterized reliable in vitro model systems.
Objectives: The aim of this study is to characterize the only in vitro model of human BAT cell line, and to identify signature genes for BAT, and compounds implicated in the enhancement of brown phenotype.
Methods: A human BAT cell line, PAZ6, was previously created by immortalizing somatic cells using the large T antigen of Simian Virus 40. The expression of BAT associated markers has been verified by real time RT-PCR done on RNA and immunoblot using specific antibodies performed on cell lysates and supernatants, before and after differentiation and treatment with various compounds such as adrenergic receptor agonist (isoproterenol) and PPAR agonist (rosiglitazone).
Results: We have identified several BAT associated markers, including PDRM16 and the 3 adrenergic receptor. This marker is highly expressed in PAZ6 cells compared to the white adipocyte. In addition, we demonstrate that these cells share a common precursor with myocytes but not with white adipocytes. Our results show that several genes are up-regulated after PPAR gamma activation. Moreover, we confirm that these cells respond to Beta adrenergic agonist treatment. Finally, we identify that the transcription factor farnesoid X Receptor (FXR) induces the expression of BAT associated marker following treatment by its agonist : CDCA.
Conclusions: The PAZ6 cells constitute a readily available surrogate for human brown adipocytes to develop pharmacologic strategies to promote BAT expansion and activation.
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The Genetic Basis of Human Metabolic Individuality and its Role in Complex Diseases
More LessAbstractGenome-wide association studies (GWAS) have identified many risk loci for complex diseases, but effect sizes are typically small and information on the underlying biological processes is often lacking. Associations with metabolic traits as functional intermediates can overcome these problems and potentially inform individualized therapy. Here we report a comprehensive analysis of genotype-dependent metabolic phenotypes using a GWAS with non-targeted metabolomics. We identified 37 genetic loci associated with blood metabolite concentrations, of which 25 show effect sizes that are unusually high for GWAS and account for 10–60% differences in metabolite levels per allele copy. Our associations provide new functional insights for many disease-related associations that have been reported in previous studies, including those for cardiovascular and kidney disorders, type 2 diabetes, cancer, gout, venous thromboembolism and Crohn's disease. This study advances our knowledge of the genetic basis of metabolic individuality in humans and generates many new hypotheses for biomedical and pharmaceutical research. This work was recently published with contributions from WCMC-Q (Suhre et al., Nature 2011, http://www.dx.doi.org/10.1038/nature10354). After a general presentation of the results I shall focus on the relevance of this work for future research in Qatar.
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Systems Approach Towards Diabetes Research Using Molecular profiling Tools
Authors: Amrita K Cheema and Nasser RizkAbstractThe prevalence of insulin resistance and diabetes has shown a dramatic worldwide increase. In Qatar, the prevalence of diabetes is twice that of the United States today, possibly due to lifestyle and dietary changes. Diabetes has an enormously adverse impact on the afflicted population leading to patient mortality, morbidity and staggering health care costs to the nation. Untreated or inadequately treated diabetes results in serious health complications including eye, heart, kidney and nerve damage.
Mass spectrometry based molecular profiling is a powerful tool for interrogation of the underlying molecular alterations which define the etiology and patho-physiology of a complex disease such as diabetes. As a part of the QNRF funded study, we have used ultra performance liquid chromatography (UPLC) in conjunction with high resolution quadrupole time of flight mass spectrometry (Q-TOFMS) for proteomic and metabolomic profiling of bio-fluids derived from diabetic and healthy individuals recruited at the Qatar University Hopsital. The overall goal of this project was to investigate the changes in the molecular profiles in the two groups (normal and diabetic) at the protein and small molecule metabolite level and correlate these changes to define putative biomarkers with potentially diagnostic or prognostic clinical value. We have used a “smart pooling strategy” for bio-fluids from each group to enhance disease associated differences. LCMS/MS based metabolomic analysis of the diabetic and normal pre and post meal metabolome was followed by bioinformatics analysis to identify dysregulated metabolites. Additionally, we have used iTRAQ based UPLC-QTOFMS/MS for quantitative proteomic profiling.
These data were taken together for integrated functional pathway analysis to correlate the changes. Furthermore, we have used a validation cohort for targeted quantitation of candidate markers using multiple-reaction monitoring mass spectrometry. The results will be discussed in context of the state of art technology used for studying pathway perturbations resulting in a diabetic phenotype. A part of this study reported at the HUPO2010, won a “young investigator award” for Dr. Cheema. The ARF presents a unique opportunity to present results from this exciting study, deliberate upon the challenges faced and elaborate on the plans for future studies aimed at a mechanistic insight.
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Elevated Myocardial Na+/H+ Exchanger Isoform 1 Induces Cardiac Hypertrophy and the Upregulation of Osteopontin Gene Expression
Authors: Fatima Mraiche, Larry Fliegel, Jin Xue and Gabriel G. HaddadAbstractCardiac hypertrophy (CH), a prominent feature that predisposes the heart to failure, is associated with the activation of multiple molecular and cellular changes in the circulation and heart. The Na+/H+ exchanger isoform 1 (NHE1) has been implicated in the development and progression of CH. To better understand the involvement of NHE1, transgenic mice that express cardiac specific active NHE1 expression were studied. N-line mice expressed wild-type NHE1, and K-line mice expressed activated NHE1. NHE activity of adult ventricular cardiomyocytes and protein expression were elevated by approximately 2 and 3-fold in the N- and K-line mice vs. control. The K-line mice assessed by echocardiography demonstrated significant global cardiac dysfunction. Left ventricular fractional cell shortening and ejection fraction were significantly decreased in the K-line mice (23.1 ± 3.8% and 45.2 ± 6.9% K-line vs. 36.5 ± 1.1% and 66.4 ± 1.5% control, respectively; p<0.05). The K-line mice also exhibit myocardial remodeling. The heart weight to body weight ratio was significantly greater in the K-line mice (143 ± 10.0% of control; P<0.05). Cross sectional area (K-line 195.6 ± 16.4% of control; p<0.05) and interstitial fibrosis (K-line: 275.4 ± 11.6% of control; p<0.05) were also elevated. Genechip analysis also revealed that expression of active NHE1 upregulated osteopontin (OPN) gene expression (>1,500 fold change) and its signaling pathways. OPN is a matricellular protein and a cytokine induced upon tissue injury and remodeling of various organs, including human heart failure (HF). Our study shows that expression of activated NHE1 induces CH and elicits specific molecular changes that lead to CH.
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Muscle Mechanical Determinants of Sprint Performance Across the Professional Life-Span in Soccer Players
Authors: Dino Adriano Palazzi and Jose Alberto Mendez-VillanuevaAbstractBackground: The functional relevance of strength and power measures as an index of functional performance (i.e., sprinting speed) in soccer remains unclear.
Objective: The aim of this study was to investigate the relationships among mechanical variables related to strength and power tests and their influences on sprinting speed in professional soccer players across their life-span.
Methods: Isokinetic measures (quadriceps (Q) peak torques and power at 60°/s and 300°/s), kinetic outputs of the counter-movement jump (CMJ), and sprinting speed (the first 5 m split time (i.e., initial speed) and the 15 to 20 m split time (i.e., leading sprint) of a 20 m sprint), were measured in 224 professional soccer players (age 23.7 ± 4.4 y, body mass 71.4±8.8 kg and height 1.75±0.06 m).
Results: The values for each variable for the fast and slow groups are displayed in Table 1. All the mechanical variables were significantly different between the fast and slow players regardless of the results were ranked according to 5 m or 15–20 m times. The results of the multiple regression analyses identified CMJ height as the best predictor of sprinting performance for the 5 m (R=0.39, P=0.000) and 15–20 m (R=0.51, P=0.000) sprint.
Conclusions: All the mechanical variables could discriminate between the fast and slow players. However, a great degree of unexplained variance still remains indicating there may be better mechanical predictors of sprinting speed in soccer players.
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