[Immunological structure of the populations of the upper and middle Volga River regions in relation to the causative agent of yersiniosis and its determining factors]. / Immunologicheskaia struktura naseleniia Verkhnego i Srednego Povolzh'ia k vozbuditeliu iersiniozov i opredeliaiushchie ee faktory.

The study of the immunological structure of the population in respect of intestinal yersiniosis at territories with different hydrothermal conditions has revealed the presence of a greater immune stratum (23.9% with the average agglutination titer being 1.8 +/- 0.09 log D) in humid areas, such as the region of the Upper Volga, in comparison with dry areas, such as the region of the Middle Volga, where the level of the immune stratum has proved to be twice as low (10.6% with the average agglutination titer being 0.8 +/- 0.1 log D). At both territories no essential differences in the risk of infection between the inhabitants of rural and urban areas, as well as between different professional and age groups have been revealed, with the exception of persons over 51 years of age, among whom the occurrence of seroconversions has proved to be lower.

[Quantitative analysis of dyes for automated studies of cell preparations]. / Kolichestvennyi analiz krasitelei dlia avtomatizirovannykh issledovanii kletochnykh preparatov.

Spectral studies were made of the dyes in solutions and also of the cytology preparations stained by these dyes. 14 dyes of the blue-violet spectral region were examined. Absorbtion and transmission coefficients of the cell nucleus and cytoplasm were measured. The data obtained allowed to elaborate a quantitative estimation of dye selection. According to this method cresyl-violet was selected as the dye for Videocon LI-421.