نتایج جستجو برای: open pit
تعداد نتایج: 400946 فیلتر نتایج به سال:
Abstract Mining activity introduces severe changes in landscapes and, subsequently, land uses. One of the most singular is existence pit lakes, which occur active more frequently, abandoned mines. Pit lakes are produced by water table interception when open-pit mines deepen. Their characteristics highly variable, depending on type mine, environment or climate. In León province there a long trad...
background: sacral pit is a shallow or deep dimple in the lower sacral region, with a reported prevalence of 3-5% among newborns. the aim of the present study was to investigate spinal cord abnormalities in newborns with sacral pit via ultrasound examinations. methods: in this descriptive study, 3071 infants born at 34-42 weeks of gestation were studied in hospitals affiliated to islamic azad u...
OBJECTIVE Elevated serum phosphate has emerged as a major risk factor for vascular calcification. The sodium-dependent phosphate cotransporter, PiT-1, was previously shown to be required for phosphate-induced osteogenic differentiation and calcification of cultured human vascular smooth muscle cells (VSMCs), but its importance in vascular calcification in vivo and the potential role of its homo...
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