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   2530篇
  免费   128篇
  2023年   10篇
  2020年   39篇
  2019年   56篇
  2018年   79篇
  2017年   91篇
  2016年   100篇
  2015年   80篇
  2014年   57篇
  2013年   796篇
  2012年   82篇
  2011年   89篇
  2010年   106篇
  2009年   88篇
  2008年   71篇
  2007年   99篇
  2006年   85篇
  2005年   35篇
  2004年   48篇
  2003年   38篇
  2002年   44篇
  2001年   35篇
  2000年   24篇
  1999年   25篇
  1998年   28篇
  1997年   20篇
  1996年   12篇
  1995年   23篇
  1994年   17篇
  1993年   19篇
  1992年   18篇
  1991年   13篇
  1990年   17篇
  1989年   16篇
  1988年   23篇
  1987年   25篇
  1986年   13篇
  1985年   23篇
  1984年   16篇
  1983年   17篇
  1982年   18篇
  1981年   15篇
  1980年   21篇
  1979年   12篇
  1978年   13篇
  1977年   11篇
  1976年   9篇
  1975年   11篇
  1972年   11篇
  1971年   6篇
  1970年   9篇
排序方式: 共有2658条查询结果,搜索用时 0 毫秒
81.
82.
83.
Geographic Isolation: Origins of the Guns, Germs, and Steel Model   总被引:1,自引:0,他引:1  
Mark Cowell 《对极》2003,35(4):807-812
  相似文献   
84.
85.
Abstract

This paper discusses the understanding of “Common Good” that has been used by the Church of England, especially over the last five years. It suggests that its implicit universalism and identification of Christian morality with the ethical norms for the nation is premised on an understanding of the role of the Church which is no longer realistic. After a brief discussion of the latest statistics for church attendance and a comparison with other national churches in Northern Europe, I suggest that the Church of England is a “small church” and even that Christians constitute a religious minority. This means that the pursuit of the “Common Good” as defined by the church may simply be a piece of nostalgic longing for the time of the “big church.” The recent exclusions for the churches on same-sex marriage legislation indicate that the gap between most of the churches and the wider society. Rather than defining the common good, I suggest that in a pluralist society the churches which recognize their limited role will need to build alliances and common causes with other groups, both religious and secular.  相似文献   
86.
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   
87.
88.
89.
90.
This article introduces latent trajectory models (LTMs), an approach often employed in social sciences to handle longitudinal data, to the arena of GIScience, particularly space‐time analysis. Using the space‐time data collected at county level for the whole United States through webpage search on the keyword “climate change,” we show that LTMs, when combined with eigenvector filtering of spatial dependence in data, are very useful in unveiling temporal trends hidden in such data: the webpage‐data derived popularity measure for climate change has been increasing from December 2011 to March 2013, but the increase rate has been slowing down. In addition, LTMs help reveal potential mechanisms behind observed space‐time trajectories through linking the webpage‐data derived popularity measure about climate change to a set of socio‐demographic covariates. Our analysis shows that controlling for population density, greater drought exposure, higher percent of people who are 16 years old or above, and higher household income are positively predictive of the trajectory slopes. Higher percentages of Republicans and number of hot days in summer are negatively related to the trajectory slopes. Implications of these results are examined, concluding with consideration of the potential utility of LTMs in space‐time analysis and more generally in GIScience.  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