Biology bulletin of the Academy of Sciences of the USSR最新文献

Permeability of the histohematic barriers in guinea pigs to serum proteins. 豚鼠组织血屏障对血清蛋白的渗透性。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-05-01

V A Gorban'

引用次数: 0

Regulation of fatty acid composition of Cl. perfringens type A cells by hydrogen and hydroxyl ions. 脂肪酸组成的调节。A型气膜成膜细胞由氢和羟基离子组成。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-05-01

K M Sinyak, V F Rudichenko, M N Yaroshenko, V I Kruk

引用次数: 0

Innervation of the apocrine sweat glands. 大汗腺的神经支配。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-05-01

V E Sokolov, S A Shabadash, T I Zelikina

引用次数: 0

An ecological-agrochemical evaluation and prognosis of pesticide aftereffects (in the case of Ukrainian and Moldavian SSRS). 农药后效的生态农化评价和预测(以乌克兰和摩尔多瓦SSRS为例)。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-05-01

M S Sokolov, E B Sokolova, E I Goncharuk, L B Shostak

引用次数: 0

The influence of polymerization conditions on the 3-ketosteroid delta 1-dehydrogenase activity of Mycobacterium globiforme cells included in a gel. 聚合条件对凝胶中球形分枝杆菌细胞3-酮类固醇δ 1-脱氢酶活性的影响。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-03-01

K A Koshcheenko, T L Avramova, G V Sukhodol'skaya

{"title":"The influence of polymerization conditions on the 3-ketosteroid delta 1-dehydrogenase activity of Mycobacterium globiforme cells included in a gel.","authors":"K A Koshcheenko, T L Avramova, G V Sukhodol'skaya","doi":"","DOIUrl":"","url":null,"abstract":"The influence of the conditions of polymerization and the structure of the polyacrylamide gel (PAG) on the 3-ketosteroid delta 1-dehydrogenase activity of a culture of M. globiforme 193 was studied. A clear dependence of the enzymatic activity on the temperature regime and the duration of the polymerization process was established. The reason for the fall in activity with a rise in temperature and an increase in the duration of the polymerization process is the diminution of the quantity of viable cells. The death of the cells is caused by the action of the monomers. The maximum 3-ketosteroid delta 1-dehydrogenase activity appears when the immobilized cells are maintained in a viable state, accomplished by adopting a short time of polymerization (1--2 min) at a temperature of 4--12 degrees C. The specific activity of free cells of M. globiforme and cells immobilized under these conditions is 0.15 mumoles/mg cells . min. The reason for the low activity in a 20% gel is apparently the limited rate of diffusion of the substrate into the gel, conditioned by the small dimensions of the pores of the gel. A change in the concentration of N,N'-methylene bisacrylamide (MBA) from 0.25 to 2% in 5 and 10% gels does no affect the rate of delta 1-dehydrogenation of the substrate.","PeriodicalId":9166,"journal":{"name":"Biology bulletin of the Academy of Sciences of the USSR","volume":"8 2","pages":"97-102"},"PeriodicalIF":0.0,"publicationDate":"1981-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18344616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mo-cofactors of molybdenum-containing enzymes (survey). 含钼酶的mo辅助因子(综述)。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-03-01

N P L'vov, Z A Alikulov, N A Kil'dibekov, V L Kretovich

引用次数: 0

Objective evaluation of vestibular resistance depending on the direction of change of nystagmus parameters after cumulation of coriolis acceleration. 目的评价在累积科氏加速度后眼球震颤参数变化方向对前庭阻力的影响。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-03-01

I A Sidel'nikov

引用次数: 0

The effect of diazane on the proliferation of human tumor cells. 重氮烷对人肿瘤细胞增殖的影响。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-03-01

V I Shamaev, T V Krutova, R F D'yachkovskaya, D B Korman, O S Shkrob, N A Kuznetsov

引用次数: 0

Preliminary results of medical investigations during piloted flights in the Salyut-6 program. 礼炮-6计划飞行期间医学调查的初步结果。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-01-01

E I Vorob'ev, O G Gazenko, N N Gurovskii, A D Egorov, A V Berogovkin, V A Degtyarev, V V Kalinichenko, I I Kas'yan

{"title":"Preliminary results of medical investigations during piloted flights in the Salyut-6 program.","authors":"E I Vorob'ev, O G Gazenko, N N Gurovskii, A D Egorov, A V Berogovkin, V A Degtyarev, V V Kalinichenko, I I Kas'yan","doi":"","DOIUrl":"","url":null,"abstract":"The changes observed during flight on the whole corresponded with the preflight prognosis and reflected the phase nature of the processes of adaptation. They were shown by blood redistribution symptoms, fluctuations in the main indices of hemodynamics at rest not going beyond the limits of the physiological norm, an increase in the pulse-filling of the head with blood, and a decrease in that of the shank. The reaction of the blood circulation to a physical load and the application of negative pressure varied, and in a number of investigations during flight it was more pronounced than on Earth. The changes observed after the flight appeared regular for the period of readaptation of the reactions of the organism. These reactions bore a functional nature and qualitatively did not differ from reactions observed after other flights, and after the 140-day flight they were, on the whole, less pronounced than after the 96-day flight. In the postflight period to accelerate the process of adaptation a complex of restorative-healing measures was carried out, including mainly a regulation of motor activity, restorative massage of the muscles, remedial physical culture and aquatic procedures. The flight lasting 140 days revealed no contraindications to a further regular increase in the time of cosmic flights and demonstrates once again the possibility of the planned control of the state of a healthy subject in flight and the readiness of the organism for a return to the terrestrial force of gravity.","PeriodicalId":9166,"journal":{"name":"Biology bulletin of the Academy of Sciences of the USSR","volume":"8 1","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18297311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acute experimental emotional stress in rabbits (physiological and cytochemical aspects). 兔急性实验性情绪应激(生理和细胞化学方面)。

Biology bulletin of the Academy of Sciences of the USSR Pub Date : 1981-01-01

A V Gorbunova, N V Petrova, V V Portugalov, S K Sudakov

{"title":"Acute experimental emotional stress in rabbits (physiological and cytochemical aspects).","authors":"A V Gorbunova, N V Petrova, V V Portugalov, S K Sudakov","doi":"","DOIUrl":"","url":null,"abstract":"The influence of acute experimental emotional stress, induced by electrical stimulation of the hypothalamus and skin in immobilized adult male rabbits of the Chinchilla breed, was determined in complex physiological and cytochemical investigations. Three groups of animals were distinguished according to the nature of the cardiovascular responses: resistance, adaptable, and predisposed to the development of stress. In animals predisposed to the development of emotional stress, different metabolic changes are induced in different extraneural nodes of the autonomic nervous system and sympathetic chain. The most pronounced changes occur in the nodose ganglion of the vagus nerve; in this case changes of a catabolic nature predominate over anabolic changes in it. In the stellate ganglion and nodes of the sympathetic chain there is an intensification of anabolic processes. The upper cervical sympathetic node occupies an intermediate position with respect to the nature of the metabolic changes. The presence of a tendency for an increase in the activity of the \"fast\" isoenzymes of lactate dehydrogenase was demonstrated in the conducting system of the heart.","PeriodicalId":9166,"journal":{"name":"Biology bulletin of the Academy of Sciences of the USSR","volume":"8 1","pages":"33-9"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18211378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0