The usage of mobile-phone among children increased significantly. Children are in their growing phase and cells of their body are rapidly dividing, therefore pr
Dementia is a syndrome of chronic and progressive nature, characterized by the deterioration of cognitive functions and behavior, which causes a disability and
A complete quantum mechanical model for GaAs/AlGaAs quantum well infrared photodetectors(QWIPs) is presented here. The model consisted of four parts: (1) Starti