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.     

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。     

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。     

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。     

浅谈网络环境下报纸的生存策略

文章探讨了在网络新闻日益壮大的环境下,报纸作为传统新闻媒体,该如何定位自己的发展方向、发挥出自身的核心竞争力等问题,并就报纸编辑工作如何顺应形势进行调整,从而稳固报纸在新闻媒体中的地位作了进一步探讨。     

关于弱FI-代数和弱MV-代数的一点注记

证明了弱FI－代数与BCI－代数是互相等价的。因而，可以充分利用BCI－代数的理论来研究弱FI－代数，此外，还证明弱MV－代数与MV－代数本质上也是同一概念。     

县域低碳经济发展的制约因素和路径选择——以邳州市为例

为促进人与自然的和谐发展,低碳经济已成为世界潮流,将引领全球生产模式、生活方式、价值观念和国家权益发生深刻的变革,大力发展低碳经济是我国未来发展的必然选择。在分析邳州市县域低碳经济发展的制约因素的基础上,提出了县域低碳经济发展的总体思路和政策建议。     

发电设备检修体制改革的思考

阐述了状态检修体制模式,指出了我国现行检修体制的利弊,说明了检修体制改革的必要性,并提出了推行状态检修的建议。     

助剂对负载型镍催化剂重整活性和抗积炭性能的影响

应用XRD和催化活性评价手段,考察了助剂对CH_4与CO_2重整制合成气的负载型Ni催化剂的重整活性和其抗积炭性能的影响。实验结果表明,NiO在Υ-Al_2O_3表面上最大分散量随MgO、La_2O_3助剂的添加不同程度地增大,助剂能影响负载型Ni催化剂的催化性能,MgO、La_2O_3的添加对改善Ni催化剂的重整活性和抗积炭性能有明显效果,并与助剂的种类、添加次序有关。La_2O_3助剂的突出作用表现在维持Ni为低价还原态和促进CO_2转化等方面。