"概率"复习课探讨

复习总结是学好概率不可缺少的环节,而知识的序列化、题型的多样化、梯度化是搞好复习总结的关键。     

人机情感交互系统中教学Agent心智模型的研究与构建

如何在网络教学中,实现以人文关怀为特征的和谐情感交互,以提高学习者的学习效率,已成为现代网络教育中值得深入研究的重要课题。本文在情感计算理论和软件Agent技术基础上,研究教学Agent心智模型,以期构建和谐人机情感交互系统。     

Writing plan quality: Relevance to writing scores

If writing matters, how can we improve it? This study investigated the nature of writing plan quality and its relationship to the ensuing writing scores. Data were drawn from the 1998 Provincial Learning Assessment Programme (PLAP) in Writing, which was administered to pupils in Grades 4, 7, and 10 across British Columbia, Canada. Common features of writing quality were qualitatively identified in a sample of writing plans across the three grade levels. An analytic scoring scheme based on (i) identified features of writing quality in writing plans, (ii) evaluative terms commonly used as criteria to measure writing performance in both large-scale and classroom assessments, and (iii) theory and research in writing, was developed and used to assess a sample of 1,797 writing plans. Correlation and regression analyses were used to determine relationships between quality of writing plans and writing scores. Evidence of features of writing quality in writing plans was associated with higher writing scores. Identification of features of writing plan quality provides valuable instructional information to promote student writing.     

Widening Our Global View: The Development of Career Counseling Services for International Students

The increased number of international students in United States universities and colleges have created the need for the development of services that appropriately reflect their needs and characteristics. The Career Center at the University of Missouri, Columbia reacted to this phenomenon by developing career services exclusively for international students. Career services are provided as individual services and online services, and consist of information on graduate schools and entrance examination practices, information on available employment opportunities and work permit policies, career assessments, and information about specific skills for obtaining a job in the United States. Several marketing strategies were used to ensure international students' use of services. Important points in developing career services for international students are presented.     

Urinary N-acetyl beta glucosaminidase and gamma glutamyl transferase as early markers of diabetic nephropathy.

Albumin and enzymes-N-acetyl-beta-glucosaminidase (NAG) and gamma glutamyl transferase (GGT) were estimated in the morning random urine samples of 196 albustix negative diabetic patients to evaluate the clinical utility of these urinary enzymes as early markers of diabetic nephropathy. Albumin was estimated by immunoturbidimetric method and enzymes by linetic essay within six hours of voiding of urine. The urinary albumin and urinary enzyme concentration was calculated in terms of ratio with respect to urinary creatinine. Correlation coefficient (r) bewween urinary albumin and urinary enzymes in normoalbuminuric, microalbuminuric and overall diabetic cases was 0.23, 0.32 and 0.40 respectively for NAG, and 0.08, 0.06 and 0.18 respectively for GGT. NAG excretion was found increased in 34%, 63.7% and 49.5% of normoalbuminuric, microalbuminuric and overall diabetic cases respectively while GGT in 6.4%, 24.5% and 15.8%. The correlation coefficient between urinary albumin and NAG in normoalbuminuric, microalbuminuric, and overall diabetic patients with increased NAG excretion was found only 0.31, 0.27 and 0.35 respectively. No correlation was found between duration of diabetes and enzyme excretion. The study suggests that urinary NAG or GGT or both together do not have any clinical significance as an early marker of diabetic nephropathy.     

Development of a computer‐based visualised quantitative learning system for playing violin vibrato

Traditional methods of teaching music are largely subjective, with the lack of objectivity being particularly challenging for violin students learning vibrato because of the existence of conflicting theories. By using a computer‐based analysis method, this study found that maintaining temporal coincidence between the intensity peak and the target frequency is the crucial factor for achieving good intonation when performing vibrato. This finding prompted the development of a computer‐based visualised quantitative vibrato analysis system (VQVA‐Sys) that displays these two parameters in a user‐friendly manner for both musicians and scientists: (1) the type of frequency variation and (2) the corresponding frequencies with the highest intensities during all of the cycles constituting a vibrato note. A follow‐up preliminary experimental investigation compared a moderately expressive vibrato note played by eight experts and eight students, and demonstrated the feasibility and potential usefulness of the VQVA‐Sys as a learning tool.     

任务教学法在高职高专大学英语教学中的运用

任务教学法比传统型教学具有很大的优势。尤其是高职高专学生不同与本科院校学生,具有自身的特点,如果在高职高专英语教学中正确运用任务教学法,会产生很好的效果。本文通过实例介绍任务教学法在高职高专英语教学中的应用,并简要分析其利弊。     

基于耦合关系的馆藏数字资源语义化深度聚合研究

文章以计量分析中的耦合关系为例,探讨了耦合关系的语义特性及其对数字资源深度聚合能力,提出了基于耦合关系的馆藏数字资源语义化聚合模型,并进行实证研究。结果表明:利用耦合关系对馆藏数字资源进行深度聚合能很好地揭示馆藏数字资源的语义特性,可以从多个角度对文献资源进行有效组织,为用户提供资源推荐和个性化知识服务,提升图书馆知识服务的能力和效率。     

高校图书馆价值与功能的内隐观调查与分析

采用内隐观调查方法，对三所大学615名大学生进行高校图书馆价值与功能的调查研究。结果表明，大学生读者所认为的高校图书馆价值功能可归为6类：获取信息、提升素养、提供资源、提供学习环境与氛围、提供服务与管理、传播传承文化。同时，讨论内隐观研究结果的层次性特点及对当前高校图书馆核心价值研究的启迪意义。