This paper explores how positioning theory can be used to understand intersubjective meaning-making in CSCL environments. We analyzed asynchronous conversations of three discussion groups in a learning environment designed to teach team process skills. Analysis of the storylines, speech acts and positions taken up by each group provided insights as to how students made meaning in this learning ...

PURPOSE To facilitate assessing brain tumor growth and progression of stroke lesions by reproducible slice positioning in human head magnetic resonance (MR) images, a method for prospective registration is proposed that adjusts the image slice position without moving the patient and with no additional scans. MATERIALS AND METHODS The gradient reference frame of follow-up examinations was adju...

We now describe the difference in technology between a satellite positioning system and a terrestrial positioning system. Mathematics is important to the deployment and usage of satellites. There is a combination of different types of mathematics. Processing digital data extracted from satellite signals requires deterministic mathematics. These signals pass through the atmosphere and fluid mech...

One application in structural engineering is measuring the movement of suspension bridges. Under unfavourable wind conditions or heavy traffic loads cable suspension bridges may move up to a few metres. Therefore a positioning system used to monitor bridge movements can provide valuable information. For such monitoring applications it is desirable for the positioning system to deliver equal pre...