Results 41 to 50 of about 3,384 (302)

Dependence of Stellar Differential Rotation on Effective Temperature and Rotation: An Analysis from Starspot Transit Mapping

open access: yesThe Astrophysical Journal, 2023
Stellar rotation is crucial for studying stellar evolution, since it provides information about age, angular momentum transfer, and magnetic fields of stars.
Alexandre Araújo, Adriana Valio
doaj   +1 more source

Spectral Synthesis Of Carmenes M-Type Stars: Stellar Atmospheric Parameters

open access: yes, 2018
{"references": ["Alvarez & Plez 1998, A&A, 330, 1109", "Blanco-Cuaresma et al. 2014, A&A, 569, A111", "Husser et al. 2013, A&A, 553, A6", "Passegger et al. 2018, A&A, 615, A6", "Quirrenbach et al. 2016, in Proc. SPIE, 9908, 990812", "Ryabchikova et al. 2015, PhysScr, 90, 5", "Tabernero et al. 2018, MNRAS, 476, 3106"]}
Marfil, Emilio   +5 more
openaire   +2 more sources

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada   +6 more
wiley   +1 more source

The nature and origin of disky elliptical galaxies [PDF]

open access: yes, 2002
The observational trend that disky elliptical galaxies exhibit younger luminosity- weighted ages than boxy ellipticals is investigated. The presence of a possible young stellar disk embedded in these galaxies is explored by comparing kinematics derived ...
McDermid, Richard Morgan
core  

Spectral energy distributions of type 2 quasi-stellar objects: obscured star formation at high redshifts [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2009
We present new mid-infrared and submillimetre observations for a sample of eight high-redshift type 2 quasi-stellar objects (QSOs) located in the Chandra Deep Field-South. The sources are X-ray absorbed with luminosities in excess of 10 44 erg s ―1 .
Rigopoulou, D.   +8 more
openaire   +3 more sources

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

open access: yesTherapeutic 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   +7 more
wiley   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS 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

Inferring Stellar Parameters from Iodine-imprinted Keck/HIRES Spectra with Machine Learning

open access: yesThe Astrophysical Journal Letters
The properties of exoplanet host stars are traditionally characterized through a detailed forward-modeling analysis of high-resolution spectra. However, many exoplanet radial velocity surveys employ iodine-cell-calibrated spectrographs, such that the ...
Jude Gussman, Malena Rice
doaj   +1 more source

Spectroscopy and spectral types for 387 stellar objects from the large, bright QSO survey

open access: yesThe Astrophysical Journal Supplement Series, 1992
Spectroscopy and spectral types for 387 stellar objects brighter than B J = 18.75 found in the Large, Bright QSO Survey (LBQS) are reported. The spectra were observed with the MMT at moderate resolution (6 A FWHM) and low S/N, and cover the interval λλ3200-7400.
Christopher Berg   +4 more
openaire   +1 more source

Variability in stellar granulation and convective blueshift with spectral type and magnetic activity [PDF]

open access: yesAstronomy & Astrophysics, 2017
12 pages, 9 figures ; accepted in Astronomy and ...
Meunier, N.   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy