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   35928篇
  免费   1158篇
  国内免费   14篇
  2019年   372篇
  2018年   441篇
  2017年   498篇
  2016年   586篇
  2015年   451篇
  2014年   515篇
  2013年   2889篇
  2012年   954篇
  2011年   1015篇
  2010年   661篇
  2009年   666篇
  2008年   943篇
  2007年   929篇
  2006年   852篇
  2005年   804篇
  2004年   759篇
  2003年   778篇
  2002年   782篇
  2001年   830篇
  2000年   846篇
  1999年   616篇
  1998年   410篇
  1997年   381篇
  1992年   609篇
  1991年   573篇
  1990年   565篇
  1989年   570篇
  1988年   518篇
  1987年   537篇
  1986年   566篇
  1985年   613篇
  1984年   538篇
  1983年   524篇
  1982年   435篇
  1981年   460篇
  1980年   387篇
  1979年   557篇
  1978年   472篇
  1977年   432篇
  1976年   413篇
  1975年   544篇
  1974年   587篇
  1973年   623篇
  1972年   510篇
  1971年   476篇
  1970年   437篇
  1969年   463篇
  1968年   566篇
  1967年   515篇
  1966年   505篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
971.
972.
973.
974.
975.
976.
977.
Three iterative techniques for neutralizing the effects of stimulus bias in category rating experiments were examined with a wide variety of stimulus variables. Under all conditions examined, the iterative techniques quickly led to a stable category estimation. This result was obtained for stimulus variables with strong measurement properties, e.g. length and weight; for stimulus variables with only ordinal properties, e.g. emery papers; and for stimulus variables with only nominal properties, where an ordered set is obtained only in the course of the category scaling, e.g. female profiles.  相似文献   
978.
The Sheltered Care Environment Scale (SCES) was developed primarily to measure social climate as an attribute of a setting. As such, the SCES was designed to maximize differences between facilities and minimize differences among individuals within a setting. However, Smith and Whitbourne (1990) assessed the validity of the SCES as a measure of individual differences in perceptions of a shared environment. Moreover, they redefined the content coverage of 2 of the SCES subscales (Independence and Physical Comfort), to encompass attributes the SCES is not intended to measure. In general, preliminary evidence indicates that the SCES subscales provide reasonably reliable and valid indices of the social climate of group residential facilities.  相似文献   
979.
Life stressors, social resources, and late-life problem drinking   总被引:2,自引:0,他引:2  
Life stressors and social resources among late-middle-aged problem and nonproblem drinkers were studied. Problem drinkers (n = 501) reported more negative life events, chronic stressors, and social resource deficits than did nonproblem drinkers (n = 609). In a comparison of problem drinkers, men reported more ongoing stressors involving finances and friends, and fewer resources from children, extended-family members, and friends than did women. Women who are problem drinkers reported more negative life events, more ongoing difficulties with spouses and extended-family members, and fewer resources from spouses. Among both the problem and nonproblem drinkers, more stressors were associated with fewer social resources, but only within certain life domains. Late-middle-aged adults' chronic stressors and social resources helped explain their drinking behavior, depression, and self-confidence even after sex, marital status, and negative life events were considered.  相似文献   
980.
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