Results 61 to 70 of about 83,297 (253)

Probing Gravitational Lensing of the CMB with SDSS-IV Quasars [PDF]

open access: yes, 2019
We study the cross-correlation between the Planck CMB lensing convergence map and the eBOSS quasar overdensity obtained from the Sloan Digital Sky Survey (SDSS) IV, in the redshift range $0.9 < z < 2.2$. We detect the CMB lensing convergence-quasar cross
Ferraro, Simone   +3 more
core   +2 more sources

Formation of Condition‐Dependent Alpha‐Synuclein Fibril Strain in Artificial Cerebrospinal Fluid

open access: yesAdvanced Science, Volume 13, Issue 7, 3 February 2026.
α‐synuclein aggregation in artificial cerebrospinal fluid (aCSF) leads to a distinct conformation with an electron density pocket motif found in aggregates from PD and MSA patients. Such fibrils has low stability outside the reaction conditions, hinting about the influence of cerebrospinal fluid components not only on the formation, but also on the ...
Rūta Sniečkutė   +7 more
wiley   +1 more source

Discovery of Two Spectroscopically Peculiar, Low-Luminosity Quasars at z~4 [PDF]

open access: yes, 2007
We report the discovery of two low-luminosity quasars at z~4, both of which show prominent N IV] 1486A emission. This line is extremely rare in quasar spectra at any redshift; detecting it in two out of a sample of 23 objects (i.e., ~ 9% of the sample ...
Ashish Mahabal   +5 more
core   +2 more sources

MEASURING THE TIME DELAYS IN GRAVITATIONALLY LENSED QUASARS IN THE PRESENCE OF MICROLENSING

open access: yesRadio Physics and Radio Astronomy, 2014
A method to measure the time delays in gravitationally lensed quasars is proposed, which provides a simple and transparent procedure to eliminate the effects of microlensing events.
V. S. Tsvetkova   +2 more
doaj   +1 more source

Overcoming PEG Antigenicity: Statistical PEG Isomers Reduce Antibody Binding

open access: yesAdvanced Science, Volume 13, Issue 7, 3 February 2026.
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

Automated quasar detection [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1983
The existing spectral searches for quasars have increased the number of quasars known very substantially but have not contributed proportionately to an understanding of the collective properties because of the selection effects. To fully exploit the spectral searches we have developed the technique of automated quasar detection (AQD) using objective ...
Roger G. Clowes   +2 more
openaire   +2 more sources

Quasar-galaxy and AGN-galaxy cross-correlations [PDF]

open access: yes, 1998
We compute quasar-galaxy and AGN-galaxy cross-correlation functions for samples taken from the \cite{VCV98} catalog of quasars and active galaxies, using tracer galaxies taken from the Edinburgh/Durham Southern Catalog.
Babul A.   +9 more
core   +3 more sources

The Marriage of Metal Nanoclusters With Reticular Frameworks: Synthetic Strategies and Biomedical Applications

open access: yesAggregate, Volume 7, Issue 2, February 2026.
The integration of metal nanoclusters (MNCs) with reticular frameworks (RFs) has recently emerged as a powerful strategy to create composite materials with enhanced and synergistic functionalities. This review provides an overview of the synthetic strategies developed for constructing MNCs/RFs composites and their recent advances in biomedical ...
Wenfeng Liu   +3 more
wiley   +1 more source

Quasars and their host galaxies

open access: yes, 2006
This review attempts to describe developments in the fields of quasar and quasar host galaxies in the past five. In this time period, the Sloan and 2dF quasar surveys have added several tens of thousands of quasars, with Sloan quasars being found to z>6.
A. Laor   +81 more
core   +2 more sources

The Discovery of a Gravitationally Lensed Quasar at z = 6.51 [PDF]

open access: yes, 2018
Strong gravitational lensing provides a powerful probe of the physical properties of quasars and their host galaxies. A high fraction of the most luminous high-redshift quasars was predicted to be lensed due to magnification bias.
Bian, Fuyan   +19 more
core   +2 more sources

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