共查询到20条相似文献,搜索用时 109 毫秒
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Staffan Albinsson 《Creativity & Innovation Management》2018,27(3):348-357
This study investigates how Swedish musicians in the non‐profit sector accept the “entrepreneur” label for themselves. The background section describes how identity work among “serious” musicians has, historically, made them shun any facet related to money‐making. The qualitative study shows that there is some remaining reluctance. But it is obvious that freelance musicians recognize the need for entrepreneurial skills. A majority of those interviewed regard themselves as “entrepreneurs”, although in most cases it is out of necessity. It seems that the older generations are more hesitant than the younger. I conclude that it would be beneficial if musicians, during their higher education, were introduced to basic entrepreneurial skills. 相似文献
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《Ergonomics》2012,55(8):1304-1314
The aim of this study was to compare the biomechanical characteristics of sitting on a stool without a backrest (so as to encourage active sitting), sitting on a conventional office chair and standing in healthy participants. Thirteen healthy participants performed a keyboard-writing task during four (stable and unstable) sitting conditions and standing. Body segment positions and posture, postural sway and muscle activity of neck and trunk muscles were assessed with a motion capture system, a force plate and surface electromyography. The results showed that body segment positions, postural sway and trunk muscle activity were relatively similar for the stools without backrests compared with standing. All sitting conditions showed lower vertical upper body alignment, less anterior pelvic tilt and larger hip angles, compared with standing (p = 0.000). Unexpectedly, the muscle activity levels and total postural sway, sway velocity and sway in M/L and A/P directions were lower (p = 0.000) for the conditions that encouraged active sitting and standing, compared with the conventional office chair conditions. Practitioner Summary: Thirteen healthy participants performed a keyboard-writing task during different sitting conditions and standing and were analysed regarding posture, postural sway and trunk muscle activity. Surprisingly, less postural sway and less muscle activity were observed during the conditions that encourage active sitting, compared with sitting on a conventional office chair. 相似文献
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《Future Generation Computer Systems》1988,4(1):39-51
Studies on neurocomputing should be directed in two ways which in turn influence each other; In one direction concrete neural-network solutions for specific important problems should be applied to substantiate its practical significance and, at the same time, the theoretical potentialities and limitations for computation be explored on such network models. Along this direction of study, there is a staggering accumulation of results. The alternative way is to seek a more profound understanding of the algorithms used by the CNS (the central nervous system) to process informations and to know more about the molecular and cellular mechanisms underlying specific computations and memory process in neurons and neural networks. From this point of view, artificial neurons developed for neurocomputing are oversimplified to simulate real neurons. Here I will show that neurons are analogous to microcomputers whose characteristics can be classified into over 50 kinds, and that electrical events observed in neurons are a part of the many manifestations associated with neural activities and are regulated by the chemical and conformational processes inside neurons. 相似文献
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Alkis Simitsis Georgia Koutrika Yannis Ioannidis 《The VLDB Journal The International Journal on Very Large Data Bases》2008,17(1):117-149
Précis queries represent a novel way of accessing data, which combines ideas and techniques from the fields of databases and
information retrieval. They are free-form, keyword-based, queries on top of relational databases that generate entire multi-relation
databases, which are logical subsets of the original ones. A logical subset contains not only items directly related to the
given query keywords but also items implicitly related to them in various ways, with the purpose of providing to the user
much greater insight into the original data. In this paper, we lay the foundations for the concept of logical database subsets
that are generated from précis queries under a generalized perspective that removes several restrictions of previous work.
In particular, we extend the semantics of précis queries considering that they may contain multiple terms combined through
the AND, OR, and NOT operators. On the basis of these extended semantics, we define the concept of a logical database subset, we identify the
one that is most relevant to a given query, and we provide algorithms for its generation. Finally, we present an extensive
set of experimental results that demonstrate the efficiency and benefits of our approach. 相似文献
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《Card Technology Today》2004,16(2):5-6
With less than a year before the January 2005 deadline arrives for conversion to smart card-based EMV technology in Europe, a new guide has been released that answers many of the key questions for card issuers and acquirers. 相似文献
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金山 《计算机光盘软件与应用》2014,(8):174-175
利用flash可开发出界面精美、操作灵活、交互式强的课件--其中ActionScript脚本(以下简称AS脚本)是Flash内置的脚本语言,通过AS脚本有效编程、高效整合,可创作交互性更强大的游戏类交互式课件、测试类交互式课件、师生参与互动式课件等等,可大大增强Flash课件的功能性和应用性,提高flash交互式课件的辅助教学效果,促进教育教学质量的提升。 相似文献
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《Behaviour & Information Technology》2012,31(5):307-314
There is too little engagement between community computing and human - computer interaction. In the future there should be more. Better integrating community computing and human - computer interaction can help to make HCI richer and more comprehensive, conceptually and methodologically. It can help HCI to have more of an impact on society and on everyday collective life. Six examples are briefly discussed. 相似文献
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《Card Technology Today》2003,15(6):6
Ingenico has successfully complied with specifications laid down by Finread, an international standard for secure smart card readers performing interoperable transactions on the internet.This is a short news story only. Visit www.compseconline.com for the latest computer security industry news. 相似文献
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This paper is an attempt to develop a paradigm in problem solving where the notion of virtuality plays a central role. Following a brief discussion on virtual simulation, the paper attempts to identify a notion of virtuality based on the identification of the self (man or computer) with the problem solver. It is shown that such an identification/distinction possibly violates some general principle of the problem environment.To deal with this violation, a new problem is generated and a new virtualization act is required, in order to attain a correspondence between virtuality and reality. A better understanding of this approach requires a combination of analog and digital reasoning: the analog being related to the environment in which the problem solving is required, and the digital to the problem solver's mental activities.We will briefly analyze the recursive approach to problem solving and suggest a possible problem solving methodology based on virtuality. The paper concludes with comments on the relation between etnology and virtual reality. 相似文献
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《Card Technology Today》2004,16(2):3-4
The Royal Dutch Football Association (KNVB) has selected Bell ID to implement a nationwide smart ID card solution for season tickets and so-called Club Cards. 相似文献
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《Card Technology Today》2003,15(9):1-16
As London’s Oyster project gets underway, the Queensland Government in Australia is embarking on an ambitious smart card based travel plan of its own. It has just signed a US$95 million contract with Cubic Transportation Systems-Australia, a subsidiary of Cubic Corporation, requiring the transportation company to design, build, operate and maintain the region’s first smart card-based integrated ticketing system.This is a short news story only. Visit www.compseconline.com for the latest computer security industry news. 相似文献
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文章介绍了用C8051F120单片机和MCX314as组成运动控制器的方案.该方案应用存储器扩展的方法为运动控制芯片MCX314as和液晶显示模块MT22G06B的内部寄存器分配地址空间.从而实现C8051F120单片机对运动控制芯片和液晶模块的控制作用.文章还给出了MCX314和MT22G06B的驱动程序架构. 相似文献
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This paper presents a model for intention maintenance.It assumes that an intention is associated with a means network,and intention maintenance is a conflict resolution upon means networks.The difference between the viewpoints of AI planning and intention maintenance is explained first,then a model of intention,the conditions under which conflicts between the means occur and the algorithms for determining the influence of removing a means away from a means network are presented. 相似文献
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We introduce a fixedpoint algorithm for verifying safety properties of hybrid systems with differential equations whose right-hand
sides are polynomials in the state variables. In order to verify nontrivial systems without solving their differential equations
and without numerical errors, we use a continuous generalization of induction, for which our algorithm computes the required
differential invariants. As a means for combining local differential invariants into global system invariants in a sound way, our fixedpoint algorithm
works with a compositional verification logic for hybrid systems. With this compositional approach we exploit locality in
system designs. To improve the verification power, we further introduce a saturation procedure that refines the system dynamics successively with differential invariants until safety becomes provable. By complementing
our symbolic verification algorithm with a robust version of numerical falsification, we obtain a fast and sound verification
procedure. We verify roundabout maneuvers in air traffic management and collision avoidance in train control and car control. 相似文献
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Tsubasa Wakabayashi 《Datenschutz und Datensicherheit - DuD》2012,36(5):327-332
This article will show how data privacy is legally recognized and treated in Japan and argue in particular how it can (not)
play a role as a tool to combat discrimination in the workplace. The first part will depict a brief history of the development
of the ‘right to privacy’ in Japan. This part will also take a look at the national Act on Protection of Personal Information
and its complicated enforcement, paying attention to the general legal culture in Japan. The second part will observe other
laws which are related to personal data protection and legal protection against discrimination. At the end of this article
the author will make a comment on the Japanese data privacy law and its desirable development. 相似文献