Results 81 to 90 of about 6,758,042 (253)

A Novel Gompertz-Type Distribution with Applications to Radiological Dose and Pharmacokinetic Data

Mathematics
This study introduces a novel four-parameter lifetime distribution constructed within the Topp–Leone Power Gompertz framework. Owing to its flexible structure, the proposed model accommodates a wide range of density shapes and hazard-rate patterns ...
Ayşe Metin Karakaş, Fatma Bulut, Sultan Şahin Bal   +2 more
doaj   +1 more source

Modelling the lactation curve of dairy cows using the differentials of growth functions [PDF]

, 2008
Descriptions of entire lactations were investigated using six mathematical equations. comprising the differentials of four growth functions (logistic. Gompertz, Schumacher and Morgan) and two other equations (Wood and Dijkstra).
Bannink, A., France, J., Kebreab, E., Lopez, S., Nasri, M.H.F., Odongo, N.E.   +5 more
core   +3 more sources

ON GENERALISATION OF GOMPERTZ-MAKEHAM DISTRIBUTION

Indonesian Journal of Statistics and Its Applications, 2020
In this paper an exponentiated generalised Gompertz-Makeham distribution. An exponentiated generalised family was introduced by Codeiro, et. al., which allows greater flexibility in the analysis of data. Some Mathematical and Statistical properties including cumulative distribution function, hazard function and survival function of the distribution are
Akinlolu Olosunde, Tosin Adekoya
openaire   +2 more sources

Assessing pest control treatments from phenology models and field data

Pest 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, Javier Gutierrez‐Illan, David W. Crowder   +2 more
wiley   +1 more source

The Generalized Gompertz-G Family of Distributions: Statistical Properties and Applications

UMYU Scientifica Journal
This research aimed at presenting a new statistical model called the Generalized Gompertz-G family of distribution via the method of Alzaatreh, which introduces additional shape parameters for any baseline distribution.
Jibril Yahaya Kajuru, Hussaini Dikko Garba, Aminu Mohammed Suleiman, Aliyu Fulatan Ibrahim   +3 more
doaj   +1 more source

An Iterated Local Search Algorithm for Estimating the Parameters of the Gamma/Gompertz Distribution

Modelling and Simulation in Engineering, 2014
Extensive research has been devoted to the estimation of the parameters of frequently used distributions. However, little attention has been paid to estimation of parameters of Gamma/Gompertz distribution, which is often encountered in customer lifetime ...
Behrouz Afshar-Nadjafi
doaj   +1 more source

A reaction-diffusion model for the growth of avascular tumor

, 2001
A nutrient-limited model for avascular cancer growth including cell proliferation, motility and death is presented. The model qualitatively reproduces commonly observed morphologies for primary tumors, and the simulated patterns are characterized by its ...
A. Brú, A. Friedman, D. Hanahan, E. De Angelis, G. I. Evan, G. J. Pettet, H. A. Levine, I. Golding, L. A. Liotta, L. Israel, M. J. Vilela, M. L. Martins, M. Scalerandi, M. Scalerandi, N. Bellomo, P. C. Nowell, R. L. Mendes, S. C. Ferreira, S. C. Ferreira Jr., S. C. Ferreira Jr., S. S. Cross, T. Sato, W. H. Clark, Y. Kozlovsky   +23 more
core   +1 more source

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

CPT: 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, Stefan Franzén, Maria C. Kjellsson   +2 more
wiley   +1 more source

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

Journal 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, Mahboobe Rasouli, Jamileh Abolghasemi, Moein Yoosefi, Azita Azarkeivan, Asieh Ashouri   +5 more
doaj  

Generating Survival Times to Simulate Cox Proportional Hazards Models [PDF]

, 2003
This paper discusses techniques to generate survival times for simulation studies regarding Cox proportional hazards models. In linear regression models, the response variable is directly connected with the considered covariates, the regression ...
Augustin, Thomas, Bender, R., Blettner, Maria   +2 more
core   +2 more sources