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K Adamsons

Publications and source records attributed to K Adamsons.

At least 55 records · Page 3Linked to original sources
PubMed1969

The effect of ambient temperature upon post-natal changes in oxygen consumption of the guinea-pig.

1. The effect of thermal environment and administration of progesterone upon minimal oxygen consumption and thermal stability of the new-born guinea-pig has been investigated.2. It was found that the ambient temperature at which the new-born is reared does not influence minimal oxygen consumption although it modifies the response to cold.3. Thermal stability was decreased in animals raised in a warm environment.4. Minimal oxygen consumption per unit body weight during the neonatal period increased 25%, most of the increase taking place within 16 hr after birth.5. Decrease in the relative mass of brown adipose tissue was least in new-borns maintained at a high ambient temperature.6. Administration of progesterone did not affect oxygen consumption, body temperature and thermal stability of the new-born.

Adipose Tissue↗
PubMed1969

Exchange of carbon dioxide in the pregnant rhesus monkey: multicompartmental analysis of carbon dioxide kinetics.

The exchange of carbon dioxide in the pregnant rhesus monkey has been studied quantitatively using sodium bicarbonate-(14)C and applying the model of a system of seven compartments. The transfer rates among the various compartments, compartment sizes, and the rate of production of carbon dioxide by fetus and mother were determined with a computer programmed to fit the theoretical model to the data by adjusting the parameter values of the model until a "best fit" was obtained. It was confirmed that the exchange of carbon dioxide between fetal and maternal blood across the placenta is rapid, that between fetal blood and amniotic fluid is slow, and that there is no appreciable exchange between maternal blood and amniotic fluid. The mean net production of CO(2) by fetus was 0.476 +/-0.0402 mmoles/kg.min, and that by mother was 0.373 +/-0.0279 mmoles/kg.min.

Amniotic Fluid↗
PubMed1966

Fetal surgery.

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Female↗