Results 91 to 100 of about 2,515,351 (324)

On Optimal Zero-Delay Coding of Vector Markov Sources

open access: yes, 2014
Optimal zero-delay coding (quantization) of a vector-valued Markov source driven by a noise process is considered. Using a stochastic control problem formulation, the existence and structure of optimal quantization policies are studied.
Linder, Tamás, Yüksel, Serdar
core   +1 more source

Stability in functional-differential equations with infinite delay

open access: yesTohoku Mathematical Journal, 1985
The purpose of this paper is to discuss the (uniform) asymptotic stability of a solution of functional differential equations with infinite delay by using the method of Lyapunov-Razumikhin type. To do this, we shall take the following approach: First we decompose a given equation with infinite delay as a sum of an equation with finite delay and the ...
openaire   +2 more sources

Refractory Status Epilepticus Treated With Bilateral Pulvinar Deep Brain Stimulation—A Case Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT New‐onset refractory status epilepticus (NORSE) arises without an identifiable cause or prior epilepsy history, with a 16%–27% mortality rate and significant long‐term neurological sequelae. Neuromodulation such as deep brain stimulation (DBS) targeting the anterior and centromedian thalamic nuclei has shown promise when the traditional ...
Mengxuan Tang   +16 more
wiley   +1 more source

Lie group classification of first-order delay ordinary differential equations

open access: yes, 2017
A group classification of first-order delay ordinary differential equation (DODE) accompanied by an equation for delay parameter (delay relation) is presented.
Dorodnitsyn, Vladimir A.   +3 more
core   +1 more source

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

Approximate controllability of abstract impulsive fractional neutral evolution equations with infinite delay in Banach spaces

open access: yesElectronic Journal of Differential Equations, 2013
In this article, we study the approximate controllability of impulsive abstract fractional neutral evolution equations in Banach spaces. The main results are obtained by using Krasnoselkii's fixed point theorem, fractional calculus and methods of ...
Dimplekumar N. Chalishajar   +2 more
doaj  

Controllability of Neutral Fractional Functional Equations with Impulses and Infinite Delay

open access: yesAbstract and Applied Analysis, 2013
We examine the controllability problem for a class of neutral fractional integrodifferential equations with impulses and infinite delay. More precisely, a set of sufficient conditions are derived for the exact controllability of nonlinear neutral ...
R. Ganesh   +4 more
doaj   +1 more source

Discovery and Targeted Proteomic Studies Reveal Striatal Markers Validated for Huntington's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Clinical trials for Huntington's disease (HD) enrolling persons before clinical motor diagnosis (CMD) lack validated biomarkers. This study aimed to conduct an unbiased discovery analysis and a targeted examination of proteomic biomarkers scrutinized by clinical validation. Methods Cerebrospinal fluid was obtained from PREDICT‐HD and
Daniel Chelsky   +8 more
wiley   +1 more source

An Upper Bound to Zero-Delay Rate Distortion via Kalman Filtering for Vector Gaussian Sources

open access: yes, 2017
We deal with zero-delay source coding of a vector Gaussian autoregressive (AR) source subject to an average mean squared error (MSE) fidelity criterion.
Charalambous, Charalambos D.   +3 more
core   +1 more source

Solution of differential equations with infinite delay via coupled fixed point [PDF]

open access: gold, 2022
Khadidja Mebarki   +4 more
openalex   +1 more source

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