Results 11 to 20 of about 5,156 (174)

Testing for Sufficient Follow-Up in Survival Data With a Cure Fraction. [PDF]

open access: yesBiom J
ABSTRACT In order to estimate the proportion of “immune” or “cured” subjects who will never experience failure, a sufficiently long follow‐up period is required. Several statistical tests have been proposed in the literature for assessing the assumption of sufficient follow‐up, meaning that the study duration is longer than the support of the survival ...
Yuen TP, Musta E.
europepmc   +2 more sources

Majors of Functions [PDF]

open access: yesOrder, 2017
A function \(f\) from the \(n\)-th power of \(A\) to \(B\) is called a minor of another function \(g\) from the \(m\)-th power of \(A\) to \(B\), or \(g\) is a major of \(f\), if \(f\) can be obtained from \(g\) by identification of arguments, permutation of arguments, or introduction or deletion of inessential arguments. The minor relation constitutes
Couceiro, Miguel, Lehtonen, Erkko
openaire   +3 more sources

Majorization and Spherical Functions [PDF]

open access: yesInternational Mathematics Research Notices, 2021
Abstract In this paper, we generalize a result of Cuttler, Greene, Skandera, and Sra that characterizes the majorization order on Young diagrams in terms of nonnegative specializations of Schur polynomials. More precisely, we introduce a generalized notion of majorization associated to an arbitrary crystallographic root system $\Phi ...
McSwiggen, Colin, Novak, Jonathan
openaire   +2 more sources

The functional Breuer–Major theorem [PDF]

open access: yesProbability Theory and Related Fields, 2019
Let $X=\{ X_n\}_{n\in \mathbb{Z}}$ be zero-mean stationary Gaussian sequence of random variables with covariance function $ρ$ satisfying $ρ(0)=1$. Let $φ:\mathbb{R}\to\mathbb{R}$ be a function such that $E[φ(X_0)^2]2$.
Nourdin, Ivan, Nualart, David
openaire   +4 more sources

Thyroid function in thalassaemia major. [PDF]

open access: yesArchives of Disease in Childhood, 1980
Serum concentrations of T4, T3, rT3, and TSH were measured by radioimmunoassay in 45 patients suffering from beta-thalassaemia. A TRH stimulation test was performed and the binding capacity of TBG and TBPA for T3 and T4 measured by reverse flow zone electrophoresis in a group of these patients.
DE LUCA, Filippo   +4 more
openaire   +3 more sources

Cognitive functioning in major depression – a summary [PDF]

open access: yesFrontiers in Human Neuroscience, 2009
The aim of the present paper is to summarize the research during the past decade regarding cognitive functioning in Major Depressive Disorder (MDD). Cognitive impairment in the acute phase of illness has been frequently reported. The findings are shown in different cognitive domains, such as executive functions, attention, memory and psychomotor speed.
Åsa Hammar, Åsa Hammar, Guro Årdal
openaire   +3 more sources

Isolated singularities of mappings with the inverse Poletsky inequality

open access: yesМатематичні Студії, 2021
The manuscript is devoted to the study of mappings with finite distortion, which have been actively studied recently. We consider mappings satisfying the inverse Poletsky inequality, which can have branch points.
E.A. Sevost'yanov
doaj   +1 more source

A new application of boundary integral behaviors of harmonic functions to the least harmonic majorant

open access: yesBoundary Value Problems, 2017
Our main aim in this paper is to obtain a new type of boundary integral behaviors of harmonic functions in a smooth cone. As an application, the least harmonic majorant of a nonnegative subharmonic function is also given.
Minghua Han, Jianguo Sun, Gaoying Xue
doaj   +1 more source

Cognitive function in major depression

open access: yesJournal of Affective Disorders, 1992
Forty patients with a major depressive episode were divided into equal endogenous and neurotic sub-groups using the Newcastle scale. They were all rated on the 17-item Hamilton scale and with a variety of neuropsychological tests. They were compared with 20 age- and education-matched control subjects.
Austin, Marie-Paule   +5 more
openaire   +4 more sources

On one rational integral operator of Fourier – Chebyshev type and approximation of Markov functions

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2020
The purpose of this paper is to construct an integral rational Fourier operator based on the system of Chebyshev – Markov rational functions and to study its approximation properties on classes of Markov functions. In the introduction the main results of
Pavel G. Patseika   +2 more
doaj   +1 more source

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