Results 51 to 60 of about 14,115,145 (304)
Pediatric Blood &Cancer, EarlyView.ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani +7 more
wiley +1 more source
, 2012 The first stars to form in the Universe -- the so-called Population III stars -- bring an end to the cosmological Dark Ages, and exert an important influence on the formation of subsequent generations of stars and on the assembly of the first galaxies.
openaire +2 more sources
Monthly Notices of the Royal Astronomical Society, 1983 Primordial clouds are likely to be remarkably uniform over stellar mass-scales in the absence of a pre-existing generation of stars. Thermal instability is found to occur during the collapse of a primordial cloud when the H2 abundance is rising and the H2 optical depth is of order unity.
openaire +1 more source
From the first stars to the first black holes [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We investigate the nature and origin of the first super-massive black holes at redshift larger than 5 by means of an improved version of the semi analytical model GAMETE/QSOdust. In this study, we model the formation of the progenitors (seeds) of the first super-massive black holes along host galaxies hierarchical assembly.
Valiante, Rosa +3 more
openaire +3 more sources
Mass distribution of population III star clusters: A-SLOTH predictions for JWST observability
Astronomy & AstrophysicsContext. Detecting population III (pop. III) stars remains a major observational challenge. Their Balmer-series recombination line emission, redshifted into the infrared at z ∼ 5 − 11, has been proposed as a potential tracer.
Lipatova Veronika +3 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Allogeneic hematopoietic stem cell transplantation (alloHSCT) is an essential therapy for several malignant and nonmalignant diseases, but relapse and graft loss remain the principal threats to its success. Routine monitoring of chimerism and minimal residual disease (MRD) enables early detection of imminent recurrence and guides ...
Carmen Junk +10 more
wiley +1 more source
DARK STARS: A NEW LOOK AT THE FIRST STARS IN THE UNIVERSE [PDF]
The Astrophysical Journal, 2009 14 pages, 4 figures, 1 Table, Submitted to ...
Spolyar, Douglas +3 more
openaire +2 more sources
Signatures of very massive stars in the epoch of reionization
Astronomy & AstrophysicsWe present ultra-deep (≃20 − 30 hours) rest-frame UV spectroscopy with NIRSpec of two UV-bright galaxies at z ∼ 8.7, CEERS-1019 and CEERS-1025 (Zneb ≃ 0.1 Z⊙), obtained as part of the JWST Cycle 4 SPURS large program.
Marques-Chaves R. +4 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann +8 more
wiley +1 more source
Fragmentation in the First Galaxies [PDF]
, 2010 Using a one-zone model, we study the gravitational fragmentation of baryonic cold streams flowing into a typical first galaxy at high redshift to predict the expected fragmentation mass scale and thus a characteristic mass of the first population of ...
Safranek-Shrader, C. +4 more
core +1 more source