Results 71 to 80 of about 1,069,542 (200)

Dopamine Modulates the Rest Period Length without Perturbation of Its Power Law Distribution in Drosophila melanogaster

open access: yesPLoS ONE, 2012
We analyzed the effects of dopamine signaling on the temporal organization of rest and activity in Drosophila melanogaster. Locomotor behaviors were recorded using a video-monitoring system, and the amounts of movements were quantified by using an image ...
T. Ueno, N. Masuda, S. Kume, K. Kume
semanticscholar   +1 more source

Power-law citation distributions are not scale-free [PDF]

open access: yesPhysical Review E, 2017
We analyze time evolution of statistical distributions of citations to scientific papers published in one year. While these distributions can be fitted by a power-law dependence we find that they are nonstationary and the exponent of the power law fit decreases with time and does not come to saturation.
openaire   +3 more sources

Numerical Simulation of Intensity Fluctuations in Random Laser Systems [PDF]

open access: yesЖурнал нано- та електронної фізики, 2012
The spectral behavior of a random lasing system (TiO2 powder dispersed in Rhodamine 6 G dye solution) is calculated using numerical calculations. The total integrated intensity is calculated for different incident optical intensities, particle densities,
M.N. Bapat, Anita Sharma
doaj  

Derivation of 2D Power-Law Velocity Distribution Using Entropy Theory

open access: yesEntropy, 2013
The one-dimensional (1D) power law velocity distribution, commonly used for computing velocities in open channel flow, has been derived empirically. However, a multitude of problems, such as scour around bridge piers, cutoffs and diversions, pollutant ...
Gustavo Marini   +2 more
doaj   +1 more source

Microcanonical foundation for systems with power-law distributions [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2000
Starting from microcanonical basis with the principle of equal a priori probability, it is found that, besides ordinary Boltzmann-Gibbs theory with the exponential distribution, a theory describing systems with power-law distributions can also be derived.
Abe, Sumiyoshi, Rajagopal, A. K.
openaire   +3 more sources

Statistical Analysis of Acoustic Emission in Uniaxial Compression of Tectonic and Non-Tectonic Coal

open access: yesApplied Sciences, 2020
Tectonic coal has become an important research topic for preventing coal mine disasters and for exploring and developing coal-bed methane resources.
Rong Liu   +4 more
doaj   +1 more source

An Empirical Study of the Effect of Power Law Distribution on the Interpretation of OO Metrics

open access: yes, 2013
Context. Software metrics are surrogates of software quality. Software metrics can be used to find possible problems or chances for improvements in software quality. However, software metrics are numbers that are not easy to interpret.
Raed A. Shatnawi, Q. Althebyan
semanticscholar   +1 more source

Power-law distribution of family names in Japanese societies [PDF]

open access: yes, 1999
We study the frequency distribution of family names. From a common data base, we count the number of people who share the same family name. This is the size of the family. We find that (i) the total number of different family names in a society scales as
S. Miyazima   +3 more
semanticscholar   +1 more source

Finite-size effects in transcript sequencing count distribution: its power-law correction necessarily precedes downstream normalization and comparative analysis

open access: yesBiology Direct, 2018
Background Though earlier works on modelling transcript abundance from vertebrates to lower eukaroytes have specifically singled out the Zip’s law, the observed distributions often deviate from a single power-law slope.
Wing-Cheong Wong   +4 more
doaj   +1 more source

Limit order placement as an utility maximization problem and the origin of power law distribution of limit order prices [PDF]

open access: yes, 2006
.I consider the problem of the optimal limit order price of a financial asset in the framework of the maximization of the utility function of the investor.
F. Lillo
semanticscholar   +1 more source

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