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...

In recent years, a lot of researches are done to explain the theory of goal orientation, as one of the important perspective on the antecedents and consequences of motivation. One of the most important and effective factor on goal orientation is the five main factors of personality. This study aimed to determine the relationship between the five factors of personality and goal orientation was d...

This study was carried out in order to evaluate the psychometric properties of the Persian version of the Eysenck Personality Questionnaire-Revised Short-Scale (EPQ-R S) in Iranian sample. The EPQ-R S is a 48-selfreport questionnaire to assess the dimensions of personality, neuroticism, extraversion, psychoticism. It also includes a Lie scale. The EPQ-R S and NEO Five-Factor Inventory (NEOFFI- ...

a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...

In this research, the role of family communication orientation, teacher-student interaction and personality traits in predicting the happiness of students investigated. The participants of the research were 224 male and female high school students in Shiraz who were selected by multistage cluster random sampling. The tools used in the research include the Oxford Happiness Scale (1991), the  Fam...