Results 201 to 210 of about 51,771 (253)

Anorectal Dysfunction in Systemic Sclerosis: Clinical Phenotypes and Functional Patterns

open access: yesArthritis Care &Research, EarlyView.
Objective The aim of this study was to characterize specific physiologic defects in anorectal dysfunction in systemic sclerosis (SSc) using anorectal manometry (ARM), evaluate associations with gastrointestinal (GI) and extraintestinal clinical phenotypes, and explore potential serologic markers for risk stratification.
Timothy Kaniecki   +6 more
wiley   +1 more source

Multivariate simultaneous approximation

Constructive Approximation, 2002
Using convolution techniques, the Fourier transform, and complex analysis, theorems of Jackson type are given, for the simultaneous approximation of a function of class \(C^m\) and its partial derivatives, by a polynomial and the corresponding partial derivatives.
L Bos, N Levenberg
exaly   +4 more sources

Simultaneous Polynomial Approximation

SIAM Journal on Mathematical Analysis, 1993
The authors prove the approximation theorem on simultaneous approximation of \(f\in C^ s[- 1,1]\) and its derivatives of order \(j\), \(0\leq j\leq s\), by polynomials of degree \(n\) and their derivatives which has filled the gap between Timan-Trigub's type theorem and the classical norm estimate of the Jackson type.
Ditzian, Z.   +2 more
openaire   +2 more sources

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