Results 81 to 90 of about 602,274 (295)

Oxygen and silicon abundances in Cygnus OB2: Chemical homogeneity in a sample of OB slow rotators

, 2018
Cygnus OB2 is a rich OB association in the Galaxy which has experienced intense star formation in the last 20-25 Myr. Its stellar population shows a correlation between age and Galactic longitude. Exploring the chemical composition of its stellar content
Berlanas, S. R., Cerviño, M., Comerón, F., Herrero, A., Pasquali, A., Simón-Díaz, S.   +5 more
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

The Deep Water Abundance on Jupiter: New Constraints from Thermochemical Kinetics and Diffusion Modeling

, 2010
We have developed a one-dimensional thermochemical kinetics and diffusion model for Jupiter's atmosphere that accurately describes the transition from the thermochemical regime in the deep troposphere (where chemical equilibrium is established) to the ...
Alibert, Allen, Arai, Aronowitz, Atreya, Atreya, Bar-Nun, Bar-Nun, Barshay, Beer, Beer, Bjoraker, Bodenheimer, Bézard, Carvalho, Channon Visscher, Chen, Cooper, da Silva, De Avillez Pereira, de Pater, Dean, Dean, Drossart, Fegley, Fegley, Fegley, Fegley, Fernando, Flasar, Gautier, Gautier, Gierasch, Gladstone, Griffith, Hanel, Hersant, Hidaka, Hoyermann, Irdam, Janssen, Jasper, Jodkowski, Julianne I. Moses, Korobeinichev, Krasnoperov, Kunde, Larson, Larson, Lellouch, Lellouch, Lendvay, Lewis, Lissauer, Lodders, Lodders, Lodders, Lodders, Lunine, Lunine, Mahaffy, Miller, Mizuno, Moses, Moses, Moses, Moses, Moses, Mousis, Noll, Noll, Norton, Norton, Owen, Owen, Page, Pearl, Pollack, Pollack, Prinn, Ragent, Roos-Serote, Roos-Serote, Sarah A. Saslow, Seiff, Smith, Spindler, Sromovsky, Stevenson, Stone, Taylor, Tsang, Visscher, von Zahn, Wong, Xia, Yung   +96 more
core   +1 more source

He abundances in disc galaxies. I. Predictions from cosmological chemodynamical simulations [PDF]

, 2019
Accepted for publication in A&AWe investigate how the stellar and gas-phase He abundances evolve as a function of time within simulated star-forming disc galaxies with different star formation histories.
Kobayashi, Chiaki, Mackereth, J. Ted, Miglio, Andrea, Montalban, Josefina, Vincenzo, Fiorenzo   +4 more
core   +5 more sources

Chemical enrichment of isolated relic galaxy Mrk1216

Publications of the Astronomical Society of Australia
Abstract In this study, we investigate the chemical enrichment and structural evolution of the isolated elliptical relic galaxy Mrk1216 through X-ray observations. As a red-nugget relic, Mrk1216 provides a rare window into the early Universe, owing to its minimal interaction with the surrounding environment. Using data from the XMM-Newton telescope,
M. Kıyami Erdim, Emine Gülmez, Murat Hüdaverdi   +2 more
openaire   +2 more sources

Chemical Enrichment of the First Binaries [PDF]

Proceedings of the International Astronomical Union, 2015
AbstractRecent studies of Population III (Pop III) star formation suggest that the primordial star-forming clouds can fragment to form binary or multiple stellar systems inside dark matter minihalos. Here, we briefly present the chemical enrichment of the Pop III binary scenarios.
openaire   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Observations of nitrogen isotope fractionation in deeply embedded protostars [PDF]

, 2014
(Abridged) The terrestrial planets, comets, and meteorites are significantly enriched in 15N compared to the Sun and Jupiter. While the solar and jovian nitrogen isotope ratio is believed to represent the composition of the protosolar nebula, a still ...
Bisschop, S. E., Bizzarro, M., Jorgensen, J. K., Wampfler, S. F.   +3 more
core   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

Chemical Abundance Gradients in the Star-Forming Ring Galaxies

, 1999
Ring waves of star formation, propagating outwardly in the galactic disks, leave chemical abundance gradients in their wakes. We show that the relative [Fe/O] abundance gradients in ring galaxies can be used as a tool for determining the role of the SNIa
Eduard Vorobyov, Fosbury R. A. E., Gail H.-P., Gibson B. K., Ishimaru Y., Koppen J., Morton D. C., Shore S. N., Tsujimoto T., Vladimir Korchagin, Woosley S. E., Y. D. Mayya   +11 more
core   +1 more source