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   481篇
  免费   16篇
管理学   87篇
民族学   3篇
人口学   19篇
丛书文集   1篇
理论方法论   77篇
综合类   2篇
社会学   255篇
统计学   53篇
  2023年   2篇
  2022年   2篇
  2021年   2篇
  2020年   7篇
  2019年   4篇
  2018年   8篇
  2017年   18篇
  2016年   15篇
  2015年   7篇
  2014年   16篇
  2013年   99篇
  2012年   14篇
  2011年   11篇
  2010年   18篇
  2009年   16篇
  2008年   17篇
  2007年   17篇
  2006年   14篇
  2005年   17篇
  2004年   13篇
  2003年   10篇
  2002年   11篇
  2001年   4篇
  2000年   16篇
  1999年   8篇
  1998年   15篇
  1997年   8篇
  1996年   10篇
  1995年   7篇
  1994年   6篇
  1993年   8篇
  1992年   8篇
  1990年   10篇
  1989年   5篇
  1988年   3篇
  1987年   4篇
  1985年   10篇
  1984年   5篇
  1983年   6篇
  1982年   2篇
  1981年   3篇
  1980年   3篇
  1978年   2篇
  1977年   4篇
  1976年   2篇
  1975年   2篇
  1974年   1篇
  1973年   1篇
  1972年   4篇
  1970年   1篇
排序方式: 共有497条查询结果,搜索用时 15 毫秒
51.
This study reports the friendship experiences and aspirations of adults with intellectual disabilities. The findings of a larger study were reviewed by an expert group of self-advocates with intellectual disability. The expert group confirmed some of the interpretation of the original data and expanded on issues. Friendship is established as an issue of concern among adults with intellectual disability. Consequently, policy-makers and service providers need to be intentional about providing support for friendships. Participants asserted a positive self-identity of being a person with intellectual disability and how this could be a basis for friendship. Also, people with intellectual disability demonstrated how they should be considered experts in their own life experience and how they can be effectively included in the formulation, implementation, analysis and review of research.  相似文献   
52.
Increasing medical technology, expertise and community expectations of health care are leading to an alarming escalation of health costs throughout the world. Many health planners are expressing doubts as to whether quality of health care can be maintained in the present circumstances. It is maintained that the Australian Government's proposal of National Health Insurance is an interim measure, intended to grant hospital and medical expenditure assistance to the entire community, at minimum cost. There is little evidence that the scheme threatens the medical market place, as it is seen at the moment, and a plea is made for productive and constructive discussion of the scheme by the medical profession.  相似文献   
53.
54.
A growing body of literature on the subjective experiences of people with severe mental illness (SMI) reveals the importance of the experience of self. The current study explored how the course of SMI is related to individuals' subjective experience of self. Bimonthly, comprehensive, semi-structured interviews with 43 people who had been discharged from psychiatric hospitalization were conducted over a 1-year period. Qualitative analysis of the data revealed mutual influences between the experience of self and illness over time. Conceptual and clinical implications of the relation between self and illness are discussed.  相似文献   
55.
56.
Although much research on household work has focused on young dual-career couples, there has been speculation that retirement may have a significant effect on the arrangement of household activities in later life. Furthermore, involvement in the household is believed to influence psychological well-being. Available literature, however, provides contradictory evidence regarding the extent to which integration into household activities may either reduce or contribute to stress. The degree to which male involvement in the household in later life was stressful was examined in this research. Data were analyzed from structured interviews with 1165 older, married men who were employed full-time, part-time, or retired. Employed men were significantly less involved in the household than were the retired; however, men participated more in both masculine and feminine tasks if their wives were employed. Involvement in the household was not stressful although the benefits derived from participation varied somewhat by type of task.  相似文献   
57.
An internal pilot with interim analysis (IPIA) design combines interim power analysis (an internal pilot) with interim data analysis (two-stage group sequential). We provide IPIA methods for single df hypotheses within the Gaussian general linear model, including one and two group t tests. The design allows early stopping for efficacy and futility while also re-estimating sample size based on an interim variance estimate. Study planning in small samples requires the exact and computable forms reported here. The formulation gives fast and accurate calculations of power, Type I error rate, and expected sample size.  相似文献   
58.
An inverse Gaussian mixture of Poisson distributions(the P-IG distribution) is considered as a model for species abundance data,, Minimum chi-square and maximum likelihood methods of estimation for the zero-truncated P-IG distribution are developed, Ihe performance of the P-IG distribution is illustrated and discussed for several well-known sets of insect abundance data.  相似文献   
59.
Comment     
We propose a sequential test for predictive ability for recursively assessing whether some economic variables have explanatory content for another variable. In the forecasting literature it is common to assess predictive ability by using “one-shot” tests at each estimation period. We show that this practice leads to size distortions, selects overfitted models and provides spurious evidence of in-sample predictive ability, and may lower the forecast accuracy of the model selected by the test. The usefulness of the proposed test is shown in well-known empirical applications to the real-time predictive content of money for output and the selection between linear and nonlinear models.  相似文献   
60.
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