数据驱动的微信用户信息行为时间特征研究     

张大勇  孔洪新  许磊  景东 《图书情报工作》2019,63(20):104-111

[目的/意义]相对于传统的信息行为分析，数据驱动的信息行为研究更注重数据的外在性与客观性，所得的结果能够更为全面地认识用户信息行为本质特征。[方法/过程]通过自行构建的APP实现对微信用户分享和阅读行为记录的采集，并对微信用户信息行为的时间特性进行系统的分析。[结果/结论]结果表明：微信用户日常信息行为存在显著的假日效应，但是在信息行为时间间隔分布上存在明显厚尾现象和很强的阵发性，预示着微信用户信息行为具有较高的复杂性和不确定性，无法对其产生过程实现有效的预测；此外，微信用户所分享的内容具有很强的时效性，多数内容在微信中能够得到及时的传播，但传播链长度显著受分享内容主题的影响。  相似文献   

‘Nowhere that fits’: the dilemmas of school choice for parents of children with Statements of special educational needs (SEN) in England     

Meanu Bajwa‐Patel  Cristina Devecchi 《Support for Learning》2014,29(2):117-135

Giving parents a choice with regard to their children's education has been central to the political discourse of school reform at least since the 1988 Education Reform Act (ERA). With regard to children with a Statement of special educational needs (SSEN), a plethora of policies and laws have given parents the right not only to choose a school, but also to appeal to decisions in the best interest of their children. Yet, despite the discourse of school choice, the implementation and practice of such reforms is neither assured nor simple. Participants in this study indicated that they have little choice of suitable provision and are having to compromise either the academic or the social aspects of their child's schooling. This article argues that for many parents whose children have a Statement of SEN, the choice of a school is often a dilemma, as ‘nowhere seems to fit’.  相似文献   

信息技术在工科远程教育中的应用研究   总被引：1，自引：0，他引：1  

陈东 《中国远程教育(综合版)》2011,(4)

本文在文献分析和对我国网络教育精品课程案例调研的基础上,对工科远程教育中的可用技术进行了综合分析,从网络技术和移动通信技术两个主要方面介绍了它们的相关应用,包括一些典型的项目、实验及其研究成果,对进一步推动和提升信息技术在我国工科远程教育的应用研究具有参照意义。  相似文献   

Improvement of Word Problem Solving and Basic Mathematics Competencies in Students with Attention Deficit/Hyperactivity Disorder and Mathematical Learning Difficulties     

Paloma Gonzlez‐Castro  Marisol Cueli  Dbora Areces  Celestino Rodríguez  Georgios Sideridis 《Learning disabilities research & practice》2016,31(3):142-155

Problem solving represents a salient deficit in students with mathematical learning difficulties (MLD) primarily caused by difficulties with informal and formal mathematical competencies. This study proposes a computerized intervention tool, the integrated dynamic representation (IDR), for enhancing the early learning of basic mathematical competencies and word problem solving skills. The goal was to compare and contrast the effects of IDR on the acquisition of informal and formal mathematical competencies in students with attention deficit/hyperactivity disorder (ADHD) and MLD. Participants were 216 students (6–9 years), who were classified into three groups: ADHD (n = 72), MLD (n = 82), ADHD and MLD (n = 62). They completed the Test of Early Mathematics Ability (Third Edition). The results showed that all three diagnosed groups improved significantly postintervention in all mathematical competencies, with the MLD‐only group benefiting the most at posttest.  相似文献   

哈尔滨市中老年人健康运动调查与运动处方探讨     

韩国纲  李东 《冰雪运动》2017,39(2)

采用文献资料、问卷调查、数理统计等方法,对哈尔滨市中老年人健康运动状况进行调查.研究发现,哈尔滨市中老年人健康运动缺乏科学指导,运动项目和运动场所的选择影响中老年人的健康水平.针对中老年人容易患有的疾病和健康锻炼需要,提出了不同的健康运动处方.建议培养专业的健康运动指导人才,完善税费优惠政策和基础设施建设,建立健全健康运动咨询系统等,促进中老年人健康运动的有效开展.  相似文献   

融合微信平台的高校体育教学的探索——以上海理工大学为例     

胡泽勇  倪伟  董海军 《安徽体育科技》2017,38(4)

采用专家访谈法和问卷调查法等方法,阐述了高校体育教学中融合微信的优势和担忧,同时也对微信在促进体育教学班级建设、提升体育教学效率、加速体育教学目标实现等方面进行分析,为推动高校体育教学融合信息手段提供一定的借鉴和指导.  相似文献   

浅析水库兴利库容的计算方法     

赵利东  董盈红  杨树伟 《保山学院学报》2016,(5):38-40

水库作为一种重要的防洪工程,建成后可在时间和数量上对水资源重新进行分配,以达到“兴利除害”的目的;利用水库进行径流调节,其调节能力的大小直接取决于水库的兴利库容,简要分析了年调节水库以及多年调节水库的兴利库容计算方法,并提供了算例.  相似文献   

Teacher education students' reflections on how problem‐based learning has changed their mental models about teaching and learning     

Helen Askell‐Williams  Rosalind Murray‐Harvey  Michael J. Lawson 《The Teacher Educator》2013,48(4):237-263

Abstract

Students develop robust mental models of teaching and learning during their school years, and as such, often teach as they were taught—possibly perpetuating practices that limit intellectual inquiry in classrooms. This paper reports on an analysis, using a conceptual framework and NUD?1ST software, of a cohort of 3rd‐year teacher education students' reflections on changes in their mental models following their experiences in a problem‐based learning (PBL) topic. Results provide evidence that students do report changing mental models in areas such as (a) the value of case studies for engaging with subject content, motivating learning, and connecting theory with practice; (b) self‐reflection and peer collaboration for cognitive and professional growth; and (c) processes of inquiry for developing self‐regulated learning practices.  相似文献   

Implications for improving access and outcomes for individuals with disabilities in postsecondary distance education     

Weol Soon Kim‐Rupnow  Peter W. Dowrick  Laure S. Burke 《The American journal of distance education》2013,27(1):25-40

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区域公共图书馆的评估与思考——以西南地区为考察点     

董渊  陈庆苏  程结晶 《现代情报》2010,30(9):96-100

本文通过对西南地区区域公共图书馆的基本现状进行调查分析,结合西南地区特点,根据区域公共图书馆的基本特性,借鉴发达地区公共图书馆建设的体制与经验,提出西南地区各类公共图书馆建设体制上存在的问题和建议,促进公共图书馆的和谐服务。  相似文献