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   25969篇
  免费   699篇
  国内免费   2篇
管理学   3690篇
民族学   98篇
人才学   1篇
人口学   2451篇
丛书文集   107篇
教育普及   2篇
理论方法论   2324篇
现状及发展   1篇
综合类   366篇
社会学   12431篇
统计学   5199篇
  2021年   139篇
  2020年   372篇
  2019年   516篇
  2018年   580篇
  2017年   823篇
  2016年   620篇
  2015年   482篇
  2014年   612篇
  2013年   4294篇
  2012年   833篇
  2011年   784篇
  2010年   606篇
  2009年   513篇
  2008年   638篇
  2007年   648篇
  2006年   619篇
  2005年   573篇
  2004年   512篇
  2003年   486篇
  2002年   540篇
  2001年   664篇
  2000年   660篇
  1999年   575篇
  1998年   445篇
  1997年   412篇
  1996年   432篇
  1995年   398篇
  1994年   356篇
  1993年   397篇
  1992年   455篇
  1991年   421篇
  1990年   396篇
  1989年   374篇
  1988年   378篇
  1987年   347篇
  1986年   321篇
  1985年   352篇
  1984年   366篇
  1983年   337篇
  1982年   296篇
  1981年   238篇
  1980年   248篇
  1979年   285篇
  1978年   243篇
  1977年   229篇
  1976年   194篇
  1975年   230篇
  1974年   179篇
  1973年   162篇
  1972年   140篇
排序方式: 共有10000条查询结果,搜索用时 421 毫秒
281.
It is shown that when a parameter lying in a sufficiently small interval is to be estimated in a family of uniform distributions, a two point prior is least favourable under squared error loss. The unique Bayes estimator with respect to this prior is minimax. The Γ-minimax estimator is derived for sets Γ of priors consisting of all priors that give fixed probabilities to two specified subintervals of the parameter space if a two point prior is least favourable in Γ.  相似文献   
282.
1. It is important to examine client and staff satisfaction with the RN case management (RNCM) model to enhance the quality of care in psychiatric settings. 2. Ninety-two percent of clients surveyed ranked the RNCM care as "excellent" or "above average." Clients valued most the humanistic role of the RNCM and repeatedly commented on the importance of the nurse being caring, genuine, and supportive. 3. RNCMs expressed high satisfaction with their role, which they described as collaborative with the psychiatrist, yet also professional and independent. Psychiatrists expressed a high degree of confidence that clients were receiving excellent care by competent nurse professionals.  相似文献   
283.
1. As the nurse-patient relationship evolves through a series of ongoing interactions, both participants become "known" and stir in each other a range of positive and negative emotional reactions. 2. When working with severely psychologically disturbed patients, the nurse's affective and behavioral response can be valuable clues to understanding the patient's early experiences that contribute to the pattern of relatedness and to the formulation of change, enhancing therapeutic interactions. 3. The goals of the countertransference peer supervision group were to recognize unconscious countertransference reactions; unravel the origin and meaning of those countertransference reactions; and collaboratively develop therapeutic nursing interventions.  相似文献   
284.
285.
286.
287.
Between 1987 and 1990, the Robert Wood Johnson Foundation funded six service credit banking demonstration programs among the elderly in which participants delivered services in return for credits, entitling them to later service. This evaluation of the demonstrations found that these six sites successfully attracted elders for the delivery of household support services to a relatively old, frail population with potentially limited social networks. Evidence on the significance of the "credit" in attracting volunteers was mixed, but the programs have attracted new volunteers, and have not substituted for other volunteer activities. Program development has entailed considerable staff investment in volunteer support; programs are better understood as community membership organizations than as mechanical exchanges.  相似文献   
288.
289.
A paradox currently exists regarding legal sports gambling in North America: various forms are flourishing in Nevada, Oregon, and several Canadian provinces, while at the same time the United States Congress is conducting hearings on two bills that would prohibit any new state-sponsored sports gambling initiatives. This study examines the issue of why some jurisdictions are enthusiastic about legal sports gambling while others strongly resist the concept. In reviewing these divergent viewpoints, a case study of the newfledged Canadian Sport Select gambling format is presented. This example is used to highly the perils and payoffs of a typical state-sponsored sports gambling scheme, with a view toward broadening our understanding of how they work and how they might be fairer to the public.  相似文献   
290.
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