Zobrazeno 1 - 10
of 477
pro vyhledávání: '"Melo, O."'
This work presents the spatial error model with heteroskedasticity, which allows the joint modeling of the parameters associated with both the mean and the variance, within a traditional approach to spatial econometrics. The estimation algorithm is b
Externí odkaz:
http://arxiv.org/abs/2411.13432
This research deals with the estimation and imputation of missing data in longitudinal models with a Poisson response variable inflated with zeros. A methodology is proposed that is based on the use of maximum likelihood, assuming that data is missin
Externí odkaz:
http://arxiv.org/abs/2409.11040
In the context of spatial econometrics, it is very useful to have methodologies that allow modeling the spatial dependence of the observed variables and obtaining more precise predictions of both the mean and the variability of the response variable,
Externí odkaz:
http://arxiv.org/abs/2409.08912
It has been argued for many years that models used to analyze data from crossover designs are not appropriate when simple carryover effects are assumed. Furthermore, a statistical model that could estimate complex carry-over effects in crossover desi
Externí odkaz:
http://arxiv.org/abs/2402.16362
Experimental crossover designs are widely used in medicine, agriculture, and other areas of the biological sciences. Due to the characteristics of the crossover design, each experimental unit has longitudinal observations and the presence of drag eff
Externí odkaz:
http://arxiv.org/abs/2304.02440
Publikováno v:
Statistical Methods in Medical Research. 2023;1(1-28)
A model for cross-over designs with repeated measures within each period was developed. It is obtained using an extension of generalized estimating equations that includes a parametric component to model treatment effects and a non-parametric compone
Externí odkaz:
http://arxiv.org/abs/2209.05413
In this study, we propose a family of correlation structures for crossover designs with repeated measures for both, Gaussian and non-Gaussian responses using generalized estimating equations (GEE). The structure considers two matrices: one that model
Externí odkaz:
http://arxiv.org/abs/2205.01281
Autor:
G. Zayas-Bazán, P., de Melo, O., Gutierrez Z-B, K., Santana, G., Santoyo-Salazar, J., Romero-Ibarra, J. Esaú, González, J.C., Matinaga, F.M., Contreras-Puente, G.
Publikováno v:
In Materials Science in Semiconductor Processing July 2024 177
Autor:
de Melo, O., Torres_Costa, V., Gonzalez, Y., Ruediger, A., de Melo, C., Ghanbaja, J., Horwat, D., Escobosa, A., Concepcion, O., Santana, G., Ramos, E.
Publikováno v:
Applied Surface Science 514 (2020): Article number 145875
The epitaxy of MoO2 on c_plane sapphire substrates is examined. A theoretical approach, based on density functional theory calculations of the strain energy, allowed to predict the preferred layer/substrate epitaxial relationships. To test the result
Externí odkaz:
http://arxiv.org/abs/2104.10246
Autor:
de Melo, O., Gonzalez, Y., Climent-Font, A., Galan, P., Ruediger, A., Sanchez, M., Calvo, C., Santana, G., Torres-Costa, V.
Publikováno v:
J. Phys.: Condens. Matter 31 295703 (2019)
Chemically _ driven isothermal close space vapour transport was used to prepare pure MoO2 films which were eventually converted to MoO3 by annealing in air. According to temperature_dependent Raman measurements, the MoO2/MoO3 phase transformation was
Externí odkaz:
http://arxiv.org/abs/2104.10245