نتایج جستجو برای: heavy
تعداد نتایج: 125133 فیلتر نتایج به سال:
a Departamento de Óptica y de Optometría y Ciencias de la Visión, Grupo de Investigación en Superficie Ocular, Córnea y Lentes de Contacto ‘‘Miguel F. Refojo’’, Universidad de Valencia, Spain b Departamento de Termodinámica Aplicada, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Valencia, Spain c Universidad De Oviedo, Director del Instituto Universitario Ferná...
pollution of water and soils by heavy metals is an emerging problem in industrialized countries.the present study was conducted to investigate the heavy metals concentration in water and sedimentsamples from ship breaking sites of sitakunda to assess the potential ecological risk posed by heavy metalusing different methods. heavy metals concentration was analyzed by atomic absorption spectrosco...
Background and purpose: Heavy metals in urban air are major health threats and increase the risk of respiratory, cardiovascular, and cancers in humans. An efficient and low-cost method for monitoring these pollutants is using tree bark as a bioindicator. The purpose of this study was to measure the concentration of heavy metals by pine tree bark as a bioindicator in Neishabur, north-east of Ira...
BACKGROUND Not much is known about how much geographical units matter for heavy alcohol consumption and how much of the geographical variations are explained by characteristics such as institutional alcohol policies and regional economic conditions. The study aim was to address these gaps considering three types of heavy alcohol consumption. METHODS Analyses were based on data collected on 58...
We report here the complete sequence of the γ dynein heavy chain of the outer arm of the Chlamydomonas flagellum, and partial sequences for six other dynein heavy chains. The γ dynein heavy chain sequence contains four P-loop motifs, one of which is the likely hydrolytic site based on its position relative to a previously mapped epitope. Comparison with available cytoplasmic and flagellar dynei...
I review heavy quarkonium physics in view of recent experimental results. In particular, I discuss new results on spin singlet states, photon and hadronic transitions, D−states and discovery of yet unexplained narrow X(3872) state. 1 Quarkonia Quarkonium is a bound state of a quark and its anti-quark. Some properties of light and heavy quarkonia are compared to properties of positronium in Tabl...
Working Group Members: A. Abashian, Y. Arad, V. Barger, B. Barnett, D. Berley, C. Bromberg, C. Buchanan, J. Butler, L. Chau, J. Collins B. Cox, N. Deshpande, I. Dunietz, G. Feldman, F. Gilman, N. Glover, T. Gottschalk, G. Hanson, D. Hedin, S. Heppelmann, L. Jones, D. Judd, H. Kagan, J. Merlo, B. Milliken, M. Mishina, D. Morris, A. Odian, F. Paige, R. Panvini, L. Price, J. Ralston, D. Reeder, R....
background the amount of effective ingredient production in plants is influenced by various climatic and environmental factors such as quality of water resources, soil quality, air quality, and the level of environmental pollutants. objectives in this research, we seek to study and analyze the qualitative effects of heavy metals on the respiratory organ of rosemary. further, we will compare the...
introduction: biosorption of heavy metals can be an effective process for the removal of heavy metal ions from aqueous solutions. also, living lichens are known to accumulate metals across their surface. materials and methods: in this study, the biosorption of cadmium ions cd (ii) by the lichens acarospora strigata, lecanora muralis and caloplaca aurantia was investigated in aqueous solution in...
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