巻号一覧
14 巻, 1 号
選択された号の論文の4件中1～4を表示しています
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甘利 俊一1974 年 14 巻 1 号 p. 1-8
発行日: 1974/01/25
公開日: 2009/05/25
ジャーナル フリーIt is important to investigate the characteristics of nerve nets from the macroscopic viewpoint, in order to elucidate the information processing of the brain composed of an enormous number of neurons. The present paper aims at establishing a mathematical theory of nerve nets mainly from the macroscopic viewpoint.
A method of statistical neurodynamics is proposed in the beginning, ant it is applied to nets of randomly connected neurons. The method is proved to be useful not only for deriving the macrostate equations of large-scale nets and analyzing their behaviors, but also for deriving microscopic features of statetransition. Possible mechanism of association, abstraction and conceptformation is shown, which might take place in large-scale nerve nets.抄録全体を表示PDF形式でダウンロード (547K) -
その生体高分子研究への応用藤目 智1974 年 14 巻 1 号 p. 9-26
発行日: 1974/01/25
公開日: 2009/05/25
ジャーナル フリーRecent progress in laser technology makes it possible to detect the spectral broadening of light scattered from solutions of macromolecules. Since the spectral width of light from a CW gas laser, e. g., a He-Ne laser, is only a few Hz or less, we can detect a frequency shift as small as 10 Hz if we adopt a photoelectric lightmixing technique for the detection system. In this review article, a newly developed technique, quasielastic light scattering, will be presented. The theory of the spectrum of laser light scattered from solutions of macromolecules is at first reviewed. The experimental apparatus required to measure the spectrum is then described. Finally, the application of the technique to the elucidation of problems of biophysical interest is discussed.抄録全体を表示PDF形式でダウンロード (896K) -
杉田 良樹1974 年 14 巻 1 号 p. 27-35
発行日: 1974/01/25
公開日: 2009/05/25
ジャーナル フリーThe Preutz model for the cooperative ligand binding and the interactions between hemoglobin subunits is briefly described. Several results are presented indicating that the binding of the ligand or changes of spin states of the irons at some hemes of a tetramer alter the states of the other hemes as detected by spectrophotometry. ESR and NMR, which support the Perutz model. The importance of describing the difference in the states of deoxygenated hemes between totally deoxygenated Hb and the intermediates in ligand binding is stressed. Kinetic results suggestingsting the presence of the intermediate states and the kinetic parameters for half liganded tetramers are introduced.抄録全体を表示PDF形式でダウンロード (599K) -
1974 年 14 巻 1 号 p. 36-42
発行日: 1974/01/25
公開日: 2009/05/25
ジャーナル フリーPDF形式でダウンロード (648K)
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