Results 81 to 90 of about 10,188 (188)

Generalized Gompertz-Power Series Distributions

open access: yesHacettepe Journal of Mathematics and Statistics, 2015
In this paper, we introduce the generalized Gompertz-power series classof distributions which is obtained by compounding generalized Gompertz and power series distributions. This compounding procedure follows same way that was previously carried out by [25] and [3] in introducing the compound class of extended Weibull-power series distribution and the ...
TAHMASEBİ, Saeed, JAFARİ, Ali Akbar
openaire   +2 more sources

On Gompertz's Law of Mortality [PDF]

open access: yesThe Assurance Magazine and Journal of the Institute of Actuaries
I have a suspicion that Mr. Edmonds intends the fifteen pages on the “Law of Human Mortality,” which appear in the last Number of this Journal, to stand in place of an answer to my remarks “On an unfair suppression of due acknowledgment to the writings of Mr.
openaire   +2 more sources

Cholecysto-Colonic Fistula: A Rare Case [PDF]

open access: yesLibyan Journal of Medicine, 2007
A 72 year old female was referred by her general practitioner (GP) on the urgent two- week waiting list with a history of weight loss, diarrhoea and a mass on the right upper quadrant with a possible underlying malignancy.
Henry Gompertz, Abdulmajid Ahmed Ali
doaj  

Gamma-Gompertz life expectancy at birth

open access: yesDemographic Research, 2013
BACKGROUND The gamma-Gompertz multiplicative frailty model is the most common parametric modelapplied to human mortality data at adult and old ages. The resulting life expectancy hasbeen calculated so far only numerically.
Trifon I. Missov
doaj  

ON THE MOMENTS OF THE 3-PARAMETER GOMPERTZ DISTRIBUTION

open access: yesBarekeng
Gompertz distribution is a classical probability distribution extensively used in actuarial science, reliability, and survival analysis. Gompertz distribution also plays a role in various fields, such as biology, economics, and marketing analysis.
Moch Taufik Hakiki   +3 more
doaj   +1 more source

Contribution Factors on Long- term and Short- term Survival of Thalassemia Major Patients

open access: yesJournal of Biostatistics and Epidemiology, 2021
Background: Thalassemia major is an important health problem in Mediterranean countries, placing a tremendous emotional, psychological, and economic burden.
Sevda Riahifar   +5 more
doaj  

Modeling the Number of COVID-19 Total Cases in Iran Using Gompertz and Logistic Growth Curves

open access: yesJournal of Biostatistics and Epidemiology, 2021
Background and Aim:  The growth curve are time dependece regression models  which commonly are useful in describing the rapid growth of total cases or deaths in a pandemic situation Methods & Materials: The Gompertz and logistic functions are useful ...
Hossein Zamani
doaj  

Application of Gompertz-Poisson Distribution in LifetimeTheory

open access: yesپژوهش‌های ریاضی, 2017
Gompertz-Poisson distribution is a three-parameter lifetime distribution with increasing, decreasing, increasing-decreasing and unimodal shape failure rate function and a composition of Gompertz and Poisson distributions cut at zero point that in this ...
Shahram Yaghoubzadeh Shahrestani
doaj  

The New Gompertz Distribution Model and Applications

open access: yesSymmetry
The Gompertz distribution has long been a cornerstone for analyzing growth processes and mortality patterns across various scientific disciplines. However, as the intricacies of real-world phenomena evolve, there is a pressing need for more versatile probability distributions that can accurately capture a wide array of data characteristics. In response
Ayse Metin Karakas, Fatma Bulut
openaire   +1 more source

A unifying theory of aging and mortality

open access: yesScientific Reports
In this paper, we advance the network theory of aging and mortality by developing a causal mathematical model for the mortality rate. First, we show that in large networks, where health deficits accumulate at nodes representing health indicators, the ...
Valentin Flietner   +5 more
doaj   +1 more source

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