Results 81 to 90 of about 992,258 (306)

The Stellar Abundances for Galactic Archaeology (SAGA) data base - II. Implications for mixing and nucleosynthesis in extremely metal-poor stars and chemical enrichment of the Galaxy [PDF]

, 2010
We discuss the characteristics of known extremely metal-poor (EMP) stars in the Galaxy using the Stellar Abundances for Galactic Archaeology (SAGA) database (Suda et al. 2008, PASJ, 60, 1159).
T. Suda, S. Yamada, Y. Katsuta, Yutaka Komiya, C. Ishizuka, W. Aoki, M. Fujimoto   +6 more
semanticscholar   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 more
wiley   +1 more source

ABUNDANCES, STELLAR PARAMETERS, AND SPECTRA FROM THE SDSS-III/APOGEE SURVEY [PDF]

, 2015
The SDSS-III/Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey operated from 2011–2014 using the APOGEE spectrograph, which collects high-resolution (R ∼ 22,500), near-IR (1.51–1.70 μm) spectra with a multiplexing (300 fiber-fed ...
J. Holtzman, M. Shetrone, Jennifer A. Johnson, C. Prieto, F. Anders, B. Andrews, T. Beers, D. Bizyaev, M. Blanton, J. Bovy, R. Carrera, S. Chojnowski, K. Cunha, D. Eisenstein, D. Feuillet, P. Frinchaboy, J. Galbraith-Frew, A. G. Garc'ia P'erez, D. A. García-Hernández, S. Hasselquist, M. Hayden, F. Hearty, I. Ivans, S. Majewski, S. Martell, S. Mészáros, D. Muna, D. Nidever, D. Nguyen, R. W. O'Connell, K. Pan, M. Pinsonneault, A. Robin, R. Schiavon, N. Shane, J. Sobeck, V. Smith, N. Troup, D. Weinberg, J. Wilson, W. M. Wood-Vasey, O. Zamora, G. Zasowski   +42 more
semanticscholar   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source

High-precision abundances of elements in solar twin stars - Trends with stellar age and elemental condensation temperature [PDF]

, 2015
Context. High-precision determinations of abundances of elements in the atmospheres of the Sun and solar twin stars indicate that the Sun has an unusually low ratio between refractory and volatile elements.
P. Nissen
semanticscholar   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Barium Abundances from the LAMOST Medium-Resolution Survey Stellar Spectra

The Astrophysical Journal Supplement Series
Based on a template-matching method, we estimate the barium (Ba) abundances for stellar spectra from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Medium-Resolution Spectroscopic Survey (MRS).
Tian-Yi Chen, Jian-Rong Shi, Hong-Liang Yan, Timothy C. Beers, Chun-Qian Li, Ming-Yi Ding, Xiao-Jin Xie, Liu Shuai, Zeming Zhou, Yao-Jia Tang   +9 more
doaj   +1 more source

Cosmic abundances: The impact of stellar duplicity

, 2004
The mass-transfer scenario links chemical peculiarities with stellar duplicity for an increasing number of stellar classes (classical and dwarf barium stars, subgiant and giant CH stars, S stars without technetium, yellow symbiotic stars, WIRRING stars, Abell-35-like nuclei of planetary nebulae...).
Jorissen, Alain, Van Eck, Sophie
openaire   +3 more sources

Limitations of Stellar Abundance Determinations [PDF]

Symposium - International Astronomical Union, 1991
The information content of (photospheric) stellar spectra and the accuracy of abundance determinations are discussed. Besides the physical properties of the line spectra, the spectral resolution, the signal-to-noise ratio, but also the incompleteness of the knowledge of the contributing blends limit the abundance information.
openaire   +1 more source

Stellar abundances tracing the formation of the Galactic Bulge [PDF]

Proceedings of the International Astronomical Union, 2008
AbstractThe metallicity distribution and abundance ratios of the Galactic bulge are reviewed. Issues raised by different groups in recent work, in particular the high metallicity end, a comparison between the oxygen abundances derived from different indicators, the [OI] 630nm and IR OH lines, and the issue of measuring giants vs. dwarfs, are discussed.
Barbuy, Beatriz, Zoccali, Manuela, Ortolani, Sergio, Hill, Vanessa, Renzini, Alvio, Meléndez, Jorge, Gómez, Anita, Asplund, Martin, Minniti, Dante, Bica, Eduardo, Alves-Brito, Alan   +10 more
openaire   +3 more sources