Results 91 to 100 of about 30,961 (212)

Pharmacological inhibition of hydroxysteroid 11‐beta dehydrogenase type 1 (11‐βHSD1) after myocardial infarction preserves cardiac function in a translational mini‐pig model

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 10, Page 2236-2255, May 2026.
Abstract Background and Purpose Plasma glucocorticoids increase acutely after MI, thereafter tissue levels are amplified selectively within cells expressing 11‐ßhydroxysteroid dehydrogenase type 1 (11‐ßHSD1) that regenerates active glucocorticoids from circulating metabolites.
Sara Al Disi   +19 more
wiley   +1 more source

Discussing the physical meaning of the absorption feature at 2.1 keV in 4U 1538-52

open access: yes, 2014
High resolution X-ray spectroscopy is a powerful tool for studying the nature of the matter surrounding the neutron star in X-ray binaries and its interaction between the stellar wind and the compact object.
Bernabéu, G.   +4 more
core   +1 more source

Radiofrequency and 2.45 GHz electron cyclotron resonance H− volume production ion sources

open access: yesNew Journal of Physics, 2016
The volume production of negative hydrogen ions ( ${{\rm{H}}}^{-}$ ) in plasma ion sources is based on dissociative electron attachment (DEA) to rovibrationally excited hydrogen molecules (H _2 ), which is a two-step process requiring both, hot electrons
O Tarvainen, S X Peng
doaj   +1 more source

A Quality Control Assay to Access the HCl Molarity of Radionuclide Solutions

open access: yesChemosensors, 2016
Strontium-82 is produced by proton activation of a rubidium chloride target in an accelerator or cyclotron and purified by ion exchange chromatography. The Strontrium-82 is used in Cardigen generators to produce Rubidium-82 for cardiac imaging.
Jonathan Fitzsimmons
doaj   +1 more source

Wave‐Based Quantification of Ion Composition in the Earth's Magnetosphere‐Ionosphere‐Coupling Region

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Ion composition critically determines the basic kinetic characteristics of plasma and affects energy transmission of the magnetosphere. However, it exhibits significant variations with altitude, latitude, local time, longitude, and also with geomagnetic and solar activity.
Zhijie Qin   +4 more
wiley   +1 more source

Observation and interpretation of core ion cyclotron emission driven by D–D fusion-produced tritium ions in EAST

open access: yesNuclear Fusion
Recently, in a series of EAST discharges using deuterium neutral beam injection (NBI), tritium (T) ions were produced via deuterium–deuterium (D–D) fusion reactions, resulting in excited ion cyclotron emission (ICE) within the plasma core in H-mode ...
Huapeng Zhang   +16 more
doaj   +1 more source

Dissolved Black Carbon in North Cascades Snow, Meltwater and a Downstream River

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract Quantification of black carbon on snow in the Cascade Range is needed due to increasing wildfire intensity and frequency. Here, the benzenepolycarboxylic acid (BPCA) molecular method was used to measure dissolved black carbon (DBC) in snow, nearby rivers, streams, and supraglacial melt collected in 2022 and 2023 from Mount Baker and Mount ...
S. Vaux   +4 more
wiley   +1 more source

Precursor Wave Emission Enhanced by Weibel Instability in Relativistic Shocks

open access: yes, 2018
We investigated the precursor wave emission efficiency in magnetized purely perpendicular relativistic shocks in pair plasmas. We extended our previous study to include the dependence of upstream magnetic field orientations.
Amano, Takanobu   +3 more
core   +1 more source

Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak

open access: yesNuclear Fusion
In the 2023 experiment campaign, we measured ion cyclotron emission (ICE) signals on the Experimental Advanced Superconducting Tokamak (EAST), edge ICE excited by tritium ions.
Huapeng Zhang   +17 more
doaj   +1 more source

Experimental identification of ion cyclotron emission on HL-2A using YOLO neural network algorithm

open access: yesNuclear Fusion
Identification of magnetohydrodynamics (MHD) instabilities with neural networks has been extensively applied in the research of magnetically controlled fusion plasmas.
Jiahao Zhang   +5 more
doaj   +1 more source

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