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701.
本文系统讨论了一类特殊股权即技术股权 ,以技术股权的概念入手 ,探讨了技术股权的来源与划分 ,并进一步分析了技术股权的特殊性  相似文献   
702.
教学技能是教师在教学过程中运用一定的专业知识和经验顺利完成某种教学任务的活动方式。本文通过对目前高师生教学技能的现状分析,从教学技能的科学性、系统性、开放性、发展性出发,提出了培养教学技能的有效途径。  相似文献   
703.
关于地理信息系统教育的思考   总被引:9,自引:0,他引:9  
介绍了地理信息系统及地理信息系统教育的发展状况 ,分析了地理信息系统教育的意义 ,探讨了地理信息系统教育的特点、内容及方法 ,并结合合肥工业大学地理信息系统专业的设置 ,提出了地理信息系统教育发展所必须重视的工作包括课程建设、师资培养、科研及教材建设等  相似文献   
704.
Online surveillance interferes with the individual's ability to control their expressive identity - to determine the scope of the social context in which their activities are to be seen and interpreted. Entrepreneurs have responded to these concerns by offering pseudonymizers, which employ cryptographic techniques to allow users to create several unlinkable personae and choose among them when engaging in various online interactions. This article investigates the tension between pseudonymity as a design paradigm for privacy technologies and as a lived practice for users. Because coming out - strategic revelation and the claiming of identity - has been at the core of the gay liberation movement, this article posits a politically and sexually active gay professional man as an ideal user of pseudonymity software, and places the design logic of pseudonymity within that particular set of social understandings. It reveals the conflicts, contradictions and trade-offs inherent in that use. Pseudonymity permits a very strong control of identity. It permits the user to segregate his public performances, and to engage in public debate without fear of bodily retribution. However, it is all but useless as a means of controlling the social context of those performances. It requires that decisions about self-presentation in certain contexts be made in ignorance of who is sharing that context, and with what resources or purpose. While it promotes the production of multiple selves, those selves are not easily lent to practices of intimacy or community. Pseudonymity also facilitates profiling practices that define and reify classes of people, even as it protects the individual from some of the repercussions of being defined as part of that class. In short, pseudonymity software is informed by a politics of heroics rather than of community.  相似文献   
705.
在简述技术与技术世界概念的基础上,指出了技术世界与人工自然之间的差异。分析了实践活动对技术世界发展的决定作用,以及技术世界的结构,力图确立技术世界的本体论地位。  相似文献   
706.
Disruptive innovations often engage in a fierce battle with incumbent technologies for hegemony. Past studies on technological innovations are silent about factors that extend the duration of the ‘era of ferment’—that is, the period during which competing technologies fight for dominance. We argue that complexity of the underlying technology, ecological and institutional dynamics may permit coexistence of competing technology regimes. The paper illustrates such coexistence by discussing the persistence of disparate technologies in steel making and kidney disease treatment. We conclude that the process of ‘creative destruction’ can be delayed in certain settings.  相似文献   
707.
The new media industries are popularly regarded as cool, creative and egalitarian. This view is held by academics, policy-makers and also by new media workers themselves, who cite the youth, dynamism and informality of new media as some of its main attractions. This paper is concerned with what this mythologized version of new media work leaves out, glosses over and, indeed, makes difficult to articulate at all. Themes include pervasive insecurity, low pay, and long hours but the particular focus of the paper is on gender inequalities in new media work. Despite its image as 'cool', non-hierarchical and egalitarian, the new media sector, this paper will argue, is characterized by a number of entrenched and all too old-fashioned patterns of gender inequality relating to education, access to work and pay. Moreover, a number of new forms of gender inequality are emerging, connected - paradoxically - to many of the features of the work that are valued - informality,autonomy,flexibility and so on. Drawing on a study of 125 freelance new media workers in six European countries, this paper explores these issues and argues that the new forms of sexism in new media represent a serious challenge to its image of itself as cool, diverse and egalitarian.  相似文献   
708.
信息化代表着21世纪新的生产力发展方向,信息化水平的高低已成为衡量一国综合国力强弱的主要标准 之一。当前的全球信息化浪潮,既给我国社会发展带来了良好的发展机遇,也对我们提出了严峻的挑战。  相似文献   
709.
Regularity of the Generalized Quadratic Production Model: A Counterexample   总被引:1,自引:0,他引:1  
Recently there has been a growing tendency to impose curvature, but not monotonicity, on specifications of technology. But regularity requires satisfaction of both curvature and monotonicity conditions. Without both satisfied, the second order conditions for optimizing behavior fail and duality theory fails. When neither curvature nor monotonicity are imposed, estimated flexible specifications of technology are much more likely to violate curvature than monotonicity. Hence it has been argued that there is no need to impose or check for monotonicity, when curvature has been imposed globally. But imposition of curvature may induce violations of monotonicity that otherwise would not have occurred. We explore the regularity properties of our earlier results with a multiproduct financial technology specified to be generalized quadratic. In our earlier work, we used the usual approach and accepted the usual view. We now find that imposition of curvature globally and monotonicity locally does not assure monotonicity within the region of the data. Our purpose is to alert researchers to the kinds of problems that we encountered and which we believe are largely being overlooked in the production modelling literature, as we had been overlooking them.  相似文献   
710.
针对目前我国大蒜产业链各环节技术应用水平普遍较低的问题,文章在技术进步理论研究的基础上,根据社会行为科学的一般机理,运用系统分析方法对大蒜产业链技术进步的动力机制进行了研究,并将大蒜产业链技术进步主体界定为大蒜种植农户、加工企业及经销商。在此基础上,通过对大蒜产业链各环节主体技术进步动力的构成及相互作用关系的分析,构建了大蒜产业链技术进步动力机制系统模型,并讨论了机制的运行机理。研究表明:大蒜产业链技术进步动力包括主体内在需要动力和外部环境驱动力两种,其中内在需要动力分为利益需要动力和自身发展需要动力,而外部环境驱动力则包括技术推力、市场推力和政府推力;产生这些动力的动力源———大蒜种植农户、加工企业、经销商、农业科研推广机构、地方政府及大蒜产品市场之间的相互作用促使各种动力能够协同作用,激励大蒜产业链技术进步。  相似文献   
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