Physical interpretation of MIMO transmissions

Information theoretical analysis has shown that the application of multiple antennas at both sides of the wireless communication link can greatly improve the capacity/throughput. Although many mathematical analyses are performed on such a system, generally referred to as a Multiple-Input Multiple-Output (MIMO) system, a physical interpretation of the MIMO principle is still lacking in literature. In this paper, a physical interpretation is presented by which it is shown that a given MIMO system is more robust in richly-scattered environments

A correlational study of social skills, problem behaviors and academic competence among first grade students

The purpose of this study was to examine the relationship between social skills functioning, problem behaviors and academic competence among elementary school children. Thirty-seven first grade students were subjects in the study. The Social Skills Rating System was used to measure each subject\u27s social skills functioning, problem behaviors and academic competence. The Pearson product-moment correlation coefficient was calculated to determine if there was a correlation between the variables. The results of the study indicated a significant positive correlation between social skills functioning and academic competence. A significant negative correlation was found between social skills functioning and problem behaviors and also between problem behaviors and academic competence

Posttraumatic stress disorder in late life

Beekman, A.T.F. [Promotor]Deeg, D.J.H. [Promotor]Dyck, R. van [Promotor]Beurs, E. de [Copromotor