Download e-book for iPad: Biogenesis Evolution Homeostasis: A Symposium by by A. Locker (auth.), A. Locker (eds.)

By A. Locker (auth.), A. Locker (eds.)

ISBN-10: 3540061347

ISBN-13: 9783540061342

ISBN-10: 3642952356

ISBN-13: 9783642952357

In 1963, 1965 and 1967 "Symposia on Quantitative Biology of Metabolism" have been geared up at the beautiful island of Helgoland (Biologische Anstalt) by way of me in col­ laboration with O. KINNE and F. KROGER. regrettably this necessary strategy in the direction of bringing jointly students in a standard approach ceased, frequently for monetary purposes, even if the necessity for and curiosity in meetings like those for the alternate of principles on precise subject matters unchangeably persists. So I needed to search for different chances and considered one of them was once to attempt to rearrange an identical con­ ference lower than the auspices of NASA. This establishment, besides the fact that, finally re-. handled, even supposing in the course of my dialogue with its representatives a brand new distinct subject received form. this is often the subject to which this quantity is dedicated: Bio­ genesis. it's also taken care of in a brand new means that most likely can be a version for. related undertakings: a symposium by means of correspondence. during this new method of clinical details alternate, manuscripts have been accrued by way of the editor and despatched to each contributor for his reviews. the writer may then answer through a concluding comment. So, repeatedly very beneficial principles about the themes of different papers should be accrued and it really is to be was hoping that this strategy has conferred upon this quantity a undeniable distinctiveness. after all, I needed to discover the contract with Springer-Verlag to not exceed the level of the quantity disbursed to us.

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Extra info for Biogenesis Evolution Homeostasis: A Symposium by Correspondence

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The points of V where all single AV = (g + 6 gi ) - V (g) are negative, are analogous to critical points, and those critical points that are not maximum correspond to saddle points. It is the latter that attract the evolution process and that make it stagnate away from the maximum (2). The very same kind of points are discussed by THOM as generating the elementary catastrophes for deterministic processes. Evolution is an optimization process. It has a particular process dynamic that is hard to analyze because of the non-uniform generation of increments bg.

THOM calls points such that an infinitesimal perturbation can result in different trajectories that belong to different basins catastrop'hic p'oints. Catastrophic points can exist on structurally stable attractors. In THOM's view the existence of catastrophic points makes possible the morphogenesis of a great variety of different forms (such as in embryogenesis) on the basis of a single deterministic process" •... " ( (16), p. 317) In a practical sense THOM hopes that "Our dynamical schemes - with the ideas of attractors, bifurcation, catastrophes ••.

And BIANCHI, L. : J. Theor. BioI. 28, 175 (1970). DISCUSSION FONG: Because of lack of explanation of many of the special concepts introduced it is difficult to understand some of the discussions without a previous knowledge of this line of development. I do feel that the concepts of relation and information can be unified (as I did in my paper in this volume). Relation is just one kind of information. The basic principles are the same. ROSEN: Without going into the specifics of the authors' developments it should be pointed out that their use of the term "relational" seems rather different from that used by RASHEVSKY in his discussions of "relational biology" starting in 1954.

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Biogenesis Evolution Homeostasis: A Symposium by Correspondence by A. Locker (auth.), A. Locker (eds.)


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