4,454 research outputs found

    Meeting with the Hebrew author Elias Hurwitz

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    White paper; handpainted; on the reverse of Luftwaffe uniform pattern. Digitized posters are related to the activities of Jewish displaced persons drawn from the Records of Displaced Persons Camps and Centers in Germany (RG 294.2) Italy (RG 294.3) and Austria (RG 294.4) held by YIVO Archives. Please consult the historical note for those record groups for further information.Digital ImageDigital finding aid available

    Obituary announcement about author and labor activist Sh. Mendelson

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    Brown paper; handpainted. Digitized posters are related to the activities of Jewish displaced persons drawn from the Records of Displaced Persons Camps and Centers in Germany (RG 294.2) Italy (RG 294.3) and Austria (RG 294.4) held by YIVO Archives. Please consult the historical note for those record groups for further information.Digital ImageDigital finding aid available

    Walker Brothers Quarries Limited fonds, 1975, 1980-1981, 1984, 1987-1989

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    Serving the Niagara and surrounding areas for over 120 years, Walker Industries has made its impact not only commercially, but also culturally. Beginning in 1875 with the erection of a stone sawing mill on a property John Walker purchased from the Welland Canal Loan Company. One of the first projects Walker cut stone for was the Merritton Town Hall. In 1882 the business expanded to include Walkers children, changing the name to Walker & Sons. Eventually in 1887 the two eldest sons took control of the business operation and their partnership changed the company’s name to Walker Brothers, the same year the company began operating its first quarry. The quarry was conveniently located alongside the 3rd Welland canal, offering easy access to Toronto and Hamilton. It was also close to the railway system which allowed immediate access to Thorold and Niagara Falls and later access to parts of Ontario and Quebec. The quarry supplied stone to build numerous halls and armouries across Ontario. A use was also found for the ‘waste products’ of cutting the limestone. Leftover stone chips were sent to paper mills, where stone was needed as part of the sulphite pulp process for making paper. Beginning to supply the Ontario Paper Company with stone in 1913, meant not only long, hard, work, but also more profit for the company. Before mechanization, most of the loading and unloading of the stone was done by hand, taking 19 man-hours to load an 18 yard railway car. Mechanization followed in 1947 when the plant became fully mechanized making the work easier and increasing production rates. In 1957 the company moved from its original location and opened the St. Catharines Crushed Stone Plant.This archive contains materials relating to the Walker Brothers Quarries Limited. The bulk of the materials are correspondence, meeting minutes and media releases. The materials have been kept in original order, except where noted

    Sweeping has no effect on renormalized turbulent viscosity

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    We perform renormalization group analysis (RG) of the Navier-Stokes equation in the presence of constant mean velocity field U0\mathbf U_0, and show that the renormalized viscosity is unaffected by U0\mathbf U_0, thus negating the ``sweeping effect", proposed by Kraichnan [Phys. Fluids {\bf 7}, 1723 (1964)] using random Galilean invariance. Using direct numerical simulation, we show that the correlation functions u(k,t)u(k,t+τ)\langle {\mathbf u} ({\mathbf k}, t){\mathbf u}({\mathbf k}, t+\tau) \rangle for U0=0\mathbf U_0 =0 and U00\mathbf U_0 \ne 0 differ from each other, but the renormalized viscosity for the two cases are the same. Our numerical results are consistent with the RG calculations

    Bio-optical investigation of phytoplankton production in the southern Benguela ecosystem

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    This study aims to evaluate various existing models for the estimation of PP in the southern Benguela ecosystem, and to investigate the photophysiological responses of phytoplankton to changes in environmental conditions

    Bouncing and emergent cosmologies from Arnowitt–Deser–Misner RG flows

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    Asymptotically safe gravity provides a framework for the description of gravity from the trans-Planckian regime to cosmological scales. According to this scenario, the cosmological constant and Newton’s coupling are functions of the energy scale whose evolution is dictated by the renormalization group (RG) equations. The formulation of the RG equations on foliated spacetimes, based on the Arnowitt-Deser-Misner (ADM) formalism, furnishes a natural way to construct the RG energy scale from the spectrum of the Laplacian operator on the spatial slices. Combining this idea with an RG improvement procedure, in this work we study quantum gravitational corrections to the Einstein-Hilbert action on Friedmann-Lemaître-Robertson-Walker backgrounds. The resulting quantum-corrected Friedmann equations can give rise to both bouncing cosmologies and emergent Universe solutions. Our bouncing models do not require the presence of exotic matter and emergent Universe solutions can be constructed for any allowed topology of the spatial slices

    RG 9200-L11-001 Vietnam Mailbag Records

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    Discusses poor conditions in camp, being attacked regularly, mentions letter written by Jeff Walker on his behalf; Envelope/Lette

    RG 9200-L11-001 Vietnam Mailbag Records

    No full text
    Discusses poor conditions in camp, being attacked regularly, mentions letter written by Jeff Walker on his behalf; Envelope/Lette
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