The Hong Kong Behaviour Checklist for Primary Students: Developing a brief dyslexia screening measure

The authors report on the development of a brief dyslexia screening measure based on revising the 65-item Hong Kong Behaviour Checklist of Specific Learning Difficulties in Reading and Writing. Teachers’ ratings of 1063 primary students aged 6–14 years on the behaviour checklist provided data for its psychometric evaluation using traditional measurement and Rasch measurement model analyses. Rasch scaling suggested that the revised 36-item checklist could be regarded as a unidimensional scale that assesses global dyslexic dysfunction, and receiver operating characteristics analysis suggested that a score of 18 could be an optimal cut-off score when it is used as a dyslexia screening measure. The validity of this revised checklist was supported by its substantial and significant correlations with external measures of literacy and cognitive skills. Implications of the findings for the use of adaptive testing to provide an effective procedure for screening are discussed.     

论学报出版的数字化转型

传统的纸质印刷出版物在数字时代发生了重大变化,电子出版物、网络出版物相继问世,学报编辑出版的工作流程完全可以依赖于计算机和网络技术实现数字化出版,学报的数字出版具有编辑制作过程数字化和终端产品形态数字化双重含义.与学报出版密切相关的管理信息系统、条形码技术、电子轻印刷技术、数据安全技术等数字技术,已经在编辑实践中得以广泛应用.数字技术为缩短学报出版周期提供可能,是发展电子版学术期刊的必要条件,为文献检索自动化奠定了基础,并支持学报的网络传输和出版,数字技术应成为学报编辑的必修课.     

RGB POV在点阵旋转屏中的应用及其电源解决方案

为了研究并优化RGB发光二极管旋转显示屏及其电源解决方案,在系统仿真研究的基础上,设计并改善了无线能量传送电路、无线能量接收电路以及低电压单片机控制系统,在Keil-汇编语言环境下编写了单片机控制程序,制作出PCB电路板并进行了软硬件调试。实验结果表明:所设计的RGB发光二极管旋转显示屏具有良好实用性,其无线能量传送的供电方案完美解决了电源问题,为产品化提供了有力支持。     

WCDMA射频子系统硬件功能分析与设计

对于无线通信网络而言,最关键也是最困难的是无线信号的处理,它必须考虑包括信号质量、覆盖范围、数据传输速率、网络容量、保密性等诸多因素。WCDMA网络的无线信号处理在其射频子系统中完成,文章在研究3GPP2规范的基础上总结了射频子系统硬件要实现的功能,提供了实现这些功能的总体设计方案,可以为厂商进行WCDMA射频子系统设计时提供参考。按照这一方案设计出的试验网经过建网实地测试,得到的参数基本达到规范的要求。     

"校园一卡通"建设

“数字化校园”作为校园建设的重要内容，被越来越多的高校所重视，“校园一卡通”是数字化校园中使用最多、最频繁的重要手段和介质之一，也是数字化校园建设的切入点。本文从“校园一卡通”系统的建设目标、指导思想、基本原则、总体框架四个方面对数字化校园与“校园一卡通”建设的关系进行一些探讨。     

对当代留学生文学的再考察

随着大批留学生的出现，涌现出了大量的留学生文学作品，对这种留学生文化现象，批评家们持不同的看法，而褒曼的表述理论有助于我们从表术者，接受者，表述环境等方面对当代留学生文学进行考察。     

2.5Gbit/s 0.35μm CMOS光纤通信用收发全集成电路

采用0.35μm CMOS工艺设计2.5 Gbit/s速率光纤通信用收发全集成电路.发射部分包括复接和激光驱动电路, 完成4路622 Mbit/s随机信号输入、1路2.5 Gbit/s驱动信号输出的功能; 接收部分完成1路2.5 Gbit/s微弱随机信号输入、 4路622 Mbit/s分接输出功能.主要电路包括前置放大、限幅放大、时钟恢复、数据判决和1: 4分接. 测试结果显示, 2.5 Gbit/s光纤通信用发射芯片逻辑功能正确, 激光驱动器输出数据眼图10%～90%上升、下降沿时间分别为211.1 ps和200 ps; 2.5 Gbit/s光纤通信用接收芯片接收灵敏度优于20 mV, 恢复出的数据和时钟分别经过1: 4数据分接和1: 4时钟分频后, 相位抖动的均方根值分别为15.6 ps和1.9 ps. 两芯片均适用于2.5 Gbit/s速率光纤通信系统.     

Drawing for others: influence of referential intention in early production of drawings / Dibujar para otros: influencia de la intencionalidad referencial en la producción temprana de dibujos

This study examines if and how the presence of an adult as a receptive agent of children’s drawings has an effect on the early production of pictorial symbols by emphasizing the children’s referential intention as drawers. To this end, we compared three-year-old children’s representational drawings with a model in four experimental conditions, three conditions with an adult as a receptive agent and one condition without a receiver. In the conditions with a receiver (Linguistic Feedback, Graphic Demonstration and Graphic Product) children were explicitly asked to draw for an adult, who had to use the children’s pictures to find hidden objects in identical boxes; the conditions differed in the adult’s actions with non-representational drawings. The results indicate that the presence of the receiver had an impact on representational production only when the adult demonstrated how to create the drawings with the intent of communicating the identity of the objects (Graphic Demonstration). Although drawing is typically viewed as a solitary activity, these results suggest that representational drawings may emerge in communicative contexts between drawers and receivers.     

论互动传播对传统媒体的影响

互动传播是指媒体既充当传者又充当受众,传统的传受双方在不同的传播时段、环节能够实现角色互换。互动传播是时代发展的必然,传统媒体——报纸、电视、广播在内容与形式、管理与运营等方面都在向互动传播转化。互动传播将促使传统媒体与网络进一步结合,促使传播由“广播”向“窄播”转化,促使媒体进一步增强受众意识、平等意识、服务意识,促使受众增强主动性,分享传播权利。     

海南大学数学化图书馆建设初探

文章讨论了目前数字化图书馆建设所使用的新技术及当前国际数字化图书馆的建设发展文向，并结合海南大学图书馆目前的现状，提出了海南大学数字化图书馆的建设及发展思路。文章对数字化图书馆建设牵涉到的图书资料数字化、优化的信息检索、网络信息化建设、数字化信息的INTERNET发布及数字化信息的知识产权保护等问题作了探索性研究。