采用线光源的掠入射法测量棱镜折射率的方案

提出一种利用线光源,并通过旋转载物台获得单一的明暗分界线的掠射法测量棱镜折射率的新方案.实验结果表明,该方案容易精确地找到90°掠入射光线的出射线,能大大减小测量误差,提高测量精度.     

Test anxiety prevalence and gender differences in a sample of English secondary school students

The aim of this study was to estimate the proportion of students who report themselves as highly test anxious in a sample of English secondary schools and whether this proportion differed by gender. Self-report test anxiety data were collected from 2435 secondary school students in 11 schools. Results showed that 16.4% of the sample reported themselves to be highly test anxious, with the proportion significantly higher in female students (22.5%) than male students (10.3%). Moderate gender differences were present in the worry and tension components of test anxiety and small differences in the social derogation component. While not all highly test anxious students might be at risk of underperformance and disengagement from school and academic activities, there may still be a sizable group of students who would benefit from specific support and intervention.     

管理科学期刊引证指标的灰色关联研究

 利用灰色绝对关联度与优势分析理论和方法,分析了2004年16种管理科学学术期刊影响因子、即年指标与其期刊计量指标之间的关系,得出了影响因子、即年指标与各指标间的关联度,结果表明,篇均作者和基金论文比是影响管理科学期刊质量的两个最重要指标,并对结果进行了分析。     

我国排球运动员的运动创伤情况调查研究

为了探索我国排球运动员创伤发生的规律,从而为寻找预防和减少训练及比赛中的创伤提供依据,对我国419名排球运动员进行了创伤流行病学调查。调查结果表明,我国排球运动员运动损伤发生率为2.6人次/1000h,所有受试者在训练中损伤的发生率为1.8人次/1000h,比赛中的损伤发生率为4.1人次/1000h,踝关节损伤发生率是1人次/1000h,是排球运动中的最常见损伤。