منابع مشابه
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For the past few years, germany’s export-oriented economy has undergone impressive growth as the demand for its engineering products has increased globally. However, although this development has driven down national unemployment, it has also resulted in a labour shortage that has german companies urgently looking for skilled workers and engineers: vacancies for engineers rose by nearly 30% in ...
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A hard look in the mirror, as they say, is good for fitness and vitality. The time seems ripe, then, fifty years after the birth of modern linguistics, to reexamine its foundations. Or rather, the rubble, as the editors of Probabilistic linguistics suggest : corpus statistics, Markov chains, information theory, and the very notion of probability that were supposedly buried by the Chomskyan land...
متن کاملBlack Crunch
We study the growth of fluctuations in collapsing cosmologies, extending old work of Lifschitz and Khalatnikov. As examples of systems where the fluctuations have a different composition than the background we study scalar fields with general improvement terms. Fluctuations always grow, and often dominate the homogeneous background. We argue that even for very dilute fluctuations, scattering pr...
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One of the major efforts of researchers in recent years has been to determine the economic value of natural resources in an effort to persuade policymakers that these resources are important in decisions about development. But many species in particular environments are being lost so quickly that their value may be undervalued, according to a new report. And Clive Hambler and colleagues at the ...
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ژورنال
عنوان ژورنال: EMBO reports
سال: 2008
ISSN: 1469-221X,1469-3178
DOI: 10.1038/embor.2008.216