Autore: Istvan Bikit

Gamma-rays originate from the decay of excited states of the atomic nuclei in a similar manner as the visible light originates from the decay of the atom itself. Gamma rays belong to the class of ion …

This book examines violence prevention programs for middle schools and their findings after implementation. The U.S. Department of Education’s Office of Safe and Drug-Free Schools (OSDFS) administers …