Results 71 to 80 of about 3,517,480 (298)

Lasers for the observation of multiple order nuclear reactions

open access: yesFrontiers in Physics, 2022
Nuclear reaction rates become nonlinear with respect to flux (cm−2s−1) in extreme environments such as those found during stellar nucleosynthesis and terrestrial nuclear detonations.
Jeffrey Burggraf, Alex Zylstra
doaj   +1 more source

Evaluating the Utility of Paired Tumor and Germline Targeted DNA Sequencing for Pediatric Oncology Patients: A Single Institution Report

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate the diagnostic yield and utility of universal paired tumor–normal multigene panel sequencing in newly diagnosed pediatric solid and central nervous system (CNS) tumor patients and to compare the detection of germline pathogenic/likely pathogenic variants (PV/LPVs) against established clinical referral criteria for cancer ...
Natalie Waligorski   +9 more
wiley   +1 more source

Astrophysical Models of r-Process Nucleosynthesis: An Update

open access: yes, 2012
An update on astrophysical models for nucleosynthesis via rapid neutron capture, the r process, is given. A neutrino-induced r process in supernova helium shells may have operated up to metallicities of ~10^-3 times the solar value.
Qian, Yong-Zhong
core   +1 more source

The thermal runaway r-process

open access: yesThe Astrophysical Journal, 1982
We have identified and we discuss a variant of the r-process which occurs in a degenerate helium gas containing about 2% or more of /sup 13/C(..cap alpha..,n)/sup 16/O reaction serving as the energy and neutron production source. Thermal runaway leads to a slowly rising neutron flux which causes a buildup of heavier elements from lighter ones; in the ...
J. J. Cowan   +2 more
openaire   +1 more source

Outcomes of Live Virus Vaccination in Patients With Vascular Anomalies Being Treated With Sirolimus

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Live vaccination in patients with vascular anomalies (VA) receiving sirolimus remains controversial due to immunosuppressive effects and theoretical risks. Procedure This single‐center retrospective study included patients with VA less than 4 years old at the start of sirolimus therapy who were incompletely vaccinated.
Svatava Merkle   +5 more
wiley   +1 more source

R-process nucleosynthesis calculations with complete nuclear physics input

open access: yes, 2008
The r-process constitutes one of the major challenges in nuclear astrophysics. Its astrophysical site has not yet been identified but there is observational evidence suggesting that at least two possible sites should contribute to the solar system ...
Arcones, A.   +10 more
core   +1 more source

Probing r-Process Production of Nuclei Beyond Bi209 with Gamma Rays [PDF]

open access: yes, 1999
We estimate gamma-ray fluxes due to the decay of nuclei beyond Bi209 from a supernova or a supernova remnant assuming that the r-process occurs in supernovae.
Qian, Y. -Z.   +2 more
core   +3 more sources

Neutron-capture measurement candidates for the r-process in neutron star mergers

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Neutron star mergers (NSMs) are one of the astrophysical sites for the occurrence of the rapid neutron capture process (r-process). After a merger, the ejected neutron-rich matter hosts the production of radioactive heavy nuclei located far from the ...
Diego Vescovi   +4 more
doaj   +1 more source

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior   +7 more
wiley   +1 more source

Impact of nuclear mass uncertainties on the $r$-process

open access: yes, 2016
Nuclear masses play a fundamental role in understanding how the heaviest elements in the Universe are created in the $r$-process. We predict $r$-process nucleosynthesis yields using neutron capture and photodissociation rates that are based on nuclear ...
Arcones, Almudena   +3 more
core   +1 more source

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