Effect of chronic exposure to low doses of ionized radiation on embryonal development of the Japanese quail

Experiments on Japanese quail embryogenesis on a background of chronic exposure to gamma- and neutron doses comparable with the doses of ionized radiation inside the orbital space stations Mir and ISS, and exploration vehicles gave evidence that permanent absorption of low gamma-doses (0,15 cgy/d) did not impact development of the Japanese quail embryos. On the contrary, the neutron dose of 200 microgy/d imparted by the neutron flux of 30 particles/cm2s was hazardous to embryos as it caused morphological disorders in 12% of embryos.     

Mortality in the workers in the tire industry]

The article is concerned with a study of the mortality rates among the workers engaged at a tire-producing plant, for the 1950-1979 period. In comparison with the control population group, the contributors revealed increased mortality rates caused by cardiovascular diseases, malignant neoplasms, accidents, intoxications and traumas. Analysis of the labour conditions proved the influence of the unfavourable occupational factors on the mortality rates and mortality causes, excepting the indices of mortality caused by accidents, intoxications and traumas.     

Functional changes of myocardial contraction and relaxation in hypertension patients as affected by reflexotherapy

49 patients with initial stages of essential hypertension (EH) were investigated using phase systole analysis and echocardiography during acupuncture (reflexotherapy) treatment. It was established that even at the initial stages of EH increasing of myocardial mass and the disturbances of contractile and diastolic activity of myocardium take place. As a result of acupuncture a stable hypotensive effect, improvement or normalization of contractile function and diastolic values, a decrease of energy loss, reversal of myocardial hypertrophy were achieved. It is the decrease of sympathetic influences on the circulation system that plays an important part in the onset of these positive changes.