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   9217篇
  免费   290篇
  国内免费   1篇
管理学   1195篇
民族学   42篇
人口学   835篇
丛书文集   33篇
理论方法论   861篇
综合类   144篇
社会学   4409篇
统计学   1989篇
  2023年   61篇
  2020年   140篇
  2019年   211篇
  2018年   224篇
  2017年   327篇
  2016年   229篇
  2015年   201篇
  2014年   227篇
  2013年   1708篇
  2012年   292篇
  2011年   249篇
  2010年   218篇
  2009年   187篇
  2008年   270篇
  2007年   256篇
  2006年   224篇
  2005年   200篇
  2004年   175篇
  2003年   167篇
  2002年   171篇
  2001年   212篇
  2000年   177篇
  1999年   164篇
  1998年   140篇
  1997年   146篇
  1996年   140篇
  1995年   121篇
  1994年   98篇
  1993年   137篇
  1992年   149篇
  1991年   124篇
  1990年   140篇
  1989年   111篇
  1988年   112篇
  1987年   119篇
  1986年   107篇
  1985年   91篇
  1984年   121篇
  1983年   103篇
  1982年   97篇
  1981年   66篇
  1980年   97篇
  1979年   110篇
  1978年   73篇
  1977年   85篇
  1976年   72篇
  1975年   86篇
  1974年   68篇
  1973年   55篇
  1972年   61篇
排序方式: 共有9508条查询结果,搜索用时 875 毫秒
51.
52.
This study concerned the immunological correlates of stress and work. Self reported stress, emotional state, ego-strength, and defensiveness were examined in relation to measures of cellular immunity (T-cell response to Con A and number of T4 and T8 cells) and humoral immunity (concentrations of immunoglobulins and complement components in plasma) in a group of 96 Norwegian female bank employees. The analyses showed that workload, the stress factor with the highest group mean, was associated with number of T-cells, while strain due to body posture during work was related to concentrations of IgM and C3. Further, depression was significantly correlated with IgM concentration and T-cell number, and anxiety with C3 concentration. T-cell activity was the immunological parameter most consistently associated with psychological well-being, showing positive correlations with defensiveness and ego-strength and negative correlations with anxiety and depression. In conclusion, T-cell number and concentrations of IgM and C3 were sensitive to both work-related stress experience and emotional distress. Coping abilities, indicated by the MMPI Ego-strength scale and emotional distress, were reflected in T-cell activity; insufficient coping was associated with low T-cell activity.  相似文献   
53.
54.
This study examined the unique and interactive roles of mother and teacher depressive symptoms in child adjustment in 277 African American single mother‐headed families, as well as whether the associations differed depending on the age and gender of the child. Findings revealed a significant association between maternal depressive symptoms and child depressive symptoms in girls, but not boys. Moreover, the combination of higher levels of both mother and teacher depressive symptoms was associated with the highest level of child depressive symptoms and, for younger children, externalizing symptoms. The importance of considering the multiple social contexts in which children interact is discussed.  相似文献   
55.
56.
57.
58.
This article seeks to define gender issues and explores the significance of these issues for challenging behaviour in the field of learning disability. It is argued that lack of awareness about these issues contributes to the development of challenging behaviour and to difficulties in identifying the needs expressed through these behaviours, whatever their origin. Specific areas examined include models of residential provision for adults, prioritisation of service activities, attribution processes (needs identification), and the sexuality of people with learning disabilities. In each area issues are raised and the implications for service practice defined.  相似文献   
59.
Sociological Forum -  相似文献   
60.
The small sample performance of least median of squares, reweighted least squares, least squares, least absolute deviations, and three partially adaptive estimators are compared using Monte Carlo simulations. Two data problems are addressed in the paper: (1) data generated from non-normal error distributions and (2) contaminated data. Breakdown plots are used to investigate the sensitivity of partially adaptive estimators to data contamination relative to RLS. One partially adaptive estimator performs especially well when the errors are skewed, while another partially adaptive estimator and RLS perform particularly well when the errors are extremely leptokur-totic. In comparison with RLS, partially adaptive estimators are only moderately effective in resisting data contamination; however, they outperform least squares and least absolute deviation estimators.  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