Results 31 to 40 of about 73 (71)

Not So Fast: A New Catalog of Meteor Persistent Trains

Journal of Geophysical Research: Space Physics, Volume 129, Issue 7, July 2024.
Abstract This paper presents the results of a nearly 2‐year long campaign to detect and analyze meteor persistent trains (PTs)—self‐emitting phenomena which can linger up to an hour after their parent meteor. The modern understanding of PTs has been primarily developed from the Leonid storms at the turn of the century; our goal was to assess the ...
L. E. Cordonnier, K. S. Obenberger, J. M. Holmes, G. B. Taylor, D. Vida   +4 more
wiley   +1 more source

Influencia de la metalicidad en la Ley de Leavitt

, 2023
Este trabajo estudia la universalidad de la relación Periodo-Luminosidad, también conocida como Ley de Leavitt, y la posible influencia de la metalicidad de una galaxia para cambiar los resultados de esta relación.En este trabajo se determinó la ...
Reyes Usma, Sebastián Alejandro
core  

Lessons from COVID‐19: Aspects of prevention, therapeutics, and diagnostics against SARS‐CoV‐2 with special focus on JN.1 and XBB sublineages

MedComm – Future Medicine, Volume 3, Issue 2, June 2024.
The graphical abstract depicts the dominance of different SARS‐COV‐2 variants during the progression of COVID‐19 disease. It summarizes the strategies of infection curtailment and treatments, including the assessment of vaccine efficacy, neutralization effect of monoclonal antibodies, immune escape mechanism, and susceptibility of global antibodies ...
Puja Jaishwal, Upagya Gyaneshwari, Kisalay Jha, Brijesh Pandey, Thakur P. Yadav, Satarudra P. Singh   +5 more
wiley   +1 more source

Contribution of MALDI‐TOF mass spectrometry and machine learning including deep learning techniques for the detection of virulence factors of Clostridioides difficile strains

Microbial Biotechnology, Volume 17, Issue 6, June 2024.
This study assessed the use of MALDI‐TOF Mass Spectrometry combined with Machine Learning including Deep Learning techniques to identify toxigenic and hypervirulent strains of Clostridioides difficile. The method demonstrated high accuracy, particularly in excluding non‐toxigenic strains with a negative predictive value of 0.95 and consistently high ...
Alexandre Godmer, Quentin Giai Gianetto, Killian Le Neindre, Valentine Latapy, Mathilda Bastide, Muriel Ehmig, Valérie Lalande, Nicolas Veziris, Alexandra Aubry, Frédéric Barbut, Catherine Eckert   +10 more
wiley   +1 more source

Optical fiber-fed spectroscopy of pulsating variable stars.

, 2003
Cepheid variable stars are giant stars with unstable outer atmospheres which pulsate radially with periods of days to weeks. As the surface of the star approaches and recedes from the observer, there is a measureable Doppler shift in the star\u27s ...
Torres, Peter
core  

The photometry of three variable stars with Short Period: CY Aqr, GP And, and BP Peg

, 2011
[[abstract]]In this work, the observations present new times of maximum light with three variable stars in this investigation include GP And, BP Peg, and CY Aqr. The analysis of the light curve for each of the variables were showed small period changes.
李奇欣
core  

Application of Convolutional Neural Networks to time domain astrophysics. 2D image analysis of OGLE light curves

In recent years the amount of publicly available astronomical data has increased exponentially, with a remarkable example being large-scale multiepoch photometric surveys.
N. Monsalves, M. Jaque Arancibia, P. Sánchez-Sáez, G. Damke, J. Segura Van de Perre, R. Angeloni, A. Bayo   +6 more
core   +1 more source

Study on period search methods of variable stars: Application to ASAS and CRTS databases

, 2013
Study on variable stars is an important topic of modern astrophysics. After the invention of powerful telescopes and high resolving powered CCD’s, the variable star data is accumulating in the order of peta-bytes.
Ramesh Babu, T, Shaju, K Y
core  

Abstract Supplement HIV Glasgow 10–13 November 2024, Glasgow, UK/Virtual

Journal of the International AIDS Society, Volume 27, Issue S6, November 2024.
wiley   +1 more source

A half century of infrared astronomy - A personal recollection of the footprints in Japan. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci, 2019
Okuda H.
europepmc   +1 more source