Search results
Results from the WOW.Com Content Network
The principle of mutability is the notion that any physical property which appears to follow a conservation law may undergo some physical process that violates its conservation. [ 1 ] [ 2 ] [ 3 ] John Archibald Wheeler offered this speculative principle after Stephen Hawking predicted the evaporation of black holes which violates baryon number ...
In the theory, mutation was the source of novelty, creating new forms and new species, potentially instantaneously, [1] in sudden jumps. [2] This was envisaged as driving evolution, which was thought to be limited by the supply of mutations.
In addition to these counts, data on the mutability and the frequency of the amino acids was obtained. [6] [7] The mutability of an amino acid is the ratio of the number of mutations it is involved in and the number of times it occurs in an alignment. [7] Mutability measures how likely an amino acid is to mutate acceptably.
A newer theory suggests that the selective pressure on the CCR5 Delta 32 mutation was caused by smallpox instead of the bubonic plague. [ 116 ] Malaria resistance : An example of a harmful mutation is sickle-cell disease , a blood disorder in which the body produces an abnormal type of the oxygen-carrying substance haemoglobin in the red blood ...
The French Transformisme was a term used by Jean Baptiste Lamarck in 1809 for his theory, and other 18th and 19th century proponents of pre-Darwinian evolutionary ideas included Denis Diderot, Étienne Geoffroy Saint-Hilaire, Erasmus Darwin, Robert Grant, and Robert Chambers, the anonymous author of the book Vestiges of the Natural History of ...
Geoffroy, a synthesiser, contended, in accordance with his theory of unity of plan in organic composition, that all animals are formed of the same elements, in the same number; and with the same connections: homologous parts, however they differ in form and size, must remain associated in the same invariable order.
Ian MacDougall Hacking CC FRSC FBA (February 18, 1936 – May 10, 2023) was a Canadian philosopher specializing in the philosophy of science.Throughout his career, he won numerous awards, such as the Killam Prize for the Humanities and the Balzan Prize, and was a member of many prestigious groups, including the Order of Canada, the Royal Society of Canada and the British Academy.
Some Hakomi leaders add two more principles, truth and mutability. [4] The Hakomi Method regards people as "self-organizing systems", organized psychologically around core memories, beliefs, and images; this core material expresses itself through habits and attitudes around which people unconsciously organize their behavior.