UNT Scholarly Works - 123 Matching Results
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- Bridging Waves and Crucial Events in the Dynamics of the Brain
- This article establishes an approach that simultaneously detects the statistical properties of crucial events and a connection with the wave-like nature of brain dynamics.
- Complexity and the Fractional Calculus
- Article discussing a study on complexity and the fractional calculus.
- Fast-computational approach to the evaluation of slow-motion EPR spectra in terms of a generalized Langevin equation
- Article discussing a fast-computational approach to the evaluation of slow-motion EPR spectra in terms of a generalized Langevin equation.
- Dynamical model for DNA sequences
- This article discusses a dynamical model for DNA sequences based on the assumption that the statistical properties of DNA paths are determined by the joint action of two processes, one deterministic with long-range correlations and the other random and δ-function correlated.
- Chaos and thermal conductivity
- Article discussing research on chaos and thermal conductivity.
- Noise-induced transition from anomalous to ordinary diffusion: The crossover time as a function of noise intensity
- This article discusses noise-induced transition from anomalous to ordinary diffusion and the crossover time as a function of noise intensity.
- Anomalous diffusion and environment-induced quantum decoherence
- Article discussing research on anomalous diffusion and environment-induced quantum decoherence.
- Linear Response of Hamiltonian Chaotic Systems as a Function of the Number of Degrees of Freedom
- This article discusses the linear response of Hamiltonian chaotic systems as a function of the number of degrees of freedom.
- Dynamical approach to Lévy processes
- This article discusses a dynamical approach to Lévy processes, which makes it possible to derive all statistical properties of the diffusion process from the correlation function of the dichotomous fluctuating variable Φy(t).
- Site correlation, anomalous diffusion, and enhancement of the localization length
- This article discusses site correlation, anomalous diffusion, and enhancement of localization length.
- Bianucci, Mannella, and Grigolini Reply
- Article replying to a comment by Massimo Falcioni and Angelo Vulpiani. The authors discuss research on the linear response theory (LRT).
- Fractional Brownian motion as a nonstationary process: An alternative paradigm for DNA sequences
- Article discussing the fractional Brownian motion (FBM) as a nonstationary process and an alternative paradigm for DNA sequences.
- Anomalous diffusion and ballistic peaks: A quantum perspective
- Article discussing research on anomalous diffusion and ballistic peaks.
- Non-Gaussian statistics of anomalous diffusion: The DNA sequences of prokaryotes
- This article discusses a non-Gaussian indicator to measure the deviation from Gaussian statistics of a diffusion process generated by dichotomous fluctuations with infinite memory.
- Tunneling rate fluctuations induced by nonlinear resonances: A quantitative treatment based on semiclassical arguments
- This article discusses tunneling rate fluctuations induced by nonlinear resonances. The authors investigate the tunneling process between two symmetric stable islands of a forced pendulum Hamiltonian in the weak chaos regime.
- The Markov approximation revisited: inconsistency of the standard quantum Brownian motion model
- Article discussing the Markov approximation and inconsistency of the standard quantum Brownian motion model.
- Fractional calculus as a macroscopic manifestation of randomness
- Article discussing fractional calculus as a macroscopic manifestation of randomness.
- Dynamic Approach to the Thermodynamics of Superdiffusion
- This article discusses dynamic approach to the thermodynamics of superdiffusion.
- Lévy diffusion as an effect of sporadic randomness
- This article discusses Lévy diffusion as an effect of sporadic randomness.
- Fluctuation-Dissipation Process Without a Time Scale
- Article discussing the fluctuation-dissipation process without a time scale.
- Anomalous diffusion associated with nonlinear fractional derivative Fokker-Planck-like equation: Exact time-dependent solutions
- Article discussing research on anomalous diffusion associated with nonlinear fractional derivative Fokker-Planck-like equation.
- Towards the thermodynamics of localization processes
- In this article, the authors study the entropy time evolution of a quantum mechanical model, which is frequently used as a prototype for Anderson's localization.
- Canonical and noncanonical equilibrium distribution
- Article discussing research on canonical and noncanonical equilibrium distribution.
- Trajectory versus probability density entropy
- In this article, the authors show that the widely accepted conviction that a connection can be established between the probability density entropy and the Kolmogorov-Sinai (KS) entropy is questionable.
- Quantum Entanglement and Entropy
- This article discusses quantum entanglement and entropy.
- Diffusion Entropy and Waiting Time Statistics of Hard-X-Ray Solar Flares
- Article on diffusion entropy and waiting time statistics of hard-x-ray solar flares.
- Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition
- In this article, the authors describe two types of memory and illustrate each using artificial and actual heartbeat data sets.
- Scaling Breakdown: A Signature of Aging
- In this article, the authors prove that the Lévy walk is characterized by bilinear scaling. This effect mirrors the existence of a form of aging that does not require the adoption of nonstationary conditions.
- Real event detection and the treatment of congestive heart failure: an efficient technique to help cardiologists to make crucial decisions
- Paper discussing the treatment of congestive heart failure. Abstract: Using a method of entropic analysis of time series we establish the correlation between heartbeat long-range memory and mortality risk in patients with congestive heart failure.
- Lévy Scaling: The Diffusion Entropy Analysis Applied to DNA Sequences
- Article on Lévy scaling and the diffusion entropy analysis applied to DNA sequences. The authors address the problem of the statistical analysis of a time series generated by complex dynamics with the diffusion entropy analysis.
- Scaling Detection in Time Series: Diffusion Entropy Analysis
- Article discussing a method of statistical analysis based on the Shannon entropy of the diffusion process generated by the time series, called diffusion entropy analysis (DEA).
- Short- and Long-Term Statistical Properties of Heartbeat Time-Series in Healthy and Pathological Subjects
- Paper discussing short- and long-term statistical properties of heartbeat time-series in healthy and pathological subjects.
- Conflict between trajectories and density description: the statistical source of disagreement
- Paper discussing the statistical source of disagreement between trajectories and density description.
- Cognitive Scale-Free Networks as a Model for Intermittency in Human Natural Language
- Paper discussing cognitive scale-free networks as a model for intermittency in human natural language.
- Generalized Master Equation Via Aging Continuous-Time Random Walks
- This article discusses the problem of the equivalence between continuous-time random walk (CTRW) and generalized master equation (GME).
- In the search for the low-complexity sequences in prokaryotic and eukaryotic genomes: how to derive a coherent picture from global and local entropy measures
- Paper discussing the search for the low-complexity sequences in prokaryotic and eukaryotic genomes and how to derive a coherent picture from global and local entropy measures.
- Long- and Short-Time Analysis of Heartbeat Sequences: Correlation with Mortality Risk in Congestive Heart Failure Patients
- Article discussing long- and short-time analysis of heartbeat sequences and the correlation with mortality risk in congestive heart failure patients.
- Vortex Dynamics in Evolutive Flows: A Weakly Chaotic Phenomenon
- In this article, the authors make use of a wavelet method to extract, from experimental velocity signals obtained in an evolutive flow, the dominating velocity components generated by vortex dynamics.
- Compression and Diffusion: A Joint Approach to Detect Complexity
- Article discussing a joint approach to detect complexity by combining the Compression Algorithm Sensitive To Regularity (CASToRe) and Complex Analysis of Sequences via Scaling AND Randomness Assessment (CASSANDRA) procedures.
- Power-Law Time Distribution of Large Earthquakes
- Article discussing power-law time distribution of large earthquakes and a study of the statistical properties of time distribution of seismicity in California by means of diffusion entropy.
- Intermittency and scale-free networks: a dynamical model for human language complexity
- Article discussing intermittency, scale-free networks, and a dynamical model for human language complexity.
- Reply to the Comment "Intercluster correlation in Seismicity" by Helmstetter and Sornette
- This paper is a reply to the comment by Helmstetter and Sornette titled "Intercluster correlation in Seismicity" which addresses an important point in a paper written by the authors that needs to be clarified.
- Detection of invisible and crucial events: from seismic fluctuations to the war against terrorism
- Paper discussing the detection of invisible and crucial events.
- Non-Poisson distribution of the time distances between two consecutive clusters of earthquakes
- Article discussing non-Poisson distribution of the time distances between two consecutive clusters of earthquakes.
- Non-Poisson processes: regression to equilibrium versus equilibrium correlation functions
- Paper discussing non-Poisson processes and regression to equilibrium versus equilibrium correlation functions.
- Solar Turbulence in Earth's Global and Regional Temperature Anomalies
- This article presents a study of the influence of solar activity on the earth's temperature. In particular, the authors focus on the repercussion of the fluctuations of the solar irradiance on the temperature of the Northern and Southern hemispheres as well as on land and ocean regions.
- Mega et al. Reply
- This article is a reply to a comment by A. Helmstetter and D. Sornette about the article 'Power-Law Time Distribution of Large Earthquakes' from 2003.
- Absorption and Emission in the Non-Poissonian Case
- Article on absorption and emission in the Non-Poissonian Case.
- Random Growth of Interfaces as a Subordinated Process
- Article discussing the random growth of interfaces as a subordinated process.
- Aging and Rejuvenation with Fractional Derivatives
- This article discusses aging rejuvenation with fractional derivatives.