Results 111 to 120 of about 10,406 (269)

Location‐Specific Hematoma Volume Predicts Early Neurological Deterioration in Supratentorial ICH

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Early neurological deterioration (END) adversely affects outcomes in patients with intracerebral hemorrhage (ICH). This study aimed to determine the location‐specific hematoma volumes for END in supratentorial ICH patients. Methods We retrospectively analyzed supratentorial ICH patients presenting from two prospective cohorts.
Zuoqiao Li   +10 more
wiley   +1 more source

On some remarkable positive polynomial operators of approximation.

open access: yesJournal of Numerical Analysis and Approximation Theory, 1999
Summary: In this paper we investigate new approximation properties of a Bernstein type operator, depending on two real parameters \(c\) and \(d\) \((0\leq c\leq d)\), introduced by the first author in [Stud. Univ. Babeş-Bolyai, Ser. Math.-Phys. 14, No. 2, 31--44 (1969; Zbl 0205.36602)].
D. D. Stancu, A. Vernescu
openaire   +3 more sources

Clinical Validation of Plasma p‐217tau in Neurological Diseases

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma p‐217tau is a minimally invasive but specific biomarker for diagnosing Alzheimer's disease (AD). However, its disease specificity remains to be clinically evaluated. We validated the reliability of the p‐217tau biomarker in 12 other neurological diseases.
Takeshi Kawarabayashi   +13 more
wiley   +1 more source

Predictive Ability of Plasma p‐tau217 for β‐Amyloid Status: A Prospective Multicenter Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma tau phosphorylated at threonine 217 (p‐tau217) measured with fully automated platforms has shown high accuracy for Alzheimer's disease (AD) diagnosis, but real‐world multicenter data remain limited. We aimed to validate the diagnostic performance of p‐tau217 for identifying AD pathology in a real‐world multicenter cohort ...
Miquel Massons   +33 more
wiley   +1 more source

High order approximation theory for Banach space valued functions

open access: yesJournal of Numerical Analysis and Approximation Theory, 2017
Here we study quantitatively the high degree of approximation of sequences of linear operators acting on Banach space valued di§erentiable functions to the unit operator. These operators are bounded by real positive linear companion operators.
George A. Anastassiou
doaj   +2 more sources

The order of approximation by positive linear operators

open access: yesTohoku Mathematical Journal, 1988
A quantitative version of a result obtained by the author [Math. Z. 194, 397-404 (1987; Zbl 0596.41036)], is presented. Some further results and applications concerned with quantification of convergence of nets of positive operators are derived.
openaire   +2 more sources

Comprehensive Assessment of Arterial, Tissue, and Venous Collaterals for Evaluating the Infarct Growth Rate: The Multimodal Collateral Score

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Collaterals are crucial factors that influence the infarct growth rate (IGR). We aimed to determine whether a comprehensive multimodal collateral score (MCS), incorporating collateral assessment at the arterial, tissue, and venous levels, is associated with functional independence and provides incremental prognostic value over ...
Giorgio Busto   +12 more
wiley   +1 more source

Pointwise approximation by a Stancu variant of Durrmeyer-Schurer operators

open access: yesJournal of Inequalities and Applications
In the present paper, we introduce a kind of Stancu variant of Durrmeyer-Schurer operators which includes non-negative real parameters α and β, and obtain the direct and converse results of approximation by the operators.
Jiang Bing
doaj   +1 more source

Approximation by a new Stancu variant of generalized (λ,μ)-Bernstein operators

open access: yesAlexandria Engineering Journal
The primary objective of this work is to explore various approximation properties of Stancu variant generalized (λ,μ)-Bernstein operators. Various moment estimates are analyzed, and several aspects of local direct approximation theorems are investigated.
Qing-Bo Cai   +3 more
doaj   +1 more source

Mixed conformable fractional approximation by sublinear operators [PDF]

open access: yes, 2018
Here we consider the approximation of functions by positive sublinear operators with applications to a large variety of Max- Product operators under mixed conformable fractional differ-entiability. These are examples of positive sublinear operators.
Anastassiou, George A.
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