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Model for Long-range Correlations in DNA Sequences

We address the problem of the DNA sequences developing a "dynamical" method 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 delta correlated. The generator of the deterministic evolution is a nonlinear map, belonging to a class of maps recently tailored to mimic the processes of weak chaos responsible for the birth of anomalous diffusion. It is assu… more

Date: December 1996

Creator: Allegrini, Paolo

Item Type: Thesis or Dissertation

Partner: UNT Libraries

open access

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.

Date: 2003

Creator: Allegrini, Paolo; Grigolini, Paolo & Palatella, Luigi

Item Type: Paper

Partner: UNT College of Arts and Sciences

open access

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.

Date: August 28, 2003

Creator: Allegrini, Paolo; Grigolini, Paolo & Palatella, Luigi

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

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).

Date: November 1996

Creator: Allegrini, Paolo; Grigolini, Paolo & West, Bruce J.

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

Conflict between trajectories and density description: the statistical source of disagreement

Paper discussing the statistical source of disagreement between trajectories and density description.

Date: December 2002

Creator: Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi & Rosa, Angelo

Item Type: Paper

Partner: UNT College of Arts and Sciences

open access

Renewal aging and linear response

Paper discussing the linear response to an external perturbation of a renewal process, in an aging condition that, with no perturbation, would yield super-diffusion.

Date: February 6, 2008

Creator: Allegrini, Paolo; Ascolani, Gianluca; Bologna, Mauro & Grigolini, Paolo

Item Type: Paper

Partner: UNT College of Arts and Sciences

open access

Event-Driven Power-Law Relaxation in Weak Turbulence

This article discusses event-driven power-law relaxation in weak turbulence.

Date: January 5, 2009

Creator: Silvestri, Ludovico; Fronzoni, Leone; Grigolini, Paolo & Allegrini, Paolo

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

Renewal, Modulation, and Superstatistics in Times Series

Article discussing two different approaches, referred to as renewal and modulation, to generate time series with a nonexponential distribution of waiting times.

Date: April 27, 2006

Creator: Allegrini, Paolo; Barbi, Francesco; Grigolini, Paolo & Paradisi, Paolo

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

Fluctuation-Dissipation Theorem for Event-Dominated Processes

Article discussing the fluctuation-dissipation theorem for event-dominated processes.

Date: July 6, 2007

Creator: Allegrini, Paolo; Bologna, Mauro; Grigolini, Paolo & West, Bruce J.

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

Non-Poisson Dichotomous Noise: Higher-Order Correlation Functions and Aging

This article discusses non-Poisson dichotomous noise and higher-order correlation functions and aging.

Date: October 26, 2004

Creator: Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi & West, Bruce J.

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

From Knowledge, Knowability and the Search for Objective Randomness to a New Vision of Complexity

Paper discussing knowledge, knowability, and the search for objective randomness to a new vision of complexity.

Date: February 2, 2008

Creator: Allegrini, Paolo; Giuntoli, Martina; Grigolini, Paolo & West, Bruce J.

Item Type: Paper

Partner: UNT College of Arts and Sciences

open access

Site correlation, anomalous diffusion, and enhancement of the localization length

This article discusses site correlation, anomalous diffusion, and enhancement of localization length.

Date: November 1, 1996

Creator: Allegrini, Paolo; Bonci, Luca; Grigolini, Paolo & West, Bruce J.

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

Response of Complex Systems to Complex Perturbations: the Complexity Matching Effect

Paper discussing the complexity matching effect.

Date: December 2006

Creator: Allegrini, Paolo; Bologna, Mauro; Grigolini, Paolo & West, Bruce J.

Item Type: Paper

Partner: UNT College of Arts and Sciences

open access

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.

Date: November 1995

Creator: Allegrini, Paolo; Barbi, M.; Grigolini, Paolo & West, Bruce J.

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

Experimental Quenching of Harmonic Stimuli: Universality of Linear Response Theory

This article discusses experimental quenching of harmonic stimuli.

Date: July 15, 2009

Creator: Allegrini, Paolo; Bologna, Mauro; Fronzoni, Leone; Grigolini, Paolo & Silvestri, Ludovico

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

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.

Date: April 1998

Creator: Allegrini, Paolo; Buiatti, Marco, 1972-; Grigolini, Paolo & West, Bruce J.

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

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.

Date: September 1998

Creator: Allegrini, Paolo; Buiatti, Marco, 1972-; Grigolini, Paolo & West, Bruce J.

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

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.

Date: April 11, 2002

Creator: Allegrini, Paolo; Grigolini, Paolo; Hamilton, P.; Palatella, Luigi & Raffaelli, G.

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

Breakdown of the Onsager Principle as a Sign of Aging

Article discussing the breakdown of the Onsager principle as a sign of aging.

Date: July 19, 2011

Creator: Allegrini, Paolo; Aquino, Gerardo; Grigolini, Paolo; Palatella, Luigi & Rosa, Angelo

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

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).

Date: 2003

Creator: Allegrini, Paolo; Aquino, Gerardo; Grigolini, Paolo; Palatella, Luigi & Rosa, Angelo

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

Scaling in Non-Stationary time series I

Paper discussing scaling in non-stationary time series.

Date: February 2, 2008

Creator: Ignaccolo, Massimiliano; Allegrini, Paolo; Grigolini, Paolo; Hamilton, P. & West, Bruce J.

Item Type: Paper

Partner: UNT College of Arts and Sciences

open access

Scaling in Non-stationary Time Series 2: Teen Birth Phenomenon

This paper is devoted to the problem of statistical mechanics raised by the analysis of an issue of sociological interest: the teen birth phenomenon.

Date: February 2, 2008

Creator: Ignaccolo, Massimiliano; Allegrini, Paolo; Grigolini, Paolo; Hamilton, P. & West, Bruce J.

Item Type: Paper

Partner: UNT College of Arts and Sciences

open access

Anomalous diffusion and ballistic peaks: A quantum perspective

Article discussing research on anomalous diffusion and ballistic peaks.

Date: June 1998

Creator: Stefancich, Marco; Allegrini, Paolo; Bonci, Luca; Grigolini, Paolo & West, Bruce J.

Item Type: Article

Partner: UNT College of Arts and Sciences

open access

Non-Poisson processes: regression to equilibrium versus equilibrium correlation functions

Paper discussing non-Poisson processes and regression to equilibrium versus equilibrium correlation functions.

Date: 2004

Creator: Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi; Rosa, Angelo & West, Bruce J.

Item Type: Paper

Partner: UNT College of Arts and Sciences