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91.
The performance of the polymorphic marker systems group-specific component (GC), phosphoglucomutase-1 (PGM), alpha-2-HS-glycoprotein (A2HS), haptoglobin (Hp), and erythrocyte acid phosphatase (EAP) was evaluated on control bloodstains. The major factors considered were: sensitivity of the test system; stability of the marker; laboratory economics of each test; and distinguishing power (Dp) of the system. GC was considered to be the most suitable marker for routine screening because of its high stability and Dp, and the sensitivity of the immunoblotting detection method. PGM and A2HS were the next most valuable markers followed by Hp. EAP could only be considered useful when large amounts of relatively fresh bloodstain were available.  相似文献   
92.
Hopelessness is implicated in multiple psychological disorders. Little is known, however, about the trajectory of hopelessness during adolescence or how emergent future orientation may influence its trajectory. Parallel process latent growth curve modelling tested whether (i) trajectories of future orientation and hopelessness and (ii) within-individual change in future orientation and hopelessness were related. The study was comprised of 472 adolescents [52% female, 47% Caucasian, 47% received free lunch] recruited at ages 12–13 who completed measures of future orientation and hopelessness at five annual assessments. The results indicate that a general decline in hopelessness across adolescence occurs quicker for those experiencing faster development of future orientation, when controlling for age, sex, low socio-economic status in addition to stressful life events in childhood and adolescence. Stressful childhood life events were associated with worse future orientation at baseline and negative life events experienced during adolescence were associated with both an increase in the trajectory of hopelessness as well as a decrease in the trajectory of future orientation. This study provides compelling evidence that the development of future orientation during adolescence is associated with a faster decline in hopelessness.  相似文献   
93.
Thomas  Diana W.  Thomas  Michael D. 《Public Choice》2020,182(3-4):443-457

The Olsonian distinction between roving and stationary bandits outlines the rationale behind the transition from anarchy to the emergence of the predatory state. This two-bandit model may, however, be expanded to include more bandit types. In the case of Viking Age England, local English kings were unable to monopolize violence and defend their realms against competing Viking raiders. As the Vikings’ time horizon grew, so did the accumulated value of more formal taxation, and bandit types evolved in four steps. The first step is the Olsonian roving bandit, who executed Viking hit-and-run attacks and plunders during the second half of the tenth century. The second step is the gafol bandit; gafol is payment for leaving, paid to, among others, Swein Forkbeard. The third step is the heregeld bandit; heregeld is a tax to support an army for hire; most notably Thorkell the Tall’s. The fourth step is the Olsonian stationary bandit, i.e. the strongest military leader among the Vikings, Cnut the Great, settled down as the new king. Overall, the Olsonian two-bandit model can be expanded to a four-bandit staircase model, in which the new gafol and heregeld bandit types explain the steps from anarchy and short-run raiding to long-run formal taxation in a predatory state.

  相似文献   
94.
This paper examines the power to prorogue (or suspend) Parliament following the 2019 prorogation controversy in the UK. We outline the legal basis of prerogative-based prorogation, survey its uses in the UK and other Westminster systems, and compare it with equivalent rules in other European parliamentary democracies. The comparative perspective highlights the outlier status of the UK among comparable European democracies. In the UK, the absence of explicit legal limits on the use of prorogation gives the executive exceptional scope to employ the power for political purposes to sidestep Parliament. We conclude by discussing the implications of these findings for current discussions about the desirability of reforming the UK’s prorogation rules and placing express legal limits on the executive’s power.  相似文献   
95.
96.
The article reviews the state of research on public-private partnerships (PPP) which, following a development in the Anglo-Saxon countries, in the past few years have been introduced as a policy tool in Germany as well. Based on a short conceptual and historical introduction, recent political science publications as well as contributions from economic, legal, and administrative scientists are systematized and critically assessed. This also includes a review of selected publications on PPP experiences in Britain. Finally, the paper discusses relatively neglected research issues, including methodological deficits as well as problems of input legitimacy.  相似文献   
97.
98.
Baumgartner and Jones (1993) showed how radically new policies emerge on government agendas as a consequence of exogenous shocks to policy subsystems displacing privileged interests. But how do these policies evolve post-punctuation? In this paper, we present three different models of policy change. Policies may revert to the old status quo if displaced interests re-assert themselves, or they may be “locked-in” by new interests now reaping the benefits. Alternatively, they may incrementally change as lawmakers “learn” how to better meet target population needs, particularly by witnessing how other jurisdictions address similar problems. We test these models with data on change in state charter schools laws over time. We find that whether old status quos are overthrow, and the fate of charter policies when they are enacted, is influenced more by competing political interests, especially interest groups, than elite and public perceptions of broad systemic crises. Yet, we also find that changing demands on the state and learning from the successes and failures of neighboring states also play significant roles.  相似文献   
99.
Thomas Jensen 《Public Choice》2009,141(1-2):213-232
Theories from psychology suggest that voters’ perceptions of political positions depend on their non-policy related attitudes towards the candidates. A voter who likes (dislikes) a candidate will perceive the candidate’s position as closer to (further from) his own than it really is. This is called projection. If voters’ perceptions are not counterfactual and voting is based on perceived policy positions then projection gives generally liked candidates an incentive to be ambiguous. In this paper we extend the standard Downsian model in order to investigate under what conditions this incentive survives in the strategic setting of electoral competition.  相似文献   
100.
A heated debate developed in South Africa as to the meaning of ‘deliberative democracy’. This debate is fanned by the claims of ‘traditional leaders’ that their ways of village-level deliberation and consensus-oriented decision-making are not only a superior process for the African continent as it evolves from pre-colonial tradition, but that it represents a form of democracy that is more authentic than the Western version. Proponents suggest that traditional ways of deliberation are making a come-back because imported Western models of democracy that focus on the state and state institutions miss the fact that in African societies state institutions are often seen as illegitimate or simply absent from people's daily lives. In other words, traditional leadership structures are more appropriate to African contexts than their Western rivals. Critics suggest that traditional leaders, far from being authentic democrats, are power-hungry patriarchs and authoritarians attempting to both re-invent their political, social and economic power (frequently acquired under colonial and apartheid rule) and re-assert their control over local-level resources at the expense of the larger community. In this view, the concept of deliberative democracy is being misused as a legitimating device for a politics of patriarchy and hierarchy, which is the opposite of the meaning of the term in the European and US sense. This article attempts to contextualise this debate and show how the efforts by traditional leaders to capture an intermediary position between rural populations and the state is fraught with conflicts and contradictions when it comes to forming a democratic state and society in post-apartheid South Africa.  相似文献   
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