Results 151 to 160 of about 948,048 (332)

Advances in cardiac devices and bioelectronics augmented with artificial intelligence

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Interfaces between the human heart, diagnostic bioelectronics, artificial intelligence, and clinical care. From left to right: Human heart and biosensor interface; representative waveforms of common diagnostic bioelectronic sensing modalities.
Charles Stark   +3 more
wiley   +1 more source

Metals in Star-forming Galaxies with KCWI. I. Methodology and First Results on the Abundances of Iron, Magnesium, and Oxygen

open access: yesThe Astrophysical Journal
Understanding the chemical enrichment of different elements is crucial to gaining a complete picture of galaxy chemical evolution. In this study, we present a new sample of 46 low-redshift, low-mass star-forming galaxies at M _* ∼ 10 ^8−10 M _⊙ along ...
Zhuyun Zhuang   +8 more
doaj   +1 more source

The fate of heavy elements in dwarf galaxies - the role of mass and geometry

open access: yes, 2013
Energetic feedback from Supernovae and stellar winds can drive galactic winds. Dwarf galaxies, due to their shallower potential wells, are assumed to be more vulnerable to this phenomenon.
Hensler, G., Recchi, S.
core   +1 more source

Abundances and gradients in nearby galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2016
AbstractThe study of chemical abundance gradients can provide essential information on the evolution of disk galaxies. Here I briefly review our current observational knowledge concerning the abundances of the ionized gas (H ii regions and planetary nebulae) in nearby galaxies, and how they inform us about the time evolution of metallicity gradients.
openaire   +1 more source

Clinically Inspired Multimodal Treatment Using Induced Neural Stem Cells‐Derived Exosomes Promotes Recovery of Traumatic Brain Injury through Microglial Modulation

open access: yesAdvanced Science, Volume 12, Issue 46, December 11, 2025.
This study explores the therapeutic potential of iNSC‐Exo via local and systemic delivery in TBI mice. It is found that iNSC‐Exo enhances NRXN signaling through Microglia_Nrg3 and Microglia_Rarb, effectively promoting functional and neurological recovery, suggesting a new therapeutic strategy for TBI. Abstract Traumatic brain injury (TBI) poses serious
Jiaojiao Li   +9 more
wiley   +1 more source

Under Pressure: Decoding the Effect of High Densities on Derived Nebular Properties

open access: yesThe Astrophysical Journal
Recent JWST observations have uncovered a population of compact, high-redshift ( z  > 6) galaxies exhibiting extreme nebular conditions and enhanced nitrogen abundances that challenge standard chemical evolution paradigms.
Zorayda Martinez   +8 more
doaj   +1 more source

The imprint of bursty star formation on alpha-element abundance patterns in Milky Way-like galaxies [PDF]

open access: green, 2023
Hanna Parul   +7 more
openalex   +1 more source

Abundance gradients and galaxy formation

open access: yesThe Astrophysical Journal, 1991
A three-dimensional collisionless code is used to simulate the formation of elliptical galaxies with a time scale for star formation comparable to the collapse time. A one-zone chemical evolution scheme is used to compute the evolution of the abundances of several chemical elements.
M. Stiavelli, F. Matteucci
openaire   +1 more source

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