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   21785篇
  免费   254篇
  国内免费   18篇
教育   15475篇
科学研究   2342篇
各国文化   258篇
体育   1480篇
综合类   22篇
文化理论   267篇
信息传播   2213篇
  2021年   188篇
  2020年   279篇
  2019年   421篇
  2018年   588篇
  2017年   646篇
  2016年   593篇
  2015年   414篇
  2014年   572篇
  2013年   4137篇
  2012年   488篇
  2011年   484篇
  2010年   473篇
  2009年   406篇
  2008年   459篇
  2007年   474篇
  2006年   447篇
  2005年   416篇
  2004年   425篇
  2003年   365篇
  2002年   381篇
  2001年   432篇
  2000年   454篇
  1999年   382篇
  1998年   251篇
  1997年   290篇
  1996年   288篇
  1995年   266篇
  1994年   246篇
  1993年   220篇
  1992年   308篇
  1991年   289篇
  1990年   315篇
  1989年   317篇
  1988年   275篇
  1987年   286篇
  1986年   259篇
  1985年   302篇
  1984年   252篇
  1983年   230篇
  1982年   227篇
  1981年   189篇
  1980年   166篇
  1979年   249篇
  1978年   204篇
  1977年   197篇
  1976年   158篇
  1975年   149篇
  1974年   155篇
  1973年   151篇
  1971年   130篇
排序方式: 共有10000条查询结果,搜索用时 9 毫秒
961.
962.
963.
The authors have developed a first-year fluids course for a class of around 230 aerospace, civil and mechanical engineering students. This paper aims to show how the teaching and assessment methodology was applied to the challenge of a large class. The lectures featured formal teaching interspersed with active learning elements. Smaller group (about 25–30 students) tutorial classes involved student practice. A 10-minute test occurred in each tutorial during weeks 3–11. Each test was based on the previous week's lecture material and the marks contributed towards 20% of the course mark. A condition for passing the course was that a student must pass at least six of the nine tests. The assessment promoted student involvement with the course – tutorial attendance was greater and more uniform than previously and exam performance improved significantly. Students recognised that the assessment system was useful in encouraging continuous learning over the semester and building confidence.  相似文献   
964.
965.
This paper explores how mature female flight attendants [FAs] use Selection, Optimization and Compensation [SOC] strategies to cope with age-related diminishing resources at work. The role of FAs is an age-sensitive occupation, and in some organizations, women are under constant pressure to look young and attractive. This Interpretative Phenomenological Analysis study aims to add depth and nuance to our understanding of SOC strategies qualitatively; most published studies are quantitative. A homogenous sample of 5 mature single Filipina FAs, foreign workers employed by Arabian Gulf-based airlines, were interviewed through a semi-structured protocol. Recruitment was through a snowball process. The study found that FAs use SOC strategies to compensate for age-related decline. Off-duty, their focus is directed to activities that help them to meet the organizations’ expectations of youthful appearance and productivity. To achieve this, resources from other life domains are diverted, which leads to negative outcomes from focusing SOC strategies on only one aspect of life. Despite negative personal implications and concerns about the future, the participants still felt attached to their work identities. This shows the importance of understanding the use of SOC strategies within and across life domains, as well as their implications for career sustainability and workability. The use of such strategies at work when detrimental to other life roles is unsustainable. The findings highlight the importance of conducting more qualitative studies on SOC behaviors of specific groups, so the experiences of aging at work can be explored in more depth, allowing areas of concern to be identified.  相似文献   
966.
Abstract

This study was conducted in order to determine whether or not one semester of individualized instruction is enough time to create in students an increased sense of being able to control payoffs in life and to lead students to develop a more realistic appraisal of their ability to control payoffs in an academic environment. Paradoxically, the converse may occur. When first confronted with a success-oriented instructional process and opportunities for self-pacing, students with failure histories may become more external, anxious, or uncertain. In order to examine these notions, a sample of 126 educationally deficient students who were beginning their first semester of study in a community college were selected from 18 different sections of math, English, and history and tested twice—once at the beginning of the term and again late in the term just prior to finals.  相似文献   
967.
968.
Journalism     
George E. Stevens and John B. Webster's Law and the Student Press (Ames: Iowa State University Press, 1973---price not given, paper)

Jerome L. Nelson's Libel. A Basic Program for Beginning Journalists (Ames: Iowa State University Press, 1973---price not given, paper)

Art of the Printed Book: 1455-1955 (New York: Pierpont Morgan Library, 1973---$20.00/11.00)

Bruce Buschel, Albert Robbins, William Vitta, and Rod Nordland's The Watergate File (New York: Quick Fox Inc., 33 West 60th St., 1973---$3.95, paper)  相似文献   
969.
970.
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