Results 101 to 110 of about 6,342,270 (352)

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

Resonant (p,q)-equations with Robin boundary condition

open access: yesElectronic Journal of Differential Equations, 2018
We consider a nonlinear nonhomogeneous Robin problem that has the sum of a p-Laplacian and a q-Laplacian (a (p,q)-equation). The reaction term is a Caratheodory function which is resonant at $\pm\infty$ with respect to any nonprincipal variational ...
Michael E. Filippakis   +1 more
doaj  

Let’s Talk! Facilitating a Faculty Learning Community Using a Critical Friends Group Approach

open access: yesInternational Journal for the Scholarship of Teaching and Learning, 2014
This article focuses on the complex process of facilitating a Critical Friends Group as a form of a professional learning community by teacher education faculty.
Julie Moore, Joya Carter-Hicks
doaj   +1 more source

Critical percolation on certain non-unimodular graphs [PDF]

open access: yes, 2005
An important conjecture in percolation theory is that almost surely no infinite cluster exists in critical percolation on any transitive graph for which the critical probability is less than 1. Earlier work has established this for the amenable cases Z^2
Peres, Yuval   +2 more
core   +5 more sources

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

Critical phenomena in the Dyson hierarchical model and renormalization group [PDF]

open access: yesarXiv, 2010
We review some results on the critical phenomena in the Dyson hierarchical model and renormalization group.
arxiv  

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

Entre experiencia y estructura: sufrimiento social, identidades colectivas y justicia en Iris Marion Young

open access: yesDigithum, 2019
Aquest article analitza el paper de la fenomenologia en el model de la teoria crítica d'Iris Marion Young a través d'una discussió de les diferents estratègies que utilitza per articular les nocions d'identitat i col·lectivitats socials a La justicia y ...
Gustavo Lima e Silva   +1 more
doaj   +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

Chern flat manifolds that are torsion-critical [PDF]

open access: yesPacific J. Math. 334 (2025) 329-348
In our previous work, we introduced a special type of Hermitian metrics called {\em torsion-critical,} which are non-K\"ahler critical points of the $L^2$-norm of Chern torsion over the space of all Hermitian metrics with unit volume on a compact complex manifold.
arxiv   +1 more source

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