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As a typical form of geographical phenomena, spatial flow events have been widely studied in contexts like migration, daily commuting, and information exchange through telecommunication. Studying the spatial pattern of flow data serves to reveal essential information about the underlying process generating the phenomena. Most methods of global clustering pattern detection and local clusters detection analysis are focused on single‐location spatial events or fail to preserve the integrity of spatial flow events. In this research we introduce a new spatial statistical approach of detecting clustering (clusters) of flow data that extends the classical local K‐function, while maintaining the integrity of flow data. Through the appropriate measurement of spatial proximity relationships between entire flows, the new method successfully upgrades the classical hot spot detection method to the stage of “hot flow” detection. Several specific aspects of the method are discussed to provide evidence of its robustness and expandability, such as the multiscale issue and relative importance control, using a real data set of vehicle theft and recovery location pairs in Charlotte, NC. 相似文献
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Claude Rosental 《Revue de synthèse / Centre international de synthèse》1998,119(4):575-602
Starting from an historical case study, this article addresses the general issue of the development of a social history of mathematics and logic. It aims at giving an account of certain features of recent history of fuzzy logic. For this purpose, it develops an approach based on a sociology of methods of demonstration and on the material analysis of logical activity, in particular of writing and reading activities. The formation of a social history of forms of demonstration is outlined. 相似文献
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Municipal boundaries shape the influence of local government on patterns of development and disparities. Based on a largely qualitative assessment of initiatives to change municipal boundaries of Arab localities in Israel between the 1960s and 2001, we aim to demonstrate the tension between geographical‐administrative considerations and political, particularly geopolitical, issues at two levels: Arab claims and central government decisions. We emphasize that municipal boundary conflicts provide broader insights on societal transformations and dilemmas, as well as influencing them. Growing activism of Arabs and trends of political decentralization led not only to class‐based demands, but also to ethno‐national‐based demands. In addition to development needs with an emphasis on equality, claims of Arab municipalities also reflect aspirations to reverse consequences of the 1948 war and to redefine the Jewish essence of the state. A major dilemma among Arabs is whether to emphasize geographic‐administrative justifications or to explicitly take the ethno‐national path. Among central government decision‐makers, an explicitly political discourse has apparently given way to a professional one, which faces dilemmas of incorporating unique political‐cultural attributes of Arabs in professional assessments, and balancing them with concerns of security and state identity. Whereas professional jargon is not value free and can mask political agendas, dialogues based on a professional jargon could lead to solutions in otherwise dead‐end political disputes, although such dialogues could gain momentum only if showing results. 相似文献
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Katy Gardner 《Development and change》2024,55(1):76-96
Based on qualitative research on marital problems in Dhaka, this article uses the term ‘intimate extractions’ as a lens to explain the relationship between escalating levels of demand dowry and neoliberal development in Bangladesh. Evidence from across Bangladesh shows that demands for cash made by husbands, accompanied by threats of violence or divorce, are on the rise. Building on gendered theories of contemporary capitalist development and feminist analysis of microcredit, the article argues that demand dowry should be understood within the current context of rapid economic development in Bangladesh. High levels of precarity, lack of state welfare and the need for cash for businesses, labour migration, education and healthcare mean that people from all social classes are in perpetual need of money. Marriage problems and the practice of demand dowry present opportunities for husbands to extract money from wives and their families. Embedded in the intimate relationship of marriage, demand dowry can therefore be understood as a ‘conversion’, a process in which intimate relationships are converted into projects of capital accumulation, thus becoming an ‘intimate extraction’. 相似文献
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Heritage routes and itineraries are mechanisms being used towards tourism needs and objectives. This paper defines these routes, reviews their context, and considers some examples in Europe. It looks at the 'why' and 'how' of heritage routes being established, and shows the inputs that tourism causes and needs. The particular dimensions to routes and what they bring and require are discussed. The associated demand of networks and networking is discussed and the potential beneficial aspects are described. The especial capacity of itineraries to bring about cross-boundary dialogue and interaction are highlighted and the wider potential of this feature for global society is alluded to. The need is suggested for more research into the use, outcomes and effects of routes. 相似文献