Results 51 to 60 of about 608 (201)

Population dynamical behavior of non-autonomous Lotka-Volterra competitive system with random perturbation

, 2009
In this paper, we consider a non-autonomous stochastic Lotka-Volterra competitive system dxi(t) = xi(t)[(bi(t)¡ nPj=1aij (t)xj (t))dt+¾i(t)dBi(t)], where Bi(t) (i = 1; 2; ¢ ¢ ¢ ; n) are independent standard Brownian motions. Some dynamical properties are
Key Laboratory for Applied Statistics of MOE (KLAS) (Funder), Mao, X., , Key Laboratory for Applied Statistics of MOE (KLAS) (Funder), National Natural Science Foundation of China (Funder), , Key Project of Chinese Ministry of Education (Funder), , National Natural Science Foundation of China (Funder), Li, X., Key Project of Chinese Ministry of Education (Funder)   +7 more
core   +1 more source

Exponential Synchronization Control of Discontinuous Nonautonomous Networks and Autonomous Coupled Networks

Complexity, 2018
This paper concerns complex delayed neural networks with discontinuous activations. Based on the framework of differential inclusion theory, we design two novel controllers by regulating a parameter σ 0 ...
Chao Yang, Lihong Huang, Fangmin Li
doaj   +1 more source

Attractors for non-autonomous retarded lattice dynamical systems [PDF]

, 2015
In this paperwe study a non-autonomous lattice dynamical system with delay. Under rather general growth and dissipative conditions on the nonlinear term,we define a non-autonomous dynamical system and prove the existence of a pullback attractor for such ...
Caraballo Garrido, Tomás, Morillas Jurado, Francisco, Valero Cuadra, José   +2 more
core   +1 more source

Theoretical and paleoclimatic evidence for abrupt transitions in the Earth system

Environmental Research Letters, 2022
Specific components of the Earth system may abruptly change their state in response to gradual changes in forcing. This possibility has attracted great scientific interest in recent years, and has been recognized as one of the greatest threats associated
Niklas Boers, Michael Ghil, Thomas F Stocker   +2 more
doaj   +1 more source

Small RNA pathways in mammalian oocytes

FEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

Topological entropy of nonautonomous dynamical systems [PDF]

Journal of Differential Equations, 2020
Let $\mathcal{M}(X)$ be the space of Borel probability measures on a compact metric space $X$ endowed with the weak$^\ast$-topology. In this paper, we prove that if the topological entropy of a nonautonomous dynamical system $(X,\{f_n\}_{n=1}^{+\infty})$ vanishes, then so does that of its induced system $(\mathcal{M}(X),\{f_n\}_{n=1}^{+\infty ...
Liu, Kairan, Qiao, Yixiao, Xu, Leiye
openaire   +2 more sources

Field‐Programable Dynamics in a Soft Magnetic Actuator Enabling True Random Number Generation and Reservoir Computing

Advanced Intelligent Systems, EarlyView.
Complex dynamics, often avoided in electromechanical design, can enhance soft robotics. We develop durable magnetic soft actuators operating in tunable dynamic regimes, enabling random number generation, stochastic computing, and time‐series prediction.
Eduardo Sergio Oliveros‐Mata, Oleksandr V. Pylypovskyi, Eleonora Raimondo, Rico Illing, Yevhen Zabila, Lin Guo, Guannan Mu, Mónica Navarro López, Xu Wang, Georgios Tzortzinis, Angelos Filippatos, Gilbert Santiago Cañón Bermúdez, Francesca Garescì, Giovanni Finocchio, Denys Makarov   +14 more
wiley   +1 more source

Population dynamical behavior of Lotka-Volterra system under regime switching

, 2009
In this paper, we investigate a Lotka-Volterra system under regime switching dx(t) = diag(x1(t); : : : ; xn(t))[(b(r(t)) + A(r(t))x(t))dt + (r(t))dB(t)]; where B(t) is a standard Brownian motion.
Li, Xiaoyue, Jiang, Daqing, Mao, X., , Royal Society of Edinburgh (Funder), Mao, Xuerong, National Natural Science Foundation of China (Funder), , National Natural Science Foundation of China (Funder), Li, X., Jiang, D., Royal Society of Edinburgh (Funder)   +9 more
core   +1 more source

Study of Transitivity, Periodic Density and Sensitivity for Chaotic Non-Autonomous Fuzzified Dynamical System [PDF]

Sahand Communications in Mathematical Analysis
The present investigations focus on the mathematical analysis and investigation of non-autonomous discrete dynamical systems. A non-autonomous discrete dynamical system has been framework  using the series technique map method to elaborate the ...
Renu Verma, Ram Yadav
doaj   +1 more source

Nudging ESG Investments via Digital Financial Advising: Evidence From an Investment Game Experiment

Business Strategy and the Environment, EarlyView.
ABSTRACT The influence of financial advisors on retail investors' sustainable investment choices remains surprisingly underexplored, despite their potential to shape investment behavior. This study uses an experimental design to examine how sustainability‐related information provided by a digital (simulated) financial advisor affects individual demand ...
Caterina Lucarelli, Manuele Citi, Matteo Pasquino   +2 more
wiley   +1 more source