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Evaluation of changes in respiration circulation and respiratory gas transport has shown that long-term influence of hyperbaria gives rise to phase changes and promotes a shift to a new level of the functional state of aquanauts. It is established that the postdecompression syndrome is characterized by the lability of main parameters of breathing and circulation, depression of gas exchange, disorders of bronchial permeability, relaxation of the cardiac pump function, decrease of physical workability against the background of inhibition of the adrenal cortex and weakening of the non-specific immunoresistance. Examination of 145 deep divers has revealed regularities of readaptation dynamics and has permitted a conclusion on an increase of unfavourable tendencies in the ventilatory pulmonary function and cardiac pump function under repeated effect of saturated diving. The normative values of external respiration are worked out as applied to divers. Some new approaches to the technology of medical providing of deep divings and correction of non-specific professional pathology of acquanauts are physiologically substantiated proceeding from tendencies of shifts in the periods between divings and diving norms. 相似文献
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V. I. Burkov L. A. Goncharova G. A. Gusev K. Kobayashi E. V. Moiseenko N. G. Poluhina T. Saito V. A. Tsarev Jianhua Xu Guobin Zhang 《Origins of life and evolution of the biosphere》2008,38(2):155-163
The first results of the RAdiation Mechanism of Biomolecular ASymmetry (RAMBAS) experiment on investigation of the radiation
mechanism of the influence on chiral molecules, as a factor leading to origination of chiral asymmetry are presented. It was
found that irradiation of simple achiral materials by a flux of electrons from radioactive source initiated the synthesis
of amino acids, and it resulted in asymmetric degradation and chiral asymmetry in a racemic mixture of amino acids. The results
obtained can be important for the solution of the origin-of-life and biological homochirality problems. 相似文献
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Protoplasma - The present study reveals silica in sporoderms of micro- and megaspores of the modern quillwort Isoetes echinospora Durieu and homologizes layers of the sporoderm in spores of this... 相似文献
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An original device has been worked out which permits registering parameters of respiration, gas exchange and circulation in man during diving and performance of some tests under water (graduated exercise, respiration with changed gas mixture, etc.). The correction coefficients have been experimentally determined to calculate the gas exchange and cardiohemodynamics indices in underwater conditions. The indices of human work capacity under water are determined using the above device. 相似文献
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N A Moiseenko L I Irzhak I N Voronova 《Zhurnal evoliutsionno? biokhimii i fiziologii》1978,14(3):295-297
Studies have been made on the amino acid composition of electrophoretically homogeneous albumin and its main isoelectrically homogeneous fraction in two strains of hens and their hybrid. Serum albumin of hen and hybrid is characterized by higher total content of Asp and Glu residues as compared with that of the cock (137, 121, and 116 respectively) and lower content of Lys (59 against 66). The acidity of albumin increases in the line cock-hen-hybrid. With respect to its amino acid composition, the maternal serum albumin stands close to the hybrid one. 相似文献