Results 71 to 80 of about 295,128 (259)

Chaotic dynamics of the fractional order Schnakenberg model and its control

open access: yesMathematics in Applied Sciences and Engineering, 2023
The Schnakenberg model is thought to be the Caputo fractional derivative. In order to create caputo fractional differential equations for the Schnakenberg model, a discretization process is first used.
Md. Jasim Uddin, S. M. Sohel Rana
doaj   +1 more source

Control of dynamical instability in semiconductor quantum nanostructures diode lasers: role of phase-amplitude coupling

open access: yes, 2013
We numerically investigate the complex nonlinear dynamics for two independently coupled laser systems consisting of (i) mutually delay-coupled edge emitting diode lasers and (ii) injection-locked quantum nano-structures lasers.
Grillot, Frédéric, Kumar, Pramod
core   +1 more source

Bilateral Transcranial Doppler Monitoring During Neonatal Cardiac Surgery; Guidance for Clinical and Scientific Use

open access: yesPediatric Anesthesia, EarlyView.
ABSTRACT Introduction Neonates undergoing cardiac surgery face a high risk of neurological injury and neurodevelopmental complications. Transcranial Doppler monitoring is used and validated in adults to measure cerebral blood flow and can provide valuable insights into cerebral perfusion in neonates.
B. V. Martherus   +11 more
wiley   +1 more source

Empirical assessment of bifurcation regions within new Keynesian models [PDF]

open access: yes
As is well known in systems theory, the parameter space of most dynamic models is stratified into subsets, each of which supports a different kind of dynamic solution.
Barnett, William A., Duzhak, Evgeniya A.
core   +4 more sources

Discrete Leslie's model with bifurcations and control

open access: yesAIMS Mathematics, 2023
We explored a local stability analysis at fixed points, bifurcations, and a control in a discrete Leslie's prey-predator model in the interior of $ \mathbb{R}_+^2 $.
A. Q. Khan, Ibraheem M. Alsulami
doaj   +1 more source

Connecting period-doubling cascades to chaos [PDF]

open access: yes, 2010
The appearance of infinitely-many period-doubling cascades is one of the most prominent features observed in the study of maps depending on a parameter. They are associated with chaotic behavior, since bifurcation diagrams of a map with a parameter often
Sander, Evelyn, Yorke, James A.
core  

Probability of local bifurcation type from a fixed point: A random matrix perspective

open access: yes, 2005
Results regarding probable bifurcations from fixed points are presented in the context of general dynamical systems (real, random matrices), time-delay dynamical systems (companion matrices), and a set of mappings known for their properties as universal ...
A. Edelman   +38 more
core   +1 more source

“I'm a Good Guy Who Deserves Better, Yet Nobody Wants to Give me Better”: The Accounts of Nice Guys

open access: yesSymbolic Interaction, EarlyView.
Within Western popular culture and online discourse, a “Nice Guy” is someone who enacts niceness for which they believe they are owed, deserving of, or entitled to something in return—especially the romantic or sexual attention of women. In this study, we examine the use of accounts in personal narratives told in an anonymous online discussion forum ...
Brooke Weinmann, Dennis D. Waskul
wiley   +1 more source

Some Bifurcations of Codimensions 1 and 2 in a Discrete Predator–Prey Model with Non-Linear Harvesting

open access: yesMathematics
This paper delves into the dynamics of a discrete-time predator–prey system. Initially, it presents the existence and stability conditions of the fixed points.
Ming Liu, Linyi Ma, Dongpo Hu
doaj   +1 more source

Classical and Quantum Gravity in 1+1 Dimensions, Part III: Solutions of Arbitrary Topology

open access: yes, 1996
All global solutions of arbitrary topology of the most general 1+1 dimensional dilaton gravity models are obtained. We show that for a generic model there are globally smooth solutions on any non-compact 2-surface.
Ashtekar A   +23 more
core   +1 more source

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