Results 71 to 80 of about 4,708,970 (236)

UBVRIJKL light curves of classical Cepheids [PDF]

Photoelectric observations and light curves of UBVRIJKL system for classical Cepheid variable stars - tables and ...
Johnson, H. L., Wisniewski, W. Z.
core   +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

OGLE-IV Period–Luminosity Relation of the LMC: An Analysis Using Mean and Median Magnitudes

The Astronomical Journal
The Period–Luminosity (PL) relation for Cepheid variable stars in the LMC is crucial for distance measurements in astronomy. This study analyzes the impact of using the median rather than the mean of the PL relation’s slope and zero-point.
Jaime Muñoz, Alejandro García-Varela, Santiago Henao-Castellanos, Beatriz Sabogal, Luis Felipe Giraldo, Jorge Martínez   +5 more
doaj   +1 more source

Asteroseismology, standard candles and the Hubble Constant: what is the role of asteroseismology in the era of precision cosmology?

, 2013
Classical Cepheids form one of the foundations of modern cosmology and the extragalactic distance scale, however, cosmic microwave background observations measure cosmological parameters and indirectly the Hubble Constant, H0, to unparalleled precision ...
Biesiada, Marek, Evans, Nancy Remage, Marconi, Marcella, Neilson, Hilding R., Ngeow, Chow-Choong, Reese, Daniel R.   +5 more
core   +1 more source

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

Converging on the Cepheid Metallicity Dependence: Implications of Nonstandard Gaia Parallax Recalibration on Distance Measures

The Astrophysical Journal
By comparing Cepheid brightnesses with geometric distance measures including Gaia EDR3 parallaxes, most recent analyses conclude metal-rich Cepheids are brighter, quantified as γ ∼ −0.2 mag dex ^−1 .
Louise Breuval, Gagandeep S. Anand, Richard I. Anderson, Rachael Beaton, Anupam Bhardwaj, Stefano Casertano, Gisella Clementini, Mauricio Cruz Reyes, Giulia De Somma, Martin A. T. Groenewegen, Caroline D. Huang, Pierre Kervella, Saniya Khan, Lucas M. Macri, Marcella Marconi, Javier H. Minniti, Adam G. Riess, Vincenzo Ripepi, Martino Romaniello, Daniel Scolnic, Erasmo Trentin, Piotr Wielgórski, Wenlong Yuan   +22 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

No Evidence for Classical Cepheids and a New Dwarf Galaxy Behind the Galactic Disk

, 2015
Based on data from the ongoing OGLE Galaxy Variability Survey (OGLE GVS) we have verified observed properties of stars detected by the near-infrared VVV survey in a direction near the Galactic plane at longitude l~-27 deg and recently tentatively ...
Kozlowski, S., Mroz, P., Pawlak, M., Pietrukowicz, P., Pietrzynski, G., Poleski, R., Skowron, J., Soszynski, I., Szymanski, M. K., Udalski, A., Ulaczyk, K., Wyrzykowski, L.   +11 more
core   +1 more source

Toward a Comprehensive Grid of Cepheid Models with MESA. II. Impact of Physical and Numerical Assumptions on Elemental Abundances

The Astrophysical Journal Supplement Series
Modern tools for modeling stellar evolution, such as the Modules for Experiments in Stellar Astrophysics, offer state-of-the-art implementations of stellar theories.
O. Ziółkowska, R. Smolec, A. Thoul, R. Singh Rathour, V. Hocdé   +4 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