Results 101 to 110 of about 284,450 (301)

Euclid preparation

open access: yesAstronomy & Astrophysics
The Cosmic Dawn Survey pre-launch catalogues cover an effective 10.13 deg2 area with uniform deep Spitzer/IRAC data (m ∼ 25 mag, 5σ), the largest area covered to these depths at IR wavelengths.
Zalesky L.   +305 more
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Evolution of the Near-Infrared Tully-Fisher Relation: Constraints on the Relationship Between the Stellar and Total Masses of Disk Galaxies since z=1

open access: yes, 2005
Using a combination of Keck spectroscopy and near-infrared imaging, we investigate the K-band and stellar mass Tully-Fisher relation for 101 disk galaxies at 0.2 < z < 1.2, with the goal of placing the first observational constraints on the assembly ...
Andrew C. Phillips   +9 more
core   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Stellar Mass Segregation in Dark Matter Halos

open access: yesThe Astrophysical Journal
We study the effect of stellar mass segregation driven by collisional relaxation within the potential well of a smooth dark matter halo. This effect is of particular relevance for old stellar systems with short crossing times, where small collisional ...
Raphaël Errani   +2 more
doaj   +1 more source

Intermediate-mass black hole binary evolution in nuclear star clusters: The effect of the stellar-mass black hole population

open access: yesAstronomy & Astrophysics
Aims. In this study, we investigate the dynamics of intermediate-mass black hole (IMBH) binaries within nuclear star clusters (NSCs) that contain a population of stellar-mass black holes (BHs).
Khan Fazeel Mahmood   +6 more
doaj   +1 more source

Stellar Masses and Radii as Constraints on Stellar Models [PDF]

open access: yesInternational Astronomical Union Colloquium, 1993
AbstractThe current status of empirical data on stellar masses and radii of sufficient accuracy to give constraints on stellar models is reviewed. Results from the best-studied eclipsing binaries can already trace the main-sequence evolution of 1-10 M⊙ stars in considerable detail and will be even more useful when supplemented by chemical abundance ...
openaire   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Tracing Galaxy Evolution in the Nearby Universe: The Role of Dark Matter

open access: yesThe Astronomical Journal
Using a sample of ∼126,000 late-type galaxies (LTGs) from the Sloan Digital Sky Survey, we analyzed stellar mass as a function of the dynamical mass. Stellar masses are estimated using eight stellar population synthesis (SPS) models with constant initial
A. Nigoche-Netro   +8 more
doaj   +1 more source

A supra-massive population of stellar-mass black holes in the globular cluster Palomar 5. [PDF]

open access: yesNat Astron, 2021
Gieles M   +4 more
europepmc   +1 more source

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