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1.
Issues of plagiarism are complex, and made all the more complicated by students’ increasing use of the World Wide Web as a research space. In this article, we describe several situations we faced as teachers in writing-intensive classrooms—experiences common to most teachers of writing. We share these examples to explore how issues related to plagiarism and its effects are both reproduced and change in new research spaces. We also share these stories to discuss how we can best handle plagiarism in first-year writing classrooms and how we can best equip students with the tools necessary to do appropriate research—both online and offline.  相似文献   

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当美国音乐电视台fuse想要提升自己的形象时,Juxt Interactive、一只法国雪貂和一个丑毙了的仙女就这么出现了,它们一起创造头韵式的魔法。[编者按]  相似文献   

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SUMMARY

This article will address the problems of developing and implementing a federated searching system and the involvement by reference staff expected to use, teach, and promote it. Implementation of federated search usually begins with developing basic technical functionality and then progresses to increased participation by public service librarians and system users in order to refine searching interfaces and content retrieval mechanisms and display. From the reference perspective, some impediments occurred in utilizing the federated search system since reference staff did not participate in the development of the product; since there was resistance to the concept of the product by instructional staff; and since performance inconsistencies and the use of a complex interface hampered functionality. This article will address the evolution of organizational stakeholder participation in the development of the federated search system at the Loyola Notre Dame Library.  相似文献   

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The problem of ‘information content’ of an information system appears elusive. In the field of databases, the information content of a database has been taken as the instance of a database. We argue that this view misses two fundamental points. One is a convincing conception of the phenomenon concerning information in databases, especially a properly defined notion of ‘information content’. The other is a framework for reasoning about information content. In this paper, we suggest a modification of the well known definition of ‘information content’ given by Dretske(Knowledge and the flow of information,1981). We then define what we call the ‘information content inclusion’ relation (IIR for short) between two random events. We present a set of inference rules for reasoning about information content, which we call the IIR Rules. Then we explore how these ideas and the rules may be used in a database setting to look at databases and to derive otherwise hidden information by deriving new relations from a given set of IIR. A prototype is presented, which shows how the idea of IIR-Reasoning might be exploited in a database setting including the relationship between real world events and database values.
Malcolm CroweEmail:
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《Data Processing》1986,28(4):195-198
Those who work in the field of database are constantly being challenged both by the burgeoning nature of the field and by the rapidity of new developments. One of the new emerging areas is ‘data administration’; this refers to the management, planning and documentation of the data resource of a company.The key concept in the move towards data administration has been that data, like people, money and materials should be treated as a critical resource that any company has to manage. Providing accurate, relevant and timely information entails a significant cost for a company and presents a substantial challenge.  相似文献   

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An almighty row has broken out in French banking circles and the dust has not settled yet. The much-vaunted security of the Cartes Bancaires system, which is built around the world’s first smart debit/credit card, has been cracked and the banks are still reeling under the shock.  相似文献   

11.
The Nb–Ni system is reassessed on the basis of a critical literature review involving recent experimental data. These newly published experimental data include the phase relation associated with the NbNi8 phase, phase transition temperatures resulting from selected alloys, all invariant reaction temperatures, and enthalpies of mixing of liquid, as well as the crystallographic data on the μμ (Nb7Ni6) phase. A consistent thermodynamic data set for the Nb–Ni system is obtained by optimization of the selected experimental values. The calculated phase diagram, crystallographic properties and thermodynamic properties agree reasonably with the experimental data. Noticeable improvements have been made, compared with the previous thermodynamic optimizations.  相似文献   

12.
ce and technology books to science and technology communication. The analyses show that the breeds and printing numbers of science and technology books are in good situation. They are of great variety, their printing numbers increase steadily; the contents of the books become rich and diversified.  相似文献   

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This article is devoted to the numerical solution of the inviscid two-layer shallow water system. This system may lose the hyperbolic character when the shear between the layer is big enough. This loss of hyperbolicity is related to the appearance of shear instabilities that leads, in real flows, to intense mixing of the two layers that the model is not able to simulate. The strategy here is to add some extra friction terms, which are supposed to parameterize the loss of mechanical energy due to mixing, to get rid of this difficulty. The main goal is to introduce a technique allowing one to add locally and automatically an ??optimal?? amount of shear stress to make the flow to remain in the hyperbolicity region. To do this, first an easy criterium to check the hyperbolicity of the system for a given state is proposed and checked. Next, we introduce a predictor/corrector strategy. In the predictor stage, a numerical scheme is applied to the system without extra friction. In the second stage, a discrete semi-implicit linear friction law is applied at any cell in which the predicted states are not in the hyperbolicity region. The coefficient of this law is calculated so that the predicted states are driven to the boundary of the hyperbolicity region according to the proposed criterium. The numerical scheme to be used at the first stage has to be able to advance in time in presence of complex eigenvalues: we propose here a family of path-conservative numerical scheme having this property. Finally, some numerical tests have been performed to assess the efficiency of the proposed strategy.  相似文献   

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We present a natural deduction proof system for the propositional modal μ-calculus and its formalization in the calculus of inductive constructions. We address several problematic issues, such as the use of higher-order abstract syntax in inductive sets in the presence of recursive constructors, and the formalization of modal (sequent-style) rules and of context sensitive grammars. The formalization can be used in the system Coq, providing an experimental computer-aided proof environment for the interactive development of error-free proofs in the modal μ-calculus. The techniques we adopt can be readily ported to other languages and proof systems featuring similar problematic issues.  相似文献   

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Translation memory tools now offer the translator to insert post-edited machine translation segments for which no match is found in the databases. The Google Translator Toolkit does this by default, advising in its Settings window: “Most users should not modify this”. Post-editing of no matches appears to work on engines trained with specific bilingual data on a source written under controlled language constraints. Would this, however, work for any type of task as Google’s advice implies? We have tested this by carrying out experiments with English–Chinese trainees, using the Toolkit to translate from the source text (the control group) and by post-editing (the experimental group). Results show that post-editing gains in productivity are marginal. With regard to quality, however, post-editing produces significantly better statistical results compared to translating manually. These gains in quality are observed independently of language direction, text difficulty or translator’s level of performance. In light of these findings, we discuss whether translators should consider post-editing as a viable alternative to conventional translation.  相似文献   

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One of the major issues banks are faced with in providing Internet Banking (IB) services is the adoption of these services by the customers. This study seeks answer to the question that whether bank customers’ awareness of the services and advantages of IB is effective in reducing the negative effect of customers’ perceived risk on their intention of IB adoption. To this end, the two constructs of the dimensions of the perceived risk and IB awareness are simultaneously considered. Besides, in the research model, the effect of IB awareness on each dimension of the perceived risk and the effect of these dimensions on intention of IB adoption by the customers are investigated. The results indicate that IB awareness acts as a factor reducing all dimensions of the perceived risk (including time, financial, performance, social, security, and privacy). In addition, it was found out that except for social risk, other dimensions of the perceived risk have significantly negative effect on the intention of IB adoption. Finally, proving the direct and positive effect of IB awareness on adoption intention, it was concluded that the dimensions of customers’ perceived risk plays a mediating role in the positive effect of IB awareness on IB adoption intention. In this respect, management approaches centered on the concept of IB awareness are offered for reducing the dimensions of customers’ perceived risk.  相似文献   

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The knowledge domain of anticipation is still in the process of being defined, and is therefore subject to controversies. Science was never an endeavour of consensus but rather of debate. This additional argument to the debate integrates awareness of the early Soviet/Russian contributions to a science of anticipation. From this awareness derives the understanding of why anticipation faces opposition from established viewpoints. This article ascertains that anticipation advances a fundamental view of the living. Within this view, anticipation is always expressed in action. Short of this definitory condition, anticipation fades into the grey mass of speculative predictive methods.  相似文献   

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《Ergonomics》2012,55(6):770-779
Abstract

Questions have been raised regarding the impact that providing concurrent verbal protocols has on task performance in various settings; however, there has been little empirical testing of this in road transport. The aim of this study was to examine the impact of providing concurrent verbal protocols on driving performance. Participants drove an instrumented vehicle around a set route, twice whilst providing a concurrent verbal protocol, and twice without. A comparison revealed no differences in behaviour related to speed, braking and steering wheel angle when driving mid-block, but a significant difference in aspects of braking and acceleration at roundabouts. When not providing a verbal protocol, participants were found to brake harder on approach to a roundabout and accelerate more heavily coming out of roundabouts. It is concluded that providing verbal protocols may have a positive effect on braking and accelerating. Practical implications related to driver training and future research are discussed.

Practitioner Summary: Verbal protocol analysis is used by ergonomists to understand aspects of cognition and decision-making during complex tasks such as driving and control room operation. This study examines the impact that it has on driving performance, providing evidence to support its continued use in ergonomics applications.  相似文献   

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For the problem with H-criterion and uncertain nonlinear block with a regular part of the perturbation vector, equations of a class of controllers were obtained. These controllers can exert a sufficiently small influence of the regular component on the given output process.  相似文献   

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《自动化学报》2006,32(6):F0002-F0002
In recent years, there have been rapid advances in sensor, sensor-on-a-chip, MEMS and wireless communication technologies. Now. massively distributed sensor networks are capable of linking people and the physical world together, providing platforms for information to be collected, shared, and processed in unprecedented ways. It is commonly recognized that sensor network research will lead to smart sentient spaces for our home and environment, work and leisure. It can help us to fight against disasters, protect us from hazards, and strengthen our defense. For the past few years, sensor networks research  相似文献   

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