Results 21 to 30 of about 3,484,802 (301)

Large-angle scattering and quasi-elastic barrier distributions [PDF]

open access: yes, 2004
We study in detail the barrier distributions extracted from large-angle quasi-elastic scattering of heavy ions at energies near the Coulomb barrier. Using a closed-form expression for scattering from a single barrier, we compare the quasi-elastic barrier
D. M. Brink   +4 more
core   +5 more sources

Enquête de l’IEA sur le niveau en lecture - II

open access: yesRevue Internationale d’Éducation de Sèvres, 1994
Dans cet article, l’auteur présente et analyse l’enquête sur la lecture réalisée par l’IEA en 1991, en commentant plus particulièrement les résultats concernant la France et l’influence des stratégies des maîtres en CM1.
Émilie Barrier
doaj   +1 more source

RETRACTED ARTICLE: Secretome of endothelial progenitor cells from stroke patients promotes endothelial barrier tightness and protects against hypoxia-induced vascular leakage

open access: yesStem Cell Research & Therapy, 2021
Background Cell-based therapeutic strategies have been proposed as an alternative for brain repair after stroke, but their clinical application has been hampered by potential adverse effects in the long term.
Rodrigo Azevedo Loiola   +14 more
doaj   +1 more source

Controlling Polymer Capture and Translocation by Electrostatic Polymer-Pore Interactions [PDF]

open access: yes, 2017
Polymer translocation experiments typically involve anionic polyelectrolytes such as DNA molecules driven through negatively charged nanopores. Quantitative modelling of polymer capture to the nanopore followed by translocation therefore necessitates the
Abramowitz M.   +4 more
core   +2 more sources

Spatiotemporal resolution of spinal meningeal and parenchymal inflammation during experimental autoimmune encephalomyelitis

open access: yesNeurobiology of Disease, 2017
Experimental autoimmune encephalomyelitis (EAE) induced by active immunization of C57BL/6 mice with peptide from myelin oligodendrocyte protein (MOG35–55), is a neuroinflammatory, demyelinating disease widely recognized as an animal model of multiple ...
Bandana Shrestha   +5 more
doaj   +1 more source

Composite fermions traversing a potential barrier

open access: yes, 1995
Using a composite fermion picture, we study the lateral transport between two two-dimensional electron gases, at filling factor 1/2, separated by a potential barrier.
A. Matulis   +16 more
core   +1 more source

Conceptual barriers to understanding physical barriers [PDF]

open access: yesSeminars in Cell & Developmental Biology, 2015
The members of the large family of claudin proteins regulate ion and water flux across the tight junction. Many claudins, e.g. claudins 2 and 15, accomplish this by forming size- and charge-selective paracellular channels. Claudins also appear to be essential for genesis of tight junction strands and recruitment of other proteins to these sites.
Amulya, Lingaraju   +4 more
openaire   +2 more sources

Butyrate administration is not sufficient to improve immune reconstitution in antiretroviral-treated SIV-infected macaques

open access: yesScientific Reports, 2022
Defective gastrointestinal barrier function and, in turn, microbial translocation have been identified as significant contributors to persistent inflammation in antiretroviral (ARV)-treated people living with HIV. Metabolic supplementation of short-chain
Alexandra M. Ortiz   +10 more
doaj   +1 more source

Cholesterol sulfate fluidizes the sterol fraction of the stratum corneum lipid phase and increases its permeability

open access: yesJournal of Lipid Research, 2022
Desulfation of cholesterol sulfate (CholS) to cholesterol (Chol) is an important event in epidermal homeostasis and necessary for stratum corneum (SC) barrier function.
Ferdinand Fandrei   +8 more
doaj   +1 more source

Probing the Role of the Barrier Layer in Magnetic Tunnel Junction Transport

open access: yes, 2007
Magnetic tunnel junctions with a ferrimagnetic barrier layer have been studied to understand the role of the barrier layer in the tunneling process - a factor that has been largely overlooked until recently.
B. B. Nelson-Cheeseman   +6 more
core   +2 more sources

Home - About - Disclaimer - Privacy