نتایج جستجو برای: rock products plant
تعداد نتایج: 704196 فیلتر نتایج به سال:
A remaining uncertainty in the U.S. cohort study of man-made vitreous fiber (MMVF) workers is whether asbestos exposure contributed to 10 questionable cases of mesothelioma. We report further details on one case from our previous mesothelioma investigation, including results of a recent lung tissue analysis. Case is a 68 year-old white male employed 1951-54 in a rock/slag wool plant where asbes...
39 The extracellular signal which triggers activation of rho-associated kinase (RhoA/ROCK), the major 40 molecular determinant of basal internal anal sphincter (IAS) smooth muscle tone in humans, is not 41 known. Using human IAS tissues, the presence of the biosynthetic machineries for Ang II, TXA2 and 42 PGF2α were identified. These end products of the renin-angiotensin system (Ang II) and ara...
Nearly one quarter of New Zealand’s unique vascular plant flora is threatened, and weed invasion is implicated in the decline of more than half of these threatened species. However, there is little experimental evidence showing that invasive weeds have a direct impact on threatened native plants. This study experimentally tested the hypothesis that competition with invasive weeds threatens the ...
The occurrence of vancomycin-resistant Staphylococcus aureus (VRSA) and multidrug-resistant (MDR) strains of this organism necessitate the discovery of new classes of anti-staphylococcal drug leads. At present there are no single chemical entity plant derived antibacterials used clinically, and this biologically diverse group deserves consideration as a source of chemical diversity for two impo...
The use of and search for drugs and dietary supplements derived from plants have accelerated in recent years. Ethnopharmacologists, botanists, microbiologists, and natural-products chemists are combing the Earth for phytochemicals and "leads" which could be developed for treatment of infectious diseases. While 25 to 50% of current pharmaceuticals are derived from plants, none are used as antimi...
INTRODUCTION .......................................................................................................................................................564 Brief History ............................................................................................................................................................565 MAJOR GROUPS OF ANTIMICROBIAL COMPOUNDS FROM PLANTS ......
[1] Spirit’s Mössbauer (MB) instrument determined the Fe mineralogy and oxidation state of 71 rocks and 43 soils during its exploration of the Gusev plains and the Columbia Hills (West Spur, Husband Hill, Haskin Ridge, northern Inner Basin, and Home Plate) on Mars. The plains are predominantly float rocks and soil derived from olivine basalts. Outcrops at West Spur and on Husband Hill have expe...
[1] Spirit’s Mössbauer (MB) instrument determined the Fe mineralogy and oxidation state of 71 rocks and 43 soils during its exploration of the Gusev plains and the Columbia Hills (West Spur, Husband Hill, Haskin Ridge, northern Inner Basin, and Home Plate) on Mars. The plains are predominantly float rocks and soil derived from olivine basalts. Outcrops at West Spur and on Husband Hill have expe...
The study of the role that fungi have played and are playing in fundamental geological processes can be termed 'geomycology' and this article seeks to emphasize the fundamental importance of fungi in several key areas. These include organic and inorganic transformations and element cycling, rock and mineral transformations, bioweathering, mycogenic mineral formation, fungal-clay interactions, m...
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