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Research ArticleOpen accessIn the abstractDetermination of Heavy Metals and Other Elements in Artisanal Gold Mining SoilsS. Girigisu, I. G.E. Ibeanu, D. J. Adeyemo, S. OkohProblem statement: The possible exposure of heavy elements to life as a result of artisanal gold mining activities can be of great concern because of its associated effect on health. Approach: Soil samples from the artisanal gold mining sites of Awwal and Bagega villages in Kebbi and Zamfara states of Nigeria were collected and analyzed for heavy and other elements … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 14 May 2012 · 7,191 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation and Beneficiation of Bentonitic Clays from Pindiga Formation in Benue TroughB. B.M. Dewu, I. I. Funtua, M. O.A. Oladipo et al.Problem statement: This study aimed at evaluating and beneficiating Bentonitic clays of Pindiga Formation from the upper Benue trough in northeastern Nigeria to meet the standard required for use in oil well drilling. This will reduce the dependence on imported Bentonite into the country, increase foreign exchange, improve the country’s economy and create employment opportunities. Approach: Three clay samples from … …American Journal of Engineering and Applied Sciences, Vol. 4, Issue 4 · 16 Jan 2012 · 8,570 accessesView PDFCite
Research ArticleOpen accessIn the abstractVertical Profile of C, N, P, K and Radionuclides in Soil Collected from Highland Tea Plantation AreasZaini Hamzah, Seh Datul Riduan, Ahmad SaatProblem statement: Cameron Highlands is a well known agricultural area in Peninsular Malaysia. Long term usage of fertilizer has caused accumulation of major elemental component in the soil. This accumulation will cause enrichment of the nutrient in the catchment located at downstream of the river through runoff. Approach: Two tea plantations on the upstream with hilly condition plantation were selected … …American Journal of Applied Sciences, Vol. 8, Issue 12 · 11 Oct 2011 · 7,513 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermination of Sediment Profile for 210Pb, Pb, U and Th from Sultan Abu Bakar Dam Due to Soil Erosion from Highland Agriculture Area, Cameron Highlands, MalaysiaZaini Hamzah, Seh Datul Riduan, Ahmad SaatProblem statement: Sultan Abu Bakar Dam in Cameron Highlands act as a catchment’s to accumulate all eroded soil carried by the run off flow through Bertam River, the main river that passes through the highland agriculture area. All suspended solid that carried out by the river contain various kind of hazard potential to the environment. U, Th and Pb are … …American Journal of Environmental Sciences, Vol. 7, Issue 3 · 12 Jul 2011 · 7,241 accessesView PDFCite
Research ArticleOpen accessIn the abstractEquilibrium Kinetics and Isotherm Studies of Cu (II) Adsorption from Waste Water onto Alkali Activated Oil Palm AshZaira Zaman Chowdhury, Sharifuddin Mohd. Zain, Rashid Atta Khan, Abdulbari Abdulrahman AhmedProblem statement: Heavy metal accumulation in waste water could affect aquatic life, human health and overall ecosystem adversely. Therefore, in recent years much emphasis has been given for the use of industrial waste material as low cost adsorbents for removal of metallic contaminants from waste water. Approach: Present study deals with the adsorption equilibrium and kinetics of Cu (II) cation … …American Journal of Applied Sciences, Vol. 8, Issue 3 · 25 Mar 2011 · 7,939 accessesView PDFCite
Research ArticleOpen accessIn the abstractExtraction and Purification of Collagenase Enzymes: A Critical ReviewSaid M Daboor, Suzanne M Budge, Abdel E Ghaly et al.Problem statement: Enzymes have vital roles in several industrial processes (foods, cosmetics, nutraceuticals and pharmaceuticals) due to their highly selective nature and high activity at very low concentrations. Recent efforts to identify new sources of useful enzymes have been concentrated on the marine environment because of the potential to make use of processing wastes. About 35-50% of the mass of … …American Journal of Biochemistry and Biotechnology, Vol. 6, Issue 4 · 31 Dec 2010 · 14,320 accessesView PDFCite
Research ArticleOpen accessIn the abstractRare Earth Elements and Geochemical Partitioning of Zn and Pb in Sediments of an Urban RiverShaila Sharmin, H. M. Zakir, Naotatsu ShikazonoProblem statement: Urban river sediment pollution due to Zn and Pb is a serious problem in all over the world. The source and level of Zn and Pb pollution in sediments of Nomi River of Ota Ward, one of the most industrialized areas in Tokyo, Japan is still lacking. Approach: The present study focused on Rare Earth Elements (REEs) and … …American Journal of Environmental Sciences, Vol. 6, Issue 5 · 31 Oct 2010 · 6,969 accessesView PDFCite
Research ArticleOpen accessIn the abstractIsolation and Characterization of Thermophilic Cellulase-Producing Bacteria from Empty Fruit Bunches-Palm Oil Mill Effluent CompostAzhari Samsu Baharuddin, Mohamad Nafis Abd Razak, Lim Siong Hock et al.Problems statement: Lack of information on locally isolated cellulase-producing bacterium in thermophilic compost using a mixture of Empty Fruit Bunch (EFB) and Palm Oil Mill Effluent (POME) as composting materials. Approach: The isolation of microbes from compost heap was conducted at day 7 of composting process where the mixture of composting materials consisted of 45.8% cellulose, 17.1% hemicellulose and 28.3% … …American Journal of Applied Sciences, Vol. 7, Issue 1 · 31 Jan 2010 · 12,161 accessesView PDFCite
Research ArticleOpen accessIn the abstractP-Glycoprotein-Mediated Efflux and Drug Sequestration in Lysosomes Confer Advantages of K562 Multidrug Resistance Sublines to Survive Prolonged Exposure to Cytotoxic AgentsNathupakorn Dechsupa, Samlee MankhetkornProblem statement: Cellular drug resistance to anticancer agents is major obstacle in cancer chemotherapy and the mechanisms by which these MDR cells possess for protecting themselves to survive prolonged exposure to cytotoxic agents still debating. The study aimed to clarify the role of P-glycoprotein (Pgp) and enhanced drug sequestration in lysosomes to confer the multidrug resistance K562 cells with varied … …American Journal of Applied Sciences, Vol. 6, Issue 9 · 30 Sep 2009 · 7,508 accessesView PDFCite
Research ArticleOpen accessIn the abstractHard Coal Fly Ash and Silica-Effect of Fine Particulate Matter Deposits on Brassica chinensisChristian Ulrichs, Uwe Schmidt, Tanja Mucha-Pelzer et al.Problem statement: One focus in recent atmospheric pollution research is on fine Particle Matter (PM), especially as result of increasing traffic and anthropogenic activity in urban areas. Here, the impact on animal and human health has been in the center of many studies. Despite the fact that PM depositions can affect plants on the long term, there are only few … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 1 · 31 Mar 2009 · 8,650 accessesView PDFCite