Pierre Vidal – författare
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22 produkter
22 produkter
Inbunden, Franska, 2022
471 kr
Skickas inom 5-8 vardagar
Häftad, Franska, 2022
345 kr
Skickas inom 5-8 vardagar
Inbunden, Franska, 2022
471 kr
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Häftad, Franska, 2022
357 kr
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Häftad, Engelska, 2025
239 kr
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Inbunden, Engelska, 2025
414 kr
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Häftad, Engelska, 2025
271 kr
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Inbunden, Engelska, 2025
430 kr
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319 kr
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Häftad, Engelska, 2026
335 kr
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Häftad, Franska, 2011
300 kr
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Häftad, Franska, 2013
286 kr
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Häftad, Engelska, 2011
343 kr
Skickas inom 5-8 vardagar
E-bok
PDF, Engelska, 2012712 kr
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Many facts were at the origin of the present monograph. The ftrst is the beauty of maple leaves in Quebec forests in Fall. It raised the question: how does nature create and reproduce such beautiful patterns? The second was the reading of A. Lindenmayer''s works on L systems. Finally came the discovery of "the secrets of DNA" together with many stimulating ex changes with biologists. Looking at such facts from the viewpoint of recursive numerical systems led to devise a simple model based on six elementary operations organized in a generating word, the analog of the program of a computer and of the genetic code of DNA in the cells of a living organism. It turned out that such a model, despite its simplicity, can account for a great number of properties of living organisms, e.g. their hierarchical structure, their ability to regenerate after a trauma, the possibility of cloning, their sensitivity to mutation, their growth, decay and reproduction. The model lends itself to analysis: the knowledge of the generating word makes it possible to predict the structure of the successive developmental stages of the system; and to synthesis: a speciftc type of structure can be obtained by systematically constructing a generating word that produces it. In fact the model here proposed is coherent with the fundamental assumptions of cellular biology and in particular with recent discoveries concerning DNA, which in the light of our model behaves like a very elaborate generating word.
Häftad, Engelska, 2011
545 kr
Skickas inom 10-15 vardagar
Many facts were at the origin of the present monograph. The ftrst is the beauty of maple leaves in Quebec forests in Fall. It raised the question: how does nature create and reproduce such beautiful patterns? The second was the reading of A. Lindenmayer's works on L systems. Finally came the discovery of "the secrets of DNA" together with many stimulating ex changes with biologists. Looking at such facts from the viewpoint of recursive numerical systems led to devise a simple model based on six elementary operations organized in a generating word, the analog of the program of a computer and of the genetic code of DNA in the cells of a living organism. It turned out that such a model, despite its simplicity, can account for a great number of properties of living organisms, e.g. their hierarchical structure, their ability to regenerate after a trauma, the possibility of cloning, their sensitivity to mutation, their growth, decay and reproduction. The model lends itself to analysis: the knowledge of the generating word makes it possible to predict the structure of the successive developmental stages of the system; and to synthesis: a speciftc type of structure can be obtained by systematically constructing a generating word that produces it. In fact the model here proposed is coherent with the fundamental assumptions of cellular biology and in particular with recent discoveries concerning DNA, which in the light of our model behaves like a very elaborate generating word.
Häftad, Franska, 2018
487 kr
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Häftad, Franska, 2018
363 kr
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Häftad, Franska, 2016
178 kr
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Häftad, Franska, 2018
363 kr
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Häftad, Franska, 2013
328 kr
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Häftad, Franska, 2020
213 kr
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Häftad, Franska, 2022
423 kr
Skickas inom 5-8 vardagar