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   28937篇
  免费   1321篇
  国内免费   42篇
  30300篇
  2021年   245篇
  2020年   464篇
  2019年   483篇
  2018年   672篇
  2017年   660篇
  2016年   746篇
  2015年   514篇
  2014年   652篇
  2013年   2639篇
  2012年   1114篇
  2011年   1173篇
  2010年   775篇
  2009年   779篇
  2008年   1024篇
  2007年   986篇
  2006年   881篇
  2005年   749篇
  2004年   782篇
  2003年   718篇
  2002年   716篇
  2001年   876篇
  2000年   898篇
  1999年   639篇
  1998年   365篇
  1997年   326篇
  1996年   253篇
  1995年   285篇
  1994年   266篇
  1993年   272篇
  1992年   487篇
  1991年   443篇
  1990年   462篇
  1989年   446篇
  1988年   433篇
  1987年   407篇
  1986年   405篇
  1985年   394篇
  1984年   350篇
  1983年   297篇
  1982年   238篇
  1981年   250篇
  1979年   303篇
  1978年   273篇
  1977年   229篇
  1975年   262篇
  1974年   316篇
  1973年   262篇
  1972年   243篇
  1969年   225篇
  1968年   222篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
31.
Promises     
GRANT CK 《Mind》1949,58(231):359-366
  相似文献   
32.
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   
33.
34.
35.
36.
37.
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   
38.
39.
40.
The purpose of this meta-analysis of randomized controlled trials was to evaluate the efficacy of psychological interventions for adults with noncancerous chronic low back pain (CLBP). The authors updated and expanded upon prior meta-analyses by using broad definitions of CLBP and psychological intervention, a broad data search strategy, and state-of-the-art data analysis techniques. All relevant controlled clinical trials meeting the inclusion criteria were identified primarily through a computer-aided literature search. Two independent reviewers screened abstracts and articles for inclusion criteria and extracted relevant data. Cohen's d effect sizes were calculated by using a random effects model. Outcomes included pain intensity, emotional functioning, physical functioning (pain interference or pain-specific disability, health-related quality of life), participant ratings of global improvement, health care utilization, health care provider visits, pain medications, and employment/disability compensation status. A total of 205 effect sizes from 22 studies were pooled in 34 analyses. Positive effects of psychological interventions, contrasted with various control groups, were noted for pain intensity, pain-related interference, health-related quality of life, and depression. Cognitive-behavioral and self-regulatory treatments were specifically found to be efficacious. Multidisciplinary approaches that included a psychological component, when compared with active control conditions, were also noted to have positive short-term effects on pain interference and positive long-term effects on return to work. The results demonstrated positive effects of psychological interventions for CLBP. The rigor of the methods used, as well as the results that reflect mild to moderate heterogeneity and minimal publication bias, suggest confidence in the conclusions of this review.  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