Results 31 to 40 of about 34,519 (239)

A Comprehensive Power Spectral Density Analysis of Astronomical Time Series. I. The Fermi-LAT Gamma-Ray Light Curves of Selected Blazars [PDF]

Astrophysical Journal Supplement Series, 2020
We present the results of the Fermi-Large Area Telescope 10 yr long light curve (LC) modeling of selected blazars: six flat-spectrum radio quasars (FSRQs) and five BL Lacertae (BL Lacs), examined in 7, 10, and 14 day binning.
M. Tarnopolski, N. Żywucka, V. Marchenko, J. Pascual-Granado   +3 more
semanticscholar   +1 more source

Patterns in the Multiwavelength Behavior of Candidate Neutrino Blazars [PDF]

Astrophysical Journal, 2020
Motivated by the identification of the blazar TXS 0506+056 as the first promising high-energy neutrino counterpart candidate, we search for additional neutrino blazar candidates among the Fermi–Large Area Telescope detected blazars.
A. Franckowiak, S. Garrappa, V. Paliya, B. Shappee, R. Stein, N. Strotjohann, M. Kowalski, S. Buson, S. Kiehlmann, W. Max-Moerbeck, R. Angioni   +10 more
semanticscholar   +1 more source

The impact of guardian's usage of the Internet on children's cognitive skills

International Studies of Economics, Volume 18, Issue 2, Page 193-210, June 2023., 2023
Abstract In the digital age, the internet has become an essential source of information gathering and maintains a network of social contact. In this paper, we use microdata from the China Family Panel Studies to examine the effects of guardian's internet use on teenager's cognitive skills.
Guangsu Zhou, Keyi Guo
wiley   +1 more source

Multiwavelength astrophysics of the blazar OJ 287 and the project MOMO

Astronomische Nachrichten, Volume 344, Issue 4, May 2023., 2023
Abstract We are carrying out the densest and longest multiyear, multiwavelength monitoring project of OJ 287 ever done. The project MOMO (Multiwavelength Observations and Modeling of OJ 287) covers wavelengths from the radio to the high‐energy regime. A few selected observations are simultaneous with those of the Event Horizon Telescope (EHT).
S. Komossa, A. Kraus, D. Grupe, M.L. Parker, A. Gonzalez, L.C. Gallo, M.A. Gurwell, S. Laine, S. Yao, S. Chandra, L. Dey, J.L. Gómez, K. Hada, D. Haggard, A.R. Hollett, H. Jermak, S. Jorstad, T.P. Krichbaum, S. Markoff, C. McCall, J. Neilsen, M. Nowak   +21 more
wiley   +1 more source

To what extent a modern teaching style benefits students? Why do teachers act the way they do?

Journal of Computer Assisted Learning, Volume 39, Issue 2, Page 578-590, April 2023., 2023
Abstract Background The growth of teaching practices conducted to promote cognitive activation and active participation in the classroom in recent years has become the epicentre of an active debate regarding their effectiveness. Objectives This study is aimed to shed some light on this topic by empirically analysing the causes and consequences of more ...
Adriano Villar‐Aldonza
wiley   +1 more source

Digital skills critical for education: Video analysis of students' technology use in Norwegian secondary English classrooms

Journal of Computer Assisted Learning, Volume 39, Issue 1, Page 269-285, February 2023., 2023
Abstract Background Globally, digital skills are a crucial aspect of education that schools should develop systematically. Research on digital skills tends to be measured using self‐reports, performance tests or interventions. There is less knowledge about student and teacher uptake of technology in school, making it important to investigate the actual
Astrid Elisabeth Kure, Lisbeth M. Brevik, Marte Blikstad‐Balas   +2 more
wiley   +1 more source

Declining interest in science in lower secondary school classes: Quasi‐experimental and longitudinal evidence on the role of teaching and teaching quality

Journal of Research in Science Teaching, Volume 60, Issue 1, Page 164-195, January 2023., 2023
Abstract Although promoting student interest is a pivotal educational goal, student interest in science, and particularly in physics, declines substantially during secondary school. This study focused on the long‐term development of interest in physics at the lower secondary level (grades 5–7) and examined the role of teaching and teaching quality on ...
Lena Steidtmann, Thilo Kleickmann, Mirjam Steffensky   +2 more
wiley   +1 more source

Kinematics of Parsec-scale Jets of Gamma-Ray Blazars at 43 GHz within the VLBA-BU-BLAZAR Program [PDF]

, 2017
We analyze the parsec-scale jet kinematics from 2007 June to 2013 January of a sample of γ-ray bright blazars monitored roughly monthly with the Very Long Baseline Array at 43 GHz.
S. Jorstad, A. Marscher, D. Morozova, I. Troitsky, I. Agudo, C. Casadio, A. Foord, J. G'omez, N. MacDonald, S. Molina, A. Lähteenmäki, J. Tammi, M. Tornikoski   +12 more
semanticscholar   +1 more source

Blazars at the Cosmic Dawn [PDF]

Astrophysical Journal, 2020
The uncharted territory of the high-redshift (z ≳ 3) universe holds the key to understanding the evolution of quasars. In an attempt to identify the most extreme members of the quasar population, that is, blazars, we have carried out a multiwavelength ...
V. Paliya, M. Ajello, H. Cao, M. Giroletti, A. Kaur, G. Madejski, B. Lott, D. Hartmann   +7 more
semanticscholar   +1 more source

Extracellular Matrix Microparticles Improve GelMA Bioink Resolution for 3D Bioprinting at Ambient Temperature

Macromolecular Materials and Engineering, Volume 307, Issue 10, October 2022., 2022
Decellularized extracellular matrix particles derived from porcine tracheal cartilage are added to gelatin‐methacryloyl, creating a yield stress fluid capable of forming self‐supporting structures. This bioink blend performs similarly at 25 °C to gelatin methacryloyl alone at 15 °C in linear resolution, print fidelity, and tensile mechanics.
Zachary Galliger, Caleb D. Vogt, Haylie R. Helms, Angela Panoskaltsis‐Mortari   +3 more
wiley   +1 more source