Results 91 to 100 of about 2,468,981 (349)
Impulsive fractional differential inclusions with infinite delay
Electronic Journal of Differential Equations, 2013 In this article, we apply Bohnenblust-Karlin's fixed point theorem to prove the existence of mild solutions for a class of impulsive fractional equations inclusions with infinite delay. An example is given to illustrate the theory.
Khalida Aissani, Mouffak Benchohra
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Dynamic of a nonautonomous two-species impulsive competitive system with infinite delays
Open Mathematics, 2019 In this paper, we consider a nonautonomous two-species impulsive competitive system with infinite delays. By the impulsive comparison theorem and some mathematical analysis, we investigate the permanence, extinction and global attractivity of the system,
He Mengxin, Li Zhong, Chen Fengde
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective The cervical spinal cord (cSC) is highly relevant to clinical dysfunction in multiple sclerosis (MS) but remains understudied using quantitative magnetic resonance imaging (MRI). We assessed magnetization transfer ratio (MTR), a semi‐quantitative MRI measure sensitive to MS‐related tissue microstructural changes, in the cSC and its ...
Lisa Eunyoung Lee +26 more
wiley +1 more source
On the stability of impulsive functional differential equations with infinite delays [PDF]
Mathematical Methods in the Applied Sciences, 2014 In this paper, the stability problem of impulsive functional differential equations with infinite delays is considered. By using Lyapunov functions and the Razumikhin technique, some new theorems on the uniform stability and uniform asymptotic stability are obtained. The obtained results are milder and more general than several recent works.
Caraballo Garrido, Tomás +3 more
openaire +3 more sources
Correlation Between Irisin and Cognitive Functions in Alzheimer Dementia
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective The myokine irisin, a recent positive mediator of exercise in the brain, shows neuroprotective functions against Alzheimer's disease (AD). The association between irisin and cognition has never been explored in a biologically defined cohort of patients.
Patrizia Pignataro +12 more
wiley +1 more source
Zero-Delay Rate Distortion via Filtering for Vector-Valued Gaussian Sources
, 2018 We deal with zero-delay source coding of a vector-valued Gauss-Markov source subject to a mean-squared error (MSE) fidelity criterion characterized by the operational zero-delay vector-valued Gaussian rate distortion function (RDF).
Charalambous, Charalambos D. +2 more
core +1 more source
Permanence of predator-prey system with infinite delay
Electronic Journal of Differential Equations, 2004 In this paper we consider a predator-prey system with periodic coefficients and infinite delay, in which the prey has a history that takes them through two stages, immature and mature.
Jingan Cui, Yonghong Sun
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Spinal muscular atrophy (SMA) significantly impacts motor function. This study aimed to assess the persistent burden and unmet needs among currently treated patients with SMA and their caregivers. Methods Two complementary web‐based surveys were distributed in August 2024 among patients with SMA and their caregivers.
Julie A. Parsons +8 more
wiley +1 more source
Linear Rotary Optical Delay Lines
, 2014 I present several classes of analytical and semi-analytical solutions for the design of high-speed rotary optical delay lines that use a combination of stationary and rotating curvilinear reflectors.
Skorobogatiy, Maksim
core +1 more source
Electronic 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
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