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Several applications of a model for dense granular flows
(University of CambridgeDepartment of Applied Mathematics and Theoretical Physics, 2011-03-15)
This dissertation describes efforts to evaluate a recently proposed continuum model for
the dense flow of dry granular materials (Jop, Forterre & Pouliquen, 2006, Nature, 441,
167-192). The model, based upon a generalisation ...
Instabilities and transport in magnetized plasmas
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsDarwin College, 2011-02-08)
In a magnetized plasma, naturally occurring pressure anisotropies facilitate in- stabilities that are expected to modify the transport properties of the system. In this thesis we examine two such instabilities and, where ...
The solar tachocline: a self-consistent model of magnetic confinement
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsQueens' College, 2011-01-11)
In this dissertation we consider the dynamics of the solar interior, with particular focus on angular momentum balance and magnetic field confinement within the tachocline.
In Part I we review current knowledge of the ...
Scattering of internal gravity waves
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsSelwyn College, 2011-04-19)
Internal gravity waves play a fundamental role in the dynamics of stably stratified regions
of the atmosphere and ocean. In addition to the radiation of momentum and energy remote from
generation sites, internal waves ...
Response to mTOR inhibition: activity of eIF4E predicts sensitivity in cell lines and acquired changes in eIF4E regulation in breast cancer
(2011-02-14)
Abstract Background Inhibitors of the kinase mTOR, such as rapamycin and everolimus, have been used as cancer therapeutics with limited success since some tumours are resistant. Efforts to establish predictive markers to ...
New approaches to higher-dimensional general relativity
(University of CambridgeDepartment of Applied Mathematics and Theoretical Physics, 2011-06-07)
This thesis considers various aspects of general relativity in more than four spacetime dimensions.
Firstly, I review the generalization to higher dimensions of the algebraic classification of the Weyl tensor and the ...
Geometric aspects of gauge and spacetime symmetries
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsTrinity College, 2011-06-07)
We investigate several problems in relativity and particle physics where symmetries play a central role; in all cases geometric properties of Lie groups and their quotients are related to physical effects. The first part ...
Exploring nonlinear regression methods, with application to association studies
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsSt. Catharine's College, 2011-07-12)
The field of nonlinear regression is a long way from reaching a consensus. Once a method decides to explore nonlinear combinations of predictors, a number of questions are raised, such as what nonlinear combinations to ...
Tidal interactions between planets and stars
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsSelwyn College, 2011-06-07)
Since the first discovery of an extrasolar planet around a solar-type star, observers
have detected over 500 planets outside the solar system. Many of these planets have
Jovian masses and orbit their host stars in orbits ...
The application of automated perturbation theory to lattice QCD
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsTrinity College, 2011-11-08)
Predictions of heavy quark parameters are an integral component of precision
tests of the Standard Model of particle physics. Experimental measurements
of electroweak processes involving heavy hadrons provide stringent ...