多元智能理论视野中的体育教学评价研究

多元智能理论科学地描述了人类的智能结构和人的发展潜能等问题,它启示我们在体育教学中应转变旧的教学评价观,建立起多元化的体育教学评价观念,以尽快适应当前我国学校体育改革的发展需要。多元智能理论视野中的体育教学评价主要涉及评价方式、评价主体和评价内容的变革等。     

基于“问题-用户”的网络问答社区专家发现方法研究

[目的/意义] 以网络问答社区为研究对象,提出基于“问题-用户”传播网络的专家发现方法,为建立用户激励机制、完善专家推荐方法提供借鉴。[方法/过程] 通过分析开放问答模式的特点,以“问题”和“用户”为节点、“答题关系”为有向边,构建“问题-用户”权威值传播网络,利用答案质量改进加权的HITS算法。[结果/结论] 提出的算法可以较好地兼顾用户的答题数量与答案质量,能够选择出活跃度高、知识渊博的用户作为专家。     

"编辑学者化"与依靠专家学者开放办刊--高校学报改革发展的必由之路

"编辑学者化"是创办精品学术理论期刊的必然要求.它的含义应该是指编辑人员为适应办好学报的需要,在编辑实践中自觉学习和研究与编辑工作相关的学问,逐步达到学者水平的具有连续性的动态行为过程.它的实现是一个长远的目标.依靠专家学者办刊不仅是缓解目前高校学报编辑力量薄弱的有效途径,而且是创办精品学术理论期刊的长期战略措施.向学界社会开放,是高校学报改革发展的必由之路.     

Rate Control for MPEG-4 Bit Stream

Totransmitthemultimediadataovertheinternet ,pre encodedvideobitstreamsarepreferablebecauseofthelimitofthenetworkbandwidth .Inmostcases ,theencodershouldknowthechannelcharacteristicsinad vanceandencodethemasparameters .Consequently ,theflexibilityisreduced .Theratecontrolisemployedtocontroltheoutputbitrateaccordingtonetworkcondi tions.Forwirelessnetworks ,theirbandwidthsaremuchmorelimitedthanwirenetworks.Soratecontrolbecomesespeciallyimportantfortransmittingmultimediaoverthewirelessdomains[1- …     

关于当事人自行委托鉴定结论性质的探讨

目前司法实践中对当事人自行委托鉴定结论性质存在着混乱的认识。在区分当事人自行委托鉴定结论和法定鉴定结论的异同之后,应建立广义鉴定结论概念,将法定鉴定结论和当事人自行委托鉴定分别以公鉴定和私鉴定的性质纳入其中,确立当事人自行委托鉴定结论的证据属性,以提高诉讼效率,节约诉讼成本,促进司法公正和适用法律统一,并使当事人主动利用自行委托鉴定结论保护其合法权益。     

基于专家的“农远”课堂教学反思

教师反思着眼于信念系统、知识系统、教学实践及教师以专家引领、同伴互助、学生督导为中心的环境因素等方面。农村中小学现代远程教育工程(以下简称"农远"工程)项目,学校教师反思活动表现在教学设计、课堂教学观摩、教师课后反思、专家诊断咨询、反思经验推广等几个阶段。据此教师反思流程的设计,文中给出了甘肃张掖某"农远"模式二项目(卫星宽带传输教育资源模式)学校张老师的教学反思案例——《垂线和平行线的画法》。     

新课程背景下高师教育与高中教育良性衔接的对策

普通高中新课程实验,对高师院校的教育教学提出了挑战.面对挑战,必须对高师院校的教育教学进行新的思考,从教育目的的制定、课程内容的编制、课堂教学的方式方法、课程评价体系的重建等诸方面进行改革和探索,以期和高中教育更好地衔接,培养更多的新型师资.     

国内外信息化人才建设的经验及启示

信息化人才是目前国内外竞争最激烈的稀缺资源,全球新一轮的信息化人才争夺具有其新的态势和特点,国内外先进地区信息化人才建设的做法和经验,给了我们新的启示.     

‘We Have to Go Where the Money Is’—Dilemmas in the Role of Nutrition Scientists: An Interview Study

In Western societies scientists are increasingly expected to seek media exposure and cooperate with industry. Little attention has been given to the way such expectations affect the role of scientific experts in society. To investigate scientists’ own perspectives on these issues eight exploratory, in-depth interviews were conducted in Denmark with reputable nutrition scientists. Additionally, eight interviews were held with ‘key informants’ from the field of nutrition policy. It was found that nutrition scientists experience two dilemmas: first, between their aspiration to make a collective impact on public health and the powerful incentives of each to appear frequently in the media with new messages; second, between their need to cooperate with the food industry for financial reasons and their fear that this may compromise their independence and scientific integrity. It is argued that the dilemmas identified in this study should be dealt with openly by the relevant groups of scientists.     

Essential Concepts of Nanoscale Science and Technology for High School Students Based on a Delphi Study by the Expert Community

Nanoscale science and technology (NST) is an important new field in modern science. In the current study, we seek to answer the question: ‘What are the essential concepts of NST that should be taught in high school'? A 3-round Delphi study methodology was applied based on 2 communities of experts in nanotechnology research and science education. Eight essential concepts in NST were identified. Each concept is accompanied by its explanation, definition, importance and includes subcategories that compose it. Three concepts emerged in the Delphi study, which were not identified before: functionality, classification of nanomaterials, and the making of nanotechnology. Differences between the concepts suggested by the 2 communities of experts were found. The results of this study serve as a tool to examine different nanotechnology programs that were reported thus far and to make recommendations for designing a NST program for high school students that includes the essential concepts.