Results 31 to 40 of about 3,473,869 (204)

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

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

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

Impacts of foodborne inorganic nanoparticles on the gut microbiota-immune axis: potential consequences for host health

open access: yesParticle and Fibre Toxicology, 2020
Background In food toxicology, there is growing interest in studying the impacts of foodborne nanoparticles (NPs, originating from food additives, food supplements or food packaging) on the intestinal microbiome due to the important and complex ...
Bruno Lamas   +2 more
doaj   +1 more source

Psychological barriers [PDF]

open access: yesEuropean Journal of Endocrinology, 2004
Type 2 diabetes treatment outcomes ultimately depend on patients and their ability to make long-term behavioural changes that support good self-care and metabolic control. Patients' perceptions about diabetes and diabetes-related complications can have a strong influence on their emotional well-being, as well as day-to-day self-care and the quality of ...
openaire   +2 more sources

Metastable Evolutionary Dynamics: Crossing Fitness Barriers or Escaping via Neutral Paths?

open access: yes, 1999
We analytically study the dynamics of evolving populations that exhibit metastability on the level of phenotype or fitness. In constant selective environments, such metastable behavior is caused by two qualitatively different mechanisms. One the one hand,
Crutchfield, James P.   +1 more
core   +1 more source

Important ecosystem function, low redundancy and high vulnerability: The trifecta argument for protecting the Great Barrier Reef's tabular Acropora

open access: yesConservation Letters, 2021
Identifying organisms that play an important role in maintaining ecosystem function is a key aspect of resilience‐based management. For Australia's Great Barrier Reef (GBR), we found that the recovery ability of shallow exposed fore‐reefs is more than 14
Juan C. Ortiz   +6 more
doaj   +1 more source

Building barriers [PDF]

open access: yesTissue Barriers, 2017
Formation of tissue barriers starts in early development where it is critical for normal cell fate selection, differentiation and organogenesis. Barrier maintenance is critical to the ongoing function of organs during adulthood and aging. Dysfunctional tissue barrier formation and function at any stage of the organismal life cycle underlies many ...
openaire   +2 more sources

Failure Assessment Methodologies for Pressure-Retaining Components under Severe Accident Loading

open access: yesScience and Technology of Nuclear Installations, 2012
During postulated high-pressure core melt accident scenarios, temperature values of more than 800°C can be reached in the reactor coolant line and the surge line of a pressurised water reactor (PWR), before the bottom of the reactor pressure vessel ...
J. Arndt, H. Grebner, J. Sievers
doaj   +1 more source

Home - About - Disclaimer - Privacy