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- Volume 2014, Issue 1
QScience Connect - Volume 2014, Issue 1
Volume 2014, Issue 1
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Automatic seizure detection based on Teager Energy Cepstrum and pattern recognition neural networks
More LessAbout 1–3% of the world population suffers from epilepsy. A long term inpatient/ambulatory electroencephalogram (EEG), lasting from a few hours to several days, which definitely contains hallmarks of epilepsy, is required clinically to diagnose, monitor and localize the epileptogenic zone. The traditional method relies on well-trained neurophysiologists who visually inspect the entire lengthy EEG signals, which is tedious and time-con Read More
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Characterisation of thermal diffusivity and tensile properties of ultrasonically washed woven fabrics
More LessLaundering of textile garments is taken for granted worldwide, employing conventional washing machines to provide the physical effort exerted to remove dirt and debris from garments. In this study, the conventional washing technique and the advanced ultrasonic washing technique were analysed and compared by using several different types of fabrics. The thermal diffusivity, tensile strength and the breaking extension properties of th Read More
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In vitro effect of the adding of an exogenous enzyme blend (Natuzyme®) on rumen microbial fermentation and methane production of diets containing different NDF concentrations
Authors: A. Faramarzi-Garmroodi, M. Danesh Mesgaran, E. Parand and A.R. VakiliThe objective of the present study was to evaluate the effect of an exogenous enzyme blend (Natuzyme®) on the fermentation responses of diets differing in neutral detergent fiber (NDF) concentrations, using a proposed gas production technique. Diets contained different ratios of alfalfa hay to wheat straw, to provide different NDF concentration, such as 320 (D1), 340 (D2) and 360 (D3) g/kg dry matter (DM). Two hundred fifty mg of Read More
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Developing an agro-climatic zoning model to determine potential growing areas for Camelina sativa in Argentina
Authors: SL Falasca, MC del Fresno and C WaldmanThe purpose of this paper was the development of an agro-climatic zoning model to determine potential growing areas for Camelina sativa in Argentina. Camelina (Camelina sativa L.) is a promising and sustainable alternative energy crop that belongs to the Brassicaceae (mustard) family. Camelina sativa oil contains around 40% fatty acids, of which only a small percentage are saturated. Camelina sativa derived biokerosene used in aviation ha Read More
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Effect of green marketing on consumer purchase behavior
Authors: Narges Delafrooz, Mohammad Taleghani and Bahareh NouriIn recent years, concern about the environment has been highlighted in many areas of life. Our limited resources are damaged, the future of human life disturbs this planet, thus leaders and thinkers have to create a solution. The influence of green marketing tools have been analysed in this study, namely the eco-label, eco-brand and environmental advertisement. The sampling used was available cluster sampling. Tehran city is divided into four Read More
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So, can teaching grammar work?
More LessTeaching grammar has been a major area of debate and controversy in language teaching and second language acquisition for some time. Harsh criticism of traditional grammar teaching has continued over the last few decades, which has resulted in great confusion and lack of confidence among language teachers. This paper aims to encourage second language (L2) teachers and second language acquisition (SLA) researchers to reco Read More
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An efficient algorithm on time-fractional partial differential equations with variable coefficients
Authors: Jamshad Ahmad and Syed Tauseef Mohyud-DinIn this paper, a fractional complex transform (FCT) is used to convert the given fractional partial differential equations (FPDEs) into corresponding partial differential equations (PDEs), and subsequently reduced differential transform method (RDTM) is applied on the transformed PDEs. The results obtained are re-stated by making use of inverse transformation that yields in terms of original variables. It is observed that the proposed algorithm is Read More
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New application perspective for tetrahedral amorphous carbon coatings
More LessPresently various carbon-based materials are used to achieve different surface functions and coatings for anti-corrosion and electrochemical application. These are in the form of homogeneous composite materials and chemically modified polymers, with many patent pending in this field. However, association of performing anticorrosion, adherence crosslinking and hydrophobic solutions with other surface functions are more o Read More
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Heat wave hazard modelling: Qatar case study
Heat waves are considered to be the major cause of environmental and weather-related fatalities. Heat waves also have a severe impact on people with chronic cardiac and respiratory diseases, such as asthma. With climate change and global warming processes taking place, general global climatic models predict that heat wave events will increase in frequency, duration, and intensity. Therefore, heat wave modelling has attracted consid Read More
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On a recurrence relation
Authors: Reza Mostafaei and Narges RastegarIn this paper, we investigate the nature of the solutions to the following difference equation:where the initial values , parameters α, β, B, C are positive and k ∈ {1,2,3,…} is fixed. We study the boundedness nature and global behavior of its solutions. Also, we investigate the analysis of the semi-cycles under special conditions.
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Solvent-free synthesis, spectral studies, antimicrobial activities of some (E)-N-(substituted benzylidene)-9-ethyl-9H-carbazole-3-amine derivatives
Authors: P. Mayavel, K. Thirumurthy, S. Dineshkumar and G. ThirunarayananBackground: This study aims to synthesis a series of (E)-N-(substituted benzylidene)-9-ethyl-9H-carbazole-3-amines, using solvent-free fly-ash:perchloric acid catalyst under microwave irradiation. To then characterize them using analytical, physical and spectroscopic data. Methods: Solvent-free microwave assisted (E)imines were adopted for the synthesis of (E)-N-(substituted benzylidene)-9-ethyl-9H-carbazole-3-amine, using fly-ash:perchloric ac Read More
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Cyproheptadine for central hypertension?
Authors: Guido Filler, Lara Hart, April Chan, Elizabeth Cairney and Asuri N PrasadBackground: Approximately one-fifth of paediatric intracranial tumors result in hypertension. The condition is difficult to treat in this population, particularly if it is refractory, since there is little guidance on patient management beyond first-line therapy with IV labetalol. Methods: A 20-month-old patient was hospitalized with cerebral herniation-induced loss of consciousness and a posterior fossa mass was found. Although several first-li Read More
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Studying the impact of presence of point mutation, insertion mutation and additional chromosomal abnormalities in chronic myeloid leukemia patients treated with imatinib mesylate in the State of Qatar
Authors: Nader I Al-Dewik, Andrew P Jewell, Mohammed A Yassin, Hanadi R El-Ayoubi and Hisham M MorsiBackground: Imatinib is failing as a first line treatment in more than 40% of chronic myeloid leukemia (CML) patients in Qatar. We thus investigated ABL1 kinase domain mutations and additional chromosomal abnormalities (ACAs) as underlying mechanisms to explain this high rate of treatment failure. Methods: Between November 2006 and December 2011, all CML patients in Qatar were studied for BCR-ABL1 kinase domain mutations and Read More
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Endogenous knowledge and human disturbance impact on abundance of two underutilized wild edible tree species in southern Benin
This study assessed endogenous knowledge and impact of human disturbance on the abundance of two underutilized wild fruit tree species: Drypetes floribunda (Müll. Arg.) Hutch. (Euphorbiaceae) and Mimusops andongensis Hiern. (Sapotaceae) in the Lama Forest Reserve (LFR) in southern Benin. A survey was conducted with 145 randomly selected people amongst the surrounding communities of LFR in order to assess the endogenous k Read More
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A stability analysis of a self-gravitating optically thick magnetized quantum plasma including the effects of black body radiation
Authors: V. Shrivastava, A.K. Patidar and R.K. PensiaWe have discussed the effect of black body radiation on self-gravitational instability of infinite homogeneous, optically thick quantum plasma carrying a uniform magnetic field. With the help of relevant linearized perturbation quantum magneto-hydrodynamic equations of the problem, using normal mode technique, a general dispersion relation is obtained with black body radiation, quantum correction and magnetic field. Discussed when propa Read More
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Removal of mercury in fixed-bed continuous upflow reactors by mercury-resistant bacteria and effect of sodium chloride on their performance
Authors: Jaysankar De, Johannes Leonhäuser and Lilit VardanyanUrgent need to reduce the amount of toxic mercury compounds in the wastewater of industries and subsequent reuse of metal ions, has led to an increasing interest in microbial bioremediation. Two Pseudomonas aeruginosa strains, namely, isolate CH07 and isolate Bro12, and a genetically engineered strain P. putida (KT 2442 mer::73) were used to study the kinetics of mercury removal from liquid M9 medium, considering the po Read More
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Synthesis, antimicrobial, antioxidant and insect antifeedant activities of some aryl bicyclo[2.2.1]heptene-2-yl-methanones
More LessBackground: The aim of this study was to synthesize aryl heptene[2.2.1]methanone derivatives, including 2-naphthyl-based heptene[2.2.1]methanones, by an aqueous phase fly-ash catalyzed [4+2] cycloaddition Diels-Alder reaction of cyclopentadiene and aryl chalcones: to evaluate their antimicrobial, antioxidant and insect antifeedant activities. Methods: Green solvent ethanol-assisted aqueous phase fly-ash catalyzed [4+2] cycloaddition Di Read More
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Uniform stabilization of the telegraph equation with a support by fuzzy transform method
Authors: Rajib Ghosh, Sanchita Chowdhury, Ganesh Chandra Gorain and Samarjit KarWe consider the vibrations of electrical waves or telecommunication signals. The uniform stabilization of such vibrations is directly established with an explicit form of exponential energy decay estimate. Using the fuzzy transform method, a closed form numerical scheme is constructed to support the stability result.
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Investigating the country-of-origin image on willingness to buy foreign products
Authors: Hossein Pourahmadi and Narges DelafroozToday, the international business market is extremely competitive and there are many new ideas used to attract customers. Customers have many options when buying products. However, there are many elements that affect the success of the product and the customer's willingness to buy it. In this paper, based on a deductive method and using the structural equation modeling (SEM) the authors investigate country-of-origin image and h Read More
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