Results 81 to 90 of about 170,832 (317)

Dynamical Systems that Heal [PDF]

open access: yes, 2023
Malware plays a key role in attacking critical infrastructure. With this problem in mind, we introduce systems that heal from a broader perspective than the standard digital computer model: Our goal in a more general theory is to be applicable to ...
Fiske, Michael
core   +2 more sources

On Targeted Control over Trajectories of Dynamical Systems Arising in Models of Complex Networks

open access: yesMathematics, 2023
The question of targeted control over trajectories of systems of differential equations encountered in the theory of genetic and neural networks is considered. Examples are given of transferring trajectories corresponding to network states from the basin
Diana Ogorelova   +2 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

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

open access: yes, 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)   +7 more
core   +1 more source

Periodic and Chaotic Orbits of a Neuron Model

open access: yesMathematical Modelling and Analysis, 2015
In this paper we study a class of difference equations which describes a discrete version of a single neuron model. We consider a generalization of the original McCulloch-Pitts model that has two thresholds.
Aija Anisimova   +2 more
doaj   +1 more source

Intrinsic and Synaptic Properties Shaping Diverse Behaviors of Neural Dynamics

open access: yesFrontiers in Computational Neuroscience, 2020
The majority of neurons in the neuronal system of the brain have a complex morphological structure, which diversifies the dynamics of neurons. In the granular layer of the cerebellum, there exists a unique cell type, the unipolar brush cell (UBC), that ...
Lingling An   +7 more
doaj   +1 more source

Semantic Segmentation of Medical Images Based on Runge–Kutta Methods

open access: yesBioengineering, 2023
In recent years, deep learning has achieved good results in the semantic segmentation of medical images. A typical architecture for segmentation networks is an encoder–decoder structure.
Mai Zhu, Chong Fu, Xingwei Wang
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Control of Networked Dynamical System with Heterogenous Dynamics [PDF]

open access: yes, 2021
Generally speaking, cooperative control of networked dynamical systems can be classified into leaderless coordination and leader-following coordination problems depending on whether or not there is a leader specifying the global information.
Yang, T.,   +2 more
core   +1 more source

ALGEBRAIC STRUCTURES ON A SET OF DISCRETE DYNAMICAL SYSTEM AND A SET OF PROFILE

open access: yesBarekeng
A discrete dynamical system is represented as a directed graph with graph nodes called states that can be seen on the dynamical map. This discrete dynamical system is symbolized by , where  is a finite set of states and the function g  is a function ...
Ananda Ayu Permatasari   +2 more
doaj   +1 more source

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