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   806篇
  免费   15篇
  国内免费   9篇
教育   478篇
科学研究   112篇
各国文化   32篇
体育   118篇
综合类   13篇
文化理论   4篇
信息传播   73篇
  2023年   5篇
  2022年   6篇
  2021年   25篇
  2020年   25篇
  2019年   41篇
  2018年   48篇
  2017年   43篇
  2016年   33篇
  2015年   35篇
  2014年   20篇
  2013年   131篇
  2012年   32篇
  2011年   34篇
  2010年   32篇
  2009年   30篇
  2008年   29篇
  2007年   33篇
  2006年   23篇
  2005年   22篇
  2004年   16篇
  2003年   29篇
  2002年   29篇
  2001年   19篇
  2000年   15篇
  1999年   3篇
  1998年   4篇
  1997年   3篇
  1996年   6篇
  1995年   2篇
  1994年   3篇
  1992年   2篇
  1991年   3篇
  1990年   2篇
  1989年   3篇
  1988年   2篇
  1987年   3篇
  1985年   3篇
  1984年   4篇
  1983年   4篇
  1981年   2篇
  1980年   3篇
  1979年   4篇
  1977年   5篇
  1976年   2篇
  1971年   1篇
  1969年   1篇
  1963年   2篇
  1957年   1篇
  1955年   1篇
  1875年   1篇
排序方式: 共有830条查询结果,搜索用时 693 毫秒
81.
This editorial examines the question of whether plagiarism may be on the increase in the social sciences and, if so, what needs to be done to keep the problem in check. It was prompted by the discovery of an alert reader in June 2007 that a 1993 paper in Research Policy appeared to have plagiarised a 1980 article in the Journal of Business. The allegation was investigated, and it was agreed by the Editors that the 1993 paper constituted a clear and serious case of plagiarism. However, the author concerned has published over 100 articles and books. Already, two other publications have been judged by the editors of the journals concerned to have plagiarised previous publications. Two more are under investigation, but the great majority of the remainder still remain to be checked. The fact that academic misconduct on this scale has gone unchecked over such a prolonged period raises serious issues about the efficacy of the processes used to police the conduct of researchers. Furthermore, the unexpected discovery that a paper by the author under investigation appears itself to have been plagiarised poses a fundamental question as to whether plagiarism may be far more common than previously assumed. The editorial concludes that a measured degree of vigilance and a greater willingness to pursue any well-founded suspicions of research misconduct are required by editors, referees, publishers and the wider academic community if the scourge of plagiarism is to be kept at bay.  相似文献   
82.
工业设计在经济建设中发挥着重要作用.设计师应具有较高的文化素质和艺术修养,应是全面发展的高素质人才.而我国的设计教育在招生方式和招生标准方面还存在许多问题,致使生源素质不高,不能选拔出高素质人才.所以必须对传统的招生方式进行改革,发展工业设计要从培养生源和选拔人才抓起.  相似文献   
83.
84.
本文提出了海军计算机专业毕业学员应该具备的业务素质、能力与技能 ,指出如何应对该学科的飞速发展 ,给出了 3个层次的检验标准以说明 2 1世纪计算机专业学员应该具备的特征  相似文献   
85.
ABSTRACT

In the UK, higher education (HE) policy discourse over the past 60 years has advocated flexible part-time HE for social mobility, personal development, economic advantage and leisure. However, part-time undergraduate HE in the UK is in steep decline. Against this backdrop, we were interested in how universities promote, or fail to promote, part-time study options today. We built a corpus of 90 UK undergraduate prospectuses for 2018 entry (5,673,799 words). Using a corpus-assisted discourse analysis approach, we found significant mismatch between policy discourse and marketing discourse regarding part-time study. In particular, we found that UK university marketing discourse positions full-time study as the dominant mode of study and writes of part-time study as ‘second-best’. This discourse mismatch is particularly marked when it comes to the elite Russell Group of universities. Viewing the absence of strong promotional discourse relating to part-time study alongside other factors such as increased tuition fees and the rise of global online education platforms adds a new perspective to the decline of flexible part-time undergraduate HE at campus-based universities in the UK.  相似文献   
86.
教育创新是社会发展的必然要求,也是学科发展的必然趋势。语文教师要在基础教育改革中扮演重要角色,就必须具备较高的创新素质。创新型教师应该具有现代化的语文教育思想、创新的自信心与责任感、新的人才观、新的学习观、不断进取的探索精神。  相似文献   
87.
电视新闻现场报道是一种重要的报道形式 ,因而它越来越多地被记者们所采用。然而目前的许多所谓“现场报道”却并不是真正意义上的“现场报道”。产生这种现象的一个重要原因是记者的口语能力达不到相应的要求。在新闻教育和新闻从业人员中加强口语训练 ,乃是一个亟待解决的问题。  相似文献   
88.
Rats were trained on a series of reversals of a successive discrimination in which the percentage of S+ trials ending in food was varied. Changes in the discrimination index occurred more slowly with 50% reinforcement than with 100% reinforcement when the number of training trials was equated across conditions, but were approximately invariant when the conditions were equated with respect to the number of obtained reinforcements. Presentation of free reinforcement during the intertrial intervals reduced the overall rate of discrimination acquisition, but left this invariance unaffected. Invariance in reinforcements necessary to attain acquisition also occurred when different discriminations correlated with different percentages of reinforcement were intermixed within experimental sessions. The failure of the invariance effect to be disrupted by either manipulation suggests that previous accounts of the invariance effect in terms of “comparator” models of conditioning (e.g., Gibbon & Balsam, 1981) are inadequate.  相似文献   
89.
This research examines the impact of lecturer-student exchange (student-LMX) on engagement, course satisfaction, achievement, and intention to leave university prematurely for 363 students in one Australian university. Survey and grade point average (GPA) data were collected from domestic undergraduate first- and second-year students and analysed using structural equation modelling. The results indicated that student’s levels of engagement and course satisfaction fully mediated the relationship between student-LMX and intention to leave university, when demographic and socio-economic factors were controlled for. In an era when low student engagement and attrition is often attributed to individual demographic factors, and lecturers are under increasing threat of being replaced by technology, this research offers compelling evidence regarding the role of lecturer-student relationships in enhancing tertiary student outcomes.  相似文献   
90.
核能的计算是原子物理的重要内容和高考的热点问题,有关其计算的几种方法,现归纳如下:(1)根据质量亏损计算,步骤如下:  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