20,351 research outputs found

    Creating Change through Arts, Culture, and Equitable Development: A Policy and Practice Primer

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    Across the nation, artistic and cultural practices are helping to define the sustainability of urban, rural, and suburban neighborhoods. In the design of parks and open spaces; the building of public transit, housing, and supermarkets; in plans for addressing needs for community health and healing trauma; communities are embracing arts and culture strategies to help create equitable communities of opportunity where everyone can participate, prosper, and achieve their full potential. And artists are seeing themselves -- and being seen by others -- as integral community members whose talents, crafts, and insights pave the way to support community engagement and cohesion."Creating Change through Arts, Culture, and Equitable Development: A Policy and Practice Primer" highlights both promising and proven practices that demonstrate equity-focused arts and culture policies, strategies, and tools. The report describes the role of arts and culture across the nine sectors below. Within each policy chart there are goals, policies, and implementation strategies that can help achieve communities of opportunity. These policies have yielded such outcomes as: support for Native artists in reservation-based cultural economies, the creation of a citywide cultural plan, engaging low-income youth of color in using digital media, and efforts to address redevelopment, employment, food access, and environmental justice

    A complete ancient RNA genome : identification, reconstruction and evolutionary history of archaeological Barley Stripe Mosaic Virus

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    The origins of many plant diseases appear to be recent and associated with the rise of domestication, the spread of agriculture or recent global movements of crops. Distinguishing between these possibilities is problematic because of the difficulty of determining rates of molecular evolution over short time frames. Heterochronous approaches using recent and historical samples show that plant viruses exhibit highly variable and often rapid rates of molecular evolution. The accuracy of estimated evolution rates and age of origin can be greatly improved with the inclusion of older molecular data from archaeological material. Here we present the first reconstruction of an archaeological RNA genome, which is of Barley Stripe Mosaic Virus (BSMV) isolated from barley grain ~750 years of age. Phylogenetic analysis of BSMV that includes this genome indicates the divergence of BSMV and its closest relative prior to this time, most likely around 2000 years ago. However, exclusion of the archaeological data results in an apparently much more recent origin of the virus that postdates even the archaeological sample. We conclude that this viral lineage originated in the Near East or North Africa, and spread to North America and East Asia with their hosts along historical trade routes

    Gravitational Corrections to the Energy-Levels of a Hydrogen Atom

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    The first order perturbations of the energy levels of a hydrogen atom in central internal gravitational field are investigated. The internal gravitational field is produced by the mass of the atomic nucleus. The energy shifts are calculated for the relativistic 1S, 2S, 2P, 3S, 3P, 3D, 4S and 4P levels with Schwarzschild metric. The calculated results show that the gravitational corrections are sensitive to the total angular momentum quantum number.Comment: 7 page
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