in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...

What id basic in this article is that motivation is very important for managers to understand, since managers must channel people's motivation, so they will achieve personal and organizational goals, However, people's abilities and role perception are also important factors in how well they will perform. In this article we have followed the evolution path of the motivational theories from the ...

since its introduction in 1959, translation quality assessment (tqa) has been among the most addressed research topics in translation studies. during recent years, there has been a crucial increase on the study of tqa. various methods have come on scene. although these methods are based on scientific theories, most of them have remained at the level of theory. juliane house’s model is among tho...