among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

S Shiva , MD R Sarisorkhabi , MD Received: 24 Oct, 2007 Accepted: 12 March, 2008 Abstract Background & Aims: Combination of chelating therapy regimens with regular blood transfusion has significantly improved the life expectancy of thalassemic patients. Despite progresses in treatment of these patients, growth failure, and short stature are found in significant number of them. Factors such...