[Physical work capacity under different levels of measured stress in relation to type-A personality in intellectual workers]. / Izsledvaniia na fizicheskiia raboten kapatsitet pri razlichni niva na dozirano natovarvane v zavisimost ot tip A pri umstveni rabotnitsi.

The physical work capacity of 122 designers is defined in order to characterize the effect of work activity in the individual standard types /types A and B/ at physical dosage loading. The following methods are used: bicycle ergometry with determination of lung ventilation, oxygen consumption, pulse frequency, etc. by means of the Jaeger ergooxyscreen. Defining the type of behavior of the individual by Rosenman's questionnaire. Determination of catecholamine excretion after the method of Euler and Lishajko. The results pointed out that the physical work capacity of designers is satisfactory and mean in rate, evaluated according to the internationally confirmed classifications. The effect of hypokinesia, age and sex differences and the importance of type A are discussed in relation to the reaction of the organism to the dosage loading, as well as some methodological problems concerning the determination of type A way of behavior.

[Stress reaction to work today]. / Reaktsiia na stres pri suvremenniia trud.

The characteristic of stress factors at work and their effect upon humans is of great significance in labour optimization, detection of early changes in organism, assessment of the operative MAC and MAN, standardization and categorization of labour, etc. On the base of such studies (biochemical, physiological and psychophysiological) stress and fatigue in various occupations and working regimes are characterized. The results from the studies on stress reactions at work are presented in a summarized way, making use of complex methodical approach.

[Plasma renin and erythropoietic activity following a decrease in extracellular volume]. / Reninovaia i éritropoéticheskaia aktivnost' plazmy posle umen'sheniia ékstratselliuliarnogo ob'ema

A reduction of the extracellular volume of the peritoneal dialysis in rats induced modifications in plasma renin activity, plasma erythropoietic activity, and in renin activity in the renal cortex. A significant increase in the renin and erythropoietic activity was revealed in the experimental animals. It is assumed that renin and erythropoietin could be regarded as two links of the same broad control system, responsible for optimum tissue oxygen supply.

[Analysis of a subjective assessment of work and morbidity in modern jobs]. / Analiz na subektivnata otsenka na truda i zabolevaemostta pri suvremennite profesii.

An analysis is made of the subjective assessment of work and morbidity in individuals engaged in two groups of up-to-date occupations: a) with considerable, and b) with insignificant nervous strain. The questionnaire study covers 1420 workers. Morbidity analysis is carried out on the basis of data from 1980 temporary disability cards--90 per cent of the workers exposed to a substantial neurosensory stress feel tired at the end of the working day. It is accepted that the cause of fatigue is firstly, the sustained and continuous observation and secondly, the rhythm required. The greater concentration and monotomy are pointed out as the primary cause in group two. The incidence of central nervous system diseases among workshop supervisors and operators of punching machines definitely augments with the length of service. The morbidity rate of gastrointestinal and peripheral nervous system diseases is also rather high.