Browsing Department of Materials Science and Metallurgy by Title
Now showing items 222-241 of 648
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High-throughput analysis of candidate imprinted genes and allele-specific gene expression in the human term placenta
(2010-04-19)Abstract Background Imprinted genes show expression from one parental allele only and are important for development and behaviour. This extreme mode of allelic imbalance has been described for approximately 56 human genes. ...
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Higher order corrections and unification in the minimal supersymmetric standard model: SOFTSUSY3.5
(ElsevierComputer Physics Communications, 2014-12-18)We explore the effects of three-loop minimal supersymmetric standard model renormalisation group equation terms and some leading two-loop threshold corrections on gauge and Yukawa unification: each being one loop higher ...
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Higher spins from Nambu-Chern-Simons theory
(SpringerCommunications in Mathematical Physics, 2016)We propose a new theory of higher spin gravity in three spacetime dimensions. This is defined by what we will call a Nambu-Chern-Simons (NCS) action; this is to a Nambu 3-algebra as an ordinary Chern-Simons (CS) action is ...
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Higher symmetries of the Schrödinger operator in Newton–Cartan geometry
(ElsevierJournal of Geometry and Physics, 2016-06-17)We establish several relationships between the non-relativistic conformal symmetries of Newton–Cartan geometry and the Schrödinger equation. In particular we discuss the algebra sch(d) of vector fields conformally-preserving ...
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Holographic Josephson junctions.
(Physical review letters, 2011-06-03)
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Holographic thermalization, quasinormal modes and superradiance in Kerr-AdS
(Journal of High Energy Physics, 2014-01-01)
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Homeostatic Activity-Dependent Tuning of Recurrent Networks for Robust Propagation of Activity
(Society for NeuroscienceJournal of Neuroscience, 2016-03-30)Developing neuronal networks display spontaneous bursts of action potentials that are necessary for circuit organization and tuning. While spontaneous activity has been shown to instruct map formation in sensory circuits, ...
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Horizontal locomotion of a vertically flapping oblate spheroid
(Cambridge University PressJournal of Fluid Mechanics, 2018-04-10)We consider the self-induced motions of three-dimensional oblate spheroids of density $\rho_s$ with varying aspect ratios $AR=b/c \leq 1$, where $b$ and $c$ are the spheroids' centre-pole radius and centre-equator radius ...
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Hovering black holes from charged defects
(Classical and Quantum Gravity, 2015-05-21)
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How far from equilibrium is active matter?
(American Physical SocietyPhysical Review Letters, 2016)Active matter systems are driven out of thermal equilibrium by a lack of generalized Stokes-Einstein relation between injection and dissipation of energy at the microscopic scale. We consider such a system of interacting ...
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Hydrodynamic interactions between nearby slender filaments
(IOP PublishingEPL (Europhysics Letters), 2016-11-28)Cellular biology abound with filaments interacting through fluids, from intracellular microtubules, to rotating flagella and beating cilia. While previous work has demonstrated the complexity of capturing nonlocal hydrodynamic ...
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Hydrodynamic mobility of a sphere moving on the centerline of an elastic tube
(PHYSICS OF FLUIDS, 2017-11)
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Hydrogel as a Medium for Fluid-Driven Fracture Study
In this paper we describe how to construct polyacrylamide hydrogels to study the processes linked with hydraulic fracturing. These transparent, linearly elastic and brittle gels permit fracturing at low pressures and speeds ...
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Hyperbolic Inflation in the Light of Planck 2015 data
(APSPhysical Review D, 2015-05-18)Rubano and Barrow have discussed the emergence of a dark energy, with late-time cosmic acceleration arising from a self-interacting homogeneous scalar field with a potential of hyperbolic power type. Here, we study the ...
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Impact of aperture separation on wind-driven single-sided natural ventilation
(ElsevierBuilding and Environment, 2016-11-01)This paper presents a study of the impact of horizontal aperture separation in single-sided ventilation flows with two apertures (SS2). The study is based on wind tunnel measurements and dimensional analysis. The results ...
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Impact of dynamical charm quarks
(Proceedings of ScienceProceedings of Sciencehttps://pos.sissa.it/256/126/, 2017-01-17)We compute and compare the continuum limits of several quantities in QCD with and without a dynamical charm quark. We consider both low energy quantities, like the hadronic scales r0 and t 0 , and high energy quantities, ...
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In situ accretion of gaseous envelopes on to planetary cores embedded in evolving protoplanetary discs
(Oxford University PressMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017-09-21)The core accretion hypothesis posits that planets with significant gaseous envelopes accreted them from their protoplanetary discs after the formation of rocky/icy cores. Observations indicate that such exoplanets exist ...
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Inclined gravity currents filling basins: The influence of Reynolds number on entrainment into gravity currents
(AIPPhysics of Fluids, 2015-09-17)Gravity currents of dense fluid feed basins in many important natural and industrial systems, such as lakes fed by dense rivers and auditoria supplied with cooled air by ventilation systems. The entrainment into these ...
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Indices for Supersymmetric Quantum Field Theories in Four Dimensions
(University of CambridgeDepartment of Applied Mathematics and Theoretical PhysicsTrinity Hall, 2012-07-21)In this thesis, we investigate four dimensional supersymmetric indices. The motivation for studying such objects lies in the physics of Seiberg's electric-magnetic duality in supersymmetric field theories. In the first ...