This paper presents the TRES-D methodology for the development of VR application, and identifies opportunities for creating tools that are non-VR expert friendly. This methodology is based on previous approaches in the creation of virtual worlds, both on observed practice and proposed methods, and also on methods and techniques form the software engineering and computer-human interaction domain...

The objective of this study is to examine the socioeconomic and intervening determinants of fertility control in Korea. The conceptual framework applied here is based on the synthesis framework of fertility control developed by Easterlin and Crimmins. The data came from the 1974 Korean National Family Survey, which was conducted as part of the World Fertility Survey. The study focuses on the...

Several mean value identities for harmonic and panharmonic functions are reviewed along with the corresponding inverse properties. The latter characterize balls, annuli, strips analytically via these functions.

Tools such as Gopher and WWW have been developed largely to facilitate sharing of technical and corporate information at colleges, universities and research institutions. But very quickly, potential educational applications of these technologies became apparent, especially for open and distance learning. In this regard, WWW has more appeal, because of its hypermedia foundation. Its use is growi...