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Dilys M. Hill 《公共行政管理与发展》1987,7(4):333-349
Singapore is an island state with no formal lower tier of government. The network of consultation and mobilization created after Independence in 1959 is now raising important issues of consensus and compliance. Twenty-five years of continuous one-party rule offer opportunities to evaluate the working of the mechanisms of integration and participation. In the late 1980s the highly urbanized, multi-ethnic society is placing new demands on the government, and questions of decentralization and feedback are high on the political agenda. 相似文献
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The use of ortho- and para-phenylenediamine (OPD & PPD respectively) for the enhancement of fingerprints in blood has been investigated. Optimal pH conditions and H2O2 concentrations have been determined using UV/Vis spectroscopy. Both OPD and PPD are effective and less hazardous alternatives to the presently used 3,3'-diaminobenzidine (DAB) for the development of blood fingerprints, especially on porous surfaces. The orange color of OPD and the purple color of PPD offer alternative colors to the brown color of DAB and the light green color of ABTS for standing out against particular backgrounds. Both OPD and PPD can be used after ninhydrin treatment, but the reverse is not the case. 相似文献
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Jonathan Grix 《政治学》2002,22(3):175-186
The aim of this article is twofold: first, to present an accessible way of introducing students to the key generic terms of social science research. There is an obvious need for clarifying the generic tools and terminology of the social sciences across the disciplines, as academics argue past each other, using identical terms but attaching different meanings to them. Secondly, this article presents the interrelationship between the core concepts of social science (ontology, epistemology, methodology, methods and sources). This 'directional' and logical relationship needs to be understood, if students – and academics – are to engage in constructive dialogue and criticism of each others' work. 相似文献
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Privately sold bond insurance is the most common form of credit enhancement for municipal bonds. Research generally finds that bond insurance reduces interest costs for lower rated, long–term debt issues. Researchers have concluded that these results are consistent with presumed investor risk aversion, as well as more "rational" risk management behaviors, and with theories concerning the efficiency–enhancing properties of financial intermediation in imperfect markets. We propose a research agenda based both on traditional theories and on additional hypotheses that seek to account for the observed use of bond insurance where net savings would not normally be predicted. 相似文献
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