975 research outputs found

    Radiation shielding for Centaur aft bulkhead

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    Lightweight radiation shield for Centaur aft bulkhea

    XIV.—On Torsional Oscillations of Wires

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    Note on some generally accepted Views regarding Vision.

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    Lifting a Weak Poisson Bracket to the Algebra of Forms

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    We detail the construction of a weak Poisson bracket over a submanifold of a smooth manifold M with respect to a local foliation of this submanifold. Such a bracket satisfies a weak type Jacobi identity but may be viewed as a usual Poisson bracket on the space of leaves of the foliation. We then lift this weak Poisson bracket to a weak odd Poisson bracket on the odd tangent bundle, interpreted as a weak Koszul bracket on differential forms on M. This lift is achieved by encoding the weak Poisson structure into a homotopy Poisson structure on an extended manifold, and lifting the Hamiltonian function that generates this structure. Such a construction has direct physical interpretation. For a generic gauge system, the submanifold may be viewed as a stationary surface or a constraint surface, with the foliation given by the foliation of the gauge orbits. Through this interpretation, the lift of the weak Poisson structure is simply a lift of the action generating the corresponding BRST operator of the system

    The Scottish Universities: A Record of Their Development During The Period 1826-1926

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    Effect of a carbohydrate and branched-chain amino acid beverage on skill performance in soccer players

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    The present studies investigated the effect of a carbohydrate and branched-chain amino acid (CHO+BCAA) beverage on cognitive and sport specific skill performance in soccer players. [This is an excerpt from the abstract. For the complete abstract, please see the document.

    Young, well-educated and adaptable people: Chilean exiles, identity and daily life in Canada, 1973 to the present day

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    "This dissertation describes the challenges and changes to lifestyle and identity experienced by twenty-one Chileans who came to Canada as exiles between 1973 and 1978. It is based largely on the testimony of the exiles themselves, augmented by research conducted at archives in Canada, Chile and the 'united States as well as primary and secondary sources that focus on modem Chilean history, Canadian immigration history, and the subject of exile. The experiences of the people I interviewed are contextualized by relating them to the events that pushed them out of Chile following the coup d'état of 11 September 1973, and the process by which they gained entry into Canada despite being from the wrong side of the Cold War ideological divide. Once resettled in Canada, the interviewees became part of a community whose primary raison d'être was to denounce the military government that ruled their homeland and denied them their place in the Chilean nation. The development of a culture of exile gave Chileans in Canada both a sense of continued belonging to their vision of the national community and also an outlet to express their condemnation of the regime that had made them outcasts. At the same time, I argue that the Chilean exiles of the 1970s eventually experienced transformations in their sense of personal and collective identity as the years passed and they became connected to their Canadian surroundings through work, family life and a new sense of belonging. The integration of many Chilean exiles into Canadian society, in turn, illustrates how immigration and refugee policy at the time favored the admission of ""young, well-educated and adaptable people"" who could become successful immigrants and bring benefits to the country, regardless of their ideological beliefs.
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