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1.
C square-wave pulse inverter controlled by DSP was introduced. TMS320-serial DSP produced by Texas Instruments Corp., its developing environment and program flow, and the use of the software CCS were also introduced. According to the requirement of output waveform, the main program of control system, interruption service routine, and subroutines were designed by using modularized software design method. Offline and online experimental results indicated t 相似文献
2.
A report of an international collaborative experiment to demonstrate the uniformity obtainable using DNA profiling techniques. 总被引:2,自引:0,他引:2
P Gill S Woodroffe W B?r B Brinkmann A Carracedo B Eriksen S Jones A D Kloosterman B Ludes B Mevag 《Forensic science international》1992,53(1):29-43
This paper describes a collaborative exercise intended to demonstrate whether uniformity of DNA profile results could be achieved between different European laboratories. It was shown that this goal can be obtained provided that a common protocol is followed (specifically the use of a common electrophoretic buffer as being the most important parameter). Generally, lower molecular weight loci (with lower molecular weight fragments) such as YNH24 perform better than higher molecular weight loci such as MS43a. The results of the exercise are discussed in relation to the objectives of the European DNA profiling group (EDNAP). 相似文献
3.
Raúl Burgos 《Bulletin of Latin American research》2023,42(4):578-588
This article explores the development of inter-American Catholicism during the 1950s and 1960s. It analyses the role of the Chilean Catholic bishop Manuel Larraín (1900–1966) in his efforts to disseminate his diagnosis of underdevelopment in Latin America and to establish links with the Catholic world in the United States. Based on a review of his writings, the American press and documentation from Catholic organisations, it is suggested that the Chilean bishop advocated the implementation of social reforms and American collaboration to prevent the advance of communism and strengthen Catholicism on the continent. 相似文献
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Scholars have recently debated whether non-recognition is a blessing or a curse for democracy. Some suggest that lack of recognition forces political elites to democratize and acquire internal legitimacy to compensate for the lack of external legitimacy. Others suggest that democratization is used as a strategy by which to acquire international recognition. Still others claim that non-recognition obliges unrecognized states to rely on a patron state which, in turn, hinders the quality of democracy. To contribute to this discussion, we have conducted an in-depth case study. Focusing on democratic quality in Northern Cyprus from 2010 to 2016, it is observed that reliance on a patron state leads to dynamics of tutelage, in turn hindering the quality of democracy. 相似文献
6.
Pål E. Martinussen 《Scandinavian political studies》2008,31(2):149-172
A striking common characteristic in many Western countries at the turn of the millennium is the debate on the role of private actors in public health care systems. Following the long line of Norwegian political scientists paying attention to attitudes towards privatization, this article uses data from 2005 on medical specialists to investigate their preferences for private welfare services, and to uncover the relative role of political ideology and self-interest in affecting their attitudes. So far, few attempts have been made to test in depth the impact of ideology and self-interest as alternative explanations of the attitudes of a professional group toward a policy issue that is important to its interests. The analysis documents the fact that both public and private specialists display scepticism towards leaving welfare services in the hands of private actors. The empirical model for the multivariate analysis builds on the large body of literature on political attitudes, and incorporates variables that are derived from economic and psychological theories in order to test the impact of ideology and subjective self-interest (emphasis on high salary for job satisfaction) and objective self-interest (private economy). In addition, the model also controls for a vector of individual characteristics and professional background. For the group of full-time public specialists, both subjective and objective self-interest, together with ideology, turns out to be the major determinants of view on private welfare services. The attitudes of the private specialists are, on the other hand, not at all affected by self-interest – only by ideology. 相似文献
7.
At the turn of the first millennium, the rise of autonomous communes and city-states in northern Italy coincided with the development of a particular sense of attachment to land and city, which is widely labeled as civic patriotism. Neither the transformation of these collective identities across time nor the macrostructural dynamics behind this transformation has received much attention. Through an examination of these communes and city-states from the eleventh to the sixteenth century, this paper unpacks different forms of collective identities that prevailed in northern Italy in different periods of time, all of which have previously been labeled as “patriotism” in the literature. The differentiation I propose between “communal patriotism,” “civic nationalism,” and “city-state chauvinism” presents a more nuanced picture which highlights the differences in the ways these collective identities are produced, reproduced, and transformed. My analysis also discusses the role played by macrostructural dynamics (e.g., changing climate in the macropolitical economy as well as inter-city-state system in the peninsula) in transforming these collective identities. Alongside a longue durée evolutionary transformation, there were two conjunctural moments which created ruptures in the transformation of collective identities in northern Italy: The first took place during the territorialization of the communes and the conquest of the contado in the mid-twelfth century and the second occurred in the aftermath of the crisis of the fourteenth century. 相似文献
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Selena McKay-Davis M.F.S. Tharinia Robinson Ph.D. Ismail M. Sebetan M.D. Ph.D. Paul Stein Ph.D. 《Journal of forensic sciences》2020,65(6):2065-2070
Forensic Technicians provide crime scene investigation services and are exposed to stressful violent crimes, motor vehicle accidents, biological or chemical hazards, and other appalling imagery. Forensic Technicians would likely experience physical and psychological stress after exposure to trauma, and security vulnerabilities similar to Sworn Police Officers. The perceived availability of mental health resources, job-related physical, psychological stress, and traumatic experiences of both Forensic Technicians and Sworn Police Officers from California law enforcement agencies were investigated using a self-reported survey. Responses were evaluated for any significant differences in the perceived stress, job-related physical stress, and resulting psychological impact affecting the participants. The survey contained a mix of True/False, Circle/Check the Appropriate Box, or Likert Scale (1–5) responses. The results were evaluated statistically and discussed. Results indicated Sworn Police Officers and Forensic Technicians have different on-duty stress levels, but similar off-duty stress levels. Nearly two-thirds of 54 job-related stressors were not significantly different between the two occupations. However, Forensic Technicians reported more adverse effects in 17 physical and psychological job-related activities compared with Sworn Police Officers. Forensic Technicians reported lower awareness levels and availability of agency mental health support services than were reported by Sworn Police Officers. This study reports for the first time an unexpected outcome that perceived and job-related psychological stress is greater for Forensic Technicians than Sworn Police Officers. Possible reasons for this disparity will be discussed as well as stress management tools that should be implemented to reduce health risk factors for both career professionals as well as increase public safety. 相似文献
10.
Ayşegül Erdoğan Ph.D. Meral Esen Ph.D. Robin Simpson Ph.D. 《Journal of forensic sciences》2020,65(5):1730-1735
X-ray photoelectron spectroscopy (XPS) is a widely used technique to characterize the surface chemistry of materials. It plays a crucial role in accessing qualitative and quantitative information and in detecting the presence of chemical functional groups on the surface of any material. The forensic methods available to detect and identify elements and organic/inorganic compounds are often destructive, so evidence cannot be re-analyzed. However, XPS allows rapid analysis of samples without damaging them. Recently, an increasing number of forensic researchers have begun to study certain chemical information on fingermarks. In this study, the authors aimed to present the applicability and power of XPS imaging in fingermark analysis which can also provide specific information about the fingermark chemical composition. Herein, monochromated X-ray (Al Kα) spot size was fixed at 50 μm. XPS mapping resulted in the acquisition of spectra at each pixel, in an array of 41 × 30 pixels with a step size of 50 μm. Then, a simple discussion has been made about how the scanned surface spectrum and basic snapshot spectra are used to identify different components at a fingertip of a scanned surface area (~3 mm2). Hence, a fingermark pattern contaminated with caffeine, TiO2, and Pb/PbO deposited on the silicon wafer can be chemically mapped and visualized by XPS using principal component analysis (PCA). Thus, the present study showed the possible applicability of XPS for the identification of illicit drugs of abuse, gunshot residue, and skin care products on latent fingermark by mimicking a crime scene evidence. 相似文献