Results 101 to 110 of about 59,640 (247)

Low‐dose X‐ray radiation induces an adaptive response: A potential countermeasure to galactic cosmic radiation exposure

Experimental Physiology, EarlyView.
Abstract Space exploration involves many dangers including galactic cosmic radiation (GCR). This class of radiation includes high‐energy protons and heavy ionizing ions. NASA has defined GCR as a carcinogenic risk for long‐duration space missions. To date, no clear strategy has been developed to counter chronic GCR exposure.
Siena Edwards, Jessica Adams, Anastasia Tchernikov, John G. Edwards   +3 more
wiley   +1 more source

The Apache Point Observatory Extra-galactic Evolution Experiment (APOeGEE): Chemical Abundance Trends for Seven Dwarf Spheroidal Galaxies in the APOGEE Survey

The Astrophysical Journal
In addition to comprehensive surveys of the Milky Way (MW) bulge, disk, and halo, the Apache Point Galactic Evolution Experiment (APOGEE) project observed seven dwarf spheroidal satellites (dSphs) of the MW: Carina, Sextans, Sculptor, Draco, Ursa Minor ...
Matthew Shetrone, Rachael L. Beaton, Christian R. Hayes, Sten Hasselquist, Joshua D. Simon, Jon A. Holtzman, Katia Cunha, Steven R. Majewski, Jennifer Sobeck, Ricardo Schiavon, Thomas Masseron, Verne V. Smith, David L. Nidever   +12 more
doaj   +1 more source

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

Experimental 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

Low [O/Fe] Ratio in a Luminous Galaxy at the Early Cosmic Epoch (z > 10): Signature of Short Delay Time or Bright Hypernovae/Pair-instability Supernovae?

The Astrophysical Journal
We present an [O/Fe] ratio of a luminous galaxy GN-z11 at z = 10.60 derived with the deep public JWST/NIRSpec data. We fit the medium-resolution grating (G140M, G235M, and G395M) data with the model spectra consisting of BPASS-stellar and Cloudy -nebular
Minami Nakane, Masami Ouchi, Kimihiko Nakajima, Yuichi Harikane, Nozomu Tominaga, Koh Takahashi, Daichi Kashino, Hiroto Yanagisawa, Kuria Watanabe, Ken’ichi Nomoto, Yuki Isobe, Moka Nishigaki, Miho N. Ishigaki, Yoshiaki Ono, Yui Takeda   +14 more
doaj   +1 more source

Advances in cardiac devices and bioelectronics augmented with artificial intelligence

The 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, Eric Rytkin, Andrei Alexandru Mircea, Igor R. Efimov   +3 more
wiley   +1 more source

Fe Abundances of Early Galaxies at z = 9–12 Derived with Deep JWST Spectra

The Astrophysical Journal
We derive Fe abundance ratios of seven galaxies at z = 9–12 with −22 < M _UV  
Minami Nakane, Masami Ouchi, Kimihiko Nakajima, Yoshiaki Ono, Yuichi Harikane, Yuki Isobe, Ken’ichi Nomoto, Miho N. Ishigaki, Hiroto Yanagisawa, Daichi Kashino, Nozomu Tominaga, Koh Takahashi, Moka Nishigaki, Yui Takeda, Kuria Watanabe   +14 more
doaj   +1 more source

THE COOL GIANT STARS AND CHEMICAL EVOLUTION OF GALAXY

Odessa Astronomical Publications, 2017
The fundamental characteristics and abundances of cool giant stars is discussed. The possible evolution of nuclides in process evolution of Galaxy was very shortly described.
N. S. Komarov, T. V. Shevchuk
doaj   +1 more source

Chemical Evolution of the Galaxy

, 1994
ten pages in CUPstyle LaTex: extract at the end the corresponding confguid ...
openaire   +2 more sources

pop-cosmos: A Comprehensive Picture of the Galaxy Population from COSMOS Data

The Astrophysical Journal Supplement Series
We present pop-cosmos : a comprehensive model characterizing the galaxy population, calibrated to 140,938 ( r < 25 selected) galaxies from the Cosmic Evolution Survey (COSMOS) with photometry in 26 bands from the ultraviolet to the infrared. We construct
Justin Alsing, Stephen Thorp, Sinan Deger, Hiranya V. Peiris, Boris Leistedt, Daniel Mortlock, Joel Leja   +6 more
doaj   +1 more source

Chemical evolution of galaxies and galaxy formation mechanisms [PDF]

Proceedings of Baryons in Dark Matter Halos — PoS(BDMH2004), 2004
I will describe the results if models for the chemical evolution of galaxies of different morphological type (ellipticals, spirals and irregulars), and compare them with observations in order to impose constraints on the mechianisms of formation and evolution of galaxies.
openaire   +1 more source