Results 61 to 70 of about 399 (192)

Classification of Periodic Variable Stars from TESS

The Astrophysical Journal Supplement Series
The number of known periodic variable stars has increased rapidly in recent years. As an all-sky transit survey, the Transiting Exoplanet Survey Satellite (TESS) plays an important role in detecting low-amplitude variable stars.
Xinyi Gao, Xiaodian Chen, Shu Wang, Jifeng Liu   +3 more
doaj   +1 more source

All‐Oral Shorter Treatment Regimens for Multidrug‐ and Rifampicin‐Resistant Tuberculosis: Evaluating Their Effectiveness, Safety, and Impact on the Quality of Life of Patients in Lao PDR

Tropical Medicine &International Health, Volume 30, Issue 12, Page 1340-1353, December 2025.
ABSTRACT Background Drug‐resistant tuberculosis remains a major public health challenge in Lao PDR, with low second‐line treatment uptake and suboptimal outcomes. To improve effectiveness, safety, and tolerability, a shorter all‐oral regimen for multidrug‐ and rifampicin‐resistant tuberculosis (MDR/RR‐TB) was introduced under the TDR Short, all‐Oral ...
Vibol Iem, Sakhone Suthepmany, Vongkham Inthavong, Anousone Sisouvanh, Khamloun Choumlivong, Kyung Hyun Oh, Philipp du Cros, Fatimata Bintou Sall, Corinne S. Merle, Jacques Sebert, Donekham Inthavong   +10 more
wiley   +1 more source

The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. VII. Classical Cepheids in the Small Magellanic Cloud [PDF]

, 2010
I. Soszyński, R. Poleski, A. Udalski, M. K. Szymański, M. Kubiak, G. Pietrzyński, Ł. Wyrzykowski, O. Szewczyk, K. Ulaczyk   +8 more
openalex   +3 more sources

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

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

CEPHEID VARIABLE STARS IN THE PEGASUS DWARF IRREGULAR GALAXY: CONSTRAINTS ON THE STAR FORMATION HISTORY

The Astronomical Journal, 2009
Observations of the resolved stars obtained over a period of 11 years in the Local Group dwarf irregular galaxy Pegasus have been used to search for Cepheid variable stars. Images were obtained in 55 epochs in the V band and in 24 epochs in the I band. We have identified 26 Cepheids and have obtained their light curves and periods.
Santi Cassisi, Antonio Aparicio, I. Meschin, Alfred Rosenberg, Carme Gallart   +4 more
openaire   +2 more sources

Rebound of Respiratory Virus Activity and Seasonality to Pre‐Pandemic Patterns

Journal of Medical Virology, Volume 97, Issue 11, November 2025.
ABSTRACT The emergence of SARS‐CoV‐2 and the implementation of non‐pharmaceutical interventions (NPIs) profoundly disrupted the transmission dynamics of respiratory viruses, altering their epidemiology and seasonality. However, comprehensive long‐term data on these shifts and their post‐pandemic implications remain limited.
Rainer Gosert, Klaudia Naegele, Marvin Weiss, Roland Bingisser, Christian H. Nickel, Jakob Meyer, Martin Siegemund, Stefano Bassetti, Sarah Dräger, Christoph T. Berger, Fabian Franzek, Ulrich Heininger, Julia Bielicki, Hans H. Hirsch, Peter M. Keller, Maja Weisser, Nina Khanna, Sarah Tschudin‐Sutter, Karoline Leuzinger   +18 more
wiley   +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

Saliva and Anterior Nasal Samples for Detecting Respiratory Viruses in Children

APMIS, Volume 133, Issue 11, November 2025.
ABSTRACT For detecting respiratory viruses, a nasopharyngeal swab sample for polymerase chain reaction (PCR) assays has been the benchmark. Less discomfort related to sampling is requested especially for children, and thus other sample types have been suggested.
Anu Haaramo, Anu Jääskeläinen, Anne Pitkäranta, Mikael Kuitunen, Enni Sanmark, Johanna Nokso‐Koivisto   +5 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