Biomedical subjects
Publications and source records attributed to E Meyer.
Simultaneous addition of succinate (or fumarate) and NADH to a non-proliferating suspension of P. fluorescens results in an enhancement of the oxydation of the endogenous substrates. This conclusion is in accord with the determination of the respiratory and the oxidation quotients of the analysed exogenous substrates.
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113 lateral teleradiographs of students were analysed by A. M. Schwarz's method of X-ray analysis inorder to clarify whether the occlusal position of a patient can be determined from gnathometric data and data relating to soft parts in the lateral teleradiograph with sufficient certainty. The relatively high proportion of close bite cases (20%) enabled a comparison to be made of the measurements of anatomically correct occlusal position and close bite. The large scatter of the measurements for anatomically correct interlocking was striking. Of seven specific close bite characteristics, with anatomically correct occlusal position three at most could be identified whereas in cases of close bite, four to six occurred. So the diagnosis of "close bite" from the appearance of four or more close bite characteristics in the lateral teleradiograph seems to be confirmed.
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The lead content of 222 species of wild mushrooms, either edible or poisonous, was determined by graphite furnace atomic absorption spectroscopy. Altogether 494 samples, grown in rural regions of southern Germany, were tested. The lead content was between less than 2.0 and 40.4, on the average 10.6 mg/kg dry weight, equivalent to less than 0.1 and 3.0, on the average 1.06 mg/kg fresh weight.
The radiodiagnostic signs of congenital basal encephalocele are well known. The case history described here shows that a long existing, acquired, traumatic transethmoidal encephalocele can cause the same roentgen appearance. The differences between the congenital and recent posttraumatic forms are indicated.
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In our experiments, peracetic acid--known in commerce as "Wolfasteril" was tested as a new and efficient disinfectant to disinfect sewage waters from rendering plants. Peracetic acid was used in experiments in concentration of 0.1 to 1.0% for 30 sec. to 60 min. As a comparative agent, 5% chloramine was used. Results obtained in preliminary and main experiments proved that peracetic acid is fully appropriate to disinfect biologically cleaned sewage waters in rendering plants. Sewage waters supplying the main stream has to pass mostly a short section after having left the water clarifier. Consequently, the concentration of 1% peracetic acid acting for 30 sec. is the optimum one. The recommendation of this application norm for peracetic acid in water clarifiers from rendering plants being at least suitable in controlling disasters.
Studies of the oxidation of ethanol, serine and pyruvate by non proliferating suspensions of P. fluorescens show that the rate of oxidation of these substrates is appreciably increased by the addition of NADH. The observed effects are interpreted on the basis of apparent oxidation quotients of NADH which exceed the theoretical values.
In our experiments, peracetic acid -- known in commerce as "Wolfasteril" was tested as a new and efficient disinfectant to disinfect sewage waters from rendering plants. Peracetic acid was used in experiments in concentration of 0.1 to 1.0% for 30 sec. to 60 min. As a comparative agent, 5% chloramine was used. Results obtained in preliminary and main experiments proved that peracetic acid is fully appropriate to disinfect biologically cleaned sewage waters in rendering plants. Sewage waters supplying the main stream has to pass mostly a short section after having left the water clariflier. Consequently, the concentration of 1% peracetic acid acting for 30 sec. is the optimum one. The recommendation of this application norm for peracetic acid in water clarifiers from rendering plants being at least suitable in controlling disasters.
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Follow-ups in class C 1 patients who underwent prosthetical treatment seemed indicated since little was known about the chances of success. It was possible to examine 20 patients of this groups mainly with regard to objective functional efficiency of the dental replacement worn from 1 to 8 years. Furthermore, articulation occlusion, relationship of upper and lower jaws, and frequency of required repairs were checked. Purely gingivally borne prostheses as well as periodontally supported and gingivally borne dentures had the same rate of success. The mixed form, i.e. gingivally borne in the upper jaw and periodontally supported and gingivally borne in the lower jaw, seemed to be less favorable due to differing load tolerances.
53 clinically prepared bridges were examined with regard to the resting position of the bridge body on the alveolar ridge, before they were finally cemented. It was to be tested whether the ideal requirements of punctate or linear pressure-less resting was met and if not, how big the portion of the base resting on the gingiva was as compared to the total base. All bridge bodies were resting on the alveolar ridge without exerting pressure but with a more or less broad base. In 42 out of the 66 examined cases, the bridge body was in a 50 to 100% contact with the mucosa.