Results 61 to 70 of about 21,896 (225)

On Order Restricted Inference in Multi‐Step Stage Life Testing for a General Family of Distributions

open access: yesNaval Research Logistics (NRL), EarlyView.
ABSTRACT Recently, k$$ k $$‐step stage life testing (SLT) has been proposed by Laumen and Cramer (2021) as a natural extension of progressive censoring with fixed censoring times (PC‐FCT) as well as of simple step‐stress accelerated life testing (SSALT).
Erhard Cramer   +2 more
wiley   +1 more source

Non-linear mixed models in the study of growth of naturalized chickens

open access: yesRevista Brasileira de Zootecnia
This study was conducted to examine the inclusion of random effects in non-linear models, identify the most suitable models, and describe the growth of naturalized chickens. Live-weight records of 166 birds of the Graúna Dourada, Nordestina, and Teresina
Vicente Ibiapina Neto   +3 more
doaj   +1 more source

Assessing pest control treatments from phenology models and field data

open access: yesPest Management Science, Volume 81, Issue 4, Page 1851-1859, April 2025.
Theoretical effect of two larvicide sprays, two delayed larvicide sprays that follow an oil treatment, mating disruption, and mating disruption plus four virus sprays on codling moth larva (brown for treated versus pink for untreated) and adult (dark green for treated versus light green for untreated) phenology.
Diego F. Rincon   +2 more
wiley   +1 more source

Analisis parameter pertumbuhan itik Magelang generasi ketiga di Balai Pembibitan Ternak Non Ruminansia Satuan Kerja itik Banyubiru

open access: yesJurnal Ilmu-Ilmu Peternakan, 2017
The aim of this research was to determine growth curve models of the third generation Magelang ducks using Gompertz and Logistic Growth Model. Individual body weight was obtained by weighing at every three days from 0 to 60 days.Growth parameters were ...
Elisabeth Nadia Yusinta   +2 more
doaj   +1 more source

Modeling of Disease Progression of Type 2 Diabetes Using Real‐World Data: Quantifying Competing Risks of Morbidity and Mortality

open access: yesCPT: Pharmacometrics &Systems Pharmacology, Volume 14, Issue 3, Page 606-615, March 2025.
ABSTRACT Type 2 diabetes (T2D) is a progressive metabolic disorder that could be an underlying cause of long‐term complications that increase mortality. The assessment of the probability of such events could be essential for mortality risk management. This work aimed to establish a framework for risk predictions of macrovascular complications (MVC) and
Hanna Kunina   +2 more
wiley   +1 more source

A Bayesian approach to Cox-Gompertz model

open access: yes, 2016
Survival analysis has a wide application area from medicine to marketing and Cox model takes an important part in survival analysis. When the distribution of survival data is known or it is appropriate to assume a survival distribution, use of a ...
ATA TUTKUN, NİHAL, DEMİRHAN, HAYDAR
core   +2 more sources

Construction of Mortality Table for Credit Life Insurance using Whittaker-Henderson Graduation Method

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika)
Indonesian Mortality Table III (2011) and Indonesian Mortality Table IV (2019) are still used as a reference for determining life insurance premiums, one of which is determining Credit Life Insurance premium rates.
Fajar Eko Prasetyo, Hyuk-Sung Kwon
doaj   +1 more source

Bridging the Divide Between Agricultural Economics and the Sustainability Sciences

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT This article is based on several decades of experience engaging in interdisciplinary research and teaching involving agronomists, climate scientists, ecologists, hydrologists and geographers, focused on ensuring the long run sustainability of local and global food systems.
Thomas W. Hertel
wiley   +1 more source

A Multivariate Gompertz-type Distribution

open access: yes, 2001
The Gompertz distribution has many applications, particularly in medical and actuarial studies. However, there has been little recent work on the Gompertz in comparison with its early investigation.
Walker, Stephen G.   +5 more
core   +1 more source

Multidimensional unipolar IRT and applications to the measurement of print exposure

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Item response theory (IRT) has been a prominent modelling framework in educational and psychological measurement. Traditional IRT models are bipolar, commonly assuming symmetric measurement link functions and symmetric trait distributions over a latent continuum unbounded at both ends. However, many measured constructs, such as print exposure,
Qi (Helen) Huang, Daniel M. Bolt
wiley   +1 more source

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