Results 81 to 90 of about 265,948 (327)

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Entropy production in random billiards

open access: yesDiscrete & Continuous Dynamical Systems - A, 2021
We introduce a class of random mechanical systems called random billiards to study the problem of quantifying the irreversibility of nonequilibrium macroscopic systems. In a random billiard model, a point particle evolves by free motion through the interior of a spatial domain, and reflects according to a reflection operator, specified in the model by ...
Timothy Chumley, Renato Feres
openaire   +4 more sources

On Entropic Framework Based on Standard and Fractional Phonon Boltzmann Transport Equations

open access: yesEntropy, 2019
Generalized expressions of the entropy and related concepts in non-Fourier heat conduction have attracted increasing attention in recent years. Based on standard and fractional phonon Boltzmann transport equations (BTEs), we study entropic functionals ...
Shu-Nan Li, Bing-Yang Cao
doaj   +1 more source

Entropy production in systems with long range interactions

open access: yes, 2017
On a fine grained scale the Gibbs entropy of an isolated system remains constant throughout its dynamical evolution. This is a consequence of Liouville's theorem for Hamiltonian systems and appears to contradict the second law of thermodynamics.
Levin, Yan, Pakter, Renato
core   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Entropy Production in Thermostats II [PDF]

open access: yesJournal of Statistical Physics, 2007
We show that an arbitrary Anosov Gaussian thermostat close to equilibrium has positive entropy poduction unless the external field $E$ has a global potential. The configuration space is allowed to have any dimension and magnetic forces are also allowed. We also show the following non-perturbative result. Suppose a Gaussian thermostat satisfies \[K_{w}(
Gabriel P. Paternain   +1 more
openaire   +3 more sources

Entropy Production in the Theory of Heat Conduction in Solids

open access: yesEntropy, 2016
The evolution of the entropy production in solids due to heat transfer is usually associated with the Prigogine’s minimum entropy production principle.
Federico Zullo
doaj   +1 more source

Entropy Production and Viscosity of A Dilute Gas

open access: yes, 2012
It is known that the viscosity of a dilute gas can be derived by using kinetic theory. We present here a new derivation by using two entropy production principles: the steepest entropy ascent (SEA) principle and the maximum entropy production (MEP ...
Zhang, Yong-Jun
core   +1 more source

Purification tags markedly affect self‐aggregation of CPEB3

open access: yesFEBS Letters, EarlyView.
Although recombinant proteins are used to study protein aggregation in vitro, uncleaved tags can interfere with accurate interpretation. Our findings demonstrate that His₆‐GFP and His₁₂ tags significantly affect liquid droplet and amyloid fibril formation in the intrinsically disordered region (IDR) of mouse cytoplasmic polyadenylation element‐binding ...
Harunobu Saito   +6 more
wiley   +1 more source

Generalized Entropy Production in Collisionless Plasma Flows and Turbulence

open access: yesPhysical Review X, 2022
Collisionless plasmas exhibit nonthermal and anisotropic particle distributions after being energized; as a consequence, they enter a state of low Boltzmann-Gibbs (BG) entropy relative to the thermal state.
Vladimir Zhdankin
doaj   +1 more source

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