Results 41 to 50 of about 10,963 (195)

Causes and Seasonality of Upper Respiratory Infections in Adults in Lesotho (2021–2022) (CORIAL)

Canadian Journal of Infectious Diseases and Medical Microbiology, Volume 2026, Issue 1, 2026.
Background Upper respiratory tract infections cause morbidity and a high burden on healthcare systems worldwide, especially in low‐ and lower middle‐income countries. Recent studies throughout Africa indicate seasonal patterns that deviate from those previously described in settings with temperate climates.
Nikita Sass, Linda Janita Wüthrich, Flor Lucia Gonzalez Fernandez, Emmanuel Firima, Tracy R. Glass, Moniek Bresser, Josephine Muhairwe, Bulemba Katende, Mamello Molatelle, Irene Ayakaka, Daniel Goldenberger, Kinga Feuz, Pascal Schlaepfer, Klaus Reither, Niklaus D. Labhardt, Mamunur Rahman Malik   +15 more
wiley   +1 more source

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

Abstract Supplement

Pulmonary Medicine, Volume 2026, Issue 1, 2026.
 
Marzia Folegani, Semonti Nandi
wiley   +1 more source

The Araucaria Project. The Distance to the Local Group Galaxy WLM from Cepheid Variables discovered in a Wide-Field Imaging Survey

, 2007
We have conducted an extensive wide-field imaging survey for Cepheid variables in the Local Group irregular galaxy WLM. From data obtained on 101 nights, we have discovered 60 Cepheids which include 14 of the 15 Cepheid variables previously detected by ...
Alejandro Garcia, Andrzej Udalski, Dante Minniti, Fabio Bresolin, Gieren W., Grzegorz Pietrzyński, Igor Soszyński, Marcin Kubiak, Michał Szymański, Olaf Szewczyk, Rolf-Peter Kudritzki, Ronald Mennickent, Schwarzenberg-Czerny A., Simon N. R., Udalski A., Udalski A., Udalski A., Udalski A., Udalski A., Wolfgang Gieren, Wozniak P., Łukasz Wyrzykowski   +21 more
core   +1 more source

Cepheid Period-Radius and Period-Luminosity Relations and the Distance to the LMC [PDF]

, 1997
We have used the infrared Barnes-Evans surface brightness technique to derive the radii and distances of 34 Galactic Cepheid variables. Radius and distance results obtained from both versions of the technique are in excellent agreement.
Bell R. A., Berdnikov L. N., Bersier D., Caccin B., Coulson I. M., Feast M. W., Fouque P., Gieren W. P., Gieren W. P., Giridhar S., Gorynya N. A., Gorynya N. A., Laney C. D., Laney C. D., Laney C. D., Laney C. D., Lloyd Evans T., Matias Gomez, Mermilliod J.-C., Pascal Fouque, Pel J. W., Pont F., Quintana H., Ripepi V., Sasselov D. D., Wolfgang P. Gieren   +25 more
core   +3 more sources

Chicago–Carnegie Hubble Program: A Multiwavelength Search for the Effects of Metallicity on the Cepheid Distance Scale. II. Theoretical Models and Synthetic Spectra

The Astrophysical Journal
This is the second of two papers exploring the effects of metallicity on the multiwavelength properties of Cepheids in terms of their multiwavelength period–luminosity (PL) relations, impacting their use as extragalactic distance indicators and ...
Barry F. Madore, Wendy L. Freedman, Kayla Owens   +2 more
doaj   +1 more source

Invasive disease‐free and overall survival after (neo)adjuvant chemotherapy in postmenopausal patients with hormone receptor‐positive, HER2‐negative early breast cancer treated with upfront letrozole: Experiences from the phase IV PreFace trial

International Journal of Cancer, Volume 157, Issue 11, Page 2363-2373, 1 December 2025.
What's New? Neoadjuvant chemotherapy (NACT) can be highly effective for patients with early‐stage breast cancer. Patients with hormone receptor‐positive (HRpos), HER2‐negative (HER2neg) breast cancer, however, may benefit less from NACT. Here, the authors investigated survival outcomes with adjuvant chemotherapy or NACT in a population of ...
Milena Beierlein, Lothar Häberle, Naiba Nabieva, Nicolai Maass, Bahriye Aktas, Sherko Kümmel, Christoph Thomssen, Christopher Wolf, Hans‐Christian Kolberg, Cosima Brucker, Wolfgang Janni, Peter Dall, Andreas Schneeweiss, Frederik Marme, Marc W. Sütterlin, Matthias Ruebner, Anna‐Katharin Theuser, Nadine M. Hofmann, Sybille Böhm, Katrin Almstedt, Sara Kellner, Paul Gass, Hans‐Joachim Lück, Alexander Hein, Sabine Schmatloch, Matthias Kalder, Christoph Uleer, Ingolf Juhasz‐Böss, Volker Hanf, Christian Jackisch, Volkmar Müller, Brigitte Rack, Erik Belleville, Diethelm Wallwiener, Achim Rody, Claudia Rauh, Chistian M. Bayer, Sabrina Uhrig, Hanna Huebner, Chloë Goossens, Sara Y. Brucker, Carolin C. Hack, Tanja N. Fehm, Peter A. Fasching   +43 more
wiley   +1 more source

Discovery of the Longest-period Classical Cepheid in the Milky Way

The Astrophysical Journal Letters
We report the discovery of the classical Cepheid OGLE-GD-CEP-1884 (= GDS_J1535467-555656) with the longest pulsation period known in our Galaxy. The period of 78.14 days is nearly 10 days longer than that of the previous record-holding Cepheid, S ...
I. Soszyński, D. M. Skowron, A. Udalski, P. Pietrukowicz, M. Gromadzki, M. K. Szymański, J. Skowron, P. Mróz, R. Poleski, S. Kozłowski, P. Iwanek, M. Wrona, K. Ulaczyk, K. Rybicki, M. Mróz   +14 more
doaj   +1 more source

RR Lyrae and Type II Cepheid Variables in Globular Clusters: Optical and Infrared Properties

Universe, 2022
Globular clusters are both primary fossils of galactic evolution and formation and are ideal laboratories for constraining the evolution of low-mass and metal-poor stars.
Anupam Bhardwaj
doaj   +1 more source

Cepheid and SNIa Distance Scales

, 2001
We first discuss why there remains continuing, strong motivation to investigate Hubble's Constant. Then we review new evidence from an investigation of the Galactic Open Clusters containing Cepheids by Hoyle et al. that the metallicity dependence of the Cepheid P-L relation is stronger than expected. This result is supported by a new analysis of mainly
Shanks, T., Allen, P. D., Hoyle, F., Tanvir, N. R.   +3 more
openaire   +2 more sources