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   77133篇
  免费   3148篇
  国内免费   49篇
  2020年   859篇
  2019年   1073篇
  2018年   1524篇
  2017年   1520篇
  2016年   1616篇
  2015年   1091篇
  2014年   1345篇
  2013年   6494篇
  2012年   2451篇
  2011年   2583篇
  2010年   1537篇
  2009年   1623篇
  2008年   2308篇
  2007年   2284篇
  2006年   2036篇
  2005年   1812篇
  2004年   1794篇
  2003年   1612篇
  2002年   1679篇
  2001年   2487篇
  2000年   2428篇
  1999年   1851篇
  1998年   927篇
  1997年   818篇
  1996年   752篇
  1995年   764篇
  1993年   745篇
  1992年   1477篇
  1991年   1398篇
  1990年   1365篇
  1989年   1255篇
  1988年   1236篇
  1987年   1171篇
  1986年   1180篇
  1985年   1264篇
  1984年   1017篇
  1983年   894篇
  1982年   733篇
  1979年   1034篇
  1978年   764篇
  1976年   715篇
  1975年   870篇
  1974年   1003篇
  1973年   986篇
  1972年   878篇
  1971年   766篇
  1969年   719篇
  1968年   904篇
  1967年   859篇
  1966年   776篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
An assessment of the Hasher and Zacks (1979) conceptualization of the automatic nature of the acquisition of spatial location information was made in the context of manipulations of subjects' intention to learn and mood state. The Velten (1968) mood induction procedure was used to establish depressed and nondepressed subjects. Half of each group was then presented with a matrix of geometric forms under instructions to learn the location of the forms (intentional) or to evaluate the pleasantness of the array (incidental). Subsequent tests of spatial location performance found no differences as a function of subjects' mood state, but did find a strong effect for instructional condition. The superior performance of the intentional subjects raises questions about the automatic nature of the encoding of spatial location.  相似文献   
952.
953.
954.
Dieting and binging. A causal analysis   总被引:16,自引:0,他引:16  
  相似文献   
955.
956.
957.
This study concerns the manner in which the traumatic events suffered by the parent in the Nazi holocaust are communicated to the second generation born after the Second World War. Additionally we investigated the effects of differences in wartime experiences on subsequent communication behaviors. Communication behaviors in families whose parents had been prisoners in concentration camps were compared with those of families who had displayed active resistance (i.e., were partisans) during the Second World War. The data indicate greater legitimacy and openness in discussing holocaust-related issues in the homes of ex-partisans than in the homes of ex-prisoners in concentration camps. Also, sons and daughters of the former group have better knowledge of the holocaust and hold more favorable attitudes than do sons and daughters in the second group. The implications of these findings are discussed.  相似文献   
958.
The work of the Center for the Study of the Family in Milan has had wide influence. We describe its influence on us--the positive connotation of many car journeys, our self-training, and changes in how we view, and function in, our personal and professional lives.  相似文献   
959.
A W Koester  J K May 《Adolescence》1985,20(77):97-113
The purpose of this study was to examine the clothing practices in the daily selection, care, and purchase of clothing by adolescents in order to determine the extent these practices are performed independently or influenced by others, and to identify the factors involved in the activities. Clothing Practice Profiles were developed for both sexes in the three age groups corresponding to divisions in the Oregon 4-H program. The age group comparison revealed increasing frequency of independent activity in all three clothing practice areas (selection, care, and purchase) as age increased. Parental influence appeared to decrease with increasing age. Siblings' influence was minimal. Peer influence on selection and purchase practices increased. Media influence on daily clothing selection practices and clothing purchase practices in terms of wearing or buying identical or similar clothing was minimal. Media influence in advertisements increased with age, but purchases of advertised clothing items remained about the same. Age group comparisons were also made for selection factors and other care and purchase practices, including responsibilities for care of the member's and family's clothing, planning clothing purchases, sources of funds and methods of paying for clothing, use of clothing label information, and purchase factors.  相似文献   
960.
We have become a drug-oriented society. Cummings (1979), citing evidence from the National Institute of Drug Abuse, reports that one of every eleven adult Americans suffers from a severe addictive problem. Drug addition is epidemic among teenagers; one of every six teenagers suffers from a severe addictive problem. This paper focuses on adolescent drug/substance abuse.  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