Promoting Teacher Learning Through Learning Study Discourse: The Case of Science Teachers in Singapore

The potential of a theory of variation-framed learning study, a teacher professional development approach, to help teachers overcome curricular and pedagogical challenges associated with teaching new science curricula content was explored. With a group of Singapore teachers collaboratively planning and teaching new genetics content, phenomenographic analysis of data corpus from classroom observations, teacher meetings and interviews revealed teacher learning that manifested in the teachers’ experiences. These were captured as (1) increased degrees of student-centered pedagogy and challenges to teachers’ prior assumptions about science pedagogy, (2) increased awareness of possibilities and limitations of their beliefs about science pedagogy, and (3) emergence of new understandings about new curricular content and science pedagogy. The possibility of transformative and generative learning is also discussed.     

制动器摩擦表面温度测量方法的研究

为了研究汽车在制动过程中产生的大量热能而使制动器温度急剧上升对其制动性能的影响,在对制动器摩擦热的产生进行理论分析的基础上,设计了制动器试验台及其温度测量装置。采用以应变片测量技术为基础的集流环测量方式,对制动器温度测量的方法进行研究,并对测量结果进行分析,为将来进一步研究制动器的温度测量问题提供有效的帮助。     

高级英语教学模式改革初探

高级英语是英语专业的核心课程之一,着重训练学生综合英语技能尤其是阅读理解、语法修辞与写作能力。文章结合高级英语的教学任务和教学目标,针对高级英语教学亟待改革的现状,尝试提出问题式教学、语篇文体学教学、人文渗透教学这三种新颖的教学模式,希望有助于改变传统的教学模式,以扩大学生知识面,加深学生对社会和人生的理解,培养学生对名篇的分析和欣赏能力。     

英文情书与推销信函中人称的人际功能比较研究

受不同语旨的影响,为满足不同读信人的需求,写信人会对人称资源做出不同选择。英文情书中,第一人称直述,引出话题并引导读信人参与话题;第二人称对读信人产生拉力,能加强写信人与读信人的亲密关系;第三人称虽然较少使用,但丰富了人称意义的多种可能性。英文推销信中,第一人称削弱了写信人的权势地位,表达了写信人以期与读信人进行平等、友好的对话意愿;第二人称使两者实现了面对面的交流;第三人称的指代则使推销信更简洁、客观。     

抒情长诗中的自我救赎——试析电影《悲惨世界》中视听语言的叙事节奏

节奏不仅是事物运动的表现形式,也是一切艺术生命的脉搏.在当代电影艺术创作中,节奏的重要性已开始被人们越来越多的关注.本文以音乐剧电影《悲惨世界》为分析文本,从情节节奏、摄影节奏、声音节奏和剪辑节奏四个方面对其视听语言的叙事节奏加以详细的分析与解读.     

尼采与禅宗的审美境界论之异同

对尼采美学的有我之境和无我之境与禅宗美学的有我之境和无我之境进行比较分析,会发现其中具有深刻的相通性和异质性.无论是相通性还是异质性,都具有深刻的学术理论意义和现实文化意义.     

The global significance of biodiversity science in China: an overview

Biodiversity science in China has seen rapid growth over recent decades, ranging from baseline biodiversity studies to understanding the processes behind evolution across dynamic regions such as the Qinghai-Tibetan Plateau. We review research, including species catalogues; biodiversity monitoring; the origins, distributions, maintenance and threats to biodiversity; biodiversity-related ecosystem function and services; and species and ecosystems’ responses to global change. Next, we identify priority topics and offer suggestions and priorities for future biodiversity research in China. These priorities include (i) the ecology and biogeography of the Qinghai-Tibetan Plateau and surrounding mountains, and that of subtropical and tropical forests across China; (ii) marine and inland aquatic biodiversity; and (iii) effective conservation and management to identify and maintain synergies between biodiversity and socio-economic development to fulfil China''s vision for becoming an ecological civilization. In addition, we propose three future strategies: (i) translate advanced biodiversity science into practice for biodiversity conservation; (ii) strengthen capacity building and application of advanced technologies, including high-throughput sequencing, genomics and remote sensing; and (iii) strengthen and expand international collaborations. Based on the recent rapid progress of biodiversity research, China is well positioned to become a global leader in biodiversity research in the near future.     

SVC bitstream adaptation in MPEG-21 multimedia framework

INTRODUCTION Scalable video coding (SVC) (Schwarz et al., 2004) is the most promising video format for appli- cations of collaborative communication. First, SVC format, which is extended from the latest advanced video coding (AVC), is appropriate for creating a wide variety of bitrates with high compression effi- ciency. Second, an original SVC bitstream can be easily truncated in different ways to meet various characteristics and variations of devices and connec- tions. The scalabil…     

基于本体的中医知识图谱构建

为了更加有效地分析中医药知识之间的联系,优化知识的检索,共享中医领域知识,使中医更好的进行传承。本文提出了基于本体的中医核心知识图谱表示及其构建方法,研究了中医本体与知识图谱的映射方法,实现了于中医本体的中医核心知识图谱的构建,并进一步研究和实现多源知识获取技术及基于知识图谱的名老中医临证经验的发现,为进一步构建中医领域全面的知识图谱,挖掘整理中医临证经验与学术思想及建立基于信息检索技术的中医知识服务打下坚实基础。