《校园王》语码转换的批评性语篇分析

上世纪70年代以来,批评语言学蓬勃发展,其杰出代表人物费尔克劳提出了三维框架理论,即描写、阐释、解释三个步骤。本文试图运用费尔克劳的三维框架理论对《校园王》中出现的语码转换进行批评性语篇分析,以揭示青年话语中语码转换的特征和青年话语中语码转换的原因。通过揭示青年话语中的语码转换特征及青年话语语码转换的原因,笔者希望能够引起教师对语码转换现象的批评意识,以及人们对青年语言特征变化的普遍关注。     

三维虚拟仿真技术在发酵工厂设计教学中的应用优势

本文针对传统发酵工厂设计中工程图纸教学方法存在的诸多问题,提出嵌入三维虚拟仿真技术到发酵工厂设计中实现动态的、数字化的、三维高仿真教学模式,具有变被动学习为兴趣好学、在创造性活动中体现知识的价值以及易于实现开放式教学等优势,有利于全面提升教学质量,培养高素质应用型工程技术人才,促进发酵工厂设计教学改革。     

面向工程教育构建立体化实验实践教学体系——以信号与线性系统课程为例

该文提出将"信号与线性系统课程实验+课程设计+科研与大学生创新创业训练计划+学科竞赛+毕业设计与论文"有机融为一体,通过基本能力的叠加,推进整体素质和价值观的养成,形成立体化信号与线性系统课程工程教学新理念;采用以工程应用为出发点的特色教学模式,注重培养学生信号与系统工程实践创新能力,形成层次性、系统性和自主性的实验实践教学体系。该文研究能力叠加效应,以及训练载体设计与构建,并结合教学改革进行了有益的实践。     

党建育人在高等学校“三全育人”综合改革中的路径探讨

高等学校“三全育人”综合改革在全国高校逐步铺开,高校基层党支部作为我党开展工作的基本单元,是推动学校事业发展的战斗堡垒,其建设目标与“三全育人”综合改革实践目标高度统一。高校基层党支部要坚持教育为社会主义现代化建设服务的原则,团结广大师生群众,把好“育人方向”、建好“育人队伍”、用好“育人平台”,发挥党建育人的重要作用,为落实立德树人根本任务提供坚强的组织保障。     

Fairclough三维分析模型下的新闻话语分析——以CNN和马航官网关于马航失联飞机的新闻报道为例

以CNN和马航官网报道马航失联航班MH370的新闻为话语分析语料,借鉴Fairclough的批评话语三维分析模型,以及在此基础上拓展的理论框架,通过对比、分析语料在描述、解释和阐释等方面的不同及其所反映的国家统治阶级意识形态差异,帮助人们提高对新闻话语的敏感性,提高批判性阅读与信息接收的能力。     

沙溪斑岩铜矿三维建模及铜品位空间变异研究

本文针对沙溪斑岩铜矿床,首先构建了主矿体的三维实体模型,之后以此作为约束对主矿体内部的铜品位数值开展空间变异研究分析。运用地质统计学方法,分别对主矿体走向、倾斜和厚度方向上的实验变异函数进行了理论模型拟合。拟合结果显示,铜品位在矿体走向方向上具有最好的连续性,较高的块金常数则显示出铜品位在较小范围内有很大的随机性,进而建议矿山提高矿区的勘探密度,进一步对矿体及品位的分布进行控制。     

双基地SAR成像系统时频同步设计与试验

双基地SAR成像具有常规单基地SAR成像难以实现的一些优点。常规单基地SAR成像收发一体,很容易实现SAR成像孔径合成时间内收发信号相位相参的基本要求,但该要求却是双基地SAR成像的难点。时频同步是双基地SAR成像的关键技术,文章简述了时频同步的常用方法,提出了采用GPS＋高精度原子钟的时频同步设计方法,通过同步试验静态测试、微波暗室测试和动态同步试验的验证,表明该同步设计方法能够满足双基地SAR成像的需求。     

A prospective,randomized crossover study comparing direct inspection by light microscopy versus projected images for teaching of hematopathology to medical students

Instruction in hematopathology at Mayo Medical School has evolved from instructor‐guided direct inspection under the light microscope (laboratory method), to photomicrographs of glass slides with classroom projection (projection method). These methods have not been compared directly to date. Forty‐one second‐year medical students participated in this pilot study, a prospective, randomized, crossover study measuring educational performance during a hematology pathophysiology course. The students were randomized to one of two groups. All students received the same didactic lectures in the classroom and subsequent case‐based review of peripheral blood smears using either laboratory or projection methods, on day one with a crossover to the other method on day two. Pre‐ and post‐test examinations centered on morphology recognition measured educational performance on each day, followed by a questionnaire identifying the student's favored method. There was no significant difference in the pre‐test and post‐test scores between the two teaching methods (rank‐sum P = 0.43). Students overwhelmingly preferred the projection method and perceived it as superior (76%), although post‐test scores were not significantly different. Student's recommended method was split with 50% favoring the projection method, 43% favoring a combined approach, and 23% noting logistical challenges to the laboratory. In this study, the laboratory and projection method were equivalent in terms of educational performance for hematopathology among medicals students. A classroom‐based approach such as the projection method is favored, given the large class sizes in undergraduate medical education, as well as the ergonomic challenges and additional resources required for large group instruction in a laboratory setting. Anat Sci Educ 7: 130–134. © 2013 American Association of Anatomists.     

An integrated teaching method of gross anatomy and computed tomography radiology

It is essential for medical students to learn and comprehend human anatomy in three dimensions (3D). With this in mind, a new system was designed in order to integrate anatomical dissections with diagnostic computed tomography (CT) radiology. Cadavers were scanned by CT scanners, and students then consulted the postmortem CT images during cadaver dissection to gain a better understanding of 3D human anatomy and diagnostic radiology. Students used handheld digital imaging and communications in medicine viewers at the bench‐side (OsiriX on iPod touch or iPad), which enabled “pixel‐to‐tissue” direct comparisons of CT images and cadavers. Students had lectures and workshops on diagnostic radiology, and they completed study assignments where they discussed findings in the anatomy laboratory compared with CT radiology findings. This teaching method for gross and radiological anatomy was used beginning in 2009, and it yielded strongly positive student perspectives and significant improvements in radiology skills in later clinical courses. Anat Sci Educ 7: 438–449. © 2014 American Association of Anatomists.     

Combining fiber dissection,plastination, and tractography for neuroanatomical education: Revealing the cerebellar nuclei and their white matter connections

In recent years, there has been a growing interest in white matter anatomy of the human brain. With advances in brain imaging techniques, the significance of white matter integrity for brain function has been demonstrated in various neurological and psychiatric disorders. As the demand for interpretation of clinical and imaging data on white matter increases, the needs for white matter anatomy education are changing. Because cross‐sectional images and formalin‐fixed brain specimens are often insufficient in visualizing the complexity of three‐dimensional (3D) white matter anatomy, obtaining a comprehensible conception of fiber tract morphology can be difficult. Fiber dissection is a technique that allows isolation of whole fiber pathways, revealing 3D structural and functional relationships of white matter in the human brain. In this study, we describe the use of fiber dissection in combination with plastination to obtain durable and easy to use 3D white matter specimens that do not require special care or conditions. The specimens can be used as a tool in teaching white matter anatomy and structural connectivity. We included four human brains and show a series of white matter specimens of both cerebrum and cerebellum focusing on the cerebellar nuclei and associated white matter tracts, as these are especially difficult to visualize in two‐dimensional specimens and demonstrate preservation of detailed human anatomy. Finally, we describe how the integration of white matter specimens with radiological information of new brain imaging techniques such as diffusion tensor imaging tractography can be used in teaching modern neuroanatomy with emphasis on structural connectivity. Anat Sci Educ. 7: 47–55. © 2013 American Association of Anatomists.