Results 61 to 70 of about 515 (214)
Psychiatry and Clinical Neurosciences Reports, Volume 5, Issue 2, June 2026.This study examined the association between attention‐deficit/hyperactivity disorder (ADHD) traits and gray matter volume (GMV) in 534 healthy young adults. Higher Hyperactivity/Restlessness scores were associated with greater GMV in the right dorsolateral prefrontal cortex (DLPFC), a region implicated in executive control and behavioral regulation. No
Haruka Asaoka +4 more
wiley +1 more source
Strong and micro lensing in distant quasars [PDF]
, 2023 Most large galaxies contain Super Massive Black Holes at their centers, drawing matter nearby to form swirling accretion disks emitting electromagnetic radiation. These are Active Galactic Nuclei.
Paic, Eric Gérard Guy
core +1 more source
The Quasar Proximity Effect as an Alternative Probe of Quasar Pair Distances
The Astrophysical Journal LettersRecently discovered quasar pairs at high redshifts ( z ≳ 5) are likely precursors to supermassive black hole mergers, providing a promising window to high-redshift quasar growth mechanisms.
Huanqing Chen +2 more
doaj +1 more source
ChemMedChem, Volume 21, Issue 9, 14 May 2026.The anticancer activity of the complexes Pd3Spd2, Pt3Spd2, Pt2Put2(NH3)4 and Pd2Put2 against human TNBC, non‐TNBC and healthy breast cells was evaluated. The metabolic impact of the most promising metal complexes—Pd3Spd2 and Pt2Put2(NH3)4—was further assessed using vibrational microspectroscopies, providing detailed insights into the drug‐induced ...
Clara B. Martins +3 more
wiley +1 more source
Superluminal motion in the double-lobed quasar 3C 245
The Astrophysical Journal, 1987 VLBI observations of 3C 245 obtained at 10.7 GHz with the Mark III array at five epochs in 1981-1986 are reported. The data-reduction and model-fitting procedures are explained, and the results are presented in tables, graphs, and maps along with previously published data on 11 other superluminal sources. The central component of the quasar is found to
D. H. Hough, A. C. S. Readhead
openaire +1 more source
First In Vivo 23Na Human Imaging at 10.5 T Using a Combined Sodium‐Proton Transceiver Body Array
Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 2429-2441, April 2026.ABSTRACT Purpose To demonstrate the first in vivo human 23Na MRI at 10.5 T using a novel dual‐tuned transceiver body array and to evaluate a self‐gating approach for respiratory motion compensation, focusing on renal imaging. Methods A custom‐built eight‐channel 23Na‐loop 1H‐dipole transceiver array was designed, constructed, and characterized.
Simon Schmidt +2 more
wiley +1 more source
The unification of radio galaxies and quasars: implications of the radio sizes and number densities [PDF]
, 1994 We examine the recent suggestion that the relative counts and median radio sizes of the moderately distant quasars and radio galaxies in the 3CR complete sample are inconsistent with the simple unification scheme, according to which radio galaxies appear
Mangalam, Arun V. +2 more
core +1 more source
Galactic-scale Quasar Pairs from the Sloan Digital Sky Survey and Gaia DR3
The Astrophysical JournalWe perform a systematic search for galactic-scale quasar pairs and small-scale ( 10 ^44.5 erg s ^−1 ) at 0.5
Yuanzhe Jiang +8 more
doaj +1 more source
The radio time delay in the double quasar 0957 + 561
The Astrophysical Journal, 1992 Gravitational lens models for the double quasar 0957+561 predict that there should be a time delay of roughly 1 year between the arrival of wave fronts from the two images. In order to measure this delay, the flux densities were monotored at λ = 6 cm of 0957+561A and 0957+561B since 1979.
J. Lehar +3 more
openaire +1 more source
Journal of Applied Clinical Medical Physics, Volume 27, Issue 3, March 2026.Abstract Background Precise radiotherapy relies on accurately targeting tumours while minimising exposure to healthy tissue, yet patient and organ motion complicate treatment delivery. To address intra‐fractional motion, multi‐leaf collimator (MLC) tracking systems have recently been adopted, adapting beam shapes in real‐time.
André Haraldsson +6 more
wiley +1 more source