Barometric Pressure
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. ANÁLISIS DE LA MAREA TERRESTRE GRAVIMÉTRICA EN LA ESTACIÓN SAN JUAN (ARGENTINA)
Gravity measurements at the San Juan station with a Scintrex Automated CG-5 gravity meter were analyzed in order to obtain the Earth tidal parameters of amplitude and phase-difference. The observations cover a total number of 35 days. This is the first tidal analysis based on gravity measurements for this location. The Tamura tidal development was used as no
Bol. Ciênc. Geod.. Publicado em: 2015-12
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2. Influência da pressão atmosférica no comportamento sexual dos insetos / Influence of atmospheric pressure on the sexual behavior of insects
Tempestades acompanhadas por diferentes combinações de ventos, chuvas, variações bruscas de temperatura e de radiação solar são manifestações climáticas frequentemente associadas com queda na pressão atmosférica. Para os insetos, especialmente os pequenos insetos, estas condições de mau tempo são desfavoráveis e podem acarretar alta mortalida
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/11/2011
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3. Caracterização batimétrica e fisicooceanográfica do canal de acesso ao porto de Cabedelo/PB: uma análise ambiental ao derrame de óleo
The State of Paraíba is one of the most dynamic states of Brazil, strategically located in the northeast, is notable for the excellent potential for integration of different transportation modes forming the states of Rio Grande do Norte, Pernambuco and Alagoas. The dynamic that occurs with port activity causes changes in the space where it is installed. And
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/06/2011
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4. Temperature, air pollution, and mortality from myocardial infarction in São Paulo, Brazil
An increase in daily mortality from myocardial infarction has been observed in association with meteorological factors and air pollution in several cities in the world, mainly in the northern hemisphere. The objective of the present study was to analyze the independent effects of environmental variables on daily counts of death from myocardial infarction in
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-11
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5. Visitantes florais de Erythrina speciosa Andr. (Leguminosae)
Inspite of Etythrina species exhibit morphologic attributes for adaptation to pollination by nectarivorous birds mentioned in the literature, E. speciosa is pollinated by lots of bees (Apinae and Meliponinae) which show a great urban occurrence. Systems of E. speciosa floral reproduction, fenology, diversity, frequency and constancy of insects visiting at di
Revista Brasileira de Zoologia. Publicado em: 2000-06
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6. Effect of weather conditions on rheumatic patients.
In a one month prospective study of 62 rheumatic patients--16 with rheumatoid arthritis (RA), 24 with osteoarthritis (OA), 11 with inflammatory arthritis, 11 with fibromyalgia joint pain--swelling and everyday activity was compared with changes in daily weather conditions. In most patients weather changes increased arthritic symptoms. Women were more sensiti
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7. Barometric Pressure. Researches in Experimental Physiology
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8. Lung mast cells in rats exposed to acute hypoxia, and chronic hypoxia with recovery.
Exposure to acute hypoxia (barometric pressure 263 mmHg) for 8 hours did not lead to increased numbers of mast cells in the lungs of rats. In contrast, in adult rats kept for 35 days at a barometric pressure of 380 mmHg there was a proliferation of mast cells around the pulmonary blood vessels and in the alveolar septa. This hyperplasia of lung mast cells in
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9. Effects on the right ventricle, pulmonary vasculature, and carotid bodies of the rat of exposure to, and recovery from, simulated high altitude
Three groups of 10 adult male Wistar albino rats were studied. The first was kept for five weeks in a hypobaric chamber exposed to a barometric pressure of 380 mmHg, equivalent to a simulated altitude of 5,500 m above sea level. The second was exposed to the same barometric pressure for five weeks and then allowed to recover in room air for a further period
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10. Peak expiratory flow at altitude.
The mini Wright peak flow meter is a useful, portable instrument for field studies but being sensitive to air density will under-read at altitude. True peak expiratory flow will increase at altitude, however, because of the decreased air density, given that dynamic resistance is unchanged. The effect of simulated altitude on peak expiratory flow (PEF) was de
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11. Artificial maintenance of the relative ocular tissue pressure during eye surgery.
We describe an operating table in which the whole patient, apart from the eye undergoing surgery, is enclosed in a caisson within which the barometric pressure can be lowered at any time during surgery. This increases the effect of atmospheric pressure on the eye, enabling 'open sky' surgery to be carried out on patients of any age.
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12. Mortality of Altitude-exposed Mice Infected with Pasturella tularensis
The influence of reduced barometric pressure equivalent to an altitude of 18,000 ft (5,486 m) on the susceptibility of mice to tularemia was investigated by exposing groups of animals to the test environment before, after, or before and after intraperitoneal inoculation of 225 colony-forming units of Pasteurella tularensis. Similarly infected control animals