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Showing 1 to 12 of 12 for “"Mineral sources"”.
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An investigation of the absorption of alpha-rays emitted from thick mineral sources
Thesis. (M.S.) Massachusetts Institute of Technology. Dept. of Geology, 1947.
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Supplemental Trace Minerals (Zn, Cu, and Mn) as Sulfates or Hydroxy Trace Mineral Sources for Beef Heifers
… over a 2-yr period to determine the effects of mineral source on beef heifer development at 2 locations (n = 71 and n = 72, Fayetteville, blocks 1 and 4; n = 72 in each of 2 breeding groups, Batesville, blocks 2 and 3). Heifers were stratified based on initial BW, age, health, prior research …
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Mineral-Surface Chemistry of Hydroxyapatite and Urea-Rich Solutions
… of phosphorus, which is primarily found in solid mineral sources. Phosphorus in biological systems is significant through its involvement in metabolic functions (<em>e.g.,</em> Coenzyme A), cell structure (<em>i.e., </em>phospholipid membranes), and genetic storage/transfer (<em>i.e.,</em> …
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The Age and Fertility of Lignite Strip Mine Spoils from the Darco Mine, Harrison County, Texas
… basis. Gray materials appear to have greater mineral sources of zinc, iron, and sulfate than non-gray spoils, and greater concentrations of zinc, calcium, magnesium, and potassium at all sites. Further, older spoils (17 to 31 years of age) have mean pH values below 5.0, a more rapid decline in …
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Evaluation of modified montmorillonites in poultry diets
… if the modified MONTs would be bioavailable mineral sources. Cu-MONT ameliorated the growth depressing effects of AF, and the deleterious effects of AF on relative organ weights. Results suggest that Cu-MONT was partially effective in ameliorating the toxic effects of AF in broilers. Copper …
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Hacking Antarctica
… embroidered map of Antarctica showing sites of mineral sources and mineral pollution. The map was installed as an interactive instrument that allowed visitors to participate in the live shaping of the spatialization of sounds recorded in Antarctica. A digital Theremin sensor attached to the map …
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Synthesis and characterisation of low-cost biopolymeric/mineral composite systems and evaluation of their potential application for heavy metal removal
… problems faced in the world today. Anthropogenic sources of heavy metals, especially effluent from industries, are serious environmental and health concerns by polluting surface and ground waters. Similarly, on a global scale, thousands of tonnes of industrial and agricultural waste are discarded …
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The effects of zinc source and supplemental copper on growth performance, carcass characteristics, and morbidity and mortality of growing-finishing pigs raised under commercial conditions
… and tribasic copper chloride are relatively new mineral sources that are claimed to have improved bioavailability relative to commonly used zinc sources such as zinc oxide. Both sources were evaluated in two studies that were carried out to determine the effects of zinc source and supplemental …
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Microbial dynamics of bioleaching consortia
… in the availability of mined ores as primary mineral sources and a push towards more environmentally sustainable production in the mining sector, there has been an increased interest in the use of historic tailings and electronic wastes for metal retrieval. Bioleaching is considered a suitable …
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Trace mineral supplementation in cattle: Implications in heifer development, reproductive performance, and fetal programming
Minerals play numerous roles in the ruminant animal’s body and are included as components of bone, tissues, body fluids, enzymes, and hormones. Grazing cattle primarily receive trace minerals through forages; however, these sources often do not meet the trace mineral requirements of cattle due to …
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Phosphorus Pathways In Deep Time
… P in our Solar System is stored in the form of minerals. Phosphorus-bearing minerals preserve information on pressures and temperatures experienced both during their initial formation and across the subsequent reaches of geological time. These minerals act as useful tools for probing the …