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   91489篇
  免费   3046篇
  国内免费   3篇
管理学   12616篇
民族学   564篇
人才学   27篇
人口学   7044篇
丛书文集   526篇
教育普及   1篇
理论方法论   9699篇
综合类   2126篇
社会学   42928篇
统计学   19007篇
  2023年   526篇
  2021年   586篇
  2020年   1544篇
  2019年   2289篇
  2018年   2131篇
  2017年   3227篇
  2016年   2441篇
  2015年   2108篇
  2014年   2686篇
  2013年   19176篇
  2012年   2440篇
  2011年   2267篇
  2010年   2033篇
  2009年   2238篇
  2008年   2105篇
  2007年   1926篇
  2006年   2150篇
  2005年   2305篇
  2004年   2220篇
  2003年   1945篇
  2002年   2056篇
  2001年   2019篇
  2000年   1791篇
  1999年   1679篇
  1998年   1518篇
  1997年   1362篇
  1996年   1317篇
  1995年   1330篇
  1994年   1294篇
  1993年   1285篇
  1992年   1264篇
  1991年   1195篇
  1990年   1173篇
  1989年   1015篇
  1988年   1108篇
  1987年   989篇
  1986年   891篇
  1985年   1066篇
  1984年   1119篇
  1983年   1008篇
  1982年   932篇
  1981年   859篇
  1980年   823篇
  1979年   866篇
  1978年   777篇
  1977年   699篇
  1976年   653篇
  1975年   627篇
  1974年   521篇
  1973年   432篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
152.
The hypothesis that irritability and contingency detection are negatively correlated was examined in thirty‐one 6‐month‐old infants. Observation and maternal report‐based assessments of irritability were correlated with both a criterion score and a continuous score of contingency detection. Results indicated that greater irritability in infants was associated with lower contingency detection scores. Discussion focuses on identifying processes by which the 2 constructs may be associated.  相似文献   
153.
Editorial     
Ohne Zusammenfassung
Editorial
  相似文献   
154.
155.
156.
The construct, family resilience, has been defined and applied very differently by those who are primarily clinical practitioners and those who are primarily researchers in the family field. In thisarticle, the family resilience perspective is integrated with conceptual definitions from family stress theory using the Family Adjustment and Adaptation Response (FAAR) Model in an effort to clarify distinctions between family resiliency as capacity and family resilience as a process. The family resilience process is discussed in terms of (a) the meaning of significant risk exposure (vs. the normal challenges of family life) and (b) the importance of making conceptual and operational distinctions between family system outcomes and family protective processes. Recommendations for future family resilience research are discussed.  相似文献   
157.
Recent research has demonstrated that Democrats and Republicansare divided along religious lines–98) confirm that thelink between religiosity and Republican Party identificationis stronger among younger than older voters.  相似文献   
158.
159.
Over the years, noteworthy social workers have been interviewed for the Clinical Social Work Journal. This article features an interview with Joyce Edward who is recognized for her many extraordinary contributions to clinical social work. Joyce has co-written or co-edited three exceptional books for the social work clinician, she has been an esteemed teacher and a vocal activist for quality mental health care. In this interview Joyce reflects on family influences, her work as a social caseworker, the psychoanalytic luminaries with whom she trained, her concerns about the clinical education of today's social work students, and finally, her perspective on managed mental health care.  相似文献   
160.
We study experimentally a standard four-player Hotelling location game with a uniform density of consumers and inelastic demand. The pure strategy Nash equilibrium configuration consists of two firms located at one quarter of the "linear city," and the other two at three quarters. We do not observe convergence to such an equilibrium. In our experimental data we find three clusters. Besides the direct proximity of the two equilibrium locations, this concerns the focal midpoint. Moreover, we observe that whereas this midpoint appears to become more notable over time, other focal points fade away. We explain how these observations are related to best-response dynamics, and to the fact that the players rely on best-responses in particular when they are close to the equilibrium configuration.  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