Results 91 to 100 of about 8,079,770 (310)

Line profile variations in   Doradus [PDF]

Monthly Notices of the Royal Astronomical Society, 1996
We present data from high-dispersion echelle spectra and simultaneous uvby photometry for γ Doradus. These data were obtained from several sites during 1994 November as part of the MUSICOS-94 campaign. The star has two closely-spaced periods of about 0.75 d and is the brightest member of a new class of variable early F-type stars.
L. A. Balona, T. Bohm, B. H. Foing, K. K. Ghosh, E. Janot-Pacheco, K. Krisciunas, A.- M. Lagrange, W. A. Lawson, S. D. James, J. Baudrand, C. Catala, M. Dreux, P. Felenbok, J. B. Hearnshaw   +13 more
openaire   +1 more source

Investigations of the MnI 539.47 nm and MnI 542.04 nm lines in solar plages [PDF]

Serbian Astronomical Journal, 2005
We observed the MnI 539.47 nm and 542.04nm line profiles in the quiet photosphere and plage regions in 1998 and 2001, and measured the full widths at half maximum, equivalent widths and depths of these profiles.
Vince Ištvan I., Gopasyuk O., Gopasyuk S., Vince Oliver I.   +3 more
doaj   +1 more source

A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho, Karim M. Soliman, Wisit Cheungpasitporn, Wannasit Wathanavasin, Ahmed Daoud, Ahmed I. Kamal, Balázs Szamosfalvi, Tibor Fülöp   +7 more
wiley   +1 more source

Stark Broadening of O I Spectral Lines

Galaxies
We do not know a priori chemical composition of a star. However, with more high resolution spectra becoming more abundant thanks to the development of space-born observations, atomic data including Stark broadening parameters for various spectral lines ...
Milan S. Dimitrijević, Sylvie Sahal-Bréchot   +1 more
doaj   +1 more source

A mass-loss rate determination for ζ Puppis from the quantitative analysis of X-ray emission-line profiles [PDF]

, 2010
We fit every emission line in the high-resolution Chandra grating spectrum of ζ Pup with an empirical line profile model that accounts for the effects of Doppler broadening and attenuation by the bulk wind. For each of 16 lines or line complexes that can
D. Cohen, M. Leutenegger, E. Wollman, Janos Zsarg'o, D. Hillier, R. Townsend, Stanley P. Owocki Swarthmore College, NASA-GSFC, Caltech, U. Pittsburgh, Ipn, M'exico City, U. Delaware, U. Wisconsin   +13 more
semanticscholar   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Data on Stark Broadening of N V Spectral Lines

Data
A data set on Stark broadening parameters defining the Lorentzian line profile (spectral line widths and shifts) for 31 multiplets of four-times-charged nitrogen ion (N V), with lines broadened by impacts with electrons (e), protons (p), He II ions, α ...
Milan S. Dimitrijević, Magdalena D. Christova, Sylvie Sahal-Bréchot   +2 more
doaj   +1 more source

VARIABILITY OF THE Hβ LINE PROFILES AS AN INDICATOR OF ORBITING BRIGHT SPOTS IN ACCRETION DISKS OF QUASARS: A CASE STUDY OF 3C 390.3 [PDF]

, 2010
Here we show that in the case when double-peaked emission lines originate from outer parts of the accretion disk, their variability could be caused by perturbations in the disk emissivity.
P. Jovanovi'c, L. Popović, M. Stalevski, M. Stalevski, A. Shapovalova   +4 more
semanticscholar   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

SPATIAL AND TEMPORAL VARIATIONS OF K Ca II LINE PROFILE SHAPES IN DIFFERENT STRUCTURES OF THE SOLAR CHROMOSPHERE. II. DETERMINATION TECHNIQUE AND CORRELATION RELATIONSHIPS BETWEEN THE K CA II LINE PARAMETERS FOR K₁ AND K₂ FEATURES

Solar-Terrestrial Physics, 2020
We have studied two regions located at the base of a coronal hole. For the K₁ intensity minima and K₂ peaks, which form between the upper photosphere and the lower chromosphere and in the lower chromosphere respectively, a number of Ca II line parameters
I.P. Turova, S.A. Grigoryeva, O.A. Ozhogina   +2 more
doaj   +1 more source