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Stabilizing selection (not to be confused with negative or purifying selection [1] [2]) is a type of natural selection in which the population mean stabilizes on a particular non-extreme trait value. This is thought to be the most common mechanism of action for natural selection because most traits do not appear to change drastically over time ...
In natural selection, negative selection [1] or purifying selection is the selective removal of alleles that are deleterious. This can result in stabilising selection through the purging of deleterious genetic polymorphisms that arise through random mutations.
The first and most common function to estimate fitness of a trait is linear ω =α +βz, which represents directional selection. [1] [10] The slope of the linear regression line (β) is the selection gradient, ω is the fitness of a trait value z, and α is the y-intercept of the fitness function.
CHRISTOPHER HEDGES, et al., Plaintiffs-Appellees, v. BARACK OBAMA, individually and as representative of the United States of America, et al., Defendants. On Appeal from the United States District Court for the Southern District of New York, Case No. 12-cv-331 Brief of Amici Curiae Senators John McCain, Lindsey Graham, and Kelly Ayotte
An Ohio mother is mourning the loss of her two adult children and is focused on getting them "justice" after they were both shot and killed this week. On Tuesday, Dec. 10, after 7 p.m. local time ...
The Rosenberg self-esteem scale (RSES), developed by the sociologist Morris Rosenberg, [1] is a self-esteem measure widely used in social science research. It uses a scale of 0–30, where a score less than 15 may indicate problematic low self-esteem. [2]
A staffer for a U.S. House of Representatives Democrat was arrested at the Capitol on Monday when a regular security check turned up ammunition in his bag, the Capitol Police said. The police ...
Timothée Chalamet's guest picker appearance was seemingly set up to help him promote his upcoming movie, but the actor shocked the audience with an impressive set of well-informed picks.