[Prospects for intensification of real motor activity during bonding of humans with virtual computer spaces].

In this article you can familiarize yourself with big experience of using computer signals that are necessary in order to operate by them. These signals arise on the basis of values transformation and afforts directions that are applied to powerful connections of different training devices. Similar opportunities of interaction with computer games programmes were tested on the basis of using a plant to control the dozing projection displacements of masses common centre on area of support.

[Experimental evaluation of displacement of body mass center in the man-chair system during head tilt].

Experimental data concerning the effect of head shifts on the displacement of body mass center in the man-chair system were obtained. The data helped to derive a quantitative evaluation of the relationship between body mass center displacements and head shifts. This relationship can be used to assess the displacement of body mass center in the man-chair system in response to dynamic effects for which kinematic parameters of head shifts can be measured by well-known methods such as time lapse photography and mathematical modelling.

[Ocular effects of cosmic rays on the eyes].

The observed visual phenomena developing in humans as a result of the impact of heavy ions on the eye have been summarized. Possible mechanisms of these effects are discussed.

On the effect of ionizing radiation upon the retina in man and animals.

The phenomenon of light flashes observed by the American cosmonauts on exposure to primary cosmic radiation during translunar flights, and also perceived by other observers on exposure of the eye to neutrons from accelerators, is indeed one of the latest manifestations of the sensitivity of the retina to very high energy radiation. The usual interpretations of this phenomenon are based either on the hypothesis of Vavilov-Cherenkov radiation in the ocular media, or on the direct stimulation of photoreceptors in the retina itself. The data available are submitted to adequate analysis, the experimental materials concerning the radiobiology of the retina are generalized, and a conclusion is drawn as to the most probable mechanism of light flashes considered as signals damaging the outer segments of the rods by particles arising from nuclear reactions in the retina.