[Functionally stressed ceramic implants and tissue reactions. A long-term experimental animal and clinical study].
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Biomedical subjects
Publications and source records attributed to H Kirschner.
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In 1698 female workers aged 18-45 a relationship was sought between subjective symptoms of fatigue and factors which directly or indirectly could affect them: age, Hb level, relative body weight, health status, abundance of menstrual bleedings. In 199 women the number of sleep hours and stress in occupational work was taken into account. A strong relation was found between fatigue and age of women. The role of the remaining factors was evaluated after standardisation for age. The occurrence of fatigue was highly statistically dependent on the health status and abundance of menstrual bleedings. The other relations were less pronounced.
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In spite to lower the dose dependent side effects by the application of roentgenologic contrast media in the computed tomography a system of a biphasic injection per bolus and perfusor was installed and compared with that of the monophasic bolus injection. Special rules on the installation of the perfusor at CT should be observed.
A new continuous position marker for whole-body computed tomography marks the distance from an anatomical point or from a radiation field, the left side of the patient, and the zero level in front of or behind the CT-picture.
In 78 workers aged 19--59, employed in foundry and forge, intestinal absorption was examined. The d-xylose test was performed twice--at the beginning and end of the work shift. The intestinal absorption of d-xylose was found to decrease at the end of the work--shift and varied with workers' age and work--load magnitude.
The study was aimed at investigating the effect of graded exercise performed on a cycle ergometer under different thermal conditions on the intestinal absorption. Intestinal absorption was estimated by d-xylose test in 18 men aged 19--66 prior to--and--following an exercise at neutral and raised temperature (32--33 degrees C). The work--and--thermal load applied corresponded to or even exceeded that experienced by hot working environment workers in not industry. The study failed to demonstrate any significant effect of physical effort and ambient temperature on intestinal d-xylose absorption. The formerly found decrease in intestinal d-xylose absorption during work in industry might be accounted for by combined effects of various factors inherent in occupational work.
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