[Shortening of the life span in an experiment with chronic external gamma-irradiation. In defense of the aging hypothesis].

Using Homperz's theory the authors quantitatively determined the mortality rate as one of the effects of chronic external irradiation. Two factors were found to be responsible for the mortality rate, they are, the intensity and time of chronic exposure. Premature ageing is discussed as a possible mechanism of life shortening.

[Shortening of the life span in an experiment with chronic external gamma-irradiation. The structure of mortality].

The paper submits the statistical analysis of data on the mortality structure obtained by the experiment with chronic external gamma-irradiation within a wide range of dose rates. The cumulative mortality rate was a function of time. The authors discuss whether the shortening of life span resulting from chronic exposure to gamma-radiation is or is not specific.

[Genetic effect of chronic gamma radiation exposure in male mice].

The frequency of reciprocal translocations (RT) in mouse spermatogonia induced by gamma-rays at doses of 1.5 to 4.5 Gy and dose rates of 2.

Genetic effect of chronic exposure of male mice to gamma-rays.

The frequency of reciprocal translocations (RT) in mouse spermatogonia induced by gamma-rays at doses of 1.5-4.5 Gy and dose rates of 2.

[Long-term effects of chronic irradiation of rats at different dose rates].

Chronic exposure to ionizing radiation at dose-rates of 1.7 to 13.5 cGy/day has some distinctive features among which the development of radiation affection at the dose rate of 13.