Results 111 to 120 of about 4,406,721 (399)

Core to Cosmic Edge: SIMBA-C’s New Take on Abundance Profiles in the Intragroup Medium at z = 0

Universe
We employ the simba-c cosmological simulation to study the impact of its upgraded chemical enrichment model (Chem5) on the distribution of metals in the intragroup medium (IGrM).
Aviv Padawer-Blatt, Zhiwei Shao, Renier T. Hough, Douglas Rennehan, Ruxin Barré, Vida Saeedzadeh, Arif Babul, Romeel Davé, Chiaki Kobayashi, Weiguang Cui, François Mernier, Ghassem Gozaliasl   +11 more
doaj   +1 more source

Chemical abundances of two extragalactic young massive clusters [PDF]

, 2017
We use integrated-light spectroscopic observations to measure metallicities and chemical abundances for two extragalactic young massive star clusters (NGC1313-379 and NGC1705-1).
S. Hernandez, S. Larsen, S. Trager, P. Groot   +3 more
semanticscholar   +1 more source

The power of microRNA regulation—insights into immunity and metabolism

FEBS Letters, EarlyView.
MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto, Nicola Manfrini, Stefano Biffo   +2 more
wiley   +1 more source

Chemical Cartography with APOGEE: Two-process Parameters and Residual Abundances for 288,789 Stars from Data Release 17

The Astrophysical Journal
Stellar abundance measurements are subject to systematic errors that induce extra scatter and artificial correlations in elemental abundance patterns. We derive empirical calibration offsets to remove systematic trends with surface gravity $\mathrm{log ...
Tawny Sit, David H. Weinberg, Adam Wheeler, Christian R. Hayes, Sten Hasselquist, Thomas Masseron, Jennifer Sobeck   +6 more
doaj   +1 more source

Chemical abundances in M31 from HII regions

, 2012
We have obtained multi-slit spectroscopic observations from 3700A to 9200A with LRIS at the Keck I telescope for 31 HII regions in the disk of the Andromeda galaxy (M31), spanning a range in galactocentric distance from 3.9 kpc to 16.1 kpc.
A. Zurita, Alloin, Asplund, Baade, Benjamin, Bernard, Blair, Block, Bohlin, Bresolin, Bresolin, Bresolin, Bresolin, Bresolin, Bresolin, Bresolin, Bresolin, Bèland, Corbelli, Davidge, De Robertis, de Vaucouleurs, Dennefeld, Dopita, Edmunds, Edmunds, Esteban, F. Bresolin, Ferguson, Ferguson, Fesen, French, Galarza, Garnett, González-Delgado, Hammer, Hamuy, Howarth, Ibata, Izotov, Kennicutt, Kewley, Kewley, Kudritzki, Kudritzki, Kuzio de Naray, Kwitter, Liu, Lodders, López-Sánchez, Magrini, Mallery, Marcon-Uchida, McCall, McGaugh, Mesa-Delgado, Monet, Nicholls, Oke, Oke, Pagel, Pagel, Patterson, Peimbert, Peimbert, Peimbert, Pellet, Pettini, Pilkington, Pilyugin, Pilyugin, Porter, Pérez-Montero, Pérez-Montero, Renda, Rubin, Sabbadin, Seaton, Shaw, Skillman, Skrutskie, Smartt, Stasińska, Stasińska, Storey, Stupar, Tanaka, Trundle, Unwin, van Dokkum, Venn, Vila Costas, Vila Costas, Vilardell, Vílchez, Williams, Yin, Zaritsky   +97 more
core   +1 more source

Stellar evolution with SMC chemical abundances [PDF]

International Astronomical Union Colloquium, 1981
Evolutionary computations are presented for massive stars between 20 Mo and 100 Mo with chemical abundances holding for the Small Magellanic Cloud, i.e. X = .76 and Z = .003. Mass loss by stellar wind is taken into account during core hydrogen burning.
D. Vanbeveren, P. Hellings
openaire   +2 more sources

miRNA‐29 regulates epidermal and mesenchymal functions in skin repair

FEBS Letters, EarlyView.
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan, Rosa Sanchez‐Alvarez, Chiho Kambara, Poojitha Rajasekar, Yuluang Wang, François Halloy, Jonathan Hall, Hans‐Jürgen Stark, Iris Martin, Petra Boukamp, Svitlana Kurinna   +10 more
wiley   +1 more source

Two-process Model and Residual Abundance Analysis of the Milky Way Massive Satellites

The Astrophysical Journal
The “two-process model” is a promising technique for interpreting stellar chemical abundance data from large-scale surveys (e.g., the Sloan Digital Sky Survey IV/V and the Galactic Archeology with HERMES survey), enabling more quantitative empirical ...
Sten Hasselquist, Christian R. Hayes, Emily J. Griffith, David Weinberg, Tawny Sit, Rachael L. Beaton, Danny Horta   +6 more
doaj   +1 more source

Small-scale chemical abundance analysis in a blue compact dwarf galaxy SBS 1415+437 [PDF]

, 2019
We use integral field spectroscopic (IFS) observations from Gemini Multi-Object Spectrograph-North (GMOS-N) to analyse the ionised gas in the principal star-forming region in the blue compact dwarf galaxy SBS 1415+437. The IFS data enable us to map the weak auroral line [O III] $\lambda$4363 at a spatial scale of $\sim$6.5 pc across a region of $\sim ...
arxiv   +1 more source

The RRc Stars: Chemical Abundances and Envelope Kinematics [PDF]

, 2017
We analyzed series of spectra obtained for 12 stable RRc stars observed with the echelle spectrograph of the du Pont telescope at Las Campanas Observatory and we analyzed the spectra of RRc Blazhko stars discussed by Govea et al.
C. Sneden, G. Preston, M. Chadid, Monika Adamów   +3 more
semanticscholar   +1 more source