General practitioners’ perceptions of asynchronous telemedicine in a randomized controlled trial of teledermatology.

Background: Telemedicine is viewed as having a key role to play in the Government’s plans to modernise the NHS.1 However, to date there are few studies which have explored the views and acceptability of GPs towards telemedicine in primary care. Aim: To elicit the perceptions of GPs towards teledermatology (TD) before and after it’s introduction into their Practices and to observe whether GP views of TD had changed over the course of the study. Design of study: A postal questionnaire administered as part of a wider randomised controlled trial of telemedicine in dermatology. Setting: A locality group of eight General Practices in Sheffield and a single teaching hospital in Sheffield that provided the local dermatology referral service. Method: A postal questionnaire circulated to all GPs from the eight participating Practices. Results: A 85.7% (36/42) response rate was achieved. Only 21% (n=7; 95% CI: 10-37%) of respondents felt satisfied/very satisfied with TD in their Practice, 47% (n=16) said that they were dissatisfied or very dissatisfied. Thirty one per cent (n=10; 95% CI: 18-49%) said that they felt confident about diagnosis and management of care through TD, with 28% (n=9) reporting that they were unconfident. Only 23% (n=8; 95% CI: 12-39%) of respondents said that they would consider using a telemedicine system in the future, 34% (n=12) said they would probably or definitely not and 43% (n=15) were unsure. There was some evidence that GPs views about TD became more negative over the course of the study. Conclusions: The study reports less favourable GP responses to telemedicine than observed in previous studies, and suggests that the model of telemedicine described in this study paper would not be widely acceptable to GPs

Cosmology with velocity dispersion counts: an alternative to measuring cluster halo masses

The evolution of galaxy cluster counts is a powerful probe of several fundamental cosmological parameters. A number of recent studies using this probe have claimed tension with the cosmology preferred by the analysis of the Planck primary CMB data, in the sense that there are fewer clusters observed than predicted based on the primary CMB cosmology. One possible resolution to this problem is systematic errors in the absolute halo mass calibration in cluster studies, which is required to convert the standard theoretical prediction (the halo mass function) into counts as a function of the observable (e.g., X-ray luminosity, Sunyaev-Zel'dovich flux, optical richness). Here we propose an alternative strategy, which is to directly compare predicted and observed cluster counts as a function of the one-dimensional velocity dispersion of the cluster galaxies. We argue that the velocity dispersion of groups/clusters can be theoretically predicted as robustly as mass but, unlike mass, it can also be directly observed, thus circumventing the main systematic bias in traditional cluster counts studies. With the aid of the BAHAMAS suite of cosmological hydrodynamical simulations, we demonstrate the potential of the velocity dispersion counts for discriminating even similar $\Lambda$CDM models. These predictions can be compared with the results from existing redshift surveys such as the highly-complete Galaxy And Mass Assembly (GAMA) survey, and upcoming wide-field spectroscopic surveys such as the Wide Area Vista Extragalactic Survey (WAVES) and the Dark Energy Survey Instrument (DESI).Comment: 15 pages, 13 figures. Accepted for publication in MNRAS. New section on cosmological forecasts adde

Photon impact factor and kTk_T-factorization for DIS in the next-to-leading order

The photon impact factor for the BFKL pomeron is calculated in the next-to-leading order (NLO) approximation using the operator expansion in Wilson lines. The result is represented as a NLO $k_T$-factorization formula for the structure functions of small-$x$ deep inelastic scattering.Comment: 13 pages, 4 figures, typos corrected. arXiv admin note: substantial text overlap with arXiv:1009.472

Attosecond two-photon interferometry for doubly excited states of helium

We show that the correlation dynamics in coherently excited doubly excited resonances of helium can be followed in real time by two-photon interferometry. This approach promises to map the evolution of the two-electron wave packet onto experimentally easily accessible non-coincident single electron spectra. We analyze the interferometric signal in terms of a semi-analytical model which is validated by a numerical solution of the time-dependent two-electron Schr\"odinger equation in its full dimensionality.Comment: 5 pages, 4 figure

Treatment of Heavy Quarks in Deeply Inelastic Scattering

We investigate a simplified version of the ACOT prescription for calculating deeply inelastic scattering from Q^2 values near the squared mass M_H^2 of a heavy quark to Q^2 much larger than M_H^2.Comment: 14 pages, 5 figure

Entanglement and non-locality are different resources

Bell's theorem states that, to simulate the correlations created by measurement on pure entangled quantum states, shared randomness is not enough: some "non-local" resources are required. It has been demonstrated recently that all projective measurements on the maximally entangled state of two qubits can be simulated with a single use of a "non-local machine". We prove that a strictly larger amount of this non-local resource is required for the simulation of pure non-maximally entangled states of two qubits $\ket{\psi(\alpha)}= \cos\alpha\ket{00}+\sin\alpha\ket{11}$ with $0<\alpha\lesssim\frac{\pi}{7.8}$.Comment: 8 pages, 3 figure

Stirring Unmagnetized Plasma

A new concept for spinning unmagnetized plasma is demonstrated experimentally. Plasma is confined by an axisymmetric multi-cusp magnetic field and biased cathodes are used to drive currents and impart a torque in the magnetized edge. Measurements show that flow viscously couples momentum from the magnetized edge (where the plasma viscosity is small) into the unmagnetized core (where the viscosity is large) and that the core rotates as a solid body. To be effective, collisional viscosity must overcome the ion-neutral drag due to charge exchange collisions

Universal features in sequential and nonsequential two-photon double ionization of helium

We analyze two-photon double ionization of helium in both the nonsequential and sequential regime. We show that the energy spacing between the two emitted electrons provides the key parameter that controls both the energy and the angular distribution and reveals the universal features present in both the nonsequential and sequential regime. This universality, i.e., independence of photon energy, is a manifestation of the continuity across the threshold for sequential double ionization. For all photon energies, the energy distribution can be described by a universal shape function that contains only the spectral and temporal information entering second-order time-dependent perturbation theory. Angular correlations and distributions are found to be more sensitive to the photon energy. In particular, shake-up interferences have a large effect on the angular distribution. Energy spectra, angular distributions parameterized by the anisotropy parameters, and total cross sections presented in this paper are obtained by fully correlated time-dependent ab initio calculations.Comment: 12 pages, 8 figure

Re-thinking livelihood security: Why addressing the democratic deficit in economic policy-making opens up new pathways to prosperity

Citizen-led research in east London identifies livelihood security as a critical determinant of prosperity for local communities (Moore and Woodcraft, 2019; Woodcraft and Anderson, 2019). Livelihood security depends on more than income and work. Households draw on a range of assets including: secure income and good quality work; affordable, secure and good quality housing; access to key public services (healthcare, education, care, transport, digital communication); and inclusion in the social and economic life of the city. These assets display complex inter-dependencies, intersect with class, race, gender and other identities in multiple ways, and cut across sectors and policy domains that are commonly siloed in economic decision-making. In this paper, we conceptualise these assets as an ‘infrastructure’ for secure livelihoods to draw attention to their over-lapping nature and to demonstrate how knowledge based on lived experience generates fundamentally different ways of understanding the economy. We argue there is a democratic deficit in economic policy-making that must be addressed to better account for context-specific interactions between macro and micro-economic factors and generate more effective policy-making. Taking inclusive growth policies as a case in point, we explore how an expanded concept of ‘inclusion’ that incorporates participatory research, problem framing and policy development opens-up new spaces for action on place-based prosperity