Results 111 to 120 of about 1,173,430 (270)
In vivo transit dosimetry methodology for whole breast intensity modulated radiation therapy
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background In vivo transit dosimetry using an electronic portal imaging device (EPID‐IVTD) is an important tool for verifying the accuracy of radiation therapy treatments. Despite its potential, the implementation of EPID‐IVTD in breast intensity modulated radiation therapy (IMRT) treatments has not yet been standardized, limiting its clinical
Lucia Zirone +8 more
wiley +1 more source
Reducts of structures and maximal-closed permutation groups [PDF]
arXiv, 2013 Answering a question of Junker and Ziegler, we construct a countable first order structure which is not omega-categorical, but does not have any proper non-trivial reducts, in either of two senses (model-theoretic, and group-theoretic). We also construct a strongly minimal set which is not omega-categorical but has no proper non-trivial reducts in the ...
arxiv
A Theoretical and Experimental Model for a Dust Devil [PDF]
, 1967 Albert Barcilon
openalex +1 more source
Development of a generic focal spot measurement method suitable for bore‐type linacs
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose In linear accelerators, deviations in the x‐ray focal spot position significantly affect the accuracy of radiation therapy. However, as the focal spot position in bore‐type linac systems such as the Radixact system, cannot be assessed using conventional methods, a new evaluation method is required.
Hidetoshi Shimizu +5 more
wiley +1 more source
Characterizing fragments of collection principle in set theory with model theoretic properties [PDF]
arXivWe prove some model theoretic equivalent forms of variants of collection principle in set theory on models of a very weak set theory.
arxiv
Theoretical modeling of Langmuir monolayers
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1999 To appear in Colloids and Surfaces A, Paper presented at the 9th International Conference on Surface and Colloid Science, Sofia, Bulgaria, 6-12 July ...
Friederike Schmid +2 more
openaire +3 more sources
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background Dual‐energy cone‐beam CT (DE‐CBCT) has become subject of recent interest due to the ability to produce virtual monoenergetic images (VMIs) with improved soft‐tissue contrast and reduced nonuniformity artifacts. However, efficient production and optimization of VMIs remains an under‐explored part of DE‐CBCT's application.
Andrew Keeler +4 more
wiley +1 more source
Theoretical Effect of Temperature on Threshold in the Hodgkin-Huxley Nerve Model [PDF]
, 1966 Richard Fitzhugh
openalex +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Introduction The use of radioactive materials in the United States has been tightly regulated by the Nuclear Regulatory Commission and other entities for many decades. In 2015, however, the Joint Commission began to require hospital‐based nuclear medicine departments to conduct shielding designs and evaluations for radioactive material areas ...
Michael Oumano +12 more
wiley +1 more source