对少数民族小学教师双语培训策略的调查与分析

文章主要在问卷调查和对少数民族小学教师双语培训中HSK成绩与相关的学习策略多角度的调查与分析的基础上，提出对这项培训工作改进的建议，为有的放矢地解决培训中的教学问题提供一定的参考依据。     

Validity Issues in Test Speededness

Speededness refers to the situation where the time limits on a standardized test do not allow substantial numbers of examinees to fully consider all test items. When tests are not intended to measure speed of responding, speededness introduces a severe threat to the validity of interpretations based on test scores. In this article, we describe test speededness, its potential threats to validity, and traditional and modern methods that can be used to assess the presence of speededness. We argue that more attention must be paid to this issue and that more research must be done to set appropriate time limits on power tests so that speed of responding does not interfere with the construct measured.     

不同运动等级青年男子乳酸阈、心肺功能的比较研究

选取体育专业足球队学生（专业组）、非体育专业不运动学生（对照组）和体育锻炼持续一年以上的学生（锻炼组）为实验对象，采用德国h／p／cosmos跑台和美国MAX-Ⅱ心肺测试系统等设备测定其在运动过程中心肺功能各指标及血乳酸浓度的变化并进行综合评价。结果显示，专业组和锻炼组达到乳酸阈时的跑速、血乳酸浓度高于对照组；乳酸闽和最大吸氧量（VO2max）时的摄氧量（VO2）、氧脉搏（O2P）、每分通气量（VE）、跑速等指标均高于对照组。     

篮球专业学生功能性运动测试及结果研究

本文通过文献资料、实验法等,运用功能性运动测试(FMS),对某高校2011级部分篮球专选学生进行损伤情况调查及实验测试。结果表明:出现过轻度的人数为33人次,占总人数的89.1%,出现过中度损伤的人数为21人次,占总人数的56.7%,有过重度损伤经历的有7人次,占总人数的18.9%,损伤类型依次为皮肤擦伤、扭伤、肌肉拉伤、关节脱臼、骨折。最容易出现损伤的部位为手指、手腕关节。FMS测试6名学生中没有出现不及格现象。结论:体育教育专业篮球专项学生应加强对运动员损伤预防及伤后处理的教育,提高自我保护意识;加强场地器材和医务监督,从思想上重视损伤带来的危害。     

软件测试中选择有效测试技术的一种方法

软件测试对于软件发展具有重要作用,有多种不同的软件测试技术,如何从中选择一个高效的测试技术是软件测试管理中的一个重要问题。本文针对该问题分析了覆盖水平与测试技术有效性之间的关系,并以路径覆盖测试和判定覆盖测试这两种方法为例进行了实验研究,结果表明在缺陷检出率及测试用例数与测试覆盖率之间遵循幂指数关系,这种幂指数关系有助于测试人员在给定覆盖率时,对缺陷发现率和需要的测试用例数进行预测。     

我国兽药产业发展现状分析与建议

我国兽药产业呈现企业总量规模较庞大,结构差异性与区域性明显,不同类别企业产值、产能利用水平差异大,出厂产品的抽检合格率水平较高且较为稳定等特点。但就产业整体来看,我国兽药产业生产环节存在产业集中水平低,规模不经济;低水平重复建设,利润低;产业结构不合理;产业组织内部管理不规范等问题。因此,亟待政府合理规划布局,加速结构调整;政府与企业联合配置资源,保障产业运行效率;企业内部也需以人为本,重视人才与管理,提升企业自身实力。     

Temporal specificity of training: intra-day effects on biochemical responses and Olympic-Weightlifting performances

The aim of this study was to investigate the performance of an Olympic-Weightlifting session training at three times of the day on the performance related to biochemical responses. Nine weightlifters (21 ± 0.5 years) performed, in randomised order, on three Olympic-Weightlifting training (snatch, clean and jerk) sessions (08:00 a.m., 02:00 p. m., 06:00 p. m.). Blood samples were collected: before, 3 min and 48 h after each training session. Haematological parameters and markers of muscle injury were assessed. Resting oral temperature and rating of perceived exertion (RPE) were also assessed during each session. ANOVA showed that the performance was better (P < 0.001) at 02:00 p. m. with a less RPE (P < 0.01) compared to the morning and the evening sessions while there was higher (P < 0.05) oral temperature at 06:00 p. m. versus 08:00 a.m. and 02:00 p. m. Muscle damage changed immediately (without significant effect after 48 h) after the training sessions with lower values ??in the evening compared to the morning. In conclusion, the afternoon training is more effective than morning or evening sessions for weightlifters. Therefore, coaches and weightlifters should be advised to schedule their training session in the afternoon hour.     

食品中亚硫酸盐使用及检测方法的研究进展

亚硫酸盐是一类在食品中广泛使用却常被忽视的添加剂,不恰当的使用会对人体造成一定的损伤.笔者综述了食品中亚硫酸盐的使用及检验方法,并讨论了各种检测方法的优缺点.旨在对食品生产过程中亚硫酸盐的使用及检测起到一定的指导作用.     

改善和提高参数单侧假设检验教学效果的实践与探索

分析了参数单侧假设检验教学的现状和存在的问题,提出和论证在该部分内容的教学中应注意讲好思想方法、确定好小概率事件和适当介绍参数单侧检验中原假设的确立原则。通过加强这三个方面的工作,以期缓解学生学习的畏难情绪,提高学生的学习兴趣,从而有效改善和提高参数单侧假设检验的教学效果。     

‘I’m just a numbers person’: the complexity,nature and effects of the quantification of education

This paper draws upon the sociology of numbers, particularly work by Theodore Porter, to reveal the multifarious ways in which numbers actively constitute practices in schools. Drawing upon a case study of one low-performing school in a low-performing region in the state of Queensland, Australia, and theorising into the sociology of numbers, the research explores the complex ways in which numbers came to constitute and dominate the practices in this school site under a broader national, state and regional policy context demanding rapid improvements in various forms of standardised tests and associated practices. Specifically, the research reveals a strong and simultaneous focus by teachers upon a variety of numeric data collected at national, regional and local levels, and intricate relations between these data; multiple visualisation, triangulation and comparison approaches towards such data in virtual and physical formats; and the enumerative nominalisation of both students and their reading attainment in relation to specific, concretised levels of achievement and various types of scale scores. The research cautions against the sheer volume of such enumerative practices, which, while productive of teachers’ understandings of student capacity against standardised measures of achievement, may also lead to a more reductive view of education, dominated by concerns about achievement in standardised tests (and associated practices) alone.