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   14331篇
  免费   670篇
  国内免费   5篇
  2020年   183篇
  2019年   217篇
  2018年   351篇
  2017年   313篇
  2016年   328篇
  2015年   243篇
  2014年   290篇
  2013年   1184篇
  2012年   447篇
  2011年   505篇
  2010年   308篇
  2009年   272篇
  2008年   418篇
  2007年   384篇
  2006年   367篇
  2005年   309篇
  2004年   283篇
  2003年   278篇
  2002年   298篇
  2001年   506篇
  2000年   468篇
  1999年   333篇
  1998年   146篇
  1996年   132篇
  1995年   135篇
  1992年   252篇
  1991年   265篇
  1990年   246篇
  1989年   240篇
  1988年   239篇
  1987年   216篇
  1986年   214篇
  1985年   215篇
  1984年   197篇
  1983年   147篇
  1982年   154篇
  1981年   121篇
  1979年   188篇
  1978年   124篇
  1977年   121篇
  1975年   169篇
  1974年   190篇
  1973年   208篇
  1972年   184篇
  1971年   165篇
  1970年   163篇
  1969年   156篇
  1968年   208篇
  1967年   173篇
  1966年   170篇
排序方式: 共有10000条查询结果,搜索用时 78 毫秒
971.
972.
A matching method proposed by Dr. C. E. Stuart is presented in some detail and the essentials for a test of significance are derived. This method differs from the older matching methods in that partial credit is allowed for a near miss. A slight variation of the method permits the matching of one item withM sets ofn traits.  相似文献   
973.
974.
975.
976.
977.
Stress, self-esteem, and suicidal ideation in late adolescents   总被引:6,自引:0,他引:6  
Wilburn VR  Smith DE 《Adolescence》2005,40(157):33-45
The relationships among stress, self-esteem, and suicidal ideation in late adolescents were examined in a group of college students. Multiple regression analysis indicated that both stress and self-esteem were significantly related to suicidal ideation; low self-esteem and stressful life events significantly predicted suicidal ideation. The hypothesis that self-esteem would moderate the effects of life stressors on suicidal ideation was supported at the .06 level. A significant minority of the sample indicated having thoughts severe enough to be classified as clinical suicidal ideation. In general, participants who had experienced negative life events in the 6 to 12 months prior to participating in the study had lower self-esteem than those who had similar stresses within the prior six months. However, the opposite was true for clinical suicidal ideators; those who experienced negative life stressors recently had lower self-esteem than those who experienced negative life events six months to a year in the past.  相似文献   
978.
979.
980.
Liu C  Munakata T  Onuoha FN 《Adolescence》2005,40(160):831-845
The mental health of the only-child continues to generate interest in research literature. The present study examines the issue in China, where the one-child phenomenon is highest due to deliberate government policy. Subjects are 299 and 333 students in two high-rank high schools in urban Harebin and rural Qing an Xian, respectively (mean age = 17.2 years). Both locations are in the Heilongjiang Sheng Province of China. Results showed that urban only-children experienced significantly lower love awareness from family, higher neurotic and social depression, trait anxiety, perceived stressors, and interpersonal dependency than did urban non-only children. No significant differences were found in the rural only- and non-only children. Low love awareness from parents and peers was associated with high negative mental health conditions in the children. Low love awareness also precipitated perceived stressors which resulted in negative mental health in the covariance structure analysis.  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