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What does PE stand for?

PE stands for Punctuated Equilibrium

This definition appears frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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We have 142 other meanings of PE in our Acronym Attic

Samples in periodicals archive:

According to the theory of punctuated equilibrium, occasional asteroid impacts might accelerate the rate of biological evolution by disrupting a planet's environment to the point where species must try new adaptation strategies.
Written for scholars of scientific and philosophical disciplines, this volume explores Gould's thoughts on punctuated equilibrium, human equality and intelligence testing, "spandrels" and "exaptation" and the debate between science and fundamentalist Christianity.
The natural history of knee osteoarthritis often is a process of punctuated equilibrium, with periods of metabolic activation and progression, interspersed with periods of relative nonprogression and metabolic dormancy.
2) We have resisted becoming a participant in such a ratcheting process, by which periods of punctuated equilibrium periodically occur in which the law lurches in the direction favored by Justice Douglas and his philosophical allies, during which new precedents arise bearing little more than a random relationship to the written law, only to be followed by periods of conservative judicial rule in which these new precedents are affirmed in the interests of stare decisis and become a permanent fixture of the law.
While punctuated equilibrium (PE) reflected in the fossil record is a strong negative evidence to the underlying principle of phyletic gradualism (PG) enshrined in the evolutionary theory, the phenomenon of cell-directed mutagenesis challenges another tenet of the theory, namely, the requirement of stochastic mutations produced by extra-cellular agents to create heritable changes in the organism.