منابع مشابه
Thermodynamics and efficiency of an autonomous on-chip Maxwell's demon.
In his famous letter in 1870, Maxwell describes how Joule's law can be violated "only by the intelligent action of a mere guiding agent", later coined as Maxwell's demon by Lord Kelvin. In this letter we study thermodynamics of information using an experimentally feasible Maxwell's demon setup based a single electron transistor capacitively coupled to a single electron box, where both the syste...
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We present an experimental realization of an autonomous Maxwell's demon, which extracts microscopic information from a system and reduces its entropy by applying feedback. It is based on two capacitively coupled single-electron devices, both integrated on the same electronic circuit. This setup allows a detailed analysis of the thermodynamics of both the demon and the system as well as their mu...
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on the shelves of any evolutionary biologist or student of the subject and you are likely to see a textbook by Mark Ridley. But Ridley, formerly at Emory University in Atlanta, and now in Oxford, has had another book in his mind for quite some time. He believes there are some ideas sparked by the Austrian monk, Gregor Mendel, that are of broader interest and has set out to explore some of them ...
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The mechanisms by which RNA polymerase moves along DNA during elongation have been difficult to determine experimentally. In this issue of Cell, Bar-Nahum et al. (2005) show that back and forth sliding of RNA polymerase on DNA may be coupled to bending of an alpha helix, which can alternately occlude and expose the NTP binding site. Transcription factors can regulate elongation by modulating th...
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We discuss some of the choices that arise when one tries to make the idea of physical determinism more precise. Broadly speaking, ‘ontological’ notions of determinism are parameterized by one’s choice of mathematical ideology, whilst ‘epistemological’ notions of determinism are parameterized by the choice of an appropriate notion of computability. We present some simple examples to show that th...
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ژورنال
عنوان ژورنال: Nature Nanotechnology
سال: 2016
ISSN: 1748-3387,1748-3395
DOI: 10.1038/nnano.2016.10