Biomedical subjects
S Tsuchiyama
Publications and source records attributed to S Tsuchiyama.
In search of buried talents. Part 1.
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Difficult questions. Treating the self-referred patient.
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Buying & selling--the vendors speak up.
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How to build the perfect technologist. Licensure of nuclear medicine technologists and sonographers.
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Effect of starvation on nutrition and insulin secretion in pregnant rats and their fetuses.
Pregnancy is thought to create a metabolic condition of accelerated starvation. To clarify this idea, the effect of fasting on pregnant rats (day 21 of gestation) and their fetuses was examined. Although pregnancy significantly increased plasma insulin, plasma ketone body concentrations in fed pregnant rats were higher than those of age-matched fed virgin rats. After 48 hr fasting (i.e., fasting during days 19-21 of gestation), plasma insulin was markedly decreased in virgin rats compared with term pregnant rats, while ketone bodies were significantly higher in pregnant rats than in virgin rats. Body weight was lower in fetuses from fasted mothers than those from fed mothers. Starvation also markedly diminished the insulin response to glucose in isolated, perfused pancreases in both virgin and pregnant rats. The amount of insulin released during glucose stimulation was greater in pregnancy, and the inhibitory effect of 48 hr fasting on insulin release was greater in virgin rats than in pregnant rats. It is possible, therefore, that in term pregnant rats a decrease in insulin release caused by fasting may cause more profound catabolism than in nongravid rats.
Strategies to cope with the technologist shortage.
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Changes & choices. AR nationwide survey.
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Expanding roles and dynamic partnerships. The hospital administrator-vendor relationship.
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The forces driving MRI. The manufacturers' role.
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[Heat-shock in Drosophila as a model system of gene expression control (author's transl)].
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Analysis of gynandromorph survivals in Drosophila melanogaster infected with the male-killing SR organisms.
The effects of SRO (Sex-ratio organism; previously called SR spirochetes) infection on the viability of gynandromorphs of D. melanogaster were examined. A fraction of gynadromorphs, most of them with small areas of XO tissue, survived, but the majority were not viable when XO nuclei or cells are affected by the infecting SRO. Apparently the replacement of lethal XO nuclei or cells by adjacent XX ones does not take place. Some possibilities are discussed as to the time and the primary site of the lethal action of SRO.
[Activities of the supervisor nurse on the night shift].
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