Browsing School of Physics and Astronomy by Title
Now showing items 1-20 of 100
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A 1-dimensional statistical mechanics model for nucleosome positioning on genomic DNA
The first level of folding of DNA in eukaryotes is provided by the so-called “10-nm chromatin fibre”, where DNA wraps around histone proteins (∼10 nm in size) to form nucleosomes, which go on to create a zig-zagging ... -
Ammonium fluoride's analogy to ice: possibilities and limitations
Ammonium fluoride, NH4F, is often seen as an analogue to ice, with several of its solid phases closely resembling known ice phases. While its ionic and hydrogen-ordered nature puts topological constraints on the ice-like ... -
Bacteria as living patchy colloids: Phenotypic heterogeneity in surface adhesion
This dataset contains data corresponding to the figures in the main text of the manuscript "Bacteria as living patchy colloids: Phenotypic heterogeneity in surface adhesion" (Science Advances, 4, 4, eaao1170, 2018). Data ... -
BioRock rare earth element leaching data
Sets of data from the ESA BioRock experiment showing biomining/bioleaching of elements (rare earth elements). Experiment on board of the International Space Station to study microbe-mineral interactions in space. Data in ... -
BslA-stabilised emulsion droplets with designed microstructure
Original microscope images of BslA-stabilised emulsion droplets and two time-lapse confocal microscope sequences (available to view using ImageJ imaging software) of BslA-stabilised partially coalesced droplets melting in ... -
Changes of Fermi Surface Topology due to the Rhombohedral Distortion in SnTe
Stoichiometric SnTe is theoretically a small gap semiconductor that undergoes a ferroelectric distortion on cooling. In reality however, crystals are always nonstoichiometric and metallic; the ferroelectric transition is ... -
Chaotic behaviour of Eulerian MHD turbulence
We study the chaos of a turbulent conducting fluid using direct numerical simulation in the Eulerian frame. We predict that the Lyapunov exponent, which measures the exponential separation of initially close solutions of ... -
Chaotic properties of a turbulent isotropic fluid
By tracking the divergence of two initially close trajectories in phase space of forced turbulence, the relation between the maximal Lyapunov exponent λ, and the Reynolds number Re is measured using direct numerical ... -
Chicxulub data
Data on the microbiology of the Chicxulub crater (Mexico) and associated geochemical data. -
Code and accessories for 'Subcritical instabilities in plane Poiseuille flow of an Oldroyd-B fluid'
Recently, detailed experiments on visco-elastic channel flow have provided convincing evidence for a nonlinear instability scenario which we had argued for based on calculations for visco-elastic Couette flow. Motivated ... -
Comparison of forcing functions in magnetohydrodynamics
Results are presented of direct numerical simulations of incompressible, homogeneous magnetohydrodynamic turbulence without a mean magnetic field, subject to different kinetic forcing functions commonly used in the literature. ... -
Competing Timescales Lead to Oscillations in Shear-Thickening Suspensions
Competing timescales generate novelty. Here, we show that a coupling between the timescales imposed by instrument inertia and the formation of interparticle frictional contacts in shear-thickening suspensions leads to ... -
Computational phase diagrams of noble gas hydrates under pressure
We present results from a first-principles study on the stability of noble gas-water compounds in the pressure range 0-100 kbar. Filled-ice structures based on the host water networks ice-Ih, ice-Ic, ice-II, and C0 interacting ... -
Conching chocolate is a prototypical transition from frictionally jammed solid to flowable suspension with maximal solid content
The mixing of a powder of 10-50μm primary particles into a liquid to form a dispersion with the highest possible solid content is a common industrial operation. Building on recent advances in the rheology of such 'granular ... -
Critical mode and band-gap-controlled bipolar thermoelectric properties of SnSe
From the related article: The reliable calculation of electronic structures and understanding of electrical properties depends on an accurate model of the crystal structure. Here, we have reinvestigated the crystal structure ... -
Data accompanying "Shaping the Growth Behaviour of Biofilms Initiated from Bacterial Aggregates, 2013-2016" (Submitted paper).
Bacterial biofilms are usually assumed to originate from individual cells deposited on a surface. However, many biofilm-forming bacteria tend to aggregate in the planktonic phase so that it is possible that many natural ... -
Data accompanying 'A growing bacterial colony in two dimensions as an active nematic'
How a single bacterium becomes a colony of many thousand cells is important in biomedicine and food safety. Much is known about the molecular and genetic bases of this process, but less about the underlying physical ... -
Data accompanying the manuscript "Mechanical interactions in bacterial colonies and the surfing probability of beneficial mutations"
Bacterial conglomerates such as biofilms and microcolonies are ubiquitous in nature and play an important role in industry and medicine. In contrast to well-mixed cultures routinely used in microbial research, bacteria in ... -
Data and movies accompanying 'Kinetic theory of pattern formation in mixtures of microtubules and molecular motors'
In this study we formulate a theoretical approach, based on a Boltzmann-like kinetic equation, to describe pattern formation in two-dimensional mixtures of microtubular filaments and molecular motors. Following the previous ... -
Data associated with publication "Detectability of biosignatures in a low-biomass simulation of martian sediments"
Data associated with Stevens et al. "Detectability of biosignatures in a low-biomass simulation of martian sediments" (In submission).
