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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
101 - 150 of 281 results
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Design of Validation Study of the Lower Extremity Functional Status Scale for Anterior Cruciate Ligament Reconstruction in Arabic Speaking Athletes
Authors: Amy Leona Sandridge and Michael SarestskyAbstract Background: The Lower Extremity Functional Scale (LEFS) has been found to be reliable and valid in several populations and languages. This 20-question scale is a self-report measure, which assesses the ability of persons with any musculoskeletal condition related to the lower extremity from 0 to 80. The objective measurements used to compare it will be the 40-meter fast self-paced walk [SW], timed up-and-g Read More
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Temperature Circadian Variations in Worker in a Hot Environment in Qatar
Abstract Background: Body core temperature fluctuates during the day following a sinusoidal variation with a maximum acrophase in the late afternoon. This circadian rhythm is mainly endogenous but it can be influenced by environmental factors such as work and social and physical activities. Objectives: 1) To verify if aluminum shift-workers would present different core temperatures at different times of the day (i.e. Read More
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Prevalence of Smoking and Exposure to Secondhand Smoke among Qatari School Children: Results from the Pilot Phase of the National Epidemiological Study of Lung Health among Qatari National School Children
Authors: Amy Leona Sandridge, Hana Said, Amjad Tuffaha and William GreerAbstract Secondhand exposure to tobacco smoke (SHS) has been proposed to potentially increase risk of acute respiratory infections, middle ear disease, exacerbated asthma and decreased lung function in children. The objectives of this study of Qatari schoolchildren were six-fold: to assess feasibility of a national study on athletic participation, healthy living and lung function; to provide estimates of height and weight; to esti Read More
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Negative Influence of Intermittent Ramadan Fasting and Unhealthy Lifestyle on Body Composition, Sleep, Physical Fitness and Iron Indices in School Boys
Abstract Background: Schoolchildren must practice healthy diet as well as active lifestyle to support their physical growth and development. Previous studies have shown that intermittent fasting can affect dietary intake, sleep duration and circadian patterns among adults, but there is a lack of related literature in schoolchildren. Purpose: The aim of this study was to objectively assess the effect of Ramadan fasting on phy Read More
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Combined Temperature and Altitude Challenges do not Exacerbate the Degree of Muscle Fatigue Despite Shorter Cycling Time to Exhaustion
Authors: Olivier Girard and Sébastien RacinaisAbstract This study investigated the combined effect of environmental temperature [neutral (22°C/30%rH) vs. warm (35°C/40%rH)] and altitude challenge [sea level (FIO2 0.21) vs. reduced O2 content (FIO2 0.15)] on locomotor performance and the degree of end-exercise neuromuscular fatigue. Eleven physically active subjects cycled to exhaustion at constant workload (66% of their VO2max) in four different environment Read More
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Neuromuscular Function Following Exercise-Heat Stress: Influence of Exercise Modality
More LessAbstract Background: Exercise-induced hyperthermia is associated with a decrease in force production capacity during brief (<5 seconds) and sustained (>10 seconds) maximal voluntary isometric contractions (MVIC). A reduction in central nervous system drive to exercising muscles is suggested to mediate this decrement to prevent thermal injury. Until recently, the influence of exercise modality on neuromuscular func Read More
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A New Innovative Therapy for Sports Related Soft Tissue Injuries: Platelet-Rich Plasma (PRP)
Authors: Hans Tol, Bruce Hamilton and Hakim ChalabiAbstract Introduction: Platelet-rich plasma (PRP) is the cellular component of plasma that settles after centrifugation, and contains numerous growth factors. There is increasing interest in the sports medicine about providing endogenous growth factors directly to the injury site, using autologous blood products such as PRP, to potentially facilitate healing and earlier return to. Despite this interest, and apparent widespr Read More
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Automated Marking of Sleep Spindles using Wavelet Packet Decomposition and Peak Tracking
Authors: Abdul Jaleel Palliyali, Reza Tafreshi, Beena Ahmed, Zurwa Khan and Hassan Al-HailAbstract Sleep spindles, along with K-complexes are hallmarks of stage 2 non rapid eye movement (NREM) sleep EEG. Sleep spindles are of significant interest because they are associated with phenomena such as ‘stability’ of sleep, updating of knowledge with new memories, processing of sensorimotor and mnemonic information. Therefore, accurately marking their presence in sleep recordings is essential. Accurate ide Read More
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Electrocardiogram QRS Detection Using Temporal Correlation
Authors: Jongil Lim, Reza Tafreshi and Abdul JaleelAbstract Myocardial infarction (MI) is one of the most common sudden onset heart diseases. Early diagnosis of MI is essential for management and treatment initiation. Electrocardiogram (ECG), as a noninvasive electrical recording of the heart behavior is one of the most reliable diagnostic tools for identifying patients with suspected MI. The QRS complex is the major feature of an ECG. There have been many researches for QRS Read More
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Posaconazole a Prophylactic Therapy in Cancer Patients: Analysis and Pharmacokinetics
Authors: Dalia Hamdy, Hajer El-Geed, Samah El-Salem and Manal ZaidanAbstract Intorduction: Posaconazole (PZ), an antifungal prophylactic therapy in hematologic cancer patients, was added to Al-Amal Hospital formulary in 2010. The objectives of this study are: 1. To identify the practice guidelines and pharmacokinetics information regarding PZ use in Qatar and worldwide. 2. To conduct a drug use evaluation (DUE) report at Al-Amal Hospital. Methods: Literature review was conducted t Read More
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Deformation of Imbedded Blood Vessels Due to Uniform Pressure
More LessAbstract We consider the deformation of a blood vessel imbedded in soft tissue that is surrounded by a rigid structure. The vessel deforms when the difference between its external and internal pressures exceeds a certain value. To represent the deformation, we use a physical model consisting of two concentric cylinders tethered by numerous nonlinear springs representing the biological tissues surrounding the vessel Read More
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Elevation of Alpha Acid Glycoprotein (AGP) does not Correlate with the Resistance of Chronic Myeloid Leukaemia (CML) to Imatinib Mesylate (IM)
Authors: Nader Izz Eddin Al-Dewik, Hanadi El Ayoubi, Andy Jewell and Hisham MorsiAbstract Background: Despite the efficacy of IM in treating CML, high degree of resistance has already been noted. AGP may reduce drug efficacy through its ability to interact with IM. Objectives: Could the level of AGP be correlated with CML resistance/response to treatment and if it could be employed as a biological marker for CML resistance. Methods: 25 CML patients were investigated for AGP level, serum samples were an Read More
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BCR-ABL Kinase Point Mutations don't Correlate with the Resistance of Chronic Myelocytic Leukemia (CML) to Imatinib Mesylate (IM); A Study on CML Patient Population in Qatar
Authors: Nader Izz Eddin Al-Dewik, Hanadi El Ayoubi, Andy Jewell and Hisham MorsiAbstract Background: More than 45% of CML patients in Qatar resist the first line of treatment; Internationally, certain ABL mutations are the most common cause of IM resistance Objectives: To screen for BCR-ABL kinase mutations in CML patients treated in Qatar and to study if point mutations can be correlated with resistance to treatment. Methods: Peripheral Blood (PB) and Bone Marrow (BM) samples were collected from 25 Read More
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Vitamin D Status in Pregnant Women and their Babies in Qatar
Authors: Samar Al-Emadi and Mohammed HammoudehAbstract Back ground and Objectives: Vitamin D deficiency is very common in pregnant women and the current guidelines for vitamin D intake during pregnancy of 200-400 IU has been challenged recently .We conducted this study to determine the prevalence of Vitamin D deficiency among pregnant women and to evaluate the safety weekly oral 50,000 IU vitamin D supplementation for the mother and the newborn. Read More
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The Outcome of Severe Traumatic Brain Injury in Children in Qatar: Six year study
Abstract Background: Traumatic brain injuries (TBIs) remain as an important public health problem in most developed and developing countries and may also result in temporary or permanent disability. Objective: The aim of this study was to determine the incidence pattern of the burden of severe TBIs among young children in Qatar and to suggest practical prevention policies that can be implemented in Qatar. Methods: The Read More
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Role of Homocysteine Measurement for Early Diagnosis of Vitamin B12 Deficiency in the First Days of Life
Authors: Tawfeg Ben-Omran, Noora Shalbik, Hongying Gan-schreier, Ghassan Abdoh, Rehab Ali and Georg HoffmannAbstract Background: Vitamin B12 (vit B12) deficiency is one of the major causes of megaloblastic anaemia and should be avoided as early as possible since a supplementation of mother and child can prevent neurological symptoms of the baby. Furthermore, the neurological symptoms of affected children are (partially) reversible. Elevated methylmalonic acid in urine and homocysteine (Hcy) in plasma are sensitive indicato Read More
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Partial Analysis of Olfactory Receptor Subgenome in the Arabian Camel
Authors: Atef Khalaf Sayed, Jilian Rowe, Karsten Suhre and Benjamin ShykindAbstract Many animals have evolved mechanisms to withstand the harsh desert environment, characterized by extreme high temperatures and scarce water supplies. The Arabian Camel, and the Arabian Oryx are valued economically and culturally. These animals can survive for several days without food or water. As the Arabian peninsula undergoes rapid and vast industrial changes, it is increasingly important to understand t Read More
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Does Number of Ports affect Outcomes in Patients Undergoing Laparoscopic Pyloromyotomy? Retrospective Chart-Review Study
Authors: Tariq O Abbas and Adel IsmailAbstract Background: Although open Ramsted's pyloromyotomy is the gold standard for the surgical management of infantile hypertrophic pyloric stenosis, laparoscopic pyloromyotomy has been found highly successful. Various factors, however, can affect the outcomes of surgical interventions in these patients. We observed a relationship between the number of ports used and outcome in patients undergoing lapar Read More
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High Resistance Rate of Chronic Myeloid Leukaemia (CML) to Imatinib Myselate (IM) Might be Related to Protein Tyrosine Phosphatase Receptor Type Gamma (PTPRG) Down-Regulation
Abstract Background: CML is the most common myeloproliferative disease observed among adults, its 1st line of treatment is IM with a response rate ranging between 55 – 90%. In Qatar the resistance rate is higher than 45%. Our collaborators in Italy recently reported on the relation between CML and PTPRG. Methods: One cohort of patients (n=25, period=3years) receiving Imatinib was studied for haematological, cy Read More
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Development of A Wearable and WBAN-Based Vital Signs Monitoring System for Low-cost Personal Healthcare in Qatar
Authors: Eng Hock Tay and Dagang GuoAbstract Population aging is a worldwide phenomenon, but its impact on Qatar is unique. The proposed system aims at comprehensive and integrated vital signs (ECG, Saturation of Arterial Oxygen (SpO2), BP and Heart rate (HR)) monitoring using a wearable sensor platform without professional involvements or interfering the elderly's everyday activities. A novel wireless physiological sensor node with single highly-int Read More
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Pharmacovigilance in the Middle East
Authors: Kerry Wilbur, Amna Fadul and Hala SonallahAbstract Background: The importance of countries to support their own national pharmacovigilance cannot be understated: citizens may have unique ethnicities, traditions, and diets influencing reaction to medication; alternate brands of therapy may be imported or manufactured and differ in ingredients or production processes; ADRs and toxicities associated with traditional and herbal remedies also need to be monitored. T Read More
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The Assignment of the Gene Responsible for Congenital Cataract and Micropthalmia to the Pericentromeric Region of the X Chromosome and Examination of Candidate Genes
Authors: Vasiliki Chini, Diana Mina, Jamil Alami and Hatem El-ShantiAbstract Background: X-linked diseases are single gene disorders that are due to the presence of mutations in genes that reside on the X chromosome. X-linked recessive disorders are predicted from the family structure, where only boys are affected and there is no father to son transmission of the mutant allele. Heterozygous females are usually non-symptomatic carriers but can manifest a milder form of the dis Read More
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The Spectrum of MEFV Mutations in an Arabic Cohort
Authors: Abdulghani Khilan, Rowaida Taha, Dina Ahram, Suhail Ayesh, Jamil Alami and Hatem El-ShantiAbstract Background: Autoinflammatory diseases are a group of disorders characterized by seemingly unprovoked inflammation in the absence of high-titer autoantibodies or antigen-specific T cells. Familial Mediterranean Fever (FMF) is an autosomal recessive disorder. It is characterized by recurrent self-limiting episodes of fever and painful polyserositis. FMF is prevalent in specific ethnic groups—namely, non-Ashkenazi Jews Read More
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Discovery of a Probable Gene Mutation Causing Mental Retardation, Microsomia, and Signs of Skeletal Dysplasia in an Arab Family with a Previously Undelineated Autosomal Recessive Disorder
Authors: Mazen Naim Osman, Yasser Al-Sarraj, Ghing Billedo, Samiha Zaineddin, Hatem El-Shanti and Jamil AlamiAbstract Background: Autosomal recessive diseases are considered as a major group of single-gene disorders among Arab population. We have recruited a family with three siblings with a mental retardation (MR) syndrome who were born to consanguineous Qatari parents. The clinical problems comprised significant mental retardation, microsomia, signs of skeletal dysplasia, and thoracolumbar kyphosis. The oldest pati Read More
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Characterization of the LPIN2 Gene and its Protein and Examination of its Role in Psoriasis
Authors: Yasmin Walid Abu Aqel, Fatma Abdallah, Hanan Abu Nada, Mazen Osman, Jamil Alami and Hatem El-ShantiAbstract Psoriasis is a chronic inflammatory skin disease posing a considerable worldwide health problem due to its high prevalence, associated morbidity and high health-care costs. It is a multifactorial “complex” disorder, with compelling evidence for a genetic predisposition. On the other hand, Majeed syndrome, a Mendelian disorder of bone and skin inflammation is caused by homozygous mutations in LPIN2. Many obser Read More
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Prevalence of Autism Spectrum Disorders in Qatar
More LessAbstract Prevalence rate of autism-spectrum disorders (ASD) in Qatar is uncertain, and speculation that their incidence is increasing continues to cause concern. Although the apparent increased prevalence of autism may reflect improved detection and recognition of autism and its variants. No comprehensive survey has been done to estimate the prevalence of autism in Qatar. The target population for this study is children Read More
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Gene Identification in Autosomal Recessive Forms of Familial Epilepsy
Abstract Background: Epilepsy is a disorder of the brain characterized by an enduring predisposition to generate recurrent epileptic seizures, as well as, the neurobiologic, cognitive, psychological, and social consequences. The estimated proportion of the general population with active epilepsy at a given time is 10 per 1,000 people. The cause of epilepsy remains unknown in a substantial proportion of affected individual Read More
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Study of Undelineated Autosomal Recessive Disorder among Arabs
Authors: Jamil Al-Alami, Yasser Al-Sarraj, Yosra Bejaoui, Mazen Osman, Eman Abuazab, Mohammed El-Dow and Hatem El-ShantiAbstract Background: The number of genes identified to be responsible for autosomal dominant genetic conditions far exceeds those identified for autosomal recessive conditions. This is expected because autosomal recessive disorders are rare and a single large family or a large number of smaller families are needed for gene mapping and identification. However, this hurdle can be overcome by homozygosity mapping utilizi Read More
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Breast Cancer Screening Amongst Arabic Women Living in the State of Qatar: Preliminary Results of the Cross-Sectional Community Based Survey
Abstract Background: Breast cancer is the most common cancer among women in Qatar, incidence rate is rising and it is often diagnosed at advanced stages. Early detection of breast cancer through regular screening activities has been found to decrease morbidity and mortality rates. Although research on breast cancer screening in the Middle East is scarce, low levels of knowledge and poor participation rates have be Read More
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Factors Influencing Lifestyle Risk Behaviours Associated with Cardiovascular Diseases amongst Qatari Women
Abstract In Qatar, cardiovascular diseases are the leading cause of mortality and morbidity. Cardiovascular diseases can be prevented and controlled by modifying lifestyle risk behaviours such as physical inactivity, unhealthy diet and smoking. Obesity as the result of physical inactivity and unhealthy diet raises the risk of heart diseases. Studies show that 62.6% of Qatari women were overweight and the prevalence of o Read More
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The Association of Polymorphisms rs2055314, rs2272522 and rs331894 in Close Homologue of L1 gene (CHL1) with Schizophrenia in the State of Qatar
Abstract Background: Previous reports demonstrated polymorphisms in the CHL1 gene located on chromosome 3p26 (close homologue of L1) are associated with schizophrenia among different ethnic populations. The aim of this study is to investigate the associations of the haplotypes of the theses genetic marker (SNPs) of CHL1 gene locus; rs2055314(C/T), rs2272522 (C/T) and rs331894 (A/G) with schizophrenia patients in Q Read More
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The Associations of Transcription Factor 7-like 2 [TCF7L2] Gene with Gestational Diabetes Mellitus in State of Qatar
Abstract Background: Genetic and environmental factors are highly related with gestational diabetes mellitus (GDM) and type 2 diabetes (T2D). Our objective was to explore whether some genetic variants such as rs12255372, rs7903146 of TCF7L2 gene are significantly associated with the risk of gestational diabetes mellitus among Arabian population. Methods: A case control study was designed for such genetic association study. Read More
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Design of a Flexible Imaging Probe for Robotics Surgery
Authors: Carlos A Velasquez, Xianming Ye and W. Jong YoonAbstract Minimally invasive surgery assisted by robots has shown higher efficiency and precision. In spite of the good performance of the state of the art surgery robotics systems, the size and number of external incisions required by instruments should be reduced to lower the scarring and incisional pain experienced by the patient. Other important improvement derived from the use of smaller incisions is the diminishment o Read More
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The Burden of Autism on Caregivers: A Snapshot From the State of Qatar
Authors: Muna Said Al-Ismail, Sara Ahmed, Nadir Kheir, Ola Ghoneim, Amy L Sandridge and Fadhila AlrawiAbstract Background: Caring for a child diagnosed with autism is strongly linked to maternal caregiving burden. It forces family members to modify their daily lives to suit their different reality and it imposes social, psychological, and economical hardships. No previous research has assessed the burden associated with caring for a child with autism on the lives of caregivers in Qatar or the Gulf country region. Objective: To assess t Read More
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Loss Of Calreticulin Function Decreases NFKB Activity By Stabilizing IKB Protein
Authors: Nasrin Mesaeli, Kawthar Al-Dabhani, Shahrzad Jalali and Hamid MassaeliAbstract Background: Transcription factor NFKB is activated by several processes including inflammation, endoplasmic-reticulum (ER) stress, increased Akt signaling and enhanced proteasomal degradation. Calreticulin is an ER Ca2+ binding chaperone, which regulates many cellular processes. Previously, we have shown that loss of calreticulin function results in the activation of ER stress that is accompanied by a sign Read More
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Protective Effects of Melatonin on Cisplatin Induced Growth Inhibition of MCF-7 Breast Cancer Cells
Authors: Vignesh Shanmugam and Dietrich BüsselbergAbstract Background: Pineal hormone melatonin (MEL) is a versatile molecule with diverse physiological roles ranging from circadian entrainment to anti-cancer effects. Clinical trials indicated that a co-application of cisplatin and melatonin improved the 1-year survival rate. Also, Futugami (2001) claimed melatonin enhances the sensitivity of an ovarian cancer cell line to cisplatin. Objective: Here we study the anti-cancer eff Read More
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Prevalence and Awareness of AIDS among Qatari Community
Authors: Bothaina Saleh Elgahani and Asma Mohamed NetfaAbstract This research was carried out to examine the awareness about HIV/AIDS. Introduction: AIDS is caused by the HIV virus, which attacks human immunity and can be incubated up to 10 years without symptoms. The infection can be transmitted through blood by injection or injury with infected tools and through sexual relations with infected persons. Rationale: As HIV/Aids awareness is lacking, we believe that educating Read More
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Possible Effects of Sport Practice on the Respiratory Volumes and Possible Effects on Heart Rates and Blood Pressure in Adolescent Females
More LessAbstract This study was carried out to examine the difference between the respiratory volumes in athlete and non-athlete adolescent females, how does exercise affect the respiratory volumes and how could the effects of exercise on the respiratory system affect the heart rate? Introduction: The respiratory and circulatory systems are the most important systems in the body as they involve vital organs (lungs and heart). They Read More
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Management of Advanced Ectopic Pregnancy: Comparative Study between State of Qatar and Kingdom of Bahrain
More LessAbstract Background: Ectopic pregnancy is an increasing health risk for women that cause maternal death in the first trimester. The incidence of ectopic pregnancy is 1–2% of pregnant women. The Fallopian tubes are the most common site of implantation (95.5%). Risk factors are higher in women with damaged fallopian tubes. Ultrasound (US) and (-hCG) are the diagnostic tools. Management includes medical (methotrexat Read More
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Implication of Protein-C in Thrombophilic State and Metastatic Dissemination
Authors: Hamda Ahmad Al-Thawadi, S Mirshahi, H Al Farsi, A Rafii, A Therwat, J Soria and M MirshahiAbstract The coagulation/fibrinolytic system controls the intravascular fibrin homeostasis; in addition to participating in a wide variety of physio-pathological processes. The components of the system have an influence on tumor metastasis, growth and invasion. This is a result of their involvement in tumor matrix construction, angiogenesis and cell migration. Thrombosis of unexplained etiology among healthy and canc Read More
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Epithelial to Mesenchymal Transition in Ovarian Cancer Cell
Authors: Halema Al-Farsi, Raphael Lis, J Soria, H Al-Thawadi, A Therwat, A Rafii and M MirshahiAbstract Epithelial ovarian cancer is the most lethal gynecologic malignancy with the majority of cases being diagnosed after the disease has become metastatic according to the report by Obstetrics and Gynecology, Duke University Medical Center USA, 2008. Consequently, genetic and epigenetic changes that disturb motility are likely to be important for the pathogenesis of ovarian cancer. Although ovarian cancer can b Read More
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Undifferentiated iPS Cells Do Not Regenerate Functional Lung Tissue When Seeded on Native Lung Extracellular Matrix under Biomimetic Culture Conditions
Authors: Heba Al-Siddiqi, Bernhard Jank, Roger Ng, Jeremy Song, Joseph Vacanti and Harald OttAbstract Perfusion-decellularized native lungs seeded with human BJ RNA-induced pluripotent stem (BJ-RiPS) and umbilical vein endothelial cells failed to regenerate functional lung tissue as quantified by immunohistochemistry (no detection of TTF1,CC10,and Pro-SPB), gene expression (non-significant differences in lung-specific gene expression as compared to cells cultured under standard conditions), and in vitro lung gas ex Read More
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Genetics of Obesity
Authors: Mashael Nedham Al-Shafai, Phillippe Froguel and Mario FalchiAbstract Obesity is a major health problem that has reached epidemic levels worldwide. Obesity is considered a highly heritable and genetically heterogeneous disorder. Despite the improvement in our understanding of the genetic basis of obesity, the underlying genetic cause of most families with extreme obesity is still unknown. In this study, we aim to elucidate the missing heritability of obesity in bariatric surgery pati Read More
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Genetics of Type 2 Diabetes among Qatari Families
Authors: Wadha Al-Muftah, Mario Falchi, Ramin Badii and Philippe FroguelAbstract The prevalence of type 2 diabetes mellitus (T2D) is increasing rapidly worldwide with figures being projected to reach 700 million and 366 million by 2030 respectively, according to the recent reports by the World Health Organization 2010 and the International Diabetes Federation 2010. T2D development has been shown to be driven by both environmental and genetic factors. Consanguinity among Middle-Eastern Read More
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Genetic and Epigenetic Investigations of SNCA in Parkinson's Disease
Authors: Kholoud Nedham Alshafai, Alexandra I F Blakemore and Lefkos MiddletonAbstract Parkinson's disease (PD) (OMIM168600) is the second most common age-related neurodegenerative disorder worldwide with a prevalence of more than 1% in people over 65 years old. The major hallmark of PD brain change is the formation of Lewy bodies, which are mainly composed of a protein called alpha-synuclein (encoded by the SNCA gene), aggregated together with other proteins. Genetic variants of SNCA hav Read More
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Non-invasive Physiological Monitoring for the Detection of Stressful Conditions
Abstract Chronic stress is a leading risk factor for heart diseases, diabetes, asthma and depression. However, physicians find it difficult to continuously track a person's stress levels throughout the day, as current techniques of electrocardiogram and blood pressure monitoring are not practical. There is thus a critical need for a non-invasive, ambulatory device to track physiological stress over extended periods of time. Read More
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An Arabic-Based Tutorial System for Children with Special Needs
Authors: Jihad Mohamad AL Jaam, Moutaz Saleh, Ali Jaoua and Abdulmotaleb ElsaddikAbstract In spite of the current proliferation of the use of computers in education in the Arab world, complete suites of solutions for students with special needs are very scarce. This paper presents an assistive system managing learning content for children with moderate to mild intellectual disabilities. The system provides educational multimedia contents, inspired from the local environment, in different subjects such as mat Read More
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Spider: A System for Finding Illegal 3D Video Copies
Authors: Mohamed Hefeeda and Naghmeh KhodabakhshiAbstract Three-dimensional (3D) videos are getting quite popular, and equipment for recording and processing them are becoming affordable. Creating 3D videos is expensive. Thus, protecting 3D videos against illegal copying is an important problem. We present a novel system for finding 3D video copies. Our system also identifies the location of the copied part in the reference video. The system can be used, for example, Read More
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Interference Identification for Next Generation Wireless Networks
Authors: Serhan Yarkan and Khalid A QaraqeAbstract With the huge success of cellular mobile radio communications, demand for wireless services, applications, and technologies is expected to increase further. Such an increase forces recently emerging technologies (e.g., 4G) to coexist with the old ones (e.g., 2G–3G) in next generation wireless networks (NGWNs). In order for NGWNs to support all of these services and applications with the ever-increasing demand, wirel Read More
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Towards Node Cooperation in Mobile Opportunistic Networks
Authors: Abderrahmen Mtibaa and Khaled HarrasAbstract Mobile devices such as smart-phones and tablets are becoming ubiquitous, with ever increasing communication capabilities. In situations where the necessary infrastructure is unavailable, costly, or overloaded, opportunistically connecting theses devices becomes a challenging area of research. Data is disseminated using nodes that store-carry-and-forward messages across the network. In such networks, node coopera Read More
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