For many years, the naming convention "@" has served the ARPANET user community for its mail system, and the substring "" has been used for other applications such as file transfer (FTP) and terminal access (Telnet). With the advent of network interconnection, this naming convention needs to be generalized to accommodate internetworking. A decision has recently been reached to...

Virtual organizations (VOs) are communities of resource providers and users distributed over multiple policy domains. These VOs often wish to define and enforce consistent policies in addition to the policies of their underlying domains. This is challenging, not only because of the problems in distributing the policy to the domains, but also because of the fact that those domains may each have ...

Many real-world complex systems such as social, biological, information as well as technological systems results of a decentralized and unplanned evolution which leads to a common structuration. Irrespective of their origin, these so-called complex networks typically exhibit small-world and scalefree properties. Another common feature is their organisation into communities. In this paper, we in...

Few people in this country have grasped the idea of school-leavers volunteering for social work to fill empty months before starting a career or university. Most, who have, seem to believe the young people involved are a race apart from those who spend weekends on Brighton beaches or taking drugs. To my mind, nothing could be further from the truth. Many of the motives that led me to social work?a

Since the World Wide Web is an open system, it is difficult to maintain the information about services on the Web in a centralized server. Therefore the service mediation system could be constructed by federation of service communities, in which each community provides and mediates limited number of services according to its own policy. The federation should preserve the policy of each communit...

Efficient Surgical Science for the Whole Community: Reports: DR. ROBERT B. GREENOUGH ....................... 435 The New England Intercollegiate Geological ExSome High Lights of Astronomy During the Past cursion: PROFESSOR LLOYD W. FISHER .............................. 453 Year: DR. HARLOW SHAPLEY ...................... 439 Scieztific Apparatus and Laboratory Methods: Obituary: An Electrically ...

Grid computing has many attributes that provide benefits to research communities. These include the ability to do existing research faster; enable collaborative environments; reduce costs and provide a pool of resources that creates an ability to conduct greater research. These have been identified by the Geosciences community as of significant interest and a plausible solution to some of the c...