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41.
This paper considers the notion of cycle avoiding trajectories in majority voting tournaments and shows that they underlie and guide several apparently disparate voting processes. The set of alternatives that are maximal with respect to such trajectories constitutes a new solution set of considerable significance. It may be dubbed the Banks set, in recognition of the important paper by Banks (1985) that first made use of this set. The purpose of this paper is to informally demonstrate that the Banks set is a solution set of broad relevance for understanding group decision making in both cooperative and non-cooperative settings and under both sincere and sophisticated voting. In addition, we show how sincere and sophisticated voting processes can be viewed as mirror images of one another — embodying respectively, “dmemory” and “foresight.” We also show how to develop the idea of a “sophisticated agenda,” one in which the choice of what alternatives to propose is itself a matter of strategic calculation. 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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Sullivan John L. Borgida Eugene Jackson Melinda S. Riedel Eric Oxendine Alina R. 《Political Behavior》2002,24(1):55-84
In this study we examine responses to the recent expansion of information technology in two rural Minnesota towns. One of these towns took a cooperative approach to technology access, developing a community electronic network, while the other town relied on a more individualistic, entrepreneurial model. The present study examines citizens' attitudes concerning social, political, and technological issues in these two communities, with the goal of uncovering what kinds of attitudes and resources citizens need to have in order to help support and sustain a community electronic network. Structural equation modeling is used to specify the relationships among individuals' economic, political, and social resources, technology ownership and use, and awareness of and support for the community network. Drawing on a theory of social capital, we consider the relative importance of privately- oriented social engagement versus publicly- oriented political engagement in relation to collective outcomes. Our analysis shows that in the town with the broadly- based community electronic network, individuals' political as well as economic resources are linked to knowledge and use of computer resources, whereas in the comparison community, economic stratification alone drives computer access. The implications of these findings for issues of equity, access to technology, and the development of strong community ties are discussed. 相似文献
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Nicholas Buttle 《政治学》1997,17(3):147-152
In this article I defend a broadly Rawlsian interpretation of citizenship which combines both liberal and republican themes to provide an account of citizenship which is more appropriate for modern democracies than alternative interpretations, such as that offered by communitarian critics of political liberalism. Liberal republicanism, I argue, gives a convincing interpretation of the nature and value of citizenship and provides the basis for a radical political agenda. 相似文献
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Traditionally, toolmark test exemplars are produced by applying a tool's working surface to a piece of soft metal such as lead. Soft, pliable metals are primarily used for this purpose because they will replicate the microscopic grooves present on a tool's working surface without damaging the tool. In this paper the authors present an alternative material for the preparation of test toolmarks. Jewelry modeling or carving waxes are utilized in this study. These waxes are designed for the jewelry modeling industry to create very fine, highly detailed wax models of jewelry pieces that will be cast in various metals utilizing the lost wax casting method. Jeweler's waxes have been found to be ideal for preparing test toolmarks from exemplar tools. The test tool's working surface is applied to a piece of the appropriate wax in a manner consistent with the tool's design. The replicas obtained are exact, highly detailed, 1:1, negative impressions of the exemplar tools working surface, have a long shelf-life, and are suitable for use in toolmark examination and comparison cases. 相似文献
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