From videocassette to video stream: Issues involved in re‐purposing an existing educational video

Conventional video recordings can be converted into video streams but the process can be complex and problematic. The authors’ experience of re‐purposing an existing video, Back Care for Health Professionals, for streaming is used to illustrate what was involved and to highlight the important issues. Financial, legal, technical and pedagogic issues are examined

Accessing and engaging with video streams for educational purposes: experiences, issues and concerns

Video streaming has the potential to offer tutors a more flexible and accessible means of incorporating moving images into learning resources for their students than conventional video. Consideration is given to this assertion by drawing upon the experiences of staff and evidence from students at the University of Southampton in the use of a video, Back Care for Health Professionals, before and after it was streamed. The resulting case study highlights various issues and concerns, both logistical and pedagogic. These include ease of access, the form and frequency of guidance with respect to technical matters, the use of multiple channels of communication to convey key messages about the availability and value of the video, and the provision of demonstrations or 'tasters'. In other words, what some might regard as the 'softer' aspects of technological developments should receive at least as much attention as the 'harder'

Nicotine treatment decreases food intake and body weight via a leptin-independent pathway in Psammomys obesus

It has been reported previously that leptin may be involved in nicotine\u27s ability to reduce body weight. Our aim was to investigate whether the anorexic action of nicotine is related to the actions of leptin by utilizing lean leptin-sensitive and obese leptin-resistant Psammomys obesus. Lean and obese P. obesus were assigned to receive nicotine sulphate at 6, 9 or 12 mg/day or saline (control) for 9 days (n = 6-10 in each group), administered using mini-osmotic pumps. Food intake, body weight, plasma leptin concentrations, plasma insulin and blood glucose were measured at baseline and throughout the study period. Nicotine treatment reduced food intake by up to 40% in lean and obese P. obesus. Plasma leptin levels fell significantly only in lean nicotine-treated animals, whereas no changes were observed in obese nicotine-treated animals. However, both lean and obese nicotine-treated animals had similar reductions in body weight. Our results show that nicotine has dramatic effects on food intake and body weight, however, these changes appear to be independent of the leptin signalling pathway.<br /