727 research outputs found

    Closing Keynote: Let’s Not Stop Now, Where We Go From Now

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    Goals and challenges of the Rural Grocery Initiative are discussed, followed by responses to grocer challenges, including generating community support, meeting minimum buying requirements, identifying and assisting with sustainable models of grocery operation, and building information networks for rural grocers and stakeholders

    Closing Keynote: Kansas State University’s “Rural Grocery Initiative”

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    Why focus on rural food retail? Rural grocery stores provide economic development, food access, and are important community hubs. Kansas State University’s Rural Grocery Initiative’s goals are to identify challenges facing rural grocery stores, develop responses to those challenges, identify and detail sustainable business models of grocer operation, and build virtual and face-to-face information networks for rural grocers

    Interpretation of a basic hypergeometric identity with Lie characters and Young tableaux

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    A combinatorial interpretation involving semistandard tableaux is provided for a four parameter terminating sum identity for the basic hypergeometric series 6φ5. This identity is first produced by taking the principal specialization of a tensor product identity for two GL(n) characters

    Interpretation of a basic hypergeometric identity with Lie characters and Young tableaux

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    A combinatorial interpretation involving semistandard tableaux is provided for a four parameter terminating sum identity for the basic hypergeometric series 6φ5. This identity is first produced by taking the principal specialization of a tensor product identity for two GL(n) characters

    Recent Advances in the Chemistry of SmI2–H2O

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    Recent work from our laboratories has shown SmI2–H2O to be a versatile, readily-accessible and non-toxic reductant that is more powerful than SmI2. This review describes the reduction of functional groups that were previously thought to lie beyond the reach of SmI2 and complexity-generating cyclisations and cyclisation cascades triggered by the reduction of the ester carbonyl group with SmI2–H2O

    Towards the total synthesis of Daphniyunnine B

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    This thesis describes the development of a series of synthetic routes towards the first synthesis of Daphniyunnine B, a Daphniphyllum alkaloid, utilising novel reactions and cascades. Studies began with an envisaged enantioselective Michael cascade reaction, which alternatively gave rise to a novel, efficient Michael-aldol cascade reaction affording perhydroindole structures in moderate to excellent diastereoselectivity. The enantioselective synthesis of the methyl-substituted core of Daphniyunnine B was achieved via an initial highly enantioselective organocatalytic Michael addition followed by a stereoselective organocatalytic intramolecular Michael addition.The stereocontrolled synthesis of the AC bicyclic core of (±) Daphniyunnine B was achieved via a quaternisation cyclisation approach.The stereo controlled synthesis of the ACD tricyclic core of (±) Daphniyunnine B was achieved via an intramolecular Diels-Alder fragmentation reaction. Preliminary studies of an enantioselective variant are encouraging.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Supporting the use of user generated content in journalistic practice

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    Social media and user-generated content (UGC) are increasingly important features of journalistic work in a number of different ways. However, their use presents major challenges, not least because information posted on social media is not always reliable and therefore its veracity needs to be checked before it can be considered as fit for use in the reporting of news. We report on the results of a series of in-depth ethnographic studies of journalist work practices undertaken as part of the requirements gathering for a prototype of a social media verification ‘dashboard’ and its subsequent evaluation. We conclude with some reflections upon the broader implications of our findings for the design of tools to support journalistic work
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