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...

short story as an important literary genre in the recent decade is focused by many of young writers and literary critical with searching structure, content , artistic techniques and cognitive phenomenon of these works , we can show quantity of using some parts of storied literature from new literal techniques of the word and also we can show the usage of native, cultural and social foundation...

With the advent of technology and the need to do communications and transactions quickly, social commerce has become increasingly popular as a new way of doing business which has led to greater success for organizations. Despite the importance of social commerce and the use of social media in business, there is still no implementation roadmap that integrates the multiple dimensions of these ini...

fuzzy logic has been developed over the past three decades into a widely applied techinque in classification and control engineering. today fuzzy logic control is one of the most important applications of fuzzy set theory and specially fuzzy logic. there are two general approachs for using of fuzzy control, software and hardware. integrated circuits as a solution for hardware realization are us...

the purpose of this study was to investigate the effect of task repetition on accuracy of iranian efl learners ’speaking ability. in order to achieve this purpose, a null hypothesis was developed: there is no statistically significant difference between accuracy speaking ability in iranian efl learners by use of task repetition. ; of course i should mention that, beside this null hypothesis, an...

Introduction: The combination of mobile technology and medical expertise introduces a new feature called mobile health care, which provides new opportunities for improving patients' health. Physician's acceptance of mobile health services is an important factor in the establishment and adaption of such services. The present study investigated the factors affecting the acceptance of health servi...

Nowadays improvement of productivity along with investment in IT is the most important goal of organizations. But at same time productivity statistics shown no improvement but rather a slow growth and that is itself has caused a paradox, namely "IT productivity paradox". This paradox has led the experts to question the productivity of IT seriously. The main purpose of this study is to examine t...