Results 181 to 190 of about 152,823 (233)
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Man and Altitude

American Industrial Hygiene Association Journal, 1966
Abstract The William P. Yant Memorial Award was established shortly after the death of Dr. Yant and was presented for the first time in 1965. The 1966 Yant Award, the second such presentation, was given to Dr. Alberto Hurtado, Research Director of the High Altitudes Research Institute, Peruvian University of Medical and Biological Sciences. Dr. Hurtado'
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The Eye at Altitude

2006
High altitude retinopathy (HAR) was first described in 1969 as engorgement of retinal veins with occasional papilloedema and vitreous hemorrhage. Since then various studies have attempted to define the incidence, etiology and significance of this phenomenon, usually with small numbers of subjects. Recently studies on relatively large groups of subjects
Daniel S, Morris   +7 more
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Altitude Illness

Emergency Medicine Clinics of North America, 1984
Altitude illness is a group of synergistic physiologic disturbances, each of which may occur alone but which more commonly occur together, with one dominating the clinical picture. Treated promptly, altitude illness is readily reversible with full recovery; procrastination may lead to death or disability.
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Ileus at Altitude

High Altitude Medicine & Biology
Ebert-Santos, Christine, and Ana Campos. Ileus at altitude. High Alt Med Biol. 25:342-344, 2024.-Autoimmune myasthenia gravis (MG) is a condition commonly caused by the production of antibodies that block acetylcholine receptors. Until recently, gastrointestinal (GI) symptoms were considered rare in myasthenia gravis, but are now being proposed as an ...
Christine Ebert-Santos, Ana Campos
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ALTITUDE AND FERTILITY

Obstetrical & Gynecological Survey, 1976
Evidence frorn physiological studies indicates that hypoxia may act as a stress that reduces fecundity; and in human populations resident at high altitude there is evidence of reduced fe~i1ity (James, 1966). In this paper the fertility ofhigh Andean populations is described with reference to the ecological and social contexto An analysis of high Andean
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Altitude and paraganglioma

Annales d'Endocrinologie
The relationship between altitude and the development of paragangliomas (PGLs), rare tumors within the sympathetic nervous system has been suggested since the early 1970's. Here, we discuss how altitude, marked by lower barometric pressure and hypoxia (reduced oxygen partial pressure), may influence cancer rates.
Julie, Sanceau   +2 more
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Altitude illnesses

Nature Reviews Disease Primers
Millions of people visit high-altitude regions annually and more than 80 million live permanently above 2,500 m. Acute high-altitude exposure can trigger high-altitude illnesses (HAIs), including acute mountain sickness (AMS), high-altitude cerebral oedema (HACE) and high-altitude pulmonary oedema (HAPE). Chronic mountain sickness (CMS) can affect high-
Gatterer, Hannes   +5 more
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High-altitude medicine

The Lancet Respiratory Medicine, 2012
Abstract Medical problems occur at high altitude because of the low inspired Po2, which is caused by the reduced barometric pressure. The classical physiological responses to high altitude include hyperventilation, polycythemia, hypoxic pulmonary vasoconstriction–increased intracellular oxidative enzymes, and increased capillary ...
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High altitude laboratories

Physics Today, 1950
Science has always been international, and where it has flourished it has been nurtured by the contributions of men from all nations. High altitude laboratories similarly are especially beneficial if they are organized on an international basis. High altitude laboratories can serve the scientific community in many ways.
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Altitude Sensing for Automatic Altitude Reporting

IRE Transactions on Aeronautical and Navigational Electronics, 1961
A short resume is given of the means used to measure altitude for reporting purposes, possible sources of error, followed by a description of three of the most commonly used analog-digital converters.
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