In this paper, we take the resting T cells into account and interpret the progression and regression of tumors by a predator-prey like tumor-immune system.First, we construct an appropriate Lyapunov function to prove the existence and uniqueness of the global positive solution to the system.Then, by utilizing the stochastic comparison theorem, we p

The paper presents an approach to estimate parameters of a local stationary AR(1) time series model by maximization of a local likelihood function.The method is based on a propagation-separation procedure that leads to data dependent weights defining the local model.Using free propagation of weights under homogeneity, the method is capable of Flush

The syncytiotrophoblast (STB) that forms the epithelial covering of the placental villous tree has a unique cell biology on account of its syncytial nature.The tissue is in a terminally-differentiated, postmitotic state, and expands through the recruitment by fusion of underlying progenitor cytotrophoblast cells.This process occurs from the time of

The development of information and communication technology (ICT) in the 21st century makes it easier for students to be more active in the learning process.Physics learning materials are needed to support the problem-based learning process in high school.This study aims to produce e-learning models for problem-based learning on Heat and Thermodyna