Results 121 to 130 of about 2,970 (256)

Cerebrovascular pulsatility following long duration spaceflight is associated with changes in pulse pressure and carotid artery stiffness

open access: yesExperimental Physiology, EarlyView.
Abstract Central artery stiffening increases the haemodynamic pulsations transmitted downstream towards target organs, including the brain. While recent evidence suggests that long duration spaceflight is associated with reduced common carotid artery (CCA) distensibility, cerebrovascular pulsatility has not been extensively characterized in astronauts.
Roxanne Fournier   +5 more
wiley   +1 more source

Intrinsic and Environmental Effects on the Distribution of Star Formation in TNG100 Galaxies

open access: yesThe Astrophysical Journal
We present radial profiles of luminosity-weighted age (age _L ) and ΔΣ _SFR for various populations of high- and low-mass central and satellite galaxies in the TNG100 cosmological simulation.
Bryanne McDonough   +2 more
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

A Census of Dwarf Galaxy Satellites around LMC-mass Galaxy NGC 2403

open access: yesThe Astrophysical Journal
We present the first comprehensive census of the satellite population around a Large Magellanic Cloud stellar-mass galaxy, as part of the Magellanic Analog Dwarf Companions and Stellar Halos (MADCASH) survey. We have surveyed NGC 2403 ( D = 3.0 Mpc) with
Jeffrey L. Carlin   +13 more
doaj   +1 more source

Micro‐Scale Arrays Fabricated on Parafilm and Polymethyl Methacrylate Towards Differential Colorimetric Analysis of Amines via Shape Transformation of Ag Nanoprisms

open access: yesAnalytical Science Advances, Volume 6, Issue 2, December 2025.
ABSTRACT A novel micro‐array was developed to a colorimetric detection of some amines, including histamine (HT), cadaverine (CAD), 1,4‐diaminobutane (putrescine), 2‐phenylethylamine (2‐PEA), spermidine (SD) and ethylenediamine (EA) using silver nanoparticle (silver nanoprisms [AgNPrs]) as optical nanoprobe.
Farnaz Bahavarnia   +3 more
wiley   +1 more source

Ursa Major III/UNIONS 1: The Darkest Galaxy Ever Discovered?

open access: yesThe Astrophysical Journal
The recently discovered stellar system Ursa Major III/UNIONS 1 (UMa3/U1) is the faintest known Milky Way satellite to date. With a stellar mass of ${16}_{-5}^{+6}\,{M}_{\odot }$ and a half-light radius of 3 ± 1 pc, it is either the darkest galaxy ever ...
Raphaël Errani   +3 more
doaj   +1 more source

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