abstract the present study deals with a comparison between reactive and pre-emptive focus-on-form in terms of application and efficiency. it was conducted in an intermediate english class in shahroud. 15 male learners participated in this research and their age ranged from 18 to 25. a course book, new interchange 3, and a complementary book were used. every session the learners gave lectures o...

Objective: Reaching to high economic growth has always been a concern for economic policy makers in developing countries including Iran. Since labor productivity is one of the most important sources of economic growth, policies are targeted to boost labor productivity in most countries. For realization of this aim, there is a special consideration to health improvement policies because hea...

The growth and development of higher education is a striking feature of the modern world. The formation and development of higher education has been the subject of scholarly inquiry across the humanities and social sciences. Here the key question is: what is the theoretical bases of the growth and expansion of higher education? However, the article seeks to explain the phenomena from several pe...

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...

abstract: in this thesis, we focus to class of convex optimization problem whose objective function is given as a linear function and a convex function of a linear transformation of the decision variables and whose feasible region is a polytope. we show that there exists an optimal solution to this class of problems on a face of the constraint polytope of feasible region. based on this, we dev...

the issue of curriculum and syllabus evaluation and revision has been in center of attention right from when curriculum came into attention of educational institutions. thus everywhere in the world in educational institutions curricula and syllabi are evaluated and revised based on the goals, the needs, existing content, etc.. in iran any curriculum is designed in a committee of specialists and...

Objective: Reaching to high economic growth has always been a concern for economic policy makers in developing countries including Iran. Since labor productivity is one of the most important sources of economic growth, policies are targeted to boost labor productivity in most countries. For realization of this aim, there is a special consideration to health improvement policies because hea...