Results 121 to 130 of about 174,695 (330)

Structure of the SMC - Stellar component distribution from 2MASS data

, 2008
The spatial distribution of the SMC stellar component is investigated from 2MASS data. The morphology of the different age populations is presented. The center of the distribution is calculated and compared with previous estimations.
A. Karampelas, Begum, Cioni, Cote, E. Kontizas, E. Livanou, Freeman, Gardiner, Haynes, I. Gonidakis, M. Belcheva, M. Kontizas, Maragoudaki, Morgan, P. Tsalmantza, Stanimirovic, Strigari, U. Klein   +17 more
core   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

Stellar population in star formation regions of galaxies

Open Astronomy, 2018
We developed techniques for searching young unresolved star groupings (clusters, associations, and their complexes) and of estimating their physical parameters.
Gusev Alexander S., Shimanovskaya Elena V., Shatsky Nikolai I., Sakhibov Firouz, Piskunov Anatoly E., Kharchenko Nina V.   +5 more
doaj   +1 more source

Observational Properties of Primordial Stellar Populations [PDF]

, 2002
N. Panagia, M. Stiavelli, Henry C. Ferguson, H. S. Stockman   +3 more
openalex   +1 more source

Tumor and germline testing with next generation sequencing in epithelial ovarian cancer: a prospective paired comparison using an 18‐gene panel

Molecular Oncology, EarlyView.
Genetic testing in epithelial ovarian cancer includes both germline and tumor‐testing. This approach often duplicates resources. The current prospective study assessed the feasibility of tumor‐first multigene testing by comparing tumor tissue with germline testing of peripheral blood using an 18‐gene NGS panel in 106 patients.
Elisabeth Spenard, Cristina Mitric, Melanie Care, Tracy L. Stockley, Raymond H. Kim, Jeanna McCuaig, Blaise Clarke, Laura Ranich, Clare Sheen, Sarah E. Ferguson, Liat Hogen, Taymaa May, Marcus Q. Bernardini   +12 more
wiley   +1 more source

Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing

The Astrophysical Journal
We present a new method to combine multimass equilibrium dynamical models and pulsar timing data to constrain the mass distribution and remnant populations of Milky Way globular clusters (GCs).
Peter J. Smith, Vincent Hénault-Brunet, Nolan Dickson, Mark Gieles, Holger Baumgardt   +4 more
doaj   +1 more source

Multiple Stellar Populations in Galactic GCs: Observational Evidence [PDF]

, 2008
G. Piotto
openalex   +1 more source

Screening for lung cancer: A systematic review of overdiagnosis and its implications

Molecular Oncology, EarlyView.
Low‐dose computed tomography (CT) screening for lung cancer may increase overdiagnosis compared to no screening, though the risk is likely low versus chest X‐ray. Our review of 8 trials (84 660 participants) shows added costs. Further research with strict adherence to modern nodule management strategies may help determine the extent to which ...
Fiorella Karina Fernández‐Sáenz, Laura de la Torre‐Perez, David R Baldwin, Carlijn van der Aalst, Mangesh Thorat, David Ritchie, Andre L Carvalho, Carolina Espina, Ivan Solà, Carlos Canelo‐Aybar, Moira Magdalena Pissinis, Pablo Alonso‐Coello, Ana Carolina Pereira Nunes Pinto   +12 more
wiley   +1 more source

A Study of Primordial Very Massive Star Evolution. II. Stellar Rotation and Gamma-Ray Burst Progenitors

The Astrophysical Journal
We calculate new evolutionary models of rotating primordial very massive stars, with initial mass from 100 M _⊙ to 200 M _⊙ , for two values of the initial metallicity Z = 0 and Z = 0.0002.
Guglielmo Volpato, Paola Marigo, Guglielmo Costa, Alessandro Bressan, Michele Trabucchi, Léo Girardi, Francesco Addari   +6 more
doaj   +1 more source

The Stellar Populations in the Central Parsecs of Galactic Bulges Central Stellar Populations

, 2004
We present Hubble Space Telescope blue spectra at intermediate spectral resolution for the nuclei of 23 nearby disk galaxies. These objects were selected to have nebular emission in their nuclei, and span a range of emission-line classifications as well as Hubble types.
Sarzi, Marc, Rix, Hans-Walter, Shields, Joseph C., Ho, Luis C., Barth, Aaron J., Rudnick, Gregory, Filippenko, Alexei V., Sargent, Wallace L. W.   +7 more
openaire   +2 more sources