The use of an Algol computer program is described for sorting the anaesthesia records of prostatectomy patients in different hospitals. As an index of patient performance the length of stay in hospital was compared with pre-operative assessment, age, blood loss, duration of anaesthesia and category of surgeon. All the clinical assessments were made by one anaesthetist. An analysis of morbidity ...

We introduce a game model for an Algol-like programming language with primitives for parallel composition and synchronization on semaphores. The semantics is based on a simplified version of Hyland-Ong-style games and it emphasizes the intuitive connection between the concurrent nature of games and that of computation. The model is fully abstract for may-equivalence.

During the sixties two level van Wijngaarden grammars (2vwg) were introduced for the formal definition of Algol 68. Two level van Wijngaarden grammars provide a formalism suited for writing rigorous formal definitions which read like human prose. Both the context free and context sensitive syntax of Algol 68 are defined in 2vwg. However, the specification is not executable. The Extended Affix G...

Stephen D. Brookes Computer Science Department Carnegie-Mellon University Pi t tsburgh Pennsylvania 15213