Results 81 to 90 of about 24,339 (257)

Chasing the Neutrino Blazar Candidates

open access: yesThe Astrophysical Journal Supplement Series
In our study of the correlations between IceCube-detected neutrino events and γ -ray properties of blazars, we recognize the inherent challenges posed by the limited detection of neutrinos.
Jingtian Zhu   +5 more
doaj   +1 more source

Radiation processes in blazars [PDF]

open access: yesAIP 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

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

Association of the IceCube neutrinos with CAZ blazar light curves

open access: yesAstronomy & Astrophysics
The IceCube Neutrino Observatory has detected several hundred high-energy neutrinos from cosmic sources. Despite numerous studies searching for their origin, it is still not known which sources emit them.
Kouch Pouya M.   +5 more
doaj   +1 more source

Variability in blazars [PDF]

open access: yesAstronomy and Astrophysics Supplement Series, 1998
The results of both BVRI CCD photometric monitoring and fast photometry for 8 blazars and variable quasars are presented. There is intraday variability for 6 blazars and very short timescales (minutes to two hours) variability for 5 objects. Implications for relativistic beaming are briefly discussed.
Guibin Jia   +3 more
openaire   +1 more source

Exploring the Impact of Preoperative Laboratory Values on Short‐Term Outcomes in Complex Carpal Tunnel Decompression Surgery

open access: yesAdvances in Orthopedics, Volume 2025, Issue 1, 2025.
Background: The present study analyzes the effects of preoperative serum albumin, hematocrit, and creatinine on postoperative outcomes in patients undergoing carpal tunnel decompression surgery. Methods: The American College of Surgeons National Quality Improvement Program (NSQIP) database was queried from 2011 to 2020.
Anitesh Bajaj   +6 more
wiley   +1 more source

Recognizing Blazars Using Radio Morphology from the VLA Sky Survey

open access: yesThe Astrophysical Journal
Blazars are radio-loud active galactic nuclei whose jets have a very small angle to our line of sight. Observationally, the radio emissions are mostly compact or compact-core with a one-sided jet.
Zhang-Liang Xie   +6 more
doaj   +1 more source

Long-Term Optical Monitoring of Blazars

open access: yesGalaxies, 2019
Systematic monitoring of specific targets in the optical regime was historically applied on a very narrow sample of known variable stars. The discovery of blazars in the 20th century brought to the foreground the need for new global sky surveys, covering
Kosmas Gazeas
doaj   +1 more source

Can teaching be taught? Improving teachers' pedagogical skills at scale in rural Peru

open access: yesQuantitative Economics, Volume 16, Issue 1, Page 185-233, January 2025.
We evaluate the impact of a large‐scale teacher coaching program in Peru, a context with high teacher turnover, on teachers' pedagogical skills and student learning. Previous studies find that small‐scale coaching programs can improve teaching of reading and science in developing countries.
Juan F. Castro   +4 more
wiley   +1 more source

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