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...

this research is about the political economy of china in central asia. in this research the political & economic interactions affected on chinas political economy in central asia are examined. chinas goal of presence in central asia including political-security, economic and energy goals is described in one part. in another part, the trade relations between china and central asian countries ar...

The main purpose of this paper is to develop the model of work-life balance in Mazandaran Province Gas Company as a service and project-oriented company. In the present study, a qualitative method based on grounded theory strategy has been used, because the researcher has used systematically collected conceptual data to explain the model. The field method was used for data collection by intervi...

the main purpose of this study was to investigate any relationship between high school efl teachers metaphorical understandings of their role in class and their self-efficacy beliefs. teachers metaphors were elicited through two different prompts: one picturing what they believed a language teacher should be like in class, and the other demonstrating what they are actually like in class; such...

one of the most important number sequences in mathematics is fibonacci sequence. fibonacci sequence except for mathematics is applied to other branches of science such as physics and arts. in fact, between anesthetics and this sequence there exists a wonderful relation. fibonacci sequence has an importance characteristic which is the golden number. in this thesis, the golden number is observed ...

The purpose of this study was to present a model of export performance development of ‎farmed shrimp in Iran. The research method is qualitative and is based on ‎Grounded Theory. Theoretical sampling was performed using snowball technique based on ‎which, 16 interviews were conducted with the scientific and practical experts of the Iranian ‎shrimp industry (Fisheries Organization managers, Iran...

Introduction: Studies show that the concept of urban self-organization can pave the way for researchers to achieve actual citizen participation. Despite the importance of this issue, there is a significant cognitive gap in this field in Iran. Due to the contextual nature of urban self-organization, to use this concept in the development of the country's neighborhoods, one must first understand ...