Results 81 to 90 of about 10,963 (195)

Shifts in Respiratory Virus Epidemiology on Reunion Island From 2017 to 2023: Impact of COVID‐19 Pandemic and Non‐Pharmaceutical Interventions

open access: yesInfluenza and Other Respiratory Viruses, Volume 19, Issue 3, March 2025.
ABSTRACT Background The COVID‐19 pandemic has reshaped the landscape of respiratory viral infections globally. This study examines these changes on Reunion Island, a French department in the southeastern Indian Ocean. Methods Retrospective data from 2017 to 2023, from over 24,000 samples collected across the hospital system, partner laboratories, and a
Nicolas M'nemosyme   +17 more
wiley   +1 more source

Binary Cepheids from optical interferometry

open access: yes, 2013
Classical Cepheid stars have been considered since more than a century as reliable tools to estimate distances in the universe thanks to their Period-Luminosity (P-L) relationship.
A. Gallenne   +6 more
core   +1 more source

A Novel q-PED Method: Precise Physical Properties of a Merger-origin Binary Cepheid OGLE-LMC-CEP-1347

open access: yesThe Astrophysical Journal Letters
Recently, a double-lined binary classical Cepheid, OGLE-LMC-CEP-1347, was discovered with the orbital period ( P _orb  = 59 days), 5 times shorter than that of any binary Cepheid known before.
Felipe Espinoza-Arancibia   +1 more
doaj   +1 more source

NEW ASPECT OF SMALL-AMPLITUDE CEPHEID SU CAS

open access: yesOdessa Astronomical Publications, 2008
New 17 high-resolutional spectra of small-amplitude Cepheid SU Cas have been obtained to determine its atmosphere parameters (Teff=6353 K; log g=2.38; Vt=3.25 km s -1 and to measure its radial velocities.
I. A. Usenko   +2 more
doaj   +1 more source

Zwicky Transient Facility and Globular Clusters: The Period–Luminosity and Period–Wesenheit Relations for Anomalous Cepheids Supplemented with Large Magellanic Cloud Sample

open access: yesThe Astronomical Journal, 2022
We present the first gri -band period–luminosity (PL) and period–Wesenheit (PW) relations for the fundamental mode anomalous Cepheids. These PL and PW relations were derived from a combined sample of five anomalous Cepheids in globular cluster M92 and ...
Chow-Choong Ngeow   +5 more
doaj   +1 more source

Underserved Patient Populations With Metastatic Breast Cancer: A Review of Progress and Remaining Challenges

open access: yesThe Breast Journal, Volume 2025, Issue 1, 2025.
Breast cancer presents a significant risk to public health and is the primary cause of cancer‐related death in women. Awareness of metastatic breast cancer (mBC) continues to increase, and advances have been made; however, challenges remain for many patient populations that do not receive equal opportunities along the treatment pathway. The Underserved
Fatima Cardoso   +12 more
wiley   +1 more source

The distance to the Small Magellanic Cloud from multiband period-luminosity relations for classical Cepheids and its dependence on metallicity

open access: yesEPJ Web of Conferences, 2017
We present a distance determination to the Small Magellanic Cloud (SMC) using optical and near-infrared photometry from OGLE and IRSF. Applying a multiband method to V, I, J, H and K OGLE and IRSF data, we measured the SMC true distance modulus and mean ...
Wielgorski Piotr   +2 more
doaj   +1 more source

Determinants of psychological distress during the COVID‐19 pandemic among people who use drugs in Montreal, Canada

open access: yesDrug and Alcohol Review, Volume 43, Issue 7, Page 2077-2088, November 2024.
Abstract Introduction Limited data exists on psychological impacts of the COVID‐19 pandemic among people who use drugs (PWUD). This study aimed to determine the prevalence and correlates of severe psychological distress (PD) among PWUD in Montreal around the beginning of the pandemic.
Iuliia Makarenko   +7 more
wiley   +1 more source

Cepheid variables in the LMC cluster NGC 1866. I. New BVRI CCD photometry

open access: yes, 2000
We report BV(RI)c CCD photometric data for a group of seven Cepheid variables in the young, rich cluster NGC 1866 in the Large Magellanic Cloud. The photometry was obtained as part of a program to determine accurate distances to these Cepheids by means ...
Bell R. A.   +18 more
core   +2 more sources

Prospects for X-Ray and FUV Observations to Provide Insight Into the “Cepheid Mass Problem”

open access: yesFrontiers in Astronomy and Space Sciences, 2019
The classical Cepheid Leavitt Law (Period-Luminosity relation) has been known for 100 years, and used in extragalactic distance determination for nearly as long.
Nancy Remage Evans, Scott Engle
doaj   +1 more source

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