Controlled trials have shown that the rate of healing of gastric ulcers is increased by treatment with carbenoxolone sodium, but that fluid retention is produced as a side effect sufficiently often to limit the freedom with which the drug can be prescribed (Doll, Hill, Hutton, and Underwood, 1962; Doll, Hill, and Hutton, 1965; Horwich and Galloway, 1965). We have, therefore, sought a method of ...

We revisit the work of Paterson and of Meijer & Hutton, which describes how to construct catamorphisms for recur-sive datatype deenitions that embed contravariant occurrences of the type being deened. Their construction requires , for each catamorphism, the deenition of an anamor-phism that has an inverse-like relationship to that cata-morphism. We present an alternative construction, which rep...

In cite{Kats84}, Katsaras introduced a method for constructing a Hu-tton $[0,1]$-quasi-uniformity from a crisp uniformity. In this paper we present other different methods for making this based mainly in the concept of a fuzzy uniform structure. Furthermore, we prove that some of these methods preserve the completeness property of the quasi-uniformity.  Moreover, we also show that Katsaras' con...

The Banks Peninsula tree weta, Hemideina ricta Hutton, is the rarest of the seven species of tree weta. Prior to our study it was known from only two locations on Banks Peninsula: Okains Bay (R. Bigelow, formerly Canterbury University, pers. comm.) and in totara (Podocarpus totara (G. Benn ex D. Don.)) logs near Purple Peak (P. Johns, Canterbury University, pers. comm.). The only other publishe...