Results 181 to 190 of about 15,829 (264)

The Source Brightness Distribution of Terrestrial Gamma‐Ray Flashes From the ALOFT Flight Campaign

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Terrestrial Gamma‐ray Flashes (TGFs) are naturally occurring phenomena that consist of bursts of gamma radiation associated with thunderclouds. Measurements of TGFs have been predominantly based on satellite instruments due to the significantly larger observation area compared to ground measurements. Due to atmospheric attenuation of the gamma
A. N. Fuglestad   +15 more
wiley   +1 more source

Low-Energy Single-Electron Detector with Submicron Resolution. [PDF]

open access: yesACS Photonics
Ixquiac Méndez LA   +3 more
europepmc   +1 more source

Turbulence‐Resilient Coherent Receiver Array on CMOS‐Compatible Silicon Photonics for Free Space Optical Communications

open access: yesNanophotonics, Volume 15, Issue 5, 16 March 2026.
A CMOS‐compatible silicon‐photonic 4 × 4 coherent receiver array spatially samples turbulence‐distorted wavefronts and, with maximum‐ratio combining, enables signal recovery. Experimental BPSK tests under moderate turbulence approach theoretical combining efficiency, reducing BER from 1E‐2 to 1E‐15.
Alireza Fardoost   +7 more
wiley   +1 more source

Surface Air Enrichment of Cosmogenic 35S at a Subtropical Site During the May 2024 Solar Superstorm

open access: yesGeophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Cosmogenic radiosulfur (35S) is produced in the atmosphere by high‐energy particle interactions and serves as a sensitive tracer of stratospheric intrusions. In May 2024, an extreme solar storm provided a rare opportunity to examine atmospheric 35S responses to intense solar activity.
Xinling Zou   +4 more
wiley   +1 more source

Modulation of Tau Protein Neurotoxic Hallmarks by Novel σ1R Agonists/HDAC Inhibitor Dual‐Acting Compounds

open access: yesChemMedChem, Volume 21, Issue 5, 13 March 2026.
This study explores the development of dual‐acting compounds combining σ1R agonists and histone deacetylase inhibitors (HDACi). Key findings include compound 2d and 3a's high affinity for σ1R and favorable pharmacokinetic profile and an in vivo determined σ1R agonist profile by reversing the effect of the σ1R antagonist BD‐1063.
Antonino N. Fallica   +16 more
wiley   +1 more source

Practical approach to last-mile converged free-space and fiber QKD for secure city-scale networks. [PDF]

open access: yesSci Rep
Stathis A   +8 more
europepmc   +1 more source

Commissioning of a near real‐time in vivo film dosimetry system

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 3, March 2026.
Abstract Background Accurate in vivo dosimetry is crucial for dose monitoring of cardiac implantable electronic devices (CIED) and for dose verification for special procedures such as total body irradiation (TBI) and total skin electron therapy (TSET). Purpose A new near real‐time in vivo dosimetry system using radiochromic films (RCF) is investigated ...
Yunjie Yang   +8 more
wiley   +1 more source

Development of a radio thin-layer chromatography scanner: Design and qualification. [PDF]

open access: yesEJNMMI Radiopharm Chem
Chivato Martín-Falquina T   +3 more
europepmc   +1 more source

Clinical commissioning of a novel compact multi‐room pencil beam scanning proton therapy system

open access: yesJournal of Applied Clinical Medical Physics, Volume 27, Issue 3, March 2026.
Abstract Purpose To present the clinical commissioning of the world's first multi‐room Varian ProBeam 360° proton pencil beam scanning system. Methods The state‐of‐the‐art system includes two clinical treatment rooms with 360° rotating gantries, a superconducting cyclotron, an energy selection system, a beam transport system and scanning nozzles. These
Eunsin Lee   +4 more
wiley   +1 more source

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