Based on data collected from a middle school, this study investigates how the quantity and quality of technology use aVect student learning outcomes. SpeciWcally, this study examines how technologies are used by students, what technology uses are popular among students, and what technology uses are eVective for increasing student academic achievement. Results suggest that the quantity of techno...

The Universtiy of Pretoria has been using an electronic assessment system since 1991 and a learning management system (LMS) since 1998. Both systems required urgent upgrading. In 2003 a further need arose in the Faculty of Health Sciences, for an electronic portfolio system. The Department for Education Innovation has thus implemented three new systems during the past three years: a new electro...

BACKGROUND Tracheal hypoplasia is a congenital condition described in mainly brachycephalic breeds and is one component of the brachycephalic obstructive airway syndrome (BOAS). Two radiographic methods have been described to evaluate the dimensions of the tracheal diameter in dogs and to distinguish between hypoplastic and non-hypoplastic tracheas: the tracheal lumen diameter to thoracic inlet...