Results 91 to 100 of about 13,882 (205)
Sex differences in cerebral pulsatility and damping: A 4D flow MRI study
Experimental Physiology, Volume 111, Issue 2, Page 568-579, 1 February 2026.Abstract Cerebral pulsatility is a potential marker of cerebrovascular health, yet little is understood about sex differences in cerebral pulsatility with age, especially within different cerebral arteries. Additionally, cerebral damping can blunt cerebral pulsatility and might decline with age.
Sarean Harmoni A. Gaynor‐Metzinger +14 more
wiley +1 more source
Controlling the chaos and bifurcations of a discrete prey-predator model
AIMS MathematicsIn this paper, we explore the existence of fixed points, local dynamics at fixed points, bifurcations and chaos of a discrete prey-predator fishery model with harvesting.
A. Q. Khan +2 more
doaj +1 more source
Mathematical and Computational ApplicationsThis study investigates the dynamic behavior of an SIRS epidemic model in discrete time, focusing primarily on mathematical analysis. We identify two equilibrium points, disease-free and endemic, with our main focus on the stability of the endemic state.
Mohamed Cherif Belili +3 more
doaj +1 more source
Economic integration and agglomeration in a customs union in the presence of an outside region [PDF]
, 2012 New Economic Geography (NEG) models do not typically account for the presence of regions other than the ones involved in the integration process. We explore such a possibility in a Footloose Entrepreneur (FE) model aiming at studying the stability ...
Commendatore, Pasquale +3 more
core
, 2018 We introduce the threshold $q$-voter opinion dynamics where an agent, facing a binary choice, can change its mind when at least $q_0$ amongst $q$ neighbors share the opposite opinion.
Anteneodo, Celia, Vieira, Allan R.
core +1 more source
Dynamics analysis for a discrete dynamic competition model
Advances in Difference Equations, 2019 In this paper, the dynamics of a discrete market share attraction model are investigated. It shows that the system can undergo flip bifurcation and chaos.
Xiuqin Yang +3 more
doaj +1 more source
MathematicsThis study investigates a class of two-dimensional, two-parameter squared discrete dynamical systems. It determines the conditions for local stability at the fixed points for these proposed systems.
Limei Liu, Xitong Zhong
doaj +1 more source
The Chaos Dynamic of Multiproduct Cournot Duopoly Game with Managerial Delegation
Discrete Dynamics in Nature and Society, 2014 Although oligopoly theory is generally concerned with the single-product firm, what is true in the real word is that most of the firms offer multiproducts rather than single products in order to obtain cost-saving advantages, cater for the diversity of ...
Fang Wu, Junhai Ma
doaj +1 more source
Bifurcation of a heterodimensional cycle with weak inclination flip
Discrete & Continuous Dynamical Systems - B, 2012 Local moving frame is constructed to analyze the bifurcation of a heterodimensional cycle with weak inclination flip in $\mathbb{R}^4$. Under some generic hypotheses, the existence conditions for the heteroclinic orbit, $1$-homoclinic orbit, $1$-periodic orbit and two-fold or three-fold $1$-periodic orbit are given, respectively.
Zhiqin Qiao, Deming Zhu, Qiuying Lu
openaire +1 more source
Codimension one and codimension two bifurcations analysis of discrete mussel-algae model
AIMS MathematicsIn this paper, a continuous mussel-algae model was discretized using the explicit Euler method, yielding a discrete mussel-algae interaction model. Within this work, the stability and bifurcations of a discrete mussel-algae model were studied. First, the
Qingkai Xu, Chunrui Zhang, Xingjian Wang
doaj +1 more source