Results 131 to 140 of about 89,220 (323)

ATAC‐seq in Emerging Model Organisms: Challenges and Strategies

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Principle of ATAC‐seq (left), overview of arthropod species with published ATAC‐seq data (middle), summary of experimental design (right). ABSTRACT The Assay for Transposase‐Accessible Chromatin with sequencing (ATAC‐seq) is a versatile and widely utilized method for identifying potential regulatory regions, such as promoters and enhancers, within a ...
Duğçar Ebrar Erdoğan   +13 more
wiley   +1 more source

The DELVE Quadruple Quasar Search. I. A Lensed Low-luminosity Active Galactic Nucleus

open access: yesThe Astronomical Journal
A quadruply lensed source, J125856.3–031944, has been discovered using the DELVE survey and Wide-field Infrared Survey Explorer W1–W2 colors. Follow-up direct imaging carried out with the Magellan Baade 6.5 m telescope is analyzed, as is spectroscopy ...
Paul L. Schechter   +27 more
doaj   +1 more source

3C 273 WITH NuSTAR: UNVEILING THE ACTIVE GALACTIC NUCLEUS [PDF]

open access: yes, 2015
We present results from a 244 ks NuSTAR observation of 3C 273 obtained during a cross-calibration campaign with the Chandra, INTEGRAL, Suzaku, Swift, and XMM-Newton observatories. We show that the spectrum, when fit with a power-law model using data from
K. Madsen   +19 more
semanticscholar   +1 more source

The Origin of Keplerian Megamaser Disks

open access: yes, 2012
Several examples of thin, Keplerian, sub-parsec megamaser disks have been discovered in the nuclei of active galaxies and used to precisely determine the mass of their host black holes.
Wardle, Mark, Yusef-Zadeh, Farhad
core   +1 more source

Quad‐SPIM: A High‐Speed, Multi‐Color Light‐Sheet Microscope for 3D Imaging of Large Cleared Human Brain Tissues

open access: yesLaser &Photonics Reviews, EarlyView.
A high‐speed, multi‐color light‐sheet microscope, named quad‐SPIM, enables rapid three dimensional (3D) imaging of large cleared human brain samples with simultaneous four‐channel acquisition. This custom‐built system achieves subcellular resolution across centimeter‐scale volumes, maintaining high image quality.
Laura Perego   +11 more
wiley   +1 more source

High-frequency Power Spectrum of Active Galactic Nucleus NGC 4051 Revealed by NICER

open access: yesThe Astrophysical Journal Letters
Variability studies offer a compelling glimpse into black hole dynamics, and Neutron Star Interior Composition Explorer's (NICER’s) remarkable temporal resolution propels us even further.
B. Rani   +8 more
doaj   +1 more source

Cosmological Evolution of the Hard X-Ray Active Galactic Nucleus Luminosity Function and the Origin of the Hard X-Ray Background [PDF]

open access: yes, 2003
We investigate the cosmological evolution of the hard X-ray luminosity function (HXLF) of active galactic nuclei (AGNs) in the 2-10 keV luminosity range of 1041.5-1046.5 ergs s-1 as a function of redshift up to 3.
Y. Ueda, M. Akiyama, K. Ohta, T. Miyaji
semanticscholar   +1 more source

The spin measurement of black holes in active galactic nucleus

open access: yesJournal of Physics: Conference Series, 2021
Abstract Spin as one of the two parameters describing black holes. Measuring the spin of black holes is very important in black holes research. In this paper, we introduce the method to measure the spin of AGNs which is the X-ray reflection method, including both specific content and precautions.
openaire   +2 more sources

Somato‐Cognitive Action Network in Focal Dystonia

open access: yesMovement Disorders, EarlyView.
Abstract Background The central pathology causing idiopathic focal dystonia remains unclear. The recently identified somato‐cognitive action network (SCAN) has been implicated. Objective We tested whether the effector‐agnostic SCAN may constitute a central pathology shared across dystonia subtypes, whereas the effector‐specific regions in the primary ...
Yuchao Wang   +8 more
wiley   +1 more source

XMM-Newton Conclusively Identifies an Active Galactic Nucleus in a Green Pea Galaxy

open access: yesThe Astrophysical Journal
Green Pea galaxies are a class of compact, low-mass, low-metallicity star-forming galaxies in the relatively local Universe. They are believed to be analogs of high-redshift galaxies that reionized the Universe, and, indeed, the James Webb Space ...
Peter G. Boorman   +25 more
doaj   +1 more source

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