试谈大气与大气压

分析阐述了大气圈和大气压强，举例计算了大气圈的质量．     

Critical incidents in pre-service EFL teachers’ identity construction process

ABSTRACT

Knowledge and human identity are socially constructed phenomena. Like other aspects of human identity, teacher identity is shaped through social influences. Some of the social influences that contribute to teacher identity development happen through critical incidents that teachers or teacher candidates experience. The current study, adopting a critical incident analysis perspective, attempts to ascertain the nature of the critical incidents that 49 pre-service teachers of EFL have experienced throughout their English learning process. It also tries to uncover the effects of these critical incidents on their English learning and teacher identity. The data for the research was collected using a Critical Incident Form developed by the researchers and focus group interviews. The findings indicated that pre-service ELT teachers’ early learning experiences included certain critical incidents. An inductive quantitative analysis of these incidents revealed that they can be categorized into three themes: people, context, and outcome. Exploring the nature of critical incidents and their role in the construction of English language teacher identity will hopefully be a benefit to teachers and teacher educators.     

武术运动员退役前后骨量丢失的身体部位及年龄特征

应用DXA双能量X射线骨密度仪测量退役前后武术运动员前臂、腰椎和髋部骨量,探讨PBM及骨量丢失的身体部位及年龄特征。结果:男性PBM,前臂(40~)0.807±0.124g/cm2;腰椎1-4(25~)1.005±0.138g/cm2;大转子(20~、25~)0.801±0.094g/cm2,股骨颈(15~、20~、25~)0.974±0.132 g/cm2,三角区(20~、25~)0.904±0.110g/cm2。女性PBM,前臂(35~)0.723±0.107g/cm2;腰椎1-4(25~)0.952±0.112g/cm2;大转子(25~、30~)0.735±0.078g/cm2;股骨颈(20~、25~)0.863±0.092g/cm2;三角区(25~)0.794±0.089g/cm2。结论:男性PBM高于女性,25~岁PBM出现的部位最多,PBM后,三角区骨量丢失幅度最大,女性大于男性。男性PBM,腰椎1-4股骨颈三角区前臂大转子,在15~到25~出现,股骨颈、大转子、三角区PBM稳定2~3个年龄段。女性PBM,腰椎1-4股骨颈三角区大转子前臂,在20~到30~出现,股骨颈、大转子稳定2个年龄段。     

知情权和媒体的代表性

文章通过对知情权的界定和媒体代表性的探讨,说明知情权并非媒介所想象的理所当然,而目前媒体的代表性也值得追问,并试图寻求媒体代表公众的途径。     

现代传媒与脑白金“奇观”

奇观是法国思想家居伊·德波在其所著的《景观社会》中提出的核心理论。在德波看来,奇观(或译景观)就是指商品已经占领了整个社会生活的全部,它是一种由感性的可观看性建构起来的幻象,它的存在由表象所支撑,以各种不同的影像为其外部显现形式。脑白金在中国市场长盛不衰,畅销多年,实属保健品市场的一大奇观。本文试图运用居伊·德波的奇观理论,对脑白金的广告奇观和消费奇观做出分析。     

“Books.Google.RU”—Google's Mass Digitization of Russian‐Language Books

ABSTRACT. Google is pursuing “mass digitization” of Russian books as part of its efforts that now involve more than a dozen partners, although so far there is no separate Russian‐language search interface. How easy is it to find materials in books.google.com that are in Russian? What do users need to know to maximize their results?     

高等教育大众化的教育质量观

随着高等教育大众化的发展,教育质量成为人们普遍关心、也十分担心的问题。本文从高等教育质量的内涵出发,论述了进入大众化阶段,随着人才观和教育功能观的改变,高等教育质量观也应从“精英教育”观的思想中解放出来,树立一种建立在适应性、多样性、发展性、前瞻性和国际性基础之上的全面的教育质量观。并提出了相应的保证措施。     

基于高校教务管理的邮件群发系统设计与实现

本文基于VB开发的用于高校的邮件群发系统,对邮件发送过程的技术实现做了说明,针对群发登陆的安全加密算法做了深入的探讨,应用本系统进行高校学生管理和服务相关的邮件发送,为提供高校的工作效率,增强对学生的服务效果起到了积极的促进作用。     

大众传播在非物质文化遗产保护与传承中的积极作用

本文从大众传播与非物质文化遗产的内涵、非物质文化遗产的传播方式、存在的问题入手,在充分肯定大众传播对非物质文化遗产保护工作所发挥的积极的社会功能和社会责任的同时,以辽宁省鞍山岫岩满族自治县非物质文化遗产保护为个案,重点阐述大众传播在非物质文化遗产保护与传承中发挥的积极作用。     

新工科背景下基于众创空间的高校创新创业研究

通过对创新创业的国家方针政策的了解,依托学校的政策,建立多个环节的教学培养体系,探索以专利等创新成果为导航,集创新需求发现、协同创新、创意评价、创意IP化和价值实现全链条的线上线下相结合的众创空间,实现高校创新教育实施,适应新工科专业发展需求。