Related Experiment Video
Updated: Jul 13, 2026

A Computational Method to Quantify Fly Circadian Activity
Published on: October 28, 2017
Theoretical models for chronotherapy: periodic perturbations in funnel chaos type
Juvencio Alberto Betancourt-Mar1, Jose Manuel Nieto-Villar
1Laboratorio UNE-SAS, Universidad del Noreste, Prol. Ave. Hidalgo 6315, Tampico, Tams., México. nolineal@spectroq.com
Abstract:
In this work, the Rössler system is used as a model for chrono therapy. We applied a periodic perturbation to the y variable to take the Rössler system from a chaotic behavior to a simple periodic one, varying the period and amplitude of forcing. Two types of chaos were considered, spiral and funnel chaos. As a result, the periodical windows reduced their areas as the funnel chaos character increased in the system. Funnel chaos, in this chrono therapy model, could be considered as a later state of a dynamical disease, more irregular and difficult to suppress.
Related Concept Videos
Properties of Laplace Transform-II
Time differentiation involves analyzing the rate of change of a function over time. Mathematically, it is the derivative of a function with respect to time. This concept can be likened to tracking...
Circadian Rhythms and Gene Regulation
Forced Oscillations
Pharmacodynamic Models: Link Model and Systems Pharmacodynamic Model
Discrete-Time Fourier Series
For a discrete-time periodic signal x[n]...
Chronopharmacokinetics: Time-Dependent Pharmacokinetics
Time-dependent pharmacokinetics refers to non-cyclical changes in drug rate processes over a period of time. It can lead to nonlinear pharmacokinetics, where the relationship between drug concentration and time is not proportional. Non-cyclical...
