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Random walk

random walk

(Science: cell biology) A description of the path followed by a cell or particle when there is no bias in movement. The direction of movement at any instant is not influenced by the direction of travel in the preceding period. If changes of direction are very frequent, then the displacement will be small, unless the speed is very great and the object will appear to vibrate on the spot. Although the behaviour of moving cells in a uniform environment can be described as a random walk in the long term, this is not true in the short term because of persistence.


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Creation of species through programmed evolution

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by PAWahid
Mon Jan 23, 2012 3:27 pm
 
Forum: Evolution
Topic: Creation of species through programmed evolution
Replies: 15
Views: 4794

Re: Theories - Origin of Life

... a more regular principle-based process of change than the gradual random walk of 19th and 20th Century theories . Such a new vision is not all-encompassing because ...

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by scottie
Mon May 23, 2011 8:28 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 548
Views: 535478

Re: Theories - Origin of Life

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by scottie
Fri May 20, 2011 9:30 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
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Theories - Origin of Life

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by BDDVM
Fri Apr 22, 2011 7:30 pm
 
Forum: Evolution
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Questions about evolution and epigenetics

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by mgustavsson
Tue Sep 29, 2009 5:18 pm
 
Forum: Evolution
Topic: Questions about evolution and epigenetics
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