1,115 research outputs found

    Model selection for amplitude analysis

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    Model complexity in amplitude analyses is often a priori under-constrained since the underlying theory permits a large number of possible amplitudes to contribute to most physical processes. The use of an overly complex model results in reduced predictive power and worse resolution on unknown parameters of interest. Therefore, it is common to reduce the complexity by removing from consideration some subset of the allowed amplitudes. This paper studies a method for limiting model complexity from the data sample itself through regularization during regression in the context of a multivariate (Dalitz-plot) analysis. The regularization technique applied greatly improves the performance. An outline of how to obtain the significance of a resonance in a multivariate amplitude analysis is also provided

    Fifty Years of Segregation: Black Higher Education in Kentucky, 1904-1954

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    Kentucky was the last state in the South to introduce racially segregated schools and one of the first to break down racial barriers in higher education. The passage of the infamous Day Law in 1904 forced Berea College to exclude 174 students because of their race. Throughout the 1930s and 1940s black faculty remained unable to attend in-state graduate and professional schools. Like black Americans everywhere who fought overseas during World War II, Kentucky\u27s blacks were increasingly dissatisfied with their second-class educational opportunities. In 1948, they financed litigation to end segregation, and the following year Lyman Johnson sued the University of Kentucky for admission to its doctoral program in history. Civil racism indirectly defined the mission of black higher education through scarce fiscal appropriations from state government. It also promoted a dated 19th-century emphasis on agricultrual and vocational education for African Americans. John Hardin reveals how the history of segregated higher education was shaped by the state\u27s inherent, though sometimes subtle, racism.https://digitalcommons.wku.edu/history_book/1007/thumbnail.jp

    W&M Elder Law Clinic: Training Students and Helping Seniors

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    Retailing Religion: Business Promotionalism in American Christian Churches in the Twentieth Century

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    Evangelist Billy Graham once remarked, "We are selling the greatest product on earth - belief in God - why shouldn't we promote it as effectively as we promote a bar of soap?" His comparison is misleading in its simplicity, since it strikes at the heart of the complex relationship between religion and the modern American marketplace. Retailing Religion examines how American Christian churches in the twentieth century promoted their institutions and messages by adopting modern public relations, advertising, personal sales, and marketing techniques from the secular business community. Retailing Religion develops four principal themes. First, Christian churches in the twentieth century followed the promotional trends of corporate firms with only a slight lag time. Second, this borrowing nurtured the growth of rationalism and individualism in American Christianity, which contributed significantly to the religion's modernization. This transformation was especially pronounced in churches' growing dependence on rational methods and numerical metrics, and in their transition from a producer orientation to a consumer orientation. Third, church promotional efforts increased not the secularization but the pluralization of American Christianity by erecting a platform for cooperation among churches, denominations, and religions. Fourth, church promotionalism fostered an ongoing tension between their sacred mission and their secular methods. Wrestling with this tension, both advocates and critics of church promotion labored throughout the century to develop historical, theological, and pragmatic arguments to defend or denounce the practices. The tension was so complex and often contradictory that some of the strongest advocates for religious retailing were also its biggest critics. The key historical actors in this study are the leading pioneers and practitioners of church promotion: organizations such as the Religious Public Relations Council; experts such as Gaines Dobbins, Philip Kotler, Peter Drucker, and George Barna; pastors such as Robert Schuller, Bill Hybels, and Rick Warren; and critics such as David Wells and Os Guinness. In tracing their adoption, development, implementation, and dissemination of the latest business promotional methods, Retailing Religion provides a broad portrait of American religion's struggle to remain both faithful to the divine and relevant to the world

    Single-family housing in Sarpy County urbanized area, Nebraska, 1960-1990

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    The increase in the number of new single-family homes, associated with the spread of urban development around an urban center, has long been of interest to both geographers and students of urban growth*. The geographer\u27s concern arises because new housing promotes urban sprawl. Inefficiences in the provision of public services, notably in the development of secondary streets and highways within the study area, have created irregularities in the spatial pattern around the city. The expansion of new housing into suburban areas has also been associated with a trend in rising prices of housing most distant from the central city. In spite of the importance of such an effort, few geographers have devoted much attention to the study of the extent or increase of new single-family housing within part of an urbanized area, or even to the exploration of the operation of the housing market

    Quantification of soluble organic fraction measurement variation in diesel particulate matter emissions

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    Heavy-duty diesel engines (HDDE) are the dominate prime movers of goods and services in the United States (US) and the world today. HDDE will continue to lead the transportation sector in the near term because of its superior fuel economy and performance compared to existing alternatives. However, HDDE produce many harmful emissions constituents that include: hydrocarbons (HC), oxides of nitrogen (NOx), carbon monoxide (CO), and particulate matter (PM). Due to these harmful emissions, the US Environmental Protection Agency (EPA) has been entrusted to enforce the Clean Air Act to limit the amount of emissions that can be produced from these HDDE. Additionally, the EPA requires that each state maintain a state implantation plan (SIP) to ensure minimum air quality standards. Because of SIP concerns, California and Texas have identified on-road heavy-duty diesel engines as a significant pollution source and have implemented an alternative diesel fuel formulation program in order to meet their SIP. To meet these more stringent fuel requirements, refineries use additives in diesel fuel to reduce these emissions. One main concern is when reducing these emissions using fuel additives, PM may be increased. PM is composed of soluble organics along with other constituents. The soluble organic fraction (SOF) contains polynuclear (or polycyclic) aromatic hydrocarbons (PAH) and nitro-PAHs (nitrogen-bound PAH) that are carcinogens and linked to heart and respiratory diseases. Because of this, California has required that the SOF emissions from HDDE fueled with on-road fuels sold in the state of California must not increase SOF more than 6% above a 48 cetane, 10% aromatic reference fuel SOF emissions values.;The purpose of this research was to develop a test procedure for SOF determination and quantifying the variability when using Soxhlet extraction. This was accomplished by extracting SOF from PM gathered from engines exercised over an engine dynamometer transient test cycle using various fuels. Also, the filter media, loaded and unloaded with PM, was examined to understand weighing variations over time in a controlled environment. Lastly, handling issues with the transportation of the filter media was examined.;The test procedure developed for SOF determination produced a coefficient of variation of 4.3%. Weighing variations were found to be caused from constituents lost by the filter media during the extraction process. However, some of this weight loss was then regained while the filter was conditioning in a conditioned clean room. This weight gain can be expressed using the equation: Wgain =.001175(thours0.74014). Lastly, shipping and receiving of filter media caused slight weight loss of initial weighing before extraction but had no affect on weight gain after extraction

    John Gresham Hardin Papers, 1933-1956

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    John Anderson Hardin Papers - Accession 536

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    This collection consists of papers relating to John Anderson Hardin (1920-2010). The papers relate mainly to his business and political career which includes two terms as Mayor of Rock Hill, South Carolina from 1956-1963. These records include many papers dealing with many City of Rock Hill businesses. The collection also includes papers dealing with John Hardin’s career in the Savings and Loan Business, including his term as President of the U.S. League of Savings Association. There are also some records of a personal interest and relate to his family.https://digitalcommons.winthrop.edu/manuscriptcollection_findingaids/1639/thumbnail.jp

    A Study Of Community Recreation Areas Facilities And Activities For Negroes In Brayan, Waco, Corsicana, Tyler, Texas, And Limestone County

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    The need for recreation became more apparent after World War I. The interest, concern, and investment of both money and energy are compelling testimony to this fact. At one time, recreation was the by-product of the average breadwinner, since he worked twelve hours a day, totally dependent upon his employer. Today the shorter working day and increased wages have paved the way for greater recreational pursuits.1 From the beginning of time, girls as well as boys, have had their play ways; women, as well as men; their recreations. The leisure activities for girls and women connected with home duties have been largely individual and self-initiated. Recently, many radical changes in women\u27s lives have indicated that if every girl is to have an adequate opportunity to play and develop a wholesome and satisfying way of using free time some of their recreational needs should be re-organized 2 Modern civilization and the development of the last fifty years have greatly changed the leisure life of the people, just as the work-life has been modified. Fifty years ago, America was predominantly a nation of small towns and rural communities. Most homes were surrounded by large front and backyards and were situated in the midst of open country; others were located close to woods, streams, and vacant lots to provide some recreational activities. Streets were safe for play; there were barns and sheds and animals; cellars, attics, and porches for playroom and equipment. People were acquainted with their neighbors; there was friendliness and social life among the people. Young people lived at home with their families and in stable neighborhoods
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