Results 51 to 60 of about 209,205 (323)

Seasonal enrichment of heavy isotopes in meltwater runoff from Haig Glacier, Canadian Rocky Mountains

open access: yesFrontiers in Earth Science, 2023
Glacier melt provides an important source of freshwater, particularly during dry years and late in the summer, after most of the seasonal snow has melted.
Kristina Penn   +3 more
doaj   +1 more source

Experimental study of fusion neutron and proton yields produced by petawatt-laser-irradiated D2-3He or CD4-3He clustering gases [PDF]

open access: yes, 2013
We report on experiments in which the Texas Petawatt laser irradiated a mixture of deuterium or deuterated methane clusters and helium-3 gas, generating three types of nuclear fusion reactions: D(d, 3He)n, D(d, t)p and 3He(d, p)4He.
Andreoli, P.   +17 more
core   +3 more sources

Functional Hydrogel for Modulating Lipid Droplets and Neuroinflammation in Head Injury

open access: yesAdvanced Functional Materials, EarlyView.
After TBI, elevated cholesterol levels in activated microglia lead to the accumulation of cholesterol esters in lipid droplets, exacerbating neuroinflammation. A β‐cyclodextrin‐conjugated GelMA (βCD‐GelMA) hydrogel is developed to promotes cholesterol efflux and reduces LDL influx, thereby alleviating intracellular cholesterol and lipid droplet buildup.
Feixiang Chen   +9 more
wiley   +1 more source

Glucose versus fructose metabolism in the liver measured with deuterium metabolic imaging

open access: yesFrontiers in Physiology, 2023
Chronic intake of high amounts of fructose has been linked to the development of metabolic disorders, which has been attributed to the almost complete clearance of fructose by the liver.
Arjan D. Hendriks   +5 more
doaj   +1 more source

Exploiting the Functionality of Cerium Oxide‐Modified Carbon Nanohorns Catalysts Toward Enhanced CO2 Reduction Performance

open access: yesAdvanced Functional Materials, EarlyView.
A cerium oxide‐carbon nanohybrid catalyst is synthesized via two distinct routes and is integrated into H‐type cells and gas diffusion layers (GDLs) to enhance electrochemical performance. Structural variations significantly affect performance, with the solvothermal sample exhibiting higher current densities.
Alessia Pollice   +9 more
wiley   +1 more source

Validation of deuterium incorporation against sterol balance for measurement of human cholesterol biosynthesis

open access: yesJournal of Lipid Research, 1998
To examine the validity of the deuterium (D) incorporation technique for measurement of human cholesterol synthesis rates, D uptake from D2O into cholesterol was compared to sterol balance in 13 subjects each under three controlled diet settings ...
P.J.H. Jones   +5 more
doaj  

Deuterium-burning in substellar objects [PDF]

open access: yes, 2000
We consider the depletion of primordial deuterium in the interior of substellar objects as a function of mass, age and absolute magnitude in several photometric passbands.
Baraffe I.   +9 more
core   +4 more sources

Bright Monocompound Metal Halide Scintillator for Fast Neutron Radiography

open access: yesAdvanced Functional Materials, EarlyView.
Metal halide scintillator, tetraphenylphosphonium manganese bromide (TPP2MnBr4), provides a significant benefit for fast neutron imaging. A fourfold increase in efficiency over traditional zinc sulfide screens is achieved by efficiently utilizing neutron interactions within its homogeneous structure.
Aditya Bhardwaj   +13 more
wiley   +1 more source

HYDROGEN ISOTOPE RETENTION AND LATTICE DAMAGE IN THE CONSTRUCTIVE MATERIALS IRRADIATED WITH H+/D+ IONS

open access: yesEast European Journal of Physics, 2016
The paper is the result of investigations the authors of initial stages of hydrogen isotope retention and migration, formation of radiation damages of lattice in the constructive materials irradiated wich H+/D+ ions.
V. V. Bobkov   +3 more
doaj  

Depth concentrations of deuterium ions implanted into some pure metals and alloys

open access: yes, 2011
Pure metals (Cu, Ti, Zr, V, Pd) and diluted Pd-alloys (Pd-Ag, Pd-Pt, Pd-Ru, Pd-Rh) were implanted by 25 keV deuterium ions at fluences in the range (1.2{\div}2.3)x1022 D+/m2.
A. A. Chernyshov   +29 more
core   +1 more source

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