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   95155篇
  免费   2967篇
  国内免费   5篇
管理学   12941篇
民族学   567篇
人才学   25篇
人口学   7727篇
丛书文集   542篇
教育普及   4篇
理论方法论   9697篇
综合类   2219篇
社会学   45263篇
统计学   19142篇
  2023年   511篇
  2021年   589篇
  2020年   1526篇
  2019年   2238篇
  2018年   2213篇
  2017年   3280篇
  2016年   2469篇
  2015年   2061篇
  2014年   2652篇
  2013年   18932篇
  2012年   2588篇
  2011年   2409篇
  2010年   2107篇
  2009年   2259篇
  2008年   2173篇
  2007年   1990篇
  2006年   2179篇
  2005年   2387篇
  2004年   2242篇
  2003年   1969篇
  2002年   2060篇
  2001年   2196篇
  2000年   1975篇
  1999年   1844篇
  1998年   1578篇
  1997年   1437篇
  1996年   1400篇
  1995年   1407篇
  1994年   1381篇
  1993年   1363篇
  1992年   1399篇
  1991年   1348篇
  1990年   1327篇
  1989年   1168篇
  1988年   1231篇
  1987年   1126篇
  1986年   1015篇
  1985年   1180篇
  1984年   1240篇
  1983年   1112篇
  1982年   1013篇
  1981年   912篇
  1980年   867篇
  1979年   965篇
  1978年   852篇
  1977年   745篇
  1976年   686篇
  1975年   679篇
  1974年   570篇
  1973年   486篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
181.
182.
183.
184.
A NOTE ON EVANESCENT PROCESSES   总被引:1,自引:0,他引:1  
This note examines the connection between μ-invariant measures for the transition function of a continuous-time Markov chain and those of its q-matrix, Q. The major result establishes a necessary and aufficient condition for a convergent μ-invariant measure for Q to be μ-inhant for the minimal transition function, P, under the assumption that P is honest. This corrects Theorem 6 of Vere-Jones (1969) and the first part of Corollary 1 of Pollett (1986), both of which assert that the above conclusion holds in the absence of this condition. The error was pointed out by E.A. van Doom (1991) and the counterexample which be presented provides the basis for the present arguments. In determining where the error occurred in the original proof, we are able to identify a simple sufficient condition for μ-invariance.  相似文献   
185.
A role-reversal in the mother-daughter relationship   总被引:1,自引:1,他引:0  
Psychoanalytic theorists have noted a particular dynamic in the mother-infant relationship in which the emotional needs of the mother predominate. When this situation occurs, the emotional needs of the infant may go unmet, resulting in impaired self-development. Through an integration of the ideas of mainstream psychoanalytic theorists and feminist psychoanalytic thinkers, this paper proposes the idea that, because of the intensity of the mother-daughter relationship, this dynamic may be more prevalent between mothers and daughters than between mothers and sons. A mother-daughter relationship is described in which the mother comes to depend on her daughter for emotional attunement and response, and the mother's selfobject needs predominate. As a consequence, the daughter is unable to develop a cohesive sense of self and experiences difficulty in achieving separation. Two clinical reports are presented to illustrate the way in which this mother-daughter dynamic manifests itself in the patient's life and in the therapeutic relationship. A negative transference dynamic is described resulting from these patient's fear of duplicating their relationship with their mothers in the therapeutic relationship by having to meet the selfobject needs of the therapist.  相似文献   
186.
The authors present three educational approaches designed to demystify the writing process and to support better writing skills among family therapists. One framework is an academic course in professional writing, another is a writing seminar for family therapy and physician trainees within a medical school setting, and the third is a 2-hour continuing education writing workshop for family therapists. Each is replicable within a variety of settings.  相似文献   
187.
We investigate wage differentials between ethnic groups in Israel, proposing a new methodology and an illustration based on the latest Israeli census. By using separate wage equations for the various occupations, our methodology allows us to decompose the wage differential into three components: one reflecting human capital differences; one reflecting wage discrimination; and a third indicating occupational segregation. We find that 70 percent of the wage gap is due to segregation, 26 percent to wage discrimination and only 4 percent to human capital differences. Evidence is also found for the existence of duality in the Israeli labor market.  相似文献   
188.
189.
190.
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