Ursula Katherine Duncan

, Katherine

A central problem in understanding bacterial speciation is how clusters of closely related strains emerge and persist in the face of recombination. We use a neutral Fisher–Wright model in which genotypes, defined by the alleles at 140 house-keeping loci, change in each generation by mutation or recombination, and examine conditions in which an initially uniform population gives rise to resolved...

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...

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, ...

Alexander Duncan Langmuir

Decide first. Then turn the page.