Results 41 to 50 of about 38,287 (310)
Blazars in the early Universe [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 MNRAS, in ...
Volonteri M. +3 more
openaire +4 more sources
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
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 +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 +12 more
semanticscholar +1 more source
The blazar sequence revised [PDF]
Astronomische Nachrichten, 2021 We propose and test a fairly simple idea that could account for the blazar sequence: all jets are launched with similar energy per baryon, independently of their power. For instance, flat‐spectrum radio quasars (FSRQs), the most powerful jets, manage to accelerate to high bulk Lorentz factor, as observed in the radio.
Dimitrios Giannios +2 more
openaire +3 more sources
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 +2 more
wiley +1 more source
MOJAVE. XVII. Jet Kinematics and Parent Population Properties of Relativistically Beamed Radio-loud Blazars [PDF]
Astrophysical Journal, 2019 We present results from a parsec-scale jet kinematics study of 409 bright radio-loud active galactic nuclei (AGNs) based on 15 GHz Very Long Baseline Array (VLBA) data obtained between 1994 August 31 and 2016 December 26 as part of the 2 cm VLBA survey ...
M. Lister +12 more
semanticscholar +1 more source
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 +3 more
wiley +1 more source
WIREs Data Mining and Knowledge Discovery, Volume 12, Issue 5, September/October 2022., 2022 This work presents a text‐mining‐based scientometric analysis of the scientific output in the last three decades regarding the use of artificial intelligence and machine learning in the fields of astronomy and astrophysics. Abstract Since the beginning of the 21st century, the fields of astronomy and astrophysics have experienced significant growth at ...
José‐Víctor Rodríguez +2 more
wiley +1 more source
General Physical Properties of Fermi Blazars
The Astrophysical Journal Supplement Series, 2023 We study the general physical properties of Fermi blazars using the Fermi fourth source catalog data (4FGL-DR2). The quasi-simultaneous multiwavelength data of Fermi blazars are fitted by using the one-zone leptonic model to obtain some physical ...
Yongyun Chen +8 more
doaj +1 more source