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524 articles for “Mechanisms”
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Research ArticleOpen accessIn the abstractNutritional Alterations in Drug Abusers With and Without HIVJanet E. ForresterMany studies have found that drug abusers have nutritional deficits, including weight deficits. The most plausible explanation for these deficits is dietary insufficiency. However, studies using objective measures of the dietary intake of drug abusers have failed to provide evidence of dietary insufficiency. Other mechanisms have rarely been examined. This article reviews the published literature on the nutritional status of … …American Journal of Infectious Diseases, Vol. 2, Issue 3 · 30 Sep 2006 · 6,444 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Assessment of Mirex Concentrations along the Southern Shorelines of the Great Lakes, USADennis A. Apeti, Gunnar G. lauensteinMirex is a persistent and toxic polychlorinated pesticide that has compromised environmental quality in the Great Lakes region since the 1960s. As a bioaccumulative and carcinogenic compound, mirex at its current levels in Lake Ontario is a concern because of the potential for trophic level transfer and biomagnification in top predators. As a part of the NOAA’s National Status and … …American Journal of Environmental Sciences, Vol. 2, Issue 3 · 30 Sep 2006 · 6,934 accessesView PDFCite
Research ArticleOpen accessIn the abstractRole of the Electronic Banking Services on the Profits of Jordanian BanksAhmad Zakaria SiamThis study aims at examining the effects of electronic banking on bank’s profitability in Jordan. How banking sector finds itself before a new fact imposed by technology revolution and digits to change their work mechanisms from traditional means to electronic means and the challenges banks face as a result. Furthermore, this study investigates the reasons behinds providing electronic banking services … …American Journal of Applied Sciences, Vol. 3, Issue 9 · 30 Sep 2006 · 8,768 accessesView PDFCite
Research ArticleOpen accessIn the abstractHuman-Robot Interface over the Web Based Intelligent SystemDesa Hazry, Masanori Sugisaka, Taki YujiThis research extends the capability for the new technology platform by Remote Data Inspection System (RDIS) server from Furukawa Co., Ltd. enabling the integration of standard Hypertext Markup Language (HTML) programming and RDIS tag programming to create a user-friendly “point-and-click” web-based control mechanism. The integration allows the users to send commands to mobile robot over the Internet. Web-based control enables … …American Journal of Applied Sciences, Vol. 3, Issue 1 · 31 Aug 2006 · 6,955 accessesView PDFCite
Research ArticleOpen accessIn the abstractOperation of an SLA-aware Grid FabricMatthias HovestadtResearch on Grid Computing started under purely technical questions of how to realize the virtualization of distributed resources. Now, the commercial user should be attracted to use the Grid. Future applications of the Next Generation Grid will demand for flexible negotiation mechanisms supporting various ways of Quality-of-Service (QoS) guarantees. In this context a Service Level Agreement (SLA) is a powerful … …Journal of Computer Science, Vol. 2, Issue 6 · 30 Jun 2006 · 6,659 accessesView PDFCite
Research ArticleOpen accessIn the abstractRole of HIV-1 Infection in Addictive Behavior: A Study of a HIV-1 Transgenic Rat ModelSulie L. Chang, Michael VigoritoEpidemiological research indicates that drug abuse is prevalent among individuals infected with HIV-1. Evidence from preclinical research also suggests that drugs of abuse exacerbate the progression of neuropathological changes in the HIV-1 infected brain probably through common mechanisms of neuronal injury. The effects of HIV-1 on the efficacy and abuse potential of controlled drugs such as morphine, however, has not … …American Journal of Infectious Diseases, Vol. 2, Issue 2 · 30 Jun 2006 · 7,630 accessesView PDFCite
Research ArticleOpen accessIn the abstractOpiates Upregulate Adhesion Molecule Expression in Brain MicroVascular Endothelial Cells (BMVEC): Implications for Altered Blood Brain Barrier (BBB) PermeabilityMadhavan P.N. Nair, Supriya D. Mahajan, Jessica L. ReynoldsThe blood-brain barrier (BBB) is an intricate cellular system composed of vascular endothelial cells and perivascular astrocytes that restrict the passage of immunocompetent cells into the central nervous system (CNS). Expression of the adhesion molecules, intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) on brain microvascular endothelial cells (BMVEC) and their interaction with human immunodeficiency virus (HIV-1) … …American Journal of Infectious Diseases, Vol. 2, Issue 2 · 30 Jun 2006 · 6,610 accessesView PDFCite
Research ArticleOpen accessIn the abstractSurvival and Changes in Germination Response of Rumex obtusifolius Polygonum longisetum and Oenothera biennis during Burial at Three Soil DepthsShiro TsuyuzakiTo investigate patterns in seed germination and survival at three different soil depths over a long time span, seeds of Rumex obtusifolius, Polygonum longisetum and Oenothera biennis were examined as a function of season (spring, autumn) and soil depth (3, 10, 30 cm). Buried seeds were exhumed after 3 years and subjected to two different temperature treatments. These were gradually … …American Journal of Environmental Sciences, Vol. 2, Issue 2 · 30 Jun 2006 · 7,194 accessesView PDFCite
Research ArticleOpen accessIn the abstractFunctional Characterization of Neutrophils from Nine-Banded Armadillos (Dasypus novemcicntus; Edentata, Dasypodidae) Infected with MicrofilariaeMarcela López-Hurtado, Fernando M. Guerra-InfanteThe neutrophils from uninfected armadillos have adequate phagocytic and bacteriocidal activity, but diminished chemotactic activity. However, endocytic activity from armadillo neutrophils infected with bacteria, parasites or viruses is unknown. This report shows that neutrophils from armadillos infected with microfilariae displayed deficiencies in their bacteriocidal mechanisms and TNF-like production, but not in their endocytic capacity. …American Journal of Animal and Veterinary Sciences, Vol. 1, Issue 1 · 30 Jun 2006 · 6,659 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Evaluation of Implementing Calls Prioritization with Different Queuing Disciplines in Mobile Wireless NetworksSalman A. AlQahtani, Nasser-Eddine RikliIt is known that efficient call handling mechanisms can greatly improve cellular network performance. One way to improve system performance of cellular network is to use efficient handover schemes when users changes between cells. This paper focuses on the performance evaluation of originating and handover calls prioritization using different queue size and discipline. Both calls will be queued until they … …Journal of Computer Science, Vol. 2, Issue 5 · 31 May 2006 · 6,470 accessesView PDFCite