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   1251篇
  免费   396篇
  2021年   26篇
  2020年   22篇
  2019年   139篇
  2018年   110篇
  2017年   99篇
  2016年   118篇
  2015年   115篇
  2014年   108篇
  2013年   228篇
  2012年   123篇
  2011年   112篇
  2010年   84篇
  2009年   38篇
  2008年   67篇
  2007年   61篇
  2006年   37篇
  2005年   34篇
  2004年   29篇
  2003年   30篇
  2002年   20篇
  2001年   24篇
  2000年   20篇
  1999年   3篇
排序方式: 共有1647条查询结果,搜索用时 375 毫秒
991.
The objectives of this work are to present a set of methodological procedures to analyse commingled bone assemblages (e.g. secondary burials), in order to build the mortality profile of the Paso Alsina 1 site and discuss the obtained age at death distribution in a context of hunter‐gatherer populations that inhabited the eastern Pampa–Patagonia transition (Argentina) during the Final Late Holocene. The Paso Alsina 1 site is a formal disposal area of inhumations composed by multiple secondary burials dated at ca. 500 14C years BP. The site is comprised of a minimum number of 77 individuals, represented by both sexes and all age categories. The mortality profile is characterized by a bimodal pattern with a peak of greater representation of individuals younger than 3 years and another comprising the range between 20 and 34.9 years old. These results are discussed in relation to the paleopathological information available for the site, indicating that individuals suffered mainly disruptions in growth and development by systemic stress. The mortality profile obtained suggests that this skeletal series would not have formed as a result of a catastrophic event. On the contrary, it is an atricional mortality profile, consisting of individuals who died at different times and places and for varied reasons. Later, skeletal remains were grouped into secondary bundles and simultaneously buried at the site. Body manipulation and secondary burials are common in the context of a social reorganization that occurred in the area and in neighbouring regions during the Final Late Holocene. Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   
992.
By integrating osteological, taphonomic, archaeological and stable isotopic data, we test for cannibalism in the Lau Group, Fiji and discuss the potential underlying cause(s) and context(s) of this behaviour. First, we compare taphonomic and element representations of human skeletal material from two contexts in Fiji, examining human bone fragments from archaeological sites, including middens and burials in the Lau Island Group. Fourteen sites produced human remains. Only two of those sites included distinct human burial contexts, but in the remaining 12 sites, the human bone was recovered from middens or contexts where midden was mixed with possible secondary burials. A total of 262 number of identified specimens per species, representing an estimated 15 minimum number of individuals make up the Lau human assemblage. Second, we analysed bones contained in 20 individual human burials from four different sites that are housed at the Fiji Museum for comparative purposes. Third, we examine previously published stable isotopic (δ13C, δ15N) analysis of bone collagen to gauge protein consumption of likely cannibalised humans in midden contexts and potential cannibals from primary burials. We model a cannibalistic diet category within the context of isotopically measured Pacific Islands food groups and apply an isotopic mixing model to gauge plausible dietary contributions from six sources including human flesh. Isotopic mixing models of the Lauan samples illustrate a high diversity in reconstructed diets. The percent contribution of human flesh is low for all individual Lauans. We conclude that mortuary rituals evidenced by sharp‐force trauma may suggest non‐nutritive and non‐violent practices that may have included the consumption of small amounts of human flesh. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
993.
Approaching the study of camelid bone size change in the meridional portion of the South Central Andes is a significant subject especially when the assemblages are associated to radiocarbon dates placed at a time of social transition from an extractive to a producer economy. In this sense, this paper presents the results of applying osteometric techniques on a set of 10 elements from the Peñas Chicas 1.5 site dated around 3800 BP . The analysis shows the presence of at least three individuals, one of which corresponds to an Andean guanaco (Lama guanicoe) morphotype. The second and the third are similar in size to a modern llama (Lama glama) in their ‘intermediate’ and ‘cargo’ morphotypes. This is consistent with patterns already seen for sites from the Argentinian and Chilean Puna where the identification of larger individuals than the Andean guanaco modern standard shows the early stages of an increasingly bone size variability of South American camelids. This paper contributes with new data to understand the complex processes that occurred in the South Central Andes that led to the domestication of one of the most conspicuous animals in the archaeological record of the Argentinian Northwest. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
994.
The occurrence of spondylolysis (neural arch separation at the pars interarticularis) is reported in a pre‐contact (720–550 Cal BP) Central California population, CA‐CCo‐647 (n = 46). Spondylolysis was examined within this population to assess differences in sex, age, and possible relationships with biological affinity. Furthermore, prevalence rates of spondylolysis were compared across various populations to discern the aetiology of the defect. Within CA‐CCo‐647, spondylolysis was found in 17.4% (8/46) of the population. All occurrences are complete, bilateral separations of the neural arch in the lower lumbar (L4 and L5). The defect is not seen in individuals below the age of 18, and there is no correlation between adult age and spondylolysis. Male individuals display the defect at a higher rate (30.8% ‐ 4/13) than female individuals (12.1% ‐ 4/33); however, this is not a statistically significant finding. There does seem to be a correlation between an individual's sex and the onset of the defect; male individuals display spondylolysis at a younger age than female individuals. This finding could represent differences in activity patterns among young male and female individuals. In a biological distance analysis using craniometric data, male and female individuals with spondylolysis clustered closely, suggesting a genetic component for the defect. Finally, significant differences were found in spondylolysis prevalence between various populations representing distinct geographic and temporal settings. Significant differences were found among Native pre‐contact samples and even between two comparable pre‐contact California skeletal samples. These populations all engaged in distinct activities and were likely composed of genetically distinct groups of individuals, which may account for the differences in spondylolysis prevalence. All of these findings, both within CA‐CCo‐647 and between the various samples, suggest that the aetiology of spondylolysis is likely an interaction of genes and activity. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   
995.
Underwater excavation of a shipwreck‐site off Hof Carmel, south of Haifa, Israel, yielded numerous artefacts associated with a ship and cargo dated to the 3rd century AD. Among them were eight sewing needles: six of bronze, one of copper and one of brass. This article describes the needles including their chemical composition, discusses comparable finds from nautical and domestic contexts, and their possible uses and roles aboard a Roman ship.  相似文献   
996.
This paper presents both archaeological evidence and technical features that allows the identification of two of the wooden objects discovered in 2001 at the site of a 1st‐century‐AD shipyard in Olbia, Sardinia, as masts. The structure and dimensions of the objects are presented and compared with similar artefacts which have been interpreted as rudder‐stocks in order to establish their specific and distinct features. Possible retaining and lowering systems for the masts, and evidence of wooden mast‐ladders are discussed through examination of archaeological parallels and Roman iconography.  相似文献   
997.
At the time of the discovery of the Newport medieval ship, it proved impossible to date the timbers used in its original construction through dendrochronology. Associated British timbers and artefacts provided dating to the mid 15th century, with the latter pointing to strong Iberian connections. The development of regional oak ring‐width chronologies in the Basque Country, and their extension back in time to overlap with the ring‐width mean developed for the Newport Ship, has allowed absolute dating and provenance of timbers used in its original construction. Further research is required to clarify the geographical source of the timbers and to develop a high‐resolution network of tree‐ring data for the region.  相似文献   
998.
The ethnic‐civic framework remains widely used in nationalism research. However, in the context of European immigrant integration politics, where almost all ‘nation talk’ is occurring in civic and liberal registers, the framework has a hard time identifying how conceptions of national identity brought forth in political debate differ in their exclusionary potential. This leads some to the conclusion that national identity is losing explanatory power. Building on the insights of Oliver Zimmer, I argue that we may find a different picture if we treat cultural content and logic of boundary construction – two parameters conflated in the ethnic‐civic framework – as two distinct analytical levels. The framework I propose focuses on an individual and collective dimension of logic of boundary construction that together constitute the inclusionary/exclusionary core of national identity. The framework is tested on the political debate on immigrant integration in Denmark and Norway in selected years. Indeed, the framework enables us to move beyond the widespread idea that Danish politicians subscribe to an ethnic conception of the nation, while Norwegian political thought is somewhere in between an ethnic and civic conception. The true difference is that Danish politicians, unlike their Norwegian counterparts, do not acknowledge the collective self‐understanding as an object of political action.  相似文献   
999.
There is a substantial body of literature on nation‐building that, from a variety of theoretical approaches, examines the role of symbolic constructs in the process of construction and consolidation of new nation‐states. Among these works, the dramatic and symbolic aspects of election and their function in the nation‐building project have been investigated by political scientists and anthropologists alike. However, analysis of electoral emblems as constitutive elements in the nation‐building process has been largely missing from most studies of nation‐building and official nationalism. A case study of postindependence India suggests how national belonging was also made to hinge upon on competent democratic participation of the masses in the political life of the country. Central to this process of identity work was the establishment of an independent Election Commission and of strict rules for the design, selection and allotment of election emblems. Conventional accounts have argued that these procedures were introduced primarily for the benefit of the uneducated masses who were suddenly invited to participate in India's democratic process. I argue against this simplistic interpretation. Far from being only tools for the simplification of electoral processes, India's election symbols were one of India's institutional mechanisms designed to nurture the development of a correct democratic conduct and therefore ultimately contributing to the Nehruvian national project.  相似文献   
1000.
One of the classical questions in the study of nationalism concerns the end of empires. Is nationalism, to use the phrase of Hiers and Wimmer, the cause or consequence of the end of empire? This paper considers a neglected case, that of the decomposition of the Danish imperial monarchy in the years between 1848 and 1864. We find that nationalist conflicts indisputably caused the end of this political entity. Crucially, Danish nationalists in the imperial core preferred to downsize the territories controlled by the Oldenburgs rather than to share power with German speakers in the periphery. Decomposition was not, however, inevitable: an early introduction of power‐sharing schemes might have saved the imperial monarchy.  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