Results 11 to 20 of about 883,811 (388)
Treatment planning with a 2.5 MV photon beam for radiation therapy
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi +5 more
wiley +1 more source
Volume staging for arteriovenous malformation SRS treatment using VMAT
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Volume staging involves dividing the target volume into smaller parts and treating each part separately. In this study, the feasibility of volume‐staged stereotactic radiosurgery (VS‐SRS) on a linear accelerator using volumetric modulated arc therapy (VMAT) and a frameless patient positioning system is investigated.
Claudia Mendez, Ermias Gete
wiley +1 more source
The impact on education of Astronomical Olympiads and the International Olympiad on Astronomy and Astrophysics [PDF]
EPJ Web of Conferences, 2019 Astronomical Olympiads and similar competitions for highschool students have been run in some countries for more than half a century, and last year marked the tenth anniversary of the largest such competition with global reach, the International Olympiad
Stachowski Greg, Sule Aniket
doaj +1 more source
Determining Pre-Service Teachers’ Astronomy-Related Self-Efficacy Belief Levels
Center for Educational Policy Studies Journal, 2023 This study aims to reveal the astronomy-related self-efficacy beliefs of pre-service teachers studying science education, primary school education, and social studies education programmes.
Ebru Ezberci Cevik, Oktay Bektaş
doaj +1 more source
Herschel Space Observatory - An ESA facility for far-infrared and submillimetre astronomy [PDF]
, 2010 Herschel was launched on 14 May 2009, and is now an operational ESA space observatory o ering unprecedented observational capabilities in the far-infrared and submillimetre spectral range 55 671 m.
G. Pilbratt +10 more
semanticscholar +1 more source
Gravitational-wave physics and astronomy in the 2020s and 2030s
Nature Reviews Physics, 2021 The 100 years since the publication of Albert Einstein’s theory of general relativity saw significant development of the understanding of the theory, the identification of potential astrophysical sources of sufficiently strong gravitational waves and ...
M. Bailes +33 more
semanticscholar +1 more source
THE ROLE OF ASTRONOMY IN ROMANIAN EDUCATION [PDF]
Romanian Review of Geographical Education, 2018 Despite the interest, curiosity and the enthusiasm of the large public for Astronomy as a scientific discipline, it is absent from the current Romanian curriculum. We present here the results of two surveys that involve parents and
DANA FICUȚ-VICAȘ
doaj +1 more source
Interferometry and Synthesis in Radio Astronomy [PDF]
, 2017 Preface to the Second Edition. Preface to the First Edition. Introduction and Historical Review. Introductory Theory of Interferometry and Synthesis Imaging. Analysis of the Interferometer Response. Geometric Relationships and Polarimetry.
Jacob Baars
semanticscholar +1 more source
Bilby: A User-friendly Bayesian Inference Library for Gravitational-wave Astronomy [PDF]
Astrophysical Journal Supplement Series, 2018 Bayesian parameter estimation is fast becoming the language of gravitational-wave astronomy. It is the method by which gravitational-wave data is used to infer the sources’ astrophysical properties. We introduce a user-friendly Bayesian inference library
G. Ashton +20 more
semanticscholar +1 more source
Development and validation of an astronomy self-efficacy instrument for understanding and doing
Physical Review Physics Education Research, 2022 This paper presents a new astronomy self-efficacy instrument, composed of two factors; one relating to learning astronomy content, which we call astronomy personal self-efficacy, and the other relating to the use of astronomical instrumentation ...
Rachel Freed +3 more
doaj +1 more source