Results 101 to 110 of about 6,236,563 (298)
Full non-LTE multi-level radiative transfer
Astronomy & AstrophysicsThe so-called full non-local thermodynamic equilibrium (FNLTE) radiative transfer problem allows us to take into account not only deviations of the radiation field from the Planck function but also deviations in the densities and the velocity ...
Lagache T., Sampoorna M., Paletou F.
doaj +1 more source
Citation: 'line profile' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08504 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire +1 more source
Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry
FEBS Letters, EarlyView.EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri +5 more
wiley +1 more source
The entropy–complexity plane as a tracer of Be-star disk dynamics
Astronomy & AstrophysicsContext. Long-term Hα variability provides a direct probe of the dynamical evolution of Be-star circumstellar disks, but interpreting these changes in terms of physical disk properties remains challenging. Aims.
Granada A. +11 more
doaj +1 more source
Emerging experimental and computational methods for studying redox‐regulated structural transitions
FEBS Letters, EarlyView.Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass +2 more
wiley +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Summary Characteristics of Survey Line Profiles Regressed.
, 2016 Summary Characteristics of Survey Line Profiles Regressed.
A. Peter Klimley (2512297) +2 more
core +1 more source
Unravelling the complex structure of the Fe II emission region in Type 1 active galactic nuclei
Astronomy & AstrophysicsAims. Using a large sample of Type 1 active galactic nucleus spectra, we investigated the complex structure of the Fe II emission region with the aim of understanding the atomic processes responsible for the enhancement of the Fe II emission. We explored
Kovačević-Dojčinović Jelena +2 more
doaj +1 more source
Contribution of the Electron Scattering Process to the Broad Hα Wings
Open Astronomy, 2012 We modeled the extended wings of the OVI 1032, 1038 Å resonance lines and He II 1640 Å emission line in the spectra of Z And, AG Dra and V1016 Cyg by the electron scattering process.
Sekeráš M., Skopal A.
doaj +1 more source
Stark broadening of N II spectral lines [PDF]
Serbian Astronomical JournalThe Stark broadening parameters, widths, and shifts, for spectral lines within the 45 N II multiplets, were calculated for collisions with electrons, protons and helium ions, by using the semiclassical perturbation method. The obtained data were
Dimitrijević Milan S. +2 more
doaj +1 more source