منابع مشابه
Respiration at High Altitudes *
It has been clearly recognized that a low barometric pressure, when first encountered, may interfere with the normal workings of the human machine, but that later by compensatory responses the body may become adapted to the new conditions. The outstanding variable encountered in ascents to high altitudes by airplane, dirigible, free balloon, or mountaineering is the tenuousness of the atmospher...
متن کاملKala-Azar at High Altitudes
Sir,?Major P. Savage, i.m.s., in the June number of your journal lias recorded the apparent occurrence of indigenous kala-azar at Sanawar in the Simla Hills, where up to that time the presence of Phlcbotomus argcntipcs, the suspected carrier of kala-azar, had not been reported. It is, therefore, of interest to note that in a collection of Phlcbotomus from Sanawar village, kindly given me by Cap...
متن کاملMetal layers at high altitudes
Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract In the past, many studies have been carried out to demonstrate the influence of me-teoroids on the atmospheric metal layer, observed roughly in the altitude range 80– 105 km. Even with the capability of present day resonance lidars to measure metal densit...
متن کاملElectrocardiographic patterns in man at high altitudes.
Electrocardiograims of healthy men both native and long-term residents at 14,900 feet above sea level have been obtained and classified according to their dominant pattern. Most of the tracings showed signs of either right ventricular hypertrophy or right bundle-branch block, incomplete and complete. Some of the mechanisms responsible for these electrocardiographic changes found at high altitud...
متن کاملElectron Beam Experiments at High Altitudes
Experiments with the electron gun on the SCATHA satellite produced evidence of beam-plasma interactions, and heating of the low energy electrons around the satellite. These experiments were conduct ed near geosynchronous orbit, in the dusk bulge, and plasma sheet, with one short operation in the lobe regions, providing a range of ambient plasma densities. The electron gun was operated at 50 eV,...
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ژورنال
عنوان ژورنال: BMJ
سال: 1985
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.291.6487.56-c