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   52026篇
  免费   2081篇
  国内免费   30篇
  2020年   582篇
  2019年   733篇
  2018年   1057篇
  2017年   1054篇
  2016年   1109篇
  2015年   738篇
  2014年   909篇
  2013年   4516篇
  2012年   1649篇
  2011年   1797篇
  2010年   1045篇
  2009年   1061篇
  2008年   1628篇
  2007年   1606篇
  2006年   1415篇
  2005年   1283篇
  2004年   1256篇
  2003年   1144篇
  2002年   1184篇
  2001年   1747篇
  2000年   1648篇
  1999年   1263篇
  1998年   663篇
  1997年   570篇
  1996年   514篇
  1995年   517篇
  1994年   494篇
  1993年   515篇
  1992年   1009篇
  1991年   953篇
  1990年   939篇
  1989年   849篇
  1988年   813篇
  1987年   800篇
  1986年   803篇
  1985年   853篇
  1984年   668篇
  1983年   576篇
  1982年   469篇
  1979年   653篇
  1978年   485篇
  1976年   446篇
  1975年   589篇
  1974年   619篇
  1973年   594篇
  1972年   539篇
  1971年   473篇
  1968年   541篇
  1967年   540篇
  1966年   475篇
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
821.
Adolescent alcoholism in Benin City, Nigeria   总被引:1,自引:0,他引:1  
O A Pela 《Adolescence》1986,21(82):487-492
The consumption of alcohol by Nigerian adolescents is investigated. Adolescence and alcoholism as applied in this study are defined, and the financial costs and physical and mental effects of alcohol use are described. The author used unobtrusive methods to gather data, visiting three nightclubs and an amusement park where alcohol is served in order to observe and interview adolescents. The findings show that adolescents begin drinking at an early age and consume large quantities of beer. The findings are consistent with those of other epidemiological studies. Finally, recommendations for controlling adolescent alcohol use are made.  相似文献   
822.
823.
Gifted women often find it difficult to integrate an acceptable social image with an autonomous artistic identity. This paper explores the ambitions and conflicts of Zelda Fitzgerald, who aspired to be an artist in several fields, but whose fame is largely contingent on the role she played in the life of her husband, F. Scott Fitzgerald. Zelda's flamboyant public pose, which served as a model for many of her husband's literary characters, is interpreted as an attempt to organize a consistent identity configuration by means of constant appeals for applause from an admiring audience. But although this configuration provided some stability and cohesion for her during her twenties, it was a superficial and vulnerable structure which failed to support her serious artistic aspirations. An examination of the separation conflicts and difficulties in internalization which contributed to Zelda's dilemma leads to a consideration of the role of the father in the organization of differentiated female achievements. Although Zelda Fitzgerald's pathology was extreme, her struggles suggest useful insights into the intrapsychic and social barriers commonly confronting creative women.  相似文献   
824.
825.
826.
The belief that individual marital therapy (IMT) is an ineffective form of treatment for marriage problems and markedly inferior to the conjoint approaches has become almost an article of faith in family therapy circles. This position was originally advanced in the influential reviews of the research literature conducted by Gurman and Kniskern, and their conclusions have been cited in numerous other articles. This paper re-reviews the research studies purportedly supporting this conclusion and finds almost all of them to be invalidated by gross flaws in design and implementation. It is argued that from the highly inadequate evidence available, no conclusions can be reached concerning either the absolute or relative effectiveness of IMT.  相似文献   
827.
828.
829.
The present study was designed to explore both the predictors of ethnic identity and the relationship between ethnic identity and psychosocial adjustment. Perceptions of ethnicity and ethnic identity and measures of psychosocial adjustment were obtained from 82 Italian-Australian adolescents. Parents' maintenance of cultural ties was associated with a strong sense of ethnic identity, however ethnic identity was relatively unimportant in predicting psychosocial adjustment. Cultural variables such as parents' embeddedness in the Italian community, the desire to assimilate into the Australian culture, and the perception of problems arising from minority group membership were of greater significance.  相似文献   
830.
A cross-cultural study of psychological differentiation of Canadian and Pakistani high school students was undertaken to examine the nature of psychological differentiation in relation to differences in age/grade, gender, and academic programs. The study involved 707 Canadian students from grades 6, 8, 10, and 12; and 349 Pakistani students from grades 8, 9, 10, and 12. The Group Embedded Figures Test was employed as a measure of the field-dependence-independence cognitive style. Analyses of data included two-way and three-way analyses of variance to determine the effects of grade, gender, and academic program upon GEFT scores. Differences in psychological differentiation between high school students in the two cultures were discussed in terms of Berry's eco-cultural model.  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