Results 111 to 120 of about 144,349 (266)
Fresh Activity in Old Systems: Radio AGN in Fossil Groups of Galaxies
, 2012 We present the first systematic 1.4 GHz Very Large Array radio continuum survey of fossil galaxy group candidates. These are virialized systems believed to have assembled over a gigayear in the past through the merging of galaxy group members into a ...
Bîrzan +25 more
core +1 more source
Integrative Zoology, EarlyView.Feeding with tannin‐rich diets altered the fecal microbial composition and increased the relative abundance of tannin‐degrading microbes. We hypothesize that fecal bacteria and fungi may play important roles in helping herbivores adapt to tannin‐rich diets but respond to different tannin concentrations varies.
Di Zhu +5 more
wiley +1 more source
H i Content of Group Galaxies from the FAST All Sky H i Survey
The Astrophysical JournalWe investigate the atomic gas (H i ) content of galaxies in groups using early data from the Five-hundred-meter Aperture Spherical Radio Telescope (FAST) All Sky H i survey. Taking advantage of FAST’s blind, wide-area coverage and uniform sensitivity, we
Shulan Yan +5 more
doaj +1 more source
Animal Conservation, EarlyView.Captive populations of threatened species risk losing genetic diversity over time. We evaluated the genetic status of contemporary captive western lowland gorillas (Gorilla gorilla gorilla) at Howletts and Port Lympne and compared this with specimens from a historical wild population.
Jaimie Morris +5 more
wiley +1 more source
Studying Galaxy Formation and Evolution from Local Group Galaxies [PDF]
, 2007 8 pages, 2 figures. To appear in the proceedings for the VII Scientific Meeting of the Spanish Astronomical Society (SEA) held in Barcelona, September 12-15 ...
openaire +2 more sources
The Local Group and Other Neighboring Galaxy Groups [PDF]
The Astronomical Journal, 2005 Over the last few years, rapid progress has been made in distance measurements for nearby galaxies based on the magnitude of the tip of red giant branch stars. Current CCD surveys with HST and large ground- based telescopes bring $\sim$10%-accurate distances for roughly a hundred galaxies within 5 Mpc. The new data on distances to galaxies situated in (
openaire +2 more sources
Out There No One Has a Right to Die
Bioethics, EarlyView.ABSTRACT The eventual goal of space exploration is to colonize exoplanets and their moons outside our solar system. This is a dangerous and immoral endeavour. The extraterrestrial life forms encountered would be hostile, vulnerable or both, and the descendants of the original pioneers would be involuntarily exposed to hazardous conditions and ...
Matti Häyry
wiley +1 more source
The cosmological constant derived via galaxy groups and clusters
European Physical Journal C: Particles and Fields, 2019 The common nature of dark matter and dark energy is argued in Gurzadyan (Eur Phys J Plus 134:14, 2019) based on the approach that the cosmological constant $$\varLambda $$ Λ enters the weak-field General Relativity following from Newton theorem on the ...
V. G. Gurzadyan, A. Stepanian
doaj +1 more source
The Evolution of Galaxy Groups and of Galaxies Therein [PDF]
, 2007 Properties of groups of galaxies depend sensitively on the algorithm for group selection, and even the most recent catalogs of groups built from redshift-space selection should suffer from projections and infalling galaxies. The cosmo-dynamical evolution of groups from initial Hubble expansion to collapse and virialization leads to a fundamental track (
openaire +3 more sources
Toll‐like receptor 4 mediates lipopolysaccharide‐induced emesis
British Journal of Pharmacology, EarlyView.Background and Purpose Lipopolysaccharide (LPS) induces inflammation and sepsis through Toll‐like receptor 4 (TLR4) activation. Common laboratory animals do not exhibit emesis, but administration of LPS in piglets, cats, and dogs induces emesis via peripheral mechanisms.
Luping Liu +5 more
wiley +1 more source