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   1330篇
  免费   91篇
  2024年   6篇
  2023年   28篇
  2022年   9篇
  2021年   5篇
  2020年   64篇
  2019年   46篇
  2018年   113篇
  2017年   119篇
  2016年   96篇
  2015年   66篇
  2014年   62篇
  2013年   332篇
  2012年   53篇
  2011年   52篇
  2010年   36篇
  2009年   32篇
  2008年   34篇
  2007年   18篇
  2006年   24篇
  2005年   16篇
  2004年   12篇
  2003年   13篇
  2002年   15篇
  2001年   19篇
  2000年   9篇
  1999年   12篇
  1998年   13篇
  1997年   7篇
  1996年   10篇
  1995年   6篇
  1994年   5篇
  1993年   12篇
  1992年   7篇
  1991年   7篇
  1990年   8篇
  1989年   6篇
  1988年   6篇
  1987年   7篇
  1986年   9篇
  1985年   3篇
  1982年   4篇
  1981年   4篇
  1977年   1篇
  1969年   2篇
  1962年   1篇
  1959年   2篇
  1957年   1篇
  1956年   1篇
  1952年   1篇
  1950年   5篇
排序方式: 共有1421条查询结果,搜索用时 31 毫秒
51.
At Nunalleq, a pre-contact Yup'ik Eskimo village site in Alaska (14th–17th century AD), abundant insect remains from highly organic substrates preserved within permafrost offer a unique opportunity to investigate past ecological and living conditions. This paper presents the preliminary results obtained from the analysis of two samples collected from floor layers in sod houses. The numerous and diverse insect remains highlight the exciting potential of archaeoentomology for reconstructing past ecological conditions, resource exploitation and the use of space at northern hunter–gatherer sites and have permitted the development of a strategy for the future collection of archaeoentomological data at permafrost-preserved sites in Alaska and elsewhere.  相似文献   
52.
53.
54.
55.
India's oilseeds sector, which includes its coconut economy, experienced drastic changes in the wake of agricultural liberalization in the mid‐1990s. A persistent coconut crisis ‘narrative’ emerged after sharp price declines between 2000 and 2002 in which small farmers in the state of Kerala, India's main coconut producer, were identified as victims of the liberalized importation of cheap palm oil. This article describes this crisis narrative based on a literature review of academic and official reports, and challenges its problem analysis by juxtaposing it with information from ethnographic research with local farmers and traders. The research indicates that local labour shortages and increased regional competition also had a strong impact on Kerala's coconut market, production and processing, which varied from region to region. Furthermore, small farmers, with their diversified livelihoods, did not recognize a ‘crisis’ as such. Drawing upon the ‘advocacy coalition framework’, the article also indicates reasons for the emergence and persistence of the coconut crisis narrative and points to complex processes of restructuring social space in the age of globalization.  相似文献   
56.
In the Iberian Peninsula, the copper metallurgy from the Chalcolithic to the Middle Bronze Age (MBA) was mostly characterized by low arsenic contents. A collection of 53 MBA artefacts from southern Portugal was analysed by micro‐EDXRF, optical microscopy, SEM–EDS and Vickers to investigate the metal composition and manufacture. No technological distinction was found between artefacts from domestic and funerary contexts, which were radiocarbon‐dated to 2000–1500 cal bc . The arsenic contents of almost 100 MBA artefacts from this region, including the above‐mentioned set, have a Gaussian distribution with a high average (3.9 wt% As). Possible explanations are discussed for this distinctive metallurgy at the south‐western end of the Iberian Peninsula.  相似文献   
57.
58.
In 1665, Robert Hooke published his major work in microscopy, Micrographia, a defense of experimental philosophy. The following year, Margaret Cavendish, Duchess of Newcastle, published at her own expense a treatise and a novel that undermined the basis of this new science. The dispute broke out at the initiative of the Duchess, in the context of a vast controversy about the legitimacy and the efficiency of optical instruments in natural philosophy. All the figures of the dual are used, except one: the counterattack. Cavendish, indeed, was alone on the battlefield. Is it possible to call a dual a battle with only one combatant? This particular case of dispute that stops owing to the shortage of combatants is the subject of this article.  相似文献   
59.
After a brief review of some of the general problems posed by Sophron’s work, the paper analyses Sophron’s fr. 3 K.-A., offering a detailed commentary and a new interpretation of the passage.  相似文献   
60.
Abstract

Ever since Jimmy Rabbitte proffered his oft-quoted “niggers of Europe” line in Roddy Doyle’s The Commitments (1987), contemporary Irish culture, especially during the boom years, was characterised by an insistent revisiting of popular music as a metaphor for interracial and/or intercultural connection or understanding. Cross-cultural identification through music may be seen, in Werner Sollors’s memorable terms, as an eschewing of “descent” relations in favour of “consensual” relations. This essay revisits the music metaphor as it has manifested itself in Irish fiction since it was announced officially that Ireland had entered recession in 2008. Specifically, it explores Kevin Curran’s Beatsploitation (2012) and Joseph O’Connor’s The Thrill of It All (2014) arguing that, through their deployment of the music metaphor, the novels stage the murky politics of contemporary Irish iterations of consent and descent. By exposing the extent to which the rhetoric of Irish economic recovery is yoked to paradoxical invocations of volitional and ancestral Irishness, the novels urge their readers to consider the ways in which discourses of economic recovery work to reinforce and perpetuate patterns of exclusion and marginalisation established during the Celtic Tiger years.  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