Results 81 to 90 of about 214,380 (335)

Panchromatic fits to the Globular Cluster NGC 6366 [PDF]

open access: yes, 2013
We present panchromatic isochrone fits to the color magnitude data of the globular cluster NGC 6366, based on HST ACS/WFC and SOAR photometric data. Before performing the isochrone fits, we corrected the photometric data for differential reddening and ...
Bonatto, C.   +2 more
core   +1 more source

Introduction to stellar evolution

open access: yesJournal of Physics: Conference Series, 2016
This contribution is meant as a first brief introduction to stellar physics. First I shortly describe the main physical processes active in stellar structures then I summarize the most important features during the stellar life-cycle.
openaire   +2 more sources

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

open access: yesFEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke   +2 more
wiley   +1 more source

Uncertainties in AGB Evolution and Nucleosynthesis

open access: yes, 2016
We summarise the evolution and nucleosynthesis in AGB and Super-AGB stars. We then examine the major sources of uncertainty, especially mass-loss.Comment: 8 pages, no figures.
Karakas, Amanda, Lattanzio, John
core   +1 more source

Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation

open access: yesFEBS Letters, EarlyView.
Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
wiley   +1 more source

A Semi-analytical Model for Stellar Evolution in AGN Disks

open access: yesThe Astrophysical Journal
Disks of gas accreting onto supermassive black holes may host numerous stellar-mass objects, formed within the disk or captured from a nuclear star cluster.
Alexander J. Dittmann, Matteo Cantiello
doaj   +1 more source

Lithium abundance evolution in open clusters: Hyades, NGC752, and M67

open access: yes, 2013
Mixing mechanisms bring the Li from the base of the convective zone to deeper and warmer layers where it is destroyed. These mechanisms are investigated by comparing observations of Li abundances in stellar atmospheres to models of stellar evolution ...
Castro, Matthieu   +2 more
core   +1 more source

Autophagy in cancer and protein conformational disorders

open access: yesFEBS Letters, EarlyView.
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley   +1 more source

Boron Abundances in Early B Dwarfs of the Galactic Open Cluster NGC 3293

open access: yesThe Astrophysical Journal
New boron abundances or upper limits have been determined for eight early B stars in the young Galactic open cluster NGC 3293, using UV spectra obtained by the Hubble Space Telescope Cosmic Origins Spectrograph.
Charles R. Proffitt   +6 more
doaj   +1 more source

The Mass-Metallicity and Luminosity-Metallicity Relation from DEEP2 at z ~ 0.8

open access: yes, 2011
We present the mass-metallicity (MZ) and luminosity-metallicity (LZ) relations at z ~ 0.8 from ~1350 galaxies in the Deep Extragalactic Evolutionary Probe 2 (DEEP2) survey.
Abazajian   +56 more
core   +1 more source

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