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330 results for “Exposure”
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Research ArticleOpen accessIn the abstractAerosol Filtration Using Quartz Sand FilterAbbas H. Sulaymon, Yasmen A. MustafaThe cement industry is the major source of cement dust which contains heavy metals like nickel, cobalt, lead, chromium, arsenic and hazardous substances like dioxins and furans. Exposure to these substances can cause health problems to human, animals and vegetation. A continuous pilot scale quartz sand filter was constructed and uses to study the effect of important design parameters (temperature, … …American Journal of Environmental Sciences, Vol. 8, Issue 4 · 20 Jun 2012 · 7,722 accessesView PDFCite
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 abstractOlive Wastewaters' Impact on Oued Boufekrane in Meknes-TafilaletMajdouline Larif, Abdelmajid Soulaymani, Mohammed Hnach, Azzedine ElmidaouiProblem statement: Water quality of river Boufekrane is subject to heavy pollution exerted by population growth and industrial activity, including the OMW from the olive industry in which the presence of polyphenols and toxic effect dominant character may generate a higher organic pollution. Approach: Our objective is to "study the impact of OMW by analyzing the physicochemical parameters on seven … …American Journal of Environmental Sciences, Vol. 8, Issue 3 · 20 Apr 2012 · 7,519 accessesView PDFCite
Research ArticleOpen accessIn the abstractHepatic and Renal Histological Alterations Induced by Topical Hydroquinone AdministrationBashir M. Jarrar, Maher M. Alenezi, Abdullah Al-Hiri, Yazun JarrarProblem statement: Although the regulatory agencies of the United States and Europe banned hydroquinone in cosmetics skin lightening but it is still used in most of Middle East countries, including Saudi Arabia. Few studies were carried out on the histological alterations of hydroquinone on kidney and liver. Approach: The present study was carried out to investigate the histological alterations in … …American Journal of Pharmacology and Toxicology, Vol. 7, Issue 1 · 7 Apr 2012 · 9,655 accessesView PDFCite
Research ArticleOpen accessIn the abstractAphrodisiac Activity of Kaempferia parvifloraJintanaporn Wattanathorn, Prasert Pangphukiew, Supaporn Muchimapura et al.Problem statement: The increasing prevalence of sexual dysfunction and the limitation of therapeutic efficacy nowadays give rise to the requirement of novel therapeutic strategy. Kaempferia parviflora or Krachai-Dun has been long term used in Thai traditional folklore to treat this condition. Unfortunately, no scientific document is available until now. Therefore, this study was undertaken to determine the effect of this … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 2 · 9 Mar 2012 · 10,482 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Impact of Helicobacter Pylori Infection on Lung Function and Severity of Bronchial Hyperresponsiveness in Subjects with Allergic AsthmaJordan B. Minov, Jovanka Karadzinska-Bislimovska, Kristin Vasilevska et al.Problem statement: There is evidence that Helicobacter pylori (H. pylori) infection may modify immune response and decrease the risk of asthma and other allergic diseases, as well. Approach: To assess the impact of H. pylori infection on lung function parameters and severity of Bronchial Hyperresponsiveness (BHR) in subjects with allergic asthma. A cross-sectional study including 38 H. pylori positive subjects … …American Journal of Immunology, Vol. 7, Issue 4 · 29 Feb 2012 · 7,137 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Aluminium Chloride on Anxiety-Related BehaviourA.A. Buraimoh, S.A. Ojo, J.O. Hambolu, S.S. AdebisiProblem statement: Aluminium is presents in many manufactured foods, medicines and is also added to drinking water for purification purposes. It has the potential to be neurotoxic in human and animals but its contribution in Alzhemer’s disease remains contradictory. Anxiety affects one-eighth of the total population world-wide and has become an important area of research interest in psychopharmacology. Approach: The … …Neuroscience International, Vol. 2, Issue 2 · 27 Feb 2012 · 7,972 accessesView PDFCite
Research ArticleOpen accessIn the abstractApproaches to Learning in First Year University PhysicsRachel Wilson, Steve Georgakis, Manjula SharmaProblem statement: In recent decades, discipline specific ways of thinking and knowing have gained increased recognition in understanding learning. However, there has been little empirical research examining student approaches to learning within specific disciplines or, even more specifically, within different streams of study or in response to different curriculum within a discipline. Approach: The aim of this study was to … …Journal of Social Sciences, Vol. 8, Issue 2 · 25 Feb 2012 · 9,219 accessesView PDFCite
Research ArticleOpen accessIn the abstractVitamin 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 PDFCite
Research ArticleOpen accessIn the abstractDetermination of Lead in Human Teeth by Hydride Generation Atomic Absorption SpectrometryHassan T. AbdulsahibProblem statement: The determination of lead in human teeth at concentration levels of μg/ml is proposed using Hydride Generation Atomic Absorption Spectrometry (HG-AAS). To do this, 2% (wv) lanthanum chloride solution was employed as matrix modifying reagent to increase sensitivity and remove matrix interferences. Approach: About 100 μL of sample and 100 μL of 3.0% (m/v) NaBH4 are simultaneously injected … …American Journal of Environmental Sciences, Vol. 7, Issue 5 · 31 Oct 2011 · 7,136 accessesView PDFCite