移动商务价值网商业模式与运营机制研究

在阐述价值网体系结构与商业模式的基础上,结合移动商务的商业模式特征的分析,给出了一种移动商务的价值网生态体系模型,刻画了其结构与组成,讨论了其协同模式和运营机制,并结合案例分析,给出了发展我国移动商务运营价值网生态体系的对策与建议。     

电子政务系统中信息流的控制

随着政府上网工程的不断推进 ,电子政务 (e govern ment)在我国得到了很大的发展。电子政务系统与其他信息系统的最大区别在于 ,其中所承载的信息流和数据更为重要 ,对安全性和可靠性的要求极高。因此 ,对电子政务系统中的信息流进行控制 ,使其限制在安全策略规定的范围内 ,对保障电子政务系统的安全有着重要意义。1　公文信息流的安全问题在电子政务系统中 ,存储在系统数据库中的大量信息 ,以及系统实体之间传送的信息流主要是以文档为形式的公文。公文在网络中传输时会存在很多安全问题[1] ,例如 ,非文件接收者阅读到他无权访问的公文 ,或…     

Art Education and the Moral Injunction to be Oneself

A primary function of schooling is to impart moral discipline, and art education distills this role to its core imperative of mandated pleasure, summarised by Jacques Lacan as the ‘will to enjoy’. This manifests in the insistence that, despite producing similar outcomes, students come to recognise themselves as unique and creative. In the twentieth century, art education in the USA has developed methods for extracting supposedly intimate personal expressions from young people, albeit without demanding the technical versatility, historical knowledge and critical reflection required of mature artists – the exception to this, despite its many flaws, being so‐called Discipline‐Based Art Education, or DBAE. In this article, I begin with reflections on the untapped potential of DBAE to relate to contemporary art practices. My ideas on moral instruction are expanded upon in the second section, when I undertake a ‘backwards’ history of British and American art education, in which the ideal of art class as a site of intrinsic and authentic meaning‐making is challenged by the functional requirements of education. My last section takes up a critique of critical pedagogy, in which I use the example of a project my high school students did about Michael Jackson to challenge ways in which trauma and pleasure are seen by critical pedagogues as features of experience that conflict fatally with the educational ends of individualist autonomy.     

论"印前审读制"的建立

通过审读实践,发现目前出版物中存在的编校问题仍然很多.认为要改变这种状况,各出版单位应该组织印前审读班子,建立印前审读制.就审读员的权利和责任以及印前审读的可行性等进行论述.     

Self-energy dynamics and the mode-specific phonon threshold effect in Kekulé-ordered graphene

Electron-phonon interaction and related self-energy are fundamental to both the equilibrium properties and non-equilibrium relaxation dynamics of solids. Although electron-phonon interaction has been suggested by various time-resolved measurements to be important for the relaxation dynamics of graphene, the lack of energy- and momentum-resolved self-energy dynamics prohibits direct identification of the role of specific phonon modes in the relaxation dynamics. Here, by performing time- and angle-resolved photoemission spectroscopy measurements on Kekulé-ordered graphene with folded Dirac cones at the Γ point, we have succeeded in resolving the self-energy effect induced by the coupling of electrons to two phonons at Ω₁ = 177 meV and Ω₂ = 54 meV, and revealing its dynamical change in the time domain. Moreover, these strongly coupled phonons define energy thresholds, which separate the hierarchical relaxation dynamics from ultrafast, fast to slow, thereby providing direct experimental evidence for the dominant role of mode-specific phonons in the relaxation dynamics.     

浅析汉代妇女的婚恋自由

时代不同,妇女在婚姻关系中的地位不同,婚恋自由也不相同.汉代是一个男尊女卑的社会,妇女的地位进一步滑落,表现在婚姻恋爱上,就是其自由受到来自社会和家庭等各方面的限制.但是,汉代妇女还未完全脱离社会生产领域,贞节观念也未形成习俗禁锢她们的心灵,加上汉代距原始社会尚近,原始古风尤存,使她们拥有一定的权力和自由.她们可以自择夫婿,可以离婚、再嫁,甚至婚外恋也不受时人严厉非议.可见,汉代妇女具有比后世更多的婚恋自由.     

对我国高等体育教育改革热点问题的研究

深化 2 1世纪我国高等体育教育工作的改革 ,使之上一个新的台阶 ,是我国高等体育教育改革发展的关键。运用文献研究、调查访问、综合分析等方法 ,对当前我国高等体育教育改革的热点问题进行了研究 ,结果表明 :我国高等体育教育改革的热点较多地集中在体制改革、教学改革等方面 ,对这些问题的研究进一步推动了我国高等体育教育的改革与发展     

中国文化下的电子政务门户用户接受度分析

本文根据技术接受模型和Hofstede文化的四个维度理论对影响在中国文化背景下的电子政务门户网站用户接受行为的因素进行了探讨,提出了考虑中国文化影响因素的TAM分析模型,并结合该模型对我国的电子政务门户建设提出了一些意见和建议.     

浅谈自然常数e的命名者——欧拉

欧拉这一科学巨人的一生充满了艰辛、充满了神奇。从小热爱数学,在科学的道路上不断开拓,成年后虽然厄运不断,但始终没能动摇他那颗执著的心,他从19岁开始发表论文,直到76岁,写下了浩如烟海的书籍和论文,如今几乎每一个数学领域都可以看到欧拉的名字,欧拉在其他方面也建树颇丰,他的名字会永远被人传唱。     

日本高校创造性人才培养研究--以东京工业大学的课程改革为例

作者从日本东京工业大学课程改革的实例中,发现日本高校在创造性人才培养体制上的特点。其主要特点可以概括为增设创造性教育科目,使其与专业科目相融,形成一个完整的体系化的课程结构,同时重视智力和能力以外的情绪、意志的培养,是以知、情、意三者和谐发展为根本的创造性教育。