Results 71 to 80 of about 2,193 (179)

Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie

open access: yesPhysik in unserer Zeit, Volume 57, Issue 1, Page 10-18, January 2026.
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley   +1 more source

Theoretical Study of the Effects of Magnetic Field Geometry on the High-Energy Emission of Blazars

open access: yesGalaxies, 2016
The knowledge of the structure of the magnetic field inside a blazar jet, as deduced from polarization observations at radio to optical wavelengths, is closely related to the formation and propagation of relativistic jets that result from accretion onto ...
Manasvita Joshi   +2 more
doaj   +1 more source

Myeloid‐Derived Suppressor Cells: Immunoregulatory Roles and Therapeutic Prospects in Immune‐Mediated Hematological Disorders

open access: yesJournal of Immunology Research, Volume 2026, Issue 1, 2026.
Myeloid‐derived suppressor cells (MDSCs) are a heterogeneous population of immature myeloid cells that have been increasingly defined and characterized over the past two decades, known for their remarkable capacity to expand and exert immunosuppressive effects in various pathological contexts, such as malignancies, infections, and inflammatory diseases.
Qi Liu   +7 more
wiley   +1 more source

VLBI Observations of Nearby HBLs: Physical Implications

open access: yesGalaxies
We review the jet kinematics of HBL blazars based on results of the MOJAVE survey, which obtained images of active galactic nuclei with the Very Long Baseline Array (VLBA) at 15 GHz, and the VLBA-BU-BLAZAR program as well as its successor BEAM-ME program,
Svetlana G. Jorstad   +2 more
doaj   +1 more source

The Long-Lasting Activity in the Flat Spectrum Radio Quasar (FSRQ) CTA 102

open access: yesGalaxies, 2019
The flat spectrum radio quasar CTA 102 ( z = 1 . 032 ) went through a tremendous phase of variability. Since early 2016 the gamma-ray flux level has been significantly higher than in previous years. It was topped by a four month long giant outburst,
Michael Zacharias   +5 more
doaj   +1 more source

Progress in Multi-wavelength and Multi-Messenger Observations of Blazars and Theoretical Challenges

open access: yesGalaxies, 2019
This review provides an overview of recent advances in multi-wavelength and multi-messenger observations of blazars, the current status of theoretical models for blazar emission, and prospects for future facilities.
Markus Böttcher
doaj   +1 more source

“I know what's best for my child”: A qualitative analysis of US cisgender‐heterosexual and LGBTQ parents’ perspectives on inclusive education policies

open access: yesAnalyses of Social Issues and Public Policy, Volume 25, Issue 2, August 2025.
Abstract Diversity education in the K‐12 years is a contentious issue in the contemporary US context. Given evidence that parental identity influences beliefs about and support for diversity education, we qualitatively explored cisgender‐heterosexual and LGBTQ+ parents’ (N = 609) beliefs about the appropriateness of inclusive educational policies in K ...
Flora Oswald   +3 more
wiley   +1 more source

Error climate and alienation from teachers: A longitudinal analysis in primary school

open access: yesBritish Journal of Educational Psychology, Volume 95, Issue 1, Page 41-54, March 2025.
Abstract Background Dealing with errors in the classroom is a crucial aspect of instructional quality and has multiple consequences for students' own dealing with errors, their learning and their achievement. The available literature on error climate indicates a paucity of research on the effects of perceived error climate on social aspects such as ...
Gabriele Steuer   +2 more
wiley   +1 more source

The blazar's divide and the properties of Fermi blazars

open access: yes, 2009
8 pages, 8 figures. Invited talk at the meeting: Accretion and ejection in AGN: a global view (Como, June 2009). To be published in Astron. Soc. of the Pacific Conf. Series (ASPCS)
openaire   +2 more sources

Suborbital Fermi/LAT Analysis of the Brightest Gamma-Ray Flare of Blazar 3C 454.3

open access: yesGalaxies, 2017
Recent detection of suborbital gamma-ray variability of Flat Spectrum Radio Quasar (FSRQ) 3C 279 by Fermi Large Area Telescope (LAT) is in severe conflict with established models of blazar emission.
Krzysztof Nalewajko
doaj   +1 more source

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