Higher Grade Chemistry (Duncan, Iain M.)

Duncan Wood

Mr. Duncan Wood, formerly Consultant Surgeon to e Royal Hospital, Bristol, Cossham Memorial HosBristol, and to Bridgwater Hospital, Somerset, 'ed on July 24th, 1969, at the age of 82. He was born on September 2nd, 1886, at iCorsham, J'tshire, where his father was in General Practice. ? was educated at the Imperial Service College, ^ich was at Windsor in those days. From there he ?nt to the Lond...

Higher-Order Chemistry

Gamma is a formalism in which programs are expressed in terms of multiset rewriting often referred as the Chemical Reaction Model. In this paper we are concerned with higher-order Gamma programming. First we review three proposals which introduce the notion of membrane and higher order facilities. Finally, we propose a higher-order Gamma which allows the definition of γ-abstractions (in the sam...

Duncan Macrae

Barry Duncan

1. What exactly is an evidenced-based practice? It usually means an approach that has established itself better than placebo or treatment as usual in two clinical trials. Such demonstrations are nothing to write home about; intervention of nearly any kind has demonstrated its superiority over placebo for 50 years! This research tells us nothing that we already do not know: Treatment works. So, ...

Organic nitrogen chemistry during low-grade metamorphism

Most of the organic nitrogen (Norg) on Earth is disseminated in crustal sediments and rocks in the form of fossil nitrogen-containing organic matter. The chemical speciation of fossil Norg within the overall molecular structure of organic matter changes with time and heating during burial. Progressive thermal evolution of organic matter involves phases of enhanced elimination of Norg and ultima...