Research Note: Surveillance in contemporary health and social care: friend or foe?

Peer reviewedPublisher PD

The 2016 HIGh Heels: Health effects and psychosexual benefITS (HIGH HABITS) study : systematic review of reviews and additional primary studies

Acknowledgements We thank S.M. Barran (Guy’s and St Thomas NHS Foundation Trust) for general comments on the topic and its social context. We thank S. Reynolds for comments as a member of the public on the introduction and discussion, in particular with regard to the social context of the work. Funding This research received no specific grant from any funding agency in the public, commercial or not-for-profit sectors.Peer reviewedPublisher PD

Student diversity, extra-curricular activities and perceptions of graduate outcomes

This research will examine how different student groups engage with extra-curricular activities and what effect these activities have on their degree and graduate outcomes. Recent research has indicated that different student groups have different degree and employment outcomes, this research examines how different student groups engage with extra-curricular activities and what effect these activities have on their degree and graduate outcomes. It examines what extra-curricular activities students participate in and whether different groups have preferences for different types of activities (i.e. are there patterns of participation in certain activities by certain groups of students) and if so what impact does this patterning have on graduate employment potential. Extra-curricular activities are broadly defined in this research, such as part-time work, involvement in University union clubs and societies, (and different types of clubs and societies, cultural, sporting and other), other University related activities such as volunteering, class representation, etc. and other activities outside of University life, such as family commitments and community activitie

Spurious shear induced by the tree rings of the LSST CCDs

We present an analysis of the impact of the tree rings seen in the candidate sensors of the Large Synoptic Survey Telescope (LSST) on galaxy-shape measurements. The tree rings are a consequence of transverse electric fields caused by circularly symmetric impurity gradients in the silicon of the sensors. They effectively modify the pixel area and shift the photogenerated charge around, displacing the observed photon positions. The displacement distribution generates distortions that cause spurious shears correlated with the tree-rings patterns, potentially biasing cosmic shear measurements. In this paper we quantify the amplitude of the spurious shear caused by the tree rings on the LSST candidate sensors, and calculate its 2-point correlation function. We find that 2-point correlation function of the spurious shear on an area equivalent to the LSST field of view is order of about $10^{-13}$, providing a negligible contribution to the 2-point correlation of the cosmic shear signal. Additional work is underway, and the final results and analysis will be published elsewhere (Okura et al. (2015), in prep.

Challenges to the DGP Model from Horizon-Scale Growth and Geometry

We conduct a Markov Chain Monte Carlo study of the Dvali-Gabadadze-Porrati (DGP) self-accelerating braneworld scenario given the cosmic microwave background (CMB) anisotropy, supernovae and Hubble constant data by implementing an effective dark energy prescription for modified gravity into a standard Einstein-Boltzmann code. We find no way to alleviate the tension between distance measures and horizon scale growth in this model. Growth alterations due to perturbations propagating into the bulk appear as excess CMB anisotropy at the lowest multipoles. In a flat cosmology, the maximum likelihood DGP model is nominally a 5.3 sigma poorer fit than Lambda CDM. Curvature can reduce the tension between distance measures but only at the expense of exacerbating the problem with growth leading to a 4.8 sigma result that is dominated by the low multipole CMB temperature spectrum. While changing the initial conditions to reduce large scale power can flatten the temperature spectrum, this also suppresses the large angle polarization spectrum in violation of recent results from WMAP5. The failure of this model highlights the power of combining growth and distance measures in cosmology as a test of gravity on the largest scales.Comment: 12 pages, 7 figures, 4 tables, minor revisions reflect PRD published versio