Abstract:Nanostructured titania was synthesized by colloidal and polymeric sol-gel routes. Stable colloidal and polymeric titania sols were prepared by adjusting the proper values of the acid/alkoxide and the water/alkoxide molar ratios. The properties of sols were determined by dynamic light scattering technique and synthesized titania was characterized by thermogravimetry and differential the...

introduction: the rate of mild mental retardation is about 2 percent among school children. these children are able to satisfy their needs and meet the community expectations. therefore, educational programs must be designed in such a way that they help this population develop suitable and effective social relations. the aim of the present study was to investigate the efficacy of drama therapy ...