Results 111 to 120 of about 6,758,042 (253)
Modeling Longevity Risk using Extreme Value Theory: An Empirical Investigation using Portuguese and Spanish Population Data [PDF]
, 2012 Extreme value theory (EVT) provides a framework to formalize the study of behaviour in the tails of a distribution. In this paper we use EVT to model the statistical behaviour of mortality rates over a given high threshold age and to estimate the ...
Bravo, Jorge, Real, Pedro
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Statistical Analysis for Competing Risks' Model with Two Dependent Failure Modes from Marshall-Olkin Bivariate Gompertz Distribution. [PDF]
Comput Intell Neurosci, 2022 Wu M, Zhang F, Shi Y, Wang Y.
europepmc +1 more source
Social Organisation Predicts Lifespan in Mammals
Ecology and Evolution, Volume 16, Issue 5, May 2026.Using Bayesian phylogenetic analyses of 1436 mammal species, we show that pair‐living and group‐living species have longer maximum lifespans than solitary species after accounting for body mass and phylogeny. Differences between pair‐ and group‐living species were small, and activity period showed weak associations.
Owen R. Jones +2 more
wiley +1 more source
Health Science Reports, Volume 9, Issue 5, May 2026.ABSTRACT Background and Aim Cardiovascular diseases (CVD) are widely accepted to be the most serious health care problem in the world. We performed a diagnostic test accuracy systematic review and meta‐analysis to establish the real‐world performance of established CVD risk prediction tools, providing high‐certainty evidence to optimize primary ...
Mohammad Aziz Rasouli +6 more
wiley +1 more source
Early postnatal growth of the spotted dolphin, Stenella attenuata, in the offshore Eastern Tropical Pacific. [PDF]
, 1984 Estimates of length at birth and early postnatal growth are made for the northern and southern populations of the offshore spotted dolphin in the offshore eastern tropical Pacific.
Hammond, P.S., Hohn, Aleta A.
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Anthropogenic disturbance and trophic interactions mediate population viability of American martens
The Journal of Wildlife Management, Volume 90, Issue 4, May 2026.We present a simulation model of the probability of collapse to <10% of carrying capacity for American marten populations over a 50‐year time frame in relation to forest disturbance due to commercial harvesting and fur‐trapping levels. Probability of collapse differed between models that assumed no effect of logging (solid line), martens living in a ...
John M. Fryxell +4 more
wiley +1 more source
On Gamma-Gompertz-Makeham Assurances and Life Annuities
Austrian Journal of StatisticsWe 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 +2 more
doaj +1 more source
On weighted exponential-Gompertz distribution: properties and application
Journal of Taibah University for Science, 2019 In this paper, we introduce a new distribution generated by an integral transform of the probability density function of the weighted exponential distribution. This distribution is called the weighted exponential-Gompertz (WE-G). Its hazard rate function
Ahmed M. T. Abd El-Bar, I. E. Ragab
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CPT: Pharmacometrics &Systems Pharmacology, Volume 15, Issue 5, May 2026.ABSTRACT Although time‐varying Cox regression modeling approaches have been developed, exposure–response analyses for time‐to‐event (TTE) endpoints often rely on static exposure covariates and may overlook the real‐world dosing variability and drug concentration fluctuations over time. To better characterize pharmacokinetic (PK) or pharmacodynamic (PD)
Chih‐Wei Lin +3 more
wiley +1 more source
The Burr XII–Gompertz Distribution: A Competing Risks Model With Applications to Lifetime Data
Journal of MathematicsIn this article, we introduce a novel four-parameter lifetime distribution that is constructed by compounding the Burr XII and Gompertz models in a sequential system and is known as the Burr XII–Gompertz distribution.
Bahman Tarvirdizade, Salman Babayi
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