Results 81 to 90 of about 11,033,430 (362)

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

Existence and multiplicity of solutions for semilinear elliptic equations with Neumann boundary conditions

open access: yesElectronic Journal of Differential Equations, 2015
This article shows the existence of solutions by the least action principle, for semilinear elliptic equations with Neumann boundary conditions, under critical growth and local coercive conditions.
Qin Jiang, Sheng Ma
doaj  

Lévy Femtoscopy with PHENIX at RHIC

open access: yesUniverse, 2017
In this paper we present the measurement of charged pion two-particle femtoscopic correlation functions in s N N = 200 GeV Au + Au collisions in 31 average transverse mass bins, separately for positive and negative pion pairs.
Máté Csanád
doaj   +1 more source

Asymptotically critical points and their multiplicity [PDF]

open access: yesTopological Methods in Nonlinear Analysis, 2002
In this paper we study multiplicity results for the critical points of a functional via topological information which ensures multiplicity of critical points for a sequence of approximating functionals. The main statement is quite simple, and it seems it could be usefully compared with a large class of problems.
Marino A., MUGNAI, Dimitri
openaire   +5 more sources

Ising nematic quantum critical point in a metal: a Monte Carlo study [PDF]

open access: yes, 2015
The Ising nematic quantum critical point (QCP) associated with the zero temperature transition from a symmetric to a nematic {\it metal} is an exemplar of metallic quantum criticality.
Y. Schattner   +3 more
semanticscholar   +1 more source

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

open access: yesFEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp   +5 more
wiley   +1 more source

The BEST framework for the search for the QCD critical point and the chiral magnetic effect [PDF]

open access: yes, 2021
X. An   +42 more
semanticscholar   +1 more source

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

open access: yesFEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg   +2 more
wiley   +1 more source

Estimation of bulk modulus of DME on the basis of the sound speed measurement in a wide range of pressures and temperatures including the critical point

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Sound speed is one of the most important thermodynamic properties for developing a fuel injection system and it is often used to validate the equation of state.
Shinsuke KIKUCHI   +7 more
doaj   +1 more source

Scaled variance, skewness, and kurtosis near the critical point of nuclear matter [PDF]

open access: yes, 2015
The van der Waals (VDW) equation of state predicts the existence of a first-order liquid-gas phase transition and contains a critical point. The VDW equation with Fermi statistics is applied to a description of the nuclear matter.
V. Vovchenko   +3 more
semanticscholar   +1 more source

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