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排序方式: 共有218条查询结果,搜索用时 15 毫秒
61.
62.
Abstract: Optimization of a light emitting diode (LED)-based excitation system for the detection of pretreated fingerprint fluorescence is described. Fluorescent ridges can usually be excited by irradiation with forensic light sources such as xenon arc lamps or quartz-halogen lamps with high-power output and suitable filters. However, they are too expensive for many crime laboratories in smaller organizations. We concentrated on LEDs which have advantages over conventional light sources in that they are simpler and of lower cost, but the power output and quality of each individual LED unit is not sufficient for the detection of weak fluorescent ridges. To resolve this subject, blue and green LED arrays composed of ninety LED units were adopted and suitable low pass filters for them were designed. An experimental system, consisting of blue and green LED arrays with the suitable low pass filters for illumination, high pass filters for viewing, a digital camera and a computer, was tested. The fluorescent images of cyanoacrylate ester fumed/rhodamine 6G stained fingerprint on white polyethylene sheet and weak fluorescent ridges of ninhydrin/indium chloride treated fingerprint on white paper were successfully detected and photographed. It was shown that the improvement of LED beam in intensity and quality can compensate the disadvantages, resulting in well-contrasted images. 相似文献
63.
The Group of 77 in the international climate negotiations: recent developments and future directions
Sjur Kasa Anne T. Gullberg Gørild Heggelund 《International Environmental Agreements: Politics, Law and Economics》2008,8(2):113-127
First, we describe and analyze the main set of G77 positions in the climate negotiations and the dynamics behind the emergence
of these positions. While it is puzzling that the G77 has managed to maintain itself as a group in spite of internal differences
along variables as prosperity, emissions and vulnerability to climate change, we claim that a core element behind this cohesion
is that these countries share domestic governance problems as much as poverty and economic underdevelopment. Second, we discuss
how recent trends of economic and political development in the third world influence the climate policy strategies of the
G77 group in the future. The main factor here is the economicand social progress in states like China, India and Brazil, which
separates them from the poorer and less powerful G77 states. Increasing heterogeneity along variables like governance, growth,
and importance for the international economy is creating an increasing drive among the most successful G77 states towards
bilateral agreements with industrialised powers. We do not foresee a departure from traditional G77 positions and membership
by these states in the official climate negotiations or a departure from the Kyoto process, but an increasing reliance on
bilateral agreements with industrialized countries that link considerations for energy security and the environment. The ability
to gain these advantages without commitments may make these states less interested in adopting commitments for the post-Kyoto
period. This is unfortunate for the LDCs and the AOSIS groups within the G77, who probably are most vulnerable to climate
change.
相似文献
Sjur KasaEmail: |
64.
Taejin Hwang 《亚洲研究》2019,51(2):253-273
ABSTRACTAs the largest contingent of Americans in postwar South Korea, the G.I. best represented the United States’ Cold War objectives. Their deployment was an emblem of hard power containment, but the G.I. also embodied soft power integration, and through both, G.I.s helped to promote Pax Americana. This article focuses on the militarized masculinity of these ambassadors of America and their people-to-people diplomacy in South Korea between 1954 and 1966. These American G.I.s constructed their militarized masculinity vis-à-vis the Korean male Other, their “lesser” counterparts – the hapless houseboy, the inferior partner soldier, and the menacing slicky boy. At the same time, this liberal imperialism did not go uncontested. Violent imaginaries of the American G.I. from the borderlands were used by Koreans to demand a new bilateral framework – the Status of Forces Agreement in 1966 – to replace the outmoded wartime extraterritorial jurisdiction wielded by the American military after cessation of hostilities on the Korean peninsula in 1953. The militarized masculinity practiced in everyday encounters, thus, became the basis of a critique of American liberal imperialism in one of the United States closest Cold War “brother” nations. 相似文献
65.
Deeanna M. Button 《Criminal Justice Studies》2015,28(4):484-502
LGBQ youth are more likely to consider, plan, and/or attempt suicide compared to their heterosexual peers. Evidence from the general population suggests that risky behaviors, like suicide, may be mediated by protective factors, including social support and self-efficacy. Using Agnew’s general strain theory and data from a statewide probability sample, the results of this study suggest that victimization, as a source of strain, is a risk factor for both LGBQ and heterosexual youth suicidality. While social support and self-efficacy reduce the risk of suicidality among heterosexual youth, they are not significant protective factors for LGBQ youth. Theoretical and policy implications are discussed. 相似文献
66.
Peter Marshall 《圆桌》2015,104(1):19-30
This article offers a personal view of Britain’s place in the contemporary world, analysed in terms of five interlocking rings: the traditional three, i.e. relations with the United States, with Europe and the Commonwealth, to which are added the concepts of process and soft power. 相似文献
67.
Bruce Gilley 《Third world quarterly》2015,36(8):1405-1420
This article is a contribution to recent literature on the shape of the polycentric world order. It argues that the Third World remains a valid concept for describing the interests and ideas that shape the foreign policies of many key non-Western states. However, the Third World has changed in a fundamental way. The article describes the historical emergence and contemporary manifestations of a ‘creative’ Third World in contrast to the ‘protest’ Third World of the past. It describes the nature of this shift and how it is reshaping Western leadership. It argues that the main challenge for the West is to create a coherent pluralism in international order that embraces this creative Third World. 相似文献
68.
69.
Burton Velmer S. Cullen Francis T. Evans T. David Dunaway R. Gregory 《Journal of Quantitative Criminology》1994,10(3):213-239
Recently a revisionist view of strain theory's empirical adequacy has emerged which holds that the theory's explanatory power depends on how it is operationalized. With an adult community sample, we empirically assess three separate measures of strain to explain self-reported crime: the gap between aspirations and expectations, blocked opportunities, and relative deprivation. The findings reveal that the aspirations-expectations measure is not related to criminal involvement, while perceived blocked opportunities and feelings of relative deprivation significantly affect adult offending. These relationships, however, fail to persist after measures from competing theories (i.e., low self-control, differential association, and social bond) are introduced as controls in the regression equations. Thus, measures from rival theories offer a more fruitful approach to explaining self-reported adult offending.A version of this paper was presented at the 1993 American Society of Criminology meetings, Phoenix, Arizona. 相似文献
70.
Riss 《wohnrechtliche bl?tter: wobl》2007,20(9):247
Die Ver?u?erung eines von mehreren in einheitlichen Mietr?umen geführten selbst?ndigen Betriebes bewirkt wegen der ohne Zustimmung
des Vermieters nicht m?glichen Zerlegung der Mietrechte den Rechtsübergang nicht. 相似文献