Outputs (203)

Dynamical systems applied to cosmology: dark energy and modified gravity (2018)
Journal Article
Bahamonde, S., Böhmer, C. G., Carloni, S., Copeland, E. J., Fang, W., & Tamanini, N. (2018). Dynamical systems applied to cosmology: dark energy and modified gravity. Physics Reports, 775-777, 1-122. https://doi.org/10.1016/j.physrep.2018.09.001

The Nobel Prize winning confirmation in 1998 of the accelerated expansion of our Universe put into sharp focus the need of a consistent theoretical model to explain the origin of this acceleration. As a result over the past two decades there has been... Read More about Dynamical systems applied to cosmology: dark energy and modified gravity.

Ultra-high-field arterial spin labelling MRI for non-contrast assessment of cortical lesion perfusion in multiple sclerosis (2018)
Journal Article
Dury, R. J., Falah, Y., Gowland, P. A., Evangelou, N., Bright, M. G., & Francis, S. T. (2019). Ultra-high-field arterial spin labelling MRI for non-contrast assessment of cortical lesion perfusion in multiple sclerosis. European Radiology, 29(4), 2027-2033. https://doi.org/10.1007/s00330-018-5707-5

© 2018, The Author(s). Objectives: To assess the feasibility of using an optimised ultra-high-field high-spatial-resolution low-distortion arterial spin labelling (ASL) MRI acquisition to measure focal haemodynamic pathology in cortical lesions (CLs)... Read More about Ultra-high-field arterial spin labelling MRI for non-contrast assessment of cortical lesion perfusion in multiple sclerosis.

Ultra-high-field arterial spin labeling MRI for non-contrast assessment of cortical lesion perfusion in multiple sclerosis (2018)
Journal Article
Drury, R. J., Falah, Y., Gowland, P. A., Evangelou, N., Bright, M. G., & Francis, S. T. (2019). Ultra-high-field arterial spin labeling MRI for non-contrast assessment of cortical lesion perfusion in multiple sclerosis. European Radiology, 29(4), 2027–2033. https://doi.org/10.1007/s00330-018-5707-5

Objectives

Assess the feasibility of using an optimised ultra-high-field high-spatial-resolution low-distortion ASL MRI acquisition to measure focal haemodynamic pathology in cortical lesions (CLs) in Multiple Sclerosis (MS).

Methods

Twelve... Read More about Ultra-high-field arterial spin labeling MRI for non-contrast assessment of cortical lesion perfusion in multiple sclerosis.

A high electron mobility phonotransistor (2018)
Journal Article
Poyser, C. L., Li, L. H., Campion, R. P., Akimov, A. V., Linfield, E. H., Davies, A. G., Cunningham, J. E., & Kent, A. J. (2018). A high electron mobility phonotransistor. Communications Physics, 1, 1-7. https://doi.org/10.1038/s42005-018-0059-7

Acoustoelectric devices convert acoustic energy to electrical energy and vice versa. Devices working at much higher acoustic frequencies than those currently available have potential scientific and technological applications, e.g.: as detectors in ph... Read More about A high electron mobility phonotransistor.

Boltzmann equations for preheating (2018)
Journal Article
Emond, W. T., Millington, P., & Saffin, P. M. (2018). Boltzmann equations for preheating. Journal of Cosmology and Astroparticle Physics, 2018(09), Article 041. https://doi.org/10.1088/1475-7516/2018/09/041

We derive quantum Boltzmann equations for preheating by means of the density matrix formalism, which account for both the non-adiabatic particle production and the leading collisional processes between the produced particles. In so doing, we illustra... Read More about Boltzmann equations for preheating.

MRI assessment of altered dynamic changes in liver haemodynamics following a meal challenge in compensated cirrhosis (2018)
Journal Article
Cox, E. F., Palaniyappan, N., Aithal, G. P., Guha, I. N., & Francis, S. T. (2018). MRI assessment of altered dynamic changes in liver haemodynamics following a meal challenge in compensated cirrhosis. European Radiology Experimental, 2, Article 26. https://doi.org/10.1186/s41747-018-0056-3

Background: To use magnetic resonance imaging (MRI) to dynamically assess postprandial changes in hepatic and collateral blood flow, liver perfusion and oxygenation in healthy participants and patients with liver disease with compensated cirrhosis (C... Read More about MRI assessment of altered dynamic changes in liver haemodynamics following a meal challenge in compensated cirrhosis.

Worldline sphaleron for thermal Schwinger pair production (2018)
Journal Article
Gould, O., Rajantie, A., & Xie, C. (2018). Worldline sphaleron for thermal Schwinger pair production. Physical Review D, 98(5), 056022. https://doi.org/10.1103/physrevd.98.056022

With increasing temperatures, Schwinger pair production changes from a quantum tunneling to a classical, thermal process, determined by a worldline sphaleron. We show this and calculate the corresponding rate of pair production for both spinor and sc... Read More about Worldline sphaleron for thermal Schwinger pair production.

Unified Thermodynamic Uncertainty Relations in Linear Response (2018)
Journal Article
Macieszczak, K., Brandner, K., & Garrahan, J. P. (2018). Unified Thermodynamic Uncertainty Relations in Linear Response. Physical Review Letters, 121(13), Article 130601. https://doi.org/10.1103/physrevlett.121.130601

Thermodynamic uncertainty relations (TURs) are recently established relations between the relative uncertainty of time-integrated currents and entropy production in non-equilibrium systems. For small perturbations away from equilibrium, linear respon... Read More about Unified Thermodynamic Uncertainty Relations in Linear Response.

Optical measurement of contact forces using frustrated total internal reflection (2018)
Journal Article
Sharp, J. S., Poole, S. F., & Kleiman, B. W. (2018). Optical measurement of contact forces using frustrated total internal reflection. Physical Review Applied, 10(3), Article 034051. https://doi.org/10.1103/physrevapplied.10.034051

A simple device based on the principle of frustrated total internal reflection is used to image the regions of contact between rubber objects and a large-area perspex waveguide. Measurements of the intensity of light scattered at the interface are fo... Read More about Optical measurement of contact forces using frustrated total internal reflection.

SDSS-IV MaNGA: the formation sequence of S0 galaxies (2018)
Journal Article
Fraser-McKelvie, A., Aragon-Salamanca, A., Merrifield, M., Tabor, M., Bernardi, M., Drory, N., …Argudo-Fernandez, M. (2018). SDSS-IV MaNGA: the formation sequence of S0 galaxies. Monthly Notices of the Royal Astronomical Society, 481(4), 5580-5591. https://doi.org/10.1093/mnras/sty2563

Gas stripping of spiral galaxies or mergers are thought to be the formation mechanisms of lenticular galaxies. In order to determine the conditions in which each scenario dominates, we derive stellar populations of both the bulge and disk regions of... Read More about SDSS-IV MaNGA: the formation sequence of S0 galaxies.