科学技术可视化

随着科学技术的不断发展,新兴技术大量涌现,技术的发展呈现出学科内纵向深入,学科间交叉融合的新特点与新趋势。因此,如何及时把握新兴技术的动态,寻找发展路径,已成为当前科学研究的热点问题之一,基于科学学理论和传统技术评估与预测研究,总结提出了“科学技术可视化”概念,从“科学技术可视化”研究的必要性出发,综合评述了当前国内外“科学技术可视化”的发展状况,并构建了一套适用于“科学技术可视化”图谱的分类体系与辅助决策框架,为科技决策中“科学技术可视化”方法的应用提供了依据。同时,还总结了当前“科学技术可视化”研究中具有代表意义的经典图谱,并总结出了一套“图法”与“图空间”概念,为如何绘制“科学技术可视化”图谱提供了参考。     

运动鞋生物力学性能评价指标体系的构建

通过查阅有关运动鞋性能的文献资料,根据运动技术专项设计和需要,总结出高科技含量运动鞋应具有的性能,并以慢跑运动鞋为例,结合中长跑运动的特征,运用层次分析法,构建运动鞋生物力学性能评价指标体系,提出按其耐穿性、安全保护性、舒适性以及运动专项性等几方面对运动鞋性能进行评价。     

Creating the effective school : The role of evaluation

The concept of children's rights evolved during the 1980s giving prominence to the role of children as active participants in the construction of their lives. The rhetoric of children's rights has emerged as an important consideration in all policy and practice relating to children. Implementation of children's rights in practice is necessary to maximise their potential to improve the lives of children. This paper presents an argument for the importance of giving meaning to the implementation of children's rights in the Individual Education Plan (IEP) process for pupils with autistic spectrum disorder (ASD) in Ireland. The study, on which this paper is based, was conducted in two stages using both qualitative and quantitative approaches. The first stage focused on the development of a set of indicators for the IEP process based on a children's rights framework and informed by the perspectives of children, parents and teachers, alongside the literature on best practice on IEPs. In the second stage, a survey questionnaire was designed, based on the children's rights indicators, to evaluate current IEP practice in Ireland for pupils with autistic spectrum disorder. This article outlines the development of a set of indicators for the IEP process. It also presents findings of the survey which evaluates current practice in relation to the IEP process for pupils with ASD in Ireland. The article focuses specifically on Article 3(1) of the United Nations Convention on the Rights of the Child (UNCRC) which stipulates that in all actions concerning children, ‘the best interests of the child shall be a primary consideration’.     

Assessing the Library Homepages of COPLAC Institutions for Section 508 Accessibility Errors: Who's Accessible,Who's Not,and How the Online WebXACT Assessment Tool Can Help

ABSTRACT

The Council on Public Liberal Arts Colleges (COPLAC) libraries websites were assessed for Section 508 errors using the online WebXACT tool. Only three of the twenty-one institutions (14%) had zero accessibility errors. Eighty-six percent of the COPLAC institutions had an average of 1.24 errors. Section 508 compliance is required for institutions receiving federal funding. While this study shows the need to correct the existing errors, the low error rate shows that COPLAC institutions have generally been conscious of accessibility standards and are working toward achieving fully accessible websites. Studies of the connections between average accessibility errors and the geographic locations of these institutions, the amount of federal funding received, and size were inconclusive. The main aim of the study is to demonstrate the need to check library websites using the free WebXACT tool. This tool offers suggestions for accessibility that should serve to decrease the number of pages that are inaccessible to patrons.     

<Emphasis Type="Italic">Agrobacterium</Emphasis>-mediated transformation of herbicide resistance in creeping bentgrass and colonial bentgrass

Embryogenic calli were induced from the seeds of creeping bentgrass (Agrostis palustris Huds.) cv. Regent and colonial bentgrass (Agrostis Tenuis Sibth. Fl. Oxen.) cv. Tiger. The embryogenic calli were precultured on fresh medium for 4–7 days and then co-cultivated withAgrobacterium tumefaciens, LBA4404. which contains plasmid vector-pSBGM harboring bar coding region, synthetic green fluorescent protein (sGFP) coding region and matrix attachment region (MAR). After 3 days of co-cultivation, the calli were washed thoroughly and transferred to MS medium containing 2 mg/L of 2, 4-D, 12–15 mg/L phosphinothricin (PPT) and 250 mg/L of cefotaxime. After 2–3 months of selection, the actively growing calli of ‘Regent’ and ‘Tiger’ were transferred to MS medium with 12–15 mg/L PPT and 250 mg/L cefotazime for regeneration. The putative transformants were maintained on MS medium with 3 mg/L PPT for long period but control died within 1 month. After establishing in greenhouse, the transformants also showed strong resistance to 0.4% of herbicide Basta but control plants died within 2 weeks. Under confocal microscope, both young leaves and roots showed significant GFP expression. PCR analysis revealed the presence of a DNA fragment of GFP gene at the expected size (380 bp) in the transformants and its absence in a randomly selected control plant.     

学生基础能力国际研究项目（PISA）的教育启示

PISA评价作为大规模的学生基础能力国际比较研究,是目前世界上最有影响力的国际学生评价项目之一。PISA应用了一系列目前世界上先进的教育测量理论和成熟的操作模式来评价15岁在校生进入未来社会所必需的知识、技能的获得情况,其评价结果具有高度的可比性、可信性和有效性,受到了各国政府的重视,被视为检验各国教育体制和未来人才竞争的重要指标。PISA项目为教育改革与发展提供了有益的启示,被誉为“教育界的世界杯”,是国际比较教育研究的重要成果。     

Phenol Tert-Butylation Catalyzed by Zeolite H-Mordenite

Para-tert-butyl phenol (p-TBP) and 2,4-di-tert-butyl phenol ( 2,4-DTBP) are wi.dely used for the preparation of antioxidants. Zeolite catalysts showed good performance for the synthesis of p-TBP and 2,4-DTBP. In this work, zeolite H-mordenite (HM) catalyst was prepared and the alkylation of phenol with tert-butyl alcohol over zeolite HM catalyst was investigated at different reaction conditions. It is found that increasing temperature enhances the selectivity to p-TBP and the optimum reaction temperature for phenol conversion is 438 K. Increasing flow rate decreases phenol conversion apparently while the selectivity to p-TBP has a little increase. The suitable tert-butyl alcohol/phenol molar ratio is 2. Lower alcohol/phenol molar ratios are beneficial to p-TBP while higher ones are helpful for producing 2,4-DTBP.     

有氧运动和大豆多肽对高脂饮食大鼠胰岛素抵抗形成和血脂代谢的干预作用

目的 :探讨有氧运动和补充大豆多肽对高脂饮食大鼠胰岛素抵抗形成的干预作用及其机制.方法 :在给SD大鼠喂饲高脂饮食的同时,进行10周的有氧运动锻炼或/和补充大豆多肽,实验结束时测定空腹血糖(FPG)、空腹胰岛素(FINS)、血清甘油三酯(TG)、胆固醇(TC)和游离脂肪酸(FFA)等指标,并计算胰岛素敏感性指数(ISI)、稳态模型-IR指数(HOMA-IR).结果:1)10周的高脂饮食可使大鼠FPG、FINS、HOMA-IR指数显著升高,而ISI指数显著降低;2)在高脂饮食诱导大鼠IR形成的同时,进行10周60 min的有氧运动锻炼或补充SPH,可以显著降低高脂饮食大鼠FPG、FINS、HOMA-IR指数,提高ISI指数;与此同时,运动联合补充SPH可使高脂饮食大鼠FINS、HOMA-IR指数进一步降低,跚进一步升高,但无显著性差异;3)HF组大鼠血清TG、TC和FFA显著高于对照组,运动训练或补充SPH可使高脂饮食大鼠血清TG、TC和FFA含量显著降低,且具有显著的交互作用.结论 :1)10周的高脂饮食可以诱导大鼠IR的形成;2)运动训练或补充SPH可以显著地预防高脂饮食大鼠IR的形成,而且,运动锻炼联合补充SPH在一定程度上对预防高脂饮食大鼠IR的形成具有促进作用.3)高脂饮食诱导大鼠m的形成机制与高脂饮食大鼠血脂代谢紊乱有关;而运动训练或补充SPH可以改善血脂代谢来预防m的形成.     

基于J2EE的体育管理信息系统研究

论述体育管理在高校管理中的重要性以及和未来校园资源计划(URP)的关系。为了适应未来校园资源计划(URP)的发展，在分析了J2EE平台优势的基础上，设计出了基于J2EE的体育管理信息系统的构架；最后，给出了J2EE平台上开发体育管理信息系统的方法。