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Monitoring the mineralisation of bone nodules in vitro by space- and time-resolved Raman micro-spectroscopy. (2013)
Journal Article
Ghita, A., Pascut, F. C., Sottile, V., & Notingher, I. (2013). Monitoring the mineralisation of bone nodules in vitro by space- and time-resolved Raman micro-spectroscopy. Analyst, 139(1), https://doi.org/10.1039/C3AN01716H

Raman microscopy was used as a label-free method to study the mineralisation of bone nodules formed by mesenchymal stem cells cultured in osteogenic medium in vitro. Monitoring individual bone nodules over 28 days revealed temporal and spatial change... Read More about Monitoring the mineralisation of bone nodules in vitro by space- and time-resolved Raman micro-spectroscopy..

New measurements of the ionizing ultraviolet background over 2 < z < 5 and implications for hydrogen reionization (2013)
Journal Article
Becker, G. D., & Bolton, J. S. (2013). New measurements of the ionizing ultraviolet background over 2 < z < 5 and implications for hydrogen reionization. Monthly Notices of the Royal Astronomical Society, 436(2), 1023-1039. https://doi.org/10.1093/mnras/stt1610

We present new measurements of the intensity of the ionizing ultraviolet background and the global emissivity of ionizing photons over 2 < z < 5. Our results are based on a suite of updated measurements of physical properties of the high-redshift int... Read More about New measurements of the ionizing ultraviolet background over 2 < z < 5 and implications for hydrogen reionization.

Gravitational waves from oscillon preheating (2013)
Journal Article
Zhou, S.-Y., Copeland, E. J., Easther, R., Finkel, H., Mou, Z.-G., & Saffin, P. M. (2013). Gravitational waves from oscillon preheating. Journal of High Energy Physics, 2013, Article 26. https://doi.org/10.1007/JHEP10%282013%29026

Oscillons are long-lived, localized excitations of nonlinear scalar fields which may be copiously produced during preheating after inflation, leading to a possible oscillon-dominated phase in the early Universe. For example, this can happen after axi... Read More about Gravitational waves from oscillon preheating.

Diagnosis of tumors during tissue-conserving surgery with integrated autofluorescence and Raman scattering microscopy (2013)
Journal Article
Kong, K., Rowlands, C. J., Varma, S., Perkins, W., Leach, I. H., Koloydenko, A. A., …Notingher, I. (2013). Diagnosis of tumors during tissue-conserving surgery with integrated autofluorescence and Raman scattering microscopy. Proceedings of the National Academy of Sciences, 110(38), https://doi.org/10.1073/pnas.1311289110

Tissue-conserving surgery is used increasingly in cancer treatment. However, one of the main challenges in this type of surgery is the detection of tumor margins. Histopathology based on tissue sectioning and staining has been the gold standard for c... Read More about Diagnosis of tumors during tissue-conserving surgery with integrated autofluorescence and Raman scattering microscopy.

Paramagnetic, near-infrared fluorescent Mn-doped PbS colloidal nanocrystals (2013)
Journal Article
Turyanska, L., Moro, F., Knott, A. N., Fay, M. W., Bradshaw, T. D., & Patanè, A. (2013). Paramagnetic, near-infrared fluorescent Mn-doped PbS colloidal nanocrystals. Particle and Particle Systems Characterization, 30(11), https://doi.org/10.1002/ppsc.201300184

Mn-doped PbS colloidal nanocrystals in aqueous solution are paramagnetic and optically active in the technologically important biological window between 1.2 and 0.8 μm. Cytoxicity studies show that exposure of human cell lines to the nanoparticles at... Read More about Paramagnetic, near-infrared fluorescent Mn-doped PbS colloidal nanocrystals.

Reference layer artefact subtraction (RLAS): A novel method of minimizing EEG artefacts during simultaneous fMRI (2013)
Journal Article
Chowdhury, M. E., Mullinger, K. J., Glover, P., & Bowtell, R. W. (2014). Reference layer artefact subtraction (RLAS): A novel method of minimizing EEG artefacts during simultaneous fMRI. NeuroImage, 84, 307-319. https://doi.org/10.1016/j.neuroimage.2013.08.039

Large artefacts compromise EEG data quality during simultaneous fMRI. These artefact voltages pose heavy demands on the bandwidth and dynamic range of EEG amplifiers and mean that even small fractional variations in the artefact voltages give rise to... Read More about Reference layer artefact subtraction (RLAS): A novel method of minimizing EEG artefacts during simultaneous fMRI.

Poststimulus undershoots in cerebral blood flow and BOLD fMRI responses are modulated by poststimulus neuronal activity (2013)
Journal Article
Mullinger, K. J., Mayhew, S. D., Bagshaw, A. P., Bowtell, R., & Francis, S. T. (2013). Poststimulus undershoots in cerebral blood flow and BOLD fMRI responses are modulated by poststimulus neuronal activity. Proceedings of the National Academy of Sciences, 110(33), https://doi.org/10.1073/pnas.1221287110

fMRI is the foremost technique for noninvasive measurement of human brain function. However, its utility is limited by an incomplete understanding of the relationship between neuronal activity and the hemodynamic response. Though the primary peak of... Read More about Poststimulus undershoots in cerebral blood flow and BOLD fMRI responses are modulated by poststimulus neuronal activity.

Adiabatic and isocurvature perturbation projections in multi-field inflation (2013)
Journal Article
Gordon, C., & Saffin, P. M. (2013). Adiabatic and isocurvature perturbation projections in multi-field inflation. Journal of Cosmology and Astroparticle Physics, 2013(8), Article 021. https://doi.org/10.1088/1475-7516/2013/08/021

Current data are in good agreement with the predictions of single field inflation. However, the hemispherical asymmetry seen in the cosmic microwave background data, may hint at a potential problem. Generalizing to multi-field models may provide one... Read More about Adiabatic and isocurvature perturbation projections in multi-field inflation.

Comparative study of in situ N2 rotational Raman spectroscopy methods for probing energy thermalisation processes during spin-exchange optical pumping (2013)
Journal Article
Newton, H., Walkup, L. L., Whiting, N., West, L., Carriere, J., Havermeyer, F., …Barlow, M. J. (2014). Comparative study of in situ N2 rotational Raman spectroscopy methods for probing energy thermalisation processes during spin-exchange optical pumping. Applied Physics B, 115(2), 167-172. https://doi.org/10.1007/s00340-013-5588-x

Spin-exchange optical pumping (SEOP) has been widely used to produce enhancements in nuclear spin polarisation for hyperpolarised noble gases. However, some key fundamental physical processes underlying SEOP remain poorly understood, particularly in... Read More about Comparative study of in situ N2 rotational Raman spectroscopy methods for probing energy thermalisation processes during spin-exchange optical pumping.

Dynamics of a vertical cavity quantum cascade phonon laser structure (2013)
Journal Article
Maryam, W., Akimov, A. V., Campion, R., & Kent, A. (2013). Dynamics of a vertical cavity quantum cascade phonon laser structure. Nature Communications, 4, Article 2184. https://doi.org/10.1038/ncomms3184

Driven primarily by scientific curiosity, but also by the potential applications of intense sources of coherent sound, researchers have targeted the phonon laser (saser) since the invention of the optical laser over 50 years ago. Here we fabricate a... Read More about Dynamics of a vertical cavity quantum cascade phonon laser structure.

Duality and decay of macroscopic F-strings (2013)
Journal Article
Skliros, D. P., Copeland, E. J., & Saffin, P. M. (2013). Duality and decay of macroscopic F-strings. Physical Review Letters, 111(4), Article 041601. https://doi.org/10.1103/PhysRevLett.111.041601

We study the decay of fundamental string loops of arbitrary size L/min(n,m)≫√α′, labeled by (n, m; λn, ¯λm), where n, m correspond to left- and right-mover harmonics and λn, ¯λm to polarization tensors, and find that a description in terms of the rec... Read More about Duality and decay of macroscopic F-strings.

Magnetostrictive thin films for microwave spintronics (2013)
Journal Article
Parkes, D., Shelford, L., Wadley, P., Holy, V., Wang, M., Hindmarch, A., …Rushforth, A. (2013). Magnetostrictive thin films for microwave spintronics. Scientific Reports, 3, Article 2220. https://doi.org/10.1038/srep02220

Multiferroic composite materials, consisting of coupled ferromagnetic and piezoelectric phases, are of great importance in the drive towards creating faster, smaller and more energy efficient devices for information and communications technologies. S... Read More about Magnetostrictive thin films for microwave spintronics.

Coherent time evolution and boundary conditions of two-photon quantum walks in waveguide arrays (2013)
Journal Article
D. A. Meinecke, J., Poulios, K., Politi, A., C. F. Matthews, J., Peruzzo, A., Ismail, N., …G. Thompson, M. (2013). Coherent time evolution and boundary conditions of two-photon quantum walks in waveguide arrays. Physical Review A, 88(1), Article 012308. https://doi.org/10.1103/PhysRevA.88.012308

Multi-photon quantum walks in integrated optics are an attractive controlled quantum system, that can mimic less readily accessible quantum systems and exhibit behavior that cannot in general be accurately replicated by classical light without an exp... Read More about Coherent time evolution and boundary conditions of two-photon quantum walks in waveguide arrays.

Maternal smoking during pregnancy and fetal organ growth: a magnetic resonance imaging study (2013)
Journal Article
Anblagan, D., Jones, N. W., Costigan, C., Parker, A. J., Allcock, K., Aleong, R., …Gowland, P. A. (2013). Maternal smoking during pregnancy and fetal organ growth: a magnetic resonance imaging study. PLoS ONE, 8(6), Article e67223. https://doi.org/10.1371/journal.pone.0067223

Objective: To study whether maternal cigarette smoking during pregnancy is associated with alterations in the growth of fetal lungs, kidneys, liver, brain, and placenta. Design: A case-control study, with operators performing the image analysis bli... Read More about Maternal smoking during pregnancy and fetal organ growth: a magnetic resonance imaging study.

Identifying the sources of the pulse artefact in EEG recordings made inside an MR scanner (2013)
Journal Article
Mullinger, K. J., Havenhand, J., & Bowtell, R. W. (2013). Identifying the sources of the pulse artefact in EEG recordings made inside an MR scanner. NeuroImage, 71(1), https://doi.org/10.1016/j.neuroimage.2012.12.070

EEG recordings made during concurrent fMRI are confounded by the pulse artefact (PA), which although smaller than the gradient artefact is often more problematic because of its variability over multiple cardiac cycles. A better understanding of the P... Read More about Identifying the sources of the pulse artefact in EEG recordings made inside an MR scanner.

Resonant tunnelling and negative differential conductance in graphene transistors (2013)
Journal Article
Britnell, L., Gorbachev, R., Geim, A., Ponomarenko, L., Mishchenko, A., Greenaway, M., …Eaves, L. (2013). Resonant tunnelling and negative differential conductance in graphene transistors. Nature Communications, 4, Article 1794. https://doi.org/10.1038/ncomms2817

The chemical stability of graphene and other free-standing two-dimensional crystals means that they can be stacked in different combinations to produce a new class of functional materials, designed for specific device applications. Here we report res... Read More about Resonant tunnelling and negative differential conductance in graphene transistors.

Spontaneous orbiting of two spheres levitated in a vibrated liquid (2013)
Journal Article
Pacheco Martinez, H., Liao, L., Hill, R., Swift, M. R., & Bowley, R. (2013). Spontaneous orbiting of two spheres levitated in a vibrated liquid. Physical Review Letters, 110(15), Article 154501. https://doi.org/10.1103/PhysRevLett.110.154501

In the absence of gravity, particles can form a suspension in a liquid irrespective of the difference in density between the solid and the liquid. If such a suspension is subjected to vibration there is relative motion between the particles and the f... Read More about Spontaneous orbiting of two spheres levitated in a vibrated liquid.

Regional structural differences across functionally parcellated Brodmann areas of human primary somatosensory cortex (2013)
Journal Article

Ultra-high-field (UHF) MRI is ideally suited for structural and functional imaging of the brain. High-resolution structural MRI can be used to map the anatomical boundaries between functional domains of the brain by identifying changes related to the... Read More about Regional structural differences across functionally parcellated Brodmann areas of human primary somatosensory cortex.