Influence of sex on expansion rate of abdominal aortic aneurysms
Abstract Background The UK Small Aneurysm Trial suggested that female sex is an independent risk factor for rupture of abdominal aortic aneurysm (AAA). This study assessed the e...
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106 publications
Phylogenetic information and experimental design in molecular systematics
Despite the widespread perception that evolutionary inference from molecular sequences is a statistical problem, there has been very little attention paid to questions of experi...
Stellar populations and surface brightness fluctuations: new observations and models
We examine the use of surface brightness fluctuations (SBF) for both stellar population and distance studies. New V-band SBF data are reported for five Fornax cluster galaxies a...
The stability of viscous flow between horizontal concentric cylinders
The critical conditions for the formation of Taylor vortices between horizontal concentric cylinders are considered in detail. (1) Where the flow is unidirectional round the ann...
Star formation, metallicity and dust properties derived from the StromloAPM galaxy survey spectra
We have derived star formation rates (SFRs), gas-phase oxygen abundances and effective dust absorption optical depths for a sample of galaxies drawn from the Stromlo—APM redshif...
Measurement of the oscillator strengths of very weak 1 eV Fe I lines
Relative oscillator strengths are measured for nine very weak 1-eV Fe I lines, using the Oxford spectroscopic furnace. These oscillator strengths are placed on an absolute scale...
Density Ratios, Empirical Likelihood and Cot Death
SUMMARY A method is developed for the estimation of the logarithm of the ratio of two probability density functions. The method has applications in several contexts, notably in ...
Waves a heavy, viscous, incompressible, electrically conducting fluid of variable density, in the presence of a magnetic field
The equilibrium of a horizontal layer of a heavy incompressible fluid of variable density p 0 in the vertical direction is stable or unstable according as d p o /dz (z being the...
Non-LTE model atmospheres for central stars of planetary nebulae
A grid of hot non-LTE model atmospheres with H and He opacity sources has been calculated. The emergent fluxes, together with integrals required for Zanstra and Energy-Balance m...
Spring arrival patterns of the Cuckoo<i>Cuculus canorus</i>, Nightingale<i>Luscinia megarhynchos</i>and Spotted Flycatcher<i>Musciapa striata</i>in Britain
Data on the arrival dates of Cuckoo, Nightingale and Spotted Flycatcher published in the Royal Meteorological Society phenological reports are presented. From these records, con...
Experiments on the stability of viscous flow between rotating cylinders II. Visual observations
Measurements of the hydrodynamic stability of viscous flow between rotating cylinders have been made with an apparatus similar to that used by Taylor in his original experiments...