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...

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...

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

Introduction: Educational environment has a great impact on student’s success, satisfaction, happiness, improvement, and job selection. In fact, inappropriate educational environments cost lots of finance. The present study aimed to compare the male and female undergraduate surgical technologists toward a quality of educational environment in Iran University of medical sciences in 2016-20...

زمینه و هدف: مؤسسات آموزشی، روش‌های مختلفی برای ارزیابی فعالیت‌های خود دارند. عوامل بسیاری از فرایند تدریس بر فرایند یادگیری تأثیر می‌گذارد. هدف از انجام مطالعه حاضر، بررسی نگرش دانشجویان دندان‌پزشکی در دانشکده‌ دندان‌پزشکی کرمان نسبت به وضعیت کنونی آموزشی و فضای یادگیری با استفاده از پرسش‌نامه DREEM (Dundee ready education environment measure) بود. روش کار: این مطالعه از نوع توصیفی- مقطعی، روی...