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811.
Scholars often seek to understand which individuals are most responsive to the change in some treatment. Such work inevitably faces issues of identification. When the dependent variable is binary, the assumption that the largest effect occurs where p = 0.5 is also encountered. I apply Manski’s [(1995). Identification problems in the social sciences. Cambridge: Harvard University Press] non-parametric Bounds approach, which relaxes the functional form and distributional assumptions found in traditional models, in an attempt to resolve the long standing debate on which types of individuals are most affected by changes in registration laws. Under the standard assumption that treats the selection of registration laws as exogenous, the results revise the current understanding. By exploring the power of various behavioral assumptions, new insights into the study of policy changes emerge, calling into question some of the assumptions that are standard in the literature.
Michael J. HanmerEmail:
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812.
This study investigates media priming effects in the context of a Summit meeting of European Union (EU) leaders. It differs in four ways from most previous non-experimental priming studies: (1) it provides survey data accompanied by a content analysis of the news, (2) it compares priming effects on evaluations of a number of political leaders, who differed in their visibility in the news, (3) it involves an issue with low salience, and (4) it studies priming effects in the context of a European Parliamentary democracy. The study involves a two-wave panel study (before and after the Summit) on a representative sample of 817 Dutch adults, and a content analysis of the newspaper and television news in the 8 weeks leading up to the Summit meeting. The study shows that media priming effects occur only for the politicians who appeared visible in the news in connection with the issue. The media priming effects were not significantly moderated by political attentiveness or by political knowledge. We also explore the aggregate level consequences of priming for the popularity of leaders, and demonstrate that, as a result of media priming, two politicians became more popular, despite having received a bad press.
Wouter van der BrugEmail:
  相似文献   
813.
Biotechnological enhancement of human capabilities reveals a characteristically modern stance toward nature: Human nature, as given, is an impediment to be overcome on the way to full human freedom. As a form of metaphysical partisanship, the biotech enterprise seems to further the political intention of Thomas Hobbes to nullify human diversity. Commerce in biotech enhancements, and the individual liberty such commerce instantiates, is likely to have the ironic effect of psychic homogenization.
Matthew B. CrawfordEmail:
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Techniques for conducting elections developed since 1800 have raised a question about the soundness of the American framers’ majoritarianism. John Stuart Mill notably argued that the framers’ desire to reward merit, as opposed to party loyalty, would be better served by a system of proportional representation that gave deserving minorities a voice. This article considers the likelihood that a system such as Mill proposed would have the results he hoped for; it concludes that such a system is more likely to worsen problems with the existing system of representation than to solve them.  相似文献   
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The ethnic minorities of Southeast Asia’s uplands, including those of Vietnam, tend to be portrayed as excluded from national society and locked into poverty, environmental degradation and positions of subjugation. Recent debates about Southeast Asian uplands-lowlands relations have questioned this discourse by highlighting the diversity of experiences, the agency of ethnic minority groups, and uplanders’ strategies of state evasion. This article finds that the integration of the uplands into the Vietnamese polity should be understood as an ongoing struggle between nation-building and state expansion characterised by grand visions on the one hand, and incomplete policy implementation and uplanders’ ambiguous stance towards integration on the other.  相似文献   
820.
Acid scavengers are frequently used as stabilizer compounds in a variety of applications. When used to stabilize volatile compounds such as nerve agents, the lower volatility and higher stability of acid scavengers make them more persistent in a post-event forensic setting. Compound-specific isotope analysis of carbon, nitrogen, and hydrogen in three acid-scavenging compounds (N,N-diethylaniline, tributylamine, and triethylamine) were used as a tool for distinguishing between different samples. Combined analysis of multiple isotopes improved sample resolution, for instance differentiation between triethylamine samples improved from 80% based on carbon alone to 96% when combining with additional isotope data. The compound-specific methods developed here can be applied to instances where these compounds are not pure, such as when mixed with an agent or when found as a residue. Effective sample matching can be crucial for linking compounds at multiple event sites or linking a supply inventory to an event.  相似文献   
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