2,182 research outputs found

    A reduction in ag/residential signature conflict using principal components analysis of LANDSAT temporal data

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    Methods to accurately delineate the types of land cover in the urban-rural transition zone of metropolitan areas were considered. The application of principal components analysis to multidate LANDSAT imagery was investigated as a means of reducing the overlap between residential and agricultural spectral signatures. The statistical concepts of principal components analysis were discussed, as well as the results of this analysis when applied to multidate LANDSAT imagery of the Washington, D.C. metropolitan area

    Relative potentials of concentrating and two-axis tracking flat-plate photovoltaic arrays for central-station applications

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    The purpose of this study is to assess the relative economic potentials of concenrating and two-axis tracking flat-plate photovoltaic arrays for central-station applications in the mid-1990's. Specific objectives of this study are to provide information on concentrator photovoltaic collector probabilistic price and efficiency levels to illustrate critical areas of R&D for concentrator cells and collectors, and to compare concentrator and flat-plate PV price and efficiency alternatives for several locations, based on their implied costs of energy. To deal with the uncertainties surrounding research and development activities in general, a probabilistic assessment of commercially achievable concentrator photovoltaic collector efficiencies and prices (at the factory loading dock) is performed. The results of this projection of concentrator photovoltaic technology are then compared with a previous flat-plate module price analysis (performed early in 1983). To focus this analysis on specific collector alternatives and their implied energy costs for different locations, similar two-axis tracking designs are assumed for both concentrator and flat-plate options

    Sales Taxation of Capital Transactions in Maryland

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    Transforming Inmate Character within a Correctional Setting by Experiencing Spiritual Formation through the Conventional Relationship with God

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    Historically, the correctional system was concerned with locking up criminals and keeping them off the streets. Society\u27s safety was, and still is, of primary importance. Unfortunately, most felons complete their sentencing and are released back into the community with the same belief systems and character traits that brought them to prison. Christian programming within the correctional setting is succeeding only at changing surface behavior, not genuine character transformation. This results in recidivism rates that are identical to those of non-Christian imnates. In order to address this problem, I propose that spiritual formation focused upon a covenantal relationship with Jesus Christ will create more measurable evidence of character change in those incarcerated than the current model being delivered by most Christian groups. In chapter two I present biblical materials showing that reconciliation and redemption are a part of the saving message of the Gospel. I will reflect upon biblical narratives demonstrating that God desires a covenantal relationship with people and that entrance into this relationship begins the process of character transformation. In chapter three I present materials from Christian history and thought that show the long history of the church in working with offenders. I will look at how spiritual formation has woven its way through the history of God\u27s people. I will focus upon the monastic movement and conclude with the contemporary voice of Dallas Willard. In chapter four I present materials from the field of corrections. I will outline criminal risk factors and how these contribute to a life of crime. I will look at how programming focused on spiritual formation can make a difference in the character of inmates. In chapter five I will look at spiritual leadership as it relates to the correctional setting. I will address how spiritual leadership can utilize spiritual formation to effect change in inmate behavior and attitudes. In the conclusion I present how entering into a covenant relationship with God, rather than focusing upon a generic spirituality, will have a greater effect upon behavior and bring about positive character change

    Implementation of the National Partnership for Action to End Health Disparities: A Three-Year Retrospective

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    In April 2011, the U.S. Department of Health and Human Services’ (HHS) Office of Minority Health (OMH) launched the National Partnership for Action to End Health Disparities (NPA) to increase the effectiveness of efforts to eliminate health disparities by coordinating partners, leaders, and stakeholders committed to action. At its core, the NPA is an experiment in collaboration that relies heavily on those on the front line who are actively engaged in minority health work at multiple levels. It gives them the responsibility of identifying and helping to define core actions, new approaches, and new partnerships that ultimately will help to close the health gap in the United States. This paper provides a retrospective examination of the NPA’s creation and development of health equity coalitions at the federal and regional levels and its establishment of strategic national partnerships to move a health equity agenda forward. The article explores how the development of this infrastructure has, in turn, led to the implementation of actions and activities to address health disparities. The article concludes with a reflection on emerging opportunities for improvement and ways forward to continue the initiative’s evaluation and secure its sustainability

    Identification and mapping of coal refuse banks and other targets in the anthracite region

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    ERTS-1 MSS data covering parts of Pennsylvania's southern and eastern middle anthracite coal fields were studied to determine how well accumulations of coal refuse could be identified and mapped by computer analysis and processing. Spectral signatures of coal refuse targets were similar to water, but had higher reflectances in all channels. Relative reflectances were in the order 4 5 or = 6 7. Although no underflight photography was at hand to judge mapping success, correlation was made, with 1:24,000 scale U.S.G.S. maps dated 1947 and 1948. Coal refuse targets correlated well with existing maps

    Is Hyperconjugation Responsible For The Gauche Effect In 1-Fluoropropane And Other 2-Substituted-1-Fluoroethanes?

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    The energies and geometries of a series of 2-substituted-1-fluoroethanes were computed at the MP2/6-311++G**(6D)//MP2/6-31+G* level of theory for both the maxima and minima of the rotation about the C-C bond. The results did not support the predictions of a hyperconjugative model, that both 1,2-difluoroethane and 1-chloro-2-fluoroethane would strongly prefer a gauche conformation, and that 1-fluoro-2-silylethane would strongly prefer an anti conformation. The existence of competing electrostatic interactions between the fluorine and the substituents at C-2 was indicated by the detailed geometries of the gauche conformers and by the calculated sensitivity of the gauche-anti energy differences to the presence of a polar solvent. However, Fourier analyses of the torsional potential energies were wholly consistent with hyperconjugative electron donation into the C-F sigma* orbital contributing to the conformational preferences of these 1-fluoroethanes. Fourier analyses also showed that hyperconjugation contributes to the small variations in C-C and C-F bond lengths and in fluorine atomic charges that were computed. The torsional potential energies, variations in geometry and atomic charge, and sensitivity to solvent were all in accord with the expected ranking of hyperconjugative electron donating ability of bonds to carbon, C-Si \u3e C-H \u3e C-C \u3e C-Cl \u3e C-F

    Investigations of an urban area and its locale using ERTS-1 data supported by U-photography

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    An urban area in central Pennsylvania and the surrounding locality were investigated separately at first by photointerpretation of ERTS-1 imagery and by computer processing of MSS tapes. Next the photointerpretation and processing were coordinated. The results of the cooperative effort of photointerpreters and computer processing analysts were much improved over independent efforts. It was found that single frames of U-2 photography could be projected onto printer output maps with little recognizable distortion in areas 10 to 25 cm square. In this way targets could be identified for use as training areas for computer processed signature identification. In addition, at any stage of category mapping, the level of success in correct classification could be assessed by this method. The results of the classification of the study area are discussed
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