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31.
A review of the publications of Hans Creutzfeldt and Alfons Jakob pertaining to the concept which bears their name (CJD) reveals that they described a neuropathological syndrome and were opposed to its classi- fication as a neurological disease. The evidence on which Creutzfeldt and Jakob based their view is reevaluated, and studies by other workers are cited in which a range of environmental and genetic factors generated the CJ syndrome, challenging the proposition that CJD is a disease with a single cause..  相似文献   
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This research applies a task‐based approach to measure and interpret changes in the employment structure of the 168 largest U.S. cities in the period 1990–2009. As a result of technological change some tasks can be placed at distance, while others require proximity. We construct a measure of task connectivity to investigate which tasks are more likely to require proximity relative to others. Our results suggest that cities with higher shares of connected tasks experienced higher employment growth. This result is robust to a variety of other explanations including industry composition, routinization, and the complementarity between skills and cities.  相似文献   
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Soqotra Island, the remote border outpost of the Yemeni state in the Indian Ocean, is a community of mixed ethnic composition with a non‐Arabic mother tongue. It offers an ideal socio‐political context for the study of state–community relations in terms of polity formation as part of a political incorporation process. This focus provides a corrective to the still dominant segmentary society paradigm and its tribes‐driven state politics in the anthropological discourse on Yemen. Polity formation in Soqotra occurred through a series of acts of political incorporation by a succession of political regimes from the late nineteenth century to the present. The study of this process is pursued through a historical narrative of the state’s politics of administration. This narrative is aptly described as a mesography, as its analytical focus is on the meso‐level institutional web of four different political regimes with their distinctive modes of polity regimentation and their structuring effects on Soqotrans’ communal life.  相似文献   
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In the course of the Upper Paleolithic, antler debitage techniques seem to have followed a linear evolution. The earliest one, fracturing by cleaving, appeared during the Aurignacian and is considered by some specialists to be ineffective. According to them, it was not until the invention of the groove and splinter technique during the Gravettian that antler debitage became efficient. Nonetheless, during the Solutrean, fracturing once again became the most common technique, but by splitting. Based on a study of 102 Solutrean pressure tools and experimentations, we reach the conclusion that splitting is a very effective technique that can produce blanks with the same qualities as those made by the groove and splinter technique. The splitting technique was nonetheless excluded in previous studies. We explore the reasons for this and the particularities of the different antler debitage techniques evidenced in the Western Upper Paleolithic.  相似文献   
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In this paper, the authors introduce finds of crested hen from three post-medieval Ottoman Period (16th–17th century) sites in Hungary. All the remains were found in Buda, the former capital of Hungary. Two sites are located within the castle area, while the third lies south of the royal palace. Since the animal bone assemblages yielding the skulls of crested hen under study showed Ottoman Turkish influence and the castle of Buda was a high status area, it is likely that crested hen represents one of the newly introduced breeds of domestic animals that arrived to Hungary with people of Balkan origins.  相似文献   
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Based on a chronicle written and translated by the Otomi — an indian group living in Querétaro City to the east of the Mexican Bajio, this work intends to describe the way they conceived the Spanish Conquest in the mid‐XVIIth century. By recalling, interpreting and idealizing their past these indians elaborated a version that conveys a complex and hopeless search for autonomy and identity in a context of social decay and crisis. This text is also a rare manifestation of colonial indian literature. Its analysis discovers the way Indians could use writing, oral and written sources to create and express an original way of coping with the past, time and colonial society.  相似文献   
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