the history of plant’s used for mankind is as old as the start of humankind. initially, people used plants for their nutritional proposes but after the discovery of medicinal properties, this natural ?ora became a useful source of disease cure and health improvement across various human communities. berberis vulgaris is one of the medicinal plants used in iranian traditional medicine. berberis ...

abstract the present study was conducted to investigate the effectiveness of a rather newly developed method in language teaching that is the use of paragraph reading task and whole reading task and their effects on improving efl learner’s speaking ability. to fulfill the purpose of the study, first 90 participants studying their course at sa eedi high school in tehran were chosen by means of ...

The revolution is the broadest and fastest change in a society, which is both the result of change and a factor for subsequent changes; The present article with a comparative method and library tools; Aiming to make a comparative study of the approach of Shiite and Sunni Muslim thinkers towards the Islamic Revolution. Research findings show that in the minds of Sunni thinkers, the priority is t...

Egypt's upheavals in 2011 that led to overthrow the ruling regime and beginning a new period in this country’s political system, as a revolution have reasons for its occurrence, grounds, results, consequences and agents.This paper attempts to answer this question that how Muslim Brotherhood, as a social and political force, has been influential in advancing the Egypt's revolution. In response t...

the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...

abstract this study aimed at investigating the possible relationship between self-assessment in writing and self-regulation of iranian efl learners. the main purpose of the study was not only to report and inform about this relationship, but also to investigate and find practical outcomes of the incorporation of self-assessment in writing, such as improving writing skill. the research was carr...

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...