多奇异点和Sobolev临界指数椭圆方程解的存在性与多重性

用变分方法证明了一类具有多个奇异点,Sobolev临界指数和非线性项的半线性椭圆方程正解的存在性和多重性．     

Disciplining the Future: A Critical Organizational Analysis of Internet Studies

This article provides a critical, cautionary stance toward the future structure of “Internet studies” as a field. A social constructionist reading of the process of organizing reveals the ways in which apparently obdurate structures are constructed and negotiated through everyday discursive practices. Subsequent structures and practices function ideologically to control organizational members in a concertive fashion by shaping and directing the conceptual frameworks for inquiry and action in a seemingly natural way. Definitions and metaphors construct conceptual boundaries of meaning for the field of inquiry, delimiting and protecting over time what counts as Internet and Internet studies. Over time, origins of knowledge are hidden within the structure of the organizations and a culture of unobtrusive control emerges. Unless radical measures are taken to reflexively interrogate everyday routines and habitual ways of talking in academic environments, the future field of Internet studies will not transcend the traditions of the academy but will be entrenched in and reproduce traditional structures and a traditional scholarly enterprise.     

批判性思维及其技能研究

批判性思维的核心内容是批判性精神和批判性思维技能。批判性思维技能是一种运用批判技术和策略反思性分析和解决问题的能力。依据批判性思维的教学、训练与大学生所学学科内容的关系,批判性思维技能训练可以有一般方法、沉浸方法、灌输方法和混合方法等四种。     

隐喻教学与英语专业学生批判性思维的培养

现代隐喻研究认为隐喻不仅是一种修辞手段,而且是人类认知、思维、言语和行为的基础。在英语专业教学中合理运用隐喻的认知及教学功能,可以有效地提高学生的批判性思维。     

HACCP原理在绞股蓝茶生产中的应用研究

研究了HACCP体系在绞股蓝茶生产中的应用,进行危害分析(HA),确定关键控制点(CCP),并制定相应控制限值,监控体系。通过建立HACCP计划工作模式,以提高绞股蓝茶生产质量管理水平和产品安全性。     

Online professional development for environmental educators: strategies to foster critical thinking and social interactions

Abstract

Massive open online courses (MOOCs) offer opportunities for professional development of environmental educators globally, yet we lack understanding of participants? cognitive and social learning processes and of how instructors can enhance these processes. Based on the Community of Inquiry framework, we used a survey and coded participant discussion board and Facebook posts to examine the cognitive, social, and teaching presence in the Environmental Education: Transdisciplinary Approaches to Addressing Wicked Problems MOOC, offered by Cornell University. Rather than train educators in a specific curriculum, the goal of the MOOC is to expand educators? critical and transdisciplinary thinking about the field of environmental education and to enhance social interactions to support learning, educators, and knowledge co-creation. Results indicate that cognitive presence is higher on the discussion board whereas social presence is higher on Facebook. Over half of cognitive posts focused on exploration, a lower level of learning, whereas just less than a fifth reflected higher level integration, suggesting room for enhancing cognitive learning. Our results suggest strategies to encourage higher levels of thinking and more meaningful social interactions to foster learning, educator support, and co-creation of knowledge, thereby improving online professional development.     

Collaborative feedback and reflection for professional growth: preparing first-year pre-service teachers for participation in the community of practice

Teaching has been described as an emerging community of practice. Within such professional communities, the processes of reflection and collaborative dialogue, or critical transformative dialogue, are central to the maintenance and improvement of professional practice for individuals, and the field. This paper reports on the challenges experienced by a group of first-year pre-service teachers engaging in a process of reflection and critique with peers, as they participated in a program focused on the development of core practices of teaching. These pre-service teachers' responses indicated their growing understanding of the importance of engaging in ongoing critical dialogue, as part of the “unnatural” aspects of teaching. The paper concludes with a reflection on the value of feedback from the earliest stages of professional learning.     

走过一个文学世纪(上)

论文在以总结经验和批判性反思进入“百年文学”的谱系时,主要是从中国的视点而不是单纯以西方的观念来审视这—段漫长的文学岁月,着重采取内部(中国)而非外部(西方)的准绳,来选择与确认在加世纪文学中重要的现象和问题。主要有：中国文学的现代性焦虑与实践;从文学的社会角度看文学与政治的关系;从左翼文学到延安文学;中国新文学的审美形态;现代传媒和文学生产;中国作家的情感方式与精神状况;作为特殊现象的放逐诗学与留学生文学;“西方话语”被“拿来”以后该放到怎样的中国语境和话题中运用……等等。     

临界空间与交往——电视的文化论坛模式对课堂教学的启示

教学是一种社会文化经验得以延续和发展的活动，教学交往是当代教学论发展的新理念。电视的信息传递功能和独特的艺术表现性在临界空间上与课堂教学具有相似性。从文化视角审视媒介的电视文化论坛模式，为课堂教学走向本真交往提供了借鉴意义。     

工程心理学作用、地位和进展

工程心理学研究人机系统中人的心理特征、行为规律以及人与机器和环境的相互作用。作为一门较新的心理学分支学科,正随着当今社会信息化程度的提高而逐渐被人们所重视。本文概括性地介绍了工程心理学的研究对象、核心科学问题及其在国内外的发展历程。从作业者的认知操作与工作绩效,情境意识、心理负荷与自动化,以及人机交互这三个工程心理学研究的主要领域对其研究内容与进展进行了介绍,并对学科研究方法的进展及其在工业产品设计与军事领域的应用进行了总结。最后,本文从理论和应用两方面对未来工程心理学的发展提出了建议和展望。