Results 71 to 80 of about 112,522 (249)

Epstein‐Barr Virus Expressed Long Non‐Coding RNA (lncBARTs) Regulate EBV Latent Genome Replication

open access: yesAdvanced Science, EarlyView.
EBV produces abundant level of lncBARTs, which are essential for maintaining viral genome replication in EBV‐associated cancers. LncBARTs interact with a complex comprising BRD4, CTCF and viral protein EBNA1 at EBV oriP region. This interaction tethers oriP to host chromosomes, facilitating EBV episome replication.
Jiayan Liu   +12 more
wiley   +1 more source

First Results from the JWST Early Release Science Program Q3D: Ionization Cone, Clumpy Star Formation, and Shocks in a z = 3 Extremely Red Quasar Host

open access: yesThe Astrophysical Journal, 2023
Massive galaxies formed most actively at redshifts z = 1–3 during the period known as “cosmic noon.” Here we present an emission-line study of the extremely red quasar SDSSJ165202.64+172852.3’s host galaxy at z = 2.94, based on observations with the Near
Andrey Vayner   +27 more
doaj   +1 more source

The Luminosity Dependence of Quasar Clustering

open access: yes, 2005
We investigate the luminosity dependence of quasar clustering, inspired by numerical simulations of galaxy mergers that incorporate black hole growth. These simulations have motivated a new interpretation of the quasar luminosity function.
Adam Lidz   +8 more
core   +1 more source

Overcoming PEG Antigenicity: Statistical PEG Isomers Reduce Antibody Binding

open access: yesAdvanced Science, EarlyView.
Conventional poly(ethylene glycol) (PEG) is commonly applied in biomedicine, but is now known to induce antibody formation. Here, it is shown that the development of “randomized PEG” (rPEG) featuring glycidyl methyl ether (GME) comonomers decreased antibody binding.
Mareike Deuker   +5 more
wiley   +1 more source

The Physical Relation between Disc and Coronal Emission in Quasars

open access: yesFrontiers in Astronomy and Space Sciences, 2018
We propose a modified version of the observed non-linear relation between the X-ray (2 keV) and the ultraviolet (2,500 Å) emission in quasars (i.e., LX∝LUVγ) which involves the full width at half-maximum, FWHM, of the broad emission line, i.e., LX∝LUVγ ...
Elisabeta Lusso   +2 more
doaj   +1 more source

Large SDSS quasar groups and their statistical significance

open access: yes, 2015
We use a volume-limited sample of quasars in the Sloan Digital Sky Survey (SDSS) DR7 quasar catalog to identify quasar groups and address their statistical significance.
Einasto, Maret   +4 more
core   +1 more source

The Quasar Main Sequence Explained by the Combination of Eddington Ratio, Metallicity, and Orientation [PDF]

open access: yesAstrophysical Journal, 2019
We address the effect of orientation of the accretion disk plane and the geometry of the broad-line region (BLR) as part of an effort to understand the distribution of quasars in optical plane of the quasar main sequence.
S. Panda, P. Marziani, B. Czerny
semanticscholar   +1 more source

Logarithmic and Strong Coupling Models in Weyl‐Type f(Q,T)$f(Q,T)$ Gravity

open access: yesAnnalen der Physik, EarlyView.
This work explores Weyl‐type f(Q,T) gravity using recent observational datasets — CC, Pantheon+, Union 3.0, and DESI DR2. Through MCMC analysis of logarithmic and strong coupling models, the study reveals a transition from deceleration to acceleration, quintessence‐to‐phantom dynamics, and late‐time consistency with LCDM, offering a geometry‐driven ...
Rahul Bhagat, S. K. Tripathy, B. Mishra
wiley   +1 more source

Exploring Possible Relations Between Optical Variability Time Scales and Broad Emission Line Shapes in AGN

open access: yesFrontiers in Astronomy and Space Sciences, 2018
Here we investigate the connection of broad emission line shapes and continuum light curve variability time scales of type-1 Active Galactic Nuclei (AGN).
Edi Bon   +4 more
doaj   +1 more source

Towards an Understanding of Changing-Look Quasars: An Archival Spectroscopic Search in SDSS

open access: yes, 2016
The uncertain origin of the recently-discovered `changing-looking' quasar phenomenon -- in which a luminous quasar dims significantly to a quiescent state in repeat spectroscopy over ~10 year timescales -- may present unexpected challenges to our ...
Anderson, Scott F.   +15 more
core   +2 more sources

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