نتایج جستجو برای: baldwin
تعداد نتایج: 1634 فیلتر نتایج به سال:
Using a large sample of 26623 quasars with redshifts in the range 1.5 ≤ z ≤ 5.1 with C iv λ1549 Å emission line in Fifth Data Release of the Sloan Digital Sky Survey (SDSS), we investigate the cosmological evolution of the Baldwin Effect, i.e. the relation between the equivalent width (EW) of the C iv emission line and continuum luminosity. We confirm the earlier result that there exists a stro...
Two different, but related, evolutionary theories pertaining to phenotypic plasticity were proposed by James Mark Baldwin and Conrad Hal Waddington. Unfortunately, these theories are often confused with one another. Baldwin's notion of organic selection posits that plasticity influences whether an individual will survive in a new environment, thus dictating the course of future evolution. Herit...
Justin A. Joyce introduces the eighth volume of James Baldwin Review with a discussion US Supreme Court, misdirected uproar over Critical Race Theory, survey canonical dystopian novels, and symbolism masking during COVID-19.
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