影响体育教育专业学生术科学习的因素分析

对影响学生术科技术技能水平提高的因素进行调查和分析,认为体育教育专业人才培养方案改革、体育考生专业基础水平下降,术科教师教学方法与手段滞后、场馆器材的有限与学生人数急增的矛盾日显凸出以及社会活动增多等因素所造成的,并针对性地提出了相应对策.     

Bias Reduction through First-order Mean Correction, Bootstrapping and Recursive Mean Adjustment

Standard methods of estimation for autoregressive models are known to be biased in finite samples, which has implications for estimation, hypothesis testing, confidence interval construction and forecasting. Three methods of bias reduction are considered here: first-order bias correction, FOBC, where the total bias is approximated by the O(T^-1) bias; bootstrapping; and recursive mean adjustment, RMA. In addition, we show how first-order bias correction is related to linear bias correction. The practically important case where the AR model includes an unknown linear trend is considered in detail. The fidelity of nominal to actual coverage of confidence intervals is also assessed. A simulation study covers the AR(1) model and a number of extensions based on the empirical AR(p) models fitted by Nelson & Plosser (1982). Overall, which method dominates depends on the criterion adopted: bootstrapping tends to be the best at reducing bias, recursive mean adjustment is best at reducing mean squared error, whilst FOBC does particularly well in maintaining the fidelity of confidence intervals.     

试论大学英语听力教学模式

本文针对目前大学英语教学改革中对学习者听力要求的不断提高与有限的听力教学之间的矛盾，利用在新生当中进行的有关听力方面的调查结果，归纳并分析讨论了EFL学习者在听力方面存在的问题，指出EFL学习者在提高听力理解方面存在着诸多需要教师帮助解决的问题，并对大学英语听力教学模式提出了一些建议。     

关于赞美的分析与研究

论述赞美的种类及其特点与作用;赞美应遵守的规则;提出学会赞美应该注意哪些方面,以及赞美在实际生活中的运用。     

Risk of Error and the Kappa Coefficient of a Binary Diagnostic Test in the Presence of Partial Verification

The accuracy of a binary diagnostic test is usually measured in terms of its sensitivity and its specificity, or through positive and negative predictive values. Another way to describe the validity of a binary diagnostic test is the risk of error and the kappa coefficient of the risk of error. The risk of error is the average loss that is caused when incorrectly classifying a non-diseased or a diseased patient, and the kappa coefficient of the risk of error is a measure of the agreement between the diagnostic test and the gold standard. In the presence of partial verification of the disease, the disease status of some patients is unknown, and therefore the evaluation of a diagnostic test cannot be carried out through the traditional method. In this paper, we have deduced the maximum likelihood estimators and variances of the risk of error and of the kappa coefficient of the risk of error in the presence of partial verification of the disease. Simulation experiments have been carried out to study the effect of the verification probabilities on the coverage of the confidence interval of the kappa coefficient.     

Inference in the presence of ranking error in ranked set sampling

The author proposes inference techniques for ranked set sample data in the presence of judgment ranking errors. He bases his analysis on the models of Bohn & Wolfe (1994) and Frey (2007a, b), of which parameters are estimated by minimizing a distance measure. He then uses the fitted models to calibrate confidence intervals and tests. He shows the validity of his approach through simulation and illustrates its application through the construction of distribution‐free confidence intervals for the median area of apple tree leaves covered by a spray.     

法学教学中实践技能训练之我见

实践是法律的生命。传统的法学教育缺乏师生互动,不能体现法学专业大学生学习中的主体性。加强法学实践技能训练,是现代高校法学教育的大趋势,具体地说就是对实践技能训练方式的开发、适用和检讨。     

现代教育技术条件下的教师角色定位与技能需求

针对现代多媒体技术环境,提出教师的角色应由传统的知识传授者与灌输者转变为学生学习的促进者、课程研发者、学生的学术顾问等角色上来。同时,对现代教育技术条件下教师应掌握的职业技能与能力结构进行了简要描述。     

跨文化交际障碍中的行为意识因素

鉴于国内的许多跨文化交际研究主要集中在纯语言的探讨和表层文化的分析上,试图从行为意识的角度出发,就思维定势、偏见意识和价值观念三大因素来分析跨文化交际中存在的障碍,从而使学习者排除跨文化交际的障碍,并从跨文化交流中获得益处。     

任务转换范式下情绪注意偏向

相对于其他信息来说,情绪信息往往会引起情绪障碍患者更多的注意并具有一种认知加工上的优先权。在注意实验中,与中性刺激相比,具有情绪意义的刺激更能吸引注意或占用注意资源从而引起注意偏向。通过转换代价和任务规则一致性效应两个指标阐述了任务转换范式下情绪障碍患者的情绪信息注意偏向加工机制,并指出这两种指标分别代表了个体在注意偏向中的两个不同的认知控制加工,为情绪障碍患者的情绪调节提供必要的依据。文中最后还指出了ERPs、f MRI新技术是未来任务转换范式下研究情绪与注意关系的新方向。