Results 61 to 70 of about 2,435 (236)

Global Period-Doubling Bifurcation of Quadratic Fractional Second Order Difference Equation

Discrete Dynamics in Nature and Society, 2014
We investigate the local stability and the global asymptotic stability of the difference equation xn+1=αxn2+βxnxn-1+γxn-1/Axn2+Bxnxn-1+Cxn-1, n=0,1,… with nonnegative parameters and initial conditions such that Axn2+Bxnxn-1+Cxn-1>0, for all n≥0.
Senada Kalabušić, M. R. S. Kulenović, M. Mehuljić   +2 more
doaj   +1 more source

Stochastic Hopf–Hopf bifurcation of two-species discrete coupling logistic system with symbiotic interaction

Advances in Difference Equations, 2020
In this paper, stochastic Hopf–Hopf bifurcation of the discrete coupling logistic system with symbiotic interaction is investigated. Firstly, orthogonal polynomial approximation of discrete random function in the Hilbert spaces is applied to reduce the ...
Maosong Yang, Shaojuan Ma
doaj   +1 more source

Interventional therapies for chronic heart failure: An overview of recent developments

ESC Heart Failure, Volume 12, Issue 2, Page 1081-1094, April 2025.
Abstract Heart failure (HF), the final manifestation of most cardiovascular diseases, has become a major global health concern, affecting millions of individuals. Despite basic drug treatments, patients present with high morbidity and mortality rates. However, recent advancements in interventional therapy have shown promising results in improving the ...
Bingchen Guo, Si Shi, Yutong Guo, Jie Xiong, Bo Wang, Zengxiang Dong, Dianyu Gao, Yingfeng Tu   +7 more
wiley   +1 more source

Effect of neutral modes on the order of a transition

Comptes Rendus. Mécanique, 2020
Neutral modes related to spontaneous broken symmetries at the onset of a pattern-forming instability can strongly modify the nature of secondary instabilities of the pattern.
Fauve, Stéphan
doaj   +1 more source

Beyond political risk: Toward a holistic understanding of multinational enterprise resilience in the era of cascading crises

Global Strategy Journal, EarlyView.
Abstract Research Summary This article develops a conceptual framework for understanding multinational enterprise (MNE) resilience in the era of cascading crises. We define resilience as the MNE's capacity to absorb disruption, maintain or restore functioning, and reconfigure operations as conditions shift.
Gerard George, Chang Hoon Oh
wiley   +1 more source

Stability and Period-Doubling Bifurcation of Fractional-Order Commensal Symbiosis Model with Allee Effect

Fractal and Fractional
Differential equations with fractional order play an important role in modeling some natural phenomena. This paper investigates the dynamics of the fractional-order commensal symbiosis model with the Allee effect.
Mohammed Bakheet Almatrafi
doaj   +1 more source

Evaluation of a novel fetal echocardiography training programme in two tertiary care obstetric Centres

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Objectives Improving and maintaining high detection rates for major congenital heart disease (CHD) is a priority for successful prenatal anatomy screening programmes. The primary objective of this study was to evaluate the utility of on‐site multidimensional targeted training in fetal cardiac screening. Methods A prospective study evaluating a
Fiona Cody, Orla Franklin, Caoimhe Lynch, Zara Molphy, Patrick Dicker, Fergal Malone, Fionnuala M. Breathnach   +6 more
wiley   +1 more source

Broadband Mode Converter With Customizable Modal Ratio Leveraging Subwavelength Engineering for Advanced Multimode Silicon Photonics

Laser &Photonics Reviews, EarlyView.
This work introduces a customizable mode converter for multimode silicon photonics, enabling precise control over the conversion ratio between optical modes. The device operates across a broad wavelength range (1350–1700 nm) with 15 distinct conversion levels.
Raquel Fernández de Cabo, Alejandro Sánchez‐Sánchez, Paula Nuño Ruano, Roy Ronald Prosopio Galarza, Daniele Melati, Carlos Alonso‐Ramos, Aitor V. Velasco, David González‐Andrade   +7 more
wiley   +1 more source

Period-doubling bifurcation and chaos control in a discrete-time mosquito model [PDF]

Computational Ecology and Software, 2017
This article deals with the study of some qualitative properties of a discrete-time mosquito Model. It is shown that there exists period-doubling bifurcation for wide range of bifurcation parameter for the unique positive steady-state of given system. In
Qamar Din, Muhammad Asif Khan
doaj  

T(w)o Patch or Not T(w)o Patch: A Novel Biocontrol Model

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT A number of top‐down biocontrol models have been proposed where the introduced predators' efficacy is enhanced via the provision of additional food (AF). However, if the predator has a pest‐dependent monotone functional response, pest extinction is unattainable. In the current manuscript, we propose a model where a predator with pest‐dependent
Urvashi Verma, Aniket Banerjee, Rana D. Parshad   +2 more
wiley   +1 more source