中国的译校问题

This article examines school choice, one of the most debated issues in Chinese education beginning in the early 1990s. To start with, it depicts the origin of school choice. Secondly, the main reasons contributing to school choice are analysed: the disparity among schools, political and economic changes, the system of promotion to the next stage of school, and historical and cultural reasons. The reason why schools enrol school choice pupils is also analysed. Then, the reactions of the government to school choice, insisting on the policy of neighbourhood admissions, supporting weak schools, and encouraging the development of nongovernment schools, are analysed. Finally, the debate about school choice is discussed. To sum up, school choice in China is a completely urban phenomenon. It is a demand of social group with high social economic status. While the social gap widens, school choice is an unavoidable issue in education. Therefore, the problem faced by the government is not simply to prohibit it, but how to deal with it.     

Environment map building and localization for robot navigation based on image sequences

SLAM is one of the most important components in robot navigation. A SLAM algorithm based on image sequences captured by a single digital camera is proposed in this paper. By this algorithm, SIFT feature points are selected and matched between image pairs sequentially. After three images have been captured, the environment＇s 3D map and the camera＇s positions are initialized based on matched feature points and intrinsic parameters of the camera. A robust method is applied to estimate the position and orientation of the camera in the forthcoming images. Finally, a robust adaptive bundle adjustment algorithm is adopted to optimize the environment＇s 3D map and the camera＇s positions simultaneously. Results of quantitative and qualitative experiments show that our algorithm can reconstruct the environment and localize the camera accurately and efficiently.     

关于高三考生普通高校招生考试法律意识的调查研究

本文对北京、上海、杭州、重庆以及厦门等地部分高三学生进行了有关普通高校招生考试法律意识的问卷调查,分析了当前我国考生法律意识、权利意识的现状。文章认为,当前我国考生的法律意识普遍偏低,并呈现出一定的层次性、矛盾性。为此,作者提出了具体的对策。     

高校年鉴编纂机制创新与实践路径

高校年鉴编纂是全国各高校应该积极实践和探索的重要工作之一。当前,高校年鉴编纂工作普遍存在的问题是:内容欠规范、信息可利用性低和编制周期不确定等。解决这些问题的有效途径是创新年鉴编纂工作机制,有效提高年鉴编纂规范性和时效性,具体的实践路径为:将主体编纂工作关口前移,由编辑部门承担编纂主体任务,简化编纂流程等。     

整体视阈下深度学习的生命价值意涵及其系统建构

深度学习的理解需要从单一视角走向整体视阈。基于整体视阈将深度学习视为一个完整的生命现象系统,在整体的发展中呈现深度学习的生命意蕴,并以系统方法揭示和展现深度学习的整体性意涵。深度学习系统在知识、思维、能力、情境四要素的相互作用与发展中呈现其意义与价值。在意义构建的整体推动下,四要素不断交互作用并形成深度学习机制。其中,意义的设想、觉醒与建构是深度学习系统的自组织自循环动力;能力的生成、应用与迁移是维续深度学习系统的核心动力:共振情境的有力推进是维续深度学习系统的外部动力。     

Urinary donor-derived cell-free DNA as a non-invasive biomarker for BK polyomavirus-associated nephropathy

Journal of Zhejiang University-SCIENCE B - BK polyomavirus-associated nephropathy (BKPyVAN) is a common cause of allograft failure. However, differentiation between BKPyVAN and type I T...     

基于RCMLM模型的数学试卷性别DIF研究

RCMLM模型是基于Rasch测量理论的通用拓展模型。利用RCMLM模型对一份普通高中数学试卷进行不同性别的DIF分析。结果表明:该模型可对具有二分计分和多分计分的试题同时进行DIF分析,避免了以往分别对两种计分方式试题进行DIF分析的弊端,保持了试卷的完整性,使DIF分析结果更加有效。     

基于CiteSpace的国内外泛在学习研究演变可视化分析

本文使用CiteSpace 5.6.R2,对国内外核心期刊中的泛在学习研究论文进行可视化分析｡ 研究发现国内外关于泛在学习研究呈现多领域､多视角､平稳发展的特点;研究热点主要聚焦于泛在学习环境和网络资源,国内研究更注重学习资源的分析,国外研究更注重学习模型的建构和实践｡在研究趋势方面,国内外均经历了理论建构和模型设计的阶段,逐步向实证研究转变,但国内实证研究并不突出且缺乏传承性,有待国内研究者进一步补充｡     

学科竞赛视域下高校创新人才培养模式研究

学科竞赛作为创新型人才培养的重要支撑,能够弥补当前创新型人才培养的短板。文章基于创新人才培养的迫切要求,提出包括学科竞赛培育体系和学科竞赛支持体系两大核心动力、学科竞赛与科创项目双轮驱动的“双核双驱动”创新人才培养模式,并结合实践数据指出该模式对创新型人才培养具有重要的促进作用。     

种植活动中幼儿品格启蒙教育刍议

种植活动是一种让幼儿亲近自然的最佳方式,既能够让幼儿体验播种、照料、收获的快乐,又能够在活动中培养幼儿耐心、责任心以及探索周围世界的好奇心。幼儿教育工作者应不断更新教育理念,创新教学手段,用生动有趣的教学方法开展种植活动,培养幼儿热爱家乡、遵守规则、敢于探索、团结合作的品格。