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270 results for “S-9 Fraction”
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Research ArticleOpen accessEvery word in the titleVolatility in Malaysian Stock Market: An Empirical Study Using Fractionally Integrated ApproachChin Wen CheongThis study explores the fractionally integrated (FI) time series analysis in Malaysian stock market. Four proxies of latent volatility, namely the absolute return, squared return and range-based (Parkinson and Garman and Klass) volatilities are selected for the empirical studies. In addition, the well-known FI autoregressive conditional variance (ARCH) type model is also taken into account for comparison purposes. Our empirical … …American Journal of Applied Sciences, Vol. 5, Issue 6 · 30 Jun 2008 · 6,712 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffects of Extraction and Fractionation Period on the Yield of a Tropical Peat Soil (Hemists) Humic AcidsSusilawati Kasim, Osumanu Haruna Ahmed, Nik Muhamad Ab. Majid, Khanif YusopThe isolation of humic acids from soils is laborious and time consuming. Factors that affect the yield of humic acids isolated from soils include extraction, fractionation and purification periods. This study was conducted to investigate whether a relationship could be separately established between extraction time, fractionation time, and the yield of humic acids of a tropical peat soil (Hemists), as … …American Journal of Agricultural and Biological Sciences, Vol. 2, Issue 3 · 30 Sep 2007 · 8,102 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNelson and Plosser Revisited: Evidence from Fractional ARIMA ModelsGuglielmo Maria Caporale, Luis A. Gil-AlanaIn this study fractionally integrated ARIMA (ARFIMA) models are estimated using an extended version of Nelson and Plosser[1]’s data set. The analysis employs[11]’s maximum likelihood procedure. Such a parametric approach requires the model to be correctly specified in order for the estimates to be consistent. A model-selection procedure based on diagnostic tests on the residuals, together with several likelihood criteria, … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 6,718 accessesView PDFCite
Research ArticleOpen accessIn the keywordsImpact of Mangrove Leaves (Rhizophora apiculata) in Limewater on Nutrients Digestibility, Rumen Ecosystem and in vitro Methane ProductionZaitul Ikhlas, Novirman Jamarun, Mardiati Zain et al.The Mangrove is one of the plants that live in coastal areas, because a lot of their availability, mangrove leaves can be used as animal feed. The problem with this mangrove is contained a fairly high tannin which can be harmful to livestock. This study aims to determine the impact of boiled mangrove leaves (Rhizophora apiculata) with lime water on … …American Journal of Animal and Veterinary Sciences, Vol. 18, Issue 1 · 20 Feb 2023 · 6,455 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAn Investigation of Compressed Natural Gas Engine for Nitrogen Oxides ReductionP. M. Diaz, B. Durga PrasadProblem statement: This study describes the use of Reformer Gas (RG) to alter NOx emission in a CNG-fueled HCCI engine. Comparison with diesel, natural gas has a very high octane number (≈120) and high auto-ignition temperature (≈600°C). Composed mostly of methane, natural gas is the only common fuel to manifest relatively pure, single-stage combustion. Other fuels have stronger low-temperature reaction … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 15 May 2012 · 7,299 accessesView PDFCite
Research ArticleOpen accessIn the keywordsProtective Effect of Enicostemma littorale Blume Methanolic Extract on Gentamicin-Induced Nephrotoxicity in RatsNiraj Mukundray Bhatt, Kinjal Chauhan, Sharad Gupta et al.Problem statement: The Amino glycoside antibiotics cause drug induced nephrotoxicity at therapeutic doses and thus limits the use clinically. Oxidative stress is one of the main reasons for the development of nephrotoxicity. Approach: In light of this the aim of the present study was to investigate the role of mitochondrial as well as post-mitochondrial oxidative stress in the development of … …American Journal of Infectious Diseases, Vol. 7, Issue 4 · 30 Nov 2011 · 9,552 accessesView PDFCite
Research ArticleOpen accessIn the keywordsIn Vitro and In Vivo Anticancer Activity of Bacoside A from Whole Plant of Bacopa Monnieiri (Linn)N. S. Prakash, R. Sundaram, S. K. MitraProblem statement: Natural products have long been a fertile source of cure for cancer, which is projected to become the major cause of death in this century. Major classes of anticancer compounds include alkaloids, terpenoids, flavonoids and lignans. We have chosen terpenoids (bacosides) because terpenoids like taxol are currently being used in cancer chemotherapy. The anticancer activity of Bacoside A … …American Journal of Pharmacology and Toxicology, Vol. 6, Issue 1 · 7 Jun 2011 · 9,668 accessesView PDFCite
Research ArticleOpen accessIn the keywordsA New Method for Accuracy Assessment of Sub-Pixel Classification ResultsH. Emami, B. MojaradiProblem statement: Classification accuracy assessment is the main stage of information extraction to evaluate the performance of a classifier. According to the output's classifiers (thematic map/fraction map), a properly strategy for accuracy assessment should be taken into consideration. Since pure pixels are used in traditional accuracy assessment of full pixel classifiers they are not suitable for assessment of sub-pixel classifiers. … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 7,482 accessesView PDFCite
Research ArticleOpen accessIn the keywordsNumerical 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 · 7,322 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAcrylic Rubber Latex in Ferrocement for Strengthening Reinforced Concrete BeamsD. Raj Kumar, B. VidivelliProblem statement: In India, the early deterioration of reinforced concrete structures has become a big social problem in recent years. An essential research is needed for the development of effective repair materials and their execution systems comes to an important issue from the viewpoint of the longevity of infrastructures at present. Ferrocement laminates are introduced to enhance the overall performance … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 7,857 accessesView PDFCite