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991.
James M. Bayman 《Journal of Archaeological Research》1999,7(3):249-299
Debates concerning sociopolitical organization in the North American Southwest are clarified and confounded by the conclusion
that craft specialization was not always a sufficient condition of complexity in the region. Understanding the relationship
between varying dimensions of craft specialization (e.g., context, scale, and intensity) and sociopolitical organization in
the region requires us to examine a variety of social institutions (e.g., leadership, gender, and ethnicity) that potentially
generated differentiated economies. New research on middle-range societies in the North American Southwest and elsewhere in
the world should focus on identifying and interpreting the archaeological signatures of specific social institutions and their
linkages to craft economies. 相似文献
992.
In this paper we develop a Bayesian prior motivated by cross-sectional spatial autoregressive models for use in time-series vector autoregressive forecasting involving spatial variables. We compare forecast accuracy of the proposed spatial prior to that from a vector autoregressive model relying on the Minnesota prior and find a significant improvement. In addition to a spatially motivated prior variance as in LeSage and Pan (1995) we develop a set of prior means based on spatial contiguity. A Theil-Goldberger estimator may be used for the proposed model making it easy to implement. 相似文献
993.
James Gelvin 《Nations & Nationalism》1999,5(1):71-89
Abstract. Because many area experts studying the Arab Middle East commonly credit assumptions about nationalism that have, for the most part, been abandoned by their colleagues working in other parts of the globe, they assert that nationalist sentiment in the region has declined, either as a result of a series of political shocks or as the result of competition from other ideologies (such as Islamism). However, popular forms of nationalism not only have strong roots in the region, they have been continually reinforced over time. As a result, the current popular support for Islamism cannot be taken as a sign that nationalist sentiments are on the decline, particularly in light of the fact that Islamic movements share with nationalism a number of significant attributes. 相似文献
994.
The long bones of the human upper limb usually show lateral asymmetries of length. This pattern can be attributed either to the mechanical consequences of handedness bias or to genetic or hormonal factors acting directly on longitudinal bone growth. Length data was obtained from the long bones of the upper limbs of a large skeletal assemblage from Wharram Percy, Yorkshire (England), predominantly deriving from the 11th-16th centuries A.D. The Wharram Percy adult skeletons had a population distribution of lateral asymmetries of length in the humerus and in the humerus-plus-radius (a proxy arm length index) which closely parallels the pattern of behavioural handedness found in modern populations. This pattern was developing in the skeletons from the infant and juvenile age ranges, but was absent in the neonates (of whom 12 out of 14 had longer left humeri). We argue that this supports the environmental hypothesis that the ontogeny of long bone length asymmetry is consequent to the earlier development of lateral bias in mechanical loading of the upper limbs. 相似文献
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James P. LeSage 《Geographical analysis》2000,32(1):19-35
A Gibbs sampling (Markov chain Monte Carlo) method for estimating spatial autoregressive limited dependent variable models is presented. The method can accommodate data sets containing spatial outliers and general forms of non‐constant variance. It is argued that there are several advantages to the method proposed here relative to that proposed and illustrated in McMillen (1992) for spatial probit models. 相似文献
1000.
This article considers how environmental problematics are produced and interpreted, using case material from West Africa’s humid forest zone. Examing the experiences of several countries over the long term, it is possible to identify a deforestation discourse produced through national and international institutions. This represents forest and social history in particular ways that structure forest conservation but which obscure the experience and knowledge of resource users. Using fine‐grained ethnography to explore how such discourse is experienced and interpreted in a particular locale, the article uncovers problems with ‘discourse’ perspectives which produce analytical dichotomies which confront state and villager, and scientific and ‘local’ knowledges. The authors explore the day‐to‐day encounters between villagers and administrators, and the social and historical experiences which condition these. Instances where the deforestation discourse becomes juxtaposed with villagers’ alternative ideas about landscape history prove relatively few and insignificant, while the powerful material effects of the discourse tend to be interpreted locally within other frames. These findings present departures from the ways relations between citizen sciences and expert institutions have been conceived in recent work on the sociology of science and public policy. 相似文献