广东发展史略

1．地理区位 地理区位作为一个历史范畴,对社会发展有重要作用。广东地处祖国边陲,面对南海,背靠五岭,形成对内封闭、对外开放、相对独立地理单元。在交通梗阻不便的古代,中央王朝鞭长莫及,也没有把它像华北、江南、关中、四川那样作为经济区经营,以作为对外扩张基地。正由于此,广东古代战乱少,远不如北方,社会较安定,政治环境相对宽松,     

Well preserved non‐collagenous extracellular matrix proteins in ancient human bone and teeth

Ancient bones in a good preservation state, ascertained by microscopic techniques, conserve extracellular matrix proteins over thousands of years. With new techniques, intact extracellular matrix proteins from ancient bones and teeth are extracted and separated by one‐dimensional and two‐dimensional electrophoresis. Proteins were identified in Western blots by special antibodies against different human extracellular matrix (ECM) molecules of bone. We have confirmed different types of ECM human bone molecules such as osteonectin, osteopontin, and alkaline phosphatase with specific antibodies in human bone samples from different age groups. Additionally, we selected bone samples from different cultural time periods, such as the Middle Ages, the Bronze Age and the Late Pre‐Pottery Neolithic Phase (PPNB), and teeth from individuals from the Early Middle Ages and from the Late PPNB. The survival of intact extracellular matrix proteins in ancient bones and teeth dating from recent times to the Late PPNB, and reliable techniques to identify these proteins, present a great challenge to further research. A Match Set with PD‐Quest 7.2 shows that only 16% of protein spots in the teeth are also found in the bone of the same individual. In combination with the results of macro‐ and microscopic investigation, biochemical techniques will help us in obtaining a better understanding of bone and teeth in health and disease. Copyright © 2006 John Wiley & Sons, Ltd.     

Oral implications of labret use: a case from pre‐Columbian Chile

This paper examines the osteological evidence for a case of long‐term labret use in pre‐Columbian north Chile and the pathological conditions associated with it. The burials from the site of Solcor 3 (AD 400–900) included a complete skeleton associated with two quartz labrets. Analysis of the skeleton of this adult male revealed wear and polish on the labial surface of both mandibular canines, indicating that the labrets were worn as a pair on either side of the midline of the lower lip. In addition to these abrasion facets, there were also areas of periosteal reaction in the alveolar bone of the canines. These patterns were analysed from the perspective of the clinical dentistry literature and compared to archaeological data. It is concluded that this individual's dental health was affected by wearing labrets, although not as seriously as might be expected based on contemporary medical reports. Copyright © 2003 John Wiley & Sons, Ltd.     

中国先秦时期热处理滑石器初探

热处理用于改善材料性能以及获取所需色泽,彰显了古人的智慧与技术.除石器工具的热处理之外,象征性器物的热处理也是旧石器时代末期以来的一项重要人类行为.滑石因硬度较软,很早被中国先民用作装饰品和礼仪器,但很少用作珠饰.青铜时代早期至西周时期,滑石珠饰大量出现,部分经过了热处理.与近东和南亚地区相比,热处理滑石珠饰在器型、功...     

Spatial Pricing Policies Reconsidered: Monopoly Performance and Location

This paper reexamines the welfare implications of three pricing regimes (mill, uniform, and discriminatory) for a monopoly. Assuming linear demand and constant marginal costs, I show that with the introduction of endogenous location choice, uniform delivered pricing may provide the highest social welfare when demands in different markets are sufficiently heterogeneous; whereas discriminatory pricing always dominates uniform pricing when demands in different markets are similar.     

REVIEW ESSAY

Rednecks, Eggheads and Blackfellas: a study of racial power and intimacy in Australia. By Gillian Cowlishaw Sydney: Allen and Unwin. 1999. Pp. xix + 352. Figures, Maps, Photos & Index $35     

Lebens‐Geschichte ‐ Wissenschafts‐Geschichte. Vom Nutzen der Biographie für Geschichtswissenschaft und Wissenschaftsgeschichte

Biography as a genre of historiography had been dismissed for some years, criticized for being conservative, resistant to theoretical approaches, and hostile to methodological innovations. But the predominance of a historiography devoted to structures, functions, and statistics has, however, led to a renewed interest in the human factor in history. This paper argues that the pluralism of methods and theories which has emerged thereafter reopened the case for an innovative biography, thus facilitating the convergence of general history and the history of science.