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   1322篇
  免费   59篇
  2023年   6篇
  2021年   4篇
  2020年   23篇
  2019年   24篇
  2018年   51篇
  2017年   49篇
  2016年   41篇
  2015年   43篇
  2014年   42篇
  2013年   325篇
  2012年   33篇
  2011年   42篇
  2010年   36篇
  2009年   45篇
  2008年   57篇
  2007年   43篇
  2006年   33篇
  2005年   26篇
  2004年   18篇
  2003年   21篇
  2002年   27篇
  2001年   28篇
  2000年   19篇
  1999年   24篇
  1998年   13篇
  1997年   20篇
  1996年   14篇
  1995年   12篇
  1994年   10篇
  1993年   18篇
  1992年   7篇
  1991年   10篇
  1990年   14篇
  1989年   15篇
  1988年   12篇
  1987年   9篇
  1986年   8篇
  1985年   14篇
  1984年   20篇
  1983年   12篇
  1982年   10篇
  1981年   9篇
  1980年   7篇
  1979年   18篇
  1978年   11篇
  1977年   9篇
  1976年   6篇
  1975年   10篇
  1974年   5篇
  1972年   6篇
排序方式: 共有1381条查询结果,搜索用时 15 毫秒
991.
Although the taking of scalps is arguably a perimortem trophy‐taking behaviour, cases of scalping survival are occasionally reported in the historical documents of the American Colonial Period and the 19th century westward expansion. Survival cases are also detected in pre‐Columbian bioarchaeological contexts. Although scalp avulsion injuries can heal without complication, often the process is compromised by secondary osteomyelitis, usually attributable to environmentally ever‐present Staphylococcal or Streptococcal bacteria. A scalping survivor case from the late prehistoric (AD 1200–1600) Hampton site (40RH41) of East Tennessee unusually displays infectious sequelae in the area denuded by scalp avulsion which are pathognomonic for treponemal disease (caries sicca, stellate scarring). This infection is probably a reflection of the easy opportunity afforded by the large size of the wound bed, poor post‐trauma hygiene, and direct inoculation of the diploë by a ubiquitous Treponema. Copyright © 2008 John Wiley & Sons, Ltd.  相似文献   
992.
Shipwrecks are resource rich. The recent Gulf of Mexico Deep Gulf Wrecks Project was meant to be shared and explored, not only by professional scientists but also by the public. The project website was the public link to the deepest reaches of the Gulf of Mexico during the scientific expedition. The website welcomed hundreds of visitors each day during the project. The audience composed of professionals and interested public followed the daily logs and videos. The overall scientific and educational data sets amassed from the project were, at times, overwhelmingly vast, but when segmented by topic, became manageable. After the fanfare generated by following along with the expedition ended, the primary project goals shifted to analysis and the creation of a lasting educational legacy. This legacy is presented digitally via the web. Project curriculum gives classrooms around the globe long-term access to the exciting scientific data. Along with the documentary film project the Deep Gulf Wrecks Project ensures that the legacy at the bottom of the Gulf of Mexico is indeed a lasting legacy.  相似文献   
993.
旅游和民族性的再创造   总被引:2,自引:0,他引:2  
Pierre  徐赣丽 《民俗研究》2006,(1):129-136
这是一篇对社会学家和人类学家编写的论文集做介绍的文章,主要论述旅游在保持、改变和重新创造民族边界中的作用。旅游被看成是民族交往的一种特别形式,导致了三个主要角色的形成,即游客、旅游对象和中间人。文章主要关涉:国家在发展民族旅游中扮演的角色、作为旅游结果的民族特征和民族意识的改变和再创造、在旅游交易中艺术形式的转变、旅游代理商的角色以及在民族旅游主客互动交往中形成了民族“刻板印象”。  相似文献   
994.
995.
Because architecture shapes and is shaped by human actions and perceptions, architectural variability has the potential to provide information about relationships among prehistoric social groups. This study examines communicative and enculturative information contained in Bonito-style architecture constructed in Chaco Canyon and outlying communities during the late eleventh century A.D. Does the appearance of Bonito-style architecture at outliers constitute direct involvement on the part of a centralized, Chacoan entity or could local people have been emulating Bonito-style architecture they saw at Chaco or in neighboring communities? These questions have implications for existing models of Chacoan social organization. To investigate, a comparative architectural analysis uses data from 61 great houses in 55 outlier communities. Analysis is based on the premise that outlier similarity should reflect a unified, direct Chacoan source for Bonito-style architecture, and diversity should reflect the converse. Because highly visible, external architectural characteristics can be emulated, five internal, low-visibility great-house architectural attributes were selected for comparison. Results indicate substantial diversity is contained within the Chacoan world. A variety of relationships probably existed between outlier communities and Chaco Canyon, and a range of explanatory models is necessary. Bonito-style architecture is more likely to be associated with a struggle to legitimate social power than with spontaneous, cooperative communal activity. Competitive emulation may account for the appearance of Bonito-style architecture in outlier communities toward the local end of the outlier spectrum.  相似文献   
996.
We offer a general-equilibrium economic approach to Zipf's Law or, more generally, the rank-size distribution—the striking empirical regularity concerning the size distribution of cities. We provide some further understanding of Zipf's Law by incorporating negative feedbacks (congestion) in a popular model of economic geography and international trade. This model allows the powers of agglomeration and spreading to be in long-run equilibrium, which enhances our understanding of the existence of a rank-size distribution of cities.  相似文献   
997.
In 1989, Evelyn Brooks Higginbotham observed that African Americanists paid scant attention to issues of gender and women's historians typically ignored questions of race; she warned that this silence compromised the very analysis of US history. Much has changed since Higginbotham issued her cautionary words. Not only has Americanist literature on gender and race grown exponentially over the past ten years, African-Americanist gender historians have produced some of the most influential monographs and articles in their field. This article surveys a decade's worth of conceptual breakthroughs in African-Americanist historiography as it ponders the question of whether certain silences still remain.  相似文献   
998.
This paper combines one of the few facts we know about the 1998 Queensland state election, ie the break-up of seats before and after the poll, with some straightforward assumptions about political behaviour to develop a spatial model of the election. In doing so, we reach interesting conclusions about the nature of the political contest in Queensland and highlight the existence of somewhat surprising similarities and differences between the policies of the main parties. Just as in mathematics when we can imagine a line and then imagine it projected out further, even to infinity, through the exercise of rational thought, so in politics we can consider actions and calculate consequences. Remark ascribed to John Wallis, Professor of Geometry at Oxford University in the seventeenth century. (Pears 1997, 435)  相似文献   
999.
This is an investigation of a fatal gunshot wound that occurred over a century ago, in Victorian England. Records dating from 1900 show that it was regarded as suicide by officials of the time. Forensic, palaeopathological, and historical techniques are applied in order to determine whether the manner of death was suicide, murder, or accident. Comparison of the projectile trajectory with modern forensic series suggests that this case is statistically more likely to have been a murder than a suicide. This raises the possibility that a killer successfully staged events to appear as if a suicide had taken place. A summary is given of the important points to consider when interpreting gunshot trauma to the head in skeletal remains. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
1000.
This paper examines the importance of industrial clusters, and the relevance of Porter's diamond model, in the context of the small open economy of Ireland. It analyses the experience of three relatively successful Irish indigenous sectors and it considers to what extent have clusters of related or connected industries been important in accounting for the degree of success attained in Ireland. We do not find evidence of well-developed clusters of the type described by Porter, and our study provides support for some previous critiques of Porter's model. It is concluded that Irish industrial policy does not need to be focused strongly on developing the type of industry clusters described in Porter's model. At the same time, different elements of Porter's model do prove to be relevant and we find that companies in Ireland benefit from being part of some form of wider grouping of connected or related companies and industries, although these groupings can differ from Porter's clusters in significant respects.  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