Results 71 to 80 of about 4,941,394 (347)

Several identities in statistical mechanics

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
In an earlier paper concerning a solvable Inodel in statistical mechanics, Miwa and Jimbo state a theta-function identity which they have checked to the 200th power, but of which they do not have a proof.
M. D. Hirschhorn
doaj   +1 more source

Statistical mechanics for non-Hermitian quantum systems

open access: yesPhysical Review Research, 2023
We present a systematic study of statistical mechanics for non-Hermitian quantum systems. Our work reveals that the stability of a non-Hermitian system necessitates the existence of a single path-dependent conserved quantity, which, in conjunction with ...
Kui Cao, Su-Peng Kou
doaj   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

Conservation laws shape dissipation

open access: yesNew Journal of Physics, 2018
Starting from the most general formulation of stochastic thermodynamics—i.e. a thermodynamically consistent nonautonomous stochastic dynamics describing systems in contact with several reservoirs—we define a procedure to identify the conservative and the
Riccardo Rao, Massimiliano Esposito
doaj   +1 more source

Generalized statistical mechanics for superstatistical systems [PDF]

open access: yes, 2010
Mesoscopic systems in a slowly fluctuating environment are often well described by superstatistical models. We develop a generalized statistical mechanics formalism for superstatistical systems, by mapping the superstatistical complex system onto a system of ordinary statistical mechanics with modified energy levels.
arxiv   +1 more source

Robert W. Zwanzig: Formulated nonequilibrium statistical mechanics [PDF]

open access: yesProc. Natl. Acad. Sci. USA 111, 115672 (2014), 2014
This article is a brief Retrospective on the life and work of Robert W. Zwanzig, who formulated nonequilibrium statistical mechanics and who passed away in May of this year.
arxiv   +1 more source

Rényi statistics in equilibrium statistical mechanics [PDF]

open access: yesPhysics Letters A, 2010
The Renyi statistics in the canonical and microcanonical ensembles is examined in the general case and in particular for the ideal gas. In the microcanonical ensemble the Renyi statistics is equivalent with the Boltzmann-Gibbs statistics. By the exact analytical results for the ideal gas, it is shown that in the canonical ensemble in the thermodynamic ...
A.S. Parvan   +2 more
openaire   +3 more sources

miRNA‐29 regulates epidermal and mesenchymal functions in skin repair

open access: yesFEBS Letters, EarlyView.
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan   +10 more
wiley   +1 more source

Statistical Mechanics of Discrete Multicomponent Fragmentation

open access: yesCondensed Matter, 2020
We formulate the statistics of the discrete multicomponent fragmentation event using a methodology borrowed from statistical mechanics. We generate the ensemble of all feasible distributions that can be formed when a single integer multicomponent mass is
Themis Matsoukas
doaj   +1 more source

STATISTICAL MECHANICS OF THE VACUUM [PDF]

open access: yesModern Physics Letters B, 2012
The vacuum is full of virtual particles which exist for short moments of time. In this paper, we construct a chaotic model of vacuum fluctuations associated with a fundamental entropic field that generates an arrow of time. The dynamics can be physically interpreted in terms of fluctuating virtual momenta. This model leads to a generalized statistical
openaire   +3 more sources

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