A previously proposed [Sutcliffe and Tennyson, Int. J. Quantum Chem. 29, 183 (199111 bodyfixed Hamiltonian is applied to A& systems in Radau coordinates with the x-axis embedded along the bisector of the angle. It is shown that by using a discrete variable representation for the angular coordinate it is possible to avoid singular regions of the Hamiltonian. A two-step variational procedure is u...

A new failure criterion was presented to predict the ultimate strength of shale under the triaxial and polyaxial state of stress. A database containing 93 datasets was obtained from the results of the uniaxial, triaxial, polyaxial compressive tests, an indirect tensile test was collected from reliable references, and this test was carried out on the shale samples taken from the southwestern oil...

The paper introduces a framework for users’ design quality judgements based on Adaptive Decision Making theory. The framework describes judgement on quality attributes (usability, content/functionality, aesthetics, customisation and engagement) with dependencies on decision making arising from the user’s background, task and context. Incorporating the results from previous evaluations of websit...

Methods A retrospective qualitative content analysis of a Norovirus outbreak was undertaken, using critical incident analysis as the basis for conducting semi-structured interviews with 24 key clinical and managerial participants. Behavioural references were mapped to a behavioural framework (Weick and Sutcliffe, 2007) that describes positive behaviours, known as ‘mindful behaviours’ and negati...

Monopoles are solutions of a first order partial differential equation — the Bogomolny equation. They can be thought of as approximated by static, magnetic particles in R. In these notes we will consider what monopoles are and some of the various approaches to understanding them. In particular we will discuss the spectral curve, twistor theory, Nahm transform and rational map of a monopole. A g...