A quartet in E : investigating collaborative learning and tutoring as knowledge creation processes

This paper is a short report of a continuing international study that is investigating networked collaborative learning among an advanced community of learners engaged in a master’s programme in e-learning. The study is undertaking empirical work using content analysis (CA), critical event recall (CER) and social network analysis (SNA). The first two methods are employed in the work reported in this paper. We are particularly interested in knowledge creation among the participants as they engage in action research for their master’s work. At the same time, another underlying aim of the main study is to develop methodology, enrich theory and explore the ways in which praxis (theory informed tutoring and learning on the programme) and theory interact as we try to understand the complex processes of tutoring and learning. The paper reports some of the current findings of this work and discusses future prospects

Superpressure balloon flights from Christchurch, New Zealand, July 1968 - December 1969

Strain gages on superpressure balloon flights from Christchurch, New Zealand - Jul. 1968 to Dec. 196

Performance Differences between Natural-Ventilated and Tunnel-Ventilated Finishing Facilities

Based on farm-level data from 744,500 head of pigs finished in confinement, the performance of pigs housed in tunnel-ventilation facilities was shown to be superior to that of pigs housed in natural-ventilation facilities, as measured by both daily feed consumption and feed conversion. This, in turn, resulted in higher average daily gain, a lower cull rate, and a lower feed cost per cwt of gain. The lower cost of gain, together with the reduced number of cull hogs and the extra 9.4 lb of market weight sold, are significant economic advantages that resulted in an estimated higher net return of $5.61 per pig for each group fed in tunnel housin