Results 91 to 100 of about 115,774 (280)

Stochastic Periodic Solution and Persistence of a Nonautonomous Impulsive System with Nonlinear Self-Interaction

Discrete Dynamics in Nature and Society, 2020
Considering periodic environmental changes and random disturbance, we explore the dynamical behaviors of a stochastic competitive system with impulsive and periodic parameters in this paper.
Weili Kong, Yuanfu Shao
doaj   +1 more source

AutomataGPT: Transformer‐Based Forecasting and Ruleset Inference for Two‐Dimensional Cellular Automata

Advanced Science, EarlyView.
We introduce AutomataGPT, a generative pretrained transformer (GPT) trained on synthetic spatiotemporal data from 2D cellular automata to learn symbolic rules. Demonstrating strong performance on both forward and inverse tasks, AutomataGPT establishes a scalable, domain‐agnostic framework for interpretable modeling, paving the way for future ...
Jaime A. Berkovich, Noah S. David, Markus J. Buehler   +2 more
wiley   +1 more source

Dynamical analysis of multi-nutrient and single microorganism chemostat model in a polluted environment

Advances in Difference Equations, 2018
In this paper, we propose a multi-nutrient and single microorganism chemostat model with stochastic effect and impulsive toxicant input. Firstly, for the system neglecting stochastic effect, we investigate the global dynamics including the existence and ...
Mengnan Chi, Wencai Zhao
doaj   +1 more source

On the modeling of neural cognition for social network applications

, 2017
In this paper, we study neural cognition in social network. A stochastic model is introduced and shown to incorporate two well-known models in Pavlovian conditioning and social networks as special case, namely Rescorla-Wagner model and Friedkin-Johnsen ...
Cvetkovic, Vladimir, Johansson, Karl H., Molinari, Marco, Wei, Jieqiang, Wu, Junfeng   +4 more
core   +1 more source

Consensus Formation and Change are Enhanced by Neutrality

Advanced Science, EarlyView.
Neutral agents are shown to enhance both the formation and overturning of consensus in collective decision‐making. A general mathematical model and experiments with locusts and humans reveal that neutrality enables robust consensus via simple interactions and accelerates consensus change by reducing effective population size.
Andrei Sontag, Janina A. Hoffmann, Tim Rogers, Christian A. Yates   +3 more
wiley   +1 more source

Non-Fragile H_∞ Asynchronous State Estimation for Delayed Markovian Jumping NNs with Stochastic Disturbance

Mathematics
This article focuses on tackling the non-fragile H∞ asynchronous estimation problem for delayed Markovian jumping neural networks (NNs) featuring stochastic disturbance.
Lan Wang, Juping Tang, Qiang Li, Xianwei Yang, Haiyang Zhang   +4 more
doaj   +1 more source

Conformable Microelectrode Arrays Integrated with a Scoop‐Shaped Slide‐Well for Dynamic Electrophysiological Profiling of Patient‐Derived Cardiac Organoids

Advanced Science, EarlyView.
A flexible, ultrathin multi‐channel microelectrode array (MEA) conformally integrated onto a curved slide‐well enables stable electrical interfacing with 3D cardiac organoids. The geometry‐guided self‐alignment allows simultaneous recording of extracellular field potentials and contractile motion from irregular, beating tissues.
Ye Seul Kim, Jeonghwa Jeong, Gyeonghwa Heo, Young Woo Kwon, Jeongha Lee, Yoon Ji Jeong, Gyu Tae Park, Seongdo Jeong, Ki Won Hwang, Murim Choi, Jinhong Shin, Suck Won Hong, Jae Ho Kim   +12 more
wiley   +1 more source

Inflation and Globalisation: A Dynamic Factor Model with Stochastic Volatility [PDF]

National inflation rates reflect domestic and international (regional and global) influences. The relative importance of these components remains a controversial empirical issue.
Alexandros Kontonikas, Fatima Kaneez, Joseph P. Byrne   +2 more
core  

Landau damping of partially incoherent Langmuir waves

, 2002
It is shown that partial incoherence, in the form of stochastic phase noise, of a Langmuir wave in an unmagnetized plasma gives rise to a Landau-type damping. Starting from the Zakharov equations, which describe the nonlinear interaction between Langmuir
Alber, Benjamin, Crawford, D Anderson, Dawson, Fedele, Fedele, Hall, Hillery, Janssen, Karpman, Landau, Lawson, Lisak, M Lisak, M Onorato, Malomed, Moyal, Nishikawa, Nishikawa, P.K Shukla, R Fedele, Sturrock, Toda, Vedenov, Vedenov, Wigner, Yuen, Zakharov, Zakharov   +29 more
core   +1 more source

Mechanostimulatory Cues Determine Intestinal Fibroblast Fate and Profibrotic Remodeling in a Physiodynamic Human Gut‐on‐a‐Chip

Advanced Science, EarlyView.
A healthy gut barrier shields underlying fibroblasts from luminal shear forces, illustrating that “good fences make good neighbors.” Barrier damage exposes fibroblasts to shear stress, inducing cell death and the emergence of stress‐adapted, profibrotic fibroblasts. Sustained shear exposure promotes the formation of stiff aggregates of mechanoadapative
Soyoun Min, Nam Than, Yong Cheol Shin, Elif G. Ertugral, Chandrasekhar R. Kothapalli, Olumuyiwa Awoniyi, Hyun Jung Kim   +6 more
wiley   +1 more source