Today Computer Supported Cooperative Work (CSCW) is used in broad areas of human cooperation. With the propagation of radio-based communication and ad hoc networking it may enter new areas of human cooperation. One important aspect is the new quality in CSCW of being independent from special network-enabled places. Another aspect is the more intuitive support of face-to-face cooperation utilizi...

Virtual reality has lead to development of many methods for interacting between real humans and virtual objects in 3D spaces. Nowadays, some new developments are made for cooperative interactions which means that several persons can act simultaneouly on shared objects. A cooperation requires new metaphors to make several persons acting on same objects possible and also to have some new feedback...

Virtual Environments (VEs) present many advantages for Collaborative Work. Users are immersed in simulation reproducing real world situation, thanks to stereoscopic glasses and large projection walls, maintaining natural human communications, sharing visualization of the same environments and objects, exchanging discoveries, ideas and suggestions. A main challenge to enhance cooperation is prov...

Enterprises cooperate more extensively with other enterprises in various forms. To enable the cooperation of multiple organizations in supply chains or virtual enterprises, configuration and set-up tools need to define the relations between partnering enterprises. In the one-of-a-kind industry, enterprises collaborate within a Virtual Enterprise (VE). For the definition of relationships among p...

This paper focuses on turbo packet combining for hybrid AF/DF multi-relay systems operating over multipleinput–multiple-output (MIMO) broadband channels. We consider virtual antenna based combining strategy that has been widely studied for the point-to-point hybrid ARQ. However, the extension of this combining strategy to hybrid AF/DF cooperative communications is not straightforward. In this p...

VEGA* reflects an Internet-based cooperation platform that provides holistic support for virtual enterprises. Using an integrated, layered framework and taking a top-down approach, an overview is given of the various, interdependent system levels. The core element is a three-layer service architecture. In addition to a ubiquitous marketspace, which serves as a portal gate for virtual collaborat...

Enterprises cooperate more extensively with other enterprises in various forms. To enable the cooperation of multiple organizations in supply chains or virtual enterprises, configuration and set-up tools need to define the relations between partnering enterprises. In the one-of-a-kind industry, enterprises collaborate within a Virtual Enterprise (VE). For the definition of relationships among p...

Students’ mobility is one of the main means for achieving internationalization of higher education, thus enhancing course quality and promoting intercultural understanding. Virtual mobility exploits ICT to enhance the opportunities of international cooperation and exchange, allowing students to take part in the activities of a foreign university without traveling. There are different types of v...

In this paper, we will analyze a massively multiplayer online game in an attempt to identify the elements of practice that enable social interaction and cooperation within the game’s virtual world. Communities of Practice and Activity Theory offer the theoretical lens for identifying and understanding what constitutes practice within the community and how such practice is manifest and transmitt...

INTRODUCTION The University of South Florida (USF) Libraries consist of five separate entities, two located at regional campuses in St. Petersburg and Sarasota and three libraries located on the main campus in Tampa. These libraries operate in a collegial, cooperative way yet each operates independently of the others. This arrangement allows the individual missions of each of the Libraries to b...