A long-term experiment to investigate the relationships between high school students’ perceptions of mobile learning and peer interaction and higher-order thinking tendencies

In this study, a one-year program was conducted to investigate the relationships between students’ perceptions of mobile learning and their tendencies of peer interaction and higher-order thinking in issue-based mobile learning activities. To achieve the research objective, a survey consisting of eight scales, namely, usability, continuity, adaptive content, collaboration, communication, problem-solving, critical thinking and creativity, was developed. A total of 658 students from 38 high schools in Taiwan filled in the questionnaire after experiencing issue-based mobile learning activities. From the exploratory and confirmatory factor analyses, it was found that the questionnaire had high reliability and validity. The structural equation model further revealed that the provision of adaptive content in the mobile learning had positive impacts on the students’ tendency to interact with peers (i.e., collaboration and communication), which further affected their tendency to engage in higher-order thinking (i.e., problem-solving, critical thinking, and creativity). The findings of this study provide a good reference for researchers and school teachers who intend to promote mobile learning in school settings.     

Pedagogical practices of NetNZ teachers for supporting online distance learners

A supportive online learning environment entails teachers using effective pedagogical practices to meet the needs of their students and developing a positive teacher–student relationship to foster learner motivation and engagement. This paper reports a study investigating how 32 secondary teachers in New Zealand taught their online distance classes and how they related to their students. These classes were administered by NetNZ, an online distance education community. An online survey conducted in 2016 found that NetNZ teachers used inquiry-based practices including flipped learning and knowledge-building pedagogies to support agency, autonomy, collaboration, and community development. They also used synchronous and asynchronous communication technologies to overcome barriers of relationship building in online settings. NetNZ was unique in delivering distance education in the New Zealand context in that it used a community approach to encourage a more active participation of its member schools and teachers in delivering distance courses to secondary students.     

面向学生专业创新能力培养的交通设计课程教学改革探索

车联网、无人驾驶等交通领域的科技创新大量涌现,这在一定程度上对交通运输专业学生的专业创新能力培养提出一定的挑战,也创造了一定的机遇。文章以提升学生专业创新能力为目标,通过对学生创新情况的抽样调查和分析,以“交通工程设施设计”课程为例,从教学内容和教学方法两方面进行教学改革探索和实践,以期为新时代背景下的交通设计类课程教学改革提供参考与借鉴。     

Hester Prynne,a Rebel Against Puritanism

《红字》是十九世纪美国小说家那撒尼尔·霍桑的代表作。书中女主人公海斯特·白兰不顾清教主义的束缚,与牧师丁梅斯代尔相爱,被视为“通奸”。本文从海斯特·白兰的心理和行动分析她作为一个清教主义叛逆者的形象。     

2N＋1进制同步循环码计数器设计

本文推导了任意2^n进制循环码计数器的设计公式，并在此基础上分析了2N 1进制同步循环码计数器的构成方法。通过设计实例表明，用此方法设计2N 1进制同步循环码计数器具有使用方便，设计迅速等优点和一定的实用意义。     

建立AutoCAD与ArcSDE之间的桥梁--基于ArcSDE CAD Client的动态数据入库解决方案

随着GIS的发展和广泛应用，越来越多的单位选择了ESRI AreGIS的技术路线，开始采用AreSDE作为其数据管理平台．这些单位在更换数据管理平台时需要把现有数据迁移或转换到AreSDE中，同时应用系统需要进行部分的修改或在新平台下重新开发，然而很多设计部门仍然使用AutoCAD设计，他们在报建审批时提供的设计图形仍然是DWG／DXF格式的电子数据，为此需要解决AutoCAD和ArcSDE的数据动态交换问题．     

Information and communication technology (ICT) in secondary schools: the role of the computer coordinator

A study was conducted in 2002 to evaluate the use of information and communication technology (ICT) in 21 secondary schools in one region of New Zealand. As part of the study, the role of the ICT coordinator was investigated. All the ICT coordinators were surveyed and 14 of them were interviewed in‐depth. It is found that they were all well‐equipped to take up a significant leadership role in their schools and some of them have already demonstrated visible leadership. This paper also identifies some obstacles that have reduced their effective leadership in ICT use in their schools.     

职业院校计算机教学模式探索

为适应当前市场经济的发展和教育改革的顺利进行,培养社会需要的实用型人才已成为职业院校所关注的焦点问题,计算机作为职业院校实践性较强的学科,其教学模式也就成为计算机教师不断探索和思索的问题。     

图书馆与海峡西岸经济区建设

海峡西岸经济区的提出,对图书馆的发展既是一次挑战,也是一次机遇。图书馆在海峡西岸经济区建设中具有其他文化设施不可替代的作用。文章阐述了图书馆在海峡西岸经济区建设中的作用,并就图书馆如何为海峡西岸经济区建设提供服务提出了自己的看法。     

Effects of osmotic stress on antioxidant enzymes activities in leaf discs of P<Subscript>SAG12</Subscript>-<Emphasis Type="Italic">IPT</Emphasis> modified gerbera

Leaf senescence is often caused by water deficit and the chimeric gene PSA612-1PT is an auto-regulated gene delaying leaf senescence. Using in vitro leaf discs culture system, the changes of contents of chlorophylls, carotenoids, soluble protein and thiobarbituric acid reactive substance （TBARS） and antioxidant enzymes activities were investigated during leaf senescence of PSA612-1PT modified gerbera induced by osmotic stress compared with the control plant （wild type）. Leaf discs were incubated in 20%, 40% （w/v） polyethylene glycol （PEG） 6 000 nutrient solution for 20 h under continuous light [ 130 μmol/（m^2·s）]. The results showed that the contents of chlorophylls, carotenoids and soluble protein were decreased by osmotic stress with the decrease being more pronounced at 40% PEG, but that, at the same PEG concentration the decrease in the transgenic plants was significantly lower than that in the control plant. The activities of superoxide dismutase （SOD）, catalases （CAT）, ascorbate peroxidase （APX）, guaiacol peroxidase （GPX） and dehydroascorbate reductase （DHAR） were stimulated by PEG treatment. However, the increases were higher in PSA612-IPT transgenic plants than in the control plants, particularly at 40% PEG treatment. Lipid peroxidation （TBARS content） was increased by PEG treatment with the increase being much lower in transgenic plant than in the control plant. It could be concluded that the increases in the activities ofantioxidant enzymes including SOD, CAT, APX, GPX and DHAR were responsible for the delay of leaf senescence induced by osmotic stress.