Hassan Ahmed

secondary passive attention passive attention apparent movement time perception motion perception active attention factors of attention phi phenomenon objective factors of movement perception psychology factors in perception movement attention perception subjective factors of movement perception real movement kinds of attention er modeling assignment er diagram entity relationship modeling er dbms entity relationship diagram er-diagram database er er normalization normalization database normalization 1nf 2nf and 3nf sparkilng beelzebub sparkling beelzebub