Results 61 to 70 of about 173,796,379 (301)
The Astrophysical Journal Supplement SeriesLarge catalogs of blue horizontal-branch (BHB) stars are essential for studying substructures and kinematics of the Galactic halo. And accurate determination of atmospheric parameters for BHB stars provides insight into stellar evolution.
Xiao-Long Wang +6 more
doaj +1 more source
Degradation mechanism of the von Willebrand factor A2 domain by nattokinase
FEBS Letters, EarlyView.Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto +3 more
wiley +1 more source
B stars in open clusters: fundamental parameters [PDF]
, 2019 We use the BCD spectrophotometric classification system to derive fundamental parameters of B stars in NGC 2439, NGC 3766 and NGC 6087. We are able to perform a complete study of each open cluster by deriving spectral classification of its members ...
Arias, María Laura +3 more
core
Half a Million M Dwarf Stars Characterized Using Domain-adapted Spectral Analysis
The Astrophysical Journal Supplement SeriesWe 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 +7 more
doaj +1 more source
Fundamental parameters of Ap-star HD 108662
, 2020 8 pages, 5 figures, accepted for publication in INASAN Science ...
Romanovskaya, A. M. +2 more
openaire +2 more sources
FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
The Astrophysical JournalWe present a new statistical technique that utilizes the synergy of precision astrometry and time series photometry from modern space missions to obtain reliable physical parameters of pulsating white dwarf stars.
Keaton J. Bell, Agnès Bischoff-Kim
doaj +1 more source
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
Discovery of an Extremely r-process-enhanced Thin-disk Star with [Eu/H] = +0.78
The Astrophysical Journal LettersHighly 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 +11 more
doaj +1 more source
Using limb darkening to measure fundamental parameters of stars [PDF]
Astronomy & Astrophysics, 2012 Context. Limb darkening is an important tool for understanding stellar atmospheres, but most observations measuring limb darkening assume various parameterizations that yield no significant information about the structure of stellar atmospheres. Aims. We use a specific limb-darkening relation to study how the best-fit coefficients relate to fundamental
Neilson, Hilding R., Lester, John B.
openaire +2 more sources