Results 101 to 110 of about 675,673 (375)

Investigation of quasi-periodic varaiations in hard X-rays of solar flares

open access: yes, 2009
The aim of the present paper is to use quasi-periodic oscillations in hard X-rays (HXRs) of solar flares as a diagnostic tool for investigation of impulsive electron acceleration.
A. Asai   +27 more
core   +1 more source

On Stability of Differential Systems with Noninstantaneous Impulses

open access: yes, 2015
A new class of impulsive differential equations with noninstantaneous fixed time impulses is considered. Uniform stability and uniform asymptotic stability of solutions of the system have been established by employing piecewise Lyapunov functions.
Anju Sood, S. Srivastava
semanticscholar   +1 more source

Genetic Modifiers of Parkinson's Disease: A Case–Control Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the associations of LRRK2 p.G2019S, GBA1 p.N409S, polygenic risk scores (PRS), and APOE E4 on PD penetrance, risk, and symptoms. Methods We conducted a US‐based observational case–control study using data from the 23andMe Inc. and Fox Insight Genetic Substudy (FIGS) databases.
Matthew J. Kmiecik   +15 more
wiley   +1 more source

Averaging approach to phase coherence of uncoupled limit-cycle oscillators receiving common random impulses

open access: yes, 2008
Populations of uncoupled limit-cycle oscillators receiving common random impulses show various types of phase-coherent states, which are characterized by the distribution of phase differences between pairs of oscillators.
A. Lasota   +10 more
core   +1 more source

Exploring Nasal Structural‐Microbial Interactions in Multiple Sclerosis‐Associated Olfactory Impairment

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Olfactory dysfunction is frequently observed in patients with multiple sclerosis (MS); however, its underlying mechanisms remain poorly understood. To date, no studies have directly examined the nasal mucosal microbiota in MS. This study aimed to explore potential relationships among olfactory function, nasal microbiota composition,
Zidan Gao   +5 more
wiley   +1 more source

Characteristics of Cerebral Palsy in the Midwestern US

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cerebral palsy (CP) is the most common lifelong motor disability worldwide. Yet, data is limited on how CP manifests in the US. Our objective was to characterize and determine factors affecting functional outcomes in a large population of young people with CP in the Midwestern US.
Susie Kim   +6 more
wiley   +1 more source

Existence of solutions for impulsive neutral functional differential equations with multiple delays

open access: yesElectronic Journal of Differential Equations, 2008
In this paper an existence result for initial value problems for first order impulsive neutral functional differential equations with multiple delay is proved under weak conditions.
Mustapha Lakrib
doaj  

On the existence and exponential attractivity of a unique positive almost periodic solution to an impulsive hematopoiesis model with delays

open access: yes, 2015
In this paper, a generalized model of hematopoiesis with delays and impulses is considered. By employing the contraction mapping principle and a novel type of impulsive delay inequality, we prove the existence of a unique positive almost periodic ...
Anh, Trinh Tuan   +2 more
core   +1 more source

NERVE IMPULSE [PDF]

open access: yesThe Journal of Nervous and Mental Disease, 1904
n ...
openaire   +1 more source

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