57 articles for “Reaction Technique”

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Research ArticleOpen accessIn the abstractEvaluation of the Severity of Mitral Valvular Regurgitation with Doppler Echocardiography Using Proximal Flow Convergence MethodPinjari Abdul Khayum, M.N. Giriprasad, P.V. SrideviProblem statement: Valvular regurgitation is recognized as the central cause of morbidity and mortality. Even though the clinician can detect the presence of regurgitation by mere physical examination; diagnostic methods become inevitable while estimating the severity of valvular regurgitation and in the transformation of cardiac chambers as in reaction to the volume overload condition. Lately, a promising new technology, the … …Journal of Computer Science, Vol. 5, Issue 2 · 28 Feb 2009 · 7,220 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAnalysis of Certain Tetracyclines and Oxytetracyclines through Charge Transfer ComplexationKhairi M.S. FahelelbomProblem statement: Several studies were carried out to develop and validate a simple, rapid and accurate spectrophotometric method for the analysis of tetracycline (TC) and oxytetracycline (OTC) in the pure form and in pharmaceutical dosage forms, despite the varieties of these analytical techniques, the literature revealed that no spectrophotometric method for determination of tetracycline and oxytetracycline using charge transfer complexation … …American Journal of Pharmacology and Toxicology, Vol. 3, Issue 3 · 30 Sep 2008 · 8,528 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordSynthesis of Zeolite A from By-Product of Aluminum Etching Process: Effects of Reaction Temperature and Reaction Time on Pore VolumeKanokorn Hussar, Sombat Teekasap, Nisakorn SomsukProblem statement: Increasing of the carbon dioxide (CO2) concentration in the atmosphere creates a global warming. Zeolite is used as CO2 absorbent. Approach: By-products from aluminum etching process, which carry a large amount of Al2O3 content, are useable as raw materials for synthesis zeolites type A using hydrogel process. A pore volume of zeolites is the key to achieve high … …American Journal of Environmental Sciences, Vol. 7, Issue 1 · 28 Feb 2011 · 7,836 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordModelisation of Nitrification under Inhibited Environment by Moving Bed Bio-Film Reactor TechniquePham Thi Hong Duc, Le Van Cat, Jean-Luc VaselProblem statement: Nitrification by Moving Bed Biofilm Reactor (MBBR) involves physical, chemical and biological processes to remove toxic ammonia for aquaculture that are governed by a variety of parameters, like substrate and dissolved oxygen concentrations, organic matters, temperature, pH, alkalinity and turbulence level, which impact negatively or positively on nitrification kinetics. Approach: The situation becomes more serious as the reaction … …American Journal of Environmental Sciences, Vol. 6, Issue 6 · 31 Dec 2010 · 6,946 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordRemediation of Methyl Tert-Butyl Ether (MTBE) Contaminated Water by Using In situ Catalytic and Biological Combined TechniquesA. Nikpay, H. Kazemian, M. SadeghiThe hydrolysis reaction of Methyl Tert-Butyl Ether (MTBE) into biodegradable products was studied on as-synthesized and commercial H-MFI zeolites. The effect of synthesis procedure and SiO2/Al2O3 ratio was investigated. The results obtained were indicated that H-MFI zeolites were effective in MTBE hydrolysis and increasing of the Si/Al ratio promotes the hydrolysis reaction. The amount of produced TBA was always lower … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 6,634 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordApplications 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 · 6,553 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordEvaluation of Nested PCRs targeting the BI and SAG2 Genes For Detection of Toxoplasma gondii Genome in Aqueous Humor From HIV Positive Toxoplasma Retinochoroiditis Patients in a Tertiary Eye HospitalB. Mahalakshmi, K.L. Therese, R. Kirthika et al.Abstract: Problem statement: To evaluate nPCR targeting B1 gene (primer set 1) with 3 other nPCRs targeting B1 gene (primer set 2), 3' end of SAG2 and 5' end of SAG2 gene, for detection of Toxoplasma gondii (T. gondii) genome on AH from HIV positive TRC patients. Approach: DNA extracted from AH of 12 TRC patients and 12 controls (patients … …Current Research in Medicine, Vol. 1, Issue 2 · 31 Dec 2010 · 6,886 accessesView PDF Cite