Results 41 to 50 of about 919 (260)

Positive Periodic Solutions of a Neutral Impulsive Predator-Prey Model

open access: yesDiscrete Dynamics in Nature and Society, 2015
We investigate a ratio-dependent predator-prey model with Holling type III functional response based on system of neutral impulsive differential equations.
Guirong Liu, Xiaojuan Song
doaj   +1 more source

Stochastic Locomotion Emerging From Body–Environment Interactions in a Mexican Jumping Bean–Inspired Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
Inspired by the Mexican jumping bean, this study presents a centimeter‐scale, electronics‐free robot that merges principles from both the animal and plant kingdoms. A thermo‐responsive actuator mimicking larval motion, enclosed within a uniquely shaped plant‐seed‐inspired shell, generates jumping, rolling, flipping, sliding, and climbing through ...
Ragesh Chellattoan   +3 more
wiley   +1 more source

Lipschitz stability of impulsive functional-differential equations [PDF]

open access: yesThe ANZIAM Journal, 1999
AbstractAn initial value problem is considered for impulsive functional-differential equations. The impulses occur at fixed moments of time. Sufficient conditions are found for Lipschitz stability of the zero solution of these equations. An application in impulsive population dynamics is also discussed.
Bainov, D. D., Stamova, I. M.
openaire   +2 more sources

Second-Order Impulsive Differential Equations with Functional Initial Conditions on Unbounded Intervals

open access: yesJournal of Function Spaces and Applications, 2013
We present some results on the existence of solutions for second-order impulsive differential equations with deviating argument subject to functional initial conditions.
Luigi Muglia, Paolamaria Pietramala
doaj   +1 more source

Executive Functioning as a Pathway Between Social Skills and Psychopathology: The Moderating Role of Autism Diagnosis

open access: yesAutism Research, EarlyView.
ABSTRACT Internalizing and externalizing problems are highly prevalent among children and adolescents, with higher rates observed particularly among those with neurodevelopmental disorders. Previous studies have identified deficits in social competence and executive functioning (EF) as predictive factors of internalizing and externalizing problems, and
Samina I. Ansari   +3 more
wiley   +1 more source

Stability Analysis of Impulsive Stochastic Functional Differential Equations with Delayed Impulses via Comparison Principle and Impulsive Delay Differential Inequality

open access: yesAbstract and Applied Analysis, 2014
The problem of stability for nonlinear impulsive stochastic functional differential equations with delayed impulses is addressed in this paper. Based on the comparison principle and an impulsive delay differential inequality, some exponential stability ...
Pei Cheng, Fengqi Yao, Mingang Hua
doaj   +1 more source

Single‐subject designs in character education: Methods for rigorous, contextual, and practitioner‐led research

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Character education research is often constrained by blunt methodological tools. Surveys capture breadth without depth; case studies offer richness but lack replicability; and randomised controlled trials (RCTs), though indispensable at the policy level, are costly, disruptive and ill‐suited to everyday practice with individual pupils.
Shane McLoughlin
wiley   +1 more source

Existence Results for Second-Order Impulsive Neutral Functional Differential Equations with Nonlocal Conditions

open access: yesDiscrete Dynamics in Nature and Society, 2009
The existence of mild solutions for second-order impulsive semilinear neutral functional differential equations with nonlocal conditions in Banach spaces is investigated.
Meili Li, Chunhai Kou
doaj   +1 more source

Existence, uniqueness and stability results of impulsive stochastic semilinear neutral functional differential equations with infinite delays

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
This article presents the results on existence, uniqueness and stability of mild solutions of impulsive stochastic semilinear neutral functional differential equations without a Lipschitz condition and with a Lipschitz condition. The results are obtained
Annamalai Anguraj, A. Vinodkumar
doaj   +1 more source

High Cell Density Cultivation of HEK293 Cells Using a 2L Membrane‐Stirred Bioreactor

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT The use of perfusion systems for the continuous cultivation of animal cells at high cell density (HCD) for the production of recombinant proteins, viruses, and viral vectors has many advantages. Besides an enhancement of volumetric productivity and high cell viability, the product quality can be improved through a steady‐state environment ...
Lennart Jacobtorweihe   +5 more
wiley   +1 more source

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