Results 91 to 100 of about 12,799 (220)
Redeeming desistance: From individual journeys to a social movement
Criminology, Volume 63, Issue 1, Page 5-25, February 2025.Abstract Early desistance research identified a key role for redemption scripts in the process of desisting from crime. This research emerged in an incredibly punitive environment at the turn of the century, when core beliefs about human redeemability were being challenged by popular and academic theories about incorrigible predators incapable of ...
Shadd Maruna
wiley +1 more source
Alternate Pacing of Border-Collision Period-Doubling Bifurcations [PDF]
arXiv, 2006 Unlike classical bifurcations, border-collision bifurcations occur when, for example, a fixed point of a continuous, piecewise $\mathcal{C}^{1}$ map crosses a boundary in state space. Although classical bifurcations have been much studied, border-collision bifurcations are not well understood. This paper considers a particular class of border-collision
arxiv
Mathematical Methods in the Applied Sciences, Volume 48, Issue 2, Page 2194-2223, 30 January 2025.The impact of predator‐driven fear on ecosystems is significant and can encompass both trophic (direct) and nontrophic (indirect) effects. Previous studies have shown that nontrophic fear effects have an important role in predator–prey dynamics. This study investigates the nontrophic fear effect on prey caused by generalist predators and explores ...
Anuj Kumar Umrao +2 more
wiley +1 more source
Classification of solitary wave bifurcations in generalized nonlinear Schrödinger equations [PDF]
arXiv, 2012 Bifurcations of solitary waves are classified for the generalized nonlinear Schr\"odinger equations with arbitrary nonlinearities and external potentials in arbitrary spatial dimensions. Analytical conditions are derived for three major types of solitary wave bifurcations, namely saddle-node bifurcations, pitchfork bifurcations and transcritical ...
arxiv
Unfolding a Codimension-Two, Discontinuous, Andronov-Hopf Bifurcation [PDF]
, 2008 We present an unfolding of the codimension-two scenario of the simultaneous occurrence of a discontinuous bifurcation and an Andronov-Hopf bifurcation in a piecewise-smooth, continuous system of autonomous ordinary differential equations in the plane. We find the Hopf cycle undergoes a grazing bifurcation that may be very shortly followed by a saddle ...
arxiv +1 more source
Slowed Response of Atlantic Meridional Overturning Circulation Not a Robust Signal of Collapse
Geophysical Research Letters, Volume 52, Issue 2, 28 January 2025.Abstract Using an idealized model of the Atlantic meridional overturning circulation (AMOC), we test whether changes in the statistical properties of an AMOC time series can reveal Critical Slowing Down (CSD) and serve as early warnings of an upcoming critical transition.
C. C. Zimmerman +3 more
wiley +1 more source
Bifurcation analysis of a discrete SIS model with bilinear incidence depending on new infection
Mathematical Biosciences and Engineering, 2013 A discrete SIS epidemic model with the bilinear incidence depending on the new infection is formulated and studied.The condition for the global stability of the disease free equilibrium is obtained.The existence of the endemic equilibrium and its ...
Hui Cao, Yicang Zhou, Zhien Ma
doaj +1 more source
Time Delay Effect on the Love Dynamical Model [PDF]
, 2011 We investigate the effect of time delay on the dynamical model of love. The local stability analysis proves that the time delay on the return function can cause a Hopf bifurcation and a cyclic love dynamics. The condition for the occurrence of the Hopf bifurcation is also clarified.
arxiv +1 more source
Asymptotics of Dynamical Saddle-node Bifurcations
Nelineinaya Dinamika, 2022 Dynamical bifurcations occur in one-parameter families of dynamical systems, when the parameter is slow time. In this paper we consider a system of two nonlinear differential equations with slowly varying right-hand sides. We study the dynamical saddle-node bifurcations that occur at a critical instant.
openaire +1 more source
A finding of the maximal saddle-node bifurcation for systems of differential equations
Journal of Differential Equations, 2023 A variational method is presented for directly finding the bifurcation point of nonlinear equations as the saddle-node point of the extended nonlinear Rayleigh quotient. The method is applied for solving an open problem on the existence of a maximal saddle-node bifurcation point for set of positive solutions of system equations with convex-concave type
openaire +2 more sources