Results 11 to 20 of about 93,498 (290)

The generalized lognormal distribution and the Stieltjes moment problem [PDF]

open access: yes, 2012
This paper studies a Stieltjes-type moment problem defined by the generalized lognormal distribution, a heavy-tailed distribution with applications in economics, finance and related fields.
Kleiber, Christian
core   +3 more sources

Skewed distribution of spines is independent of presynaptic transmitter release and synaptic plasticity, and emerges early during adult neurogenesis

open access: yesOpen Biology, 2023
Dendritic spines are crucial for excitatory synaptic transmission as the size of a spine head correlates with the strength of its synapse. The distribution of spine head sizes follows a lognormal-like distribution with more small spines than large ones ...
Nina Rößler   +10 more
doaj   +1 more source

Correlated connectivity and the distribution of firing rates in the neocortex [PDF]

open access: yes, 2008
Two recent experimental observations pose a challenge to many cortical models. First, the activity in the auditory cortex is sparse, and firing rates can be described by a lognormal distribution.
Hromadka, Tomas   +2 more
core   +2 more sources

The mathematical formula of the intravaginal ejaculation latency time (IELT) distribution of lifelong premature ejaculation differs from the IELT distribution formula of men in the general male population [PDF]

open access: yesInvestigative and Clinical Urology, 2016
Purpose: To find the most accurate mathematical description of the intravaginal ejaculation latency time (IELT) distribution in the general male population. Materials and Methods: We compared the fitness of various well-known mathematical distributions
Paddy K.C. Janssen, Marcel D. Waldinger
doaj   +1 more source

On the Existence and Uniqueness of the Maximum Likelihood Estimators of Normal and Lognormal Population Parameters with Grouped Data

open access: yesJournal of Probability and Statistics, 2009
Lognormal distribution has abundant applications in various fields. In literature, most inferences on the two parameters of the lognormal distribution are based on Type-I censored sample data.
Jin Xia, Jie Mi, YanYan Zhou
doaj   +1 more source

The Truncated Lognormal Distribution as a Luminosity Function for SWIFT-BAT Gamma-Ray Bursts

open access: yesGalaxies, 2016
The determination of the luminosity function (LF) in Gamma ray bursts (GRBs) depends on the adopted cosmology, each one characterized by its corresponding luminosity distance.
Lorenzo Zaninetti
doaj   +1 more source

Parametric modelling of cost data: some simulation evidence [PDF]

open access: yes, 2005
Recently, commentators have suggested that the distributional form of cost data should be explicitly modelled to gain efficiency in estimating the population mean.
Box   +21 more
core   +1 more source

Research on fatigue life of steel wire ropes under impact loads based on double Pareto lognormal distribution

open access: yesAdvances in Mechanical Engineering, 2017
Fatigue damage is the most important failure mode of wire ropes, and models of cumulative fatigue damage of wire ropes under multiple impact loads have been proposed based on the principle of microdamage linear accumulation.
Ren Zhiqian, Chen Xun
doaj   +1 more source

An Approximate Closed Formula for European Mortgage Options

open access: yesTrends in Computational and Applied Mathematics, 2023
The aim of this paper is to investigate the use of close formula approximation for pricing European mortgage options. Under the assumption of logistic duration and normal mortgage rates the underlying price at the option expiry is approximated by ...
A. M. Lopez Galvan
doaj   +1 more source

Non-parametric projections of national income distribution consistent with the Shared Socioeconomic Pathways

open access: yesEnvironmental Research Letters, 2023
Understanding and projecting income distributions within countries and regions is important to understanding consumption trends and the distributional consequences of climate impacts and responses.
Kanishka B Narayan   +3 more
doaj   +1 more source

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