Results 61 to 70 of about 22,483 (180)

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

Oral pre‐exposure prophylaxis initiation, continuation and adherence among pregnant and postpartum women receiving antenatal and postnatal care: a systematic review

Journal of the International AIDS Society, Volume 28, Issue S5, September 2025.
Abstract Introduction In 2023, one‐fourth of new HIV acquisitions in children globally resulted from vertical transmission following incident HIV during pregnancy or breastfeeding. Oral pre‐exposure prophylaxis (PrEP) with tenofovir disoproxil and emtricitabine is safe and effective in pregnancy and postpartum, with long‐acting options emerging ...
Anke Rotsaert, Zaynab Essack, Shannon Bosman, Dvora Joseph Davey, Bernadette Hensen   +4 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

Human Papillomavirus (HPV) Screening With Universal Access to Vaginal Self‐Testing: Outcomes of an Implementation Trial

BJOG: An International Journal of Obstetrics &Gynaecology, Volume 132, Issue 9, Page 1240-1249, August 2025.
ABSTRACT Objective Determine the feasibility of high‐risk human papillomavirus (HPV)‐based cervical screening that included the option of a vaginal swab HPV test (vaginal self‐test). Design Implementation trial. Setting 17 primary care practices. Population or Sample People due for a cervical screening test.
Peter Sykes, Carrie Innes, Rebecca Bell, Janine Nip, John McMenamin, Lynn McBain, Ben Hudson, Melanie Gibson, Sarah Te Whaiti, Alexandria Tino, Jonathan Williman, Andrew Miller, Beverley Lawton   +12 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

Balancing Efficiency and Accuracy in Hepatitis C Rapid Antibody Testing: Insights From a Cluster Randomised Crossover Trial

Journal of Viral Hepatitis, Volume 32, Issue 8, August 2025.
ABSTRACT Hepatitis C remains a significant global health problem, particularly among people who inject drugs. To achieve Australia's 2030 elimination targets, efficient testing strategies are needed. The OraQuick rapid antibody test provides results in 20 min, but many non‐viraemic individuals with resolved infections test positive, potentially leading
K. Heath, R. Guzman, I. Elsum, A. J. Wade, K. Allardice, J. Kasza, M. Bryant, A. J. Thompson, M. Stoové, T. Snelling, N. Scott, T. Spelman, D. A. Anderson, J. Richmond, J. Howell, N. Andric, P. Dietze, P. Higgs, R. Sacks‐Davis, A. Forbes, M. E. Hellard, A. E. Pedrana, J. S. Doyle   +22 more
wiley   +1 more source

The Orbit and Mass of the Cepheid AW Per

The Astrophysical Journal
The Cepheid AW Per is a component in a multiple system with a long-period orbit. The radial velocities of Griffin cover the 38 yr orbit well. An extensive program of interferometry with the Center for High Angular Resolution Astronomy array is reported ...
Nancy Remage Evans, Alexandre Gallenne, Pierre Kervella, Antoine Mérand, John Monnier, Richard I Anderson, H. Moritz Günther, Charles Proffitt, Elaine M. Winston, Grzegorz Pietrzynski, Wolfgang Gieren, Joanna Kuraszkiewicz, Narsireddy Anugu, Rachael M. Roettenbacher, Cyprien Lanthermann, Mayra Gutierrez, Gail Schaefer, Benjamin R. Setterholm, Noura Ibrahim, Stefan Kraus   +19 more
doaj   +1 more source

IS POLARIS LEAVING THE CEPHEID INSTABILITY STRIP?

Odessa Astronomical Publications, 2017
Although Polaris is generally regarded as an overtone pulsator that may soon switch to pulsation in the fundamental mode, it is argued that the variable is actually crossing the instability strip for the first time and is in the process of leaving the ...
D. G. Turner
doaj   +1 more source

‘Raise the Bar’, a Canadian intervention to combat disparities in the recognition and management of iron deficiency: Development of the intervention, feasibility and implementation

British Journal of Haematology, Volume 207, Issue 5, Page 2219-2223, November 2025.
Grace H. Tang, Zoe Phillips, Susan Poutanen, Paul Yip, Davor Brinc, Elaine Goh, Mark Cheung, Menaka Pai, Curtis Oleschuk, Daniel Beriault, Cristiana Stefan, Larissa Matukas, David Good, Angela Weyand, Jillian Baker, Mark Crowther, Jacob Cogan, Nicole White‐AlHabeeb, Zahraa Mohammed‐Ali, Miranda Wozniak, Dana Nyholt, Sonieya Nagarajah, Carine Bekdache, Hui Li, Hasan Ghaffar, Kika Veljkovic, Uvaraj Uddayasankar, Lusia Sepiashvili, Peter Catomeris, Rita Selby, Michelle Sholzberg   +30 more
wiley   +1 more source

Chicago–Carnegie Hubble Program: A Multiwavelength Search for the Effects of Metallicity on the Cepheid Distance Scale. I. Empirical Evidence

The Astrophysical Journal
Understanding the effects of metallicity on the multiwavelength properties of Cepheids is of continuing importance for their effective use as extragalactic distance indicators and an accurate measure of the Hubble constant, H _0 .
Barry F. Madore, Wendy L. Freedman
doaj   +1 more source