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651.
The computer automated scanning electron microscope. X-ray microanalysis of Firearms Discharge Residue (FDR) can reveal substantial information about the circumstances of their generation beyond the presence of characteristic gunshot residue (GSR). Indicators of the type of weapon and ammunition used can he obtained from the distribution of GSR particle shapes and from the multi-element analysis of the FDR sample. This is demonstrated for a large database of GSR samples from nine different handguns and over 60 different ammunitions. An example classification scheme is presented for the supporting particles generally found present in FDR. When particle type area concentration ratios are normalized to the iron (Fe) particle type, results show it is possible to distinguish much about the metal used in the weapon manufacture, whether it was of large or small caliber, whether the bullets were jacketed or plated, and whether the cartridge cases were of aluminum, brass, or nickel-plated brass. Standardization of such analytical schemes would be advantageous. 相似文献
652.
Bacterial infection due to Bartonella henselae commonly develops in children and young adults following cat/dog contacts and/or cat/dog scratches. Regional lymphadenopathy is its most common clinical expression. However, encephalitis and Parinaud's syndrome (oculoglandular syndrome) have also been reported as has systemic illness. A review of the international literature in all languages revealed no fatal complications in immunocompetent hosts. A four-year-old white child with no underlying illness began to have seizure-like activity. She was taken to a local hospital and subsequently transferred to a medical center. The child was treated aggressively for seizures and fever of unknown origin. However, her condition rapidly declined and she died without a specific diagnosis. At autopsy there was marked cerebral edema with no gross evidence of acute meningitis. Microscopic exams revealed multiple granulomatous lesions as well as a meningitis and encephalitis. A variety of cultures and stains were negative for acid fast and fungal organisms. Warthin-Starry stains of involved tissue including brain and liver revealed pleomorphic rod shaped bacilli consistent with Barronella henselae. Analysis of brain tissue with polymerase chain reaction (PCR) and Southern blot for the deoxyribonucleic acid (DNA) was definitive for DNA of Bartonella henselae bacteria. 相似文献
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Bruce E. Johnson 《Journal of policy analysis and management》1984,3(4):501-515
Dramatic changes in the executive and legislative budget processes over the last ten years have elevated the Office of Management and Budget (OMB) to a new position of power and importance. Within the executive branch the budget process has become more highly centralized in the president's office; and within the Congress a similar centralization has occurred. In both branches the OMB has become the key institution for coordinating the actions of the budget-making powers. At the same time, the much-discussed “iron triangles” explored by analysts of the budgetary system have lost much of their power to control the process. Although the OMB's active involvement in the congressional budget process diminished in 1983, the institutional relationships necessary for a more centralized budget process remain and can be reactivated to deal with the predicted enormous deficits. 相似文献
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An intensive field study of 17 correctional personnel training programs was conducted to assess the organization-environment context in which these programs emerged and operated. Content analysis of site visit data revealed that correctional training programs less often served specific organization goal achievement purposes, and more often served as general strategies for coping with external environmental demands and pressures. A theoretical framework for examining organization-environment relations is described, and then used to analyze correctional training programs as a boundary-spanning activity that relates correctional organizations to environmental conditions. Organizational responses to environmental demands are placed along a continuum of adjustment ranging from survival, to adaptation, and innovation. Organizational responses to environmental demands, in turn, are related to training patterns that dovetail with the major needs of organizations and their personnel in efforts to adjust to the environment. 相似文献
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This study examines correlates of the Beck Hopelessness Scale within an adolescent population. Consistent with studies employing adults as subjects, Hopelessness scores were found to be associated with depression and external locus of control. Additionally, a significant positive correlation was found between Hopelessness scores and an index of general maladjustment. The Hopelessness measure was, however, found to be unrelated to self-reported health status.Data for this study were collected as part of a larger investigation involved with the development and validation of an adolescent measure of life stress which was funded by a grant to the senior author from the University of Washington Graduate School Research Fund.Received Ph.D. in clinical psychology from Northern Illinois University. Major interests are clinical-child psychology and psychopathology of children and adolescents.Major interests are clinical-child psychology and suicide. 相似文献
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