Results 41 to 50 of about 251,563 (274)

The bimodal character of stock distribution

open access: yesSouth African Journal of Business Management, 2001
The bimodal character of stocks is demonstrated when they are classified according to their style. Stocks are often assigned, on the basis of some valuation parameter, uniquely as either value or growth even though, over time, changes in a stock’s-growth
A. G. Frank
doaj   +1 more source

A Bimodal Lognormal Distribution Model for the Prediction of COVID-19 Deaths

open access: yesApplied Sciences, 2020
The paper presents a phenomenological epidemiological model for the description and prediction of the time trends of COVID-19 deaths worldwide. A bimodal distribution function—defined as the mixture of two lognormal distributions—is assumed to model the ...
Paolo S. Valvo
doaj   +1 more source

Bimodal Infrared Colors of the M87 Globular Cluster System: Peaks in the Metallicity Distribution

open access: yes, 2007
The globular cluster (GC) systems of many galaxies reveal bimodal optical color distributions. Based on stellar evolutionary models and the bimodal colors and metallicities of Galactic GCs this is thought to reflect an underlying bimodal metallicity ...
Kundu, Arunav, Zepf, Stephen E.
core   +1 more source

Distributional Learning of Lexical Tones: A Comparison of Attended vs. Unattended Listening. [PDF]

open access: yesPLoS ONE, 2015
This study examines whether non-tone language listeners can acquire lexical tone categories distributionally and whether attention in the training phase modulates the effect of distributional learning.
Jia Hoong Ong   +2 more
doaj   +1 more source

Conformations of polydisperse polymer solutions : bimodal distribution [PDF]

open access: yesJournal de Physique, 1981
We use scaling arguments to construct the ’’phase diagram’’ of an athermal bimodal solution; i.e., a ternary system composed of long chains, short chains, and solvent. Qualitatively, the presence of short chains reduces the effective solvent quality as experienced by the long chains.
Joanny, J.-F.   +3 more
openaire   +2 more sources

Curve fitting of the corporate recovery rates: the comparison of Beta distribution estimation and kernel density estimation. [PDF]

open access: yesPLoS ONE, 2013
Recovery rate is essential to the estimation of the portfolio's loss and economic capital. Neglecting the randomness of the distribution of recovery rate may underestimate the risk.
Rongda Chen, Ze Wang
doaj   +1 more source

Modelling Bimodal Data Using a Multivariate Triangular-Linked Distribution

open access: yesMathematics, 2022
Bimodal distributions have rarely been studied although they appear frequently in datasets. We develop a novel bimodal distribution based on the triangular distribution and then expand it to the multivariate case using a Gaussian copula. To determine the
Daan de Waal   +3 more
doaj   +1 more source

Rapid learning of visual ensembles [PDF]

open access: yes, 2017
open3siWe recently demonstrated that observers are capable of encoding not only summary statistics, such as mean and variance of stimulus ensembles, but also the shape of the ensembles.
Campana, Gianluca   +2 more
core   +1 more source

Nonequilibrium phase transitions and stationary state solutions of a three-dimensional random-field Ising model under a time dependent periodic external field

open access: yes, 2012
Nonequilibrium behavior and dynamic phase transition properties of a kinetic Ising model under the influence of periodically oscillating random-fields have been analyzed within the framework of effective field theory (EFT) based on a decoupling ...
A. I. Larkin   +5 more
core   +2 more sources

An analytical representation of raindrop size distribution in a mixed convective and stratiform precipitating system as revealed by field observations

open access: yesAtmospheric Science Letters, 2023
This study investigated a rainfall event under a typhoon influence using a 2D video disdrometer and weather radar observations to characterize raindrop size distribution (DSD) in a mixed convective and stratiform precipitating system.
Megumi Okazaki   +4 more
doaj   +1 more source

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