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   1408篇
  免费   33篇
  国内免费   2篇
教育   1068篇
科学研究   94篇
各国文化   12篇
体育   101篇
文化理论   14篇
信息传播   154篇
  2022年   9篇
  2021年   17篇
  2020年   28篇
  2019年   53篇
  2018年   53篇
  2017年   54篇
  2016年   37篇
  2015年   18篇
  2014年   33篇
  2013年   345篇
  2012年   41篇
  2011年   36篇
  2010年   24篇
  2009年   18篇
  2008年   30篇
  2007年   24篇
  2006年   26篇
  2005年   22篇
  2004年   38篇
  2003年   22篇
  2002年   23篇
  2001年   18篇
  2000年   20篇
  1999年   20篇
  1998年   15篇
  1997年   20篇
  1996年   26篇
  1995年   21篇
  1994年   16篇
  1993年   21篇
  1992年   13篇
  1991年   17篇
  1990年   20篇
  1989年   15篇
  1988年   13篇
  1987年   7篇
  1986年   13篇
  1985年   18篇
  1984年   14篇
  1983年   19篇
  1982年   10篇
  1981年   8篇
  1980年   7篇
  1979年   9篇
  1978年   9篇
  1977年   12篇
  1976年   8篇
  1974年   8篇
  1969年   7篇
  1890年   7篇
排序方式: 共有1443条查询结果,搜索用时 0 毫秒
991.
992.
The aims of the study are to identify and prioritize research questions of importance to nurses in North Glasgow University Hospitals NHS Trust and to investigate and describe the existing evidence base for the highest priority questions identified. The consensus method known as the Delphi technique was used. Systematic searching of the literature for each question identified from the research priorities enabled the existing evidence base to be characterized. The following priorities were identified as the most important (in descending order of importance): Recruitment and Retention of Nursing Staff; Staff Stress & Morale; Training & Education of Nursing Staff; Infection Control; and Pain Management. The Delphi technique proved a useful method to determine and prioritize research areas in nursing.  相似文献   
993.
994.
995.
We compared 24 low-birthweight subjects of an experimental intervention (LBWE), 32 no-treatment controls (LBWC), and 37 normal birthweight (NBW) subjects. The intervention involved 7 hospital sessions and 4 home sessions in which a nurse helped mothers adapt to their LBW babies. At age 7, LBWE scored significantly higher than LBWC on the Kaufman Mental Processing Composite (p less than .001), Sequential (p = .02), and Simultaneous (p = .001) Scales, after statistical adjustments for socioeconomic status. LBWE did not differ from NBW (F less than 1). These results bear out a divergence between the LBWE and LBWC that first became statistically significant at age 3. The findings suggest that the intervention prevented cognitive lags among LBW children, and that long-term follow-ups are needed to evaluate the developmental effects of efforts to overcome major biological and environmental risks.  相似文献   
996.
997.
998.
999.
This paper uses a unique data set created by merging the Panel Study of Income Dynamics with school data from the Common Core of Data to examine the relationship between school expenditures and earnings. I find that school expenditures are related to earnings, and also positively affect the returns to schooling. This is particularly important given recent papers that have found no effect because this study is able to observe wages at later ages and is estimated for males and females. Robustness estimates find that if the sample were only observed at young ages, or estimated for white males, as has been done previously, the results would not hold. Therefore, it appears that even using an individual-level data set with students educated in this half of the century, school spending affects earnings.  相似文献   
1000.
Presented here is his keynote address to the November 1994 convention of the National Association of Scholars in Cambridge, MA. A portion was taken in slightly modified form from Professor Wilson's autobiography,Naturalist (Washington, D.C. and Covelo, Calif.: Island Press-Shearwater Books, 1994).  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