基于能力本位高职专业课教学改革研究实践--系统化融合《机电设备故障诊断与维修》及《设备管理》课程

以高职《机电设备故障诊断与维修》与《机电设备管理》课程的理实一体化现场授课改革为切入点,从课程的实际特点出发,基于“机电设备维修与设备管理能力同步并重”的理念,提出并阐述了课程系统化融合的思想,设计并实践了新课程的同步学习情景、实施方案及系统过程综合化的考评方式,取得了满意的效果。     

Clustering tennis players’ anthropometric and individual features helps to reveal performance fingerprints

Abstract

The study was aimed to explore distinct players’ groups according to their anthropometric and individual features, and to identify the key performance indicators that discriminate player groups. Match statistics, anthropometric and personal features of 1188 male players competing during 2015–2017 main draw Grand Slam singles events were collected. Height, weight, experience, handedness and backhand style were used to automatically classify players into different clusters through unsupervised learning model. Afterwards, 29 match variables were analysed through MANOVA and discriminant analysis in order to evaluate the different match performance among player groups and to identify the key performance indicators that best differentiate player clusters in each Grand Slam. The analysis revealed the existence of four clusters, they were classified as Big-sized Right Two-handed Players (n?=?387), Medium-sized Right One-handed Players (n?=?265), Small-sized Right Two-handed Players (n?=?414), and Left Two-handed Players (n?=?122). Serve, winner, net and physical performance-related indicators (Structure Coefficient?≥?|0.30|) were showed to be the maximum contributors to the group separation. Left-handed players were the most homogenous group in performance. Taller players outperformed their peers in all Slams except for Roland Garros, where left-handed players demonstrated certain advantage playing on slow-pace surface. In Wimbledon and US Open, Medium-sized Right One-handed Players showed better net and physical performance. The advantage of left-handed player is over-represented at elite level. Current findings promote a better understanding of match-play from distinct player groups and offer information on evaluating contextual variability for achieving better performances.     

新时期初知识分子的矛盾与困境——以戴厚英为例

从知识生产者的角度来看,以新时期为界,戴厚英经历了与她同时代的知识分子大多走过的历程,即从"革命"改造型知识分子到"启蒙"反思型知识分子。新时期的戴厚英也同大多数知识分子一样,经历了一个身份重构的过程。但是,戴厚英又是独特的。她并不局限于倾诉知识分子所受到的伤害,而是反思知识分子的局限与困境,并寻求突破的可能性。戴厚英在小说中所展现的知识分子的矛盾与困境,不仅是那一代知识分子所共同要面对的,而且是整个现代性历程本身的矛盾与困境的体现。     

对职业教育中Flash教学课堂的探究

Flash动画设计是一门操作性强、实践性强、培养学生创造性思维的课程。在现代职业教学的高要求下,作为新教师一代,就不能在课堂上只传授知识与技能,更要提高学生学习兴趣和学习的积极性。那么,如何选择适合中职学生的教学方法,使学生短时间内学好flash动画设计是教学的关键。文章主要从教学的角度来探讨Flash动画教学的一些经验和方法。     

藏传佛教文化旅游体验的双重三位一体结构

藏传佛教文化旅游体验的双重三位一体结构,是在基督教三位一体理念的启发下,从旅游本质三重区分和宗教的神圣与世俗之张力的角度提出的,从而建构藏传佛教文化旅游体验的双重三位一体结构,这对研究藏传佛教文化旅游体验,指导藏传佛教文化旅游活动皆有一定的价值和意义。     

Peripheral Narrowing among Experienced and Inexperienced Rifle Shooters under Low- and High-Stress Conditions

Abstract

This study examined Easterbrook's (1959) hypothesis that performance on a primary task would improve or at least be maintained with increased levels of arousal, while performance on a secondary task would decrease. To test this hypothesis, the performance of 20 collegiate rifle shooters (10 experienced, 10 inexperienced) on a primary target shooting task and a secondary auditory task were compared while shooting under low- and high-time stress conditions. Heart rate results, but not a self-report anxiety measure, provided evidence for the effectiveness of the stress manipulation. The results primarily supported Easterbrook's hypothesis. There were no differences in secondary task performance between experienced and inexperienced shooters. However, subjects who first underwent high time stress followed by low (H-L) shot better than those given the reverse order (L-H). These findings are discussed in relation to the attention demands of self-paced sports as well as the transfer effects of stress.     

Information recall of younger and older skilled athletes: The role of display complexity,attentional resources and visual exposure duration

This study was concerned with the interactive role of experience of athletic skill with other relevant environmental variables (display complexity, attentional resources, exposure time of stimuli) on perception (recall) of structured handball game situations. Nineteen experienced (older) and 19 less experienced (younger) handball players were assigned randomly either to ball‐bouncing (diverted attention) or to calm seated (focused attention) conditions. In each of the two conditions, the subjects were exposed to a total of 36 slides containing 2–3, 5–6 and 8–10 players. Eighteen slides were exposed for 0.5 s and 18 for 1.0 s. All the slides contained structured defence and offence situations. Recall scores were subjected to repeated‐measures ANOVA using attention condition and age as between‐subject factors and task complexity and exposure duration as within‐subject factors. The results showed that the recall of less experienced players deteriorated more than the recall of more experienced players following exposure to complex displays (≥ 8 players) while engaging in a secondary task (bouncing). The findings suggest that research paradigms should be applied in the field of sport which share both ecological validity and a potential to discover the cognitive substrates underlying experience and age in skilled motor performance.     

美国基础研究经费投入与管理对我国未来的经验借鉴

基础研究是整个科技创新活动的基础和源泉。通过对美国基础研究投入情况总结与分析,为我国基础研究经费投入及绩效评估工作提供借鉴。本文系统分析了美国联邦政府基础研究投入与执行、基础研究经费管理经验,结合我国实际情况,提出了加大基础研究投入力度、充分发挥政府的引导和支持作用、构建有效的协调机制和加强基础研究经费绩效评估等相关政策建议,对我国未来基础研究经费管理提供经验借鉴。     

养老保险改革的国际经验与我国的现实选择

“统账结合”的养老保险制度在我国已经运行十几年时间,存在代际不公平、个人账户空账运行以及老龄化背景下财务不可持续等问题。本文试图通过分析世界养老保险改革的演进过程中积累的经验,为我国养老保险改革提出相应的建议。     

如何激发学生阅读诗歌的兴趣

诗歌教学在语文教学中占据重要位置,也是教学难题。学生学习兴趣不高,只是被动接受老师的讲授,对于诗歌的理解停留在文字表面,无法领悟诗歌的内容和意境。本文尝试从朗读、品评、体验等方面来解决这个问题,提高学生阅读诗歌的兴趣。