Results 71 to 80 of about 577 (218)

Negative Xpert HPV Test (Cepheid) With Late Amplification Signals: Is There a Clinical Significance? (the PaPCR Study)

Journal of Medical Virology, Volume 98, Issue 4, April 2026.
ABSTRACT Cervical cancer is the fourth most common cancer among women worldwide, with higher prevalence in low‐resource countries due to limited access to screening and HPV vaccination. Nucleic acid amplification tests (NAATs) such as Xpert HPV (Cepheid), enable rapid detection of high‐risk HPV (HR‐HPV) genotypes.
Valentin Lemoine, Romain Legros, Sylvain Rosec, Camille Salaun, Adissa Tran‐Minoui, Léa Pilorgé, Sophie Vallet, Anne Le Gourrierec, Pierre Alemany, Pascale Marcorelles, Christopher Payan   +10 more
wiley   +1 more source

The evolution of the Galactic nuclear bulge traced by Cepheid variable stars [PDF]

Journal of Physics: Conference Series, 2012
The Galactic nuclear bulge hosts significant populations of young stars, within a few hundred parsecs around the Galactic Centre, unlike the more extended bulge. Recently, we discovered classical Cepheid variable stars (hereinafter Cepheids) in the Galactic nuclear bulge.
openaire   +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

Mock Samples That Mimic Human Cervicovaginal Samples to Accelerate the Development and Evaluation of Assays for High‐Risk HPV for Cervical Cancer Screening

Journal of Medical Virology, Volume 98, Issue 4, April 2026.
ABSTRACT Nearly all cervical cancer cases are caused by high‐risk human papillomavirus (hrHPV) infections. The World Health Organization recommends screening for hrHPV using nucleic acid amplification tests (NAATs) that detect hrHPV DNA or mRNA. Lack of access to affordable, point‐of‐care screening tests in resource‐limited settings leads to women ...
Emilie Newsham Novak, Ariel Ma, Cannon J. Hansen, Zoha Wazir, Meaghan Bond, Michael E. Scheurer, Ming Guo, Mila P. Salcedo, Kathleen M. Schmeler, Rebecca R. Richards‐Kortum   +9 more
wiley   +1 more source

Investigating Fourier Coefficient Relationships of Cepheid Variable Stars

, 2019
Cepheid stars are valuable due to their usefulness in determining distances within our galaxy, and to other galaxies. Cepheid stars’ light variation can be parameterized using a Fourier series with coefficients Ai and i . Fourier coefficients have been
Morgan, Siobahn, Cronin, Forrest
core  

Using Cepheid Variable Pulsation Properties to Trace Galaxy Age and Metallicity [PDF]

Cepheid variable stars have long been used as distance indicators due to their strong period-luminosity relation. However, the period of a Cepheid is affected by its metallicity so any difference in metal-content between calibration Cepheids and Cepheids
Short, L
core   +1 more source

Self-consistent Nonlinear Classical Cepheid Pulsations during Stellar Evolution with MESA

The Astrophysical Journal
We extend the time-dependent convection (TDC) treatment in MESA by introducing eddy-viscous dissipation. This software change brings MESA-TDC into closer alignment with the radial stellar pulsation (RSP) framework of the MESA-RSP module.
Ebraheem Farag, Earl P. Bellinger, Philip Mocz, Selim Kalici, Radoslaw Smolec, Shashi Kanbur, Kyra Bettwy, Christopher Lindsay   +7 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

CCD Photometry of Cepheid Variable

, 2008
The main purpose of this project is to become familiar with the techniques and methods of observational astronomy and CCD photometry. I will observe the brightness of stars and deduce some properties of these stars from these observations.
Demarais, Benjamin T.
core  

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