Results 41 to 50 of about 201,996 (278)

Half a Million M Dwarf Stars Characterized Using Domain-adapted Spectral Analysis

The Astrophysical Journal Supplement Series
We present fundamental atmospheric parameters ( T _eff and $\mathrm{log}\,g$ ) and metallicities ([M/H]) for 507,513 M dwarf stars using low-resolution spectra ( R  ∼ 1800) from LAMOST DR10.
Shuo Zhang, Hua-Wei Zhang, Yuan-Sen Ting, Rui Wang, Teaghan O’Briain, Hugh R. A. Jones, Derek Homeier, A-Li Luo   +7 more
doaj   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Discovery of an Extremely r-process-enhanced Thin-disk Star with [Eu/H] = +0.78

The Astrophysical Journal Letters
Highly r -process-enhanced (RPE) stars are rare and usually metal poor ([Fe/H] < −1.0), and they mainly populate the Milky Way halo and dwarf galaxies. This study presents the discovery of a relatively bright ( V = 12.72), highly RPE ( r -II) star ([Eu ...
Xiao-Jin Xie, Jianrong Shi, Hong-Liang Yan, Tian-Yi Chen, Carlos Allende Prieto, Timothy C. Beers, Shuai Liu, Chun-Qian Li, Ming-Yi Ding, Yao-Jia Tang, Ruizhi Zhang, Renjing Xie   +11 more
doaj   +1 more source

An Eclipsing Binary Comprising Two Active Red Stragglers of Identical Mass and Synchronized Rotation: A Post-mass-transfer System or Just Born That Way?

The Astrophysical Journal, 2023
We report the discovery of 2M0056–08 as an equal-mass eclipsing binary (EB), comprising two red straggler stars (RSSs) with an orbital period of 33.9 days. Both stars have masses of ≈1.419 M _⊙ , identical to within 0.2%.
Keivan G. Stassun, Guillermo Torres, Marina Kounkel, Benjamin M. Tofflemire, Emily Leiner, Dax L. Feliz, Don M. Dixon, Robert D. Mathieu, Natalie Gosnell, Michael Gully-Santiago   +9 more
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Time-series Spectroscopy and TESS Photometry of the Oscillating Eclipsing Algol System V389 Cassiopeiae

The Astronomical Journal
We present the results from a detailed analysis of our time-series spectroscopic observations and the Transiting Exoplanet Survey Satellite (TESS) photometric data of the eclipsing binary V389 Cas.
Pakakaew Rittipruk, Kyeongsoo Hong, Jae Woo Lee, Anirut Phriksee, Supachai Awiphan, Jae-Rim Koo, Jang-Ho Park   +6 more
doaj   +1 more source

Accurate fundamental parameters of CoRoT asteroseismic targets: the solar-like stars HD 49933, HD 175726, HD 181420 and HD 181906

, 2009
The CoRoT satellite has provided high-quality light curves of several solar-like stars. Analysis of the light curves provides oscillation frequencies that make it possible to probe the interior of the stars.
Alcock, Andersen, Appourchaux, Bessell, Bruntt, Bruntt, Cenarro, Christensen-Dalsgaard, Clausen, Collet, Frankowski, Gillon, Grevesse, Gustafsson, H. Bruntt, Hauck, Heiter, Kjeldsen, Kovtyukh, Kovtyukh, Kupka, Makarov, Martell, Masana, Mayor, Michel, Mosser, Mosser, Nordström, North, North, Petrov, Pietrinferni, Ramírez, Rentzsch-Holm, Rogers, Solano, Stello, Valenti, van Leeuwen   +39 more
core   +3 more sources

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

FEBS Letters, EarlyView.
Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii, Edoardo Andrea Cutolo, Daniele Montepietra, Claudia Battarra, Roberto Caferri, Stefano Capaldi, Zeno Guardini, Luca Dall'Osto, Roberto Bassi   +8 more
wiley   +1 more source

TESS Asteroseismic Masses and Radii of Red Giants with (and without) Planets

The Astrophysical Journal
We present a study of asteroseismically derived surface gravities, masses, and radii of a sample of red giant stars both with and without confirmed planetary companions using TESS photometric light curves. These red giants were drawn from radial velocity
Myles Pope, Joleen K. Carlberg, Jeff Valenti, Doug Branton   +3 more
doaj   +1 more source

A Cre‐dependent lentiviral vector for neuron subtype‐specific expression of large proteins

FEBS Letters, EarlyView.
We designed a versatile and modular lentivector comprising a Cre‐dependent switch and self‐cleaving 2A peptide and tested it for co‐expression of GFP and a 2.8 kb gene of interest (GOI) in mouse cortical parvalbumin (PV+) interneurons and midbrain dopamine (TH+) neurons.
Weixuan Xue, Sandrine Picaud, Régine Hepp, Stéphanie Pons, Uwe Maskos, Bertrand Lambolez, Ludovic Tricoire   +6 more
wiley   +1 more source