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   895篇
  免费   14篇
教育   720篇
科学研究   29篇
各国文化   14篇
体育   70篇
综合类   2篇
文化理论   7篇
信息传播   67篇
  2021年   6篇
  2020年   14篇
  2019年   21篇
  2018年   24篇
  2017年   23篇
  2016年   31篇
  2015年   14篇
  2014年   27篇
  2013年   234篇
  2012年   18篇
  2011年   20篇
  2010年   18篇
  2009年   22篇
  2008年   33篇
  2007年   21篇
  2006年   15篇
  2005年   16篇
  2004年   15篇
  2003年   20篇
  2002年   18篇
  2001年   10篇
  2000年   16篇
  1999年   9篇
  1998年   13篇
  1997年   8篇
  1996年   16篇
  1995年   16篇
  1994年   12篇
  1993年   13篇
  1992年   14篇
  1991年   13篇
  1990年   13篇
  1989年   6篇
  1988年   6篇
  1987年   4篇
  1986年   8篇
  1985年   7篇
  1984年   10篇
  1983年   10篇
  1982年   11篇
  1981年   13篇
  1980年   6篇
  1979年   8篇
  1978年   7篇
  1977年   3篇
  1976年   6篇
  1974年   6篇
  1973年   5篇
  1971年   4篇
  1841年   4篇
排序方式: 共有909条查询结果,搜索用时 15 毫秒
41.
Academic medical libraries have a responsibility to inform library users regarding retracted publications. Many have created policies and procedures that identify flawed journal articles. A questionnaire was sent to the 129 academic medical libraries in the United States and Canada to find out how many had policies and procedures for identifying retracted publications. Of the returned questionnaires, 59% had no policy and no practice for calling the attention of the library user to retracted publications. Forty-one percent of the libraries called attention to retractions with or without a formal policy for doing so. Several responding libraries included their policy statement with the survey. The increasing number of academic medical libraries that realize the importance of having policies and practices in place highlights the necessity for this procedure.  相似文献   
42.
Are student attitudes toward science-technology-society (TSS) affected by visitation to science-technology museums? The purpose of this study was to determine whether such visitations affected student STS attitudes, and in what ways particular factors of the visitation impacted these attitudes. Factors examined included prior classroom experience with STS, instructional methodology employed by teachers, grade level, socioeconomic status, school type (public or private), and gender. The subjects involved in the study were 194 Kansas students in grades 6-8, and their 13 classroom teachers. Data were collected via a pretest-posttest control group design by using study-specific questionnaires and the Moore-Sutman Scientific Attitudes Inventory. Results indicated that significant differences in attitudes were present between visiting and nonvisiting students and between grade levels. No significant differences were found between other factors. One possible conclusion is that sound pedagogy should be used prior to and during museum visitations as well as in the classroom.  相似文献   
43.
44.
This article advocates the use of simple data sets to help students gain a good intuitive grasp of ANOVA concepts.  相似文献   
45.
46.
47.
Abstract

Nine males and nine females were used as subjects to test the null hypothesis that there would be no significant differences between the performance of college age males and females on three motor tasks. Star tracing, tapping, and rotary pursuit were the tasks used under two conditions: (a) while looking at a mirror that would cause a reversal effect, and (b) under standard conditions without looking at a mirror. Results revealed no differences between males and females on the tasks performed without a mirror. However, the females performed significantly better on the same tasks while looking at a mirror.  相似文献   
48.
Study One examined the influence of initial use of hesitations and hedges on evaluations of witnesses and their persuasiveness in a budget hearing context. Results indicate that the negative attributions generated by the use of powerless language cannot be overcome by subsequent use of powerful talk. Study Two examined the relationship between the frequency of powerless language use and impression formation. For award/character and dynamism a perceptual threshold appeared to operate. The results of both studies suggest that auditors are very sensitive to the influence of powerless talk in formal settings.  相似文献   
49.
In this article, the author reports the results of a national survey taken by state assessment directors on the impact of No Child Left Behind on nonassessed subjects between the years 2001-5. Results indicate that during this time, statewide assessment of science and writing increased whereas it decreased in the social studies, arts and humanities, listening, and technology and computers. Four themes emerged when survey takers queried participants about the impact of No Child Left Behind on nonassessed subject areas. First, reduction of resources and time for nontested subject areas was evident. Second, curriculum integration of nontested subject areas into the tested subjects increased. Third, alignment of curriculum and assessment with state standards increased. Fourth, several state assessment directors relayed they observed no impact.  相似文献   
50.
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