Passive Ventilation
Mostrando 13-24 de 28 artigos, teses e dissertações.
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13. Paramentros fisiologicos, motores e morfologicos de bailarinas classicas / Physiological, morphological and motor parameters in classical ballet dance players
The aims of this study were: make the anthropometrics profile and body composition in classical dancers; Check through specific tests the flexibility, the agility, the explosive strength of lower limbs and the cardio respiratory capacity in the dancers; analyze the levels of blood lactate concentration blood and the its removal kinetics after two different s
Publicado em: 2007
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14. Modelagem computacional e simulação numérica em arquitetura visando conforto emaAmbientes construídos / Computational modelling and numerical simulation in architecture aiming at comfort of building environments
Nesta tese, modelagem computacional e simulação numérica são desenvolvidas para arquitetura, com o objetivo de permitir avaliação de configurações de projetos e testes de possíveis melhorias, tanto na fase pré-ocupacional, como na pós-ocupacional, visando conforto em ambientes construídos. Essas melhorias são aqui introduzidas a partir de altera
Publicado em: 2007
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15. Bioclimatic architecture and Severiano Portos work: natural ventilation strategies / Arquitetura bioclimática e a obra de Severiano Porto: estratégias de ventilação natural
Bioclimatic architecture consists in minimizing the impacts of an intervention on the environment and obtaining a close relationship between building and nature. This research emphasizes the importance of natural ventilation as a cooling resource for hot and humid climates, contributing for the study of project strategies that adjust to local context and env
Publicado em: 2006
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16. Ventilação natural e códigos de obras: uma análise das tipologias de aberturas nos edifícios de escritório em Maceió/AL
In office buildings located on hot humid climate areas, the architectonical typology could improve the regional winds entrance and minimize the energy consumption. The increase of ventilation inside the rooms depends on the architectonical typology adopted and the specifications related on the rooms openings. The rooms openings allow or make difficult to dis
Publicado em: 2006
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17. Dosimetria gama e concentração de 222Rn em ambientes de trabalho fechados da cidade de São Paulo / Gamma dosimetry and 222Rn concentration in indoor workplaces of São Paulo
In this work we present the evaluation of the ambient gamma dose rates and the concentration of 222Rn in the air of 16 rooms of radiotherapy centers and 15 places of seven subway stations in the city of São Paulo. The places included in this study were indoor places with continuous permanence of workers. The deepest working places of the subway stations in
Publicado em: 2005
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18. InteraÃÃo entre fatores climÃticos e um recinto localizado na cidade de recife: estudo teÃrico-experimental
Ambient temperatures lying between medium and high values, combined with small thermal amplitude, high values of relative humidity and solar radiation make the city of Recife a region that can be considered as having scarce possibilities for the use of passive or low energy consumption methods for providing thermal comfort conditions in local residences. Tak
Publicado em: 2002
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19. Respostas cardio-respiratorias ao exercicio fisico dinamico em mulheres sedentarias no segundo trimestre de gravidez / Cardiorespiratory responses to dynamic exercise in sedentary women during the second pregnancy trimester
This cross-sectional research was designed to evaluated the cardiorespiratory responses to the moderated dynamic exercise in sedentary women during the second trimester of pregnancy. This work intends to offer new data that will permit a better evaluation in the application of physical activities during pregnancy. Fifteen sedentary women volunteend and were
Publicado em: 1996
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20. Paradoxical effect of oxygen administration on breathing stability following post-hyperventilation apnoea in lambs.
1. Oxygen administration is thought to suppress periodic breathing (PB) by reducing carotid body activity, and yet earlier experiments in neonates have shown that PB incidence may be increased following the application of hyperoxia. To clarify this paradox, we studied the changes in the pattern of PB that occur following administration of oxygen in a lamb mo
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21. Within-breath modulation of left ventricular function during normal breathing and positive-pressure ventilation in man.
1. To investigate how intrathoracic pressure affects left ventricular function during normal breathing and positive-pressure ventilation, beat-by-beat measurements of left ventricular stroke volume (LVSV; pulsed Doppler ultrasound), heart rate and blood pressure were made in five normal subjects breathing actively and then undergoing passive positive-pressur
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22. Apnoea following normocapnic mechanical ventilation in awake mammals: a demonstration of control system inertia.
1. Inhibition of inspiratory muscle activity from volume-related feedback during mechanical ventilation has been shown previously. To determine if this neuromechanical inhibition displays a memory effect, the duration of expiration immediately following cessation of mechanical ventilation was assessed in eight normal subjects. The subjects were passively mec
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23. Respiratory failure in neuromuscular diseases
A series is reported of five patients with acute respiratory failure complicating neuromuscular diseases, three of whom required assisted ventilation. Initially the arterial carbon dioxide tension fell to levels below the normal range in all the patients and this change reflects alveolar hyperventilation which is probably produced by a combination of fear, s
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24. Regional cerebral blood flow during volitional breathing in man.
1. Positron emission tomographic imaging of brain blood flow was used to identify areas of motor activation associated with volitional inspiration in six normal male subjects. 2. Scans were performed using intravenous infusion of H2(15)O during voluntary targeted breathing and positive pressure passive ventilation at the same level. 3. Regional increases in