See You Again Next Week
Suggests that student tutoring may provide a partial solution to the high attrition rate in education plus training for 16‐18‐year‐olds in Britain. Focuses on the Pimlico Connection – a student tutoring scheme initiated by Imperial College, London in 1975 – in which students act as volunteer tutors in local primary and secondary schools. Evaluates the scheme, in which 1,300 volunteer students assisted nearly 15,000 school pupils, and concludes that, with appropriate commercial backing, effective management and willing participants, student tutoring has great potential for raising schoolchildren′s aspirations.
The perspectives and experiences of Hong Kong preschool teacher mentors: implications for mentoring
Little research has been done on the choices of mentors when they are offered a comprehensive range of roles. The mentors in this study were in their first attempt as mentors and did not have an assigned ‘role’. They were involved in a mentoring course that sought to facilitate the placement of in‐service teachers and school–institute partnerships. Findings suggested that there was a tendency of the mentors to take an authoritarian role on the rights and wrongs of protégés' teaching while managing to maintain trust and warm relationships. A particular interaction pattern between the mentors and protégés emerged. There were signs of a clear preference for performing the role of guiding teaching evaluations and the mentor teachers had a very positive attitude towards providing ‘assistance’ to the less experienced teachers. Nevertheless, room for the development of flexibility, creativity and initiative on the part of the protégés was limited by a number of contextual factors.
Investigation of scatter radiation of non-circular X-ray scan trajectories
Modern interventional X-ray devices are highly maneuverable and allow complex 3D imaging trajectories. New scan trajectories enable not only optimized object sampling but also introduce new approaches for dynamic 3D imaging. In this paper, we investigated the scatter radiation of two different scan trajectories. The scatter radiation was sampled by a rail setup with dosimeters at defined positions. After data analysis, contour maps were generated which show for four exemplary heights the scatter radiation distribution. The alternative scan trajectory showed smaller dose exposures at heights correlated to upper torso and head areas of a model physician. Keywords—Image acquisition, alternative scan trajectory, circular tomosynthesis, scatter radiation distribution