Weigang Wang

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In this paper, we present a cooperative hypermedia based process support system focusing on flexible business processes. An analysis of the communication, coordination and cooperation requirements of business processes reveals a gap in current computer support. We propose to address these requirements by extending a cooperative hypermedia system with(More)
Access control needs to be more flexible and fine-grained to support cooperative tasks and processes performed by dynamic teams. This can be done by applying state-of-theart role-based access control (RBAC) technology. This paper examines how to integrate RBAC in a team-based organization context and how to apply such access control to hypermedia(More)
One important facet of current hypertext research involves using knowledge-based techniques to develop and maintain document structures. A semantic net is one such technique. However, most semantic-net-based hypertext systems leave the linking consistency of the net to individual users. Users without guidance may accidentally introduce structural and(More)
In current work ow and groupware systems, there is a gap between formal and informal coordination mechanisms. To ll the gap, exible coordination support covers the whole spectrum of informal and formal coordination mechanisms. In this paper, a exible coordination model integrating formal and informal coordination mechanisms is presented. Methods of using(More)
Tailoring groupware has to deal with adapting properties of a shared information space as well as with adapting properties of the cooperation support to the group's needs. In this paper, an approach for tailoring both aspects of groupware in an integrated fashion is proposed. This approach uses cooperative hypermedia as a unifying representation of shared(More)
Platinum (Pt) metal, being nonmagnetic and with a strong spin-orbit coupling interaction, has been central in detecting the pure spin current and establishing most of the recent spin-based phenomena. Magnetotransport measurements, both electrical and thermal, conclusively show strong ferromagnetic characteristics in thin Pt films on the ferromagnetic(More)
The Many Using and Creating Hypermedia (MUCH) system is based on the Dexter model and treats the storage layer as a semantic net. The MUCH system provides a number of recommended link types for representing application domain concepts, such as thesauri, documents, and annotations. Users of the system are expected to use those link types in the course of(More)
The WWW makes learning materials widely accessible and provides an environment where people can learn across time and space. However, the simple read-only information structure on the Web provides little or very limited guidance to learners, especially when they want to learn how to do something through interaction with computers and other people. We(More)
The Web has been widely used as a platform for asynchronous collaboration. However, Web based synchronous groupware are still rare, especially those using standard Web browser as front-end. From a technical and social protocol co-evolution perspective, this work examines the Web technical protocol evolution and proposes an AJAX based approach to creating(More)
Ghrelin receptor has been shown to be expressed along the human gastrointestinal tract. Recent studies showed that ghrelin and a synthetic ghrelin receptor agonist improved weight gain and lean body mass retention in a rat model of cancer cachexia by acting on ghrelin receptor, that is, growth hormone secretagogue receptor (GHS-R). This study aims to(More)