[Hospital acquired infections among newborns and parturients from radionuclide contaminated and control territories].

The comparative epidemiological study of hospital acquired infections (HAI) prevalence among newborns and parturient women in radionuclide contaminated territories (RT) and control territories (CT) was carried out. Observation covered altogether 2,837,471 newborns, of these 1,617,047 in CT, and 2,378,877 parturient women, of these 1,352,831 in CT. A high level morbidity of thyroid gland diseases, diabetes mellitus, as well as puerperal sepsis and urogenital tract diseases, was detected among parturient women at RT.

[Comparative study of the oxygen reduction in photosystem II of the cyanobacteria, Anacystis nidulans and Anabaena variabilis].

Oxygen reduction in the photosystem II (PS II) of thylakoid membranes from the cyanobacteria Anacystis nidulans and Anabaena variabilis was studied in the system SiMo + DCMU in whose presence competitive electron transport to SiMo and O2 in possible. The reagents of the Mehler reaction were used; these reagents activate oxygen uptake by interacting with the reduced forms of oxygen (malonate and oxalate with O2; glyoxylate and catalase + ethanol with H2O2). The use of the reagents as shown that there was a considerable electron transport to O2 which decreased the rate of SiMo reduction and visible oxygen evolution.