A.A.Khan教授将来华讲学

美国康乃尔大学种子生理学家A.A.Khan教授,将于今年十月中旬来华,到广州及杭州访问,并在广州举办讲习班,做以下五方面的报告:①应用种子预措施改善幼苗生长与产     

A.L.Demain教授来华访问

美国麻省理工学院(MIT)营养和食品科学系工业微生物学教授A. L. Demain教授偕其夫人,于1982年5月24日—6月5日来华进行学术访问。先后在上海和北京访问了中国科学院和     

遗传工程学家A.M.Chakrabarty

Ananda M.Chakrabsrty是一位著名的遗传工程学家和美国生物化学家协会、微生物协会、工业微生物协会以及美国科学促进会的成员。他于1938年4月4日诞生在印度的Sainthia,1965年在加尔各答大学获得生物化学博士学位。后来,他到了美国的伊利     

A. A. Ukhtomskiĭ and I. P. Pavlov: a controversy or a dialogue?

Pavlov's concept of conditioned reflexes and Ukhtomskii theory of dominanta fall within the biological line in physiology. They unravel the integral adaptive and active nature of the organism behavior in the environment. It is impossible to develop modern concepts about the determinants of goal-directed behavior of animals and voluntary activity of humans without in-depth study of the achievements of these Russian physiological schools which not only formed the methodological basis for the current studies but also directed the way for their further development.     

A.原材料采集要求

<正>1.房屋 房屋应具适宜的规模和结构,其位置应便于生产操作、清洁和维修,并符合可接受的卫生准则。它们应符合修订的第1号生物制品规程(生产单位和检定实验室的基本要求,WHO:TRS NO.323,13,1966).另外,对下述工作应提供适当的空     

A. A. Ukhtomskiĭ's ideas in studies on the cognitive activity

Experimental data on spatial and temporal organisation of the human EEG from birth to maturity, at resting and during cognitive activity, is presented. The data obtained is interpreted in light of a confirmation of the Ukhtomsky's ideas on the "functional working organ" appearing in the brain for realising cognitive processes. Role of the alpha-rhythm in formation of plastic intracortical neuronal network is elucidated. A hypothesis is advanced stating that the gradually developing brain system exerting a local regulated activating effects upon the cortical level, is a significant factor of the functional intercentre integration.