INTRODUCTION Recent studies suggest that 23% of adult Newfoundlanders do not have a regular doctor. Using data from the 1995 Newfoundland Panel on Health and Medical Care study, we examined the urban, semi-urban and rural differences in the characteristics of adult (age 20 and over) Newfoundlanders who did and did not have a regular doctor. METHODS We used chi2 tests and logistic regression t...

We describe LOCALE, a system that allows cooperating information systems to share labels for photographs. Participating photographs are enhanced with a geographic location stamp – the latitude and longitude where the photograph was taken. For a photograph with no label, LOCALE can use the shared information to assign a label based on other photographs that were taken in the same area. LOCALE th...

In this paper we address the problem of query rewriting in the context of semi-structured data. We present a method for computing the rewriting of a regular expression E in terms of other regular expressions. The method computes the exact rewriting (the one that defines the same regular language as E) if it exists, or the rewriting that defines the maximal language contained in the one defined ...

This document proposes an algebra for XML Query. The algebra has been submitted to the W3C XML Query Working Group. A novel feature of the algebra is the use of regular-expression types, similar in power to DTDs or XML Schemas, and closely related to Hasoya and Pierce’s work on Xduce. The iteration construct is based on the notion of a monad, and involves novel typing rules not encountered else...

These theories introduce a new command called statespace. It’s usage is similar to records. However, the command does not introduce a new type but an abstract specification based on the locale infrastructure. This leads to extra flexibility in composing state space components, in particular multiple inheritance and renaming of components. The state space infrastructure basically manages the fol...