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   477篇
  免费   6篇
教育   363篇
科学研究   14篇
各国文化   2篇
体育   15篇
综合类   2篇
信息传播   87篇
  2021年   7篇
  2020年   8篇
  2019年   5篇
  2018年   16篇
  2017年   18篇
  2016年   17篇
  2015年   9篇
  2014年   7篇
  2013年   146篇
  2012年   7篇
  2011年   11篇
  2010年   10篇
  2009年   9篇
  2008年   14篇
  2007年   15篇
  2006年   10篇
  2005年   12篇
  2004年   13篇
  2003年   15篇
  2002年   24篇
  2001年   10篇
  2000年   4篇
  1999年   4篇
  1998年   6篇
  1997年   6篇
  1996年   8篇
  1995年   4篇
  1994年   2篇
  1993年   3篇
  1992年   5篇
  1991年   4篇
  1990年   8篇
  1989年   4篇
  1988年   4篇
  1986年   3篇
  1985年   2篇
  1984年   4篇
  1983年   4篇
  1982年   2篇
  1981年   1篇
  1980年   3篇
  1979年   3篇
  1978年   2篇
  1977年   4篇
  1976年   2篇
  1975年   2篇
  1974年   2篇
  1973年   1篇
  1961年   1篇
  1934年   1篇
排序方式: 共有483条查询结果,搜索用时 15 毫秒
1.
发表偏倚的原因、后果与预防研究   总被引:3,自引:0,他引:3  
杨扬  沈志超  靳纯桥 《编辑学报》2002,14(3):170-172
从4个方面对发表偏倚这一现象进行了研究: 1)发表偏倚的定义;2)发表偏倚产生的原因以及作者、编审者、资助者在选择性出版研究结果中所起的作用;3)发表偏倚的后果;4)发表偏倚的多项预防措施.  相似文献   
2.
循证医学和医学论文中统计学问题编辑鉴定的必要性   总被引:11,自引:4,他引:7  
杨扬  沈志超 《编辑学报》2001,13(2):77-78
介绍循证医学这一新兴学说及其对21世纪临床医学的影响,指出为适应这一转变,开展医学论言语中统计学问题的编辑鉴定研究的必要性,开展此项研究可以:1)普及医学统计知识,2)提高临床与科研水平,3)提高作者撰写与阅读能力,4)提高医学期刊质量,5)丰富编辑学研究的内涵,并指出了编辑鉴审研究的初步思路。  相似文献   
3.
临床经验性论文的优化对策   总被引:4,自引:1,他引:3  
比较全面地探讨医学期刊编辑对临床经验性论文的优化对策,包括消除消极的思维定势,提高编辑的知识“势能”,打好编辑的临床功底,增强编辑的选题组稿意识,编出期刊栏目的特色和转变偏颇的办刊观念等优化措施。这在实践意义上有助于医学编辑提高对临床经验性论文的认识,并采取有效措施提高论文和期刊质量,同时进一步丰富了科技写作、科技编辑方法论和编辑学研究的内容。  相似文献   
4.
Public libraries across the country design and deliver programs for military veterans and their families, often collaborating with other organizations and agencies. The examples were assembled from both general and specialized interviews with librarians, and literature and Internet searches, with summaries of programs assembled and written by multiple researchers. The specific limitations on the listing in this article are clearly outlined in the first section. Overall, however, the article provides a good introductory overview of what’s going on in veteran’s programs and services in America’s public libraries in over seventy libraries in forty states. We hope this list of what public libraries have organized or are doing will supply other public librarians with ideas on how to provide new services or enhance their existing ones.  相似文献   
5.

Aims

Speed reading is advertised as a way to increase reading speed without any loss in comprehension. However, research on speed reading has indicated that comprehension suffers as reading speed increases. We were specifically interested in how processes of inference generation were affected by speed reading.

Methods

We examined how reading speed influenced inference generation in typical readers, trained speed readers and participants trained to skim read passages. Passages either strongly or weakly promoted a bridging or predictive inference. After reading, participants performed a lexical decision task on either a nonword, neutral or inference‐related word.

Results

Typical readers responded to strong and weak inference words faster than neutral words. There were no statistical differences in reaction time between inference‐related and neutral words for speed and skim readers.

Conclusions

These findings provide no substantive evidence that the appropriate inferences are generated when reading at rapid speeds. Thus, speed reading may be detrimental to normal integrative comprehension processes.  相似文献   
6.
7.
Pigeons' keypecking was reinforced by food on baseline schedules of multiple variable interval (VI) x VI x and on contrast schedules of multiple VI x VI y. Deprivation of food was varied by maintaining subjects at 75%, 85%, and 95% (+/- 2%) of their free-feeding weights. Positive and negative behavioral contrast were observed. The size of the contrast was not systematically altered by changes in deprivation. Positive and negative contrast were both larger later in the session than they were earlier. Within-session decreases in responding were steeper for the baseline than for the contrast schedules for positive contrast. Within-session decreases were steeper for the contrast than for the baseline schedules for negative contrast. These results were predicted by the idea that different amounts of habituation to the reinforcer during the baseline and contrast schedules contribute to behavioral contrast. The results show that contrast occurs under conditions that reduce the effect of the following component. The results support the assumption that positive and negative contrast are produced by symmetrical theoretical variables.  相似文献   
8.
介绍了《普通高中生物课程标准(实验)》的主要内容,以及新课标对发展学生科学探究能力方面的要求。  相似文献   
9.
The academic and social integration of college students has been the focus of much recent research. The Tinto model of college student withdrawal focused on the constructs as explanation for commitment to goals and persistence. Research results suggested that perhaps reciprocal relationships existed between academic and social integration. Significant influences from academic integration to social integration and vice-versa indicated differing reciprocal effects for males and females.  相似文献   
10.
Pigeons categorized binomial samples produced by two complementary random processes. Samples were 1, 2, 4, or 8 successively presented outcomes (vertical or horizontal lines) of, in effect, tossing one of two equally likely coins. One coin (A) was biased in favor of vertical, and the other coin (B) was similarly biased in favor of horizontal. Choosing red or green stimuli presented after each sample was reinforced with food if coin A or coin B had been tossed, respectively. In that sense, choosing red or green was logically analogous to inferring that the statistical evidence reflected tossing of coin A or coin B, respectively. The statistical diagnosticity of a sample, the relative likelihood of its having been produced by a particular coin, equaled, except for sampling fluctuation, the relative frequency of reinforcement of a particular color given that sample, and was experimentally varied by the bias on the coins and by sample size. All the variables that affect optimal, formal inference about binomial samples also affected intuitive inference. But inferences were very suboptimal: “undermatching” was obtained in part due to control of categorization by the sequential structure of binomial samples. These results reveal limitations of optimality theories for animal decision making in the face of uncertainty when observations in samples are presented successively. On the other hand, they are generally compatible with molecular analyses of instrumental learning which assign an important role to the local temporal organization of events preceding reinforcement. Most generally, they show that maladaptive control over intuitive statistical inference by a variable upon which optimal performance does not depend is neither a uniquely human phenomenon nor dependent upon linguistic strategies.  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