88 articles for “Environmental Changes”

Research ArticleOpen accessIn the abstractBioaccumulation of Arsenic by FungiAdemola O. AdeyemiProblem statement: Arsenic is a known toxic element and its presence and toxicity in nature is a worldwide environmental problem. The use of microorganisms in bioremediation is a potential method to reduce as concentration in contaminated areas. Approach: In order to explore the possible bioremediation of this element, three filamentous fungi-Aspergillus niger, Serpula himantioides and Trametes versicolor were investigated for … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,895 accessesView PDF Cite

Research ArticleOpen accessIn the abstractLow-Cost Encoding Device for Optical Code Division Multiple Access SystemMohammad Syuhaimi Ab-Rahman, Boonchuan Ng, Norshilawati Mohamad Ibrahim, Sahbudin ShaariProblem statement: Instead of using Fiber Bragg Grating (FBG) to develop the coded spectrums, which consist of expensive elements, the grating also are highly sensitive to environmental changes and this will contribute to the increment of capital and operational expenditures (CAPEX and OPEX). Approach: This study presented the development of low-cost 16-ports encoding device for Optical Code Division Multiple Access … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 7,644 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSpirulina protects against cadmium-induced hepatotoxicity in ratsAmr Amin, Alaaeldin A. Hamza, Sayel Daoud, Waleed HamzaCadmium (Cd) is an environmental and industrial cumulative pollutant that most affects many organs specially the liver. The protective effect of Spirulina, filamentous blue green algae, on Cd – induced oxidative stress and hepatotoxicity was evaluated in male rats. Oral administration of water extract of Spirulina for seven days followed by an acute toxic dose of Cd (3.5 mg kg … …American Journal of Pharmacology and Toxicology, Vol. 1, Issue 2 · 30 Jun 2006 · 11,537 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMethyltert-butyl Ether (MTBE) Degradation by a Microbial ConsortiumS. B. Mortazavi, A. Nikpey, A. Rezaee et al.Methyl tert-butyl ether (MTBE) is added to reformulated gasoline to meet the 1990 Clean Air Act directives. Widespread use of MTBE in gasoline has resulted in groundwater contamination. Because of its undesirable effects on drinking water and ecologically harmful effects, MTBE removal has become a public health and environmental concern. In this study, we have isolated a mixed bacterial culture … …American Journal of Environmental Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 7,004 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordInvestigation of Changes in the Structure of Isfahan City in Ancient Texture, IranParisa Ashrafi, Kaveh Ostad-Ali-Askari, Amir-Hossein Ashrafi et al.The structure of a city can be affected by many factors, such as environmental, economic, social, political, dominant intellectual parties and urban patterns of the world. Textural-spatial structure of the city is resultant of all forces that causes a settlement forms or constructed and has objective and subjective impressions. Development of the city had a descending and ascending trend, due … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 2 · 19 May 2020 · 7,260 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordAssessment of the Role of Oil and Gas Production Complex in Anthropogenic Changes in Vegetation in Mangystau RegionLyudmila Pavlichenko, Espolayeva Aikerim, Aliya Aktymbayeva, Iztayeva AzizaThe article includes the detailed description of a simplified method of solving the integrated environmental assessment inverse problem. The method was developed by the authors on the basis of using ready map of expert specific environmental assessment of anthropogenic transformation of vegetation in Mangistau region. The first part of the methodology is aimed on obtaining concrete actual evidence which is … …American Journal of Environmental Sciences, Vol. 13, Issue 2 · 5 May 2017 · 7,241 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordVitamin E Mitigates Chronic Chlorpyrifos-Induced Oxidative Changes in Pituitary Glands and Testes in Wistar RatsM. Shittu, J. O. Ayo, S. F. Ambali et al.Problem statement: The sperm counts of men have declined by about 50% in the last few decades. The contribution of environmental contaminants to this decline cannot be overemphasized. Pesticide is one of the most pervasive environmental chemical contaminants that have been of increased use due to the compelling need to feed the ever-growing world human and animal population and protect … …American Journal of Applied Sciences, Vol. 9, Issue 1 · 19 Nov 2011 · 7,315 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordDesalination leading to Salinity Variations in Kuwait Marine WatersAhmad E. Al-DousariProblem statements: The salinity of seawater is a critical issue for desalination process. Approach: The salinity changes in the coastal waters of Kuwait due to large scale power and desalination activity were evaluated. Results: Systematic sampling campaigns were planned to cover the uptake and outfall of the desalination plant spreading evenly the sampling points to cover the freshwater input zone … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,110 accessesView PDF Cite