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241.
Lorenzo Gitto M.D. Serenella Serinelli M.D. Ponni Arunkumar M.D. Steven M. White M.D. Ph.D. 《Journal of forensic sciences》2020,65(1):117-127
Sudden cardiac death is a significant cause of mortality in adults with congenital heart disease (CHD). The Cook County Medical Examiner's Office database was queried for cases of CHD as a cause of death in the period between July 2008 and April 2019. Twenty-two cases were identified, including 11 decedents with simple defects and 10 decedents with complex defects. All of the subjects were in apparent good health at the time of death. In the absence of other obvious causes of death, simple defects were considered cases of sudden cardiac death. Significant cardiac morphological changes were common in complex defects. While 16 cases had known, diagnosed/treated CHD, 5 cases had no diagnosis prior to autopsy. In these cases, the ability to recognize CHD (sometimes subtle) helped in determining the causes of death. Therefore, forensic pathologists must be able to properly recognize various forms of CHD and request consultations, when needed. 相似文献
242.
Modern printing toners represent a prime example of subvisible particles that can be easily transferred to hands, clothing, and other surfaces. To explore the potential evidentiary value of toner particles, toner samples were collected from known printer cartridges and characterized by various microanalytical techniques to establish the properties most useful for recognition, identification, and comparison. Environmental samples (i.e., dust) were then collected from various locations at varying distances from toner-based printers, using both tape lifts and carbon adhesive stubs, to assess the possibility of detecting toner. By light microscopy, toner can be recognized on the basis of particle size and shape, as well as color. Further examination of the micromorphology in the field emission scanning electron microscope reveals characteristic morphologies and differences in surface texture and shape among toner sources. Raman spectroscopy provides chemical identification of the pigment (or pigment class) and, in some cases, also permits identification of the polymer component. While black and blue pigment chemistry remained constant among toner varieties that were studied (copper phthalocyanine and carbon black), variation in yellow and magenta pigments was observed. Analysis of dust samples collected from various environments demonstrated that while toner is consistently detectable in close proximity to printers (within 2 feet), it also can be detected in dust collected in nearby rooms. This research demonstrates that toner particles can be located, characterized, and discriminated, using a suite of microanalytical methods that are applicable to forensic casework. 相似文献
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Political Behavior - Despite widespread concern over false beliefs about politically-relevant facts, little is known about how strongly Americans believe their answers to poll questions. I propose... 相似文献
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Lynn T. White III 《Journal of Chinese Political Science》2009,14(3):229-251
The range of questions of interest to scholars of Chinese politics has changed slowly over recent decades, but the depth of empirical probes to answer them has quickly improved. One reason is the rise of China-born and Chinese-American researchers. Another is greater access to local information in China after the start of reforms there. Future developments in this field are likely to enrich current American political science, which will require fresh methods for adequate study of the planet's most populous polity. 相似文献
249.
Graham Spencer 《Contemporary Politics》2004,10(1):37-55
The Northern Ireland peace process has provided the space for the emergence of an articulate loyalist politics which has had implications for the traditionally obstructive and negative representations of unionist discourse. During talk and negotiations which led to the Good Friday Agreement of 1998, leaders of the Progressive Unionist Party and the Ulster Democratic Party (both political wings of loyalist paramilitary groupings) voiced positions which assisted the possibilities for building constitutional change based along more moderate lines than those associated with dominant unionism. However, have the news media been receptive to such articulations and, if not, what problems have they created for the communication of loyalist positions? By considering such questions, this article explores the development of loyalism and loyalist communications in the early years of peace in Northern Ireland. 相似文献
250.
One of the central questions facing policy-makers is how to allocate limited federal funds among alternative AIDS research strategies. A rational answer requires judgments about both the prospects of scientific progress and the societal value of research outcomes. Using a decision-analytic approach, this paper examines the marginal returns from additional funding of basic biology, epidemiology and mathematical modeling, vaccine development and testing, treatment development and testing, and behavioral and social science. A survey of a recent Institute of Medicine Committee on AIDS was conducted to elicit scientific judgments on the prospects for scientific progress in each of the five areas. The scientists were quite capable of transcending their disciplinary orientation as reflected in the dominant sentiment in favor of more behavioral and social science research. A comparison of the actual FY 1987 AIDS research budget with the budgets recommended by the scientific experts also suggests that basic biological research deserves greater emphasis.This research was supported by the Andrew W. Mellon Foundation in the form of a grant to the Health Science Policy Working Group of the Harvard Division on Health Policy, Research and Education. 相似文献