[Change of serological properties of museum strains of Shigella flexneri in different terms of storage].

The viability, purity, biological and serological properties of museum strains of Shigella flexneri which were kept in lyophilized state during above 30 years were studied. Primary serological characteristics were specified, it was established that type 2a is the predominant serotype independent of the years and regions of isolation. Some strains lost antigens as a result of the long-term preservation or reinoculation on agar media.

[Performance of hypoxic radiotherapy in malignant tumors taking atmospheric pressure into account]. / Provedenie gipoksiradioterapii zlokachestvennykh opukholei s uchetom atmosfernogo davleniia.

Hypoxic mixtures, delivered during hypoxic radiotherapy, must contain different values of the volume portion of oxygen depending on atmospheric pressure variations. The authors give a formula of calculation of a necessary volume portion of oxygen and tables of atmospheric pressure variations in Moscow as well as rated values of the volume portion of oxygen, applied to possible atmospheric pressure variations.