نتایج جستجو برای: high altitudes
تعداد نتایج: 2061974 فیلتر نتایج به سال:
BACKGROUND Anemia refers to a condition having low hemoglobin concentration. Anemia is considered a major risk factor for unfavorable pregnancy outcomes. This is the first study describing the pattern of hemoglobin concentration during pregnancy and its relationship to areas of high and low altitudes in Balochistan (the largest of Pakistan's four provinces). The main objective of this study was...
Large area ratio nozzles that are employed for space propulsion applications not meant to be tested at the ground-level conditions because of flow occurs in their divergent section due low exhaust pressures. Therefore, it is desired perform experimental evaluation high-altitude evaluate performance said nozzles. Generally, a test facility, consisting supersonic diffuser, generally employed. In ...
4,eOO m in a hypobaric chamber under ambient temperatures of 16°C , 20"C, 24°C and 28°C . Oxygen uptake (Vo2), cardiac output (Q ; C02 rebreathing method), arteriovenous 02 difference (AVOD), heart rate (HR), and stroke volume (SV) were rneasured during two successive submaximal exercises after 2 hours of exposure. Vo2 and SV at high altitudes were similar to those at sea level. Q and HR at a g...
E RYTHROPOIESIS may be investigated by studying various aspects of iron metabolism in the developing erythrocytes. In such a study, the use of radioactive iron is of great assistance in following the iron from the time it is absorbed through the digestive system until it appears in the hemoglobin of the red blood cells. It is also possible to administer labelled iron intravenously and to study ...
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