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4,883 articles for “CompA”
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Research ArticleOpen accessIn the abstractEffects of 50 HZ Magnetic Field on Some Factors of Immune System in the Male Guinea PigsH. Sedghi, S. Zare, H. Hayatgeibi et al.This study investigated the bio-effects of 50 Hz MF exposure on some Immunological factors (ACTH, cortisol and glucose levels) in male Guinea pigs. The capacity of 50 Hz Electromagnetic Fields (EMF) to interfere in the weakness of endocrine system has been a relevant fact into the scientific community, since we are more susceptible for this kind of exposure, in modern … …American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 7,997 accessesView PDFCite
Research ArticleOpen accessIn the abstractApplication of Rainfall-runoff Models to Zard River Catchment'sM. B. Rahnama, G. A. BaraniRainfall-runoff models are nonlinear processes according to the sequential and spatial distribution of the rainfall. So, it is difficult to explain the response of catchments systems with the simple models. In the present work simulation of the rainfall-runoff processes have been carried out by the Artificial Neural Networks (ANN) and the HEC-HMS models. The ANN models of Multi Layer Perceptron … …American Journal of Environmental Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 6,528 accessesView PDFCite
Research ArticleOpen accessIn the abstractStatistical Verification of Folk Medicinal Potentiality of Wild Dicot Aquatic Plants in JordanS. Al-Qura'nThis study describes a floristic study of Jordan with its environs. The study was carried out during 2001-2003 and 287 aquatic dicot samples were collected and photographed in the field. After the identification of the specimens, the total wild aquatic dicot species have been determined as 87 species belonging to 59 genera and 33 plant families were presented in investigated … …American Journal of Environmental Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 6,478 accessesView PDFCite
Research ArticleOpen accessIn the abstractPhotovoltaic Technology of Electricity Generation for Desert CampingShafiqur Rehman, Ali A. Shash, Omar S. Baghabra Al-AmoudiThis study presents a case study on the utilization of global solar radiation data on horizontal surface to perform economical feasibility of using Photovoltaic (PV) panels with battery backup to meet a small load for a camping site in Saudi Arabia. The analysis considers three scenarios with daily average energy demands of: (i) full load, (ii) 75% load and (iii) … …American Journal of Environmental Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 6,922 accessesView PDFCite
Research ArticleOpen accessIn the abstractField and Laboratory Suction- Soil Moisture Relationship of Unsaturated Residual SoilsBujang B.K. Huat, Faisal H. Ali, A. AbdullahSoils located above the groundwater table such as residual soils are generally unsaturated and possess negative pore-water pressures. A soil-water (moisture) characteristic curve (SWCC) that relates the water content of a soil to matric suction is an important relationship for the unsaturated soil mechanics. The SWCC essentially shows the ability of an unsaturated soil to retain water under various matric … …American Journal of Environmental Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 7,038 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Role of Groundwater Vulnerability in Urban Development PlanningJ. Nouri, S. MalmasiGroundwater resources in most places of Iran are considered to be one of the important drinking water supplies for civilians. In city of Tehran, 25% of drinking water is being supplied from groundwater. This fact would enforce the requirement to protect and conserve groundwater resources in the city for its further development plan. Municipality of Tehran, District-22 has been designed … …American Journal of Environmental Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 6,974 accessesView PDFCite
Research ArticleOpen accessIn the abstractCorrelation between Tissue and Released VEGF Levels in Urine of Bladder Cancer PatientsMenha Swellam, Abdulla A.A. El-AalPurpose. Angiogenesis is a complex multistep process essential for tumor growth. Vascular endothelial growth factor (VEGF) is a potent endothelial cell mitogen and vascular permeability-inducing agent. The aim of this study was to analyze whether tissue and urinary VEGF levels of bladder cancer patients are correlated and study their correlation with classical clinicopathological parameters and bilharizial bladder cancer patients. The … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,639 accessesView PDFCite
Research ArticleOpen accessIn the abstractAntioxidant, Free Radical Scavenging and Metal Chelating Characteristics of PropolisHikmet Geckil, Burhan Ates, Gokhan Durmaz et al.This study was undertaken to determine the reducing characteristics, metal chelating capability, anti-lipid peroxidative and antiradical properties of propolis compared to two widely used artificial antioxidants, Butylated Hydroxyanisole (BHA) and Butylated Hydroxytoluene (BHT). The water and ethanol extracts of propolis showed significantly a different degree of metal chelating, radical scavenging activity and reducing power. In general, ethanol extracts of propolis … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 9,088 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Transcript Labeling Techniques and Development of a Membrane-based Parallel Gene Expression AssayMark A. Fisher, Bonnie B. Plikaytis, Thomas M. ShinnickAn inexpensive alternative to micro arrays was developed to examine the expression of small sets of genes in parallel and used to compare direct and indirect transcript labeling methods. Psoralen-biotin direct labeling was ~10-fold less sensitive than reverse transcriptase-biotin-dUTP labeling, but the enzymatic method generated higher levels of background noise in miniarray hybridizations. The reproducibility of hybridization intensities was the … …American Journal of Biochemistry and Biotechnology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,868 accessesView PDFCite
Research ArticleOpen accessIn the abstractSpectrofluorimetric, Atomic Absorption Spectrometric and Spectrophotometric Determination of Some FluoroquinolonesHesham SalemSimple, accurate, sensitive and selective spectrofluorimetric, atomic absorption spectrometric and spectrophotometric methods are described for the quantitative determination of ten fluoroquinolones (amifloxacin, ciprofloxacin hydrochloride, difloxacin hydrochloride, enoxacin, enrofloxacin, lomefloxacin hydrochloride, levofloxacin, norfloxacin, ofloxacin and pefloxacin mesylate). The first method was a spectrofluorimetric method in which samples of the studied drugs in 0.1 N H2SO4 showed native fluorescence at 450 nm … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 7,317 accessesView PDFCite