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Developmental defects of enamel (DDE) are important markers of stress as they arise from the disruption of ameloblastic activity during enamel matrix secretion and mineralization. Defects on the crowns of the deciduous dentition provide insights into maternal–fetal health because they can emerge during intrauterine development as a result of gestational issues. The presence of previous defective enamel represents one of the most predisposing causes of caries development. Thus, circular caries on the deciduous dentition are considered an indicator of stress because of their ascertained relation with dental enamel defects. In bioarchaeological analysis, these lesions allow us to deepen the question of maternal–fetal health issues in the ancient period. Here, we present evidence of defects-related early childhood caries in three infants from a medieval cemetery in northern Italy. The findings in the dentitions of the three subjects were investigated with a multi-analytical approach, including macroscopic examination, microscopic observation, cone-beam computed tomography (CBCT), scanning electron microscopy (SEM), and histological sections. In the specimens analyzed, the lesions observed in the dentitions appeared to have arisen during the fetal period and then protracted in the postnatal life, suggesting the implication of in utero environment and maternal health in the etiology of defects.  相似文献   
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Achieving the Millennium Development Goal of halving poverty will require simultaneous action on two separate fronts: helping poor people escape from poverty, and stemming the flow of people into poverty. This article examines forty Peruvian communities, and finds that descents into poverty have occurred alongside escapes in every one of them. Escape and descent are asymmetric in terms of reasons: while one set of reasons is responsible for escapes from poverty, another and different set of reasons is associated with descent. Making progress in poverty reduction will require measures to accelerate escapes whilst at the same time slowing down descents. The article looks at the different policies which will be required to serve these two separate purposes.  相似文献   
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We explore the interrelationships between the concepts of fictitious commodities, fictitious capital and accumulation by dispossession. We do so through a detailed examination of the dynamics of land reclamation in the Kingdom of Bahrain during the years 2001–2014. Particularly, we dissect in‐depth the ensemble of social relations and chain of events involved in two specific real estate projects, Norana and Bahrain Financial Harbour, that have come to symbolize Bahrain's neoliberal era. Reclamation was a unique process in which land was explicitly produced as a commodity for market purposes. Primary material of land deeds, company registration documents, and news articles were used to map out the social relations across the state–finance–real estate nexus. We emphasize that our understanding of accumulation by dispossession involving land is greatly enhanced if we view it as a process of reconfiguring the ensemble of social relations using fictitious commodification and fictitious capital formation.  相似文献   
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The Uyuni salt flat (Salar de Uyuni) in Bolivia possesses the largest lithium deposit in the world. Over the past 40 years, this location has been commodified and radically transformed. This paper examines how a landscape, understood from its material attributes and qualities, shapes and is shaped by social relations unfolding in a process of commodification and mining expansion. Based on primary qualitative data, the paper explores two elements: (1) how the symbolic meaning of this landscape has changed over time for the surrounding indigenous communities; and (2) how the different materialities of the salt flat as landscape, as ulexite and as lithium allow understanding of the drivers of socio‐environmental change and conflict in this region. The paper argues that social relations and governance frameworks are interlinked with changing symbolic meanings and the different materialities of the Uyuni salt flat.  相似文献   
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