Results 91 to 100 of about 323,447 (317)
On the minimal set for counterexamples to the local-global principle [PDF]
We prove that only for powers of 2 and 3 could occur counterexamples to the local-global divisibility principle for elliptic curves defined over the rationals. For we refine our previous criterion for the validity of the principle. We also give an example that shows that the assumptions of our criterion are necessary.
arxiv
Averaging: An empirical validity criterion for magnitude estimation [PDF]
David J. Weiss
openalex +1 more source
The validity of Bohm’s sheath criterion in rf discharges [PDF]
K.‐U. Riemann
openalex +1 more source
Abstract Purpose Training deep learning dose prediction models for the latest cutting‐edge radiotherapy techniques, such as AI‐based nodal radiotherapy (AINRT) and Daily Adaptive AI‐based nodal radiotherapy (DA‐AINRT), is challenging due to limited data.
Hui‐Ju Wang+5 more
wiley +1 more source
Reliability and validity of the French version of the global physical activity questionnaire
Background: The Global Physical Activity Questionnaire (GPAQ) has been used to measure physical activity (PA) and sedentary time in France, but no study has assessed its psychometric properties.
Fabien Rivière+5 more
doaj
IROC phantoms accurately detect MLC delivery errors
Abstract Purpose We evaluated the impact of random and whole‐bank multileaf collimator (MLC) delivery errors on dosimetric delivery accuracy in the Imaging and Radiation Oncology Core (IROC) phantom audits, as well as differences in delivery accuracy between the IROC phantom prescription and typical clinical fraction sizes.
Sharbacha S. Edward+5 more
wiley +1 more source
ROTEIRO DE AVALIAÇÃO DA CONSCIÊNCIA FONOLÓGICA (RACF) [PDF]
This paper aimed at assessing phonological awareness in elementary school children, in order to examine criterion validity evidences through comparing grades, and also to identify differences related to gender and age. Participants were 221 children aged
Boulhoça Suehiro, Adriana Cristina+1 more
doaj
The effect of multi‐leaf collimator leaf width on VMAT treatment plan quality
Abstract Background The advent of volumetric modulated arc therapy (VMAT) in radiotherapy has made it one of the most commonly used techniques in clinical practice. VMAT is the delivery of intensity modulated radiation therapy (IMRT) while the gantry is in motion, and existing literature has shown it has decreased treatment delivery times and the ...
Gregory Sadharanu Peiris+3 more
wiley +1 more source
Amenability criterions and critical probabilities in percolation [PDF]
A new proof of a Theorem of Nagnibeda and Pak on critical probabilities is given. The distinctive feature is to use a criterion of Folner which has been largely (and inexplicably) forgotten.
arxiv
A New Asymmetric Criterion for Cluster Validation [PDF]
In this paper a new criterion for clusters validation is proposed. Many stability measures to validate a cluster have been proposed such as Normalized Mutual Information. We propose a new criterion for clusters validation. The drawback of the common approach is discussed in this paper and then a new asymmetric criterion is proposed to assess the ...
Hosein Alizadeh+2 more
openaire +2 more sources