625 research outputs found

    Wragg, David S.

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    Effective Media Relations: How to Get Results -3/E.

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    The power of the media is unquestionable-the impact it can have on public opinion and decision making is unique-and knowing how to use it effectively I an essential skill for all public relations professionals give clear, practical guidance on how to work journalist to get the best possible media coverage. In part 1, Alison theaker looks at the media context and provides an overview of the law, ownership, ethics, newm information on the growing importance of e-mail and internet use. In part 2, david wragg looks at the opportunities that are available in the traditional press and gives practical advice on how to wrk with them. There is also new information on the growing importance of e-mail and internet use

    IDEXX Labrador retriever study

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    ## Access ## This dataset is held in the Edinburgh DataVault, directly accessible only to authorised University of Edinburgh staff. External users may request access to a copy of the data by contacting the Principal Investigator, Contact Person or Data Manager named on this page. University of Edinburgh users who wish to have direct access should consult the information about retrieving data from the DataVault at: https://www.ed.ac.uk/is/research-support/datavault .Analyses conducted by David Wragg during his postdoctoral tenure. Project was funded by IDEXX. Analyses of Dogs Life dogs selected for phenotype information including coat colour and more. Other phenotype information is managed by Dylan Clements and Jeffrey Schoenebeck

    Practical Filters Using Distributed RC Structures

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    Title: Practical Filters Using Distributed RC Structures, Author: Edmund J. Wragg, Location: ThodeTheoretical and experimental studies into practical filters using distributed RC structures are described. Various techniques to surmount the transcendental nature of the circuit parameters of such structures are considered and shown to be mostly too clumsy or restricted for practical use. The use of computer-aided analysis together with a sound physical understanding is suggested as an alternative. Application of the structures to active filters is considered and the experimental development of lowpass and bandpass amplifiers using them described. This leads to the presentation of a general design procedure for bandpass amplifiers using distributed RC null circuits. It is concluded that distributed RC filters suffer from a number of limitation but have a part to play as a circuit element and are now ready to advance to the stage of practical implementation.ThesisMaster of Engineering (ME

    An Exploration of the Dynamics of Consensual Approaches in Biodiversity Planning for the Wider Countryside: Evaluating the Usefulness and Applicability of Actor-Network Theory

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    This research examines the usefulness of applying theoretical principles from the Sociology of Translation and Actor Network Theory to the scenario of biodiversity planning in Oxfordshire between the early nineteen nineties and 2001. It develops a model derived from a social constructionist approach to considering Nature, and seeks to apply it to empirical data on the development of Oxfordshire's Local Biodiversity Action Plan. The data is considered in relation to the four poles of the model which are the 'scientific knowledge or technical' pole; the 'institutional' pole; the 'production of practices' pole and the 'nature protected' pole. The idea that is applied is that scientific knowledge that is generated for a purpose becomes the accepted wisdom and consequently is institutionalized. From this acceptance of the importance of scientific or technical authority, practices will then be generated (for example, land or water management strategies) and these then protect particular elements of nature; essentially what society, and more specifically, the actors involved with problematising the issue deem as being elements that are important to preserve. Also, there is a time and space dimension built into the model since the author builds on the ideas of actor-network theorists who argue that a network is not a flat shape but that actors may act at a distance (e. g. global actor) but still be linked into a localized network. Similarly, actors may be incorporated from different times but may be held into place within a given network because their views or actions are part of a stable agreement (e. g. text/intermediary object) that has encapsulated a number of different actors.The actor-networks presented in this thesis are heterogeneous in nature in that they incorporate elements of nature and the human world as different actors represent the views of others. The research explores stable and unstable networks that are founded within consensual approaches through partnership working between many different types of organisation

    Chemical Structures of Specific Sodium Ion Battery Components Determined by Operando Pair Distribution Function and X-ray Diffraction Computed Tomography

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    To improve lithium and sodium ion battery technology we must understand how the properties of the components are controlled by their chemical structures. Operando structural studies give us some of the most useful information on how batteries work, but it remains difficult to separate out the contributions of the various components of a battery stack (e.g. electrodes, current collectors, electrolyte and binders) and examine specific materials. We have used operando X-ray diffraction computed tomography (XRD-CT) to study specific components of an essentially unmodified, working cell and extract detailed, space resolved structural information on both crystalline and amorphous phases present during cycling. We illustrate this method with the first detailed structural examination of the cycling of sodium in a phosphorus anode, revealing surprisingly different mechanisms for sodiation and desodiation in this promising, high capacity anode system

    Genome-wide analysis reveals the extent of EAV-HP integration in domestic chicken

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    Background: EAV-HP is an ancient retrovirus pre-dating Gallus speciation, which continues to circulate in modern chicken populations, and led to the emergence of avian leukosis virus subgroup J causing significant economic losses to the poultry industry. We mapped EAV-HP integration sites in Ethiopian village chickens, a Silkie, Taiwan Country chicken, red junglefowl Gallus gallus and several inbred experimental lines using whole-genome sequence data. Results: An average of 75.22 ± 9.52 integration sites per bird were identified, which collectively group into 279 intervals of which 5 % are common to 90 % of the genomes analysed and are suggestive of pre-domestication integration events. More than a third of intervals are specific to individual genomes, supporting active circulation of EAV-HP in modern chickens. Interval density is correlated with chromosome length (P < 2.31−6), and 27 % of intervals are located within 5 kb of a transcript. Functional annotation clustering of genes reveals enrichment for immunerelated functions (P < 0.05). Conclusions: Our results illustrate a non-random distribution of EAV-HP in the genome, emphasising the importance it may have played in the adaptation of the species, and provide a platform from which to extend investigations on the co-evolutionary significance of endogenous retroviral genera with their hosts

    Catford et al. 2019 Ecol Lett_E93 modelled data.xlsx

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    Data from: Catford, J.A, Smith, A.L., Wragg, P.D., Clark, A.T., Kosmala, M., Cavender-Bares, J., Reich, P.B. & Tilman, D. (2019) Traits linked with species invasiveness and community invasibility vary with time, stage and indicator of invasion in a long-term grassland experiment. Ecology Letters
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