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The optical and morphological properties of resveratrol were investigated. This nontoxic fluorescent natural material, emitting in the visible blue light, was used as an optical marker, enabling the enhancement of the image contrast coming from relief pictures marked on challenging surfaces. By applying appropriated imaging softwares, this marker was verified to be very useful in the latent fingerprint recognition deposited on different wood surface types, mainly those with high level of roughness, where conventional forensic materials do not allow effective fingerprint image visualization.  相似文献   
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The 1990s ended equivocally in Latin America. What has gone wrong? Is economic failure the cause or the consequence of the democratic decay and the erosion of governance throughout the region? The review essay revisits the debate on the intricate links between politics and economics in the second stage of reform. Moving beyond standard typologies of regime type, it explores the interactions between the quality of democratic governance and the performance of economic policy under democratic auspices, in particular its credibility. It is now amply recognized that reforms have been hindered by inefficient unreliable and unaccountable government institutions. Furthermore, the manner in which market reforms have been implemented has undermined governance and accountability. The importance of policy credibility has essentially been neglected as a pivotal condition for effective economic reform. Consequently, policymakers propose a new round of reforms, centring on strengthening the institutions of governance and modifying the incentives shaping public policy. The essay argues that restoring the credibility of policy requires a fundamental redefinition of the state and reforming the methods of government and the styles of policymaking. The defining challenge of Latin American countries is to strengthen capacity to adequately implement policy and credibly commit to policy reform. Copyright © 2003 John Wiley & Sons, Ltd.  相似文献   
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This paper explores the institutionaldeterminants of economic growth in LatinAmerica by taking advantage of recentempirical research that employs subjectiveand objective measures to test for apossible “Northian” explanation that linksinstitutional quality and economic growth.We explore a simple framework that may helpbetter understand the policymakers’ choicesand persistence regarding inward-lookingpolicies that were pursued between the1930s and the 1980s by arguing that in theLatin American case Olson’s (1982) idea ofencompassing interest should be expanded tocover not only the economic stakes of powerholders, but in particular, their psychicincome which includes their politicalstakes, along the lines of recent work byRobinson (1997), Coyne (2002), andothers.  相似文献   
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非洲联盟面临的挑战   总被引:1,自引:0,他引:1  
非洲面临最重要的挑战就是如何避免并解决冲突,恢复和巩固和平。持久和平是非洲应对其他挑战的先决条件。非洲联盟的建立显示出非洲人民应对挑战的决心,其目标就是要消除贫困,维护和平,使非洲各国走上经济持续发展的道路。中国是最早向莫桑比克提供援助的国家之一,非洲国家视中国为伙伴和盟友,中非合作的前景广阔。  相似文献   
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An unprecedented number of Western women have recently joined the Islamic State of Iraq and Syria (ISIS). The group has envisaged strictly non-combat roles for them, but violence is an essential part of their embraced ideology and several signs suggest that they could claim a more militant role. Their marginalization, however, is essential for the preservation of ISIS's power system and it is consequently unlikely that it would accommodate such aspiration, at least in the areas of the proclaimed caliphate. It could be different in the West, where women returning from conflict areas or those, even more numerous, anxious to join but unable to travel, could engage in violent acts.  相似文献   
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