[Congenital syphilis presenting as protracted diarrhoea (author's transl)].

Congenital syphilis presented itself as protracted diarrhoea with bloody stools at times and anemia in a six weeks old infant. In the later course of the disease, hepatosplenomegaly and signs of glomerular lesion developed, osteitis was diagnosed radiologically.

Physicochemical studies of the protein-lipid interactions in melittin-containing micelles.

Complexes of melittin with detergents and phospholipids have been characterized by fluorescence, circular dichroism, ultracentrifugation, quasi-elastic light scattering and 1H nuclear magnetic resonance (NMR) experiments. By ultracentrifugation and quasi-elastic light-scattering measurements it is shown that melittin forms stoichiometrically well-defined complexes with dodecylphosphocholine micelles consisting of one melittin molecule and approximately forty detergent molecules. Evidence from fluorescence, circular dichroism and 1H nuclear magnetic resonance experiments indicates that the conformation of melittin bound to micelles of various detergents or of diheptanoyl phosphatidylcholine is largely independent of the type of lipid and furthermore appears to be quite closely related to the conformation of melittin bound to phosphatidylcholine bilayers.

[Ultrastructure of the lateral vessel walls of the tube of Bonellia (Bonellia viridis, Echiuridae)].

The present studies show the presence of a singular structure: a myoepithelial syncytium with the bases of the cells being embedded in a hypertrophied basal lamina containing collagen, in which bundles of muscular fibers also penetrate. The cells forming a vascular pseudo-endothelium are probably immobilised haemocytes.

Redwoods: a population model.

The chief conclusion to be drawn from the results of this study is that redwoods are amazingly vigorous. The results support both the lumber companies and the conservationists. There is no question that old growth giant redwoods must be preserved.