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Biomedical subjects

J Ehrlich

Publications and source records attributed to J Ehrlich.

90 records · Page 5Linked to original sources

Butirosin, a new aminoglycosidic antibiotic complex: bacterial origin and some microbiological studies.

Butirosin, a new aminoglycosidic antibiotic complex, was produced by submerged fermentation with each of two strains of Bacillus circulans. A paper-disc, agar-diffusion assay which employs Escherichia coli (P-D 04863) as the test organism has been developed. Shaken-flask and stirred-jar fermentations in a medium containing glycerol, soybean meal, meat peptone, ammonium chloride, and calcium carbonate reach titers of 500 to 700 mug of butirosin base per ml. Butirosin is active against several gram-positive and gram-negative bacteria including Pseudomonas aeruginosa.

Aminoglycosides↗

Residual fluoride concentrations and scanning electron microscopic examination of root surfaces of human teeth after topical application of fluoride in vivo.

Fluoride concentrations in root surfaces of human teeth after a single topical application with a 2% acidulated sodium fluoride solution in vivo were investigated. Increased residual fluoride concentrations in the root surfaces and precipitations on the peritubular dentin, as revealed by SEM micrographs, may be factors in reducing hypersensitivity.

Dentin↗

Rating communication behaviours in the head-injured adult.

Evaluation of certain communication skills in head-injured adults has generally been limited to informal clinical impressions. A rating scale has been developed which addresses several of these communication abilities in a behaviourally based model. Preliminary data based on a sample of four head-injured adults and four trained raters revealed robust inter- and intra-rater reliability. Statistical relationships between the scale and three linguistic measures for a group of 20 head-injured adults were addressed with negative results. Individually the items selected appear to quantify aspects of complex communication behaviour.

Adult↗

Levans: I. Fractionation, solution viscosity, and chemical analysis of levan produced by Streptococcus salivarius.

Levan produced by Streptococcus salivarius was fractionated into a series of 20 fractions of varying molecular weight. The range of intrinsic viscosities of the fractions was 0.07 to 0.18 dl/gm in water and 0.20 to 0.29 dl/gm in dimethyl sulfoxide. The molecular weight of the unfractionated leval determined by light scattering was 31.5 times 10-6. Small amounts of fatty acids and protein were found associated with levan.

Carbohydrates↗

A functional aspect of anterior attrition or flaring and mode of treatment.

The phenomenon of occlusal wear has been generally reported, with no distinction being made between wear of the anterior or posterior teeth. This paper describes a group of patients without oral habits and exhibiting anterior tooth attrition or flaring with minimal posterior tooth attrition. The mandibular anterior movement patterns of the patients studied were evaluated using a Sirognathograph. These patterns appear to be the etiology for the anterior attrition or flaring present. A treatment mode allowing coexistence of this phenomenon with an anterior guidance that does not interfere with the mastication pattern is proposed. A hypothesis that might explain the clinical findings and a mode of treatment are described.

Adolescent↗