External Visual Representations in Science Learning: The case of relations among system components

The present paper reports on a study that examined whether practical work can be said to have affective outcomes, and if so in what sense. The term ‘affective’ is used here to refer to the emotions, or feelings, engendered amongst pupils towards school science in general, or one of the sciences in particular. The study is based on 25 multi‐site case studies that employed a condensed fieldwork strategy. Data were collected, using tape‐recorded interviews and observational field notes, in a sample of practical lessons undertaken in English comprehensive (non‐selective) schools during Key Stages 3 and 4 (ages 11–14 years and 15–16 years, respectively). The findings suggest that whilst practical work generates short‐term engagement, it is relatively ineffective in generating motivation to study science post compulsion or longer‐term personal interest in the subject, although it is often claimed to do so. This suggests that those involved with science education need to develop a more realistic understanding of the limitations of practical work in the affective domain.     

Promotion of Reading and Early Literacy Skills in Schools: a comparison of three European countries

This article gives a short overview based on the EU High Level Group of Experts on Literacy (HLWG) report to address issues and challenges in Europe on improving literacy competencies in schools. Furthermore, an analysis is conducted focusing on the promotion of reading and early literacy skills in schools taking into account psychological and institutional learning conditions in three countries (Denmark, Germany, and France) with different outcomes in PIRLS 2011 (Progress in International Reading Literacy Study). Country comparison is conducted using multiple groups – multilevel structural equation modelling (MG-MSEM). An important finding is that policy action taken in order to evaluate and improve school effectiveness in each country must address particular needs of its educational system. Suggestions for improving reading achievement in schools are derived from the analysis.     

K~+均值在网络入侵检测中的应用研究

在K均值算法基础上,提出了改进的K均值算法(K+均值)。此方法计算每个数据对象所在区域的密度选择相互距离,最远的k个处于高密度区域的点作为初始聚类中心。将K均值算法和K+均值算法分别应用于入侵检测,试验结果表明:K+均值算法能够避免K均值算法固有的缺点,并且有比较高的检测性能。     

基于信息融合和综合集成研讨厅混合的企业竞争情报系统

针对竞争情报系统循环的不足以及情报源的特点,构建一个基于信息融合综合集成研讨厅混合的新型竞争情报系统,给出相应的技术框架和体系结构。该系统通过多源信息的融合,情报源的质量得以提高,增强企业战略决策的精度和有效性。     

敦煌变文中的语气词在武威方言中的体现

敦煌变文中的语气词主要有“着（者、咱）”和“里”、“裹”。敦煌变文中的语气词在武威方言中体现为三个语气词：“着”、“哩”和“囔”。其中“着”字在日常用语中单个使用的用例较少,一般是两个“着”重复使用;“里”、“裹”在武威方言中则分化为两个语气词：“哩”和“囔”。     

现代维语中名词构形附加成分省略现象分析

现代维语中名词构形附加成分的省略主要表现在名词数范畴,领属人称语法范畴以及格范畴的省略。现代维语中名词构形附加成分的省略可能由三个方面的原因造成：一是语言接触和语言影响;二是语言使用中的经济原则：三是句法手段的作用。本文主要从结构主义语言学角度对现代维语中名词构形附加成分的省略现象及其范围进行分析,并探讨省略出现的原因。     

2004—2010年体育类核心期刊游泳运动科学文献研究述评

运用专家访谈、文献资料、数理统计等方法对近年来我国已发表的游泳科研论文按主题、内容属性进行分类,分项统计处理,分析我国游泳运动现状,以期使人们了解我国游泳运动科研现状和进展,为我国游泳科研工作提供参考。     

云南边境少数民族县域新型农村合作经济组织发展研究

近年来,云南边境少数民族县域新型农村合作经济组织发展迅速,但整体发展质量不高,市场竞争力不强,规范程度不够,要进一步获得又好又快的可持续发展又面临许多困难。为此,需要政府的高度重视和积极参与,对其进行正确引导、规范发展,并借鉴国内外先进可行经验,找到适合该区域新型农村合作经济组织发展的路子。     

中山舰事件前后陈独秀对北伐态度变化探因

中山舰事件前陈独秀主张北伐,中山舰事件后陈独秀不主张立即北伐,从表面上看前后矛盾,其实质是一致的,即以是否对人民有利作为衡量标准。     

文学独立自觉的理论风标--汉代辞赋品评透视

汉代的辞赋品评,是真正意义上的对作家个体美文创作的文学评论。虽然政教价值观仍合理地得以延续,但它主宰文学批评的局面巳被打破,审美愉悦价值正式得到承认;赋家品评定位中的唯美倾向和辞宗赋首的推出,搁置了政教批评坚守的原道、宗经、征圣的旧准则,确立了文学自身新的审美范型和新的传统;对创作主体的情感、个性、才情以及审美把握世界的心灵妙奥的关注。是文学观念向着文学本体进一步深化的重要体现。所有这些理论景观,都标志着文学的独立自觉。并昭示着魏晋六朝文学理论批评的发展方向。