Results 101 to 110 of about 2,487 (263)

Relativistic Jets in Gamma-Ray-Emitting Narrow-Line Seyfert 1 Galaxies

Galaxies, 2019
Before the launch of the Fermi Gamma-ray Space Telescope satellite only two classes of active galactic nuclei (AGN) were known to generate relativistic jets and thus to emit up to the γ -ray energy range: blazars and radio galaxies, both hosted
Filippo D’Ammando
doaj   +1 more source

Winter‐active spiders (Clubiona) have a hyperactive antifreeze protein with a unique beta‐solenoid fold

The FEBS Journal, EarlyView.
Antifreeze proteins from winter‐active spiders were purified using their affinity for ice. After LC–MSMS characterization, corresponding transcripts were identified. The antifreeze protein folds as a β‐solenoid with a large flat ice‐binding site on one surface and can bind to ice crystals and prevent their growth at −4 °C.
Laurie A. Graham, Stano Pekár, Ina M. Hainer, Peter L. Davies   +3 more
wiley   +1 more source

ULTI-WAVELENGTH MONITORING OF THE CHANGING-LOOK AGN NGC 2617 DURING STATE CHANGES

Odessa Astronomical Publications, 2017
Optical  and  near-infrared  photometry, optical spectroscopy, and  soft X-ray and UV  monitoring of  the  changing-look  active  galactic  nucleus  NGC  2617 show that it continues to have the appearance of a type-1 Seyfert galaxy.
V. L. Oknyansky, C. M. Gaskell, N. A. Huseynov, Kh. M. Mikailov, V. M. Lipunov, N. I. Shatsky, S. S. Tsygankov, E. S. Gorbovskov, A. M. Tatarnikov, V. G. Metlov, K. L. Malanchev, M. B. Brotherton, D. Kasper, P. Du, X. Chen, M. A. Burlak, D. A. H. Buckley, R. Rebolo, M. Serra-Ricart, R. Podesta, H. Levato   +20 more
doaj   +1 more source

Schmidt-Kennicutt relations in SPH simulations of disc galaxies with effective thermal feedback from supernovae [PDF]

, 2012
Pierluigi Monaco, Giuseppe Murante, S. Borgani, Klaus Dolag   +3 more
openalex   +1 more source

Cowbirds use conspecific social information to detect host nests in the wild

Ibis, EarlyView.
Recent work shows that hosts of avian brood parasites use social information to increase egg rejection rates, but fewer studies explore how parasites themselves use such information to detect host nests in the wild. To determine whether wild Brown‐headed Cowbirds Molothrus ater use social information to detect host nests, we measured how individual ...
Omar J. Morosse, Leah E. Pistone, Daniel Hanley   +2 more
wiley   +1 more source

Radiation hydrodynamics simulations of the evolution of the diffuse ionized gas in disc galaxies [PDF]

, 2019
Bert Vandenbroucke, Kenneth Wood
openalex   +1 more source

Epidemiology and Genetics of Rheumatic Diseases Suggest a Constant Rate of DNA Damage as Underlying Cause

Immunology, EarlyView.
A constant rate of DNA damage that is not perfectly repaired will cause a constant rate of DNA mutations. The chance of mutation will increase if DNA is prone to damage, such as occurs in somatic hypermutation (SHM) hotspots and GC‐rich DNA. Thus, if one mutation‐prone DNA site drives disease, the age of onset of disease and degree of penetrance should
Piet C. de Groen
wiley   +1 more source

Internal Kinematics of Modelled Isolated and Interacting Disc Galaxies [PDF]

, 2006
T. Kronberger, W. Kapferer, S. Schindler, A. Böhm, Elif Kutdemir, B. Ziegler   +5 more
openalex   +1 more source

Proteomic analysis of the zone of degeneration at the mitosis–meiosis transition stage in wild‐caught male catshark (Scyliorhinus canicula), correlated with an unusually high‐water temperature in the English Channel

Journal of Fish Biology, EarlyView.
Abstract In the context of current global change, variations in water temperature are one of the environmental conditions with serious consequences for marine life, including reproductive processes. In the small spotted catshark Scyliorhinus canicula, spermatogenesis occurs in spermatocysts composed of synchronously developing germ cells associated ...
Fabian Jeanne, Stanislas Pilet, Sean Heighton, Benoît Bernay, Pascal Sourdaine   +4 more
wiley   +1 more source

The origin of discs and spheroids in simulated galaxies [PDF]

, 2012
Laura V. Sales, Julio F. Navarro, Tom Theuns, Joop Schaye, Simon D. M. White, Carlos S. Frenk, Robert A. Crain, Claudio Dalla Vecchia   +7 more
openalex   +1 more source