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   26844篇
  免费   1171篇
  国内免费   13篇
  2021年   218篇
  2020年   372篇
  2019年   405篇
  2018年   578篇
  2017年   531篇
  2016年   623篇
  2015年   436篇
  2014年   575篇
  2013年   2347篇
  2012年   1001篇
  2011年   964篇
  2010年   690篇
  2009年   680篇
  2008年   951篇
  2007年   953篇
  2006年   834篇
  2005年   763篇
  2004年   755篇
  2003年   680篇
  2002年   698篇
  2001年   846篇
  2000年   854篇
  1999年   628篇
  1998年   350篇
  1997年   315篇
  1996年   263篇
  1995年   275篇
  1994年   269篇
  1993年   244篇
  1992年   482篇
  1991年   446篇
  1990年   457篇
  1989年   403篇
  1988年   393篇
  1987年   385篇
  1986年   340篇
  1985年   355篇
  1984年   345篇
  1983年   295篇
  1982年   264篇
  1981年   242篇
  1980年   222篇
  1979年   321篇
  1978年   275篇
  1977年   230篇
  1976年   222篇
  1975年   251篇
  1974年   301篇
  1973年   280篇
  1968年   226篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
Adherence to medications for chronic pediatric diseases decreases overtime. This randomized controlled trial evaluated a clinic-based, nurse-administered educational and behavioral intervention to prevent the anticipated drop in adherence to nonsteroidal medications among newly diagnosed patients with juvenile rheumatoid arthritis. Thirty-four participants completed the study (mean age = 8.44 years, SD = 3.96), including 19 in the experimental group and 15 in the standard-treatment (education) control group. There were significant group and Group x Time effects for adherence (assessed with an electronic monitor over a 13-month period) favoring the experimental group. In contrast, the groups did not differ significantly in disease activity or functional limitations. Factors that may have prevented detection of differences in these health parameters are dicussed.  相似文献   
42.
43.
44.
45.
46.
A Black feminist model was used to investigate rape myth acceptance between African American antirape activists and a comparison group of nonactivists using Cross's (1991) racial identity model and Downing and Roush's (1985) feminist identity model. As predicted, activists rejected rape myths more than nonactivists; the earlier stages of both models were associated with rape myth acceptance; the later stages were associated with rape myth rejection; and activists evidenced more sociopolitical maturity (race and gender consciousness) than nonactivists. The findings suggest that researchers may need to investigate to what degree rape myth acceptance serves an overarching system of social domination where racism and sexism overlap.  相似文献   
47.
48.
An eye-tracking experiment investigated whether incremental interpretation applies to interclausal relationships. According to Millis and Just's (1994) delayed-integration hypothesis, interclausal relationships are not computed until the end of the second clause, because the processor needs to have two full propositions before integration can occur. We investigated the processing of causal and diagnostic sentences (Sweetser, 1990; Tversky & Kahneman, 1982) that contained the connective because . Previous research (Traxler, Sanford, Aked, & Moxey, 1997) has demonstrated that readers have greater difficulty processing diagnostic sentences than causal sentences. Our results indicated that difficulty processing diagnostic sentences occurred well before the end of the second clause. Thus comprehenders appear to compute interclausal relationships incrementally.  相似文献   
49.
50.
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