نتایج جستجو برای: plus its challenges
تعداد نتایج: 2287249 فیلتر نتایج به سال:
introduction: the purpose of this in vitro study was to evaluate three common gutta-percha solvents’ effectiveness in dissolving three different types of root canal sealers. materials and methods: the solubility of three different root canal sealers (ah plus, apexit plus and endoflas fs) was assessed in xylene, refined orange oil, tetrachloroethylene and distilled water (control). one-hundred t...
during the recent decades, urban management in iran has increasingly confronted numerous challenges due to different kinds of social, cultural, political, executive, financial, and legal factors. the present study is going to specify and analyze the aforementioned challenges in the domain of the urban environment in order to determine how far they have been effective, how they have been priorit...
This paper proposes a new paradigm for dealing with scientific knowledge in general, and publications in particular. The paradigm aims at changing the way in which knowledge is produced, disseminated, evaluated, and consumed. A formal model is proposed and the issues of credit attribution, copyrights and licensing, which are crucial for the success of any new model, are addressed.
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