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A set of 104 independently dated archaeomagnetic directions was used to extend the U.S. Southwest reference curve back to 375 cal BC and to calculate isolated mean VGPs centered on 960 cal BC and 2390 cal BC. Prior to this study, most U.S. Southwest reference curves extended to only ca. AD 585. This study employed Sternberg’s moving window technique with variably sized windows, rather than fixed windows, to smooth the dataset into a continuous curve. The size of each averaging window was determined by the density of data captured by the window, such that each window had a minimum data density of 5.0 and a minimum window size of 50 years. This approach differs from previous studies in the U.S. Southwest, which have applied a uniformly sized averaging window to a dataset regardless of the temporal distribution of the data.  相似文献   

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This article draws upon ethnographic accounts of female potters’ movement and intermarriage into multi-ethnic Pueblo communities in the U.S. Southwest to illustrate how marriage networks created opportunities for innovation through the production, distribution, and consumption of boundary objects. These objects did not define boundaries but facilitated boundary crossing or bridging by potters. I argue that the concept of boundary objects is more useful than hybridity for understanding the processes of culture contact and material culture diffusion. Archaeological evidence for late twelfth through thirteenth century migrations from the Four Corners to the southern Colorado Plateau is used to make a case for a high degree of intermarriage and post-marital movement of women. Such patrilocality challenges normative views of post-marital residence, including those employed by early ceramic sociologists working in the same area of the Southwest and even at the same sites. The case that I discuss provides a contrast to other Southwest examples in which conformist transmission was more common, and helps to solve a paradox in explanations of the Southwest Pueblo Sprachbund. I conclude that the concept of boundary objects complements formal social network approaches in archaeology by bringing out the active role of objects in linking social actors.  相似文献   

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A Conditional Logit Approach to U.S. State-to-State Migration   总被引:2,自引:0,他引:2  
This paper uses a conditional logit approach to study interstate migration in the United States for each of eleven years, from 1986–1987 to 1996–1997. We test substantive hypotheses regarding migration in the United States and demonstrate the richness of the conditional logit approach in studies of place-to-place migration. We investigate migration responses to relative economic opportunities (unemployment rate, per capita income) and the associated costs of moving (distance between origin and destination and its square). We also investigate how noneconomic factors, such as amenities, affect migration between states through a state fixed effect. Finally, we study the magnitude of unmeasured costs associated with a particular migration. The conditional logit model also allows us to compute various trade-off and other values that are of interest in migration analysis.  相似文献   

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试论美国新宗教右翼   总被引:1,自引:1,他引:1  
王恩铭 《世界历史》2007,13(6):81-90
20世纪下半叶是美国新保守主义崛起和活跃于美国政坛的时期。当代美国新保守主义力量主要由新型保守派(Neo—cons)、新右翼(New Right)和新宗教右翼(New Religious Right)所组成。作为以福音派和基要主义派等宗教组织为主体的当代美国宗教右翼,针对美国日益严重的社会问题和急剧下滑的道德价值观,假借“电子牧师”和“超级教会”等方式,以犹太-基督教传统价值观为基准,动员和组织了数千万福音派和基要主义派教徒,掀起了一场规模相当可观的宗教右翼运动,为美国保守主义的复兴和重返政坛立了大功。探讨当代美国保守主义时,新宗教右翼是一个不可或缺的部分。  相似文献   

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美国宪法修正案第二条在所有的美国宪法条文中行文奇特,模糊不清,从而给解读带来世纪难题.在"持有和携带武器"的权利归属上,就存在截然对立的两种解读方式:"公共权利说"和"个人权利说".事实上,第二修正案和其他修正案一样,也是谈判、妥协和利益平衡的结果,主要表现在两个层面:首先,它是古典共和主义和激进民主主义的调和与共融;再者就是联邦党人和反联邦党人的相互调和与共融.  相似文献   

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