Results 51 to 60 of about 143,610 (241)
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background B‐cell lymphoblastic lymphoma (B‐LBL) represents a rare variety of non‐Hodgkin lymphoma, with limited research on its biology, progression, and management. Methods A retrospective analysis was performed on the clinical characteristics of 256 patients aged ≤18 years who received treatment under the China Net Childhood Lymphoma (CNCL)‐
Zhijuan Liu +20 more
wiley +1 more source
The Astrophysical JournalJWST observations have unveiled faint active galactic nuclei (AGNs) at high redshift that provide insights into the formation of supermassive black holes (SMBHs). However, disentangling their stellar from AGN light is challenging.
Jorryt Matthee +16 more
doaj +1 more source
In the Trenches of the Solar–Stellar Connection. VII. Wilson–Bappu 2022
The Astrophysical Journal Supplement Series, 2023 The Wilson–Bappu effect (WBE) is a remarkable correlation between the width of the chromospheric emission core of the Ca ii 3934 Å K line and stellar absolute visual magnitude over an astonishing range, from diminutive red dwarfs to bloated yellow ...
Thomas Ayres
doaj +1 more source
The Massive End of the Stellar Mass Function
, 2015 We derive average flux corrections to the \texttt{Model} magnitudes of the Sloan Digital Sky Survey (SDSS) galaxies by stacking together mosaics of similar galaxies in bins of stellar mass and concentration.
D'Souza, R., Kauffmann, G., Vegetti, S.
core +1 more source
Dust grain growth in the interstellar medium of 5
, 2010 We investigate whether stellar dust sources i.e. asymptotic giant branch (AGB) stars and supernovae (SNe) can account for dust detected in 55 QSOs. SNe (but not AGB stars) may deliver enough heavy elements to fuel this growth.Comment: A&A, accepted.
Alton +87 more
core +2 more sources
Stellar Remnants in Galactic Nuclei: Mass Segregation [PDF]
The Astrophysical Journal, 2006 The study of how stars distribute themselves around a massive black hole (MBH) in the center of a galaxy is an important prerequisite for the understanding of many galactic-center processes. These include the observed overabundance of point X-ray sources at the Galactic center, the prediction of rates and characteristics of tidal disruptions of ...
Freitag, M. +2 more
openaire +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Bone tumours present significant challenges for affected patients, as multimodal therapy often leads to prolonged physical limitations. This is particularly critical during childhood and adolescence, as it can negatively impact physiological development and psychosocial resilience.
Jennifer Queisser +5 more
wiley +1 more source
Rapid mass segregation in small stellar clusters [PDF]
Astrophysics and Space Science, 2017 In this paper we focus our attention on small-to-intermediate N-body systems that are, initially, distributed uniformly in space and dynamically cool (virial ratios $Q=2T/| |$ below ~0.3). In this work, we study the mass segregation that emerges after the initial violent dynamical evolution.
Mario Spera, Roberto Capuzzo-Dolcetta
openaire +2 more sources
The Astrophysical Journal, 2023 Abstract In this empirical work, we aim to quantify the systematic uncertainties in stellar-mass (M ⋆) estimates made from spectral energy distribution (SED) fitting through stellar population synthesis (SPS) for galaxies in the local Universe by using the dynamical mass (M dyn) estimator as an SED ...
M. Burak Dogruel +6 more
openaire +4 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou +10 more
wiley +1 more source