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   651篇
  免费   11篇
  662篇
  2024年   12篇
  2023年   18篇
  2022年   2篇
  2021年   6篇
  2020年   26篇
  2019年   34篇
  2018年   58篇
  2017年   44篇
  2016年   36篇
  2015年   27篇
  2014年   24篇
  2013年   124篇
  2012年   24篇
  2011年   22篇
  2010年   35篇
  2009年   20篇
  2008年   16篇
  2007年   16篇
  2006年   11篇
  2005年   5篇
  2004年   6篇
  2003年   7篇
  2002年   10篇
  2001年   5篇
  2000年   7篇
  1999年   6篇
  1998年   8篇
  1997年   3篇
  1996年   4篇
  1995年   5篇
  1994年   4篇
  1993年   5篇
  1992年   5篇
  1991年   3篇
  1990年   2篇
  1989年   4篇
  1988年   1篇
  1987年   3篇
  1986年   3篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1980年   1篇
  1979年   1篇
  1978年   1篇
  1974年   1篇
  1973年   1篇
  1972年   1篇
  1971年   1篇
  1968年   1篇
排序方式: 共有662条查询结果,搜索用时 15 毫秒
101.
The Mesolithic–Neolithic transition in north-west Europe has been described as rapid and uniform, entailing a swift shift from the use of marine and other wild resources to domesticated terrestrial resources. Here, we approach the when, what and how of this transition on a regional level, using empirical data from Öland, an island in the Baltic Sea off the Swedish east coast, and also monitor changes that occurred after the shift. Radiocarbon dating and stable carbon and nitrogen isotope analyses of bones and teeth from 123 human individuals, along with faunal isotope data from 27 species, applying to nine sites on Öland and covering a time span from the Mesolithic to the Roman Period, demonstrate a great diversity in food practices, mainly governed by culture and independent of climatic changes. There was a marked dietary shift during the second half of the third millennium from a mixed marine diet to the use of exclusively terrestrial resources, interpreted as marking the large-scale introduction of farming. Contrary to previous claims, this took place at the end of the Neolithic and not at the onset. Our data also show that culturally induced dietary transitions occurred continuously throughout prehistory. The availability of high-resolution data on various levels, from intra-individual to inter-population, makes stable isotope analysis a powerful tool for studying the evolution of food practices.  相似文献   
102.
103.
104.
105.
This article addresses the dark and barely known side of one of the most iconic symbols of Spanish heritage: the Palaeolithic cave of Altamira (region of Cantabria). The cave is a benchmark of European rock art and was declared a World Heritage Site by UNESCO in 1985. Access to the cave’s guestbook (inaugurated on 18 August 1928 with King Alfonso XIII’s signature) has granted us the opportunity to deconstruct the hegemonic discourse therein, and to approach a time, the Spanish Civil War (1936–1939), which had been left almost without discussion in historical literature on the archaeological site. Conflict Archaeology can cast light on this unknown reality and raise controversial and contentious issues about the Altamira cave and its role as a wartime cultural asset during the war.  相似文献   
106.
The superposition of anthropogenic remains usually results in archaeological palimpsests, hindering an accurate characterization of the behavior underlying such remains. Aimed at facing this methodological constraint in the study of Palaeolithic contexts, we present a contextual approach to Neanderthal settlement dynamics based on an understanding of lithic assemblage formation processes. We focused on a set of lithic artifacts from the Middle Palaeolithic site of El Salt. With the goal of isolating temporally constrained units of behavioral analysis, we analyzed the spatial distribution of lithic, faunal and combustion remains. Then, the lithic records from each of the resulting units were analyzed from a genetic and technical perspective. This goal was achieved by identifying lithic Raw Material Units (RMU) through observations on reduction processes, refits and their spatial distribution. Our results suggest that El Salt SU X lithic remains represent several diachronic human occupation episodes and different site functions. This study illustrates the benefit of investigating lithic assemblage formation processes to alleviate the palimpsest problem in Palaeolithic contexts.  相似文献   
107.
This article focuses on the origins of analytical philosophy. It argues that the conditions under which it was thought out were similar to the conditions necessary for critical thinking - like the scientific inquiry that served as its model, analytical philosophy was based on the distinction between syntax and semantics. Resulting from logical analysis, this distinction was later essential to all systems of representation - works of art, human action, intellectual endeavours. This evolution reveals a major concern - the need for a technical tool for the critical mind.  相似文献   
108.
The survey discusses the identity and self-image of seventeenth-century Hungarian and Transylvanian travellers as conveyed through their travel texts. The cultural borders in the mental map of the travellers coincided with the eastern and south-eastern borders of Transylvania. They placed themselves in the same position as their Western European contemporaries. Although the general tone of their diaries was one of admiration, they did not make explicit comparisons to the disadvantages of their home. There are also some cases of criticism on a civilisational basis towards the West, which shows that the travellers felt that they were on equal grounds to the West. The few cases of auto-stereotypes also show that some travellers tended to reinforce even the negative stereotypes attributed to Hungarians in order to question the Western discourse which placed them on a lower grade on a scale of civilisation. Towards their Eastern neighbours, the travellers tended to use a condescending tone: qualities such as boorishness, lack of education and barbarity were attributed to Russians, Wallachians and Moldavians. The worst reputation belonged to the Ottomans: in their case, even if – in a very few cases – tolerance and understanding came into picture, there was no possibility of acceptance. Hungarian travellers only used the discourse of their own inferiority towards Western Europeans when it was a part of their political agenda – otherwise, they included themselves in the concept of the region, imagined on the basis of erudition and Latin education – which they more and more often called Europe.  相似文献   
109.
Archaeological evidence shows that populations used to transverse the Sahara Desert throughout the Holocene despite the extreme temperatures and the rough physical terrain. The current paper examines whether the desert inhibited extended gene flow among populations by means of cranial morphology as captured by geometric morphometrics. The examined populations include the Garamantes, a group centered in Southwest Libya and largely controlling trans-Saharan trade, and various Egyptian, Tunisian and Sudanese groups dating to the Middle and Late Holocene. The results showed that most inter-population comparisons were statistically significant and therefore all populations appear more or less distant to each other. The Mahalanobis biodistance measure identified four clusters. The first consists of the Garamantes alone, the second includes the populations from Kerma and Gizeh, the third includes the Badari and Naqada, while the fourth consists of the samples from Algeria, Carthago, Soleb and Alexandria. Moreover, the distance of the Garamantes to their neighbors was significantly high and the population appeared to be an outlier. This is attributed to the location of the Garamantes at the core of the desert, indicating that, despite the archaeological evidence, the Sahara Desert posed important limitations to gene flow between the Garamantes and other North African populations.  相似文献   
110.
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