This paper proposes a modified Genetic Programming method for forecasting the mobile telecommunications subscribers’ population.Themethod constitutes an expansion of the hybridGenetic Programming (hGP)method improved by the introduction of diffusion models for technological forecasting purposes in the initial population, such as the Logistic, Gompertz, and Bass, as well as the Bi-Logistic and L...

background: although the cox proportional hazard regression is the most popular model for analyzing the prognostic factors on survival of cancer patients, under certain circumstances, parametric models estimate the parameter more efficiently than the cox model.  the aim of this study was to compare the cox regression model  with parametric models in patients with gastric cancer who registered a...

Tomato brown rugose fruit virus (ToBRFV) is an emerging pathogen affecting tomato-production systems in several countries, including Mexico. This situation involves challenges due to the negative impact on yield and lack of disease-management measures. work analyzes spatiotemporal distribution ToBRFV commercial tomato greenhouses. The presence or absence diseased plants was evaluated weekly, as...

Coffee is a significant commodity crop worldwide, and Karnataka, an Indian state with coffee-growing regions such as Chikkamagaluru, Kodagu, Hassan, major producer. also known the Land of primary location for Arabica coffee production cultivation various other spice crops areca nut, pepper, cardamom, vanilla, lime, clove, cinnamon. Despite importance production, growers encounter multiple chall...

Brazil has stood out worldwide as one of the main producers and consumers beans, which makes their cultivation important for economic social development country. As bean plant a short growth cycle, its modeling is essential optimizing management plans this crop. This can be performed by linear non-linear models, but latter have providing more information to researcher, mainly due practical inte...

As a measure of sustainability, Fisher information is employed in the Gompertz growth model. The effect different oscillatory modulations examined on system's evolution and Probability Density Function (PDF). For sufficiently large frequency periodic fluctuations occurring both positive negative feedbacks, system maintains its initial conditions. A similar PDF shown regardless values when there...

The heterogeneous and homogeneous growth (HmG) assumptions in an intensive tilapia Oreochromis niloticus pre-grow-out production were evaluated under the different stocking scenarios. Four models (von Bertalanffy, Logistic, Pütter, Gompertz) tested modified to include effect of density difference. Models with fitted using a nonlinear regression, while (HtG) parameterized quantile (0.05, 0.15, 0...