نتایج جستجو برای: industrial minerals
تعداد نتایج: 168702 فیلتر نتایج به سال:
groundwater is the most widely distributed resource of the earth and groundwater quality evolves rapidly as it passes through the subsurface pathways within the unsaturated zone. increasing urbanization and anthropogenic activities have added to the problem of deficient amount of good quality groundwater. the study area is an industrial hub for textile sector. textile production, particularly d...
Mafic–ultramafics complexes are crucial for their tectonic implication, upper mantle condition, and hosting industrial minerals in a region. This study aims to highlight characterize the mafic–ultramafic rocks of Logar Ophiolite Complex using integration geospatial technology field data. The spatial distribution ophiolitic complex was examined this mineralogical indices (MI), band ratio (BR), s...
Twenty-one minerals are considered to be nutritionally essential, or probably essential, to the animal. Depending on the quantities required by the animal, they can be grouped into major minerals and trace (minor) elements. Of the major minerals the most important are calcium, phosphorus, sodium, chlorine, potassium, sulphur and magnesium. The important trace elements are copper, cobalt, iron, ...
In Brazil, there is a steadily increasing offer and demand for products on the basis of vitamins and minerals. According to Brazilian law, the differences in the dosages offered to the consumer in each product are the parameter for its classification as alimentary supplement or medicament. The limit between these two concepts, however, is confusing and lacks clearness. Considering the risk pose...
Minerals are very important nutrients for dairy animal production. Deficiency of minerals may leads to certain structural, physiological or immunological disorder affecting growth, production and reproductive health of animals. Minerals deficiency is an area specific problem and supplementation strategy must be revised accordingly. Requirements of minerals for reproduction and immunity are gene...
Trace minerals such as zinc, copper, and manganese are essential cofactors for hundreds of cellular enzymes and transcription factors in all animal species, and thus participate in a wide variety of biochemical processes. Immune development and response, tissue and bone development and integrity, protection against oxidative stress, and cellular growth and division are just a few examples. Defi...
There has been considerable recent interest in the suggestion that mineral fibres other than asbestos might be associated with mesotheliomas in the pleural and peritoneal cavities. Compared with the wealth of information on the consequences of exposure to asbestos, information about the effects of other fibrous minerals is sparse and much of it is of a preliminary nature. In this editorial the ...
Strong evidence for evaporitic sulfate minerals such as gypsum and jarosite has recently been found on Mars. Although organic molecules are often codeposited with terrestrial evaporitic minerals, there have been no systematic investigations of organic components in sulfate minerals. We report here the detection of organic material, including amino acids and their amine degradation products, in ...
There has been considerable recent interest in the suggestion that mineral fibres other than asbestos might be associated with mesotheliomas in the pleural and peritoneal cavities. Compared with the wealth of information on the consequences of exposure to asbestos, information about the effects of other fibrous minerals is sparse and much of it is of a preliminary nature. In this editorial the ...
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