This paper aims to investigate the performance of a system consisting of plethysmographic sensors used to measure the human pulse (or heart rate), and ZigBee wireless networks used to collect the data in view of processing and storing. A demo system build around a MICROCHIP development kit (PICDEM Z) is described. Some conclusion derived on the basis of the observations obtained during the impl...

new technologies. The range of applications was quite wide. Don Pelz and Eileen Trzcinski (University of Michigan) looked at the implementation of microcomputers for administrative uses in social service agencies ; Rita Bush (AT&T) examined computerized technologies in the telephone company; Karol Kerns talked about developing electronic &dquo;smart cards&dquo; to control the distribution of be...

Context aware services need context of a certain quality to provide their services. The quality of context can be described using the Quality of Context (QoC) concept. There are five parameters, or dimensions, to describe the QoC: precision, freshness, temporal resolution, spatial resolution and probability of correctness. There is a relation between QoC and privacy sensitivity, because if the ...

The only thing, which can’t be changed by man, is time. One cannot get back time lost or gone Nothing can be substituted for time. Time management is actually self management. The skills that people need to manage others are the same skills that are required to manage themselves. The purpose of the present study was to explore the relation between time management and academic achievement of Hig...