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93 articles for “NAC”
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Research ArticleOpen accessIn the abstractComparative Effects of Drought and Salt Stress on Germination and Seedling Growth of Pennisetum divisum (Gmel.) Henr.Wafa’a A. Al-TaisanProblem statement: Water stress due to drought and salinity is probably the most significant abiotic factor limiting plant and also crop growth and development. Salinity and drought stresses are physiologically related, because both induce osmotic stress and most of the metabolic responses of the affected plants are similar to some extent. Water deficit affects the germination of seed and the … …American Journal of Applied Sciences, Vol. 7, Issue 5 · 31 May 2010 · 27,318 accessesView PDFCite
Research ArticleOpen accessIn the abstractPart I: Removing of Zn(II) from Polluted Water: Determination of Precipitation Limit Of Zn(II) Ion With 2-Hydroxy-1,2,3-Propanetricarboxylic AcidFatmir Faiku, Haxhere Faiku, Arben Haziri et al.Problem statement: The goal of this research was to investigate the condition for removing of Zn cation from water, through precipitation method with 2-hydroxy-1,2,3-propanetricarboxylic acid as ligand. Approach: In this study we examined the precipitation of Zn(II) ion in water solutions of ZnSO4 × 7H2O (1×10-2 and 5×10-3 mol L-1) with 2-hydroxy-1,2,3-propanetricarboxylic acid (1×10-1-1×10-3 mol L-1) in constant ionic strength … …American Journal of Environmental Sciences, Vol. 6, Issue 1 · 28 Feb 2010 · 6,973 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermination of Precipitation Limit of Zn(II) Ion with (2S)-2-Aminobutanedioic AcidFatmir Faiku, Haxhere Faiku, Arben Haziri et al.Problem statement: In this study we examined the precipitation of Zn(II) ion in water solutions of ZnSO4.7H2O (1.10-2 and 5.10-3 mol L-1) with (2S)-2-aminobutanedioic acid (1.10--1.10-3 mol L-1) in constant ionic strength of 0.6 mol L-1 NaCl. We have determined the concentration region where we have found the clear solution and solid phase. The solid phase is analyzed by IR … …American Journal of Biochemistry and Biotechnology, Vol. 5, Issue 4 · 31 Dec 2009 · 7,154 accessesView PDFCite
Research ArticleOpen accessIn the abstractCo-Digestion of Palm Oil Mill Effluent and Refined Glycerin Wash Water for Chemical Oxygen Demand Removal and Methane ProductionA. Sulaiman, M. R. Zakaria, M. A. Hassan et al.Problem statement: Refined Glycerin Wash Water (RGWW) from the oleochemical industry contains high Chemical Oxygen Demand (COD) and requires proper treatment before disposal. Unfortunately the wash water also contains high concentration of sodium chloride (NaCl) that could cause inhibition to the normal biological treatment process. However, there is feasibility of co-digesting the RGWW and Palm Oil Mill Effluent (POME) for … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 7,937 accessesView PDFCite
Research ArticleOpen accessIn the abstractCharacteristics of a Novel Highly Thermostable and Extremely Thermophilic Alkalitolerant Amylase from Hyperthermophilic Bacillus Strain HUTBS71Farouk Al-Quadan, Hazem Akel, Rasha NatshiProblem statement: This study reported the purification and characterization of a novel highly thermostable alkaline amylase from a newly isolated Bacillus strain HUTBS71. Approach: The enzyme was purified using ammonium sulfate precipitation, ion exchange and gel filtration chromatography. Results: Maximum amylase activity (72 U mL-1) was obtained at 100°C after 10 min of incubation. The enzyme was purified 24 fold … …OnLine Journal of Biological Sciences, Vol. 9, Issue 3 · 30 Sep 2009 · 7,404 accessesView PDFCite
Research ArticleOpen accessIn the abstractSoret and Dufour Effects on Natural Convection Flow Past a Vertical Surface in a Porous Medium with Variable Surface TemperatureHassan A.M. El-ArabawyProblem statement: In this research the researchers studied and made an analysis to the heat and mass transfer characteristics of natural convection about a vertical surface embedded in a saturated porous medium with surface temperature distribution proportional to xλ by taking into account the diffusion-thermo (Dufour) and thermal-diffusion (Soret) effects. Approach: The governing partial differential equations were transformed into a … …Journal of Mathematics and Statistics, Vol. 5, Issue 3 · 30 Sep 2009 · 7,489 accessesView PDFCite
Research ArticleOpen accessIn the abstractCytotoxic and Antimicrobial Potential of Actinomycete Species Saccharopolyspora salina VITSDK4 Isolated from the Bay of Bengal Coast of IndiaK. Suthindhiran, K. KannabiranProblem statement: Although the diversity of marine Actinobacteria have been studied and biotechnologically exploited throughout the world, the studies on marine actinobacteria in Indian peninsula are largely unexplored. Of 9 maritime states in India, only 4 states have been extensively studied for the diversity of actinobacteria. Further, the studies on bioactive actinomycetes from saline soil are very scanty. In the … …American Journal of Infectious Diseases, Vol. 5, Issue 2 · 30 Jun 2009 · 11,447 accessesView PDFCite
Research ArticleOpen accessIn the abstractElectroosmotic Phenomena in Organic SoilsAfshin Asadi, Bujang B.K. Huat, M. M. Hassim et al.Organic soils or peat represent an accumulation of disintegrated plant remains which have been preserved under condition of incomplete aeration and high water content. In order to develop a fundamental understanding of electroosmotic phenomena in peat, initially microelectrophoresis studies were carried out to conceptualize the electrokinetic phenomena. Then electroosmosis experiments were conducted on rigid cube samples containing 0.0001 M NaCl-water … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,103 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Electrochemical Investigation of the Redox Properties of Murexide in Aqueous and Non-Aqueous MediaHossnia S. MohranKnowledge of solvent effects on the redox properties of Murexide (Mu) is important for understanding its role as an electron acceptor in analytical and inorganic chemistry. In the present study, an investigation of the electrochemical behavior of the compound by both Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) in both aqueous and non-aqueous solutions was undertaken. It is suggested … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,741 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy on Salivary Glands α-amylase In Wheat Bug Eurygaster maura (Hemiptera: Scutelleridae)Mohammad Mehrabadi, Ali R. Bandaniα-amylase activity in the salivary glands of Eurygaster maura was determined by biochemical experiments. Some of adult insect was collected and their salivary glands isolated and characterized. Enzyme samples from salivary glands of adults were prepared by the method of Cohen with slight modifications. α-Amylase activity was assayed based on Bernfeld method by the dinitrosalicylic acid (DNS) procedure. The activity … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,648 accessesView PDFCite