78 results for “U-shaped”

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Research ArticleOpen accessIn the abstractFactors Affecting the Geometry of Silver Nanoparticles Synthesis in Chrysosporium Tropicum and Fusarium OxysporumNamita Soni, Soam PrakashProblem statement: Biosynthesis of nanoparticles using fungal cells is a novel approach to develop biotechnological possess such as bioleaching and bioremediation. In the present study, an effort was made to investigate the effect of physio-chemical parameters on the silver nanoparticle formation with the fungus Chrysosporium tropicum Carmichael and Fusarium oxysporum Schltdl. Approach: The possibilities to manipulating the geometry of silver … …Current Research in Nanotechnology, Vol. 2, Issue 1 · 20 Jan 2012 · 19,454 accessesView PDF Cite

Research ArticleOpen accessIn the abstractErgodic Capacity Analysis of Multiple Input Multiple Output Systems with Dual Hop Amplify and Forward Relay NetworksC. Poongodi, A. ShanmugamProblem Statement: In MIMO system, capacity mainly depends on the channel and the antenna characteristics. The capacity can be improved by proper design of antenna elements and choosing appropriate array configuration and the directive elements give more capacity than omni directional elements. The dual polarized antennas are better than single polarized antennas as the former can provide two information channels. … …Journal of Computer Science, Vol. 7, Issue 12 · 17 Oct 2011 · 6,739 accessesView PDF Cite

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 · 7,091 accessesView PDF Cite

Research ArticleOpen accessIn the abstractNeuroprotection Afforded by GABA Against Oxygen-Glucose Deprivation-Induced Injury in Rat Cortical Brain Slices: An Hormetic Dose-Response EffectLorenzo Ricci, Massimo Valoti, Giampietro Sgaragli, Maria FrosiniThe aim of the present investigation was to assess neuroprotection exerted by GABA (100 nM-100 mM) in rat cortical brain slices subjected to oxygen-glucose deprivation and reoxygenation. Neuronal injury and neuroprotection were assessed by measuring the release of glutamate and lactate dehydrogenase and tissue water content. Results demonstrate that GABA exerted neuroprotective effects according to a U-shaped, hormetic-like, concentration-response curve, … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 1 · 31 Mar 2008 · 7,166 accessesView PDF Cite

Research ArticleOpen accessIn the abstractImmobilized Whole Cell System with Methyl Parathion-Degrading Activity for Organophosphate Insecticide DetectionChadaporn Pootawee, Witsanu Senbua, Jesdawan WichitwechkarnAs the result of the extensive use and high contamination of organophosphate (OP) insecticides in agricultural products and the environment, especially in developing countries, a simple and convenient means for OP detection and screening was investigated. Whole cells from the recombinant clone BpGP carrying methyl parathion (MP) degrading, mpdB, gene originating from MP-degrading Burkholderia cepacia and possessing MP-degrading activity were … …OnLine Journal of Biological Sciences, Vol. 18, Issue 3 · 18 Sep 2018 · 7,673 accessesView PDF Cite

InvestigationOpen accessIn the abstractMorphology, Anatomy, Chlorogenic Acid Content and Antioxidant Capacity of Xanthium strumarium L. and Xanthium spinosum L.Dinara Abdikhaliyevna Aldibekova, Murat Kizaibek, Mahaya Aisijiang et al.In this study, the morphological, anatomical features, chlorogenic acid content and antioxidant activities of two species from the genus Xanthium, namely Xanthium spinosum L. growing in the slopes of Mount Daubaba in the western part of the Talas Alatau of Tyulkibas region of the South Kazakhstan region and Xanthium strumarium L. growing in the slopes of the Alma-Arasan gorge of … …OnLine Journal of Biological Sciences, Vol. 18, Issue 2 · 23 May 2018 · 8,111 accessesView PDF Cite

Research ArticleOpen accessIn the abstractCavern Design Philosophy under High Stress Rock Condition a Case Study in Sri LankaBahram SalehiFor stabilizing of rock cavern stress condition and orientation, rock properties and cavern geometry have determinant effects. Numerical and analytical study and knowledge about self-support arching can assist to designer in appropriate understanding of cavern and ground interaction. The comparative studies by E. Hoek, showed that the mushroom shaped cavern was not an acceptable design because of high value stress … …American Journal of Applied Sciences, Vol. 14, Issue 3 · 21 Mar 2017 · 7,978 accessesView PDF Cite

Research ArticleOpen accessIn the abstractWillingness to Communicate in English: Academic Motivation and using English outside the Classroom as PredictorsMr. Ahmed Fahim YoussefWillingness to Communicate (WTC) in English has become a field of interest since the construct was introduced by McCroskey and Baer in 1985. This study, investigated 230 trainee teachers' Willingness to Communicate in English with a focus on their Academic Motivation and Their use of English outside the classroom. Gender, nationality, ethnic group, specialization and years of study at the … …American Journal of Applied Sciences, Vol. 13, Issue 12 · 11 Dec 2016 · 7,930 accessesView PDF Cite

Research ArticleOpen accessIn the abstractWhy is it so Difficult to Attract FDI to the MENA Countries?Partha Gangopadhyay, Mohamed ElafifIn this study we constructively argue that the relationship between FDI flows and the per capita GDP for the MENA countries has a novel feature-hitherto unrecognised-which can partially explain the great difficulty of the MENA region in attracting FDI. We show the existence of a separatrix, or trap, in terms of the per capita GDP: To the left of the … …American Journal of Applied Sciences, Vol. 13, Issue 9 · 16 Sep 2016 · 7,469 accessesView PDF Cite

Research ArticleOpen accessIn the abstractNexus between CO2 Emission, Energy Consumption and Economic Growth in ASEAN Countries Plus ChinaGhulam Mustafa, Ismail Abd Latif, Said Zamin Shah, Muhammad Khalid BashirThis study mainly contributes to test the Environmental Kuznets Curve (EKC) hypothesis using panel data for the ASEAN (Malaysia, Indonesia, Thailand and Philippines) countries plus China. Empirical focus of the study is to examine the nexus between CO2 emission, energy consumption and economic growth. While using panel data for 1971-2008 and applying panel co-integration techniques, the emergent findings of the … …American Journal of Environmental Sciences, Vol. 12, Issue 4 · 19 Aug 2016 · 7,856 accessesView PDF Cite