Results 241 to 250 of about 256,217 (299)
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European Journal of Applied Physiology and Occupational Physiology, 1989
The metabolic cost of paddling at low speeds (v) was measured from oxygen uptake (VO2) and anaerobic glycolysis in an annular pool or calculated from submaximal VO2 measured at higher speeds when the kayaker was assisted in overcoming water resistance. Also calculated were the total drag (D) and the net mechanical efficiency (e).
D R, Pendergast +3 more
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The metabolic cost of paddling at low speeds (v) was measured from oxygen uptake (VO2) and anaerobic glycolysis in an annular pool or calculated from submaximal VO2 measured at higher speeds when the kayaker was assisted in overcoming water resistance. Also calculated were the total drag (D) and the net mechanical efficiency (e).
D R, Pendergast +3 more
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Protoplasma, 1967
This brief review is intended specifically as a cementum to the papers in the section on physiology in this Symposium. Since those papers are diverse in approach and content this short essay can not cover the situation adequately. Much less could it aim at being comprehensive with respect to the field concerned with the energetics of transport ...
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This brief review is intended specifically as a cementum to the papers in the section on physiology in this Symposium. Since those papers are diverse in approach and content this short essay can not cover the situation adequately. Much less could it aim at being comprehensive with respect to the field concerned with the energetics of transport ...
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Comprehensive Physiology, 2015
ABSTRACT Muscles convert energy from ATP into useful work, which can be used to move limbs and to transport ions across membranes. The energy not converted into work appears as heat. At the start of contraction heat is also produced when Ca 2+ binds to troponin‐C and to ...
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ABSTRACT Muscles convert energy from ATP into useful work, which can be used to move limbs and to transport ions across membranes. The energy not converted into work appears as heat. At the start of contraction heat is also produced when Ca 2+ binds to troponin‐C and to ...
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2017
Measurements of daily energy expenditure and water turnover showed that energy expenditure in cheetahs was not significantly greater than expected, but water turnover was low. There were no sex differences in daily energy expenditure, but when hunting along riverbeds cheetahs used more energy than when hunting in the dunes, probably because they moved ...
M.G.L. Mills, M.E.J. Mills
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Measurements of daily energy expenditure and water turnover showed that energy expenditure in cheetahs was not significantly greater than expected, but water turnover was low. There were no sex differences in daily energy expenditure, but when hunting along riverbeds cheetahs used more energy than when hunting in the dunes, probably because they moved ...
M.G.L. Mills, M.E.J. Mills
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1993
Inotropic alterations may alter contractile efficiency. Positive inotropic agents act mainly, if not exclusively, by increasing activation, which has very little effect on contractile efficiency. The metabolic effects of hypoxia may depress the contractile machinery directly.
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Inotropic alterations may alter contractile efficiency. Positive inotropic agents act mainly, if not exclusively, by increasing activation, which has very little effect on contractile efficiency. The metabolic effects of hypoxia may depress the contractile machinery directly.
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Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1980
Abstract An understanding of the mechanisms by which bacteria derive their energy is clearly important for the prediction of growth yields. Bacteria can synthesize ATP by a variety of routes, by fermentation, by oxidative phosphorylation, and possibly by the excretion of metabolic end products.
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Abstract An understanding of the mechanisms by which bacteria derive their energy is clearly important for the prediction of growth yields. Bacteria can synthesize ATP by a variety of routes, by fermentation, by oxidative phosphorylation, and possibly by the excretion of metabolic end products.
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1985
Considers that energy considerations must permeate all stages of the design process. If the average architect is to make use of this knowledge, then simple and easy-to-use tools, which will be different for each stage of the design process must be provided.
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Considers that energy considerations must permeate all stages of the design process. If the average architect is to make use of this knowledge, then simple and easy-to-use tools, which will be different for each stage of the design process must be provided.
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1978
Publisher Summary This chapter reviews that the normal process of translation in the ribosome is fed by energy at the expense of three chemical reactions: Ribosomecatalyzed transpeptidation, EF-Tu-mediated hydrolysis of GTP to GDP and orthophosphate, and EF-G-mediated hydrolysis of GTP.
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Publisher Summary This chapter reviews that the normal process of translation in the ribosome is fed by energy at the expense of three chemical reactions: Ribosomecatalyzed transpeptidation, EF-Tu-mediated hydrolysis of GTP to GDP and orthophosphate, and EF-G-mediated hydrolysis of GTP.
openaire +2 more sources