开展电子设计竞赛促进电子实验教学改革

论述了电孚设计竞赛对电子实验教学改革及电子实验室建设的促进作用，并结合我院的实际，提出了电子实验教学改革及实验室建设的思路和方法。     

浅谈改进高校计算机网络类课程的实验教学

实验教学是计算机网络类课程的重要组成部分.通过分析当前计算机网络类课程与实验教学的现状,结合学校现有的实验条件,探讨了改进计算机网络类课程实验教学的一些思路.     

Validating Student Score Inferences With Person‐Fit Statistic and Verbal Reports: A Person‐Fit Study for Cognitive Diagnostic Assessment

The goal of this study was to investigate the usefulness of person‐fit analysis in validating student score inferences in a cognitive diagnostic assessment. In this study, a two‐stage procedure was used to evaluate person fit for a diagnostic test in the domain of statistical hypothesis testing. In the first stage, the person‐fit statistic, the hierarchy consistency index (HCI; Cui, 2007 ; Cui & Leighton, 2009 ), was used to identify the misfitting student item‐score vectors. In the second stage, students’ verbal reports were collected to provide additional information about students’ response processes so as to reveal the actual causes of misfits. This two‐stage procedure helped to identify the misfits of item‐score vectors to the cognitive model used in the design and analysis of the diagnostic test, and to discover the reasons of misfits so that students’ problem‐solving strategies were better understood and their performances were interpreted in a more meaningful way.     

实验史学:后现代主义在史学领域的诉求

效用、真实和时间构成了历史认识结构的基本要素 ,而历史认识史中的结构变迁经历了前现代 (从古代到 1 8世纪末职业化历史学产生之前 )、现代 (职业化历史学时期 ,即 1 8世纪末到 2 0世纪 70年代初 )和后现代 ( 2 0世纪 70年代后 )三个阶段 ,效用、真实、时间依次成为这三个阶段历史认识结构的中心。以时间为结构中心的后现代主义史学表现出历史主义的极端化 ,并进一步强调了时间、变化对于历史真实和历史意义的决定性作用 ,有鉴于此 ,历史叙述和阅读的私人化将促使历史学成为一种实验史学 ,即它不再是那种宣告历史真实的史学 ,而致力于在历史性情境下提供个体史学家认可的文本 ,并交由读者阅读、判断 ,随后通过该文本产生的效用来确认其是否真实。这样 ,任何一种史学实践都将是历史学家当下进行的一项追求历史真实的实验 ,而实验成功与否 ,完全取决于实验环境即阅读环境所提供的条件     

高等旅游教育开放式实验教学体系构建研究

随着知识经济时代的到来和旅游业国际竞争的加剧,产业结构和职业结构的调整越来越癫繁,我国旅游业对创新型复合旅游人才的需求将更加迫切。然而,现行旅游本科实验教学基本沿用传统的封闭型实验教学模式,不利于创新型复合旅游人才的培养。从优化高等旅游教育实验教学体系入手,分析现行旅游本科实验教学存在的某些缺陷,通过构建高等旅游教育开放式实验教学体系,可以实现创新型复合旅游人才的培养目标。     

高校经济管理实验教学中心建设与效果的实证研究——基于实验教学示范中心申报材料的分析

通过对高校经济管理实验教学示范中心申报材料的分析,发现不同类型、不同层次、不同区域及不同建设经费来源的高校在实验中心建设及成效方面存在显著性差异。研究还发现,建设经费渠道显著地影响着高校经管类实验中心的建设及成效。因此,高校应因地制宜,根据自己的实际情况来进行实验中心的建设;同时,要努力拓宽建设经费渠道,以便更好更快地建设经管类实验中心。     

Factorial and convergent validity of the Exercise Identity Scale in a German adult sample

The purpose of the present study was to examine the factorial and convergent validity of the German translation of the Exercise Identity Scale (EIS; Anderson & Cychosz, 1994). We introduce a bifactor model as a possible alternative to the previously discussed one- and two-factor models. Using an online study with 530 participants, our results suggest that the EIS should be considered a unidimensional measure. For this one-factor model, temporal invariance (time interval: 2 weeks) and invariance between men and women could be established. Relations to similar constructs were in the expected directions. We provide a psychometrically sound German version of the EIS, which demonstrated factorial and convergent validity in this study. The use of the scale in German samples is likely to advance research on exercise adoption and maintenance by integrating the exercise identity construct.     

Development and validation of Coaches’ Interpersonal Style Questionnaire

Purpose: The objectives were to develop and validate the Coaches’ Interpersonal Style Questionnaire. The Coaches’ Interpersonal Style Questionnaire analyzes the interpersonal style adopted by coaches when implementing their strategy of supporting or thwarting athletes’ basic psychological needs. Method: In Study 1, an exploratory factor analysis was performed with 265 Spanish male athletes, between 11- and 17-years-old, to confirm the internal structure of the questionnaire. Study 2 was conducted with 430 athletes, also between 11- and 17-years-old. Both confirmatory factor analysis and exploratory structural equation modeling were used to test a set of alternative models to find the best measurement model. Results: The hierarchical exploratory structural equation modeling model showed the best fit to the data and acceptable standardized factor loadings. Concurrent validity was revealed through correlational analysis of the basic psychological need satisfaction and frustration. Conclusion: This study provides a multi-dimensional questionnaire to assess coaches’ interpersonal style perceived by athletes.     

Accuracy and precision of loadsol® insole force-sensors for the quantification of ground reaction force-based biomechanical running parameters

Force plates represent the “gold standard” in measuring running kinetics to predict performance or to identify the sources of running-related injuries. As these measurements are generally limited to laboratory analyses, wireless high-quality sensors for measuring in the field are needed. This work analysed the accuracy and precision of a new wireless insole forcesensor for quantifying running-related kinetic parameters. Vertical ground reaction force (GRF) was simultaneously measured with pit-mounted force plates (1?kHz) and loadsol^® sensors (100?Hz) under unshod forefoot and rearfoot running-step conditions. GRF data collections were repeated four times, each separated by 30 min treadmill running, to test influence of extended use. A repeated-measures ANOVA was used to identify differences between measurement devices. Additionally, mean bias and Bland–Altman limits of agreement (LoA) were calculated. We found a significant difference (p?® devices for these parameters. For these same parameters, the LoA analysis showed that 95% of all measurement differences between insole and force plate measurements were less than 12%, demonstrating high precision of the sensors. However, highly dynamic behaviour of GRF, such as force rate, is not yet sufficiently resolved by the insole devices, which is likely explained by the low sampling rate.     

An accurate estimation of the horizontal acceleration of a rower’s centre of mass using inertial sensors: a validation

For a valid determination of a rower’s mechanical power output, the anterior–posterior (AP) acceleration of a rower’s centre of mass (CoM) is required. The current study was designed to evaluate the accuracy of the determination of this acceleration using a full-body inertial measurement units (IMUs) suit in combination with a mass distribution model. Three methods were evaluated. In the first two methods, IMU data were combined with either a subject-specific mass distribution or a standard mass distribution model for athletes. In the third method, a rower’s AP CoM acceleration was estimated using a single IMU placed at the pelvis.

Experienced rowers rowed on an ergometer that was placed on two force plates, while wearing a full-body IMUs suit. Correspondence values between AP CoM acceleration based on IMU data (the three methods) and AP CoM acceleration obtained from force plate data (reference) were calculated. Good correspondence was found between the reference AP CoM acceleration and the AP CoM accelerations determined using IMU data in combination with the subject-specific mass model and the standard mass model (intraclass correlation coefficients [ICC] >?0.988 and normalized root mean square errors [nRMSE]?3.81%). Correspondence was lower for the AP CoM accelerations determined using a single pelvis IMU (0.877?Based on these results, we recommend determining a rower’s AP CoM acceleration using IMUs in combination with the standard mass model. Finally, we conclude that accurate determination of a rower’s AP CoM acceleration is not possible on the basis of the pelvis acceleration only.