نتایج جستجو برای: toxic and essential elements
تعداد نتایج: 16884622 فیلتر نتایج به سال:
background: cadmium (cd) is not considered as essential element for living organisms, therefore its presence in tissues is considered as toxic element. from food hazards control point of view, information on the distribution of these toxic elements in the animal tissues is very important. the present study was designed to evaluate cd distribution pattern in kidney and liver of broiler chicken. ...
the study of regional variations and the anthropogenic contamination by trace toxic elements of soils is very important for environmental planning and monitoring in urban areas. soil, sediment and rocks of urban areas of kerman studied to assess the degree of pollution by trace elements as a consequence of anthropogenic sources. 37 samples were collected and analyzed by icp-ms for 29 elements. ...
This paper describes a preliminary study of the adsorption of toxic elements from synthetic wastewater in a batch mode. Clay minerals have been highly considered as inexpensive available adsorbents that adapt with the environment due to a special level and a high potential of adsorption. In the present research work, low-cost natural minerals of speiolite from the Iliato mine (located in NE Ir...
objective high concentration of iron and other trace elements could restrict bacterial growth and modify their metabolic pattern as well. however, this study aimed to find out the influence of iron, chromium, cadmium and synergism or antagonism between these elements on the growth of a gram positive bacterium. materials and methods in a series of experiments, bucillus cereus was cultured in a n...
The immune system (immunoglobulins, cell mediated immunity, phagocytosis complement, lysosomes, interferon, metabolic function, hormones, metabolic and respiratory alkalosis) is the natural mechanism which defends against cancer. Trace elements zinc, selenium, molybdenum, and manganese augment this natural mechanism. Zinc is essential for normal development and maintenance of the thymus. Reduce...
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