Results 31 to 40 of about 1,730 (181)

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

Incidence of HIV and HCV Among People Who Inject Drugs in Montreal, Canada: Data From the HEPCO Longitudinal Cohort Study, 2011–2025

Journal of Viral Hepatitis, Volume 33, Issue 6, June 2026.
ABSTRACT Ongoing monitoring of hepatitis C virus (HCV) and HIV incidence among people who inject drugs (PWID) is important for epidemic control and assessing progress towards disease elimination. We estimated trends in HIV and HCV infection incidence in a community‐based cohort of PWID in Montreal, Canada.
Bluma Blake Kleiner, Milca Meconnen, Marleine Azar, Nanor Minoyan, Geng Zang, Adelina Artenie, Valérie Martel‐Laferrière, Didier Jutras‐Aswad, Julie Bruneau, Sarah Larney   +9 more
wiley   +1 more source

THE EXTRAGALACTIC DISTANCE SCALE WITHOUT CEPHEIDS. IV. [PDF]

The Astrophysical Journal, 2011
ApJ in press ...
Hislop, Lachlan, Mould, Jeremy, Schmidt, Brian, Bessell, Michael, Da Costa, Gary, Francis, Paul, Keller, Stefan, Tisserand, Patrick, Rapoport, Sharon, Casey, Andrew   +9 more
openaire   +3 more sources

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

Paediatric and Adult Solid Tumours Exhibiting NTRK Gene Fusions in Australia, 2020–2044: A Population‐Based Statistical Modelling Study

Cancer Medicine, Volume 15, Issue 5, May 2026.
We projected 1‐year to 5‐year cancer prevalence associated with NTRK gene fusions in Australia, from 2020 to 2044, for all paediatric cancers combined (age < 18 years at diagnosis), all adult solid cancers combined, 18 cancer types/groups, and 5 cancer sub‐types relevant to current Australian government subsidies of TRK inhibitors.
Qingwei Luo, Yoon‐Jung Kang, Jeff Cuff, John Zalcberg, Karen Canfell, Julia Steinberg   +5 more
wiley   +1 more source

Cepheid-based Distances to NGC 4303 and NGC 1068

The Astrophysical Journal
We present Cepheid-based distances to two canonical active galactic nuclei: NGC 4303 (M61) and NGC 1068. Data were obtained using the Hubble Space Telescope with nonredundant time spacing over 12 visits for each target, and observations were made with ...
Madison Markham, Misty C. Bentz, Laura Ferrarese, Christopher A. Onken, Marianne Vestergaard   +4 more
doaj   +1 more source

Prevalence and Risk Factors of Elevated Alanine Aminotransferase (ALT) in 2382 Treatment‐naïve HBV/HDV Co‐Infected Patients

Liver International, Volume 46, Issue 4, April 2026.
ABSTRACT Background Chronic hepatitis D (CHD) causes severe chronic hepatitis. Knowledge is limited about factors correlating with ALT in treatment‐naïve patients with CHD. This study analysed the pattern and determinants of ALT elevation in a large cohort of patients with CHD, including young adults, compared to propensity score‐matched (PSM) patients
Habiba Kamal, Ganbolor Jargalsaikhan, Sanjaasuren Enkhtaivan, Karin Lindahl, Hannes Hagström, Daniel Bruce, Michael Ingre, Bekhbold Dashtserenx, Oyungerel Lkhagva‐Ochir, Tuvshinjargal Ulziibadrakh, Andreas Bungert, Heiner Wedemeyer, Naranjargal B. Dashdorj, Soo Aleman   +13 more
wiley   +1 more source

A Cepheid Distance to the Fornax Cluster

, 1998
The Hubble Space Telescope is being used to measure accurate Cepheid distances to nearby galaxies with the ultimate aim of determining the Hubble constant, H_0. For the first time, it has become feasible to use Cepheid variables to derive a distance to a galaxy in the southern hemisphere cluster of Fornax.
Madore, B. F., Freedman, W. L., Silbermann, N., Harding, P., Huchra, J., Mould, J. R., Graham, J. A., Ferrerase, L., Gibson, B. K., Han, M., Hoessel, J. G., Hughes, S. M., Illingworth, G. D., Phelps, R., Sakai, S., Stetson, P.   +15 more
openaire   +2 more sources

HipparcosParallaxes and the Cepheid Distance Scale [PDF]

The Astrophysical Journal, 1998
15 pages, 4 figures, Ap. J.
Madore, Barry F., Freedman, Wendy L.
openaire   +2 more sources

Cardiovascular Disease Mortality Patterns Among People With Cancer in New South Wales, Australia: A Population‐Wide Data Linkage Study

Cancer Medicine, Volume 15, Issue 3, March 2026.
ABSTRACT Objective To investigate cardiovascular disease (CVD) mortality patterns among people with cancer in New South Wales (NSW) compared to the NSW general population and trends over time. Design Population‐wide retrospective data‐linkage study. Participants and Setting 873,344 people aged ≥ 40 diagnosed with primary invasive cancer and registered ...
Md Mijanur Rahman, Karen Canfell, Katy Bell, Grace Joshy, Michael David, Anne Cust, David Goldsbury, Bogda Koczwara, Emily Banks, Xue Qin Yu   +9 more
wiley   +1 more source