The application and use of telelearning technologies in post-secondary education is evolving from peripheral activities to central approaches. Educators are re-discovering collaborative education as they understand how electronic conferencing can support and empower teaching and learning. As students build knowledge collaboratively, asynchronous conferencing elevates engagement and participatio...

Video conferencing allows people to collaborate and share experiences across a variety of work and playrelated scenarios. Mobile video conferencing enables entirely new usage scenarios where one or more parties are physically moving around in a large activity environment. One major benefit of mobile devices is that they can potentially support activities that focus on large environments—activit...

Cloud computing is an emerging paradigm with three main facets: Software as a Service (SaaS), Platform as a Service (PaaS) and Infrastructure as a Service (IaaS). Several benefits are expected from cloud-based conferencing (e.g. efficiency in resource usage, easy introduction of new conferencing applications). This paper proposes a publication and discovery architecture for the interactions bet...

Three studies of collaborative activity were conducted as part of research in developing multimedia technology to support collaboration. One study surveyed users’ opinions of their use of video conference rooms. Users indicated that the availability of the video conference rooms was too limited, audio quality needed improvement, and a shared drawing space was needed. A second study analyzed vid...

This paper applies the mean-variance portfolio optimization (PO) approach and the stochastic dominance (SD) test to examine preferences for international diversification versus domestic diversification from American investors’ viewpoints. Our PO results imply that the domestic diversification strategy dominates the international diversification strategy at a lower risk level and the reverse is ...

T his paper ascertains the extent of mispricing in equity portfolios, mispricing-divestment relation, and the role of African equities as risk diversification strategies during commodity market turbulence. Following Baur and Lucey (2010), one identifies an arbitrary commodity market crisis to be 1%, 5%, and 10% declining moments in returns. However, their approach is extended by usin...

the research problem investigated in this paper is modeling volatility and analyzing risk and return’s relationship in tehran stock exchange using garch-family models including garch(1,1), garch(2,2), egarch(1,1), pgarch(1,1), tgarch(1,1), garch(1,1)-m and cgarch(1,1). using the daily returns of tehran stock exchange companies, we focused on two portfolios of all the companies during a 10-year-...

This paper covers the use of technology to support three aspects of Alternative Assessment: Observations of Student Learning, Performance Assessments, and Electronic Portfolios. Discussion includes the differences between Performance Assessments and Portfolios, definition of electronic portfolios, the benefits of electronic portfolios, along with the author's five-stage and fivelevel electronic...