Results 71 to 80 of about 52,001 (350)
The Galactic Thick Disk Stellar Abundances
The Astronomical Journal, 2000 We present first results from a program to measure the chemical abundances of a large (N>30) sample of thick disk stars with the principal goal of investigating the formation history of the Galactic thick disk. Our analysis confirms previous studies of O and Mg in the thick disk stars which reported enhancements in excess of the thin disk population.
Prochaska, Jason X. +4 more
openaire +3 more sources
Advanced Science, EarlyView.This study reveals that dietary stachyose enriches Butyricimonas virosa, effectively attenuating metabolic dysfunction‐associated steatotic liver disease (MASLD). Mechanistically, B. virosa enhances gut thiamine monophosphate synthesis, which elevates hepatic thiamine pyrophosphate levels.
Ningning He +17 more
wiley +1 more source
Abundances of Chemical Elements in Open Star Clusters as Indicators of their Nature
Open Astronomy, 2015 Applying a compilled catalog, we find that the relative abundances of α-elements in open clusters and in field stars of the thin disk of the Galaxy show different dependencies on metallicity, age and parameters of their Galactic orbits.
Marsakov V. A. +3 more
doaj +1 more source
CNO abundances in the Galactic bulge [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractThe carbon, nitrogen, and oxygen abundances and trends in the bulge are discussed in the context of our recent analysis of these elements in an on-going project based on near-IR spectra (Rydeet al. 2009). We obtained these using the CRIRES spectrometer on the VLT. The formation and evolution of the Milky Way bulge can be constrained by studying
openaire +2 more sources
Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides
Advanced Science, EarlyView.This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das +13 more
wiley +1 more source
The galactic abundance gradient [PDF]
Monthly Notices of the Royal Astronomical Society, 1983 P. A. Shaver +4 more
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Determination of Abundances of Chemical Elements in Open Star Clusters of the Galaxy
Open Astronomy, 2016 Spectroscopic determinations of the relative abundances of chemical elements produced in different nuclear-synthesis processes, [el/Fe], are collected for 90 open star clusters of the Galaxy using data from 109 papers published between 1991 and 2015 ...
Gozha M. L. +2 more
doaj +1 more source
Advanced Science, EarlyView.A heterointerface‐functionalized Schottky photodiode (HF‐SPD) is developed to explore the photoelectric capabilities of low‐temperature oxide semiconductors. Besides the remarkable UV detection capability, the bias‐tunable photo response endows HF‐SPD with the unique wavelength selectivity.
Yuyang Cai +13 more
wiley +1 more source
Detection of the Actinide Th in an r-process-enhanced Star with Accretion Origin
The Astrophysical JournalThe thorium and six second-peak r -process element (56 ≤ Z ≤ 72) abundances are determined for the α -poor star LAMOST J1124+4535 based on a high-resolution spectrum obtained with the High Dispersion Spectrograph on the Subaru Telescope. The age of J1124+
Qianfan Xing +6 more
doaj +1 more source
MOLYBDENUM AND RUTHENIUM ABUNDANCES IN COOL STARS OF THE GALACTIC DISC
Odessa Astronomical Publications, 2017 We revise the molybdenum and ruthenium abundances in FGK stars with metallicities ranging from −1.0 < [Fe/H] < +0.3. The observed stars belong to the substructures of the Galaxy. The observations were conducted using the 1.93 m telescope at
T. I. Gorbaneva, T. V. Mishenina
doaj +1 more source