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Stratosphere-troposphere coupling in the Earth System: where next?
(WileyWeather, 2015)
Cortical microtubule nucleation can organise the cytoskeleton of Drosophila oocytes to define the anteroposterior axis
(eLifeeLife, 2015-09-25)
Many cells contain non-centrosomal arrays of microtubules (MTs), but the assembly, organisation and function of these arrays are poorly understood. We present the first theoretical model for the non-centrosomal MT cytoskeleton ...
Disruption of SSP/VWI states by a stable stratification
(Cambridge University PressJournal of Fluid Mechanics, 2015-11-06)
We identify ‘minimal seeds’ for turbulence, i.e. initial conditions of the smallest possible total perturbation energy density Ec that trigger turbulence from the laminar state, in stratified plane Couette flow, the flow ...
The structure of optimal parameters for image restoration problems
(ElsevierJournal of Mathematical Analysis and Applications, 2015-09-16)
We study the qualitative properties of optimal regularisation parameters in variational models for image restoration. The parameters are solutions of bilevel optimisation problems with the image restoration problem as ...
The Hindered M1 Radiative Decay Υ(2S) → η_b(1S)γ from Lattice NRQCD
(APSPhysical Review D, 2015-11-03)
We present a calculation of the hindered M1 Υ(2S) → η_b(1S)γ decay rate using lattice nonrelativistic QCD. The calculation includes spin-dependent relativistic corrections to the NRQCD action through O(v⁶ ) in the quark’s ...
Elasticity and Glocality: Initiation of Embryonic Inversion in Volvox
(Royal Society PublishingJournal of the Royal Society Interface, 2015-10-21)
Elastic objects across a wide range of scales deform under local changes of their intrinsic properties, yet the shapes are glocal, set by a complicated balance between local properties and global geometric constraints. ...
The third way to 3D gravity
(World ScientificInternational Journal of Modern Physics D, 2015-10-09)
Consistency of Einstein’s gravitational field equation Gµν ∝ Tµν imposes a “conservation condition” on the T-tensor that is satisfied by (i) matter stress tensors, as a consequence of the matter equations of motion, and ...
Twistor form of massive 6D superparticle
(IOP ScienceJournal of Physics A, 2015-12-16)
The massive six-dimensional (6D) superparticle with manifest (n, 0) supersymmetry is shown to have a supertwistor formulation in which its “hidden” (0, n) supersymmetry is also manifest. The mass-shell constraint is replaced ...
Linear and nonlinear wave propagation in booming sand dunes
(AIPPhysics of Fluids, 2015-10-27)
The current field study examines linear and non-linear acoustic waves found in large desert sand dunes using field measurements of wave speed, frequency content, dispersion, and polarization. At the dune fields visited, ...