Gas Exchange
Pulmonary Gas Exchange in Nonnative Residents of High Altitude
... This study represented an initial attempt, by means of cross-sectional investigation, to determine the effects of chronic exposure to high altitude on pulmonary gas exchange. Single-breath D Lco and its ...
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Reversible brain inactivation induces discontinuous gas exchange in cockroaches
... The ability to induce DGCs reversibly in cockroaches by selectively cooling their brain provides tentative support for the neural hypothesis: that DGCs are associated with a sleep-like state in insects, involving the ...
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Regulation of gas exchange and haemolymph pH in the cockroach Nauphoeta cinerea
... haemolymph during the closed and flutter phases lowers its pH (Buck and Keister, 1958; Levy and Schneiderman, 1966). Many researchers have hypothesised that the DGC must confer some adaptive benefit, as it appears to ...
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Relating Xylem Cavitation to Gas Exchange in Cotton
... Acoustic emissions (AEs) from xylem cavitation events are characteristic of transpiration processes. Though a body of work exists describing AEs and limited stem hydraulic conductivity under water stress, there is ...
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Gas Exchange and its Effect on Blood Gas Concentrations in the Amphibian, Xenopus Laevis
... The fact that more than 80% of the total carbon dioxide produced by the animal is lost via the skin means that there is a fall in volume in the lungs during gas exchange and the evidence[r] ...
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An automated gas exchange tank for determining gas transfer velocities in natural seawater samples
... techniques often involve pre-concentration procedures which can be complicated and the overall extraction efficiency can vary significantly. By contrast, automated gas equilibration has been shown to be highly ...
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Fluoride Exposure Compromises Gas Exchange of Plants
... high phytotoxic potential, with absorption occurring preferentially through the stomata [1,3]. As F accumu- lates in the leaves, ultrastructural and structural damages occur in cells and tissues, respectively, and these ...
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Gas exchange kinetics in elite runners
... ±1%. Gas volumes were corrected to standard temperature pressure dry ...calculate gas exchange at the alveolar level with corrections for changes in lung volume and lung gas ...
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Gas exchange by intratracheal insufflation in a ventilatory failure dog model
... nevertheless, intubated and connected to a respirator. In search of a partial respiratory assistance method we evaluated the gas exchange, mechanisms, and hemodynamic effects of intratracheal insufflation ...
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Ventilation and gas exchange in lizards during treadmill exercise
... and gas exchange rate were determined simultaneously (as described above) before, during and after exercise using a similar experimental ...and gas exchange rates were measured over a 10–20 ...
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Ventilation and Gas Exchange During Shallow Hypothermia in Pigeons
... VENTILATION AND GAS EXCHANGE DURING SHALLOW HYPOTHERMIA IN PIGEONS BY CHRIS JENSEN AND CLAUS BECH Department of Zoology, University of Trondheim, N-7055 Dragvoll, Norway Accepted 12 Dece[r] ...
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Inverse Modelling of Trace Gas Exchange at Canopy and Regional Scales
... plant-atmosphere exchange; (ii) identification of limitations to generalisation of parameters and how these may be overcome; and (iii) assessment of factors complicating interpretation of atmospheric ...
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Comparative field performance of three different gas exchange systems
... greater than LI-6200 values. This proved to be the case, especially at midday, when leaf orientation led to the greatest difference in sampled leaf orientation between the two portable systems. Which is the correct way ...
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Extracorporeal gas exchange: when to start and how to end?
... In the veno-venous configuration, the artificial and the natural lung are connected in series, as the blood flow entering the membrane lung is re-directed into the natural lung, after the artificial gas ...
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Characteristics of Gas Exchange in Three Domesticated Anemone Species
... [15] R. V. Ribeiro, G. B. Lyra, A. V. Santiago, A. R. Pereira, E. C. Machado and R. F. Oliveira, “Diurnal and Seasonal Patterns of Leaf Gas Exchange in Bahiagrass (Paspalum Notatum Flugge) Growing in A ...
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Impact of respiratory mechanics model parameters on gas exchange efficiency
... In conclusion, the combination of a single compartment model of the respiratory system that is accurate enough to predict the behaviour of the system during a complex dynamical situation (the forced maneuver), on one ...
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GAS EXCHANGE THROUGH THE LUNGS AND GILLS IN AIR BREATHING CRABS
... morphological differences between the different lacunar systems that would prohibit equal oxygen uptake in each lacunar bed (see Farrelly and Greenaway, 1993). The decreasing rate of oxygen pick-up across the lung was ...
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Evidence from mosquitoes suggests that cyclic gas exchange and discontinuous gas exchange are two manifestations of a single respiratory pattern
... discontinuous gas exchange patterns in insects are replaced by more cyclic or even continuous patterns as temperature ...the gas exchange pattern (expressed as the coefficient of variation) ...
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Size of Gas Exchange Vessels in the Lung
... might be responsible for the delay in evolution of ether gas through arterioles 44 pt in diameter or larger include a delay in arrival of the droplets at the site of gas exchange, too fe[r] ...
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Aquatic Gas Exchange in the Freshwater/Land Crab, Holthuisana Transversa
... Resting oxygen consumption is regulated over a wide range of external oxygen tension Arudpragasam & Naylor, 1964; Johansen, Lenfant & Mecklenburg, 1970; cy words: Gas exchange, Holthuisa[r] ...
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