Results 61 to 70 of about 296 (183)

Diagnostic Performance of Comprehensive Point‐of‐Care Ultrasound for Pediatric Tuberculosis in Spain: A Prospective Observational Study

Journal of Clinical Ultrasound, Volume 54, Issue 6, Page 1425-1432, July/August 2026.
In children with presumptive tuberculosis, comprehensive point‐of‐care (cPOCUS) identified key thoracic abnormalities with high specificity and excellent inter‐reader reliability. Although diagnostic sensitivity was modest and examinations often incomplete, cPOCUS shows promise as a complementary, radiation‐free imaging tool.
Isabelle Munyangaju, Antoni Noguera‐Julian, Aleix Soler‐Garcia, Antoni Soriano‐Arandes, José Miguel Escudero Fernández, Maria Espiau, Begoña Santiago Garcia, Alicia Hernanz‐Lobo, Ángel M. Lancharro Zapata, Enrique Ladera, Angela Manzanares, Daniel Blazquez, Elisa Aguirre Pascual, Isabelle Thierry‐Chef, Danilo Buonsenso, Xavier Serres‐Créixams, Quique Bassat, Elisa Lopez‐Varela   +17 more
wiley   +1 more source

Stellar Pulsation and Evolution: A Combined Theoretical Renewal and Updated Models (SPECTRUM). I. Updating Radiative Opacities for Pulsation Models of Classical Cepheid and RR-Lyrae

The Astrophysical Journal
Pulsating stars are universally recognized as precise distance indicators and tracers of stellar populations. Their variability, combined with well-defined relationships between pulsation properties and intrinsic evolutionary parameters such as ...
Giulia De Somma, Marcella Marconi, Santi Cassisi, Roberto Molinaro   +3 more
doaj   +1 more source

Variable Stars in M31 Stellar Clusters from the Panchromatic Hubble Andromeda Treasury

The Astrophysical Journal
Variable stars in stellar clusters can offer key constraints on stellar evolution and pulsation models, utilizing estimates of host cluster properties to constrain stellar physical parameters.
Richard Smith, Avi Patel, Monika D. Soraisam, Puragra Guhathakurta, Pranav Tadepalli, Sally Zhu, Joseph Liu, Léo Girardi, L. Clifton Johnson, Sagnick Mukherjee, Knut A. G. Olsen, Benjamin F. Williams   +11 more
doaj   +1 more source

Long‐term outcomes following a 5‐year recurrence‐free interval in non‐muscle‐invasive bladder cancer

BJU International, Volume 138, Issue 1, Page 125-132, July 2026.
Objective To describe the recurrence and progression trends of non‐muscle‐invasive bladder cancer (NMIBC) during a 14‐year period in Denmark between 2009 and 2022. Furthermore, to evaluate the risk of late recurrence with or without progression in patients who initially experience a 5‐year recurrence‐free interval (RFI).
Peter B. Hjort, Jørgen B. Jensen, Andreas Ernst   +2 more
wiley   +1 more source

Stellar Variability and Distance Indicators in the Near-infrared in Nearby Galaxies. I. RR Lyrae and Anomalous Cepheids in Draco Dwarf Spheroidal

The Astronomical Journal
The Draco Dwarf spheroidal (dSph) galaxy is one of the nearest and the most dark-matter-dominated satellites of the Milky Way. We obtained multiepoch near-infrared (NIR, JHK _s ) observations of the central region of Draco dSph covering a sky area of ∼21′
Anupam Bhardwaj, Marina Rejkuba, Chow-Choong Ngeow, Marcella Marconi, Vincenzo Ripepi, Abhinna Sundar Samantaray, Harinder P. Singh   +6 more
doaj   +1 more source

Self-consistent Nonlinear Classical Cepheid Pulsations during Stellar Evolution with MESA

The Astrophysical Journal
We extend the time-dependent convection (TDC) treatment in MESA by introducing eddy-viscous dissipation. This software change brings MESA-TDC into closer alignment with the radial stellar pulsation (RSP) framework of the MESA-RSP module.
Ebraheem Farag, Earl P. Bellinger, Philip Mocz, Selim Kalici, Radoslaw Smolec, Shashi Kanbur, Kyra Bettwy, Christopher Lindsay   +7 more
doaj   +1 more source

Variable stars in Galactic globular clusters

Astronomy & Astrophysics
We identified a sample of 88 bona fide Population II Cepheids (henceforth referred to as Cepheids) and 44 candidates in Galactic globular clusters (GCs). Seventy-eight of the Cepheids in the sample align within 2 σ of the period-luminosity relation for Milky Way Type II Cepheids (T2CEPs).
Mauricio Cruz Reyes, Richard I. Anderson, Susmita Das   +2 more
openaire   +2 more sources

Systematics in the Cepheid and TRGB Distance Scales: Metallicity Sensitivity of the Wesenheit Leavitt Law

The Astrophysical Journal
Using an updated and significantly augmented sample of Cepheid and tip of the red giant branch (TRGB) distances to 28 nearby spiral and irregular galaxies, covering a wide range of metallicities, we have searched for evidence of a correlation of the zero-
Barry F. Madore, Wendy L. Freedman
doaj   +1 more source

Non-particle dark matter from Hubble parameter

European Physical Journal C: Particles and Fields, 2019
The measurements of the Hubble parameter using the cosmic microwave background radiation appear to be inconsistent with the measurements of this parameter using Cepheid variable stars.
Nikodem J. Popławski
doaj   +1 more source

The OGLE Collection of Variable Stars. Anomalous Cepheids in the Magellanic Clouds

, 2015
18 pages, 9 figures, submitted to Acta ...
Soszynski, I., Udalski, A., Szymanski, M. K., Pietrzynski, G., Wyrzykowski, L., Ulaczyk, K., Poleski, R., Pietrukowicz, P., Kozlowski, S., Skowron, J., Skowron, D., Mroz, P., Pawlak, M.   +12 more
openaire   +2 more sources