Results 91 to 100 of about 5,644 (256)
The Astrophysical JournalWe present a spatially resolved (∼3 pc pixel ^−1 ) analysis of the distribution, kinematics, and excitation of warm H _2 gas in the nuclear starburst region of M83.
Logan H. Jones +13 more
doaj +1 more source
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 +3 more
wiley +1 more source
Chemical evolution of the Galaxy at the initial rapid-collapse phase
, 1978 The dynamical and chemical evolution of the Galaxy are studied simultaneously in order to search for correlation between the phase of early collapse and the amount of metals produced by nucleosynthesis in newly formed stars.
CAIMMI, ROBERTO
core +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
The Chemical Evolution of Galaxies by Successive Starbursts
, 1999 We propose an evolutionary scenario by successive bursts of star formation to reproduce the chemical properties of massive nearby Starburst Nucleus Galaxies (SBNGs). The N/O abundance ratios in SBNGs are 0.2 dex higher than in normal HII regions observed in the disks of late-type spirals.
Contini, T. +4 more
openaire +3 more sources
Origin and Evolution of Large-scale Magnetic Fields
, 2015 Magnetic elds are ubiquitous at all scales in the Universe and have been observed in galaxies and clusters of galaxies via observations of di use radio emission and Faraday Rotation Measures.
Barnes, DJ
core
A Chemical Evolution of Draco Dwarf Galaxy: Monolithic or Merger Scenario?
, 2011 A chemical evolution of the Local Group dwarf galaxy Draco is considered. The stellar metallicity distribution function of Draco was calculated in the framework of both the monolithic and the merger scenario.
N. Tetyana
core +1 more source
Unveiling the Galactic Baryon Cycle Process by an Empirical Model
The Astrophysical JournalWe propose an empirical model to describe and constrain the baryon cycle process during galaxy evolution. This model utilizes the evolution of star formation rate, derived from the stellar mass–halo mass relations across different redshifts, and the cold
Yaoxin Chen +4 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 +3 more
wiley +1 more source
The Astrophysical JournalIn 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 +12 more
doaj +1 more source