منابع مشابه
Totally < ω-computably enumerable degrees and m-topped degrees
In this paper we will discuss recent work of the authors (Downey, Greenberg and Weber [8] and Downey and Greenberg [6, 7]) devoted to understanding some new naturally definable degree classes which capture the dynamics of various natural constructions arising from disparate areas of classical computability theory. It is quite rare in computability theory to find a single class of degrees which ...
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Growth of arrays of pagoda-topped tetragonal Cu nanopillar (length 1- 6 mum; width 150 +/- 25 nm) with {100} side faces on Au/glass is achieved by a simple electrochemical reduction of CuCl(2)(aq) by Al(s) in aqueous dodecyltrimethylammonium chloride. Field-emission measurement shows that the Cu nanopillars can emit electrons (10 muA cm(-2)) at a turn-on field of 12.4 V mum(-1) with a calculate...
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Stratocumulus clouds are an integral component of the climate system. They affect both its mean state and variability, and are central to many questions related to climate change. They are also very difficult to represent with fidelity in modern forecast systems and climate models. Their importance is associated with what one may call long-term climatic robustness, which is in marked contrast t...
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The generation of high-repetition-rate optical frequency combs with an ultra-broad, coherent and smooth spectrum is important for many applications in optical communications, radio-frequency photonics and optical arbitrary waveform generation. Usually, nonlinear broadening techniques of comb-based sources do not provide the required flatness over the whole available bandwidth. Here we present a...
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Background: Fatty acid mobilization and inflammatory response of adipose tissues vary in various depots, hence the response of fat-tailed and thin-tailed sheep breeds to different energy balances was hypothesized to be different due to differences in proportion and metabolism of various adipose depots in these breeds which may affect whole body insulin sensitivity. Objective: Current study aime...
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ژورنال
عنوان ژورنال: Nature Reviews Genetics
سال: 2003
ISSN: 1471-0056,1471-0064
DOI: 10.1038/nrg1121