منابع مشابه
Into the fold
249 More than 40 years ago, US biochemist Christian Anfinsen published his thermodynamic hypothesis of protein folding: that the native, or tertiary, structure of a protein could, in principle, be determined from its amino-acid sequence alone (Anfinsen et al, 1961). On the basis of his theory that the conformation is in a thermodynamic equilibrium in its cellular environment, Anfinsen concluded...
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Like many small countries, croatia faces the dual challenge of creating a sustainable economy in a globalized world and of providing its citizens with a secure future. this challenge is considerable and is not made easier by the fact that croatia declared independence only in 1991, and secured it only after a violent war ending in 1995. the country is now a candidate for membership of the Europ...
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dously successful in addressing the problem of component, board and system level interconnect testing. The standard is widely embraced by the semiconductor industry and virtually any logic component can be found in an 1149.1 compliant version. The glaring exception is DRAM devices. This prevents a sound, structured and standardized interconnect test methodology from being applied to a significa...
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A search through the psychology literature reveals a number of current popular evolutionary theories on the origin of schizophrenia. These Darwinian theories assume the fact of evolution, and then from this starting point go on to make unsubstantiated and implausible speculations, often untestable or practically so. Where testable, the scenarios are easily refuted, as they do not correlate with...
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Introduction though their unusual syncitium might be peculiarly conducive to such propagation, some evidence suggests When discussing organic evolution the only point of hexactinellids are the most primitive of the sponges agreement seems to be: " It happened. " Thereafter, there (Mü ller et al., 1998). With such features, sponges seem is little consensus, which at first sight must seem rather ...
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ژورنال
عنوان ژورنال: Science
سال: 2021
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.371.6529.581-d