University of Leeds

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    1401 research outputs found

    Dataset supporting the publication of 'Recovery of low volumes of wear debris from rat stifle joint tissues using a novel particle isolation method.'

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    The data set is part of a study in which a volume of 0.018 mm3 of clinically relevant CoCrMo, Ti-6Al-4V or Si3N4 particles was injected into rat stifle joints for seven days of in vivo exposure. The data set includes histological images of particles located within tissues sections at low and high magnifications for each of the materials. The data also includes measurements of particles that were made using image analysis software

    Dataset associated with "Magnetic properties, domain-wall creep motion, and the Dzyaloshinskii-Moriya interaction in Pt/Co/Ir thin films"

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    We study the magnetic properties of perpendicularly magnetised Pt/Co/Ir thin films and investigate the domain wall creep method of determining the interfacial Dzyaloshinskii-Moriya (DM) interaction in ultra-thin films. Measurements of the Co layer thickness dependence of saturation magnetisation, perpendicular magnetic anisotropy, and symmetric and antisymmetric (i.e. DM) exchange energies in Pt/Co/Ir thin films have been made to determine the relationship between these properties. We discuss the measurement of the DM interaction by the expansion of a reverse domain in the domain wall creep regime. We show how the creep parameters behave as a function of in-plane bias field and discuss the effects of domain wall roughness on the measurement of the DM interaction by domain expansion. Whereas modifications to the creep law with DM field and in-plane bias fields have taken into account changes in the energy barrier scaling parameter α\alpha, we find that both α\alpha and the velocity scaling parameter v0v_{0} change as a function of in-plane bias field

    Data associated with ‘Confinement of picosecond timescale current pulses by tapered coplanar waveguides.'

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    This data relates to the study of picosecond timescale pulse transmission and confinement in tapered waveguides. It includes the HFSS data which shows average electric field strength and confinement area, and a sample of transmitted THz pulses. It also includes THz peak position with distance for a curved tapered waveguide, and the current response in tapered and untapered GMR waveguides as a function of external magnetic field

    Is black carbon an unimportant ice-nucleating particle in mixed-phase clouds? Dataset

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    This dataset provides experimental and modelling data used to investigate black carbon as potentially important atmospheric ice nucleating particles. The experimetnal data show no significant ice nucleation activity above the handling blank baseline. The modelling data show that previous parameterizations overerstimate the importance of black carbon, and give an indication of the ice nucleation activity required in order for black carbon to be a significant atmospheric INP

    The Gesture of Thinking

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    The Gesture of Thinking was the first of three events conducted as part of my practice-led PhD: Painting as emergent knowledge. It was held on 9th May 2013 in Alec Clegg Studio, stage@leeds. This is a brief tour of the event. It is referred to in Chapter Two

    Helical magnetic structure and the anomalous and topological Hall effects in epitaxial B20 Fe1-yCoyGe films dataset

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    These files form the open data deposit for "Helical magnetic structure and the anomalous and topological Hall effects in epitaxial B20 Fe1-yCoyGe films dataset " by Spencer et al

    HadGEM2 radiative kernels

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    Radiative kernels generated from the HadGEM2-ES climate model, using a pre-industrial climatology. Kernels are provided for both the 38 native model levels in HadGEM2 and the 17 standard CMIP5 pressure levels. Changes in top-of-atmosphere (TOA) radiative flux and surface radiative flux are provided for perturbations in atmospheric temperature of 1 K, specific humidity (change in specific humidity that preserves relative humidity for an increase in temperature of 1 K), surface (skin) temperature of 1 K and surface albedo of 1 % (absolute). For the 38-level kernels the model pressure level and thickness (in pressure coordinates) of the layer is also provided. Contributions to longwave (LW), shortwave (SW) and net fluxes are produced for temperature and water vapour

    Dementia Carers Instrument Development (DECIDE) Workstream 1 Phase 3 data

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    This dataset contains survey data (quantitative) collected at two of three time points from informal carers of people with dementia who live in the community: at baseline (T1; n=570) and for a subset of carers six months later (T3; n=173). Test-retest data (T2) are not included in the dataset. Carers were defined as a person who provides care for a relative, friend or neighbour with dementia, who cannot cope without their support. This care may include practical household tasks, personal care, supervision, emotional support and social interaction. Carers were eligible to take part if aged ≥16 years, with capacity and English literate, and a primary carer for a partner, family member, friend or neighbour who had a diagnosis of dementia and who lives in the community. Seventy items were included that were generated from the qualitative interviews in DECIDE Phase 1. Data also included responses from the validated questionnaires EQ-5D-3L (Williams A. Euroqol - A new facility for the measurement of health-related quality-of-life. Health Policy. 1990;16(3):199-208.) and from the SWEMWBS (Tennant, R. et al. The Warwick-Edinburgh mental well-being scale (WEMWBS): development and UK validation. Health Qual Life Outcomes. 2007;5). Carers also completed sociodemographic questions

    Dementia Carers Instrument Development (DECIDE) - data introduction

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    The number of people living in the United Kingdom (UK) with dementia is rising. Having a caring role can have a huge impact on well-being, quality of life, and finances, yet without  support from informal carers, people with dementia would be dependent upon health and social care services, and government costs would be increased greatly. In 2015 the University of Leeds was awarded funding by the Medical Research Council and the National Institute for Health Research to carry out a three year project to develop a new questionnaire for measuring the quality of lives of individuals caring for someone with dementia. The study, called DECIDE (Dementia Carers Instrument Development) was led by the University of Leeds, alongside researchers from universities across the England and Wales. The measure, SIDECAR (Scales  measuring the Impact of DEmentia on CARers) will be brief and easy to complete making it useful in individual carer assessment as well as being used to inform service planning and potentially in service valuation. The project was undertaken in two stages. Stage one: A carer interview study to investigate the fundamental human needs of carers and using this information to develop potential items for SIDECAR (qualitative data). Stage two: Asking carers from across England and Wales to complete the items generated from stage one on three occasions along with other questionnaires and sociodemeographic information (quantitative data). These data were used to develop and evaluate the psychometric properties of SIDECAR. The data used to develop the questionnaire will be available to researchers until September 2023 . The quantitative and qualitative data are available through "Related resources" below. The quantitative data is openly available through DOI http://doi.org/10.5518/432. The qualitative data is available through DOI http://doi.org/10.5518/375 which will provide a summary and a link to request access

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