Viktor P Nikolaev

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To gain insight into the special nature of gas bubbles that may form in astronauts, aviators and divers, we developed a mathematical model which describes the following: 1) the dynamics of extravascular bubbles formed in intercellular cavities of a hypothetical tissue undergoing decompression; and 2) the dynamics of nitrogen tension in a thin layer of(More)
It has been shown using the previously developed model of decompression sickness, which determines the cumulative probability of the development of the symptoms of this illness by the exponential equation whose index is the integral function of cumulative risk of damage to all body tissues by bubbles, Fcum(t) = SigmaFn(t), that underwater dives are(More)
Human subjects and animals exposed to increasing ambient pressure may experience symptoms of decompression sickness (DCS). This sickness is caused by gas bubbles that are formed in blood and tissues during their oversaturation by dissolved gases from pre-existing and newly born microscopic gas nuclei. It is known that the bubble seeds are only those gas(More)
Based on thermodynamic studies, the authors conducted laboratory experiments on searching optimal composition of leaching reagents solution for soils decontamination, when contaminated with Cs-137, of activity coefficient for caesium sulfate microquantities in macrocomponents solutions. The method could be used for modelling the radionuclides phase(More)
Cardiovascular diseases now have a trend to greater prevalence in the direction from the South to the North. This trend is more pronounced in the North of Russia including Far East Federal Region. It is suggested that such trend is caused by different eating behavior responsible for increasing blood pressure in population from colder region, low temperature(More)
Formation and subsequent evolution of gas bubbles in blood and tissues of subjects exposed to decompression are casual processes in their nature. Such character of bubbling processes in a body predetermines probabilistic character of decompression sickness (DCS) incidence in divers, aviators and astronauts. Our original probabilistic theory of decompression(More)