An important issue in the dissemination of time-varying web data such as sports scores and stock prices is the maintenance of temporal coherency. In the case of servers adhering to the HTTP protocol, clients need to frequently pull the data based on the dynamics of the data and a user’s coherency requirements. In contrast, servers that possess push capability maintain state information pertaini...

The JISC Information Environment Service Registry (IESR) contains descriptions of collections of resources available to researchers, learners and teachers in the UK, along with technical service access details. This paper describes the data model and metadata description schema of IESR, and the services IESR provides to disseminate its records. There is a particular focus on the Open Archives I...

This article describes the ways that data from the 1997 Economic Census will be reported, both in print and in electronic media. Particular attention is given to the impact of the new North American Industry Classification System (NAICS) on the design of census reports, and to its implications for the assembly of time series from Economic Censuses past and future. Data from the Economic Census ...

Ninety-eight adnexal lymphocytic tumours of indeterminate nature have been followed up for at least 5 years. Both non-disseminating and disseminating tumours have either very similar or identical histopathological features. It is not possible to make a definitive diagnosis when the lesions are first seen, and a conclusion can be reached only after a prolonged follow-up. The nature of the non-di...

Lately there has been increasing interest in the use of data dissemination as a means for delivering data from servers to clients in both wired and wireless environments. Using data dissemination, the transfer of data is initiated by servers, resulting in a reversal of the traditional relationship between clients and servers. In previous papers, we have proposed Broadcast Disks as a model for s...

In this paper, we address the problem of propagating data updates to a large number of mobile clients. Typically, mobile clients operate autonomously, i.e., disconnected from data servers, for prolonged periods of time relying on locally replicated corporate data (e.g., database views, file systems). From time to time, they need to refresh their replicas with data changes registered at a centra...