منابع مشابه
Anaerobic heat production by the heart.
Metabolic processes that release energy within the myocardium can be separated into aerobic metabolism, i.e., chemical reactions consuming O2, and anaerobic metabolism, defined here as chemical reactions not consuming 2, even though 02 may be present in the environment. The total energy that is set free by both types of process appears partially as heat within the myocardium and partially as me...
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A micro-calorimeter, suitable for detecting rates of heat production of the order of 1 mcal/h in about 2*3 ml. fluid, is described. Measurements have been made with it of the anaerobic heat production of bull spermatozoa in semen. The result, for the first hour, 220+ 15 mcal/109 live spermatozoa/h at 37° C, is consistent with the hypothesis that, in the first hour of incubation, the heat produc...
متن کاملHeparinase production by anaerobic bacteria.
The production of heparinase by a wide range of anaerobic bacteria isolated from clinical specimens was investigated. None of the 29 strains of Bacteroides fragilis produced heparinase. Of 62 other Bacteroides tested, only two of four strains of B ovatus, two of three strains of B thetaiotaomicron, and two of four strains of B uniformis were heparinase producers. None of the 48 strains of fusob...
متن کاملShort Communication Anaerobic Heat Production Measurements: a New Perspective
Heat production measurements can be performed in two ways: direct and indirect calorimetry. Direct calorimetry is the measurement of heat loss, which under normal steady-state conditions equals the heat production (H). Indirect calorimetry is the calculation of heat production based on parameters related to the heat production, such as respiratory gas exchange (O2 and CO2) and nitrogen excretio...
متن کاملHydrogen production by anaerobic microbial communities exposed to repeated heat treatments.
Biological hydrogen production by anaerobic mixed communities was studied in laboratory-scale bioreactors using sucrose as the substrate. A bioreactor in which a fraction of the return sludge was exposed to repeated heat treatments performed better than a control bioreactor without repeated heat treatment of return sludge and produced a yield of 2.15 moles of hydrogen per mole of sucrose, with ...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1966
ISSN: 0021-9738
DOI: 10.1172/jci105449