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   1802篇
  免费   59篇
  2020年   21篇
  2019年   26篇
  2018年   54篇
  2017年   51篇
  2016年   39篇
  2015年   43篇
  2014年   46篇
  2013年   609篇
  2012年   32篇
  2011年   42篇
  2010年   30篇
  2009年   30篇
  2008年   39篇
  2007年   26篇
  2006年   26篇
  2005年   27篇
  2004年   32篇
  2003年   13篇
  2002年   25篇
  2001年   22篇
  2000年   23篇
  1999年   16篇
  1998年   21篇
  1997年   19篇
  1996年   20篇
  1995年   19篇
  1994年   19篇
  1993年   21篇
  1992年   20篇
  1991年   12篇
  1990年   14篇
  1989年   13篇
  1988年   21篇
  1987年   13篇
  1986年   17篇
  1985年   31篇
  1984年   26篇
  1983年   22篇
  1982年   29篇
  1981年   18篇
  1980年   22篇
  1979年   30篇
  1978年   19篇
  1977年   29篇
  1976年   11篇
  1975年   23篇
  1974年   21篇
  1973年   11篇
  1970年   10篇
  1969年   11篇
排序方式: 共有1861条查询结果,搜索用时 15 毫秒
41.
As overt racial discrimination lessens and the social and economic status of minorities rises, segregation by class should become more and segregation by race less prominent. This hypothesis is tested via several structural and spatial measures of segregation, for class and for race separately and simultaneously. Even in the ostensibly liberal Seattle, race is found to remain vastly stronger than class for blacks, and even somewhat stronger for Asians.  相似文献   
42.
The fossil record suggests that modern human morphology evolved in Africa between 150,000 and 50,000 years ago, when the sole inhabitants of Eurasia were the Neanderthals and other equally nonmodern people. However, the earliest modern or near-modern Africans were behaviorally (archaeologically) indistinguishable from their nonmodern, Eurasian contemporaries, and it was only around 50,000-40,000 years ago that a major behavioral difference developed. Archaeological indications of this difference include the oldest indisputable ornaments (or art broadly understood); the oldest evidence for routine use of bone, ivory, and shell to produce formal (standardized) artifacts; greatly accelerated variation in stone artifact assemblages through time and space; and hunting-gathering innovations that promoted significantly larger populations. As a complex, the novel traits imply fully modern cognitive and communicative abilities, or more succinctly, the fully modern capacity for Culture. The competitive advantage of this capacity is obvious, and preliminary dates suggest that it appeared in Africa about 50,000 years ago and then successively in western Asia, eastern Europe, and western Europe, in keeping with an African origin. Arguably, the development of modern behavior depended on a neural change broadly like those that accompanied yet earlier archaeologically detectable behavioral advances. This explanation is problematic, however, because the putative change was in brain organization, not size, and fossil skulls provide little or no secure evidence for brain structure. Other potential objections to a neural advance in Africa 50,000-40,000 years ago or to the wider Out-of-Africa hypothesis, include archaeological evidence (1) that some Neanderthals were actually capable of fully modern behavior and (2) that some Africans were behaviorally modern more than 90,000 years ago.  相似文献   
43.
In recent years, cultural anthropologists have made notable progress in understanding the bewildering variety of material exchange transactions found among the aboriginal populations of highland New Guinea. One of the major findings of this work is that competitive exchange behavior may bring in its wake alterations in agronomic practices involving an intensification of production. That intensification is primarily a product of social behavior, rather than an adaptation to climate change or population pressure, is a significant conclusion that should influence the thinking of archaeologists as they investigate past episodes of agronomic change, including the origins of agriculture.  相似文献   
44.
The Reception of Hayden White   总被引:1,自引:0,他引:1  
Evaluation of the influence of Hayden White on the theory of history ismade difficult by his preference for the essay form, valued for its experimental character, and by the need to find comparable data. A quantitative study of citations of his work in English and foreign-language journals, 1973–1993, reveals that although historians were prominent among early readers of Metahistory , few historical journals reviewed White'stwo subsequent collections of essays and few historians—except inGermany—cited them. Those historians who did tended still to cite Metahistory and often the parts of it devoted specifically to nineteenth-century historians.
Literary critics, on the other hand, were relatively late to discover White, but during the "narrative turn" of the 1970s and 1980s his work was important for students of the novel and the theater. Recognition of it was especially marked in Spanish-speaking countries and in Germany.
As a result, salient themes of White's later work—the ideological andpolitical import of narrativization, the "historical sublime," and writing in the "middle voice"—have largely gone unremarked by historians and philosophers. Both these groups have tended to be irritated by White's bracketing of questions of historical epistemology; some have accused him of effacing the line between fiction and history, while White's numerous literary readers have generally applauded his tendencies in thisdirection. White however has consistently maintained that there is a difference, although not the one conventionally postulated. His exploration of writing in the "middle voice" brings his work full circle, in that it promises a "modernist" realism appropriate for representing the "sublime" events of our century.  相似文献   
45.
Recent Paleolithic work along the middle Enisei River of central Siberia has revealed a long history of occupation that almost certainly begins in the Middle Pleistocene. Although the evidence for the Lower Paleolithic is somewhat tentative, there is good reason to believe that hunter-gatherers had periodically occupied the middle Enisei before the last interglacial. The steppe environment of the region during the Upper Pleistocene was relatively bountiful; more than 200 Upper Paleolithic sites, both before and after the Last Glacial Maximum, have been located. The region appears to have been abandoned during the Last Glacial Maximum. Most of Soviet and Russian archaeological work has been guided by a cultural–historical orientation, but recently there has been increased interest in developing adaptationist and ecological research strategies. The middle Enisei and the wider central Siberian region are key to understanding early adaptations to the north and the dimensions of Paleolithic population movements.  相似文献   
46.
Cole J 《家族历史杂志》1996,21(4):419-445
In 1874, legislators in France passed a law regulating the wet-nursing industry. Citing recent medical research into the causes and social costs of high infant mortality, the law's supporters met little opposition, despite the fact that the law challenged the tradition of paternal authority and familial autonomy that had been inscribed in French law since the promulgation of the Civil Code of 1804. Extending state power into the familial realm required a concerted effort by reformers, who concentrated on two issues: maternal responsibility for newborn infants and the social costs of early death. Because working women in urban areas used wet-nurses to preserve their wage-earning capacity, reformers capitalized on widespread opposition to women's labor outside the home. The law met little opposition in part because the issues of paternal authority had already been thoroughly debated several months earlier in the child labor law of 1874.  相似文献   
47.
In the last two decades, many states established rail promotion programs in an effort to limit the contraction of their railroad networks. Now federal funds for rail projects are nearly exhausted, and states must decide whether to expand considerably their levels of internal funding for short line investments. Such a decision requires a careful articulation of policy goals, combined with sound cost-benefit techniques. Research shows, however, that states often fail to evaluate the full range of costs and benefits when considering rail investments. Instead, the economic development benefits of local rail service frequently are overstated, while the potential for rail investments to meet broader transportation planning needs is neglected. This paper evaluates the rationale behind state intervention in the rail industry, discusses the tendency of states to focus on economic development to the exclusion of other benefit categories, and presents summary results from an analysis of an investment project in North Carolina. The paper suggests that state funding for rail projects is more likely to be justified based on intermodal substitution benefits generated by local rail service, rather than the railroads' potential to increase jobs.  相似文献   
48.
49.
50.
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