1,665 research outputs found

    Extension Facts Leaflet on the 1956 Acreage Reserve Phase of the Soil Bank

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    Can your arthritis patients get to the tablets? A study of medicine bottle opening

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    There has been increasing interest recently in the presentation and packaging of drugs for elderly patients and the manufacture of child-proof containers. This had led to the development of specially designed bottles or blister packs now commonly used fur over the counter analgesic preparations. Rheumatoid arthritis and osteoarthrosis are common diseases and many patients suffering from these diseases develop considerable deformities of the hand leading to an inability to perform activities of daily living. In a previous study (Mason et. al.) 200 patients with rheumatoid arthritis were shown to have difficulty in opening child-proof containers. In this study we decided to include patients with osteoarthrosis as well and to test the ability of both rheumatoid and osteoarthritic patients to open blister packs as well as child-proof containers

    Transnuclear TRP1-Specific CD8 T Cells with High or Low Affinity TCRs Show Equivalent Antitumor Activity

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    We have generated, via somatic cell nuclear transfer, two independent lines of transnuclear (TN) mice, using as nuclear donors CD8 T cells, sorted by tetramer staining, that recognize the endogenous melanoma antigen TRP1. These two lines of nominally identical specificity differ greatly in their affinity for antigen (TRP1(high) or TRP1(low)) as inferred from tetramer dissociation and peptide responsiveness. Ex vivo-activated CD8 T cells from either TRP1(high) or TRP1(low) mice show cytolytic activity in 3D tissue culture and in vivo, and slow the progression of subcutaneous B16 melanoma. Although naïve TRP1(low) CD8 T cells do not affect tumor growth, upon activation these cells function indistinguishably from TRP1(high) cells in vivo, limiting tumor cell growth and increasing mouse survival. The anti-tumor effect of both TRP1(high) and TRP1(low) CD8 T cells is enhanced in RAG-deficient hosts. However, tumor outgrowth eventually occurs, likely due to T cell exhaustion. The TRP1 TN mice are an excellent model for examining the functional attributes of T cells conferred by TCR affinity, and they may serve as a platform for screening immunomodulatory cancer therapies

    1980 Farm Business Analysis Report General Crop Summary

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    Highly compressed water structure observed in a perchlorate aqueous solution

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    The discovery by the Phoenix Lander of calcium and magnesium perchlorates in Martian soil samples has fueled much speculation that flows of perchlorate brines might be the cause of the observed channeling and weathering in the surface. Here, we study the structure of a mimetic of Martian water, magnesium perchlorate aqueous solution at its eutectic composition, using neutron diffraction in combination with hydrogen isotope labeling and empirical potential structure refinement. We find that the tetrahedral structure of water is heavily perturbed, the effect being equivalent to pressurizing pure water to pressures of order 2 GPa or more. The Mg2+ and ClO4− ions appear charge-ordered, confining the water on length scales of order 9 Å, preventing ice formation at low temperature. This may explain the low evaporation rates and high deliquescence of these salt solutions, which are essential for stability within the low relative humidity environment of the Martian atmosphere
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