Results 31 to 40 of about 76,919 (275)

Redshift distribution of gamma-ray bursts and star formation rate [PDF]

, 2006
Aims. The redshift distribution of gamma-ray bursts collected in the BATSE Catalog is compared with the star formation rate.We aim to clarify the accordance between them. We also study the case of comoving number density of bursts monotonously increasing
Bagoly, Zsolt, I. Horváth, Mészáros, A., Horvath, I., Balázs L G, Balázs, L., Bagoly, Z., L. G. Balázs, Horváth I, Balázs, L. G., Balázs, L G, Bagoly Z, Z. Bagoly, Mészáros A, Horváth, I, Balázs, Lajos György, Mészáros, A, Bagoly, Z, Horváth, István, A. Mészáros   +19 more
core   +1 more source

Shock models governed by an inverse gamma mixed Poisson process [PDF]

, 2023
We study three classes of shock models governed by an inverse gamma mixed Poisson process (IGMP), namely a mixed Poisson process with an inverse gamma mixing distribution.
Mustaro V., Iuliano A., Barbara Martinucci, Martinucci B., Verdiana Mustaro, Antonella Iuliano   +5 more
core   +1 more source

Improved Monte Carlo methods for estimating confidence intervals for eleven commonly used health disparity measures.

PLoS ONE, 2019
Health disparities are commonplace and of broad interest to policy makers, but are also challenging to measure and communicate. The Health Disparity Calculator software (HD*Calc, v1.2.4) offers Monte Carlo simulation (MCS)-based confidence interval (CI ...
Jaeil Ahn, Sam Harper, Mandi Yu, Eric J Feuer, Benmei Liu   +4 more
doaj   +1 more source

PENANGANAN OVERDISPERSI PADA MODEL REGRESI POISSON MENGGUNAKAN MODEL REGRESI BINOMIAL NEGATIF

Media Statistika, 2011
Poisson regression is the most popular tool for modeling the relationship between a discrete data in the response variable and a set of predictors with continue, discrete, categoric or mix data.
Rio Tongaril Simarmata, Dwi Ispriyanti
doaj   +1 more source

E-Bayesian Estimation of Hierarchical Poisson-Gamma Model on the Basis of Restricted and Unrestricted Parameter Spaces

Complexity, 2023
In this study, we use the idea of the hierarchical model (HM) to estimate an unknown parameter of the hierarchical Poisson-Gamma model using the E-Bayesian (E-B) theory.
Azeem Iqbal, Laila A. Al-Essa, Muhammad Yousaf Shad, Fuad S. Alduais, Mansour F. Yassen, Muhammad Ahmad Raza   +5 more
doaj   +1 more source

Poisson Distribution Results for ?-Spirallike Functions of Order ? [PDF]

, 2022
The main objective of this organized paper is to establish the Poisson distribution conditions for the theta-spirallike function classes S-theta(gamma; psi) and K-theta(gamma; psi).
Altmkaya, Sahsene
core   +1 more source

On Gamma-Gompertz-Makeham Assurances and Life Annuities

Austrian Journal of Statistics
We focus on the gamma-Gompertz-Makeham model, and derive useful structural properties for this mortality model. We provide the basic properties like moments, remaining life expectancy, single life annuity, among many others, in closed form, and so it ...
Fredy Castellares, Silvio Patricio, Artur Lemonte   +2 more
doaj   +1 more source

Methods to evaluate the effectiveness of advanced stop lines for motorcycles in improving road safety

MethodsX, 2021
In Barcelona, Advanced Stop Lines (ASL) for motorcycles, were implemented since 2009. This paper aims to describe the process followed in determining the best statistical model to analyse the effectiveness of ASL in preventing road traffic injury ...
Elena Santamariña-Rubio, Katherine Pérez   +1 more
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source