Now showing items 1-20 of 843

  • Theoretical considerations in the use of scalar-tensor theories of gravity in inflationary models 

    Edwards, David Craig (The University of Edinburgh, 2018-07-02)
    The inflationary paradigm is one which was designed to answer questions that arose from classical Hot Big Bang cosmology. The period of rapid expansion in the early Universe provides a mechanism to solve the flatness, ...
  • Role of active galactic nuclei in galaxy evolution 

    Nisbet, David Maltman (The University of Edinburgh, 2018-07-02)
    It is now believed that most, if not all, galaxies contain a supermassive black hole (SMBH) and that these play a crucial role in their host galaxies' evolution. Whilst accreting material, a SMBH (known as an active ...
  • First-principles studies of gas hydrates and clathrates under pressure 

    Teeratchanan, Pattanasak (The University of Edinburgh, 2018-11-29)
    Gas hydrates are molecular host-guest mixtures where guest gas species are encapsulated in host water networks. They play an important role in gas storage in aqueous environments at relatively low pressures, and their ...
  • Studies of dynamically and statically compressed antimony 

    Coleman, Amy Louise (The University of Edinburgh, 2018-07-02)
    Physics at extreme conditions is not a young field; there have been decades of developments that have allowed us to generate high-pressure and high-temperature conditions in a vast array of materials. Conventionally, ...
  • Simple molecular systems at extreme conditions 

    Turnbull, Robin William (The University of Edinburgh, 2018-07-02)
    This thesis project has focussed on the experimental study of simple molecular systems at extreme conditions. High-pressure and high-temperature techniques have been used in combination with Raman spectroscopy and X-ray ...
  • Ray-traced radiative transfer on massively threaded architectures 

    Thomson, Samuel Paul (The University of Edinburgh, 2018-07-02)
    In this thesis, I apply techniques from the field of computer graphics to ray tracing in astrophysical simulations, and introduce the grace software library. This is combined with an extant radiative transfer solver to ...
  • Mixtures of methane and water under extreme conditions 

    Pruteanu, Ciprian Gabriel (The University of Edinburgh, 2018-07-02)
    The hydrophobic effect has been a topic of research for decades, not only due to its importance as the primary building block of much of chemistry (it dictates which solvent can dissolve which solutes) and biology (guiding ...
  • Microswimming in complex fluids 

    Ives, Thomas Robert (The University of Edinburgh, 2018-07-02)
    Many microorganisms have the ability to propel themselves through their fluid environments by periodically actuating their body. The biological fluid environments surrounding these microswimmers are typically complex ...
  • Microbial responses to extreme radiation environments 

    Wadsworth, Jennifer Louise (The University of Edinburgh, 2018-07-02)
    Microorganisms are known to tolerate a variety of extreme environments, such as high and low pH, desiccation and a wide range of temperatures that would prove uninhabitable for most eukaryotic cells. However, extreme ...
  • Large scale simulations of genome organisation in living cells 

    Johnson, James (The University of Edinburgh, 2018-07-02)
    Within every human cell, approximately two meters of DNA must be compacted into a nucleus with a diameter of around ten micrometers. Alongside this daunting storage problem, the 3D organisation of the genome also helps ...
  • Mechanical properties of particle-stabilised liquid-liquid interfaces 

    Rumble, Katherine Ann (The University of Edinburgh, 2018-07-02)
    Over the past couple of decades interest in particle-stabilised emulsions or Pickering emulsions has greatly increased. When using particles as stabilisers, as opposed to surfactants, the interface becomes more rigid and ...
  • Applying high performance computing to profitability and solvency calculations for life assurance contracts 

    Tucker, Mark (The University of Edinburgh, 2018-07-02)
    Throughout Europe, the introduction of Solvency II is forcing companies in the life assurance and pensions provision markets to change how they estimate their liabilities. Historically, each solvency assessment required ...
  • Dynamics of numerical stochastic perturbation theory 

    Garofalo, Marco (The University of Edinburgh, 2018-07-02)
    Numerical Stochastic Perturbation theory is a powerful tool for estimating high-order perturbative expansions in lattice quantum field theory. The standard algorithm based on the Langevin equation, however, suffers from ...
  • Axion dark matter and two-neutrino double electron capture searches in the Large Underground Xenon experiment 

    Marzioni, Maria Francesca (The University of Edinburgh, 2018-07-02)
    The hunt for Dark Matter plays a truly critical role in contemporary physics. At both the largest and smallest scales, deep questions are being raised about the fundamental nature of the universe - questions that ...
  • Microbial weathering of shale rock in natural and historic industrial environments 

    Samuels, Toby Stephen (The University of Edinburgh, 2018-07-02)
    The weathering of shales is a globally important process affecting both natural and built environments. Shales form roughly 70 % of worldwide sedimentary rock deposits and therefore the weathering of these rocks has ...
  • Underground measurement of hydrogen-burning reactions on 17;18O at energies of astrophysical interest 

    Bruno, Carlo Giulio (The University of Edinburgh, 2017-11-30)
    The 17;18O(p,α)14;15N nuclear reactions play an important role in several astrophysical scenarios, and in Asymptotic Giant Branch (AGB) stars in particular. These stars are the site of several mixing and recirculating ...
  • Using numerical simulations to identify observational signatures of self-gravitating protostellar discs 

    Hall, Cassandra (The University of Edinburgh, 2017-11-30)
    In this thesis, I study numerical and semi-analytical models of self-gravitating protostellar discs, with the aim of furthering our understanding of the role of disc-self gravity in planet formation. At the time of ...
  • Physics of the flow of concentrated suspensions 

    Guy, Ben Michael (The University of Edinburgh, 2017-07-10)
    A particulate suspension under shear is a classic example of a system driven out of equilibrium. While it is possible to predict the equilibrium phase behaviour of a quiescent suspension, linking microscopic details to ...
  • Role of phenotype switching during biological evolution in static environments 

    Tadrowski, Andrew Charteris (The University of Edinburgh, 2017-07-10)
    Biological evolution is an inherently non-equilibrium process, by which a population acquires a new genetic composition, optimally suited to its present environment. Far from being the slow process it is traditionally ...
  • Evolution of galaxies and black holes, and the origin of cosmic reionization 

    Parsa, Shaghayegh (The University of Edinburgh, 2018-07-02)
    In recent years, advances in deep optical, and especially deep near-infrared imaging with the Hubble Space Telescope (HST) and wide-field ground-based telescopes such as VISTA, have revolutionized our understanding of ...