Results 41 to 50 of about 19,850 (262)
HYPERCHAOTIC DYNAMICS OF A NEW FRACTIONAL DISCRETE-TIME SYSTEM
Fractals, 2021 In recent years, some efforts have been devoted to nonlinear dynamics of fractional discrete-time systems. A number of papers have so far discussed results related to the presence of chaos in fractional maps. However, less results have been published to date regarding the presence of hyperchaos in fractional discrete-time systems.
Khennaoui, Amina-Aicha +6 more
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FEBS Open Bio, EarlyView.This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 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 ...
Haddad Wassim M +3 more
doaj +2 more sources
Virtual Sensors for Nonlinear Discrete-Time Dynamic Systems
Symmetry, 2023 The problem of virtual sensor design for nonlinear systems under the disturbance is investigated. Two different mathematical techniques are used to solve the problem: the algebra of functions and the logic-dynamic approach. The first one allows obtaining a general solution while the second one produces a solution for nonlinear systems by linear algebra
Oleg Sergiyenko +7 more
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FEBS Open Bio, EarlyView.Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero +5 more
wiley +1 more source
Furstenberg Family and Chaos for Time-Varying Discrete Dynamical Systems
EntropyAssume that (Y,ρ) is a nontrivial complete metric space, and that (Y,g1,∞) is a time-varying discrete dynamical system (T-VDDS), which is given by sequences (gl)l=1∞ of continuous selfmaps gl:Y→Y.
Risong Li +4 more
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Properties of some one-dimensional dynamical systems
Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2015 This work is devoted to the study of some one-dimensional dynamical systems with discrete time, for which rounding to the different number of decimal places leads to the qualitative change in orbits.
V. I. Ruban, V. V. Chorna
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Parameter Estimation for Dynamical Systems Using a Deep Neural Network
Applied Computational Intelligence and Soft Computing, 2022 The deep neural network (DNN) was applied for estimating a set of unknown parameters of a dynamical system whose measured data are given for a set of discrete time points.
Tamirat Temesgen Dufera +2 more
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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
Analysis of the fractional descriptor linear systems by the decomposition into the dynamical and static parts [PDF]
Archives of Control SciencesA new method of the decomposition of the fractional descriptor linear continuoustime and discrete-time systems into dynamical and static parts is proposed.
Tadeusz Kaczorek, Lukasz Sajewski
doaj +1 more source