Results 81 to 90 of about 62,585 (218)

Wave Mechanics of Ciliary Proteins: Quantum‐Enabled Sensing and Energy Transfer in the “Cellular Antenna”

open access: yesAggregate, Volume 7, Issue 6, June 2026.
This review surveys eukaryotic cilia as putative quantum‐enabled sensory and regulatory centers. It highlights their multifaceted roles in the cell, focuses on the nontrivial roles of quantum mechanics in their membrane and cytoskeletal proteins, and introduces the essential building blocks enabling quantum properties to survive in the warm, wet, and ...
Daniel L. Bilezikian   +5 more
wiley   +1 more source

A Data‐Driven Control Framework for HIV Infection Using Projection Recurrent Neural Networks and Singular Value Analysis

open access: yesEngineering Reports, Volume 8, Issue 6, June 2026.
The study introduces a model‐free data‐driven control strategy combining sliding mode control with a projection recurrent neural network to regulate HIV dynamics. The method eliminates dependence on mathematical models, ensures constrained optimal drug dosing, and robustly drives HIV states to a healthy equilibrium despite uncertainty. ABSTRACT In this
Ashkan Zarghami   +2 more
wiley   +1 more source

Zero-Hopf Bifurcations of 3D Quadratic Jerk System

open access: yesMathematics, 2020
This paper is devoted to local bifurcations of three-dimensional (3D) quadratic jerk system. First, we start by analysing the saddle-node bifurcation. Then we introduce the concept of canonical system.
Bo Sang, Bo Huang
doaj   +1 more source

The Role of Inducible Defence in Ecological Models: Effects of Nonlocal Intraspecific Competition

open access: yesStudies in Applied Mathematics, Volume 156, Issue 6, June 2026.
ABSTRACT Phenotypic plasticity significantly influences species interactions, especially via inducible defensive mechanisms in predator–prey dynamics. This work proposes and explores a predator–prey scenario whereby the prey species demonstrates inducible defence mechanisms against predators.
Sangeeta Saha   +2 more
wiley   +1 more source

Bifurcation Analysis and Sliding Mode Control of Chaotic Vibrations in an Autonomous System

open access: yesJournal of Applied Mathematics, 2014
We study the bifurcations and sliding mode control of chaotic vibrations in an autonomous system. More precisely, a Hopf bifurcation controller is designed so as to control the unstable subcritical Hopf bifurcation to the stable supercritical Hopf ...
Wenju Du   +5 more
doaj   +1 more source

Double Hopf Bifurcation in Microbubble Oscillators with Delay Coupling

open access: yesAdvances in Mathematical Physics, 2020
Using center manifold reduction methodswe investigate the double Hopf bifurcation in the dynamics of microbubble with delay couplingwith main attention focused on nonresonant double Hopf bifurcation.
Jinbin Wang, Rui Zhang, Lifenq Ma
doaj   +1 more source

Generic Hopf–Neĭmark–Sacker bifurcations in feed-forward systems [PDF]

open access: yes, 2008
We show that generic Hopf–Neĭmark–Sacker bifurcations occur in the dynamics of a large class of feed-forward coupled cell networks. To this end we present a framework for studying such bifurcations in parametrized families of perturbed forced oscillators
Vegter, Gert   +5 more
core   +2 more sources

Hopf Bifurcations of Moore-Greitzer PDE Model with Additive Noise. [PDF]

open access: yesJ Nonlinear Sci, 2023
Meng Y, Namachchivaya NS, Perkowski N.
europepmc   +1 more source

Hopf-Takens bifurcations and centres [PDF]

open access: yes, 2004
The paper deals with Hopf-Takens bifurcations, both in generic families and in families containing centres. Attention goes to the relation between normal forms, Lyapunov coefficients and the Bautin ideal.
Dumortier, F.   +3 more
core   +1 more source

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