Results 111 to 120 of about 20,055 (271)

The effect of linear mixing in the EEG on Hurst exponent estimation

open access: yesNeuroImage, 2014
Although the long-range temporal correlation (LRTC) of the amplitude fluctuations of neuronal EEG/MEG oscillations is widely acknowledged, the majority of studies to date have been performed in sensor space, disregarding the mixing effects implied by volume conduction and confounding noise.
Duncan A.J. Blythe   +3 more
openaire   +2 more sources

Towards Sustainable e‐Waste Practices: A Value‐Belief‐Norm Analysis of Mobile Phone Disposal in Ghana

open access: yesSustainable Development, Volume 33, Issue 6, Page 8682-8705, December 2025.
ABSTRACT Electronic waste (e‐waste) from mobile phones is a growing concern in resource‐constrained contexts, where limited infrastructure and regulatory enforcement promote reliance on informal systems. In Ghana, a rapidly expanding digital market, e‐waste accumulation poses significant environmental and social challenges.
Alina Iskander   +2 more
wiley   +1 more source

Group-wise herding behavior in financial markets: an agent-based modeling approach.

open access: yesPLoS ONE, 2014
In this paper, we shed light on the dynamic characteristics of rational group behaviors and the relationship between monetary policy and economic units in the financial market by using an agent-based model (ABM), the Hurst exponent, and the Shannon ...
Minsung Kim, Minki Kim
doaj   +1 more source

Classical and modified rescaled range analysis: Sampling properties under heavy tails [PDF]

open access: yes
Mostly used estimators of Hurst exponent for detection of long-range dependence are biased by presence of short-range dependence in the underlying time series. We present confidence intervals estimates for rescaled range and modified rescaled range.
Ladislav Kristoufek
core   +1 more source

Realization of SOC behavior in a dc glow discharge plasma

open access: yes, 2006
Experimental observations consistent with Self Organized Criticality (SOC) have been obtained in the electrostatic floating potential fluctuations of a dc glow discharge plasma. Power spectrum exhibits a power law which is compatible with the requirement
A.N. Sekar Iyengar   +22 more
core   +1 more source

Hurst exponents and cyclic scenarios in a photonic integrated circuit

open access: yesPhysical Review E, 2008
We experimentally report the cyclic scenario of birth and annihilation of periodic orbits in a photonic integrated circuit as the feedback phase of the electric field varies. The latter is also shown to result in minimal alterations in the statistical properties of the chaotic attractor, with simultaneously transiting the Hurst exponent H , erratically,
Chlouverakis, K.E.   +3 more
openaire   +3 more sources

Self-organization of value and demand

open access: yes, 2000
We study the dynamics of exchange value in a system composed of many interacting agents. The simple model we propose exhibits cooperative emergence and collapse of global value for individual goods.
Akgiray   +17 more
core   +1 more source

Effects of Stress and Friction Heterogeneity on Spatiotemporal Complexity of Seismic and Aseismic Slip on Strike‐Slip Faults

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Numerical and laboratory models of earthquake cycles on faults governed by rate‐and‐state friction often show cycle‐invariant behavior, while natural faults exhibit considerable variability in slip history. Possible explanations include heterogeneities in fault stress and frictional properties. We investigate how various types of heterogeneity
Jeena Yun   +3 more
wiley   +1 more source

Influence of granulometry in the Hurst exponent of air liquid interfaces formed during capillary rising in a granular media

open access: yesEPJ Web of Conferences, 2017
We report results concerning the fractal dimension of a air/fluid interface formed during the capillary rising of a fluid into a dense granular media.
Gontijo Guilherme L.   +5 more
doaj   +1 more source

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