Results 51 to 60 of about 1,057,490 (313)

Magnetic “Coulomb” Barrier

open access: yes, 2023
The Coulomb barrier is a classic introductory physics concept and one that is key to understanding nuclear fusion. Yet the idea that fusing atoms could exhibit both far-range repulsion and short-range attraction can result in significant cognitive ...
Raymond, Walsh
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

A potential barrier arises naturally between alternating - 1/3 and + 2/3 charge sequences: Implications for nuclear fusion

open access: yes, 2023
Nuclear fusion is the source of the sun’s energy, and billions of dollars have been invested in bringing fusion power home to planet Earth. Understanding how to overcome the Coulomb potential energy barrier is the central challenge.
Ray, Walsh
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Research progress on perioperative blood-brain barrier damage and its potential mechanism

open access: yesFrontiers in Cell and Developmental Biology, 2023
The blood-brain barrier (BBB) is an important barrier separating the central nervous system from the periphery. The composition includes endothelial cells, pericytes, astrocytes, synapses and tight junction proteins.
Yong Qiu   +13 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Investigation of electrophysical, photo- and gas-sensitive properties of ZnO–SnO2 sol–gel films

open access: yesJournal of Advanced Dielectrics
Thin nanocomposite films based on tin dioxide with a low content of zinc oxide (0.5–5[Formula: see text]mol.%) were obtained by the sol–gel method. The synthesized films are 300–600[Formula: see text]nm thick and contains pore sizes of 19–29[Formula: see
Irina A. Gulyaeva   +6 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Theoretical Study of Heterogeneous Electronic Transition Rate at the Metal/ Ionic Liquid Interface Using Quantum Theory

open access: yesJournal of Kufa-Physics, 2020
The purpose of this research is study the heterogeneous electronic transition through metal/liquid interface using simple model. The kinetic of electron transfer phenomenon discussion using postulate of quantum transition theory.
B. Alshafaay   +2 more
doaj   +1 more source

The role of SiO2 in semiconducting BaTiO3-based ceramics: Extension of the Jonker model and effect on the electrical properties

open access: yesOpen Ceramics, 2021
BaTiO3-based ceramics with positive temperature coefficient of resistance (PTCR) recently gained in significance due to their application as cabin heaters in electrical vehicles. Although used as a sintering aid in BaTiO3 ceramics for decades, the effect
Jennifer M. Prohinig   +2 more
doaj   +1 more source

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