Results 51 to 60 of about 1,135,801 (376)

Hole dynamics in a photovoltaic donor-acceptor couple revealed by simulated time-resolved X-ray absorption spectroscopy

open access: yesStructural Dynamics, 2019
Theoretical and experimental methodologies that can characterize electronic and nuclear dynamics, and the coupling between the two, are needed to understand photoinduced charge transfer in molecular building blocks used in organic photovoltaics.
Khadijeh Khalili   +5 more
doaj   +1 more source

High-throughput computational X-ray absorption spectroscopy

open access: yesScientific Data, 2018
X-ray absorption spectroscopy (XAS) is a widely-used materials characterization technique. In this work we present a database of computed XAS spectra, using the Green's formulation of the multiple scattering theory implemented in the FEFF code. With more
K. Mathew   +7 more
semanticscholar   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

open access: yesMolecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis   +3 more
wiley   +1 more source

Structural, Optical and Photocatalytic Properties of Cerium Oxide Nanoparticles [PDF]

open access: yesNanochemistry Research
Sphere-like cerium dioxide nanoparticles were synthesized by a hydrothermal method. The resulting samples were investigated using various techniques, including X-ray powder diffraction spectroscopy (XRD), high-resolution scanning electron microscopy ...
Anbuvannan Mari   +4 more
doaj   +1 more source

A beamline for bulk sample x-ray absorption spectroscopy at the high brilliance storage ring PETRA III

open access: yes, 2019
P65 is a new X-ray Absorption Fine Structure (XAFS) spectroscopy beamline at the high brilliance storage ring PETRA III in Hamburg, Germany. It is providing a mm sized beam and a monochromatic photon flux of up to 1012 s−1 at 9 keV.
E. Welter   +3 more
semanticscholar   +1 more source

Efficient table-top dual-wavelength beamline for ultrafast transient absorption spectroscopy in the soft X-ray region. [PDF]

open access: yes, 2019
We present a table-top beamline providing a soft X-ray supercontinuum extending up to 370 eV from high-order harmonic generation with sub-13 fs 1300 nm driving pulses and simultaneous production of sub-5 fs pulses centered at 800 nm. Optimization of high
Barreau, Lou   +5 more
core   +4 more sources

Probing warm dense matter using femtosecond X-ray absorption spectroscopy with a laser-produced betatron source

open access: yesNature Communications, 2018
Exploring and understanding ultrafast processes at the atomic level is a scientific challenge. Femtosecond X-ray absorption spectroscopy (XAS) arises as an essential experimental probing method, as it can simultaneously reveal both electronic and atomic ...
B. Mahieu   +7 more
semanticscholar   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Modern x-ray spectral methods in the study of the electronic structure of actinide compounds: Uranium oxide UO2 as an example [PDF]

open access: yesNuclear Technology and Radiation Protection, 2004
Fine X-ray photo electron spectral (XPS) structure of uranium dioxide UO2 in the binding energy (BE) range 0-~č40 eV was associated mostly with the electrons of the outer (OVMO) (0-15 eV BE) and inner (IVMO) (15-40 eV BE) valence molecular orbitals ...
Teterin Yury A., Teterin Anton Yu.
doaj   +1 more source

X-Ray absorption spectroscopy on airborne aerosols

open access: yesEnvironmental Science: Atmospheres, 2022
It is demonstrated that X-ray absorption spectroscopy can be used to analyze the chemical state of airborne aerosols in situ under controlled conditions.
Muhammad H. Rashid   +3 more
openaire   +2 more sources

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