学生分组实验管理系统

本文介绍一个采用Microsoft Access'97桌面数据库及VBA语言开发的以物理实验为范例的学生分组实验管理系统。     

Learning art with computers — a LISREL model

Abstract This paper surveys the attitudes on the use of computers for aesthetic communication. In spite of the proliferation of computer art software and the popularity of art galleries on the world-wide web, many artists still find it difficult to accept computer art as a form of art. Many of them find only commercial values in computer art. To understand the latent attitudes constituting this rejection, a survey was conducted among high school students and the data was analysed with LISREL structural equation modelling techniques. Results indicate that aesthetic concerns, conservatism, and stereotypes are the major factors accounting for the negative attitude. Implications for system design to overcome the negative attitudes are discussed.     

Urinary monitoring of saccharin and acesulfame-K as biomarkers of exposure to these additives

A method was developed to determine the levels of two intense sweeteners, saccharin and acesulfame-K, in human urine. Measurement of these two analytes in urine allowed an assessment to be made of dietary exposure to the sweeteners using intake/excretion curves. This paper describes an intake/excretion study in which 22 volunteers consumed known amounts of saccharin and acesulfame-K at five different levels ranging between 1.4 and 70mg of saccharin (0.7- 30% of the ADI for a 60kg person) and 2.2-102mg of acesulfame-K (0.4-19% of the ADI for a 60kg person). Urine collections were then carried out by the volunteers for 24 h after each dose. The data obtained from this study were used to construct intake/excretion curves for both sweeteners. To test the methodology developed, 188 volunteers aged between 3 and 74 years were asked to carry out a 24-h urine collection whilst keeping a 48-h food diary. Comparison of the intake data obtained using the biomarker approach with the questionnaire-based results was generally good, although discrepancies due to the format and assessment of the questionnaire data were noticed.     

江西高校学生满意度现状与提升研究

本文在对江西六所高校教育服务学生满意度调查问卷进行统计的基础上,从高校的教学服务、图书馆服务、管理与支持、后勤服务等方面切入,具体分析了目前江西高校教育服务学生满意度的现状及存在的主要问题。结合问卷调查的分析结论,对所发现的主要问题提出了建议,以推动高校教育服务的改革发展。     

学生管理信息系统设计与开发

本文通过对学生管理工作现状的分析,设计并实现了学生管理信息系统;然后,通过对系统需求进行分析,对学生管理信息系统的结构进行了系统总体设计,系统总体设计包括功能设计、数据库设计;最后,通过对学生管理信息系统总体设计的研究,实现了学生管理信息系统的各功能模块。该系统界面友好,检索方便,并能为学校的统计、分析与决策提供有力的支持。     

基于ASP.NET的学生信息管理系统设计与实现

系统采用目前主流的Web技术ASP.NET 2.0构建,实现了高校学生信息的管理,如学籍信息、课程信息、班级信息、成绩信息等。介绍了学生信息管理系统的设计与实现,包括需求分析、数据库设计、模块实现,系统界面友好、操作方便,可以提高学校管理效率和管理水平。     

Sleep and need for recovery in shift workers: do chronotype and age matter?

This study examined associations of chronotype and age with shift-specific assessments of main sleep duration, sleep quality and need for recovery in a cross-sectional study among N = 261 industrial shift workers (96.6% male). Logistic regression analyses were used, adjusted for gender, lifestyle, health, nap behaviour, season of assessment and shift schedule. Shift workers with latest versus earliest chronotype reported a shorter sleep duration (OR 11.68, 95% CI 3.31–41.17) and more awakenings complaints (OR 4.84, 95% CI 4.45–11.92) during morning shift periods. No associations were found between chronotype, sleep and need for recovery during evening and night shift periods. For age, no associations were found with any of the shift-specific outcome measures. The results stress the importance of including the concept of chronotype in shift work research and scheduling beyond the concept of age. Longitudinal research using shift-specific assessments of sleep and need for recovery are needed to confirm these results.

Practitioner Summary: Chronotype seems to better explain individual differences in sleep than age. In view of ageing societies, it might therefore be worthwhile to further examine the application of chronotype for individualised shift work schedules to facilitate healthy and sustainable employment.     

学生成绩网络登录系统设计

本系统依据开发要求,主要应用于教育系统,完成对日常的教育工作中学生成绩的数字化管理.系统地介绍了采用ASP+Access技术实现了学生成绩网络登录系统,首先通过模块化方法,细分系统功能,再设计程序流程和数据库系统,最后采用ASP相关技术完成编码工作.     

基于距离的异常数据挖掘算法及其应用

给出了基于距离的异常数据的数量化定义,提出了基于距离的多指标的异常数据挖掘算法,这种算法适合于一般的海量数据库中的数据分析,以学生考试成绩作为实例进行了分析,可以从中动态地挖掘异常数据。作为特例,把单指标的异常数据挖掘算法应用于校园网Web服务器日志文件,给出了上网用户的频率分析图。     

Implementing a CMC tutor group for an existing distance education course

Abstract ‘Artificial Intelligence for Technology’ (T396) is a distance learning course provided by the Open University of the UK using face‐to‐face tutorials. In 1997 a pilot study was undertaken of a computer‐mediated communication (CMC) tutor group which consisted of volunteers from around the UK. The student feedback raised a number of issues including: the need for a distinct function for the tutor group conference, the role of and demands on the tutor, and the benefits perceived by students. It is suggested that some issues arise from a conflict of cultures each with their own implicit assumptions. The traditional face‐to‐face tutorial model is sometimes at variance with the demands of the new CMC based tuition.