Results 51 to 60 of about 519,227 (204)

Supercritical Hopf bifurcation and Turing patterns for an activator and inhibitor model with different sources

open access: yesAdvances in Difference Equations, 2018
We study the pattern generating mechanism of a generalized Gierer–Meinhardt model with diffusions. We show the existence and stability of the Hopf bifurcation for the corresponding kinetic system under certain conditions.
Jinliang Wang, You Li, Xiaojie Hou
doaj   +1 more source

Evolution of Physical Intelligence Across Scales

open access: yesAdvanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu   +7 more
wiley   +1 more source

The Turing Way Book Dash: Onboarding Call

open access: yes, 2023
<p><i>The Turing Way</i> <a href="https://the-turing-way.netlify.app/community-handbook/bookdash">Book Dash events</a> are a less intense version of <a href="https://en.wikipedia.org/wiki/Book_sprint">Book Sprints< ...
The Turing Way
core   +1 more source

Chiari I Malformation: Review and Update of Current Treatment Options

open access: yesClinical Anatomy, EarlyView.
ABSTRACT The pathophysiology of Chiari malformation type I (CM‐I) is complex, involving structural abnormalities at the craniovertebral junction that result in herniation of the cerebellar tonsils through the foramen magnum. In this study, we aim to present and evaluate current treatment options for CM‐I, with a focus on evidence‐based clinical ...
Jordan J. Lo   +11 more
wiley   +1 more source

Pattern Formation in a Semi-Ratio-Dependent Predator-Prey System with Diffusion

open access: yesDiscrete Dynamics in Nature and Society, 2013
We investigate spatiotemporal dynamics of a semi-ratio-dependent predator-prey system with reaction-diffusion and zero-flux boundary. We obtain the conditions for Hopf, Turing, and wave bifurcations of the system in a spatial domain by making use of the ...
Hunki Baek, Dong Ick Jung, Zhi-wen Wang
doaj   +1 more source

Exploring the Systemic Impact of External Supply Uncertainty on the Benefits of Demand Information Sharing: A System Dynamics Approach

open access: yesSystems Research and Behavioral Science, EarlyView.
ABSTRACT Effective collaboration through demand information sharing is essential for supply chain performance. However, growing system complexity often hinders equal information access among firms. This study employs system dynamics models to compare scenarios with and without information sharing, investigating how various types of external supply ...
Hyun‐Woong Jin
wiley   +1 more source

Transverse instabilities in chemical Turing patterns of stripes [PDF]

open access: yesPhysical Review E, 2003
We present a theoretical and experimental study of the sideband instabilities in Turing patterns of stripes. We compare numerical computations of the Brusselator model with experiments in a chlorine dioxide-iodine-malonic acid (CDIMA) reaction in a thin gel layer reactor in contact with a continuously refreshed reservoir of reagents.
B, Peña   +4 more
openaire   +2 more sources

Minimal Network Structure for Turing Instability

open access: yes, 2023
Turing instability originates from diffusion-induced instability within biochemical systems and has been described as a critical component regarding the recognition of pattern formations.
Millis, Brendan
core   +1 more source

Turing Patterns in a Predator-Prey System with Self-Diffusion

open access: yesAbstract and Applied Analysis, 2013
For a predator-prey system, cross-diffusion has been confirmed to emerge Turing patterns. However, in the real world, the tendency for prey and predators moving along the direction of lower density of their own species, called self-diffusion, should be ...
Hongwei Yin, Xiaoyong Xiao, Xiaoqing Wen
doaj   +1 more source

The Diffusion-Driven Instability for a General Time-Space Discrete Host-Parasitoid Model

open access: yesDiscrete Dynamics in Nature and Society, 2023
In this paper, we consider a general time-space discrete host-parasitoid model with the periodic boundary conditions. We analyzed and obtained some usual conditions, such as Turing instability occurrence, Flip bifurcation occurrence, and Neimark-Sacker ...
Xuetian Zhang, Chunrui Zhang
doaj   +1 more source

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