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   1949篇
  免费   90篇
管理学   431篇
民族学   16篇
人口学   187篇
丛书文集   6篇
理论方法论   129篇
综合类   52篇
社会学   837篇
统计学   381篇
  2023年   27篇
  2022年   18篇
  2021年   17篇
  2020年   30篇
  2019年   67篇
  2018年   111篇
  2017年   122篇
  2016年   110篇
  2015年   73篇
  2014年   85篇
  2013年   331篇
  2012年   97篇
  2011年   63篇
  2010年   81篇
  2009年   78篇
  2008年   59篇
  2007年   69篇
  2006年   86篇
  2005年   48篇
  2004年   44篇
  2003年   36篇
  2002年   49篇
  2001年   58篇
  2000年   37篇
  1999年   27篇
  1998年   17篇
  1997年   16篇
  1996年   10篇
  1995年   7篇
  1994年   11篇
  1993年   10篇
  1992年   13篇
  1991年   11篇
  1990年   10篇
  1989年   6篇
  1988年   15篇
  1987年   5篇
  1986年   6篇
  1985年   11篇
  1984年   6篇
  1983年   6篇
  1982年   7篇
  1980年   8篇
  1979年   7篇
  1978年   3篇
  1977年   4篇
  1974年   5篇
  1972年   3篇
  1971年   3篇
  1968年   4篇
排序方式: 共有2039条查询结果,搜索用时 765 毫秒
291.
292.
293.
294.
295.
This qualitative study aims to interpret the results of a randomized controlled trial comparing two educational programs (directed learning and self-directed learning) in evidence-based medicine (EBM) for medical students at the University of Oslo from 2002 to 2003. There is currently very little comparative educational research in this field. In the trial, no statistically significant differences between the study groups were shown for any outcomes considered (EBM knowledge, skills, and attitudes). Further analysis suggests that main reason for the negative trial results was that the majority of students learned equally effectively, whichever program they received, although implementation of the educational programs was not complete because of varying attendance. This study illustrates a stepwise evaluation model that might be useful in evaluating other socially complex interventions.  相似文献   
296.
Resistance training has been shown to be the most effective exercise mode to induce anabolic adaptations in older men and women. Advances in imaging techniques and histochemistry have increased the ability to detect such changes, confirming the high level of adaptability that remains in aging skeletal muscle. This brief review presents a summary of the resistance-training studies that directly compare chronic anabolic responses to training in older (>60 years) men and women. Sixteen studies are summarized, most of which indicate similar relative anabolic responses between older men and women after resistance training. Relatively small sample sizes in most of the interventions limited their ability to detect significant sex differences and should be considered when interpreting these studies. Future research should incorporate larger sample sizes with multiple measurement time points for anabolic responses.  相似文献   
297.
The widespread application of technology in health care has imposed a broad range of challenges. The field of health technology assessment (HTA) is developed in order to face some of these challenges. However, this strategy has not been as successful as one could hope. One of the reasons for this is that social and ethical considerations have not been integrated in the HTA process. Nowadays however, such considerations have been included in many HTAs. Still, the conclusions and recommendations of the HTAs are not followed. The reason for this may be that the methods for integrating ethics for HTA are not sufficiently developed, or that they are not adequate. This article presents a supplementary approach to the ethical inquiry in HTA. It is argued that a value analysis is crucial in order to address the ethical issues of health care technology in a fruitful way and to make viable decisions about such technology.
Bjørn HofmannEmail: Phone: +47-2-2844645Fax: +47-2-2844661
  相似文献   
298.
The career-plateau as challenge to enterprises, employees and consultantsThe authors intend to link life-span-psychology to career-research in order to make understand the phenomenon of career-plateau and how individuals and organisations can deal with it. People take stock in the middle of their lives and assess their personal or professional targets. This process often relates to a personal crisis, especially when the success rate of a job is an important part of the self-concept and hierarchical development has stopped simultaneously. Nevertheless, the desire for a career continues to exist. On top of that what makes it even harder is that the individual has to work at least 20 more years because of demographic reasons. We assume that the way how to manage this crisis has a big influence on performance motivation and that life-span-orientated management development can help the individual to overcome the crisis or even prevent it.  相似文献   
299.
300.
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