[Obesity in adolescents. Results of Russian epidemiological trial].

Aim: To study prevalence of overweight and obesity among Russian 12-17 year-olds. MATERIAL AND METHODS; A total of 11977 adolescents (forms 6-11) from schools randomly selected for one-stage trial were examined. The protocol included filling in questionnaires, measurements of body mass, height, waste circumference.

[Morphological and functional changes in lymphoid organs after mud treatment].

Course application of curative mud results in changes structure and cellular composition of all the lymphoid organs studied: thymus, mesenterial and popliteal lymph nodes. These changes are mainly unidirectional and are characterized by increased reactions of humoral immunity.

[Spatial distribution of synthetic activity in zone-forming colonies of soil Streptomycetes].

The space distribution of synthetic activity in the substrate mycelium gyphs--structure growth units of a quasiorganism of the radiant fungus, was studied by the method of microspectral analysis. A detailed map of the distribution on the alpha-parameter (which reflects the level of synthetic activity) from the cross section of a living streptomyces colony was constructed. The data obtained support with a high reliability the earlier supposition that the maximum of synthetic activity is in the growth zone and the minimum synthetic activity is in the globular regions of formation of air mycelium protogyphs.

[Rhythmical sporogenesis in Streptomyces colonies. A one-dimensional model].

A one-dimensional model imitating the growth and zone formation of a colony of the radiant fungus streptomycete on a synthetic agar nutrient medium with pyruvate, glucose, or succinate as a limiting source of energy and carbon was considered. The key parameters were determined whose values depend on the composition of nutrient medium and environmental conditions.