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111.
Jun Wang Maarten Clements Jie Yang Arjen P. de Vries Marcel J.T. Reinders 《Information processing & management》2010,46(1):58-70
Social media systems have encouraged end user participation in the Internet, for the purpose of storing and distributing Internet content, sharing opinions and maintaining relationships. Collaborative tagging allows users to annotate the resulting user-generated content, and enables effective retrieval of otherwise uncategorised data. However, compared to professional web content production, collaborative tagging systems face the challenge that end-users assign tags in an uncontrolled manner, resulting in unsystematic and inconsistent metadata.This paper introduces a framework for the personalization of social media systems. We pinpoint three tasks that would benefit from personalization: collaborative tagging, collaborative browsing and collaborative search. We propose a ranking model for each task that integrates the individual user’s tagging history in the recommendation of tags and content, to align its suggestions to the individual user preferences. We demonstrate on two real data sets that for all three tasks, the personalized ranking should take into account both the user’s own preference and the opinion of others. 相似文献
112.
Peer teaching in higher education: A review 总被引:1,自引:3,他引:1
In the last decade, peer teaching has gained momentum in higher education. Socio-psychological, pedagogical, economical and political considerations have all contributed to this recent interest. A number of peer-teaching models including discussion groups led by undergraduate students, proctoring (PSI), student learning groups, the learning cell, and student counseling of students (parrainage) have evolved. Several issues and problems may confront the instructor who wants to use undergraduates as teachers: selection of student partner, functions of student teacher, cooperation vs. competition, the structure of the learning situation, preparation of the student teachers, benefits of peer teaching, the role of the professor, financial aspects and instructional facilities. The evidence reviewed suggests that peer teaching, best used in conjunction with other teaching and learning methods, has great potentials for both student teacher and student learner, especially if one seeks to enhance active participation and develop skills in cooperation and social interaction.
A student's colleagues often represent the least recognized, least used and possibly the most important of all the resources available to him. (Mackenzie et al., 1970).Portions of this paper have been presented by the second author at the International Symposium on Ingenieurpädagogik '75, 14–16 April, 1975, in Klagenfurt, Austria and at the International Conference on Improving University Teaching, 9–11 May, 1975, in Heidelberg, Germany. 相似文献
113.
Marcel Verhoeven M. Bjørn von Rimscha Isabelle Krebs Gabriele Siegert Christoph Sommer 《媒体管理杂志》2018,20(1):51-77
Research on media success factors is a fragmented field. Definitions, measures, and methods vary, and findings are often inconsistent. In an attempt to fill this perceived research gap, we distilled generic success factors of media products from the literature. Guided by theory and empirical findings, these factors were aggregated to complex concepts, building blocks of success that we further investigated in an exploratory qualitative study. We found that the building blocks are applicable to all types of media, independent of seriality and content types of media products. Subsequently the research question of this article is: Which building blocks of success are most important for media products? To answer this question, we conducted an online survey of 255 media professionals in print, audio-visual, and online media in Austria, Germany and Switzerland. To analyze our data, we deployed qualitative comparative analysis, a method based on set theory that is suitable to investigate complex causality. We conclude that four building blocks are necessary for success: “good” distribution, environmental orientation, form/design, and human resources are preconditions for achieving success in terms of audience market share. In addition, three patterns emerge in the sufficient paths (combinations of building blocks) to success. Which route to success a media product shows can be related to the width of its topical scope and the corresponding projected audience size. 相似文献
114.
Using a quasi‐experimental pretest‐posttest control group design, the study investigated the educational effects of a six‐programme schools television series designed to encourage children aged 10‐12 to become more discriminating consumers of violent television crime series. Results indicated that the schools television project led to an increase in factual knowledge of differences between violence as depicted in crime series and real‐life violence, and a decrease in the perceived realism of violent television programmes. Children reacted very positively to the schools broadcasts and found them instructive and useful. Teachers reacted positively to the broadcasts and the related materials (student workbook and teacher's manual) that accompanied the programmes. 相似文献
115.
Recognition of the important role television plays in children's lives has led during the 1970s to the beginnings of an effort to modify television's impact on children by teaching them how to manage their viewing behavior, how to understand the medium, and how to evaluate its content (so-called, “critical television viewing skills”). The objectives pursued by critical viewing curricula are discussed, and it is argued that critical viewing is strongly related to critical thinking. A review of studies of the effects achieved by television curricula indicates that television curricula can be effective in increasing children's knowledge of the medium and in altering children's perceptions of television content. However, there is little evidence that curricula can modify television's effects on children's attitudes and behaviors, and curricular effects on children's viewing behavior at home have yet to be demonstrated. The research conducted is evaluated, and suggestions are made for future work in this area. 相似文献
116.
Much of contemporary laterality research has been motivated by a need to increase the accuracy with which individuals can
be classified as left- or right-hemisphere dominant for speech and language. Efforts to improve the classification accuracy
of laterality methods have led not only to the refinement of laterality methods but also to the discovery of some of the mechanisms
that contribute to asymmetric performance. Despite these advances, laterality methods still do not lead to definitive conclusions
about hemispheric specialization in the individual case, and special caution must be used when interpreting results for individual
dyslexic children. Event-related measurements of cerebral metabolism, still in the development phase, promise to complement
but not replace behavioral laterality methods. 相似文献
117.
Heinke Röbken Marcel Schütz Pia Lehmkuhl 《Journal of educational administration and history》2019,51(4):316-329
ABSTRACTIn this article, we analyse the implementation and change of a specific school reform in Germany using the example of external school evaluation in Lower Saxony: the school inspection. We investigate how and why a newly implemented reform is itself subject to reform shortly afterwards. We begin with a historical background of German school reforms over the last 40 years. Then, we consider school reforms through the lens of organisational theory. Finally, we combine the historical and theoretical perspectives on school reforms placing particular emphasis on more recent developments in external school evaluation. Based on these considerations, we elaborate some theses on reform and routine in schools. 相似文献
118.
119.
In this article, the authors reflect on the results of their previous research at cooperation schools in the Netherlands, where students and teachers from nonaffiliated and Christian backgrounds come together. Dewey’s perspective on educating democratic values is combined with empirical results of this research, answering the question what Dewey’s concept contributes to the reflection on the relation between values and religious education at these schools. This article shows that this reflection and the implementation of value-based religious education offers opportunities for schools that face the challenge of practicing encounter between students from different backgrounds. 相似文献
120.
We analyse the difference between the averaged (average of ratios) and globalised (ratio of averages) author-level aggregation approaches based on various paper-level metrics. We evaluate the aggregation variants in terms of (1) their field bias on the author-level and (2) their ranking performance based on test data that comprises researchers that have received fellowship status or won prestigious awards for their long-lasting and high-impact research contributions to their fields. We consider various direct and indirect paper-level metrics with different normalisation approaches (mean-based, percentile-based, co-citation-based) and focus on the bias and performance differences between the two aggregation variants of each metric. We execute all experiments on two publication databases which use different field categorisation schemes. The first uses author-chosen concept categories and covers the computer science literature. The second covers all disciplines and categorises papers by keywords based on their contents. In terms of bias, we find relatively little difference between the averaged and globalised variants. For mean-normalised citation counts we find no significant difference between the two approaches. However, the percentile-based metric shows less bias with the globalised approach, except for citation windows smaller than four years. On the multi-disciplinary database, PageRank has the overall least bias but shows no significant difference between the two aggregation variants. The averaged variants of most metrics have less bias for small citation windows. For larger citation windows the differences are smaller and are mostly insignificant.In terms of ranking the well-established researchers who have received accolades for their high-impact contributions, we find that the globalised variant of the percentile-based metric performs better. Again we find no significant differences between the globalised and averaged variants based on citation counts and PageRank scores. 相似文献