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   1223篇
  免费   34篇
  国内免费   4篇
教育   923篇
科学研究   85篇
各国文化   22篇
体育   77篇
综合类   1篇
文化理论   16篇
信息传播   137篇
  2022年   9篇
  2021年   18篇
  2020年   14篇
  2019年   26篇
  2018年   43篇
  2017年   35篇
  2016年   55篇
  2015年   23篇
  2014年   47篇
  2013年   320篇
  2012年   15篇
  2011年   28篇
  2010年   20篇
  2009年   29篇
  2008年   34篇
  2007年   31篇
  2006年   30篇
  2005年   27篇
  2004年   19篇
  2003年   21篇
  2002年   23篇
  2001年   17篇
  2000年   18篇
  1999年   19篇
  1998年   11篇
  1997年   18篇
  1996年   10篇
  1995年   14篇
  1994年   13篇
  1993年   13篇
  1992年   9篇
  1991年   12篇
  1990年   9篇
  1989年   12篇
  1988年   9篇
  1987年   6篇
  1985年   14篇
  1984年   8篇
  1983年   16篇
  1982年   15篇
  1981年   8篇
  1979年   11篇
  1978年   9篇
  1977年   8篇
  1975年   7篇
  1974年   11篇
  1973年   9篇
  1972年   6篇
  1970年   6篇
  1965年   6篇
排序方式: 共有1261条查询结果,搜索用时 15 毫秒
1.
Fernandez  Frank  Baker  David P.  Fu  Yuan-Chih  Muñoz  Ismael G.  Ford  Karly Sarita 《Minerva》2021,59(1):79-98
Minerva - Over the course of the 20th century, unprecedented growth in scientific discovery was fueled by broad growth in the number of university-based scientists. During this period the American...  相似文献   
2.
This article begins with an analysis of reliability and usability in the mathematical literature. Mathematical practice is seen to be adapted to very high standards in these respects, and quite sensitive to even modest declines in quality. Unfortunately most scenarios for the transition to electronic publication suggest serious loss of quality. This is a problem special to mathematics: other sciences are adapted to lower standards, and should be much less sensitive to changes. Some ways to prevent this decline are suggested. A condensed version of this article appeared inNotices of the American Mathematical Society, 42, 1, January 1995. Published with permission of the American Mathematical Society.  相似文献   
3.
Cain  Frank 《Minerva》2002,40(3):315-325
  相似文献   
4.
The purpose of the study was to identify the pattern of publication about women and AIDS in scientific journals. Bradford zones were identified in each of six databases. The study determined that journal scatter for this subset of AIDS literature differed from the scatter in the general literature; further, the information indexed in the six electronic sources demonstrated little overlap. Consequently, key journal and newsletter titles identified by this study should form the core of any collection focusing on women and AIDS. The assurance of quality patient care management demands that librarians consult multiple resources for information retrieval that can assist health care providers, patients, and caregivers to enhance quality of life as well as to provide optimum care.  相似文献   
5.
6.
7.
8.
This article focuses on counseling research in the community college context. The article suggests the need for a robust community college knowledge base, describes some limitations of the current community college literature, and suggests a framework for more effective work in this area. The authors’ own experiences and selected examples of published studies are used as illustrations of the hurdles encountered and solutions available when examining counseling theories, practices, and outcomes in 2‐year settings.  相似文献   
9.
10.
Using a participatory learning approach, we report on the delivery and evaluation of a climate change and risk assessment tool to help manage water risks within the agricultural sector. Post-graduate water-professional students from a range of countries, from both developed and emerging economies were involved in using this tool. Our approach included participative learning tools – group discussion, software, and risk matrices. The materials developed met the needs of the students, allowing these students to incorporate their learning and adapt the package of materials for use in their home countries. Analysis of evaluations show that the tools and materials are particularly useful and emphasizes the need for sound learning materials and tools, funding to deliver training, and policy support to accelerate education and adoption of authentic climate change adaptation practices. The expected benefits for water professionals about climate change will be translated into improved socioeconomic and environmental outcomes if adopted.  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