Results 41 to 50 of about 8,519,684 (295)

Magnetohydrodynamics of Population III Star Formation [PDF]

AIP Conference Proceedings, 2010
The evolution of collapsing primordial clouds and the formation of Population III (Pop III) protostars are investigated with three‐dimensional ideal MHD simulations. We follow the collapse of parsec‐sized primordial clouds down to the formation of protostars on sub‐AU scales.
Masahiro N. Machida, Kazuyuki Omukai, Tomoaki Matsumoto, Daniel J. Whalen, Volker Bromm, Naoki Yoshida   +5 more
openaire   +1 more source

LAP1-B is the First Observed System Consistent with Theoretical Predictions for Population III Stars

The Astrophysical Journal Letters
Recently, Nakajima et al. presented James Webb Space Telescope observations of the z = 6.6 Population III (Pop III) candidate LAP1-B, which is gravitationally lensed by galaxy cluster MACS J0416. We argue that this is the first object to agree with three
Eli Visbal, Ryan Hazlett, Greg L. Bryan
doaj   +1 more source

The Evolution of Population III and Extremely Metal-poor Binary Stars

The Astrophysical Journal, 2023
Numerical simulations have now shown that Population III (Pop III) stars can form in binaries and small clusters and that these stars can be in close proximity to each other.
Sung-Han Tsai, Ke-Jung Chen, Daniel Whalen, Po-Sheng Ou, Tyrone E. Woods   +4 more
doaj   +1 more source

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan, Mariah Wright‐Nadkarni, Mohamed S. Abdelbaki, Girish Dhall   +3 more
wiley   +1 more source

Type Ia Supernovae from First-generation Stars

The Astrophysical Journal
Type Ia supernovae (SNe Ia) discovered at redshift z ≲ 2.5 are presumed to be produced from Population I/II stars. In this work, we investigate the production of SNe Ia from Population III binaries in the cosmological framework.
Zhenwei Li, Lifan Wang, Zhanwen Han, Xuefei Chen   +3 more
doaj   +1 more source

Ewing Sarcoma in Infants and Children Under 2 Years of Age: A French Retrospective Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Ewing sarcoma, the second most common primary bone cancer in children, requires intensive treatment that may lead to significant long‐term sequelae, particularly in infants. We retrospectively analyzed data from 1621 French patients treated between 1988 and 2015 within the EW88/93/97 or EE99 trials, focusing on 17 infants diagnosed before 24 ...
Elodie Verdier, Nathalie Cozic, Marie‐Dominique Tabone, Gaelle Pierron, Perrine Marec‐Berard, Sarah Winter, Gabriel Revon‐Rivière, Cyril Lervat, Dominique Plantaz, Marie‐Pierre Castex, Gregory Guimard, Estelle Thebaud, Stephanie Proust, Laure Saumet, Natacha Entz‐Werle, Sophie Taque, Cécile Vérité, Marta Jimenez, Nathalie Gaspar   +18 more
wiley   +1 more source

Fast-spinning massive black holes from slowly rotating low-metallicity stars: Implications for GW231123

Astronomy & Astrophysics
Context. The origin of massive black holes in the early Universe remains uncertain and is still unexplored. Population III (Pop III; zero-metallicity) stars are among the first stellar sources capable of producing such remnants, but their evolution is ...
Ismail N. H., Yusof N., Hirschi R., Griffiths A., Aloy M. Á., Ekström S., Meynet G.   +6 more
doaj   +1 more source

Provider and Parent Perspectives on Prioritizing the “Asking and Monitoring” Pediatric Cancer Psychosocial Standards of Care

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Standards for Psychosocial Care for Children with Cancer and Their Families (“Standards”) are evidence‐based guidelines for psychosocial care in pediatric oncology. Care related to the three “Asking and Monitoring” Standards—Assessment of Psychosocial Needs, Assessment of Financial Needs, and Monitoring Neurocognitive Problems ...
Julia B. Tager, Natalie Koskela‐Staples, Emily M. Pariseau, Michele Scialla, Kimberly Buff, Lori Wiener, Victoria Sardi Brown, Anne E. Kazak, Kimberly S. Canter   +8 more
wiley   +1 more source

The Cosmic Near Infrared Background: Remnant Light From Early Stars [PDF]

, 2008
The redshifted ultraviolet light from early stars at z similar to 10 contributes to the cosmic near infrared background (NIRB). We present detailed calculations of its spectrum with various assumptions about metallicity and mass spectrum of the early ...
Eiichiro Komatsu, Komatsu, E., Fernandez, E. R., Elizabeth R. Fernandez   +3 more
core   +1 more source

Safety and Effectiveness of a High‐Dose, Tailored Tissue Plasminogen Activator Therapy Protocol: A Joint Pediatric Hematology and Cardiac ICU Quality Improvement Initiative Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric thromboembolism is increasingly encountered in critical care. Systemic thrombolysis with tissue plasminogen activator (tPA) facilitates vessel or valve patency, yet pediatric‐specific protocols remain undefined, and safety concerns persist. Objective To evaluate the efficacy and safety of a tailored, prolonged systemic tPA
Eran Shostak, Oded Gilad, Yael Feinstein, Sigal Nakav, Ofer Schiller, Joanne Yacobovich   +5 more
wiley   +1 more source