Results 101 to 110 of about 3,556 (301)

Solar and stellar photospheric abundances

Living Reviews in Solar Physics, 2016
The determination of photospheric abundances in late-type stars from spectroscopic observations is a well-established field, built on solid theoretical foundations.
Carlos Allende Prieto
doaj   +1 more source

ARTEMIS emulator: exploring the effect of cosmology and galaxy formation physics on Milky Way-mass haloes and their satellites

Monthly Notices of the Royal Astronomical Society
ABSTRACT We present the new ARTEMIS emulator suite of high-resolution (baryon mass of 2.23 × 104h−1 M⊙) zoom-in simulations of Milky Way-mass systems. Here, three haloes from the original ARTEMIS sample have been rerun multiple times, systematically varying parameters for the stellar feedback model, the density threshold for star ...
Shaun T Brown, Azadeh Fattahi, Ian G McCarthy, Andreea S Font, Kyle A Oman, Alexander H Riley   +5 more
openaire   +2 more sources

Electroacupuncture Improves the Learning and Memory by Modulating Hippocampal Glucose Metabolism through IGF1/IGF1R Signaling in Alzheimer's Disease

Advanced Science, EarlyView.
Electroacupuncture (EA) ameliorates learning and memory function in 5×FAD mice by regulating the brain glucose metabolic network. This neuroprotective effect is closely related to enhancing neuronal energy utilization via the IGF1/IGF1R signaling pathway.
Shengxiang Liang, Qingqing Zhang, Xiuxiu Wang, Lixin Peng, Xinru Ji, Jiawei Wang, Yusi Zhang, Jiayang Huang, Junchao Yang, Shiqi Zhan, Yiping Xiao, Weilin Liu, Lidian Chen   +12 more
wiley   +1 more source

Stellar Models are Reliable at Low Metallicity: An Asteroseismic Age for the Ancient Very Metal-poor Star KIC 8144907

The Astrophysical Journal
Very-metal-poor stars ([Fe/H] < −2) are important laboratories for testing stellar models and reconstructing the formation history of our galaxy. Asteroseismology is a powerful tool to probe stellar interiors and measure ages, but few asteroseismic ...
Daniel Huber, Ditte Slumstrup, Marc Hon, Yaguang Li, Victor Aguirre Børsen-Koch, Timothy R. Bedding, Meridith Joyce, J. M. Joel Ong, Aldo Serenelli, Dennis Stello, Travis Berger, Samuel K. Grunblatt, Michael Greklek-McKeon, Teruyuki Hirano, Evan N. Kirby, Marc H. Pinsonneault, Arthur Alencastro Puls, Joel Zinn   +17 more
doaj   +1 more source

Where do the highest energy CR's come from? and How does the Milky Way affect their arrival directions?

EPJ Web of Conferences, 2013
A “grand magnetic design” for the Milky Way disk clearly emerges within ~1.5 kpc of the Galactic mid-plane near the Sun [1], and reveals a pitch angle of −5.5°. directed inward from the Solar tangential.
Kronberg Philipp
doaj   +1 more source

Adipocyte‐Derived Leptolin Enhances Energy Expenditure and Prevents Obesity

Advanced Science, EarlyView.
We identified a novel adipokine, which we named leptolin. In humans, leptolin levels in white adipose tissue were positively correlated with exercise and negatively associated with body mass index. We observed elevated leptolin in serum from athletes and lower leptolin in serum from obese individuals.
Jiarui Liu, Bingwei Wang, Zhijie Su, Xiaoxv Han, Miao He, Yun Zhao, Yujia Hou, Daotong Li, Weiguang Zhang, Lihua Qin, Ke Wang, Yanchun Li, Yi Yan, Siwang Yu, Xiaoshuai Huang, Tairan Yuwen, Jianyuan Luo, Ruimao Zheng   +17 more
wiley   +1 more source

Mapping the Milky Way, from the Inside Out, in Color

Presentation Date: Friday, March 15, 2019 - Location: Barnstable High School, Barnstable, MA - Abstract: A presentation to a crowd of Barnstable High "AstroJunkies," about how we use physics, statistics, and visualizations to turn information from ...
Goodman, Alyssa
core   +2 more sources

The Legacy of the First Galaxies: Exploring Ancient Stars in the Milky Way

, 2023
In the first several hundred million years after the Big Bang, the first stars and galaxies transformed the Universe. These ancient systems launched the creation of every galaxy we see today, including the Milky Way.
Brauer, Kaley
core  

Enhanced Glycolysis‐Driven Histone H3K18 Lactylation Regulates Epileptogenesis by Modulating the E3 Ubiquitin Ligase COP1

Advanced Science, EarlyView.
Neuronal PKM2‐driven glycolysis generates excess lactate that triggers histone H3K18 lactylation (H3K18la), establishing a pathogenic metabolic‐epigenetic axis in epilepsy. Elevated H3K18la enriches the Cop1 promoter, transcriptionally upregulating the E3 ubiquitin ligase COP1, which subsequently drives proteasomal degradation of GABAARβ2 and impairs ...
Yuan Meng, Yanlin Guo, Liumi Jiang, Jing Luo, Yan Liu, Ziwei Yuan, Pingyang Ke, Ran Duan, Fei Xiao   +8 more
wiley   +1 more source

Modeling the Milky Way wind: Supernova-driven outflows accelerate HI clouds near the Galactic center

Astronomy & Astrophysics
Multiwavelength observations, from radio to X-rays, have revealed the presence of multiphase high-velocity gas near the center of the Milky Way likely associated with powerful galactic outflows. This region offers a unique laboratory to study the physics
Afruni Andrea, Di Teodoro Enrico M., Armillotta Lucia, Lynn Callum A., McClure-Griffiths Naomi M.   +4 more
doaj   +1 more source