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   4739篇
  免费   191篇
  2020年   53篇
  2019年   101篇
  2018年   120篇
  2017年   166篇
  2016年   156篇
  2015年   109篇
  2014年   120篇
  2013年   1625篇
  2012年   100篇
  2011年   129篇
  2010年   96篇
  2009年   117篇
  2008年   96篇
  2007年   93篇
  2006年   80篇
  2005年   75篇
  2004年   68篇
  2003年   65篇
  2002年   77篇
  2001年   60篇
  2000年   65篇
  1999年   45篇
  1998年   69篇
  1997年   76篇
  1996年   40篇
  1995年   42篇
  1994年   39篇
  1993年   40篇
  1992年   35篇
  1991年   28篇
  1990年   37篇
  1989年   22篇
  1988年   35篇
  1987年   42篇
  1986年   40篇
  1985年   50篇
  1984年   65篇
  1983年   60篇
  1982年   64篇
  1981年   45篇
  1980年   48篇
  1979年   58篇
  1978年   46篇
  1977年   58篇
  1976年   45篇
  1975年   41篇
  1974年   23篇
  1973年   29篇
  1972年   24篇
  1971年   16篇
排序方式: 共有4930条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.
85.
86.
A longitudinal approach to migration behavior makes it possible to identify a sufficient condition for positive associations between rates of in-migration and rates of out-migration in the same regions. The longitudinal approach centers on the intervals of time that individuals spend in a region, and these intervals can be analyzed in terms of probability distributions or the equivalent hazard functions or survivor functions. Differences in the distributions of these intervals between subpopulations whose residence in a region begins with in-migration and subpopulations whose residence begins with other events are sufficient for temporal variations in rates of in-migration to produce variations in out-migration rates in subsequent periods of time. Tests for such differences are performed using data from the National Longitudinal Survey of Youth.  相似文献   
87.
Computation and usage of my neoclassical economic-base marginal multiplier formula (Merrifield, 1987) is simplified. The note points out the economic parameters that must be estimated with some care and for which rough approximations suffice. It also indicates when the size of the multiplier will be significantly affected by the source of the exogenous stimulus (factor- or output-price change). The traditional bifurcation effort must be supplemented with careful estimates of only a small subset of the other parameters. For most of the simulated parameter combinations, the multiplier based on exogenous factor-price changes differed from the multiplier based on output-price changes by less than 10 percent.  相似文献   
88.
The Maisin women of northeastern Papua New Guinea are among the last coastal Papuans to tattoo their faces. This article first describes the techniques and social process of Maisin tattooing. We then examine the resilience of the custom in light of changes in puberty rites and notions of gender. We argue that these contexts have lost their cultural salience as a result of the Maisins' incorporation into the larger Papua New Guinea society. Tattooing has acquired new significance as a marker of cultural identity in a multicultural setting and as a sign of the Maisin people's commercial success as makers of indigenous art.  相似文献   
89.
90.
Peter Coaldrake, Working the System: Government in Queensland. University of Queensland Press, St Lucia, 1989, pp.l85.$12.95 (paper)

Phil Dickie, The Road to Fitzgerald: Revelations of Corruption Spanning Four Decades, University of Queensland Press, St Lucia, 1988. pp.293. $9.95 (paper); second edition, The Road to Fitzgerald ana Beyond, University of Queensland Press, St Lucia, 1989, pp.337. $12.95 (paper)

Evan Whitton, The Hillbilly Dictator: Australia's Police State, Australian Broadcasting Corporation Enterprises, Crows Nest, NSW, 1989, pp. 197. $16.99 (paper)

Ross Fitzgerald and Harold Thornton, Labor in Queensland: From the 1880s to 1988. University of Queensland Press, St Lucia, 1989, pp.422. $34.95 (paper)

Peter Charlton, State of Mind: Why Queensland is Different, Methuen Haynes, North Ryde, second edition 1987, pp. 263. $12.95 (paper)  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