نتایج جستجو برای: especially copper
تعداد نتایج: 471932 فیلتر نتایج به سال:
Chronic copper poisoning was investigated in ruminants within the Phalaborwa area of the Kruger National Park (KNP). Exposure of ruminants to environmental copper pollution resulting form copper smelting operations of a mine in the area was examined by comparing impala faecal copper concentrations in dung heaps and tissue (liver, lung and kidney) copper concentrations of organs collected from i...
Although electrochemical methods are one of the most efficient approaches for treating wastewater, type wastewater to be treated, electrode material employed, and polarity direction all significantly affect how well these systems work. The prospective application proposed materials purification slaughterhouse effluent has not been sufficiently explored in earlier studies, despite fact that (cop...
tepe sagzabad, a site situated on the qazvin plain of north-central iran, was excavated from 1970 to 1998 by the institute ofarchaeology of tehran university. recent excavations by h. tala’i (1997-1999) yielded some metal artifacts dating to theearly iron age. ten of these copper-based samples were investigated using inductively coupled plasma optical emissionspectroscopy (icp-oes), scanning el...
In this work, copper micropillars and copper-carbon nanotube (CNT) composite micropillars were fabricated by incorporating an electrodeposition technique with a xurography process. In order to disperse carbon nanotubes in copper-CNT micropillars, various amounts of CNTs were added to the electroplating bath. Surface morphology and phase characterization of copper micropillars and copper-CNT com...
OWEN, CHARLES A., JR., and JANE B. HAZELRIG. Copper deJi&nc~ and copper toxicify in the rat. Am. J, Physiol. 215(Z) : 334-338. I968.-Changes in metabolism of an intravexmusly injected tracer dose of 64Cu were measured in Sprague-Dawley rats subjected to copper loading, by addition of cupric acetate to the drinking water, or made copper deficient, by use of a milk-powder diet and copper-free wat...
Egypt. J. Psychiatry, Jan 2010; 30(1): 23-30 Background: Copper stimulates the diencephalons or old brain and its overall effect appears to enhance all emotional states in a human being. While, Zinc is needed for the new brain or cortex. This brain is associated with the “higher emotions” such as reasoning, compassion and love. Objectives: The aim of this paper is to estimate hair copper and zi...
Photosystem II (PSII) is the site of action of a large number of commercial herbicides and it is the site, where photoinhibition appears when plants are exposed to high light intensities. It is known that manganese, calcium and chloride ions are essential for optimal electron flow within PSII. Recently we have found that at very low concentrations (1-1.5 Cu 2+ / reaction center) copper improves...
Clinoptilolite is used as an adsorbent to remove heavy metal cations due its function a molecular sieve. This sieve characteristic has made it possible study the efficiency of clinoptilolite and D-Penicillamine in comparative way terms adsorption metals (especially copper) from biological medium. For this purpose, was subjected grinding produce homogenized micronized powder two sizes with d90=7...
An experiment was conducted using a total of 420, 1-d-old, Arbor Acres commercial male chicks to compare copper sulfate and tribasic copper chloride (TBCC) as sources of supplemental copper for broilers. Chicks were randomly allotted to 1 of 7 treatments for 6 replicates of 10 birds each and were fed a basal corn-soybean meal diet (11.45 mg/kg copper) supplemented with 0, 150, 300, or 450 mg/kg...
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