Buscar
Mostrando ítems 1-10 de 154
A semi-Markov multistate model for estimation of the mean quality-adjusted survival for non-progressive processes
(SPRINGER, 2009)
We discuss the estimation of the expected value of the quality-adjusted survival, based on multistate models. We generalize an earlier work, considering the sojourn times in health states are not identically distributed, ...
Estimation of the mean quality-adjusted survival using a multistate model for the sojourn times
(ELSEVIER SCIENCE BV, 2008)
In clinical trials, it may be of interest taking into account physical and emotional well-being in addition to survival when comparing treatments. Quality-adjusted survival time has the advantage of incorporating information ...
Local-Activity and Simultaneous Zero-Hopf Bifurcations Leading to Multistability in a Memristive Circuit
(2021-12-15)
In this paper, we consider a memristive circuit consisting of three elements: A passive linear inductor, a passive linear capacitor and an active memristive device. The circuit is described by a four-parameter system of ...
Modelos multiestado com fragilidade
(Universidade Federal de São CarlosUFSCarPrograma Interinstitucional de Pós-Graduação em Estatística - PIPGEsCâmpus São Carlos, 2016-03-31)
Often intermediate events provide more detailed information about the disease process or recovery, for example, and allow greater accuracy in predicting the prognosis of patients. Such non-fatal events during the course ...
Bifurcations and multistability in the extended Hindmarsh-Rose neuronal oscillator
(2016-04-01)
We report on the bifurcation analysis of an extended Hindmarsh-Rose (eHR) neuronal oscillator. We prove that Hopf bifurcation occurs in this system, when an appropriate chosen bifurcation parameter varies and reaches its ...
Interaction between economies in a business cycle model
(2022-02-01)
In this work we study the interaction between two or three nonlinear dynamical macroeconomic idealized systems. The model is a modified version of the Bouali's system. Only three economic variables were considered: foreign ...
Regression analysis of mean quality-adjusted survival time based on pseudo-observations
(JOHN WILEY & SONS LTD, 2009)
Regression models for the mean quality-adjusted survival time are specified from hazard functions of transitions between two states and the mean quality-adjusted survival time may be a complex function of covariates. We ...
A multistate joint model for interval-censored event-history data subject to within-unit clustering and informative missingness, with application to neurocysticercosis research
(2020)
We propose a multistate joint model to analyze interval-censored event-history data subject to within-unit clustering and nonignorable missing data. The model is motivated by a study of the neurocysticercosis (NC) cyst ...
Multi-state models and diabetic retinopathy
(1995)
This paper discusses the application of a multi-state model to diabetic retinopathy under the assumption that a continuous time Markov process determines the transition times between disease stages. The multi-state model ...