Results 71 to 80 of about 374,288 (363)

General Three-Body Problem in Conformal-Euclidean Space: New Properties of a Low-Dimensional Dynamical System

open access: yesParticles
Despite the huge number of studies of the three-body problem in physics and mathematics, the study of this problem remains relevant due to both its wide practical application and taking into account its fundamental importance for the theory of dynamical ...
Ashot S. Gevorkyan   +2 more
doaj   +1 more source

Free Convection and Irreversibility Analysis inside a Circular Porous Enclosure

open access: yesEntropy, 2003
We investigate the nature of heat transfer and entropy generation for natural convection in a two-dimensional circular section enclosure. The enclosure is assumed to fill with porous media.
Shohel Mahmud, Roydon Andrew Fraser
doaj   +1 more source

Quantum Theory of Irreversibility

open access: yes, 2005
A generalization of the Gibbs-von Neumann relative entropy is proposed based on the quantum BBGKY [Bogolyubov-Born-Green-Kirkwood-Yvon] hierarchy as the nonequilibrium entropy for an N-body system.
A. Pérez-Madrid   +14 more
core   +2 more sources

Irreversibility in dynamical phases and transitions

open access: yesNature Communications, 2019
Living and non-living active matter consumes energy at the microscopic scale to drive emergent, macroscopic behavior including traveling waves and coherent oscillations.
Daniel S. Seara, B. Machta, M. Murrell
semanticscholar   +1 more source

Overview of molecular signatures of senescence and associated resources: pros and cons

open access: yesFEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas   +6 more
wiley   +1 more source

Irreversible Simulated Tempering [PDF]

open access: yesJournal of the Physical Society of Japan, 2016
8 pages, 9 ...
Sakai, Yuji, Hukushima, Koji
openaire   +2 more sources

Characterizing Irreversibility in Open Quantum Systems [PDF]

open access: yes, 2018
Irreversibility is a fundamental concept with important implications at many levels. It pinpoints the fundamental difference between the intrinsically reversible microscopic equations of motion and the unidirectional arrow of time that emerges at the ...
T. B. Batalhão   +5 more
semanticscholar   +1 more source

The photoswitchable cannabinoid azo‐HU308 enables optical control of Ca2+ dynamics in INS‐1 β‐cells via off‐target effects on TRPC channels

open access: yesFEBS Open Bio, EarlyView.
Light activation of the photoswitchable cannabinoid ligand azo‐HU308 triggers Ca2+ influx in pancreatic β‐cells through TRPC channels, independent of CB2 cannabinoid receptors. This reveals a non‐GPCR pathway for cannabinoid modulation of β‐cell Ca2+ dynamics and establishes azo‐HU308 as an optical tool to study cannabinoid signaling through TRP ...
Alexander E. G. Viray, James A. Frank
wiley   +1 more source

Process Complexity

open access: yesComplexity, Governance & Networks, 2022
We develop the ontology of “process complexity” and describe how the dynamics of “becoming” can be framed as the emerging, stabilising, and ultimate dissolving of “patterns of relationships.” By extending traditional complexity thinking through ...
Jean Boulton
doaj   +1 more source

The Irreversibility Premium [PDF]

open access: yesSSRN Electronic Journal, 2008
Abstract When investment is irreversible, theory suggests that firms will be “reluctant to invest.” This reluctance creates a wedge between the discount rate guiding investment decisions and the standard Jorgensonian user cost (adjusted for risk). We use the intertemporal tradeoff between benefits and costs of changing the capital stock to estimate ...
Robert S. Chirinko, Huntley Schaller
openaire   +3 more sources

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