首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   296篇
  免费   9篇
  2023年   1篇
  2022年   3篇
  2021年   1篇
  2020年   2篇
  2019年   9篇
  2018年   13篇
  2017年   4篇
  2016年   10篇
  2015年   10篇
  2014年   10篇
  2013年   85篇
  2012年   6篇
  2011年   6篇
  2010年   17篇
  2009年   9篇
  2008年   17篇
  2007年   5篇
  2006年   6篇
  2005年   1篇
  2004年   3篇
  2003年   6篇
  2002年   5篇
  2001年   10篇
  2000年   6篇
  1999年   6篇
  1998年   7篇
  1997年   4篇
  1996年   2篇
  1995年   3篇
  1994年   2篇
  1993年   4篇
  1992年   1篇
  1991年   1篇
  1990年   2篇
  1989年   1篇
  1987年   4篇
  1985年   2篇
  1984年   4篇
  1983年   2篇
  1982年   4篇
  1980年   1篇
  1979年   3篇
  1978年   2篇
  1977年   1篇
  1976年   3篇
  1974年   1篇
排序方式: 共有305条查询结果,搜索用时 15 毫秒
21.
22.
This paper presents the results of in situ monitoring of waterlogged burial contexts in southwest Scotland. The sites investigated are Iron Age crannogs (lake dwellings) which have a proven waterlogged archaeological component, and which are being assessed as part of a national program of study by the Scottish Wetland Archaeology Programme (SWAP) team. A monthly monitoring program commenced in July of 2004. To date, monitoring of water levels, pH, and redox potential, has been undertaken for a period of 17 months in order to encompass any seasonal variability at the sites studied. The results have proven robust in that an ‘ideal’ site for in situ preservation has been identified from the five sites investigated, and the monitoring has highlighted external variables and seasonal impacts that have the potential to influence the long-term in situ preservation at the remaining sites studied. In general, these results have expanded upon our knowledge of the potential for the preservation of existing archaeological remains within such contexts. This study represents the first stage of monitoring aimed at developing a holistic understanding of in situ conditions at the crannog sites studied in southwest Scotland.  相似文献   
23.
24.
Historical, artefactual and place‐name evidence indicates that Scandinavian migrants moved to eastern England in the ninth century AD, settling in the Danelaw. However, only a handful of characteristically Scandinavian burials have been found in the region. One, widely held, explanation is that most of these Scandinavian settlers quickly adopted local Christian burial customs, thus leaving Scandinavians indistinguishable from the Anglo‐Saxon population. We undertook osteological and isotopic analysis to investigate the presence of first‐generation Scandinavian migrants. Burials from Masham were typical of the later Anglo‐Saxon period and included men, women and children. The location and positioning of the four adult burials from Coppergate, however, are unusual for Anglo‐Scandinavian York. None of the skeletons revealed interpersonal violence. Isotopic evidence did not suggest a marine component in the diet of either group, but revealed migration on a regional, and possibly an international, scale. Combined strontium and oxygen isotope analysis should be used to investigate further both regional and Scandinavian migration in the later Anglo‐Saxon period.  相似文献   
25.
26.
Excavated human bone was exposed to aqueous solutions containing high concentrations of a single added metal ion in order to examine the extent of introduction of contaminating materials during burial. Variables included pH, temperature, ion concentration, state of bone (whole or crushed), structure of buffer, and counterion. Calcium and sodium showed little increase, and even a decrease in some cases. Strontium, zinc, lead, and magnesium showed large increases probably through heteroionic replacement of calcium. Manganese, aluminum, and potassium showed increases, particularly under neutral conditions, probably through infiltration into voids and defects.  相似文献   
27.
Accreting skeletal tissues found in bone, teeth, otoliths and molluscan shell act as sensitive recorders of local environmental and climatic conditions. Owing to their robust nature, ubiquity and abundance in the archaeological record as well as the potential for high-resolution data acquisition, the accreting skeletal tissues of archaeological molluscs are increasingly employed as palaeoenvironmental proxies. Researchers have chiefly utilised such proxies to extend instrumental records of environmental conditions through palaeoenvironmental reconstruction and explore the impact of environmental and climatic change on human populations. However, the use of environmental proxies from the archaeological record can be hampered by a number of methodological challenges including inadequate sampling strategies, appropriate calibration, the use of inappropriate proxies and the broad extrapolation of localised results. This paper reviews the use of molluscan shell from archaeological contexts as palaeoenvironmental proxies. We focus on the application of sclerochronology—a suite of high-resolution physical and geochemical data recovery methods widely used in conjunction with molluscan shell. This paper presents an overview of the potential of these techniques in approaching more nuanced understandings of human-environment interactions and how they can be more successfully incorporated into archaeological research.  相似文献   
28.
Copán, a major Classic Maya center in western Honduras, has been the focus of archaeological investigation for over a century. An intense period of research since 1975, involving projects and scholars from many institutions, has resulted in a comprehensive understanding of the origin, maturation, and decline of this major Maya polity.  相似文献   
29.
In the South Pacific islands, development assistance agencies, financial institutions, and international NGOs approach conservation in ways that provide opportunities for foreigners to advise islanders about appropriate paths to development. They fund the intergovernmental South Pacific Regional Environment Programme (SPREP), which uses its organizational, legal and discursive powers to create opportunities for their work, and so helps validate inequitable political and economic relationships between the islands and developed regions, ensuring that these continue unchallenged by concerns about environmental degradation. But this outsider–insider dichotomy is too simplistic to describe all the endeavours connected with South Pacific protected areas. Amongst indigenous interests in the islands there is more than a single conservation agenda. The variety of agendas connected to efforts to protect natural areas in the South Pacific islands illustrates that conservation is more than a technical endeavour with a single moral goal. Conservationists’ success in preserving biodiversity and natural areas depends, therefore, upon forming explicit and open alliances with other individuals who, although they may have different aspirations and values, are prepared to work openly and effectively with them to achieve some agreed measures.  相似文献   
30.
Before 1945, films of the empire genre, produced in Hollywood as well as Britain, celebrated the masculinity of the British adventure hero, and promoted an imperial world view. This article explores the significance of the incorporation of white women into empire films in the late 1940s and 1950s, focusing on three films from different moments in the period. What are the range of meanings assigned to white femininity in these films, and their significance to the politics of race and gender? How is the white woman represented in relation to colonised women and men? In addressing these questions the article considers shifts in the gendering of the empire genre as part of an attempt to address a range of anxieties – about the transition from empire to Commonwealth, the rise of American power, and the collapse of boundaries between colonisers and colonised.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号