Results 91 to 100 of about 4,888,241 (302)

Barium stars and the s-process

open access: yesThe Astrophysical Journal, 1980
Theoretical s-process calculations are presented. Isotopic abundances are summed, so that atomic number Z becomes the independent variable. This form of representation of the calculations has distinct advantages in the interpretation of stellar data, since one generally does not have isotopic information.
C. R. Cowley, P. L. Downs
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

A comparative study of two 47 Tuc giant stars with different s-process enrichment

open access: yes, 2015
Here we aim to understand the origin of 47 Tuc's La-rich star Lee 4710. We report abundances for O, Na, Mg, Al, Si, Ca, Sc, Ti, V, Cr, Co, Ni, Zn, Y, Zr, Ba, La, Ce, Pr, Nd, and Eu, and present a detailed abundance analysis of two 47 Tuc stars with ...
Cordero, M. J.   +3 more
core   +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

Hydrothermal carbonization as a preliminary step to pine cone pyrolysis for bioenergy production

open access: yesComptes Rendus. Chimie, 2020
The main objective of this work was to elucidate the benefits associated with including hydrothermal carbonization (HTC) as the previous step to traditional fast pyrolysis of Tunisian pine cone (PC).
Boutaieb, Mouzaina   +5 more
doaj   +1 more source

S-process studies - The exact solution

open access: yesThe Astrophysical Journal, 1978
The exact solution to the unbranched s-process network is computed for the range of neutron exposures of astrophysical interest, and the exact solution for the case of an arbitrary degree of degeneracy of the cross-section values is obtained. The validity of the Clayton, Fowler, Hull, and Zimmerman approximate solution is determined by direct ...
openaire   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel   +3 more
wiley   +1 more source

Dependence of S-Process Nucleosynthesis in Massive Stars on Triple-Alpha and 12C(a,g)16O Reaction Rate Uncertainties

open access: yes, 2009
We have studied the sensitivity of s-process nucleosynthesis in massive stars to +/- 2 sigma variations in the rates of the triple alpha and 12C(a,g)16O reactions.
Alexander Heger   +18 more
core   +1 more source

Stellar Mixing and s-PROCESS Nucleosynthesis

open access: yesThe Astrophysical Journal, 1977
A model for the operation of the s-process is studied in which neutron capture occurs only in a thin layer at the bottom of a deep convective envelope. Simultaneous convective mixing and neutron capture are described by means of diffusion equations. We find that this model admits abundance distributions which resemble the solar system distribution, but
Richard L. Smith, Anthony Gonsiorowski
openaire   +1 more source

A High‐Sensitivity Circulating Nucleic Acid Sequencing Assay for Assessing Treatment Response to Alectinib in a Pediatric Patient With ALK‐Rearranged Non–Small Cell Lung Cancer

open access: yes
Pediatric Blood &Cancer, EarlyView.
Alberto D. Guerra   +9 more
wiley   +1 more source

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