Results 61 to 70 of about 22,261 (260)
New Methodology of Block Cipher Analysis using Chaos Game [PDF]
ITB Journal of Information and Communication Technology, 2011 Block cipher analysis covers randomness analysis and cryptanalysis. This paper proposes a new method potentially used for randomness analysis and cryptanalysis. The method uses true random sequence concept as a reference for measuring randomness level of
Budi Sulistyo +3 more
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Discrete Watson–Crick dynamical systems
Theoretical Computer Science, 2017 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Stage‐Dependent β‐Synuclein Links MRI and Cognitive Decline in Alzheimer's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Synaptic degeneration drives cognitive decline in Alzheimer's disease (AD), but synaptic biomarkers are scarce. Brain‐enriched β‐synuclein emerged as a synaptic damage marker. We investigated its diagnostic, prognostic, and structural correlates across the AD continuum.
Ulaş Ay +15 more
wiley +1 more source
On monotonicity of solutions of discrete-time nonnegative and compartmental dynamical systems
Advances in Difference Equations, 2004 Nonnegative and compartmental dynamical system models are widespread in biological, physiological, and pharmacological sciences. Since the state variables of these systems are typically masses or concentrations of a physical process, it is of interest to
Jayanthy Ramakrishnan +3 more
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Chaos on Discrete Neural Network Loops with Self-Feedback
Discrete Dynamics in Nature and Society, 2020 In this paper, the complex dynamical behaviors in a discrete neural network loop with self-feedback are studied. Specifically, an invariant closed set of the system of neural network loops is built and the subsystem restricted on this invariant closed ...
Yuanlong Chen, Xiaoying Wu
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Arthritis Care &Research, EarlyView.Objective To evaluate utility of an artificial intelligence (AI) health coach for systemic sclerosis (SSc) self‐management and identify patterns associated with participant engagement. Methods We conducted a mixed methods study in which an AI health coach, powered by a large language model (LLM), was used to support self‐management for SSc.
Nirali Shah +4 more
wiley +1 more source
Dynamical complexities in a discrete-time food chain [PDF]
Computational Ecology and Software, 2012 In this paper, a discrete-time food chain characterized by three species is modeled by a system of three nonlinear difference equations. The existence and local stability of the equilibrium points of the discrete dynamical system are analyzed.
Abd-Elalim A. Elsadany
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A Switching Hybrid Dynamical System: Toward Understanding Complex Interpersonal Behavior
Applied Sciences, 2018 Complex human behavior, including interlimb and interpersonal coordination, has been studied from a dynamical system perspective. We review the applications of a dynamical system approach to a sporting activity, which includes continuous, discrete, and ...
Yuji Yamamoto +4 more
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International Journal of Adaptive Control and Signal Processing, EarlyView.This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir +2 more
wiley +1 more source
Complexity and Dynamical Depth
Information, 2014 We argue that a critical difference distinguishing machines from organisms and computers from brains is not complexity in a structural sense, but a difference in dynamical organization that is not well accounted for by current complexity measures.
Terrence Deacon, Spyridon Koutroufinis
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