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   1580篇
  免费   33篇
管理学   90篇
民族学   10篇
人口学   141篇
丛书文集   6篇
理论方法论   185篇
综合类   9篇
社会学   1078篇
统计学   94篇
  2024年   6篇
  2023年   5篇
  2021年   11篇
  2020年   45篇
  2019年   45篇
  2018年   53篇
  2017年   72篇
  2016年   41篇
  2015年   35篇
  2014年   36篇
  2013年   317篇
  2012年   50篇
  2011年   60篇
  2010年   36篇
  2009年   34篇
  2008年   46篇
  2007年   51篇
  2006年   56篇
  2005年   55篇
  2004年   72篇
  2003年   33篇
  2002年   44篇
  2001年   37篇
  2000年   12篇
  1999年   24篇
  1998年   19篇
  1997年   21篇
  1996年   11篇
  1995年   12篇
  1994年   17篇
  1993年   18篇
  1992年   10篇
  1991年   21篇
  1990年   19篇
  1989年   18篇
  1988年   14篇
  1987年   20篇
  1986年   12篇
  1985年   12篇
  1984年   13篇
  1983年   16篇
  1982年   7篇
  1981年   10篇
  1980年   9篇
  1978年   11篇
  1976年   9篇
  1975年   4篇
  1974年   5篇
  1973年   5篇
  1971年   4篇
排序方式: 共有1613条查询结果,搜索用时 15 毫秒
991.
This article examines the demand by nonprofits in the United States for foreign professionals to fill a variety of specialized and managerial positions on a temporary basis. Our study contributes to understanding the demand side of the trend toward a more contingent workforce. We test predictors of nonprofit employers' pursuit of foreign labor for professional expertise and show an association between strategy to insource foreign labor and organizational resource level, mission, occupational need, and wage offer. Our findings suggest that government visa policies and practices affect labor pools for nonprofit organizations. Given that our study reveals varied interest by nonprofits in pursuing temporary foreign professionals, we end with a brief review and discussion of how the use of temporary and foreign professionals may influence the dynamics of nonprofit organizations and suggest additional research questions.  相似文献   
992.
This study employed the organization–public relationship scale to measure member perceptions of an art museum. Analysis shows member perceptions of the museum–public relationship differentiated members likely to continue their membership from those likely to discontinue their membership with the museum. This study confirms the appropriateness of using the organization–public relationship scale with museums.  相似文献   
993.
We used the National Longitudinal Study of Adolescent Health (Add Health) to examine the social and psychological well-being of multiracial adolescents. Using two different measures of multiracial identity, we investigated the ways in which these adolescents compare to their monoracial counterparts on five outcomes: depression, seriously considering suicide, feeling socially accepted, feeling close to others at school, and participating in extracurricular activities. We found that multiracial adolescents as a group experience some negative outcomes compared to white adolescents, but that this finding is driven by negative outcomes for those with American Indian and white heritage. We found no consistent evidence, however, that multiracial adolescents as a group face more difficulty in adolescence than members of other racial and ethnic minority groups. The results were similar, whether the multiracial population is defined by self-identification or by their parents' racial identifications.  相似文献   
994.
995.
996.
In bioinformatics application, the estimation of the starting and ending points of drop-down in the longitudinal data is important. One possible approach to estimate such change times is to use the partial spline model with change points. In order to use estimate change time, the minimum operator in terms of a smoothing parameter has been widely used, but we showed that the minimum operator causes large MSE of change point estimates. In this paper, we proposed the summation operator in terms of a smoothing parameter, and our simulation study showed that the summation operator gives smaller MSE for estimated change points than the minimum one. We also applied the proposed approach to the experiment data, blood flow during photodynamic cancer therapy.  相似文献   
997.
Over the last 20 years there has been an increasing focus on quality management (QM) as a distinct and necessary element of any competitive business organization. Although quality has always been a concern of national statistical agencies, quality improvements within such organizations have been achieved through a variety of different independent initiatives rather than through concerted effort under the umbrella of a formal “QM program.” This article addresses the application of QM to a national statistical agency. The essential elements of QM are reviewed from the perspective of a statistical agency. Ongoing quality initiatives at Statistics Canada and at other statistical agencies are described. The article concludes by identifying some of the major considerations in developing a QM strategy for Statistics Canada.  相似文献   
998.
999.
1000.
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