Results 51 to 60 of about 373,456 (271)

Revisiting The First Galaxies: The epoch of Population III stars

, 2013
We investigate the transition from primordial Population III (Pop III) star formation to normal Pop II star formation in the first galaxies using new cosmological hydrodynamic simulations.
Gnedin, Nickolay Y., Gnedin, Oleg Y., Muratov, Alexander L., Zemp, Marcel   +3 more
core   +1 more source

The MedSupport Multilevel Intervention to Enhance Support for Pediatric Medication Adherence: Development and Feasibility Testing

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction We developed MedSupport, a multilevel medication adherence intervention designed to address root barriers to medication adherence. This study sought to explore the feasibility and acceptability of the MedSupport intervention strategies to support a future full‐scale randomized controlled trial.
Elizabeth G. Bouchard, Hital Patel, Paula C. Vincent, Justine Kahn, Kira Bona, Thai Hoa Tran, Elisa M. Rodriguez, Kristopher Attwood, Kara M. Kelly   +8 more
wiley   +1 more source

The transition from population III to population II-I star formation [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
We present results from the first cosmological simulations which study the onset of primordial, metal-free (population III), cosmic star formation and the transition to the present-day, metal-rich star formation (population II-I), including molecular (H$_2$, HD, etc.) evolution, tracing the injection of metals by supernov into the surrounding ...
Umberto Maio, Benedetta Ciardi, Klaus Dolag, Luca Tornatore, Sadegh Khochfar   +4 more
openaire   +4 more sources

Constraints on the Massive Supernova Progenitors

, 2007
Generally accepted scheme distinguishes two main classes of supernovae (SNe): Ia resulting from the old stellar population (deflagration of a white dwarf in close binary systems), and SNe of type II and Ib/c whose ancestors are young massive stars (died ...
Barbon R., BOJAN ARBUTINA, Cappellaro E., Cappellaro E., de Vaucouleurs G., Tully R. B.   +5 more
core   +1 more source

Stereotactic Body Radiation Therapy for Pediatric, Adolescent, and Young Adult Patients With Osteosarcoma: Local Control Outcomes With Dosimetric Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Osteosarcoma is a radioresistant tumor that may benefit from stereotactic body radiation therapy (SBRT) for locoregional control in metastatic/recurrent disease. We report institutional practice patterns, outcomes, toxicity, and failures in osteosarcoma patients treated with SBRT.
Jenna Kocsis, Shauna R. Campbell, Jonathan Jang, Eashwar Somasundaram, Chandana A. Reddy, Jacob G. Scott, Lilyana Angelov, Peter M. Anderson, Matteo Trucco, Zachary Burke, Lukas Nystrom, Nathan Mesko, Anthony Magnelli, Erin S. Murphy   +13 more
wiley   +1 more source

Runaway stars as progenitors of supernovae and gamma-ray bursts

, 2011
When a core collapse supernova occurs in a binary system, the surviving star as well as the compact remnant emerging from the SN, may reach a substantial space velocity.
Anderson, Belczynski, Blaauw, Brandt, Cameron, Cantiello, Christopher A. Tout, de Donder, de Jager, de Wit, Dewi, Dray, Drout, Dzib, Eggleton, Eldridge, Eldridge, Eldridge, Eldridge, Eldridge, Fragos, Fruchter, Garmany, Georgy, Gies, Gvaramadze, Hammer, Heber, Heger, Hobbs, Hoogerwerf, Hurley, Hurley, James, John J. Eldridge, Kalogera, Kaspi, Kelly, Kiminki, Kobulnicky, Kudritzki, Larsson, Levan, Maeder, Martin, Maz-Apellniz, Meynet, Mirabel, Mirabel, Moffat, Nelemans, Norbert Langer, Nugis, O’Shaughnessy, Paschalidis, Petrovic, Pflamm-Altenburg, Pinsonneault, Podsiadlowski, Pols, Pols, Portegies Zwart, Raskin, Richardson, Salvaterra, Schmidt-Kaler, Smartt, Stone, Tauris, Tauris, Tout, Ueta, van der Hucht, van der Sluys, van Kerkwijk, van Rensbergen, Vanbeveren, Vanbeveren, Vink, Voss, Wellstein, Woosley, Yoon, Yoon, Yoon, Zinnecker   +85 more
core   +1 more source

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed, Raquel Revuelta Iniesta, Mary Fewtrell, Julie Lanigan, Breeana Gardiner, Graeme O'Connor   +5 more
wiley   +1 more source

A JWST Project on 47 Tucanae. Overview, Photometry, and Early Spectroscopic Results of M Dwarfs and Observations of Brown Dwarfs

The Astrophysical Journal
James Webb Space Telescope (JWST) observations have been demonstrated to be efficient in detecting multiple stellar populations in globular clusters (GCs) in the low-mass regime of M dwarfs.
A. F. Marino, A. P. Milone, M. V. Legnardi, A. Renzini, E. Dondoglio, Y. Cavecchi, G. Cordoni, A. Dotter, E. P. Lagioia, T. Ziliotto, M. Bernizzoni, E. Bortolan, M. G. Carlos, S. Jang, A. Mohandasan, F. Muratore, M. Tailo   +16 more
doaj   +1 more source

Advanced Phases of Evolution of Population II Stars [PDF]

Progress of Theoretical Physics, 1965
As the extension of our previous work, calculations have been made of the evolution of a population II star after the formation of a carbon core. We start from a stage when the star has an inactive hydrogen shell-source, a helium-burning shell-source and a partially­ degenerate isothermal carbon core.
Chushiro Hayashi, Reiun H\=oshi, Daiichiro Sugimoto   +2 more
openaire   +1 more source

They might be giants: luminosity class, planet frequency, and planet-metallicity relation of the coolest Kepler target stars [PDF]

, 2012
We estimate the stellar parameters of late K and early M type Kepler target stars. We obtain medium resolution visible spectra of 382 stars with Kp-J>2 (~K5 and later spectral type).
Gaidos, Eric, Hilton, Eric, Lépine, Sébastien, Mann, Andrew W.   +3 more
core   +1 more source