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991.
992.
Recent research has characterized the procurement of lithic raw materials for flaked stone technology as embedded in food procurement activities, and constrained by logistical factors such as mass, time, and energy. Many have assumed that these variables reflect the need for humans to both move themselves to resources, and carry materials with them. This paper explores the implication of these ideas through the development of particular research project in the Maritime Peninsula, in the Northeast of North America. Through this research process, I explore the complex interplay among raw materials, bulk procurement, water transportation, and regional patterning of archaeological lithic assemblages. I initially consider the role of embedded procurement as a structuring mechanism for the relationship between lithic raw-material diversity and catchment, but through a exploration of intersite and inter-feature variability, I consider the role of bulk procurement in this patterning. I conclude that canoes may significantly influence hunter–gatherer lithic procurement, in terms of the extraction of resources, and their reduction and use.  相似文献   
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994.
Frankincense burners found in al‐Shihr’s excavations in Yemen, a frankincense harbour during the Islamic period, represent a rare corpus of this type, which is an indication of both specific use and goods from South Arabia. Although associated with the pre‐Islamic South Arabian kingdoms, the frankincense burner evolved throughout the Islamic period. This is proved by the long chronological sequence of the al‐Shihr site (780–1996). Texts quoting the presence of frankincense, its use and its trade in al‐Shihr are cited in this article to support the reputation of this harbour‐town, which is part of the maritime trade networks of medieval Islam. The aim of this article is to create a renewal of interest in future archaeological research about this object, which is so often neglected in spite of its importance as a testimony of the customs and exchanges that are deeply rooted in Arabian civilisation.  相似文献   
995.
Gender and mobility: new approaches for informing sustainability   总被引:2,自引:0,他引:2  
Feminists have long known that gender and mobility are inseparable, influencing each other in profound and often subtle ways. Tackling complex societal problems, such as sustainability, will require improved understandings of the relationships between gender and mobility. In this essay I propose new approaches to the study of mobility and gender that will provide the knowledge base needed to inform policies on sustainable mobility. Early in the essay I survey the large literature on gender and mobility, teasing out what I see as two disparate strands of thinking that have remained badly disconnected from each other. One of these strands has informed understandings of how mobility shapes gender, while the other has examined how gender shapes mobility. Work on how mobility shapes gender has emphasized gender, to the neglect of mobility, whereas research on how gender shapes mobility has dealt with mobility in great detail and paid much less attention to gender. From this overview of the literature, I identify knowledge gaps that must be bridged if feminist research on gender and mobility is to assist in charting paths to sustainable mobility. I argue for the need to shift the research agenda so that future research will synthesize these two strands of thinking along three lines: (1) across ways of thinking about gender and mobility, (2) across quantitative and qualitative approaches, and (3) across places. In the final part of the essay I suggest how to achieve this synthesis by making geographic, social and cultural context central to our analyses.  相似文献   
996.
A collection of 1825 vertebrae belonging to 105 individuals from several Argaric Culture sites (Bronze Age, SE of Spain) were studied. Several pathologies that could provide information about activity patterns were analysed, including spondylolysis, compression fractures and Schmorl's nodes. Spondylolysis appears exclusively in men. Compression fractures seem to be more related to age (osteoporosis) and are more frequent in women, but without statistical significance. Schmorl's nodes affect a large number of the individuals studied, with a slight predominance in men; there are no differences by age. The results obtained were compared with the available archaeological and anthropological information, which shows a clear division of activities by sex in the Argaric population. The validity of studying these pathologies as activity patterns is discussed. Copyright © 2008 John Wiley & Sons, Ltd.  相似文献   
997.
Stable nitrogen isotopes have been used to reconstruct infant feeding practices as nursing infants have elevated δ15N ratios compared with their mothers. However, infancy is also a time of rapid growth, which may alter nitrogen isotope diet‐to‐tissue spacing. Several studies have documented a decrease in δ15N during growth in tissues with relatively fast accretion rates. This study investigates the effect that the growth of long bones, via collagen accretion, has on δ15N ratios. Long bones from individuals aged seven to nineteen years were obtained from a protohistoric ossuary in Ontario, Canada. Analysis of juveniles and adolescents permitted the examination of growth in a group who were not also nursing. It is concluded that a nitrogen isotope growth effect is not detectable in bone collagen from juveniles and adolescents, because: (1) δ15N ratios are not significantly different among the epiphyses, metaphyses and diaphysis of a growing long bone; (2) δ15N ratios are not significantly different between faster‐growing versus slower‐growing metaphyses; and (3) δ15N ratios are not significantly different between bones (or areas of a bone) that are still undergoing growth, versus bones that have ceased growing. The relatively slow speed of collagen accretion may explain why a growth effect is not manifested. Ultimately this research lends support to the use of nitrogen isotopes from bone collagen for infant feeding reconstructions. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
998.
Community of Practice (CoP) is a relatively new concept in the Middle East and North Africa. The concept has been used for a number of years in the business sector; however, the use of CoPs in the health sector has not been as widespread. The aim of this study is to provide insights into the status of CoPs in the health sector and the knowledge sharing practices that take place among members of such CoPs in Kuwait. Ninety‐eight questionnaires were distributed among medical practitioners. Results showed that the majority of members perceived the CoP as a source of increasing professional knowledge. Respondents focused mainly on the COPs fostering social interactions at the workplace or during task‐oriented activities. They mostly discussed specific problems and immediate concerns. The desire to learn and the desire to help others were the main motivators for doctors to share their knowledge. Lack of time and lack of technology and knowledge transfer mechanisms were reported as the primary obstacles to sharing knowledge. Nearly 65 percent of the CoP members responding to the survey stated that they did not receive any financial support from their management. In recent years the role of communities in learning and knowledge sharing has attracted much attention among those interested in knowledge as a situated practice. The concept of Communities of Practice (CoP) was originally developed by Lave and Wenger (1991 ), who suggested that learning took place in social relationships rather than the simple acquisition of knowledge. Lave and Wenger's observations have formed the basis of the “situated learning theory,” which describes that learning takes place in a setting functionally identical to a space where the knowledge is applied ( Lave & Wenger, 1991 ). The CoP concept has been used in the business sector for over 20 years, but the use of CoPs in the health sector has been recent ( Li et al., 2009 ). In addition, results of two studies, conducted by Traboulsi (2002 ) and Johnson and Kalidi (2005 ), revealed that the CoP is a relatively new phenomenon in the Middle East and North Africa. This article aims to provide insights into the status of CoPs in the health sector and their knowledge‐sharing practices in Kuwait.  相似文献   
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1000.
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