Results 211 to 220 of about 47,514 (263)

Diffusion‐Weighted Imaging for the Evaluation of the Sacroiliac Joint in Pediatric Patients

open access: yesArthritis Care &Research, EarlyView.
Objective Maturational signal in the sacroiliac joint (SIJ) of skeletally immature youth is often misinterpreted as inflammation. Diagnostic tools that improve specificity are greatly needed. Apparent diffusion coefficient (ADC) values from diffusion‐weighted imaging (DWI), when used with standard imaging, may enhance diagnostic accuracy.
Michael L. Francavilla   +6 more
wiley   +1 more source

Radar-based inspiratory-to-expiratory time ratio estimation: a validation study. [PDF]

open access: yesSci Rep
Trần TT   +9 more
europepmc   +1 more source
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Equivalence Principle Measurements

General Relativity and Gravitation, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Equivalent invariant measures

Israel Journal of Mathematics, 1974
LetG be a finitely-generated group of non-singular measurable transformations of a measure space (X, β,p). FixA∈β withp(A)>0. A general technique for groups gives sufficient conditions for there to exist aG-invariant measure ν equivalent top with ν((A)=1. These conditions are phrased in terms of the growth behavior ofg→p(gB) forB∈β.
openaire   +2 more sources

Equivalent focal length measurements

SPIE Proceedings, 1999
Converting linear coordinates in the plane of the detector of an astronomical instrument to celestial coordinates involves in principle the equivalent focal length of the instrument. However, most methods in astrometry manage to reduce observations in a global manner without actually measuring a focal length.
Guy E. Artzner   +3 more
openaire   +1 more source

Equivalence-Scale Measurement

2004
This chapter is devoted to a presentation and discussion of the three main approaches to measuring equivalence scales which are the expert approach, the economic approach, and the survey approach. Most attention will be paid to the economic and to the survey approach since both are applied in this thesis.
openaire   +1 more source

Equivalence in Measurement

2001
This volume highlights research and conceptual insights into one of the most basic, and yet, perplexing research issues in management-handling and assessing the comparability of our measurement devices across groups and measures. One of the most consistently difficult concerns in management research over the past three decades has been trying to ...
openaire   +1 more source

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