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   30348篇
  免费   1055篇
  国内免费   12篇
  2020年   301篇
  2019年   346篇
  2018年   468篇
  2017年   540篇
  2016年   563篇
  2015年   382篇
  2014年   502篇
  2013年   2527篇
  2012年   910篇
  2011年   961篇
  2010年   634篇
  2009年   584篇
  2008年   848篇
  2007年   818篇
  2006年   761篇
  2005年   696篇
  2004年   686篇
  2003年   637篇
  2002年   746篇
  2001年   821篇
  2000年   839篇
  1999年   676篇
  1998年   386篇
  1997年   331篇
  1996年   307篇
  1992年   548篇
  1991年   501篇
  1990年   524篇
  1989年   490篇
  1988年   458篇
  1987年   462篇
  1986年   469篇
  1985年   501篇
  1984年   435篇
  1983年   407篇
  1982年   344篇
  1981年   344篇
  1979年   498篇
  1978年   397篇
  1977年   364篇
  1976年   318篇
  1975年   440篇
  1974年   469篇
  1973年   417篇
  1972年   392篇
  1971年   329篇
  1969年   369篇
  1968年   398篇
  1967年   356篇
  1966年   362篇
排序方式: 共有10000条查询结果,搜索用时 78 毫秒
1.
2.
3.
James Cargile 《Topoi》2003,22(2):143-149
  相似文献   
4.
Evaluated the effect of varied physician affect on subject recall, anxiety, and perceptions in a simulated tense and ambiguous medical situation. Forty women at risk for breast cancer viewed videotapes of an oncologist presenting--with either worried or nonworried affect--mammogram results. Although the mammogram results and the oncologist were the same in both presentation, analyses indicated that, compared to the women receiving the results from a nonworried physician, the women receiving the results from a worried physician recalled significantly less information, perceived the clinical situation as significantly more severe, reported significantly higher levels of state anxiety, and had significantly higher pulse rates. These results suggest that physician affect plays a critical role in patient reaction to medical information. Implications for compliance research, patient satisfaction, and physician training are discussed.  相似文献   
5.
OBJECTIVE: To test a theoretical model of how ethnic pride and self-control are related to risk and protective factors. DESIGN: A community sample of 670 African American youth (mean age = 11.2 years) were interviewed in households. MAIN OUTCOME MEASURES: Measures of cigarette smoking, alcohol use, and sexual behavior (lifetime to past month). RESULTS: Structural modeling analyses indicated parenting was related to self-control and self-esteem, and racial socialization was related to ethnic pride. Self-control and self-esteem variables were related to levels of deviance-prone attitudes and to perceptions of engagers in, or abstainers from, substance use and sexual behavior. The proximal factors (behavioral willingness, resistance efficacy, and peer behavior) had substantial relations to the criterion variables. Participant gender and parental education also had several paths in the model. Results were generally similar for the 2 outcome behaviors. CONCLUSIONS: In this population, self-esteem and self-control are related to parenting approaches and have pathways to attitudes and social perceptions that are significant factors for predisposing to, or protecting against, early involvement in substance use and sexual behavior.  相似文献   
6.
7.
8.
9.
Subjects in five experiments read nine-digit memory lists from a cathode ray tube for immediate recall. Reading aloud always produced a localized and reliable advantage for the last item, compared to reading silently. Two experiments on whispered and mouthed lists, with or without simultaneous broadband noise, falsified expectations derived from the theory of precategorical acoustic storage. Three additional experiments showed no enhancement of recency in the silent conditions when the digits were drawn or spelled gradually on the screen, a result that is inconsistent with the changing-state hypothesis. The classic auditory-visual modality effect is large and reliable, but still poorly understood.  相似文献   
10.
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