attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...

abstract english language learning in iran has become significant in recent years, and english has been included in the curriculum of iranian schools and universities, and considerable attention has been paid to this language in our society. nevertheless, teaching and learning english in iranian schools has not been able to satisfy the specified goals, so different efl institutes have been est...

we have two part in this thesis, at first: the interaction of native calf thymus dna (ct-dna) with two anthraquinones including quinizarin (1,4- dihydroxy anthraquinone) and danthron (1,8- dihydroxy anthraquinone) in a mixture of 0.04 m brittone-robinson buffer and 50% of ethanol were studied at physiological ph by uv-vis absorption, florescence, circular dichroism spectroscopic methods, viscos...

پیشینه: داروهای ضدالتهاب غیراستروئیدی اساسا به عنوان کاهش دهنده ی درد جهت تسکین درد و کنترل التهاب استفاده می شوند. مطالعات متعدد اپیدمیولوژی، کلینیکی و آزمایشگاهی اشاره دارند به اینکه داروهای nsaid از قبیل ایبوپروفن پیشرفت و گسترش تعدادی از تومورها را مهار می کنند. استفاده ی طولانی مدت از ایبوپروفن و دیگر داروهای nsaid با کاهش خطر سرطان های پروستات، کولون، پستان و ریه همراه بوده است. در مطالعه...