A notion which has been advanced intensively in the past two decades, is that fractal geometry describes well the irregular face of Nature. We were prompted by Marder’s recent article in Science [1], to comment here on the applicability of this wide-spread notion. Marder summarizes a simulation study of fractured silicon nitride by Kalia et. al [2] which successfully mimics experimental data, a...

active participation of students in the course of teaching/learning process is one of the essential topics which have attracted many researchers, for the students' active participation causes the students to be mentally involved, thus increasing learning. in this paper, student and teacher talk was analyzed, using flanders' interaction analysis system. this was done for the purpose of determini...

OBJECTIVE To study the correlation between limited shoulder range of motion in persons with spinal cord injury at discharge and the performance of activities, wheeling performance, transfers and participation one year later. DESIGN Multicentre prospective cohort study. SUBJECTS A total of 146 newly injured subjects with spinal cord injury. METHODS Shoulder range of motion was measured at ...