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1,026 results for “behavior”
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Research ArticleOpen accessIn the abstractEstimating HIV-1 Incidence Using the Serologic Testing Algorithm for Recent HIV Seroconversion at HIV Counseling and Testing Centers in the City of São Paulo, BrazilKatia Cristina Bassichetto, Denise Pimentel Bergamaschi, Maria Amelia Veras et al.The network of HIV counseling and testing centers in São Paulo, Brazil is a major source of data used to build epidemiological profiles of the client population. In this study, HIV-1 incidence from November of 2000 to April of 2001 was estimated, comparing recently infected individuals to those with long-standing infection in terms of epidemiological and socio-behavioral aspects. To identify … …American Journal of Infectious Diseases, Vol. 4, Issue 4 · 31 Dec 2008 · 6,458 accessesView PDFCite
Research ArticleOpen accessIn the abstractMining Fuzzy Weighted Browsing Patterns from Time Duration and with Linguistic ThresholdsTzung-Pei Hong, Ming-Jer Chiang, Shyue-Liang WangWorld-wide-web applications have grown very rapidly and have made a significant impact on computer systems. Among them, web browsing for useful information may be most commonly seen. Due to its tremendous amounts of use, efficient and effective web retrieval has become a very important research topic in this field. Techniques of web mining have thus been requested and developed to … …American Journal of Applied Sciences, Vol. 5, Issue 12 · 31 Dec 2008 · 6,397 accessesView PDFCite
Research ArticleOpen accessIn the abstractNumerical Study of the Temperature Separation in the Ranque-Hilsch Vortex TubeSaeid Akhesmeh, Nader Pourmahmoud, Hasan SedgiThis research has been carried out in order to provide an understanding of the physical behaviors of the flow variation of pressure and temperature in a vortex tube. A computational fluid dynamics model is used to predict the flow fields and the associated temperature separation within a Ranque-Hilsch vortex tube. The CFD model is a steady axisymmetric model (with swirl) … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2008 · 7,316 accessesView PDFCite
Research ArticleOpen accessIn the abstractHuman Computer Interaction Approach in Developing Customer Relationship ManagementMohd H.N.M. Nasir, Mustaffa Kamal, Wan A.W. RozaliProblem statement: Many published studies have found that more than 50% of Customer Relationship Management (CRM) system implementations have failed due to the failure of system usability and does not fulfilled user expectation. This study presented the issues that contributed to the failures of CRM system and proposed a prototype of CRM system developed using Human Computer Interaction approaches in … …Journal of Computer Science, Vol. 4, Issue 7 · 31 Jul 2008 · 7,140 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnvironmental Factors and Limbic Vulnerability in Childhood AutismRichard LatheThe rise in prevalence of autism spectrum disorders (ASD) is suggestive of a new etiology. Diagnostic substitution alone is unlikely to account for the increase, while genetic association with detoxification gene alleles points to an environmental contribution. Subtle structural anomalies in the ASD brain are widespread but limbic damage seems important for the development of behaviors diagnostic of ASD. The … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 2 · 30 Jun 2008 · 7,678 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Novel Rodent Model of Autism: Intraventricular Infusions of Propionic Acid Increase Locomotor Activity and Induce Neuroinflammation and Oxidative Stress in Discrete Regions of Adult Rat BrainDerrick F. MacFabe, Karina Rodríguez-Capote, Jennifer E. Hoffman et al.Innate neuroinflammatory changes, increased oxidative stress and disorders of glutathione metabolism may be involved in the pathophysiology of autism spectrum disorders (ASD). Propionic acid (PPA) is a dietary and gut bacterial short chain fatty acid which can produce brain and behavioral changes reminiscent of ASD following intraventricular infusion in rats. Adult Long-Evans rats were given intraventricular infusions of either PPA … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 2 · 30 Jun 2008 · 12,613 accessesView PDFCite
Research ArticleOpen accessIn the abstractAltered Sulfur Amino Acid Metabolism In Immune Cells of Children Diagnosed With AutismJung H. Suh, William J. Walsh, Woody R. McGinnis et al.Autism Spectrum Disorder (ASD) is a behaviorally defined neurodevelopmental disorder whose etiology is poorly understood. Recent studies have shown that autistic children may be experiencing increased inflammation and oxidative stress. Altered immune regulation may be one contributing factor to inflammation and oxidative stress in autistic children. Sulfur amino acid (SAA) metabolism plays a critical role in regulating blood leukocyte functions … …American Journal of Biochemistry and Biotechnology, Vol. 4, Issue 2 · 30 Jun 2008 · 10,789 accessesView PDFCite
Research ArticleOpen accessIn the abstractThree Mild Stresses Known to Increase Longevity in Drosophila melanogaster Flies do not Increase Resistance to Oxidative StressÉric Le BourgExposure to a mild stress at a young age (hypergravity, cold or heat) increases longevity and resistance to heat shocks in Drosophila melanogaster flies and it may also delay behavioral aging and increase resistance to other stresses. The effect of these mild stresses on resistance to oxidative stress has not been studied. Flies were thus fed on a saccharose solution … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 1 · 31 Mar 2008 · 7,301 accessesView PDFCite
Research ArticleOpen accessIn the abstractHormetic and Non-Hormetic Dose-Response Functions in Stress Effects on Memory and Synaptic Plasticity: Issues and MechanismsPhillip R. Zoladz, David M. DiamondOver a century of behavioral research has shown that stress can exert both positive and negative effects on memory. We have explored the idea that the complex effects of stress on learning and memory can be characterized by hormetic- and non-hormetic dose-response functions, in which stress may either stimulate or impair brain memory mechanisms, depending, in part, on the timing … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 1 · 31 Mar 2008 · 8,184 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Preliminary Investigation into the Environmental Awareness of the Omani Public and their Willingness to Protect the EnvironmentSabah A. Abdul-WahabThis study was conducted with the objective of evaluating the present status of environmental awareness of Omani citizens and their willingness to contribute to environmental protection. The focus of the study was to investigate the Omani public’s level of knowledge about general basic and current local and international environmental issues and to find out their environmental attitudes and behaviors towards … …American Journal of Environmental Sciences, Vol. 4, Issue 1 · 29 Feb 2008 · 7,148 accessesView PDFCite