Results 131 to 140 of about 6,178,117 (397)

Stellar Populations in the Magellanic Clouds [PDF]

Symposium - International Astronomical Union, 1995
There seems to be no strong evidence that the young globular clusters in the MC have metallicities differing significantly from the metallicities of MC field stars of the same age. The old globular clusters in the LMC are of the same age as, or slightly younger than, those in the outer halo of our Galaxy. It is suggested that the increase in the SFR in
openaire   +3 more sources

MODELING TRACERS OF YOUNG STELLAR POPULATION AGE IN STAR-FORMING GALAXIES [PDF]

, 2013
The young stellar population of a star-forming galaxy is the primary engine driving its radiative properties. As a result, the age of a galaxy's youngest generation of stars is critical for a detailed understanding of its star formation history, stellar ...
E. Levesque, C. Leitherer
semanticscholar   +1 more source

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

FEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

The stochastic nature of stellar population modelling

, 2013
Since the early 1970s, stellar population modelling has been one of the basic tools for understanding the physics of unresolved systems from observation of their integrated light.
Cerviño, Miguel
core   +1 more source

Resolved SPLASH Chemodynamics in Andromeda’s PHAT Stellar Halo and Disk: On the Nature of the Inner Halo along the Major Axis

The Astronomical Journal, 2023
Stellar kinematics and metallicity are key to exploring formation scenarios for galactic disks and halos. In this work, we characterized the relationship between kinematics and photometric metallicity along the line of sight to M31's disk.
Ivanna Escala, Amanda C. N. Quirk, Puragra Guhathakurta, Karoline M. Gilbert, J. Leigh Wojno, Lara Cullinane, Benjamin F. Williams, Julianne Dalcanton   +7 more
doaj   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

FEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Stellar populations of galaxies in the ALHAMBRA survey up to $z \sim 1$. II. Stellar content of quiescent galaxies within the dust-corrected stellar mass$-$colour and the $UVJ$ colour$-$colour diagrams

, 2019
Our aim is to determine the distribution of stellar population parameters (extinction, age, metallicity, and star formation rate) of quiescent galaxies within the rest-frame stellar mass$-$colour and $UVJ$ colour$-$colour diagrams corrected for ...
A. del Olmo, A. Fernández-Soto, A. J. Cenarro, A. López-Comazzi, A. Molino, C. Husillos, C. López-Sanjuan, D. Cristóbal-Hornillos, E. Alfaro, F. J. Castander, F. Prada, I. Ferreras, I. Márquez, I. San Roman, J. A. L. Aguerri, J. Cabrera-Caño, J. Cepa, J. M. Quintana, J. Masegosa, J. Perea, K. Viironen, L. A. Díaz-García, L. Infante, M. Cerviño, M. Moles, M. Pović, N. Benítez, R. M. González Delgado, T. Aparicio-Villegas, T. Broadhurst, V. J. Martínez   +30 more
core   +2 more sources

Spectral Synthesis of Star-forming Galaxies in the Near-Infrared [PDF]

, 2013
The near-infrared spectral region is becoming a very useful wavelength range to detect and quantify the stellar population of galaxies. Models are developing to predict the contribution of TP-AGB stars, that should dominate the NIR spectra of populations
de Souza, Ronaldo, Diniz, Suzi, Martins, Lucimara, Riffel, Rogério, Rodríguez-Ardila, Alberto   +4 more
core   +2 more sources

Starspots and Undetected Binary Stars Have Distinct Signatures in Young Stellar Associations

The Astrophysical Journal
Young stars form in associations, meaning that young stellar associations provide an ideal environment to measure the age of a nominally coeval population.
Kendall Sullivan, Adam L. Kraus
doaj   +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