6,501 research outputs found

    Semantic-driven matchmaking of web services using case-based reasoning

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    With the rapid proliferation of Web services as the medium of choice to securely publish application services beyond the firewall, the importance of accurate, yet flexible matchmaking of similar services gains importance both for the human user and for dynamic composition engines. In this paper, we present a novel approach that utilizes the case based reasoning methodology for modelling dynamic Web service discovery and matchmaking. Our framework considers Web services execution experiences in the decision making process and is highly adaptable to the service requester constraints. The framework also utilises OWL semantic descriptions extensively for implementing both the components of the CBR engine and the matchmaking profile of the Web services

    Control of molecular dynamics with zero-area fields: Application to molecular orientation and photofragmentation

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    The constraint of time-integrated zero-area on the laser field is a fundamental, both theoretical and experimental requirement in the control of molecular dynamics. By using techniques of local and optimal control theory, we show how to enforce this constraint on two benchmark control problems, namely molecular orientation and photofragmentation. The origin and the physical implications on the dynamics of this zero-area control field are discussed.Comment: 19 pages, 7 figure

    Looking to score: the dissociation of goal influence on eye movement and meta-attentional allocation in a complex dynamic natural scene

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    Several studies have reported that task instructions influence eye-movement behavior during static image observation. In contrast, during dynamic scene observation we show that while the specificity of the goal of a task influences observers’ beliefs about where they look, the goal does not in turn influence eye-movement patterns. In our study observers watched short video clips of a single tennis match and were asked to make subjective judgments about the allocation of visual attention to the items presented in the clip (e.g., ball, players, court lines, and umpire). However, before attending to the clips, observers were either told to simply watch clips (non-specific goal), or they were told to watch the clips with a view to judging which of the two tennis players was awarded the point (specific goal). The results of subjective reports suggest that observers believed that they allocated their attention more to goal-related items (e.g. court lines) if they performed the goal-specific task. However, we did not find the effect of goal specificity on major eye-movement parameters (i.e., saccadic amplitudes, inter-saccadic intervals, and gaze coherence). We conclude that the specificity of a task goal can alter observer’s beliefs about their attention allocation strategy, but such task-driven meta-attentional modulation does not necessarily correlate with eye-movement behavior

    Prevalence, Pathogenicity, Virulence, Antibiotic Resistance, and Phylogenetic Analysis of Biofilm-Producing Listeria monocytogenes Isolated from Different Ecological Niches in Egypt: Food, Humans, Animals, and Environment

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    Serious outbreaks of foodborne disease have been caused by Listeria monocytogenes found in retail delicatessens and the severity of disease is significant, with high hospitalization and mortality rates. Little is understood about the formidable public health threat of L. monocytogenes in all four niches, humans, animals, food, and environment, in Egypt. This study analyzed the presence of L. monocytogenes collected from the four environmental niches and bioinformatics analysis was implemented to analyze and compare the data. PCR was used to detect virulence genes encoded by pathogenicity island (LIPI-1). prfA amino acid substation that causes constitutive expression of virulence was common in 77.7% of isolates. BLAST analysis did not match other isolates in the NCBI database, suggesting this may be a characteristic of the region associated with these isolates. A second group included the NH1 isolate originating in China, and BLAST analysis showed this prfA allele was shared with isolates from other global locations, such as Europe and North America. Identification of possible links and transmission pathways between the four niches helps to decrease the risk of disease in humans, to take more specific control measures in the context of disease prevention, to limit economic losses associated with food recalls, and highlights the need for treatment options

    Letter from Osman D. Goodrich to Robert Stuart

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    Ina letter of Osman D. Goodrich to Robert Stuart, Acting Superintendent of Indian Affairs, Goodrich reported that 24 Native American scholars were now in the school conducted by Rev. George N. Smith.https://digitalcommons.hope.edu/vrp_1840s/1043/thumbnail.jp

    Management accounting system: Insights from the decision making theories

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    Management accounting system (MAS) improves business growth through quality decision making process, but scholars have mixed views about MAS and constantly debate its efficacy. Drawing on the decision-making theories, the current research deviates from the debates and adopts a ‘think-outside-the-box’ approach, aiming to advance the knowledge of MAS's efficacy. Research data are gathered from the MAS literatures and cognate studies. Following the research findings, we identify a new pre-factor (thinking style) and incorporate it into the MAS. Specifically, decision makers' cognitive process is found to affect the design and implementation of MAS, as rational thinking style, administrative thinking style, and political thinking style may affect the MAS's efficacy differently. Research findings have brought valuable insights to the MAS literatures, by highlighting the strength and weakness of different thinking styles in designing management accounting system. Moreover, decision makers, such as organizational leaders and business managers, are encouraged to monitor their thinking styles: that is, with better understanding of thinking styles, decision makers can better utilize MAS and rectify the style-driven deficits in time

    Role-Play Technique as an Antecedent of Performance in English Language: Evidence from Secondary Schools in Wareng District, Uasin Gishu County, Kenya

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    In Kenya, there is a national concern over English language dismal performance over the years in Kenya Certificate of Secondary Education (K.C.S.E). Blame has been put on teachers of English language for relying on techniques that favor them at the expense of their students. This article therefore sought to assess the use of role-play technique as the most appropriate technique to improve performance in K.C.S.E English language. Moreover, it sought to establish the attitude of both teachers and students towards the use of role-play technique. Findings, conclusion and recommendations are presented.Keywords: Role-play technique, attitude, performanc
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