Results 41 to 50 of about 9,207,934 (317)

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 more
wiley   +1 more source

Christoffel Functions for Weights with Jumps [PDF]

open access: yesConstructive Approximation, 2014
Let for a natural number \(n\) the set of all polynomials of degree at most \(n\) be denoted by \({\mathbf P}_n\) and let \(\mu\) be a nonnegative Borel measure on \({\mathbb R}\) with infinite support \(S\). Given \(n\in {\mathbb N}\), the Christoffel function associated with \(\mu\) is defined as \[ \lambda_n(\mu,z)=\min_{P\in {\mathbf P}_n,\,P(z)=1}\
Nevai Paul, Totik Vilmos
openaire   +4 more sources

Design and Complex Dynamics of Potra–Pták-Type Optimal Methods for Solving Nonlinear Equations and Its Applications

open access: yesMathematics, 2019
In this paper, using the idea of weight functions on the Potra−Pták method, an optimal fourth order method, a non optimal sixth order method, and a family of optimal eighth order methods are proposed. These methods are tested on some numerical
Prem B. Chand   +3 more
doaj   +1 more source

A closed form for the Stress Intensity Factor of a small embedded square-like flaw

open access: yesFracture and Structural Integrity, 2020
In the present work, the stress intensity factor (SIF) of a small embedded square-like flaw is calculated by means of a procedure based on the Oore-Burns integral.
Paolo Livieri, Fausto Segala
doaj   +1 more source

One-dimensional adaptive grid generation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
In this work, we give an adaptive grid generation method which allows a single point to be added in the regions of large variation. This method uses a quadrature rule as a weight function.
Ahmed M. M. Khodier, Adel Y. Hassan
doaj   +1 more source

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan   +3 more
wiley   +1 more source

On a Problem Concerning the Weight Functions

open access: yesEuropean Journal of Combinatorics, 2002
Let \(X\) be a finite set with \(n\) elements. A function \(f: X\to\mathbb{R}\) such that \(\sum_{x\in X} f(x)\geq 0\) is called an \(n\)-weight function. \textit{N. Manickam} and \textit{N. M. Singhi} [J. Comb. Theory, Ser. A 46, 91-103 (1988; Zbl 0645.05023)] conjectured the following: if \(d\) is a positive integer and \(f\) is an \(n\)-weight ...
openaire   +3 more sources

A class of orthogonal polynomials of a new type

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
The purpose of this paper is to study a class of polynomials Fnm(x,λ,ν) associated with a class of m differential equations, where λ is fixed, n is a variable parameter, m is fixed positive integer and ν is a non-negative integer
M. Dutta, Kanchan Prabha Manocha
doaj   +1 more source

Provider and Parent Perspectives on Prioritizing the “Asking and Monitoring” Pediatric Cancer Psychosocial Standards of Care

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Standards for Psychosocial Care for Children with Cancer and Their Families (“Standards”) are evidence‐based guidelines for psychosocial care in pediatric oncology. Care related to the three “Asking and Monitoring” Standards—Assessment of Psychosocial Needs, Assessment of Financial Needs, and Monitoring Neurocognitive Problems ...
Julia B. Tager   +8 more
wiley   +1 more source

Weighted means and weighting functions

open access: yesKybernetika, 2006
Summary: We present some properties of mixture and generalized mixture operators with special stress on their monotonicity. We introduce new sufficient conditions for weighting functions to ensure the monotonicity of the corresponding operators. However, mixture operators, generalized mixture operators neither quasi-arithmetic means weighted by a ...
Mesiar, R. (Radko), Špirková, J.
openaire   +3 more sources

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