Robert G. Owens

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Advances in DNA technology have facilitated presymptomatic testing for an inherited predisposition to a number of autosomal dominant cancer syndromes. While testing is generally undertaken with informed consent and within a counselling protocol, there is still much to be learned about the psychological impact of DNA testing in a predictive setting. In this(More)
The psychological well-being of forty-four breast cancer patients was assessed shortly before and after surgery, and at three and twelve months post-operatively. Regression analysis revealed type of treatment, control over treatment and concern for appearance as significant predictors of nature of subsequent mood state. Results are discussed with reference(More)
A novel fully implicit ÿnite volume method applied to the lid-driven cavity problem—Part I: High Reynolds number ow calculations SUMMARY A novel implicit cell-vertex ÿnite volume method is described for the solution of the Navier–Stokes equations at high Reynolds numbers. The key idea is the elimination of the pressure term from the momentum equation by(More)
In an earlier paper, Moyers-Gonzalez et al. [J. Fluid. Mech. 617 (2008), 327-354] used kinetic theory to derive a non-homogeneous haemorheological model and applied this to simulate the properties of steady flow of blood in a tube. By adjusting the tube haematocrit to match that of the experimental fitted curve of Pries et al. [Circ. Res. 67 (1990),(More)
Evidence is presented to show that self-sustained oscillations of purely hemodynamical origin are possible in some arcade-type microvascular networks supplied with steady boundary conditions, but that in others the oscillations disappear with sufficient reduction of the time step Δt, showing them to be numerical artefacts. In an attempt to elucidate the(More)
In this article we develop a new smoothed particle hydrodynamics (SPH) method suitable for solving the incompressible Navier-Stokes equations, even with singular forces. Singular source terms are handled in a manner similar to that in the immersed boundary (IB) method of Peskin (2002). The numerical scheme implements a second-order pressure-free projection(More)