基于.NET的XQuery处理器网站的实现与应用

XML文档通常用于数据的描述、存储和交换，缺乏有效的信息查询手段将限制其进一步的应用。本文简介了XML查询语言XQuery，探讨了基于ASP.NET的XQuery处理器网站的功能和实现，描述了.NET平台下XQuery处理器的技术要点和实现代码，给出并分析了XQuery在图书管理中的几个应用实例。     

云计算环境下数字图书馆信息安全研究

云计算技术的迅速发展给图书馆的管理与服务带来深刘变革,给互联网环境下数字图书馆信息资源中心作用的发挥带来了机遇。但同时因为云计算作为一种新技术,还存在许多欠缺和问题,而云计算的安全问题是制约它的应用与发展的一个核心问题。云计算环境下的数字图书馆则同样面临着更为严峻的信息安全问题。针对一系列的安全问题,文章提出云环境下数字图书馆信息安全机制。     

综合性大学在校生移动阅读行为特征研究——基于用户体验的视角

采用用户体验、追踪访谈等实证研究方法,以武汉大学移动图书馆为例,从阅读时间、获取方式、阅读内容、阅读便利4个维度研究发现用户移动阅读认知和体验的行为特点：实验前对图书馆移动阅读服务了解少;实验者随时随地进行碎片化阅读,但受WiFi热点分布影响;对休闲娱乐类资源粘性强,对学术性内容阅读较少。基于此,为综合性高校图书馆移动阅读服务设计优化提出建议。     

本体与关联数据驱动的图书馆信息资源语义整合方法及其测评

探索语义网技术在图书馆信息资源整合中的应用。 首先,提出一个本体与关联数据驱动的资源语义整合框架, 实现：①图书馆中不同格式、不同类型文献资源的整合;②不同数据集合中信息资源的语义整合;③图书馆馆藏资源与外界相关资源的链接与集成, 从而构成一个可无限延伸与扩展的开放的资源整合体系。其次,构建一个资源整合演示系统。 最后,将该系统与使用传统资源整合方式的CALIS OPAC系统和CNKI进行实验对比。     

论应用文写作教学改革需要“手捧空花盆”

当下大量探讨《应用文写作》课如何进行教学改革的论文都循着主流意识将情境模拟、项目驱动和开展研究性学习等方法引进应用文写作教学过程。本文从宏观的角度在改革方向上充分肯定以上系列方法,同时在微观上对以上措施的可操作性提出了质疑,对一味强调这些方法而忽略动笔练习这一重要环节提出了质疑,并指出应遵重写作课的自身特点,最终必须落实到多写多练上,才能正真提高写作水平。     

Automated Scoring of Constructed‐Response Science Items: Prospects and Obstacles

Content‐based automated scoring has been applied in a variety of science domains. However, many prior applications involved simplified scoring rubrics without considering rubrics representing multiple levels of understanding. This study tested a concept‐based scoring tool for content‐based scoring, c‐rater?, for four science items with rubrics aiming to differentiate among multiple levels of understanding. The items showed moderate to good agreement with human scores. The findings suggest that automated scoring has the potential to score constructed‐response items with complex scoring rubrics, but in its current design cannot replace human raters. This article discusses sources of disagreement and factors that could potentially improve the accuracy of concept‐based automated scoring.     

A Vocabulary Learning Tool for L2 Undergraduates Reading Science and Technology Textbooks

Students of English as a second language who major in science and technology use English-language textbooks to ensure that they can read English materials upon graduation. Research indicates that teachers spend little time helping these students on the linguistic complexity of such textbooks. Vocabulary, grammar, and article structure are elements of this complexity, but to many students, these elements can be akin to locked doors. This study presents MyVLS-Reader, which focuses on unlocking the first of these doors—vocabulary—while assisting in reading. With explicit vocabulary learning, students learn and memorize individual vocabulary, but the context is lost if the depth of learning discards context. In implicit vocabulary learning, students acquire vocabulary through repeated exposure to contexts, but repeated encounters with new words are required. Few e-learning systems combine both vocabulary-learning approaches. MyVLS-Reader achieves such synergy by (1) using a keyword setting to provide context-matched vocabulary explanation while reading and (2) embedding multiple learning choices, such as keyword setting, the review and memorization of explicit vocabulary, and the option to ask instructors. This study includes two rounds of evaluations: (1) an evaluation of the learning achievements of control and treatment groups and (2) a quantitative and qualitative investigation of perceptions regarding the use of MyVLS-Reader. The evaluation results indicate that the treatment group developed a better vocabulary than the control group in significantly less time. The use of MyVLS-Reader also slightly improved higher-order thinking skills. This result suggests that MyVLS-Reader can effective assist students in building their vocabulary while reading.     

基于过程质量考核的高职实践教学改革探索

我国高等职业教育经过几十年的发展．现已占据高等教育的半壁江山．但在内涵建设上距欧美等发达国家尚有很大差距。本文在对高等职业教育现有人才培养模式进行详细分析的基础上．针对培养学生的技术应用能力过程中存在的若干问题进行了深入分析．进而探讨了实践教学体系的建立过程．并在实践教学过程中引入管理科学的过程质量考核办法．全面保障高素质技术应用型人才的培养质量．     

高职教育基础课教学改革初探

我院自1998年改制以来 ,为认真贯彻落实《教育部关于加强高职高专教育人才培养工作意见》 ,以“六双”教学改革为核心 ,全面推进教学改革。其中 ,基础课教学改革是一个重点 ,也是一个难点。本文对高职教育基础课应如何进行教学改革作些探讨 ,目的是共同探索如何构建有高职特色的基础课教学模式。     

Depressed skull fractures: a pattern of abusive head injury in three older children

OBJECTIVE: To describe a pattern of abusive head injury in a series of children older than 4 years of age. METHODS: A hospital chart review of abused children with skull fractures from 1999 to 2001 was carried out. The clinical features, social background, and subsequent outcome and management are described. RESULTS: An 11-year-old girl and a pair of brothers of ages 7 and 9 were identified. The girl was attacked with a hammer during sleep by her stepmother, who committed suicide shortly afterwards. After craniotomy and intensive care, the child survived her multiple depressed fractures, intracranial bleeding, and brain contusion. Two brothers from a second family were attacked from behind with a hammer by their biological father, who was subsequently found to have undiagnosed schizophrenia. A depressed occipital fracture, without intracranial injury, was found in each child. The elder brother also had metacarpal fractures. Both children recovered without surgical intervention. CONCLUSION: A pattern of abusive head injury was described in older children with depressed skull fractures from blunt injury. The abusing parents were seriously mentally disturbed, and the abusive acts closely resembled child homicide.