高校基建工程实施全过程跟踪审计的途径与方法

高校基建工程实施全过程跟踪审计普遍存在"三重三轻"现象,面临审计缺位、目标不明确、力量薄弱等众多问题和困难。高校基建工程实施全过程跟踪审计,必须定位准确,抓住全过程跟踪审计关键点,有效嵌入工程管理,控制工程造价。     

基于目标跟踪的视频录播系统的探索与研究

精品课程教学录像是展示一个课程教与学精髓的重要途径,视频录播系统就是完成这一使命的重要工具。通过对当前录播系统原理与特点的分析,提出基于人体信息识别的智能录播系统方案,并证明该系统在精品课程教学视频录播中运用的可行性。     

Validity of an ultra-wideband local positioning system to measure locomotion in indoor sports

The validity of an Ultra-wideband (UWB) positioning system was investigated during linear and change-of-direction (COD) running drills. Six recreationally-active men performed ten repetitions of four activities (walking, jogging, maximal acceleration, and 45º COD) on an indoor court. Activities were repeated twice, in the centre of the court and on the side. Participants wore a receiver tag (Clearsky T6, Catapult Sports) and two reflective markers placed on the tag to allow for comparisons with the criterion system (Vicon). Distance, mean and peak velocity, acceleration, and deceleration were assessed. Validity was assessed via percentage least-square means difference (Clearsky-Vicon) with 90% confidence interval and magnitude-based inference; typical error was expressed as within-subject standard deviation. The mean differences for distance, mean/peak speed, and mean/peak accelerations in the linear drills were in the range of 0.2–12%, with typical errors between 1.2 and 9.3%. Mean and peak deceleration had larger differences and errors between systems. In the COD drill, moderate-to-large differences were detected for the activity performed in the centre of the court, increasing to large/very large on the side. When filtered and smoothed following a similar process, the UWB-based positioning system had acceptable validity, compared to Vicon, to assess movements representative of indoor sports.     

特定领域科技前沿跟踪信息源挖掘与获取策略研究——以第五代移动通信技术（5G）为例

[目的/意义]特定领域科技前沿情报跟踪工作需要构建信息源体系,而目前针对科技前沿跟踪信息源挖掘与获取策略研究还比较欠缺。[方法/过程]本文结合情报实践工作,对科技前沿信息源相关概念给予界定,对科技前沿信息特征及信息源挖掘方法加以归纳分析,并以5G领域为具体研究案例,从信息源主体间关联性、信息源挖掘与甄别方法、信息源直接获取三方面,探索科技前沿跟踪信息源获取策略。[结果/结论]研究提出了中心扩散、人机结合、权威发布获取三大科技前沿跟踪信息源挖掘与获取策略,以期对战略情报研究与实践工作有所借鉴。     

Eye Movement Modeling Examples guide viewer eye movements but do not improve learning

Recent research has tested whether Eye Movement Modeling Examples (EMMEs) can effectively cue attention and improve learning. However, the effects of EMMEs are variable, and the degree to which viewers follow these cues remains unclear. In the current paper, we compared screen-captured instructional videos that included an EMME in the form of a transparent circular overlay depicting the instructor's gaze location with identical videos that lacked this cue. We observed that EMMEs drove viewer saccades to cued locations and resulted in shorter distances between viewer gaze and the EMME, but learning performance and video preference were unaffected by the presence of an EMME. We argue that EMMEs can effectively guide attention, but the range of circumstances under which they improve learning may be limited.     

The achievement gap: The impact of between-class attainment grouping on pupil attainment and educational equity over time

Despite extensive research on attainment grouping, the impact of attainment grouping on pupil attainment remains poorly understood and contested. This paper presents evidence from a study conducted with 2944 12–13 year olds, from 76 schools in England, who were allocated to between-class attainment groups (‘setting’) in English and mathematics over the first 2 years of secondary schooling. After controlling for prior attainment, pupils in the top set performed significantly better than pupils in the middle and bottom sets in both English and mathematics. The findings indicate a widening gap in attainment, especially in the case of English. Findings, especially in the case of mathematics, provide more evidence of a relative benefit for pupils placed in top sets than a relative detriment for those in bottom sets.     

国家高新区政策机制演进研究——一个基于政策过程的分析框架

国家高新区发展变迁史也是一部政策机制演进史。本文将通过国家高新区政策机制的“D-A-T-P”理论分析模型，分析政策机制演进的逻辑和规律。研究表明，国家高新区政策机制演进呈现规律性特征:需求触发机制从国家战略向个体创新需求转变；目标导向机制从点上改革突破向面上辐射带动转变；工具实现机制从单型工具向多型工具转变；绩效跟踪机制从经济单一向度向高质量综合向度转变。本文结合国家高新区政策机制演进经验，从促进政策供求匹配、形成政策目标共识、优化政策工具结构、畅通政策绩效链路四个方面提出对策建议。