Lexical Quality and Reading Comprehension in Primary School Children

In a cross-sectional study, we examined the relationship between the quality of lexical representations and text comprehension skill in German primary school children (Grades 1–4). We measured the efficiency and accuracy of orthographical, phonological, and meaning representations by means of computerized tests. Text comprehension skill was assessed with a standardized reading test with questions requiring recognition of text information and inferencing. Both the accuracy of and the efficiency of access to the three types of lexical representations contributed to explaining interindividual variation in text comprehension skill. Results from a path-analytic model suggest a specific causal order of the three components of lexical quality with the quality of meaning representations partly mediating the effects of form representations.     

嵌入式系统脑流波形记录仪设计

目前,嵌入式系统已经渗透到日常生活的方方面面,诸如:掌上PDA、移动计算设备、手机上网、数字电视、汽车定位、微波炉监控、安全系统、工业自动化仪表与医疗仪器等。由此可见,嵌入式系统必然是一个技术密集、资金密集、高度分散、不断创新的知识集成系统。由于该系统具有高度自动化、响应速度快等特点,因此特别适合于要求实时和多任务的系统。对嵌入式脑流波形记录仪的设计进行了阐述。     

我国5种医药大学学报在国内外数据库中高被引论文的对比分析

【目的】 对比国内高被引论文在国外的被引情况与国外高被引论文在国内的被引情况,探讨二者的相关性,以了解国内外高被引论文的差异。【方法】 选择2017年《中国科技期刊引证报告(核心版)》医药大学学报类综合评价总分排名前5位的期刊,选取2008—2017年各期刊在CNKI中的高被引论文共512篇及WoS中高被引论文共486篇,统计分析所选文献的被引频次等相关指标。【结果】 5种期刊的CNKI高被引论文的被引频次差异较小,而WoS高被引论文的被引频次差异较大;CNKI高被引论文的被引频次远高于WoS高被引论文的被引频次;除《南方医科大学学报》外,CNKI/WoS高被引论文的被引频次与其在WoS/CNKI中的被引频次的差异不具有统计学意义(P>0.05)。【结论】 我国5种国内学术影响力较高的医药大学学报的国际影响力均较低,这些期刊国内/外高被引论文的被引频次与其在国外/内的被引频次之间的相关性均不明显,国内外对5种期刊的引用存在差异。     

高职院校人才流失原因

近年来，高职院校的人才流失非常严重，在一定程度上影响了高职教育。笔者认为导致当前我国高职院校的人才流失的原因主要有以下几方面的原因。     

基于NS2的无线网络传输性能仿真分析

探讨了IEEE 802.11 DCF的特点和NS2的结构、功能和仿真原理.通过NS2对无线网络传榆性能进行仿真测试,并提出了改善无线网络效能异常现象的有效方法.     

专升本院校图书馆用户信息需求变化及对策

用户的信息需求是图书馆信息服务的归宿。专升本后的新本科院校图书馆用户素质的提高和用户结构的改变,用户的信息需求质量、数量、范围、类型都会变化。对此进行研究,目的是为新升本科院校图书馆的文献资源建设和信息服务的调整提供依据,也为同类型院校图书馆提供借鉴。     

Cinematic Rendering in Anatomy: A Crossover Study Comparing a Novel 3D Reconstruction Technique to Conventional Computed Tomography

Integration of medical imaging into preclinical anatomy courses is already underway in many medical schools. However, interpretation of two-dimensional grayscale images is difficult and conventional volume rendering techniques provide only images of limited quality. In this regard, a more photorealistic visualization provided by Cinematic Rendering (CR) may be more suitable for anatomical education. A randomized, two-period crossover study was conducted from July to December 2018, at the University Hospital of Erlangen, Germany to compare CR and conventional computed tomography (CT) imaging for speed and comprehension of anatomy. Sixteen students were randomized into two assessment sequences. During each assessment period, participants had to answer 15 anatomy-related questions that were divided into three categories: parenchymal, musculoskeletal, and vascular anatomy. After a washout period of 14 days, assessments were crossed over to the respective second reconstruction technique. The mean interperiod differences for the time to answer differed significantly between the CR–CT sequence (−204.21 ± 156.0 seconds) and the CT–CR sequence (243.33 ± 113.83 seconds; P < 0.001). Overall time reduction by CR was 65.56%. Cinematic Rendering visualization of musculoskeletal and vascular anatomy was higher rated compared to CT visualization (P < 0.001 and P = 0.003), whereas CT visualization of parenchymal anatomy received a higher scoring than CR visualization (P < 0.001). No carryover effects were observed. A questionnaire revealed that students consider CR to be beneficial for medical education. These results suggest that CR has a potential to enhance knowledge acquisition and transfer from medical imaging data in medical education.     

亲历工程能力的项目培养

工程师的培养目标和计划应该以满足社会需求为标准.工程师应知晓国际发展趋势,同时又能倾听企业呼声.让学生亲历工程项目以培养工程意识和工程能力,以团队工作方式锻炼学生,使之适应社会上普遍适用的工作方式.教师领路不把关,让学生自主学习;实践教学基地搭台不做主,突出服务定位.悟道是知识转化为能力的内化过程,素质的培养须通过师生一招一式的交流互动和示范效仿.     

远程开放教育工科课程的引领式学习与考试测评新模式的研究

在远程开放学历教育中,工科类专业具有其独特的重要性：在国际上,一般是高质量的知名开放大学才设有理工科专业,如英国开放大学等;在国内,与高职高专蓬勃发展的局面相适应,电大的工科类专业近年来茁壮成长。然而,其开设专业所需设施与师资的高奈件要求,及其课程内容“难学”、“难考”等痼疾,是长期制约专业发展的瓶颈之一。为此,借鉴国外远程教育成功作法,构建新的引领式学习与考试测评新模式,对于探讨网络环境下理工科教学与管理有着十分重要的意义。