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While Java's culture has extended to other parts of Indonesia and mainland Southeast Asian countries (on Angkor under Jayavarman II, for example, and on the Chams) it exerted even stronger influence on a more distant country, Japan. The encounter pre-dated Indianisation and was between the Jomon population of Japan – a decentralised population living by hunting, fishing, and gathering – and wet-rice growing Javanese immigrants who had an advanced and much more centralised political organisation and sophisticated technology, art and culture. We need thus to adjust our ideas about the antiquity of Javaneseness and the length of time this civilisation has been in contact with other cultures.  相似文献   
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This article examines the economic processes and socio‐political institutions that shape women's involvement in community projects. Feminist materialism and postcolonial theory provide the framework to analyze these livelihood strategies as they are grounded in the material conditions of women's lives. The empirical study is based in a rural northern province of South Africa where colonialism and apartheid have contributed to extreme economic and social hardships. Fieldwork was conducted in Limpopo to analyze how community projects contribute to livelihood strategies. In an area where migrant remittances remain one of the main sources of income for rural households, women have increasingly engaged in collective economic strategies such as pottery making, sewing, and agricultural production. These strategies are embedded in a complex set of patriarchal institutions that reinforce unequal access to resources and have historically marginalized rural black women. Despite these barriers, findings from this study demonstrate that community projects provide the potential for economic and social empowerment, especially among rural women.  相似文献   
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The Olmec were the first complex society to develop in Mesoamerica between 1800 and 600 cal B.C. The earliest large Olmec center during this period was the archaeological site of San Lorenzo which emerged as Mesoamerica's first large ritual and political center between 1400 and 1000 cal B.C. San Lorenzo's growth as a prominent center included the development of long distance trade relationships with adjacent areas of Guatemala and highland Mexico. High precision chemical analysis of obsidian imported for use in the fabrication of cutting tools is used to reconstruct the growth, size and extent of San Lorenzo's interregional exchange networks with areas of Mexico and Guatemala where obsidian occurs as raw material. A total of 852 obsidian artifacts were analyzed to reconstruct changes in obsidian procurement between 1800 and 800 cal B.C. This represents one of the largest samples of sourced obsidian from a Mesoamerican site and it provides a comprehensive picture for the development of interregional trade networks for Mesoamerica's first large Olmec center.  相似文献   
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Genome editing — a plant-breeding technology that facilitates the manipulation of genetic traits within living organisms — has captured the imagination of scholars and professionals working on agricultural development in Africa. Echoing the arrival of genetically modified (GM) crops decades ago, genome editing is being heralded as a technology with the potential to revolutionize breeding based on enhanced precision, reduced cost and increased speed. This article makes two interventions. First, it identifies the discursive continuity linking genome editing and the earlier technology of genetic modification. Second, it offers a suite of recommendations regarding how lessons learned from GM crops might be integrated into future breeding programmes focused on genome editing. Ultimately, the authors argue that donors, policy makers and scientists should move beyond the genome towards systems-level thinking by prioritizing the co-development of technologies with farmers; using plant material that is unencumbered by intellectual property restrictions and therefore accessible to resource-poor farmers; and acknowledging that seeds are components of complex and dynamic agroecological production systems. If these lessons are not heeded, genome-editing projects are in danger of repeating mistakes of the past.  相似文献   
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A tributary of the Banas, the Nagdi River flows through the old market town of Jahazpur in Bhilwara District, Rajasthan. Unlike India's major sacred waterways such as the Ganga and the Yamuna which have the status of goddesses, the Nagdi was never deified. However, it figures in Jahazpur's origin legend, reaching back to the epic Mahabharata. Due to a complex convergence of conditions unique to this place but resonant with ecological tragedies the world over, the Nagdi's flow has dwindled and its waters are badly polluted. Everyone in Jahazpur with whom the authors spoke during fieldwork in 2010–11 mourned the end of their river. Once proud of the Nagdi's beauty and miraculous properties, Jahazpur residents were aware of having lost an important part of their environmental and cultural heritage. This article explores the complex causalities of the Nagdi's deterioration and emergent possibilities for its restoration.  相似文献   
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Understanding palaeotopographical variability forms the basis for understanding prehistoric societies. Alluvial and lacustrine environments, in particular, are key areas with both a high archaeological and palaeoecological potential. However, the often deep stratification of these sites, the high water table and the complex sedimentological variations can hamper a detailed reconstruction of the spatial relationship between prehistoric settlement and their environment. Combining different remote and proximal sensing techniques and coring data, can offer detailed insight into such landscapes. More specifically, the integration of mobile geophysical methods allows the collection of unprecedented continuous information on large-scale palaeolandscape variability. In this study we present a combined approach in order to map and model prehistoric landscapes and river systems in and around a Late Glacial palaeolake in north-western Belgium. Based on filtered and unfiltered digital elevation models, a survey area of 60 ha was selected, in which detailed mobile multi-receiver electromagnetic induction survey was conducted. The results allowed for the delineation of palaeochannels in the area and enabled modelling the depth of these features in the survey area, providing insight into their flow characteristics. 14C sampling enabled the dating of the evolving river system to the transition between the Late Glacial and the Early Holocene. Through additional coring, this river system could be traced further through the palaeolake area. Based on these results a detailed reconstruction was made of the palaeotopography that harboured the Final Palaeolithic and Early Mesolithic occupation of the study site.  相似文献   
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