Results 61 to 70 of about 6,418 (210)

Identifying the 3FHL Catalog. VI. Results of the 2019 Gemini Optical Spectroscopy

The Astronomical Journal, 2023
Active galactic nuclei with their relativistic jets pointed toward the observer are a class of luminous gamma-ray sources commonly known as blazars. The study of this source class is essential to unveil the physical processes powering these extreme jets,
M. Rajagopal, L. Marcotulli, K. Labrie, S. Marchesi, M. Ajello   +4 more
doaj   +1 more source

Making teaching an attractive profession: What are the challenges and opportunities for minority ethnic teachers in England?

British Educational Research Journal, Volume 52, Issue 3, Page 1878-1897, June 2026.
Abstract This paper explores the challenges and opportunities surrounding the recruitment and retention of minority ethnic teachers in England. Drawing on interview data from 33 teachers and school leaders of diverse ethnic backgrounds, it investigates whether racialised barriers identified in earlier research have shifted in the current context of ...
Antonina Tereshchenko, Feyisa Demie, Stephen Gorard, Yiyang Gao, Beng Huat See, Nadia Siddiqui   +5 more
wiley   +1 more source

Sporecasting Biogeography Across Scales: Continental Patterns and Local Constraints on Macrofungal Dispersal

Molecular Ecology, Volume 35, Issue 9, May 2026.
ABSTRACT Understanding how aerial fungal diversity varies across space, habitat, and disturbance is key to linking local‐scale sporocarp (fruiting body) reproduction with continental‐scale biogeography. In this study, we combined passive spore trap metabarcoding with macrofungal sporocarp records from 31 plots in eight sites across North America to ...
Andrew W. Ratz, A. Elizabeth Arnold, Haley M. Burrill, Marcos V. Caiafa, John Conery, Heather A. Dawson, Carolyn A. Delevich, Jeff M. Diez, Serita D. Frey, D. Jean Lodge, Eivind K. Ronold, Bitty A. Roy, Matthew E. Smith, Jana U'Ren, Andrew W. Wilson, Justin J. Loucks, Jennie Wuest, C. Benton Willis, Peter G. Kennedy   +18 more
wiley   +1 more source

Radiation processes in blazars [PDF]

AIP Conference Proceedings, 1997
We present an overview of the current theoretical models attempting to describe the structure and radiative processes operating in blazars and discuss the observational constraints that these models must confront.
openaire   +2 more sources

Collagen organisation in the fibrous joint capsules in the digits of the human hand

Journal of Anatomy, Volume 248, Issue 4, Page 612-623, April 2026.
The function of the finger joints is important for daily life. In this review of the literature, we consider the role of collagen and its organization within the fibrous finger joint capsules of the interphalangeal (IP) joints and investigate the relationships between collagen orientation and joint function. Abstract Normal function of the hand and, in
Fiona R. Saunders, Ronald G. Coutts, Richard M. Aspden, Flora Gröning   +3 more
wiley   +1 more source

GeV Variability Properties of TeV Blazars Detected by Fermi-LAT

The Astrophysical Journal Supplement Series
Variability is a prominent observational feature of blazars. The high-energy radiation mechanism of jets has always been important but is still unclear.
Gege Wang, Hubing Xiao, Junhui Fan, Xin Zhang   +3 more
doaj   +1 more source

The VLBA-BU-BLAZAR Multi-Wavelength Monitoring Program

Galaxies, 2016
We describe a multiwavelength program of monitoring of a sample of bright γ-ray blazars, which the Boston University (BU) group has being carrying out since June 2007.
Svetlana Jorstad, Alan Marscher
doaj   +1 more source

Localized Teacher Recruitment Through “Grow‐Your‐Own”: Impacts of the High School Teacher Academy of Maryland Program

Journal of Policy Analysis and Management, Volume 45, Issue 2, Spring 2026.
ABSTRACT Recruiting teachers via “grow‐your‐own” (GYO) programs is a popular, yet rarely evaluated, strategy for addressing local workforce shortages and ensuring that incoming teachers resemble, understand, and have strong connections to their communities.
David Blazar, Wenjing Gao, Seth Gershenson, Ramon Goings, Francisco Lagos   +4 more
wiley   +1 more source

The University of Michigan Centimeter-Band All Stokes Blazar Monitoring Program: Single-Dish Polarimetry as a Probe of Parsec-Scale Magnetic Fields

Galaxies, 2017
The University of Michigan 26-m paraboloid was dedicated to obtaining linear polarization and total flux density observations of blazars from the mid-1960s until June 2012, providing an unprecedented record tracking centimeter-band variability over ...
Margo F. Aller, Hugh D. Aller, Philip A. Hughes   +2 more
doaj   +1 more source

Blazar Jets as Possible Sources of Ultra-High Energy Photons: A Short Review

Universe, 2022
In this paper, I present a qualitative discussion on the prospect of production of ultra-high photons in blazars. The sources are a subclass of active galactic nuclei which host supermassive black holes and fire relativistic jets into the intergalactic ...
Gopal Bhatta
doaj   +1 more source