619 Matching Results

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Experimental Quenching of Harmonic Stimuli: Universality of Linear Response Theory (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
Object Type: Article
System: The UNT Digital Library
Fluctuation-Dissipation Theorem for Event-Dominated Processes (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.
Object Type: Article
System: The UNT Digital Library
Response of Complex Systems to Complex Perturbations: the Complexity Matching Effect (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.
Object Type: Paper
System: The UNT Digital Library
Site correlation, anomalous diffusion, and enhancement of the localization length (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.
Object Type: Article
System: The UNT Digital Library
Fractional Brownian motion as a nonstationary process: An alternative paradigm for DNA sequences (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.
Object Type: Article
System: The UNT Digital Library
Non-Gaussian statistics of anomalous diffusion: The DNA sequences of prokaryotes (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.
Object Type: Article
System: The UNT Digital Library
Detection of invisible and crucial events: from seismic fluctuations to the war against terrorism (open access)

Detection of invisible and crucial events: from seismic fluctuations to the war against terrorism

Paper discussing the detection of invisible and crucial events.
Date: October 28, 2003
Creator: Allegrini, Paolo; Fronzoni, Leone; Grigolini, Paolo; Latora, Vito; Mega, Mirko S.; Palatella, Luigi et al.
Object Type: Paper
System: The UNT Digital Library
From Knowledge, Knowability and the Search for Objective Randomness to a New Vision of Complexity (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.
Object Type: Paper
System: The UNT Digital Library
Cognitive Scale-Free Networks as a Model for Intermittency in Human Natural Language (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
Object Type: Paper
System: The UNT Digital Library
Intermittency and scale-free networks: a dynamical model for human language complexity (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
Object Type: Article
System: The UNT Digital Library
Dynamical approach to Lévy processes (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.
Object Type: Article
System: The UNT Digital Library
Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition (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.
Object Type: Article
System: The UNT Digital Library
Conflict between trajectories and density description: the statistical source of disagreement (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
Object Type: Paper
System: The UNT Digital Library
Non-Poisson Dichotomous Noise: Higher-Order Correlation Functions and Aging (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.
Object Type: Article
System: The UNT Digital Library
Non-Poisson processes: regression to equilibrium versus equilibrium correlation functions (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.
Object Type: Paper
System: The UNT Digital Library
Spontaneous Brain Activity as a Source of Ideal 1/f Noise (open access)

Spontaneous Brain Activity as a Source of Ideal 1/f Noise

In this article, the authors study the electroencephalogram (EEG) of 30 closed-eye subjects with a technique of analysis recently proposed to detect punctual events signaling rapid transitions between different metastable states.
Date: December 18, 2009
Creator: Allegrini, Paolo; Menicucci, Danilo; Bedini, Remo; Fronzoni, Leone; Gemignani, Angelo; Grigolini, Paolo et al.
Object Type: Article
System: The UNT Digital Library
Resonance modes in moiré photonic patterns for twistoptics (open access)

Resonance modes in moiré photonic patterns for twistoptics

Article studying twistoptics for manipulating optical properties in twisted moiré photonic patterns without physical rotations. The presented approach can lead toward the study of twistoptics for the manipulating of optical properties in moiré patterns with different twist angles.
Date: April 12, 2021
Creator: Alnasser, Khadijah; Kamau, Steve; Cui, Jingbiao & Lin, Yuankun
Object Type: Article
System: The UNT Digital Library
Photonic Band Gaps and Resonance Modes in 2D Twisted Moiré Photonic Crystal (open access)

Photonic Band Gaps and Resonance Modes in 2D Twisted Moiré Photonic Crystal

Article studying 2D twisted moiré photonic crystals without physical rotation and simulating their photonic band gaps in photonic crystals formed at different twisted angles, different gradient levels, and different dielectric filling factors.
Date: September 23, 2021
Creator: Alnasser, Khadijah; Kamau, Steve; Hurley, Noah; Cui, Jingbiao & Lin, Yuankun
Object Type: Article
System: The UNT Digital Library
Deep Minima and Vortices for Positronium Formation in Low-Energy Positron-Hydrogen Collisions (open access)

Deep Minima and Vortices for Positronium Formation in Low-Energy Positron-Hydrogen Collisions

Article using the two-channel Kohn inverse and Kohn variational methods to investigate ground-state positronium (Ps) formation in positron-hydrogen collisions in the Ore gap. This is the Accepted Manuscript Version of the article.
Date: September 30, 2019
Creator: Alrowaily, Albandari W.; Quintanilla, Sandra J. & Van Reeth, P.
Object Type: Article
System: The UNT Digital Library
Deep Minimum and a Vortex for Positronium Formation in Low-Energy Positron-Helium Collisions (open access)

Deep Minimum and a Vortex for Positronium Formation in Low-Energy Positron-Helium Collisions

This article finds a zero in the positronium formation scattering amplitude and a deep minimum in the logarithm of the corresponding differential cross section for positron–helium collisions for an energy just above the positronium formation threshold. Results show that there is a valley in the logarithm of the positronium formation differential cross section that includes the deep minimum and also a minimum in the forward direction.
Date: August 6, 2021
Creator: Alrowaily, Albandari W.; Quintanilla, Sandra J. & Van Reeth, Peter
Object Type: Article
System: The UNT Digital Library

The Universal Code

Poster presentation for the 2010 University Scholars Day at the University of North Texas discussing research on the universal code.
Date: April 15, 2010
Creator: Alvarado, Roberto & Kirk, Andrea B.
Object Type: Poster
System: The UNT Digital Library
L- and M-shell x-ray production cross sections of Nd, Gd, Ho, Yb, Au, and Pb by 25-MeV carbon and 32-MeV oxygen ions (open access)

L- and M-shell x-ray production cross sections of Nd, Gd, Ho, Yb, Au, and Pb by 25-MeV carbon and 32-MeV oxygen ions

Article discussing research on L- and M-shell x-ray production cross sections of Nd, Gd, Ho, Yb, Au, and Pb by 25-MeV carbon and 32-MeV oxygen ions.
Date: October 15, 1987
Creator: Andrews, M. C.; McDaniel, Floyd Del. (Floyd Delbert), 1942-; Duggan, Jerome L.; Miller, P. D.; Pepmiller, P. L.; Krause, H. F. et al.
Object Type: Article
System: The UNT Digital Library
Fluctuation-Dissipation Process Without a Time Scale (open access)

Fluctuation-Dissipation Process Without a Time Scale

Article discussing the fluctuation-dissipation process without a time scale.
Date: May 2000
Creator: Annunziato, Mario; Grigolini, Paolo & Riccardi, Juri
Object Type: Article
System: The UNT Digital Library
Canonical and noncanonical equilibrium distribution (open access)

Canonical and noncanonical equilibrium distribution

Article discussing research on canonical and noncanonical equilibrium distribution.
Date: 2001
Creator: Annunziato, Mario; Grigolini, Paolo & West, Bruce J.
Object Type: Article
System: The UNT Digital Library