introduction: obtaining top academic position among countries of the middle east and having advanced knowledge and ability to produce knowledge are among the most important goals set in iran’s twenty-year vision. present study aimed to determine impact factor of specialized and technical journals of iran and to compare with selected countries and provide appropriate recommendation. methods: in ...

Ab initio calculations at HF/6-31G* level of theory for geometry optimization and MP2/6-31G*//HF/6-31G* for a single point total energy calculation are reported for the importantenergy-minimum conformations and transition-state geometries of 1, 3-diazacyclohepta-1, 2-diene (2) and 1, 3-diazacycloocta-1, 2-diene (3). The C2 symmetric twist-chair (2-TC)conformation of 2 is calculated to be 7.4 kJ...

on the eve of 14th year of publication of “negin iran: a quarterly for studies of iran-iraq war” and after the release of an index for the first 28 issues of the quarterly published in 29th issue, the journal executive editor decided to release another index for the numbers of 1-50 in the new release of the quarterly to be used by the related researchers and those interested in this field of st...