科学数据元数据功能与内容分析

元数据以其对科学数据的描述与解释,为用户发现数据和再利用数据提供了方便。详细分析科学数据元数据的功能与内容,重点讨论用户在数据发现、数据评价过程中所关注的元数据内容,并对科学数据元数据内容的改进与完善提出展望。     

指导发现式教学模式在健美操课中的运用

论述了指导发现式教学模式在健美操课中的运用程序与实现环境等原理,并在其对健美操中的运用进行了分析.     

大学生休闲阅读调查分析与图书馆导读工作探讨

文章以高等教育环境下学生非目标性英语课外阅读作为研究对象,探讨和分析以休闲娱乐为目的的阅读行为与导向,及由此带来的信息行为能力的提高;并针对高校图书馆开展导读服务存在的困难和障碍,简略提出了开展英语课外阅读的措施方法。参考文献5。     

空前机遇 严峻挑战 创新发展——论高等继续教育的科学发展

在"为全面建成小康社会而奋斗"的伟大进程中,为了实现"建设全民学习、终身学习的学习型社会"的社会建设目标,中央做出"加快发展继续教育"的战略部署,这为我国高等继续教育带来空前的发展机遇,同时也提出了严峻的挑战。高等继续教育要肩负使命,迎难而上,深化改革,创新发展。     

Applying a multi-dimensional hedonic concept of intrinsic motivation on social tagging tools: A theoretical model and empirical validation

Participation in and adding content to social tagging tools is important for these tools to achieve their purpose of classifying and organizing information. Users of social tagging tools are driven to participate and add tags by extrinsic and intrinsic motivation. Extrinsic motivation is dominating research as a main predictor of why users use information systems. Social tagging tools, as a subset of social media tools, are distinguished by their unique social aspect that makes intrinsic motivation a potential driver for users to add tags to content. Intrinsic motivation, when applied to social tagging tools, could entail many shades that represent different users’ motives for using such tools. In this paper, we add a rich concept of intrinsic motivation to include hedonism as a main predictor of users’ behavior on social tagging tools. We empirically validate a previously proposed theoretical model of three dimensional concepts of hedonism with three components describing individuals’ hedonic state when interacting with social tagging tools: explorability, curiosity, and enjoyment. After a robust and thorough data analysis using structured equation modeling, the results confirm our theoretical model and suggest using a richer concept of enjoyment to reflect a hedonic dimension when investigating intrinsic motivation with interactive social media tools. Our validated model could be the spark of new factors that have the potential to influence user acceptance of information systems in general and in social media tools. This research contributes to the development of attitude-behavior theories that could explain users’ acceptance of dynamic web     

论新闻资源的再度开发

新闻资源的再度开发,是以辩证唯物主义认识论为依据,对已发新闻的事实再一次进行广泛深入采访,在内容上以超前的广度和深度,在形式上一般以新的体裁表现。     

Web Design Trends in Academic Libraries—A Longitudinal Study

This study examines several key design elements of 37 academic library Web sites (members of the Association of Southeastern Research Libraries) and how they have changed between 2012 and 2015. While several studies have reviewed library Web sites looking for common design elements and content, the present work may be the first to look at the design elements of a large group of library Web sites over time. This study has two main goals: to present an objective analysis of the navigation and search interface designs at research university library Web sites, and to assess the usage of Web-scale discovery systems and content management systems in libraries. Other areas explored include when sites were most recently redesigned and whether sites have adopted a mobile-friendly, responsive design. Notable findings include a very high usage of Web-scale discovery systems, an increasing adoption of open source content management systems, and increasing implementation of responsive design. Also noted was a strong and growing standardization in navigation design. This study concludes with a review of the trends and discussion of current design patterns in academic library Web sites.     

当代教育技术学研究方法若干问题的探讨

本文从教育技术学“本原性“研究对象的讨论出发,揭示了当代教育技术学研究在性质上具有“物理研究“与“事理研究“的两重性,其研究的取向在于从“基础“向“应用“的单向推演,其主要研究逻辑特性是建立在科学哲学基础之上,遵循“发现的逻辑“,其方法体系特征是科学、技术与艺术的统一。     

Virtual and Dynamic Hierarchical Architecture: an overlay network topology for discovering grid services with high performance

This paper presents an overlay network topology called Virtual and Dynamic Hierarchical Architecture (VDHA) for discovering Grid services with high performance. Service discovery based on VDHA has scalable, autonomous, efficient, reliable and quick responsive. We propose two service discovery algorithms. Full Search Query and Discovery Protocol (FSQDP) discovers the nodes that match the request message from all N nodes, which has time complexity O(logN), space complexity O(nvg) (nvg being node numbers of each virtual group), and message-cost O(N), and Domain-Specific Query and Discovery Protocol (DSQDP) searches nodes in only specific domains with time complexity O(nvg), space complexity O(nvg), and message-cost O(nvg). In this paper, we also describe VDHA, its formal definition, and Grid Group Management Protocol.     

Different ways in which students handle chance encounters in the explorative setting of a dice game

The purpose of this study is to investigate the ways in which Swedish seventh grade students (12 and 13 years old) handle chance encounters. Four groups of students working in pairs participated in the study. In the group discussions, which were tape-recorded and fully transcribed, the students were encouraged to explore strategies for winning a specifically designed dice game based on the sum of two dice. The dice game included four different set-ups of dice designed to bring to the fore different aspects of probability modelling and to offer the student the opportunity to encounter small differences in the mathematical structure of the sample space and of the probability distribution between the four different set-ups. The study describes strategies that the students use when confronted with these different set-ups, what their activities imply in terms of resources in handling random phenomena and what the dice game offers in terms of opportunities for learning probability. In order to explain such meaning-making processes the students’ activities are viewed from a perspective that takes into consideration how the students’ understanding varies with their interpretations of the situation they are confronted with, i.e., how they contextualize the different set-ups of the dice game. The results show how the students, during the course of the game, reorganize their interpretations of the mathematical content confronting them, and how a variation of guiding principles becomes the object of exploration. Approaches of extremes and a number model are described as a means for the students to identify and assign probabilities for the total of two dice.