高校工科教师胜任力的研究——模型构建与实证分析

通过对参与"卓越计划"试点高校的学生和教师进行访谈和问卷调查,将高校工科教师胜任力归纳为四个特征群,即素质、能力、知识和个人特质。在对工科教师胜任力架构进行主成分分析后得知:决定工科教师胜任力重要的主成分是素质群和个人特质群,其次是能力群,再次是知识群,胜任力的养成尤其应注重隐性的素质和个人特质两个维度;"卓越计划"下工科教师的胜任力结构具有发展度(胜任力测评)、协调度(胜任力各维度的均衡)和持续度(胜任力的持续提升)三个明显特征。     

基于零部件归并问题的采购策略模型

针对不同价格和不同质量要求的 2种功能可互换的零部件 ,提出了一个研究零部件归并问题的数学模型 .在对零部件质量要求不同而供应商根据购买量提供的折扣不同的情形下 ,该模型可以帮助采购经理决定如何将零部件归并后统一购买以使得总购置成本最低 .     

江西省开发区投资环境与投资效益的比较分析

为了实现开发区建设的目标,必须全面分析江西省各开发区的投资环境与投资效益,以利于采取有效的对策。文章主要采用主成分分析法,并结合聚类分析方法,以江西省各开发区的投资环境与投资效益作为研究对象,比较各开发区的发展水平。     

基于构件的网络自适应考试系统的设计

通过研究利用构件的强装拆性思想,将可重用的构件应用于网络自适应考试系统框架中,提出了一种基于构件的网络自适应考试系统的设计方法,着重探讨了构件库设计和自适应考试技术,并对其中的关键技术进行了研究.     

基于句法-语义界面理论的英语动词句法行为分析

按照英语动词的不同句法表现将其分类,研究其背后的语义动因,这是Beth Levin等提出的句法-语义界面研究的主要方法。基于这种方法,可分别将英语中“增添”类和“清除”类动词按照其不同句法行为进行亚类型分类,总结出该两类及其亚类型动词的谓价结构。这种方法同样适用于动词元语义组成要素的分析,研究发现,只有四个元语义组成要素全部在场的动词才能用在中间语态中。句法-语义界面理论在语言的句法研究与语义研究之间架起一道桥梁,能够发现语言句法过程的语义基础,是语言学研究方法论上的一大进步,是对Noam Chomsky的转换生成语法和C．J．Fillmore的“格的语法”走向两个极端的适时纠正。     

网上评教及OLAP系统的研究与实现

通过对高校教学管理中普遍使用的网上评教系统的介绍和分析，就存在的问题和解决方案进行了探讨，并对在方案实施中采用的体系结构及运用的分析工具等提出了合理化的设计与构想。     

Relationship of “weekend warrior” and regular physical activity patterns with metabolic syndrome and its associated diseases among Chinese rural adults

Little is known about the “weekend warrior” pattern of physical activity (PA) where people perform all their PA in 1 or 2 sessions per week. We investigated the relationship of weekend warrior and other PA patterns with metabolic syndrome (MS) and its associated diseases. Data on sociodemographic and lifestyle characteristics were collected from the Nantong Metabolic Syndrome Study that included 13,505 women and 6,997 men between 2007 and 2008. Compared with inactive participants, weekend warriors were at lower risk of MS, diabetes, and hypertension; respective odds ratios (95% confidence intervals) for men and women were 0.58 (0.43–0.79) and 0.67 (0.52–0.86), 0.52 (0.34–0.79) and 0.52 (0.33–0.83), and 0.79 (0.63–0.99) and 0.71 (0.57–0.89). Similar results were observed with regular activity, at a frequency of >3 sessions per week. Both weekend warrior and regular PA patterns showed a 10–60% decrease in abnormal triglycerides, glucose, and blood pressure in both sexes; abnormal waist circumference in men only; and abnormal high-density lipoprotein in women only. Our observed cross-sectional relationships reflect that >150 min/week of moderate PA or 75 min/week vigorous-intensity PA is needed to prevent MS and its component diseases, even if in a short-bout, intermittent PA pattern.

Abbreviations: MS: Metabolic syndrome; WC: Waist circumference; TG: Triglycerides; HDL-c: High-density lipoprotein cholesterol; BP: Blood pressure; SBP: Systolic blood pressure, DBP: Diastolic blood pressure; PA: Physical activity; JIS: Joint Interim Statement; CVD: Cardiovascular disease; ATP III: US Third Report of the National Cholesterol Education Program, the Adult Treatment Panel; IDF: International Diabetes Federation; IPAQ: International Physical Activity Questionnaire; BMI: Body mass index; CDC: the Nantong Centers for Disease Control; OR: Odds ratio; CI: Confidence interval; SD: Standard deviation; IQR: Interquartile range.     

Effects of two physical education programmes on health- and skill-related physical fitness of Albanian children

This study aims to evaluate the effectiveness of two school-based physical education (PE) programmes (exercise-based and games-based) compared with traditional PE, on health- and skill-related physical fitness components in children in Tirana, Albania.

Participants were 378 first-grade (6.8 years) and 389 fourth-grade (9.8 years) children attending four randomly selected schools in Tirana. Twenty-four school classes within these schools were randomly selected (stratified by school and school grade) to participate as exercise group (EG), games group (GG) and control group (CG). Both EG and GG intervention programmes were taught by professional PE teachers using station/circuit teaching framework while CG referred to traditional PE school lessons by a general teacher. All programmes ran in parallel and lasted 5 months, having the same frequency (twice weekly) and duration (45 min). Heart rate (HR) monitoring showed that intensity during PE lessons was significantly higher in the intervention groups compared with control (P < 0.001). Both PE exercise- and games programmes significantly improved several health- and skill-related fitness indicators compared with traditional PE lessons (e.g. gross motor skill summary score: 9.4 (95% CI 7.9; 10.9) for exercise vs. control and 6.5 (95% CI 5.1; 8.1) for games vs. control, cardiorespiratory fitness: 2.0 ml O₂ · min^?1 · kg^?1 (95% CI 1.5; 2.4) for exercise vs. control and 1.4 ml O₂ · min^?1 · kg^?1 (95% CI 1.0; 1.8) for games vs. control). Furthermore, compared to games-based PE, exercise-based PE showed more positive changes in some gross motor coordination skills outcomes, coordination skills outcomes and cardiorespiratory fitness. The results from this study show that exercise- and games-based PE represents a useful strategy for improving health- and skill-related physical fitness in Albanian elementary school children. In addition, the study shows that exercise-based PE was more effective than games-based PE in improving gross motor function and cardiorespiratory fitness.     

高水平大学生运动员身体成分的调查研究

采用文献资料法、测试法和数理统计法,对哈尔滨体育学院运动训练专业的高水平大学生运动员身体成分进行测试,分析高水平大学生运动员的身体成分特点,探讨长期运动训练对身体成分的影响。结果显示高水平大学生运动员的一些身体成分指标优于正常组大学生,显示出高水平大学生运动员身体成分应有的一些特征,但也反映出肌肉训练与营养等问题.     

铁水包底吹喷粉脱磷预处理技术的可行性研究

提出了铁水包底吹喷粉脱磷预处理的技术。并从物料平衡、温降模型、及砖型设计等方面分析论述该技术的可行性。