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331.
Despite two decades of democratisation and some recent liberalisation in North Africa, dictatorships linger around the world. New research on comparative authoritarianism questions personal rule and studies a range of dependent variables, such as why dictators sometimes provide public goods. This ‘analytic authoritarian’ literature emphasises collective governance and explores the institutional basis of policy control. Nigeria's military regimes between 1966 and 1998 provide examples of how military factions and subnational actors can impose transaction costs on authoritarian policy processes. These alternative centres of policy control limited the ability of dictators to unilaterally advance their policy preferences on questions relating to federalism and transition plans. The article concludes by linking this analysis to Nigeria's lingering legacies of authoritarianism and the institutional basis of its 1999 transition.  相似文献   
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ABSTRACT

Indigenous maize from Mexico has become crucial for a wave of contemporary agricultural development initiatives seeking to cultivate a ‘Green Revolution for Africa’. Plant breeders developing disease-resistant hybrid maize for Africa use cutting edge technologies like CRISPR-Cas9 to mine the genomes of maize collected in Mexico 75 years ago, during the Green Revolution’s earliest incarnation. Historicizing this transnational linkage, this paper argues that Green Revolution science appropriates indigenous maize through racial logics rooted in whiteness. In the 1940s, American scientists sent by the Rockefeller Foundation to improve Mexico’s agriculture negotiated their own racial subjectivity through their encounters with Mexico’s indigenous people. In the process, they constructed a racial hierarchy that equated whiteness with scientific superiority and indigeneity with underdevelopment. This racialization undergirded a maize program led by E.J. Wellhausen that collected and catalogued hundreds of varieties of Mexico’s maize – and then distributed them to American seed companies. Wellhausen’s seeds formed the genetic backbone for subsequent Green Revolution projects. The ‘white science’ he embodied expanded as the Revolution sought out nonwhite agriculture across the global South. Today, the Green Revolution’s racial logics are re-articulated along its geographical and technological frontier, as indigenous maize provides the seeds for the African Green Revolution.  相似文献   
334.
Commotio cordis secondary to a blunt blow to the chest wall can result in ventricular fibrillation and sudden death in children. While it is commonly reported in adolescents during sporting activities, it may result from non-accidental trauma especially in infants and younger children. We report a case of a 6-month-old baby boy who presented to the emergency department in cardiac arrest. The patient's hospital records, postmortem imaging, and the autopsy results were reviewed. External examination of the infant did not reveal any evidence of trauma. Postmortem imaging revealed multiple healing posterior rib fractures and a metaphyseal corner fracture, both considered fractures highly specific for physical abuse. The autopsy revealed a structurally normal heart with no microscopic abnormalities. The infant's father confessed to hitting the child on the chest after which the child became unresponsive. Given the constellation of postmortem imaging and autopsy findings in addition to the father's confession, the child's death was ruled as a homicide secondary to commotio cordis. Since there are no structural and microscopic abnormalities in the heart autopsy in cases of commotio cordis, timely on-scene investigation and a thorough investigation regarding the mechanism of injury are required to make this diagnosis. Early identification of non-accidental trauma is crucial and can prevent further abuse in other siblings.  相似文献   
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This article examines the importance of mobility in the historical and ongoing constitution of lesbian and gay subjectivities. While the state in the past frequently sought to restrict the movement of sexual dissidents across national borders, current developments in an array of jurisdictions suggest a more permissive attitude, particularly in the case of the 'unification' of same-sex couples. These legal and political developments are interrogated with respect to the construction of 'acceptable' homosexualities and, more broadly, in terms of cosmopolitan and communitarian visions of sexual citizenship.  相似文献   
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This presentation looks beyond the contemporary controversy over the use of race in drug courier profiling and examines the broad spectrum of rare relations affecting police operations. Racial controversy is not new to law enforcement, nor is it a recent phenomenon in American society. American police do not get enough credit for the enormous amount of positive daily interaction within minority communities. Police are pervasively present within minority communities around the clock successfully solving disputes, responding to calls for service, and addressing community concerns. It is against this backdrop that many in law enforcement are becoming increasingly frustrated by the perception, if not the reality of deteriorating race relations between police and minorities. One thing is certain: police cannot withdraw from racial conflict. Police will continue to operate within minority communities, regardless of the racial composition of either the community or the law enforcement agency. Therefore, officer and supervisory training should not only focus on how to avoid racial conflict, but also on how to ethically and legally perform in an environment where treatment of minorities is critically examined.  相似文献   
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