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   284篇
  免费   3篇
管理学   62篇
人口学   23篇
理论方法论   24篇
综合类   2篇
社会学   137篇
统计学   39篇
  2023年   1篇
  2021年   2篇
  2020年   3篇
  2019年   5篇
  2018年   7篇
  2017年   9篇
  2016年   5篇
  2015年   2篇
  2014年   6篇
  2013年   58篇
  2012年   9篇
  2011年   13篇
  2010年   3篇
  2009年   7篇
  2008年   6篇
  2007年   10篇
  2006年   12篇
  2005年   9篇
  2004年   10篇
  2003年   8篇
  2002年   3篇
  2001年   8篇
  2000年   4篇
  1999年   11篇
  1998年   4篇
  1997年   2篇
  1996年   4篇
  1995年   3篇
  1994年   2篇
  1993年   4篇
  1992年   4篇
  1991年   4篇
  1990年   4篇
  1989年   2篇
  1988年   1篇
  1987年   3篇
  1986年   3篇
  1985年   3篇
  1984年   5篇
  1983年   4篇
  1982年   1篇
  1981年   4篇
  1980年   3篇
  1979年   1篇
  1978年   3篇
  1977年   3篇
  1976年   2篇
  1975年   1篇
  1973年   1篇
  1971年   4篇
排序方式: 共有287条查询结果,搜索用时 703 毫秒
131.
Baker AJ  Wulczyn F  Dale N 《Child welfare》2005,84(3):363-386
This study explores variables associated with length of stay in a child welfare residential treatment center. The study followed three entry cohorts (416 boys) from admission through discharge. The researchers conducted event history analyses to examine the rates of discharge over time and the covariates of length of stay. They conducted analyses by discharge destination (reunified, transferred, or ran away). The results demonstrated that mental health issues slowed down rates of discharge for youth who were reunified or transferred. For children who left by running away, age and prior substance history were associated with faster rates of exit. These results have important public policy implications for improving the application of length of stay variables in planning and treatment.  相似文献   
132.
B.G. Dale  S.G. Hayward 《Omega》1984,12(5):475-484
This paper presents the results of a study of quality circle failures in UK manufacturing companies. A questionnaire survey formed the first part of the investigation, which reveals that the majority of companies which implement quality circles should expect to encounter some form of failure. The first three years of operating a quality circle programme represent the critical period for establishing long-term survival of the programme, whilst in the case of individual circles it is the first 18 months. The results indicate that white collar circles are more difficult to sustain over time than are circles in blue collar areas. The main reasons for circle failure include: rejection of the concept by top management and trade unions; the company restructuring, redundancies and labour turnover; circle leaders lacking time to organise meetings and a lack of co-operation from middle and first-line management. It is pointed out, that despite an average circle failure rate of 20%, there is a high level of satisfaction with quality circles amongst the respondents.  相似文献   
133.
Using data from the Survey of Consumer Finances, this paper documented the positive correlation between the receipt of an inheritance and the expectation of leaving a bequest. Inheritance recipients were found to have a higher probability of planning to leave a bequest relative to households that had not received an inheritance. Conditional on having already received an inheritance, the likelihood of expecting to leave a bequest was even larger for households that anticipated to receive an inheritance in the future. The findings in this paper suggest that inheritances already received or expected to be received may be an important transmission mechanism underlying the bequest motive.  相似文献   
134.
Under mild distributional assumptions,Langberg,Proshane,and Quinzi demonstrated the changing of a dependent competing failure mode system into an independent one.In this paper, their procedure is ultiized to construct dependent failure mode models.The common reliablity models, Exponential,Weibull and Extreme value, are examined with this procedure and an example is discussed.  相似文献   
135.
This study provides quantitative evidence of the professional impact of the Bayesian viewpoint as measured by the percentage of pages devoted to Bayesian topics in econometrics textbooks and leading econometrics and statistics journals.  相似文献   
136.
137.
The economic lot scheduling problem is analysed for the case when the cost of setups, but not their duration, is assumed to be zero. This would be the case when setups are performed by the machine operators, or when management's goal is holding-cost reduction. Theoretical results are presented describing when the common cycle solution of producing one lot of every item every cycle is optimal or near optimal. Computational results using simulated data are then presented which show that the common cycle solution is nearly optimal in a wide range of practical situations.  相似文献   
138.
139.
Karl Polanyi is the author of a modern social science classic, The Great Transformation, as well as a number of well‐known and widely debated essays collected in Trade and Market in the Early Empires and Primitive, Archaic and Modern Economies. These texts were researched and written either during his second exile in 1930s Britain or in wartime or post‐war North America. Not so well known, however, are his Hungarian writings from the 1910s. Until recently, very few of these had been republished or translated, although this is in the process of being rectified [ Gareth Dale (forthcoming) : Karl Polanyi: The Hungarian Writings]. With reference to new translations of his Hungarian writings, to interviews with his daughter, Kari Polanyi‐Levitt, as well as to biographical essays by György Litván, Évá Gábor, Endre Kiss, and Zoltán Horváth, this article explores his early influences, drawing attention in particular to his flirtation with and then violent reaction against philosophical materialism and ‘objectivist’ sociology, his appreciation of Ernst Mach’s positivism, and his adherence to the ‘functional theory’ of contemporary Guild Socialism.  相似文献   
140.
This expository paper deals with the linear estimation of quantiles of location-scale families of distributions using a few selected order statistics.The general theory for the problem i s reviewed for the exact as well as the asymptotic cases.  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