Results 11 to 20 of about 1,835,390 (328)
Relating the thermodynamic arrow of time to the causal arrow [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2008 Consider a Hamiltonian system that consists of a slow subsystem S and a fast subsystem F. The autonomous dynamics of S is driven by an effective Hamiltonian, but its thermodynamics is unexpected. We show that a well-defined thermodynamic arrow of time (second law) emerges for S whenever there is a well-defined causal arrow from S to F and the back ...
Allahverdyan, Armen E., Janzing, Dominik
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Entropy, 2012 Quantum gravity, the initial low entropy state of the Universe, and the problem of time are interlocking puzzles. In this article, we address the origin of the arrow of time from a cosmological perspective motivated by a novel approach to quantum gravitation.
Chia-Hsiung Tze +3 more
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Clinical Practice and Cases in Emergency Medicine, 2019 A 33-year-old male was brought to the emergency department after a penetrating arrow injury to the chest. Initial evaluation revealed the arrow was penetrating the sternum, lung, and aortic arch. Because the patient was in a remote area, timely transfer to a specialized center for definitive operative repair was delayed approximately 24 hours ...
Wangdi, Sherab +2 more
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The Astrophysical Journal, 1976 A model of the universe which resolves the apparent contradiction between the historical and the thermodynamic arrows of time is presented. Both arrows are reconciled with the almost time-symmetric character of physical laws at the microscopic level. The theory implies that the universe is unfolding in time but not unraveling. (BJG)
David Layzer
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EURASIP Journal on Information Security, 2008 This paper makes an account of the design and investigations done for the still image watermarking technique used in the 2nd edition of the BOWS challenge. This technique is named "broken arrows" for some reasons given later on, and abbreviated "BA." This zero-bit algorithm is an implementation of a recent theoretical result by Merhav and Sabbag (2008)
Furon, Teddy, Bas, Patrick
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European Heart Journal, 2007 A 75-year-old man underwent yearly follow-up carotid Duplex scanning after carotid endarterectomy (CEA), performed 3 years ago, because of the presence of a large atherosclerotic plaque at the bifurcation of left common carotid artery with severe stenosis (80%). A residual atheroma was present post-CEA with a small stenosis.
Mumoli, Nicola +2 more
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Journal of Functional Programming, 2010 AbstractWe introduce the arrow calculus, a metalanguage for manipulating Hughes's arrows with close relations both to Moggi's metalanguage for monads and to Paterson's arrow notation. Arrows are classically defined by extending lambda calculus with three constructs satisfying nine (somewhat idiosyncratic) laws; in contrast, the arrow calculus adds four
Lindley, Sam, Wadler, P., Yallop, J.
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Arrow Contraction and Expansion in Tropical Diagrams [PDF]
, 2019 Arrow contraction applied to a tropical diagram of probability spaces is a modification of the diagram, replacing one of the morphisms by an isomorphims, while preserving other parts of the diagram.
Matveev, Rostislav +1 more
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Social Choice and Welfare, 2017 This paper describes an unknown episode in the development of the theory of social choice. In the Summer 1949, while at RAND, Quine worked on Arrow’s (im)possibility theorem. This work was eventually published as a paper on (applied) set theory totally disconnected from social choice.
Maurice Salles, Maurice Salles
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