Skip to main content

Research Repository

Advanced Search

All Outputs (2097)

Color gradients reflect an inside-out growth in early-type galaxies of the cluster MACS (2018)
Journal Article
Marian, V., Ziegler, B., Kuchner, U., & Verdugo, M. (2018). Color gradients reflect an inside-out growth in early-type galaxies of the cluster MACS. Astronomy and Astrophysics, 617, Article A34. https://doi.org/10.1051/0004-6361/201832750

Aims. Color gradients of galaxies are a powerful tool to resolve the variations of stellar populations within galaxies. We use this approach to explore the evolution of early-type galaxies in the core of the massive galaxy cluster MACS J1206.2-0847 a... Read More about Color gradients reflect an inside-out growth in early-type galaxies of the cluster MACS.

Collisions of cosmic strings with chiral currents (2018)
Journal Article
Rybak, I., Avgoustidis, A., & Martins, C. (2018). Collisions of cosmic strings with chiral currents. Physical Review D, 98(6), Article 15. https://doi.org/10.1103/physrevd.98.063519

We present an analytic study of cosmic superconducting chiral string collisions in Minkowski space, applying the kinematic constraints that arise from the relevant generalization of the Nambu-Goto action. In particular, we revisit the solution for ch... Read More about Collisions of cosmic strings with chiral currents.

Gastric motor and sensory function in health assessed by magnetic resonance imaging: Establishment of reference intervals for the Nottingham test meal in healthy subjects (2018)
Journal Article
Parker, H., Hoad, C. L., Tucker, E., Costigan, C., Marciani, L., Gowland, P., & Fox, M. (2018). Gastric motor and sensory function in health assessed by magnetic resonance imaging: Establishment of reference intervals for the Nottingham test meal in healthy subjects. Neurogastroenterology and Motility, 30(12), Article e13463. https://doi.org/10.1111/nmo.13463

Background: Current investigations of gastric emptying rarely identify the cause of symptoms or provide a definitive diagnosis in patients with dyspepsia. This study assessed gastric function by magnetic resonance imaging (MRI) using the modular "Not... Read More about Gastric motor and sensory function in health assessed by magnetic resonance imaging: Establishment of reference intervals for the Nottingham test meal in healthy subjects.

Predicting residential building age from map data (2018)
Journal Article
Rosser, J., Boyd, D., Long, G., Zakhary, S., Mao, Y., & Robinson, D. (2019). Predicting residential building age from map data. Computers, Environment and Urban Systems, 73, 56-67. https://doi.org/10.1016/j.compenvurbsys.2018.08.004

The age of a building influences its form and fabric composition and this in turn is critical to inferring its energy performance. However, often this data is unknown. In this paper, we present a methodology to automatically identify the construction... Read More about Predicting residential building age from map data.

Stellar kinematics from the symmetron fifth force in the Milky Way disk (2018)
Journal Article
O’Hare, C. A., & Burrage, C. (2018). Stellar kinematics from the symmetron fifth force in the Milky Way disk. Physical Review D, 98(6), Article 064019. https://doi.org/10.1103/PhysRevD.98.064019

It has been shown that the presence of nonminimally coupled scalar fields giving rise to a fifth force can noticeably alter dynamics on galactic scales. Such a fifth force must be screened in the Solar System but if unscreened it can have similar obs... Read More about Stellar kinematics from the symmetron fifth force in the Milky Way disk.

Holographic optical trapping Raman micro-spectroscopy for non-invasive measurement and manipulation of live cells (2018)
Journal Article
Sinjab, F., Awuah, D., Gibson, G., Padgett, M., Ghaemmaghami, A. M., & Notingher, I. (2018). Holographic optical trapping Raman micro-spectroscopy for non-invasive measurement and manipulation of live cells. Optics Express, 26(19), 25211-25225. https://doi.org/10.1364/oe.26.025211

We present a new approach for combining holographic optical tweezers with confocal Raman spectroscopy. Multiple laser foci, generated using a liquid-crystal spatial light modulator, are individually used for both optical trapping and excitation of sp... Read More about Holographic optical trapping Raman micro-spectroscopy for non-invasive measurement and manipulation of live cells.

Galaxy structure in the ultraviolet: the dependence of morphological parameters on rest-frame wavelength (2018)
Journal Article
Mager, V. A., Conselice, C. J., Seibert, M., Gusbar, C., Katona, A. P., Villari, J. M., …Windhorst, R. A. (2018). Galaxy structure in the ultraviolet: the dependence of morphological parameters on rest-frame wavelength. Astrophysical Journal, 864(2), Article 123. https://doi.org/10.3847/1538-4357/aad59e

Evolutionary studies that compare galaxy structure as a function of redshift are complicated by the fact that any particular galaxy's appearance depends in part on the rest-frame wavelength of the observation. This leads to the necessity for a "morph... Read More about Galaxy structure in the ultraviolet: the dependence of morphological parameters on rest-frame wavelength.

A terahertz-driven non-equilibrium phase transition in a room temperature atomic vapour (2018)
Journal Article
Wade, C., Marcuzzi, M., Levi, E., Kondo, J., Lesanovsky, I., Adams, C., & Weatherill, K. (2018). A terahertz-driven non-equilibrium phase transition in a room temperature atomic vapour. Nature Communications, 9, 1-7. https://doi.org/10.1038/s41467-018-05597-4

There are few demonstrated examples of phase transitions that may be driven directly by terahertz frequency electric fields, and those that are known require field strengths exceeding 1 MV cm?1. Here we report a non-equilibrium phase transition drive... Read More about A terahertz-driven non-equilibrium phase transition in a room temperature atomic vapour.

Three pillars of sustainability: in search of conceptual origins (2018)
Journal Article
Purvis, B., Mao, Y., & Robinson, D. (2019). Three pillars of sustainability: in search of conceptual origins. Sustainability Science, 14(3), 681-695. https://doi.org/10.1007/s11625-018-0627-5

The three pillar conception of (social, economic and environmental) sustainability, commonly represented by three intersecting circles with overall sustainability at the centre, has become ubiquitous. With a view to identifying the genesis and theore... Read More about Three pillars of sustainability: in search of conceptual origins.

The VANDELS ESO public spectroscopic survey: Observations and first data release (2018)
Journal Article
Pentericci, L., McLure, R. J., Garilli, B., Cucciati, O., Franzetti, P., Iovino, A., …Zucca, E. (2018). The VANDELS ESO public spectroscopic survey: Observations and first data release. Astronomy and Astrophysics, 616, 1-15. https://doi.org/10.1051/0004-6361/201833047

© ESO 2018. This paper describes the observations and the first data release (DR1) of the ESO public spectroscopic survey "VANDELS, a deep VIMOS survey of the CANDELS CDFS and UDS fields". The main targets of VANDELS are star-forming galaxies at reds... Read More about The VANDELS ESO public spectroscopic survey: Observations and first data release.

Laser drilling of micro-holes in single crystal silicon, indium phosphide and indium antimonide using a continuous wave (CW) 1070 nm fibre laser with millisecond pulse widths (2018)
Journal Article
Maclean, J. O., Tangkijcharoenchai, C., Coomber, S., & Voisey, K. T. (2018). Laser drilling of micro-holes in single crystal silicon, indium phosphide and indium antimonide using a continuous wave (CW) 1070 nm fibre laser with millisecond pulse widths. Procedia CIRP, 74, 407-412. https://doi.org/10.1016/j.procir.2018.08.158

The laser micro-drilling of “thru” holes, also known as via holes, in Si, InP and InSb semiconductor wafers was studied using millisecond pulse lengths from an IPG Laser Model YLR-2000 CW multimode 2 kW Ytterbium Fibre Laser and a JK400 (400 W) fibre... Read More about Laser drilling of micro-holes in single crystal silicon, indium phosphide and indium antimonide using a continuous wave (CW) 1070 nm fibre laser with millisecond pulse widths.

Glassy dynamics due to a trajectory phase transition in dissipative Rydberg gases (2018)
Journal Article
Pérez-Espigares, C., Lesanovsky, I., Garrahan, J. P., & Gutiérrez, R. (2018). Glassy dynamics due to a trajectory phase transition in dissipative Rydberg gases. Physical Review A, 98(2), https://doi.org/10.1103/physreva.98.021804

The physics of highly excited Rydberg atoms is governed by blockade or exclusion interactions that hinder the excitation of atoms in the proximity of a previously excited one. This leads to cooperative effects and a relaxation dynamics displaying spa... Read More about Glassy dynamics due to a trajectory phase transition in dissipative Rydberg gases.

Using MRI to study the alterations in liver blood flow, perfusion and oxygenation in response to physiological stress challenges: meal, hyperoxia and hypercapnia (2018)
Journal Article
Cox, E. F., Palaniyappan, N., Aithal, G. P., Guha, I. N., & Francis, S. T. (in press). Using MRI to study the alterations in liver blood flow, perfusion and oxygenation in response to physiological stress challenges: meal, hyperoxia and hypercapnia. Journal of Magnetic Resonance Imaging, ISSN 1053-1807

Background: Non-invasive assessment of dynamic changes in liver blood flow, perfusion and oxygenation using magnetic resonance imaging (MRI) may allow detection of subtle haemodynamic alterations in cirrhosis. Purpose: To assess the feasibility of... Read More about Using MRI to study the alterations in liver blood flow, perfusion and oxygenation in response to physiological stress challenges: meal, hyperoxia and hypercapnia.

Three dynamically distinct stellar populations in the halo of M49 (2018)
Journal Article
Hartke, J., Arnaboldi, M., Gerhard, O., Agnello, A., Longobardi, A., Coccato, L., …Merrifield, M. (2018). Three dynamically distinct stellar populations in the halo of M49. Astronomy and Astrophysics, 616, A123. https://doi.org/10.1051/0004-6361/201832711

Context: M49 (NGC 4472) is the dominant galaxy in subcluster B of the Virgo Cluster, and a benchmark for studying the build-up of the extended halos of brightest group galaxies in the outskirts of galaxy clusters. Aims: We investigate the kinematics... Read More about Three dynamically distinct stellar populations in the halo of M49.

Arterial spin labelling MRI to measure renal perfusion: a systematic review and statement paper (2018)
Journal Article
Odudu, A., Nery, F., Harteveld, A. A., Evans, R. G., Pendse, D., Buchanan, C. E., …Fernandez-Seara, M. A. (2018). Arterial spin labelling MRI to measure renal perfusion: a systematic review and statement paper. Nephrology Dialysis Transplantation, 33(Issue suppl_2), ii15-ii21. https://doi.org/10.1093/ndt/gfy180

Renal perfusion provides the driving pressure for glomerular filtration and delivers the oxygen and nutrients to fuel solute reabsorption. Renal ischaemia is a major mechanism in acute kidney injury and may promote the progression of chronic kidney d... Read More about Arterial spin labelling MRI to measure renal perfusion: a systematic review and statement paper.

The causes of the red sequence, the blue cloud, the green valley, and the green mountain (2018)
Journal Article
Eales, S. A., Baes, M., Bourne, N., Bremer, M., Brown, M. J., Clark, C., …Wright, A. (2018). The causes of the red sequence, the blue cloud, the green valley, and the green mountain. Monthly Notices of the Royal Astronomical Society, 481(1), 1183-1194. https://doi.org/10.1093/mnras/sty2220

The galaxies found in optical surveys fall in two distinct regions of a diagram of optical colour versus absolute magnitude: the red sequence and the blue cloud, with the green valley in between. We show that the galaxies found in a submillimetre sur... Read More about The causes of the red sequence, the blue cloud, the green valley, and the green mountain.

Exposing latent fingermarks on problematic metal surfaces using time of flight secondary ion mass spectroscopy (2018)
Journal Article
Thandauthapani, T. D., Reeve, A. J., Long, A. S., Turner, I. J., & Sharp, J. S. (2018). Exposing latent fingermarks on problematic metal surfaces using time of flight secondary ion mass spectroscopy. Science and Justice, 58(6), 405-414. https://doi.org/10.1016/j.scijus.2018.08.004

Fingermarks are a key form of physical evidence for identifying persons of interest and linking them to the scene of a crime. Visualising latent (hidden) fingermarks can be difficult and the correct choice of techniques is essential to develop and pr... Read More about Exposing latent fingermarks on problematic metal surfaces using time of flight secondary ion mass spectroscopy.

Early variations in white matter microstructure and depression outcome in adolescents with subthreshold-depression (2018)
Journal Article
Vulser, H., Martinot, M. P., Artiges, E., Miranda, R., Pentilla, J., Grimmer, Y., …Lemaitre, H. (2018). Early variations in white matter microstructure and depression outcome in adolescents with subthreshold-depression. American Journal of Psychiatry, 175(12), 1255-1264. https://doi.org/10.1176/appi.ajp.2018.17070825

Objective: White matter microstructure alterations have recently been associated with adolescence depressive episodes, but it is unknown whether they predate depression. We investigated whether subthreshold-depression in adolescence is associated wit... Read More about Early variations in white matter microstructure and depression outcome in adolescents with subthreshold-depression.

Optically excited spin pumping mediating collective magnetization dynamicsin a spin valve structure (2018)
Journal Article
Danilov, A., Scherbakov, A., Glavin, B., Linnik, T., Kalashnikova, A., Shelukhin, L., …Bayer, M. (2018). Optically excited spin pumping mediating collective magnetization dynamicsin a spin valve structure. Physical Review B, 98(6), Article 060406. https://doi.org/10.1103/PhysRevB.98.060406

We demonstrate spin pumping, i.e. the generation of a pure spin current by precessing magnetization, without application of microwave radiation commonly used in spin pumping experiments. We use femtosecond laser pulses to simultaneously launch the ma... Read More about Optically excited spin pumping mediating collective magnetization dynamicsin a spin valve structure.