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99 articles for “Biology”

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Research ArticleOpen accessIn the abstractUltrastructural Evidences of Hepatitis B Infection in Human Liver Biopsies Disclose Complex Assembly and Morphogenesis Pathways for Hepatitis B VirusViviana Falcon, Ivon Menéndez, Nelson Acosta-Rivero et al.Despite of recent advances on acknowledge of hepatitis B virus (HBV) structure and biology, little is known about the morphogenesis and release of virions. In this study, the ultrastructural analysis of HBV components in liver biopsies from chronically HBV-infected patients disclosed complex assembly and morphogenesis pathways for HBV. HBV core (HBcAg) and surface (HBsAg) antigens were specifically identified in all … …American Journal of Infectious Diseases, Vol. 4, Issue 2 · 30 Jun 2008 · 7,094 accessesView PDFCite
Research ArticleOpen accessIn the abstractGrowth Performance of the Red-Stripe Weevil Rhynchophorus schach Oliv. (Insecta: Coleoptera: Curculionidae) on Meridic DietsChoon-Fah J. Bong, Chin-Chin Er, Pang-Hung Yiu, Amartalingam RajanBiology and growth performance of Red Stripe Weevil, Rhynchophorus schach Oliv. were studied using meridic diets. The diets consisted of sugarcane (Saccharum officinarum L.) bagasse, copra (Cocos nucifera L.) cake and sago (Metroxylon sagus Rottb.) flour as main ingredients. Larvae or locally known as sagoworm, in copra cake diet exhibited the fastest growth with maximum weight gain of 1609 mg … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 8,138 accessesView PDFCite
Research ArticleOpen accessIn the abstractMicroarray Analysis of Human Vascular Smooth Muscle Cell Responses to Bacterial LipopolysaccharideJoe Minta James, J. Yun, Sandy Der, Shikha RanaAccumulating evidence suggest a causal role of bacterial and viral infections in atherogenesis. Bacterial lipopolysaccharide (LPS) has been shown to stimulate resting vascular smooth muscle cells (SMC) with the production of inflammatory cytokines and modulation of quiescent cells to the proliferative and synthetic phenotype. To comprehensively identify biologically important genes associated with LPS-induced SMC phenotype modulation, we compared the transcriptomes … …American Journal of Immunology, Vol. 3, Issue 2 · 31 Dec 2007 · 6,998 accessesView PDFCite
Research ArticleOpen accessIn the abstractRedox Sensing and Cardiac Myocyte Loss: Some Recent InsightsShyamal K. GoswamiGeneration of reactive oxygen-nitrogen species (ROS/RNS) has long been ascribed to pathophysiological conditions like ageing, neurodegenerative and cardiovascular disorders. However, more recent evidences suggest that while generation of ROS/RNS at a higher threshold is deleterious, at a lower dose these can act as second messengers, influencing specific cellular events like cell growth and differentiation, embryonic development, protection against ischemic injuries … …American Journal of Biochemistry and Biotechnology, Vol. 3, Issue 4 · 31 Dec 2007 · 6,350 accessesView PDFCite
Research ArticleOpen accessIn the abstractAsymptotic Behavior for Solution of Reaction-Diffusion SystemsM. Yahi, K. SaoudiThe existence, uniqueness, and asymptotic behavior of the solution of a balanced two-component reaction-diffusion system have been investigated. It was shown that a global and unique solution existed and its second component can be estimated using the Lyapunov Functional. It was, also, demonstrated that each component of the solution converged, at infinity, to a constant which can be found in … …Journal of Mathematics and Statistics, Vol. 3, Issue 3 · 30 Sep 2007 · 6,849 accessesView PDFCite
Research ArticleOpen accessIn the abstractParallel Algorithms for String Matching Problem on Single and Two Dimensional Reconfigurable Pipelined Bus SystemsS. Viswanadha Raju, A. Vinaya BabuWe considered string matching on LARPBS and 2D LARPBS. This has applications such as string databases, cellular automata and computational biology. The main use of this method is to reduce the time spent on comparisons in string matching by using LARPBS. We investigated exact string matching and approximate string matching problems. For these two sub problems, we obtained O (n) … …Journal of Computer Science, Vol. 3, Issue 9 · 30 Sep 2007 · 6,537 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Student-Centered Learning ModelMihyar Hesson, Kaneez Fatima ShadBased on the authors experience in applying different approaches of active learning and student-centered teaching, the main problem that prevented the achievement of the full advantages of these approaches is the lack of motivation of students for self-centered learning. A new model for a student-centered learning is presented in this work. This model is of teaching integrative thinking, based on … …American Journal of Applied Sciences, Vol. 4, Issue 9 · 30 Sep 2007 · 9,424 accessesView PDFCite
Research ArticleOpen accessIn the abstractApplications of Real-time Reverse Transcription Polymerase Chain Reaction in Clinical Virology Laboratories for the Diagnosis of Human DiseasesR. Manojkumar, V. MrudulaEarly diagnosis that prevents further expansion of the causative agent and thereby aids control and eradication of infectious agents is critical for countries trying to obtain a particular disease free status. In these diagnostics speed is paramount, including the assay’s applicability, sensitivity, specificity, cost effectiveness and patentability. Real-time Reverse Transcription PCR (rRT-PCR) has revolutionized the field of molecular biology and … …American Journal of Infectious Diseases, Vol. 2, Issue 4 · 31 Dec 2006 · 6,557 accessesView PDFCite
Research ArticleOpen accessIn the abstractBiochemical Effects of Recombinant Porcine Somatotropin on Pig Fetal Growth and Metabolism: A ReviewD. Villanueva-García, S. A. Olmos-Hernández, D. Mota-Rojas et al.Prenatal development is mainly dependent on a close interrelation between nutritional supply use and regulation by hormones and growth factors. Mechanisms during early embryonic development are sensitive to manipulation through selected management strategies of the sow and modifications of this strategy may serve as a model for the examination of molecular and cellular events controlling early embryonic growth. The administration … …American Journal of Biochemistry and Biotechnology, Vol. 2, Issue 4 · 31 Dec 2006 · 6,626 accessesView PDFCite