Download e-book for kindle: A Cybernetic View of Biological Growth: The Maia Hypothesis by Tony Stebbing

By Tony Stebbing

Maia is the tale of an idea, and its improvement right into a operating speculation, that offers a cybernetic interpretation of ways development is managed. development on the lowest point is managed through regulating the speed of progress. entry to the output of keep watch over mechanisms is supplied through perturbing the becoming organism, after which filtering out the results to progress expense. The output of the expansion regulate mechanism is then available for interpretation and modeling. Perturbation experiments were used to supply interpretations of hormesis, the neutralization of inhibitory load and bought tolerance to poisonous inhibition, and catch-up development. The account starts with an creation to cybernetics masking the law of development and inhabitants elevate in animals and guy and describes this new method of entry the regulate of progress techniques. This ebook is acceptable for postgraduate scholars of organic cybernetics and researchers of organic progress, endocrinology, inhabitants ecology and toxicology.

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Sample text

Not only was the reproductive potential made possible by large numbers of gametes, seeds and eggs, but the survival of the young during their development into adults was far less than would be expected. It followed that there must be considerable mortality in the struggle for survival. For Darwin, and for Wallace, here was the raw material by which natural processes might select those individuals with more favourable genes, in preference to those that were less well adapted, in a way that would lead to the evolution of new species.

Nothing green remained on tree or plant in all the land of Egypt. Locusta migratoria swarms when crowding makes conditions for the species in its original habitat intolerable. Vast numbers may gather and then migrate as a swarm to cover great distances in the search for new habitats. In 1869 such a swarm of locusts reached England, but perhaps the greatest swarm ever described is that of a swarm observed on 25 November 1889 from the ship MV Golconda in the Red Sea. T. Carruthers, who wrote an account of what he saw in a letter to the journal Nature.

So it is that more complex organisms, with more levels of organisation, may be expected to have more powerful responses to meet environmental challenge and change. At the same time they have become increasingly independent of the natural environment: unending stresses, extreme conditions and continual fluctuations. Evolution is progressive, and improvements in the independence of internal processes from environmental variation have led to a trend of increasing complexity. GROWTH PHENOMENA FOR WHICH MAIA OFFERS AN EXPLANATION Later chapters describe those phenomena that Maia helps to explain.

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