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Survival analysis

Survival analysis

A class of statistical procedures for estimating the survival function (function of time, starting with a population 100% well at a given time and providing the percentage of the population still well at later times). The survival analysis is then used for making inferences about the effects of treatments, prognostic factors, exposures, and other covariates on the function.


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Life span of DNA

... damage can contribute to aging, nuclear DNA is the main subject of this analysis. Nuclear DNA damage can contribute to aging either indirectly (by ... potentially harmful mutations in the cell's genome, which affect the survival of its daughter cells after it undergoes mitosis. As a consequence, ...

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by suzidoc8
Mon Jul 23, 2012 2:35 pm
 
Forum: Molecular Biology
Topic: Life span of DNA
Replies: 2
Views: 5261

Theories - Origin of Life

... some fitness function to begin to arise. This is where your probability analysis falters. Your analogy refers to the same mutation arising. (the ... word “most”) is in contradiction with the first. For NS to select for survival or “fitness” whatever that should mean, the mutation needs to be ...

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by AstraSequi
Tue Mar 27, 2012 2:30 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 893150

Theories - Origin of Life

... the larger fact that some mutations increase an organism's chance for survival. The sickle cell allele is just the best example of the crucial ... are not. Molecular Evolution makes this point. There is no semantic analysis of the words in that article which could lead to the conclusion ...

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by Luxorien
Sat Mar 10, 2012 5:03 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 893150

Re: Theories - Origin of Life

... some fitness function to begin to arise. This is where your probability analysis falters. Your analogy refers to the same mutation arising. (the ... it is in the nature of most random mutations. For NS to select for survival or “fitness” whatever that should mean, the mutation needs to be ...

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by scottie
Sun Mar 04, 2012 7:42 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 893150

Re: Theories - Origin of Life

... was the result of new genes created by random mutation and differential survival. (Moss 2003, p. 185) Question—Has that belief been supported by the empirical evidence. The comparative genome analysis of the Human Genome project has produced some unexpected results. Lets ...

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by scottie
Wed Dec 21, 2011 10:30 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 560
Views: 893150
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