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   1624篇
  免费   90篇
管理学   215篇
民族学   14篇
人口学   147篇
丛书文集   4篇
理论方法论   207篇
综合类   10篇
社会学   1027篇
统计学   90篇
  2023年   20篇
  2022年   5篇
  2021年   10篇
  2020年   38篇
  2019年   57篇
  2018年   54篇
  2017年   80篇
  2016年   55篇
  2015年   48篇
  2014年   70篇
  2013年   244篇
  2012年   95篇
  2011年   85篇
  2010年   62篇
  2009年   60篇
  2008年   56篇
  2007年   59篇
  2006年   65篇
  2005年   45篇
  2004年   47篇
  2003年   54篇
  2002年   63篇
  2001年   27篇
  2000年   28篇
  1999年   30篇
  1998年   26篇
  1997年   17篇
  1996年   24篇
  1995年   22篇
  1994年   11篇
  1993年   21篇
  1992年   18篇
  1991年   13篇
  1990年   11篇
  1989年   5篇
  1988年   8篇
  1987年   6篇
  1986年   6篇
  1985年   4篇
  1984年   7篇
  1983年   6篇
  1982年   11篇
  1981年   7篇
  1980年   7篇
  1978年   4篇
  1977年   4篇
  1975年   5篇
  1972年   3篇
  1971年   2篇
  1969年   2篇
排序方式: 共有1714条查询结果,搜索用时 31 毫秒
1.
This article highlights three dimensions to understanding children's well‐being during and after parental imprisonment which have not been fully explored in current research. A consideration of ‘time’ reveals the importance of children's past experiences and their anticipated futures. A focus on ‘space’ highlights the impact of new or altered environmental dynamics. A study of ‘agency’ illuminates how children cope within structural, material and social confines which intensify vulnerability and dependency. This integrated perspective reveals important differences in individual children's experiences and commonalities in broader systemic and social constraints on prisoners’ children. The paper analyses data from a prospective longitudinal study of 35 prisoners’ children during and after their (step) father's imprisonment to illustrate the arguments.  相似文献   
2.
As part of the celebration of the 40th anniversary of the Society for Risk Analysis and Risk Analysis: An International Journal, this essay reviews the 10 most important accomplishments of risk analysis from 1980 to 2010, outlines major accomplishments in three major categories from 2011 to 2019, discusses how editors circulate authors’ accomplishments, and proposes 10 major risk-related challenges for 2020–2030. Authors conclude that the next decade will severely test the field of risk analysis.  相似文献   
3.
4.
ABSTRACT

The cost and time of pharmaceutical drug development continue to grow at rates that many say are unsustainable. These trends have enormous impact on what treatments get to patients, when they get them and how they are used. The statistical framework for supporting decisions in regulated clinical development of new medicines has followed a traditional path of frequentist methodology. Trials using hypothesis tests of “no treatment effect” are done routinely, and the p-value < 0.05 is often the determinant of what constitutes a “successful” trial. Many drugs fail in clinical development, adding to the cost of new medicines, and some evidence points blame at the deficiencies of the frequentist paradigm. An unknown number effective medicines may have been abandoned because trials were declared “unsuccessful” due to a p-value exceeding 0.05. Recently, the Bayesian paradigm has shown utility in the clinical drug development process for its probability-based inference. We argue for a Bayesian approach that employs data from other trials as a “prior” for Phase 3 trials so that synthesized evidence across trials can be utilized to compute probability statements that are valuable for understanding the magnitude of treatment effect. Such a Bayesian paradigm provides a promising framework for improving statistical inference and regulatory decision making.  相似文献   
5.
This study examined racial differences between mistreated and abused older African American and Caucasian men. The racial and gender differences of their perpetrators were also examined. Data from a single elder abuse provider agency in the State of Illinois were analyzed. Differences with respect to physical abuse, emotional abuse, physical neglect, deprivation, confinement, and financial exploitation were examined, as were demographic characteristics and limitations of victims and abusers.  相似文献   
6.
7.
8.
We propose methods for monitoring the residuals of a fitted ARIMA or an autoregressive fractionally integrated moving average (ARFIMA) model in order to detect changes of the parameters in that model. We extend the procedures of Box & Ramirez (1992) and Ramirez (1992) and allow the differencing parameter, d to be fractional or integer. Test statistics are approximated by Wiener processes. We carry out simulations and also apply our method to several real time series. The results show that our method is effective for monitoring all parameters in ARFIMA models.  相似文献   
9.
10.
This research investigates gender differences in employer-sponsored medical fringe benefits: health insurance, dental insurance, sick leave, life insurance, and eye care coverage. Using data from a nationally representative sample of workers in the United States, human capital and structural theoretical approaches are drawn upon to explain the receipt of these benefits. The data suggest (a) men were more likely than women to receive each medical benefits from their employer; (b) occupational conditions largely account for the gender differences in coverage; (c) structural conditions of the occupation were more likely to predict the receipt of employer-sponsored medical benefits than were human capital attributes; (d) hazardous working conditions were not compensated for with medical benefits, with the exception of eye care coverage; and (e) gender did influence the relationship between several occupational conditions and benefit coverage.  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