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   9536篇
  免费   143篇
  9679篇
  2020年   130篇
  2019年   182篇
  2018年   181篇
  2017年   223篇
  2016年   308篇
  2015年   192篇
  2014年   183篇
  2013年   2273篇
  2012年   230篇
  2011年   269篇
  2010年   258篇
  2009年   228篇
  2008年   223篇
  2007年   189篇
  2006年   176篇
  2005年   120篇
  2004年   127篇
  2003年   111篇
  2002年   131篇
  2001年   139篇
  2000年   141篇
  1999年   183篇
  1998年   125篇
  1997年   86篇
  1996年   95篇
  1995年   97篇
  1994年   96篇
  1993年   103篇
  1992年   103篇
  1991年   80篇
  1990年   90篇
  1989年   88篇
  1988年   96篇
  1987年   101篇
  1986年   108篇
  1985年   134篇
  1984年   135篇
  1983年   140篇
  1982年   108篇
  1981年   116篇
  1980年   125篇
  1979年   110篇
  1978年   99篇
  1977年   122篇
  1976年   94篇
  1975年   103篇
  1974年   102篇
  1973年   86篇
  1971年   78篇
  1969年   76篇
排序方式: 共有9679条查询结果,搜索用时 0 毫秒
971.
972.
    
  相似文献   
973.
974.
975.
    
The paper examines the value of the South African National Arts Festival (NAF) in the transition to democracy using theories of cultural capital. NAF history from 1974 to 2004 is used to argue that the Festival provided an important arena for the expression of political resistance in the 1980s and, to some degree, continues to do so today. It is concluded that an important part of the value of the arts is their ability to provide a forum for debating the goals and values of society and that individualistic utility theory is not always successful in measuring such social value.  相似文献   
976.
Abstract

Philosopher Alasdair MacIntyre has asserted in several writings that present-day democratic governing institutions fail to incorporate beliefs about the common good and deliberation. However, objections can be raised against MacIntyre's characterization based on research from a new field in political science, Deliberative Democracy. Empirical research in that field shows that the common good and deliberation still do have a place in the United States Congress. It also shows that what James Madison argued at the founding of the country still holds, that representative deliberative bodies aid in transforming arguments for private goods into arguments for the common good; they refine and enlarge the public views.  相似文献   
977.
    
The urban and ceremonial center Khonkho Wankane flourished in the southern Lake Titicaca Altiplano region during the Late Formative prior to the rise of Tiwanaku as a dominant urban center. This site yielded an avifaunal number of identified specimens (NISP) = 631, with a minimum of 26 taxa represented among 539 skeletal elements or fragments. A total of 92 egg shell fragments also were recovered. The avifauna inhabited two major ecological zones: Lake Titicaca, its margins/wetlands and other water margins; and the dry Altiplano grassland (or puna). Lake/wetland taxa include Phoenicopterus chilensis (Chilean flamingo), Nycticorax nycticorax (night heron) and multiple taxa in the Order Anseriformes (ducks, geese, etc.) including Chloephaga melanoptera (Andean goose), Anas georgica (yellow‐billed pintail), A. flavirostris (speckled teal) and Oxyura jamaicensis (Andean ruddyduck). Also present are Fulica ardesiaca (Andean coot), Gallinago andina (puna snipe), Himantopus mexicanus (black‐necked stilt) and Charadrius alticola (puna plover). Puna taxa include Nothoprocta cf. ornata (ornate tinamou), Nothura cf. darwinii (Darwin's nothura), Metropelia sp. (ground doves), Athene cunicularia (burrowing owl), and multiple Passeriformes (songbirds, etc.). Taxa with a cosmopolitan distribution include Falco cf. femoralis (aplomado falcon) and Tyto alba (barn owl). Taphonomic analysis indicates that the avifauna were used in ceremonial contexts, including multiple Falco cf. femoralis burials, and for dietary and possibly tool‐making purposes. Other sources of introduction into the site deposits likely include natural mortality of taxa directly inhabiting the site area. These findings are compared to the avifauna recovered from the Formative site of Chiripa along the Lake Titicaca margin, which included a much higher proportion of lake bird fauna. At Khonkho Wankane, the importance of wetland avifauna may have been enhanced by the alteration of the local environment to include qochas, or artificial reservoirs/ponds, and continued despite reliance upon multiple domesticated plant and mammal species. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
978.
    
Notwithstanding the relative abundance of bioarchaeological evidence of pre‐20th century gunshot wounds discovered at European and American archaeological sites, similar findings in East Asian countries have been very rare. In this study, we report evidence of possible gunshot wounds sustained by two individuals buried in Joseon tombs of Korea. The shapes of the trauma seemed to indicate low‐velocity projectiles, most likely musket balls. To our knowledge, this is the first bioarchaeological report specifically concerning possible gunshot‐wound evidence in East Asian skeletons recovered from archaeological fields. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
979.
    
Occlusal surface wear scores were examined in a sample of 200 Formative period (1500 bc–ad 500) skeletons from the lower Azapa Valley in northwest Chile. Wear rate and plane (angle) were additionally evaluated using a subsample of paired first and second mandibular molars. The Formative period represents the transition from marine foraging to agro‐pastoral dependence in the region, and differences in oral pathology indicate that diet varied by site location (coast vs valley interior) but not by archaeological phase (early vs late). We predicted that occlusal wear would demonstrate similar patterns, resulting from differences in food consistency, and therefore hypothesised that in coastal groups consuming greater quantities of foraged foods, occlusal surfaces should wear faster and exhibit flat molar wear, whereas among valley interior groups consuming greater quantities of agro‐pastoral products, these should wear slower but exhibit more angled molar wear. Heavier posterior tooth wear was identified among coastal residents, but rate and angle of molar occlusal attrition did not differ significantly by location. Heavier overall wear and a steeper molar wear plane were identified during the early phase indicating that food consistency varied somewhat over the course of the Formative period. Overall, the results indicate that, although limited differences in tooth wear exist by site location, wear varied more over time likely reflecting a gradual transition from foraging to agro‐pastoral dependence in the lower Azapa Valley. Although oral health indicators point to differences in dietary investment by location, maintenance of a mixed subsistence economy likely sustained a comparative consistency of foodstuffs. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
980.
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