Книга: Child Charles Manning «Senescence and Rejuvenescence»

Senescence and Rejuvenescence

Серия: "-"

Книга представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи" :помарки, кляксы и т. п.

Издательство: "Книга по Требованию" (2011)

Купить за 1321 руб в My-shop

Другие книги автора:

КнигаОписаниеГодЦенаТип книги
The Origin and Development of the Nervous SystemКнига представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по… — Книга по Требованию, - Подробнее...20111314бумажная книга

Child, Charles Manning

▪ American zoologist
born Feb. 2, 1869, Ypsilanti, Mich., U.S.
died Dec. 19, 1954, Palo Alto, Calif.

      American zoologist who developed the axial gradient theory of regeneration and development, a physiological explanation of the ordered re-creation of animal parts following an injury.

      While at the University of Chicago, where he spent his academic life (1895–1934), Child experimented extensively with invertebrates such as planarian flatworms and freshwater hydras, which show a remarkable ability to regenerate themselves from small fragments. He observed that characteristic parts, such as a head or a tail, usually grew from that portion of the fragment where the same part had previously been joined, a phenomenon known as polarity. On the basis of his experiments, Child advanced a theory of antero-posterior dominance, stating that physiological activity in a multicellular organism increases along its axis from bottom to top (or tail to head), and that this gradient of activity in a tissue fragment determines the position of structures growing from it. He felt that the gradient was caused by the action of a chemical factor on cell functions. Although Child was not able to demonstrate how gradients were formed in the first place, his theory directed many investigators to seek to understand developmental processes in physico-chemical terms. Child was particularly influential in combining physiological and developmental theories of cell recognition and pattern formation.

      Among his publications are Individuality in Organisms (1915) and Patterns and Problems of Development (1941).

* * *

Источник: Child, Charles Manning

См. также в других словарях:

  • Child, Charles Manning — ▪ American zoologist born Feb. 2, 1869, Ypsilanti, Mich., U.S. died Dec. 19, 1954, Palo Alto, Calif.       American zoologist who developed the axial gradient theory of regeneration and development, a physiological explanation of the ordered re… …   Universalium

  • Manning Clark — in his study in about 1988 Charles Manning Hope Clark, AC (3 March 1915 – 23 May 1991), an Australian historian, was the author of the best known general history of Australia, his six volume A History of Australia, published between 1962 and 1987 …   Wikipedia

  • Charles Stewart (Canadian politician) — For the Canadian Member of Parliament for Humboldt, see Charles Wallace Stewart. For the MLA from 1975 to 1982, see Charles Stewart (Alberta politician). For the MLA from 1905 to 1906, see Charles Stuart (politician). For other uses, see Charles… …   Wikipedia

  • Charles H. Percy — Charles Harting Percy United States Senator from Illinois In office January 3, 1967 – January 3, 1985 Preceded by Paul Douglas …   Wikipedia

  • Charles Logan (24 character) — Charles Logan 24 character Gregory Itzin as Charles Logan Portrayed by Gregory Itzin Appearances …   Wikipedia

  • Olivia Manning — This article is about the British novelist. For the wife of American football quarterback Archie Manning and mother of Cooper, Peyton, and Eli Manning, see their respective articles. Olivia Manning …   Wikipedia

Поделиться ссылкой на выделенное

Прямая ссылка:
… Нажмите правой клавишей мыши и выберите «Копировать ссылку»