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Hatfield, United Kingdom

The University of Hertfordshire is a public research university in Hertfordshire, England, United Kingdom. The university is based largely in Hatfield, Hertfordshire. Its antecedent institution, Hatfield Technical College, was founded in 1952 and was identified as one of 25 Colleges of Technology in the United Kingdom in 1959. In 1992, Hatfield Polytechnic was granted university status by the British government and subsequently renamed University of Hertfordshire. From the time it was awarded university status, Hertfordshire's enrolment has steadily increased. As of 2013, it has 25,130 students and 2,358 staff, 812 of which are academic members of staff. It has more than 5,200 international students and a global network of more than 160,000 alumni. Hertfordshire is a member of Association of Commonwealth Universities and University Alliance. The university has an annual turnover of £234m.The university's academic activities are organised into 11 schools, within which there are around 50 academic departments and 24 research centres. The university has a unique history in training aerospace engineers. The university offers courses in architecture, astronomy, business, computing, education, engineering, humanities, natural science, pharmacy and social science. Wikipedia.

Illness perceptions refer to organized beliefs surrounding the symptoms, consequences, time course, controllability, and causes of an illness. Illness perceptions have been shown to predict a range of psychosocial and clinical outcomes in patients with ESRD including depression, nonadherence, and even survival. Accordingly, personal illness beliefs are novel yet potentially modifiable prognostic factors. Studies are required to assert whether illness perception-based interventions deliver the promise of improved subjective and clinical well-being in patients with ESRD. © 2011 Wiley Periodicals, Inc.

Delduc F.,CNRS Physics Laboratory | Magro M.,CNRS Physics Laboratory | Vicedo B.,University of Hertfordshire
Physical Review Letters | Year: 2014

An integrable deformation of the type IIB AdS5×S5 superstring action is presented. The deformed field equations, Lax connection, and κ-symmetry transformations are given. The original psu(2,2|4) symmetry is expected to become q deformed. © 2014 American Physical Society.

Hughes G.,University of Hertfordshire
Research in Sports Medicine | Year: 2014

There is considerable evidence to support a number of biomechanical risk factors associated with non-contact anterior cruciate ligament (ACL) injury. This paper aims to review these biomechanical risk factors and highlight future directions relating to them. Current perspectives investigating trunk position and relationships between strength, muscle activity and biomechanics during landing/cutting highlight the importance of increasing hamstring muscle force during dynamic movements through altering strength, muscle activity, muscle length and contraction velocity. In particular, increased trunk flexion during landing/cutting and greater hamstring strength are likely to increase hamstring muscle force during landing and cutting which have been associated with reduced ACL injury risk. Decision making has also been shown to influence landing biomechanics and should be considered when designing tasks to assess landing/cutting biomechanics. Coaches should therefore promote hamstring strength training and active trunk flexion during landing and cutting in an attempt to reduce ACL injury risk. Copyright © 2014 Taylor & Francis Group, LLC.

Hardcastle M.J.,University of Hertfordshire
Monthly Notices of the Royal Astronomical Society | Year: 2013

I investigate the effect of non-uniform magnetic fields in the extended structures of radio galaxies on the observed synchrotron and inverse-Compton emission. On the assumption of an isotropic field, with a given power spectrum and a Gaussian distribution of the Cartesian components of the magnetic field strength, I derive a simple integral that can be used numerically to calculate the synchrotron emissivity from any electron population. In the case of power-law spectra, I show that it is possible to estimate the difference between the synchrotron emissivity from a region with such a field and that from the commonly assumed arrangement where B is constant everywhere, though fully tangled, and that this difference is small, though it increases if the electron energy density scales with the field. An aged electron spectrum in such a field produces a characteristic curved synchrotron spectrum which differs significantly from the classical Jaffe-Perola spectrum, and I discuss some effects that this might have on standard spectral age fitting. Finally, I show that inverse-Compton scattering of the cosmic microwave background is only moderately affected by such a field structure, with the effects becoming more important if the electrons follow the field. Magnetic field estimates in the literature from combined synchrotron and inverse-Compton modelling will give reasonable estimates of the mean magnetic field energy density if the field is non-uniform but isotropic.

Vicedo B.,University of Hertfordshire
Journal of Physics A: Mathematical and Theoretical | Year: 2015

We describe a unifying framework for the systematic construction of integrable deformations of integrable σ-models within the Hamiltonian formalism. It applies equally to both the 'Yang-Baxter' type as well as 'gauged WZW' type deformations which were considered recently in the literature. As a byproduct, these two families of integrable deformations are shown to be Poisson-Lie T-dual of one another. © 2015 IOP Publishing Ltd.

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