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51.
Abstract. We analyze an urban spatial model to examine the possible link between urban land use and obesity. Households maximize utility defined over housing, weight, and food subject to a fixed time budget allocated to commuting, calorie expenditure, and work. Our model explains the observed correspondence between high obesity rates and low development densities, but implies that these are determined endogenously in a spatial market equilibrium. We study the sorting of residents by attributes such as income, initial weight, and weight preferences, and examine the impacts on weight and density of urban design modifications that lower the costs of calorie expenditure.  相似文献   
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This article examines a tension at the heart of national leadership in Solomon Islands today: a conviction that national leaders need to spend more time in rural environments to better represent rural interests, needs and values, while having to be in town to access the individuals and organizations that, essentially, make them national leaders in the first place. Drawing on fourteen months of ethnographic fieldwork in urban Honiara and the rural Lau Lagoon, Malaita, we are especially interested in how this tension shapes rural perceptions of the legitimacy of chiefs as national leaders. Given that development projects can only be negotiated in Honiara, where the required state institutions, international (N)GOs and major businesses are based, rural residents feel compelled to send their most important village leaders, especially clan chiefs, to town. However, the longer these leaders are away from their homes, the more they seem distracted by urban ‘luxuries’ and the less they appear committed to their rural homes. In particular, villagers complain about their chiefs' contributions to exchange relations. Villages, thus, find themselves in a double‐bind that exaggerates a broader ‘crisis of leadership’ alongside an urban‐rural divide which challenges the promise of chiefly leadership as solution to antipolitical sentiments and a centralized state.  相似文献   
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This paper will consider a number of issues. Section 1 will introduce the paper, establishing why reliable internationally comparable statistics on cultural participation are needed. Section 2 will address the major and various difficulties that arise in comparing national surveys, both over time and to each other. Section 3 will consider the problems that persist even with cross-national surveys for comparative purposes. Section 5 will conclude the paper with some policy recommendations.  相似文献   
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This article considers the legacy of 1970s revolutionary thought and political action within Argentine cultural production. Liliana Heker’s 1996 novel El fin de la historia is a fictional depiction of MontoneraLucy’ Carazo, who was taken as a political prisoner, fell in love with and seduced her captor, and went on to collaborate with the military regime. Similar stories continue to arise and generate a great deal of debate in present-day Argentina, at the same time that Heker's novel itself continues to elicit controversial critical and cultural responses. This close reading of the novel thus situates itself within present-day debates regarding the ethics and politics of 1970s armed struggle as well as ongoing debates concerning individuals who abjure or betray their commitment to 1970s revolutionary causes. The analysis focuses on seduction and sexuality as a means of leading the novel’s protagonist astray from the cultural topoi of revolutionary martyrdom and heroism.  相似文献   
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Graphical inference, a process refined by Buja et al., can be a useful tool for geographers as it provides a visual and spatial method to test null hypotheses. The core idea is to generate sample datasets from a null hypothesis to visually compare with the actual dataset. The comparison is performed from a line‐up of graphs where a single graph of the actual data is hidden among multiple graphs of sample data. If the real data is discernible, the null hypothesis can be rejected. Here, we illustrate the utility of graphical inference using examples from climatology, biogeography, and health geography. The examples include inferences about location of the mean, change across space and time, and clustering. We show that graphical inference is a useful technique to answer a broad range of common questions in geographical datasets. This approach is needed to avoid the common pitfalls of “straw man” hypotheses and “p‐hacking” as datasets become increasingly larger and more complex.  相似文献   
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ABSTRACT

The ability to maintain human brain explants in tissue culture was a critical step in the use of these cells for the study of central nervous system disorders. Ross G. Harrison (1870–1959) was the first to successfully maintain frog medullary tissue in culture in 1907, but it took another 38 years before successful culture of human brain tissue was accomplished. One of the pioneers in this achievement was Mary Jane Hogue (1883–1962). Hogue was born into a Quaker family in 1883 in West Chester, Pennsylvania, and received her undergraduate degree from Goucher College in Baltimore, Maryland. Research with the developmental biologist Theodor Boveri (1862–1915) in Würzburg, Germany, resulted in her Ph.D. (1909). Hogue transitioned from studying protozoa to the culture of human brain tissue in the 1940s and 1950s, when she was one of the first to culture cells from human fetal, infant, and adult brain explants. We review Hogue’s pioneering contributions to the study of human brain cells in culture, her putative identification of progenitor neuroblast and/or glioblast cells, and her use of the cultures to study the cytopathogenic effects of poliovirus. We also put Hogue’s work in perspective by discussing how other women pioneers in tissue culture influenced Hogue and her research.  相似文献   
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