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   9092篇
  免费   243篇
  国内免费   1篇
管理学   1226篇
民族学   35篇
人才学   3篇
人口学   783篇
丛书文集   37篇
理论方法论   798篇
综合类   140篇
社会学   4274篇
统计学   2040篇
  2020年   134篇
  2019年   191篇
  2018年   197篇
  2017年   288篇
  2016年   199篇
  2015年   179篇
  2014年   212篇
  2013年   1677篇
  2012年   289篇
  2011年   244篇
  2010年   221篇
  2009年   184篇
  2008年   265篇
  2007年   266篇
  2006年   215篇
  2005年   184篇
  2004年   169篇
  2003年   148篇
  2002年   174篇
  2001年   204篇
  2000年   183篇
  1999年   171篇
  1998年   154篇
  1997年   137篇
  1996年   142篇
  1995年   124篇
  1994年   92篇
  1993年   144篇
  1992年   155篇
  1991年   134篇
  1990年   141篇
  1989年   119篇
  1988年   114篇
  1987年   122篇
  1986年   106篇
  1985年   90篇
  1984年   122篇
  1983年   107篇
  1982年   101篇
  1981年   75篇
  1980年   99篇
  1979年   107篇
  1978年   75篇
  1977年   85篇
  1976年   73篇
  1975年   88篇
  1974年   70篇
  1973年   56篇
  1972年   61篇
  1971年   53篇
排序方式: 共有9336条查询结果,搜索用时 15 毫秒
841.
This paper examines if ‘naming and shaming’ is an effective tool to increase accountability in school dropout for cities with disadvantaged student populations. It argues that a comparison with other cities might be unfair if regional and population characteristics differ. It discusses the example of two Dutch new towns. The new town policy deliberately attracted low- and medium-income households in the past, such that today the population of those cities differs from other cities. We use a matching analysis to account for observed differences in population and regional characteristics. The results point out that ‘naming and shaming’ may be a dangerous policy to increase accountability: early school leaving differences are driven, to a large extent, by observed differences in population and regional characteristics.  相似文献   
842.
843.
This paper analyzes the prospects for raising domestic saving rates to permit increased investment and/or reduced dependence on foreign-capital inflow in Latin America. We analyze the question of rising saving rates by applying a random-coefficients approach: treating the parameters estimated in time-series analysis for individual countries as observations drawn from an international cross-section of savings behavior. Correlation analysis is then applied to clarify the conditions associated with international differences in savings parameters across a sample of 21 Latin American countries.  相似文献   
844.
This paper reports the first cross-study competitive test of thecore solution in side-payment games where the core is nonempty and nonunique (i.e., larger than a single point). The core was tested against five alternative theories including the Shapley value, the disruption nucleolus, the nucleolus, the 2-center, and the equality solution. A generalized Euclidean distance metric which indexes the average distance between an observed payoff vector and the entire set of predicted payoff vectors (Bonacich, 1979) was used as the measure of goodness-of-fit. Analysis of data assembled from six previously reported studies (encompassing a total of 1,464 observations over 56 3-person and 4-person side-payment games) showed the core to predict less accurately than the Shapley value, disruption nucleolus, and nucleolus solutions (p < 0.01). These findings are consistent with previous empirical results that show the core to have a low level of predictive accuracy in side-payment games.This research was supported by grants SOC-7726932 and SES-8015528 from the National Science Foundation. Data analysis was performed at the Madison Academic Computing Center.  相似文献   
845.
846.
847.
The family educator works with the client's family members to help in their understanding of their ill relative and to assist with managing the stress of the caregiver role. Families come to understand that they can join forces with the clinical team in helping their relative engage in a trial of treatment. Each treatment recommendation is explained to the family and decisions are arrived at by consensus through partnership meetings. Role modeling effective interaction approaches and providing assistance in generating alternative solutions to problematic situations are important functions of the family educator.  相似文献   
848.
849.
Using the first (1987-1988) and second (1992-1994) waves of the National Survey of Families and Households, this study examines the concurrent and longitudinal influences of interparental conflict and parent-child conflict on child and adolescent adjustment. Analyses focus on 542 intact families, each with a randomly selected focal child aged 5 to 11 at time 1 and aged 10 to 17 at time 2. Results indicate that both parent-child and parent-adolescent conflict are critical predictors of children's and adolescents'socioemotional adjustment. Interparental conflict, by contrast, is less important for adjustment in middle and late childhood as well as in adolescence. The findings extend previous research by suggesting that the salience and threat of interparental conflict subside as children make the transition into adolescence.  相似文献   
850.
We consider the method of distance sampling described by Buckland, Anderson, Burnham and Laake in 1993. We explore the properties of the methodology in simple cases chosen to allow direct and accessible comparisons of distance sampling in the design- and model-based frameworks. In particular, we obtain expressions for the bias and variance of the distance sampling estimator of object density and for the expected value of the recommended analytic variance estimator within each framework. These results enable us to clarify aspects of the performance of the methodology which may be of interest to users and potential users of distance sampling.  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