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Altitude sickness and altitude adaptation [PDF]
For as long as humanity can recall, it has probably been a dream of mankind to conquer mountainous heights and the mysterious deep. Loss of innocence is a common theme across ancient religions. Ancient Hindu legend has an interesting variation on the story: When Brahma realized that man did not deserve divinity, he decided to take it from them and hide
Pontus B. Persson, A. Bondke Persson
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Summary points: Altitude related illness is rare at altitudes below 2500 metres but is common in travellers to 3500 metres or more. The occurrence is increased by a rapid gain in altitude and reduced by a slow ascent, allowing time for acclimatisation. For most travellers, altitude related illness is an unpleasant but self limiting and benign syndrome,
Barry, P, Pollard, A
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Behavioural and physiological adaptations to low-temperature environments in the common frog, Rana temporaria [PDF]
<b>Background</b><p></p> Extreme environments can impose strong ecological and evolutionary pressures at a local level. Ectotherms are particularly sensitive to low-temperature environments, which can result in a reduced activity
Biek, Roman+2 more
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IN NATURE, vol. xxvii. p. 176, you notice the remarkable warm and dry weather September 21 last on Ben Nevis, during an anticyclone, and, as at the foot the air was relatively cold and humid, you see in the heat and dryness on the mountain an effect of descending air currents.
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Editor,—In the early sixties I established a record for the running ascent of Kilimanjaro (19 340 feet (5985 m)) of 6 hours and 48 minutes, and my colleague (and current London marathoner) Norman Myers ran …
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Introduction The aims of this article are to outline the physiology of high altitude, the treatment of altitude illness and to describe opportunities for further education in mountain medicine. Human difficulty with the rarefied air at high altitudes has been recognised since ancient times.
Davis, P+4 more
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Summary In studies concerned with the performance at high altitude it is often not possible to separate the effects which are due to hypoxia from those associated with the stress of ascent. Some of the basic observations concerning exercise at high altitude are reviewed and a study is described which was designed to simulate the physical
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A long-standing, unanswered question regarding Euclid's Elements concerns the absence of a theorem for the concurrence of the altitudes of a triangle, and the possible reasons for this omission. In the centuries following Euclid, a remarkable number of proofs have been put forward; this suggests a search for the most elementary and direct proof.
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IN NATURE of August 7, 1913 (vol. xci., p. 584), a short account was given of my auroral expedition of 1913. I think, therefore, that the accompanying preliminary result of the determination of altitude (Fig. 1) will interest your readers. More details will soon be published in the Comptes rendus of the Paris Academy of Sciences, in the Astrophysical ...
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1. Six international middle‐distance runners were investigated during 4 weeks in England and during a similar period in Mexico City (2270 m (7450 ft.))2. In 3‐mile (4828 m) time trials at 2270 m the increase in time taken by four subjects compared with sea level was 8·5% on the 4th day and 5·7% on the 29th day.
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