Biochemical markers in the taxonomy of the Actinomycetales.

Useful biochemical markers for the classification of Actinomycetales are: 1. DL- or LL-diaminopimelic acid in the peptidoglycan, 2. sugar composition of polysaccharides, 3. fatty acid spectrum of cell lipids. The occurrence of various kinds of branched fatty acids and of unsaturated fatty acids is of special value.     

Age and peritoneal fluid cellular distribution in women 20-40 years of age.

Cytologic aspiration specimens of peritoneal fluid revealed that mesothelial cell proportions were significantly reduced 19.2% in women between 26 and 35 years of age. Possibly, mesothelial cell renewal was decreased in women of the older age groups.     

Direct fluorination of carcinogenic polycylic aromatic hydrocarbons. 6-Fluorobenzo(a)pyrene.

Xenon difluoride reacts with benzo[a]pyrene(BaP) in dichloromethane solution in an open system to give 6-fluorobenzo[a]pyrene. This method constitutes a direct route to fluorine substituted carcinogenic polycyclic aromatic hydrocarbons.     

Sur l'influence de l'aneurine sur la formation des nodosités bactériennes nitrogènes

Summary In certain cases, the production of bacterial nodules on legumes can be influenced by aneurin. The preliminary trials should be continued in order to establish the most favourable conditions of aneurin action.     

Die Nobelpreise für Medizin-Physiologie,Chemie und Physik

Ohne Zusammenfassung     

Compte rendu des publications

Cellular and Molecular Life Sciences -     

Über die Verwendung von künstlichen radioaktiven Isotopen zur Erzielung von lokalisierten biologischen Strahlenwirkungen

Summary The author made a first attempt to utilize an artificial radioactive isotope for the production of localized biological radiation-effects, by means of intraperitoneal injections of radiozinc (Zn⁶³) suspended in a solution of pectine. Experiments were performed on mice and rabbits and the procedure was applied, for the purpose of preliminary therapeutic investigations, to a case of carcinoma of the ovary with severe peritoneal extension.