Objectives: The aim of this study was to determine whether the serum nitrite plus nitrate (NOx) level correlates with biomarkers that are known components of the metabolic syndrome (MetS). Methods: Serum NOx levels we...
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Nowadays, there is a growing interest in telemedicine in Brazil, because the country is the fifth largest country in the world and there is a huge gap between the population size and the number of available doctors. I...
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Nowadays, there is a growing interest in telemedicine in Brazil, because the country is the fifth largest country in the world and there is a huge gap between the population size and the number of available doctors. Institutions and the government are considering solutions for the integration and availability of data produced by several different systems. In this paper we present a contribution that is characterized by an asynchronous replication strategy between distributed medical databases. The contribution, named PGR, is an enhancement to the PostgreSQL database software that introduces lightweight asynchronous operations. In addition, we have implemented a multi-master engine with partial replication and hybrid fragmentation in order to allow interoperability between different telemedicine systems. Our early results indicate that the model and its implementation have reached a successful level in terms of performance and interoperability.
WebAnima is an interface agent specially designed to assist team members of a CSCW application during their daily work based on computers. In WebAnima, the intelligent behavior is guaranteed thanks to a conversational...
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ISBN:
(纸本)9781424416509
WebAnima is an interface agent specially designed to assist team members of a CSCW application during their daily work based on computers. In WebAnima, the intelligent behavior is guaranteed thanks to a conversational interface and ontologies that support semantic interpretation. We believe that embodied conversational assistants will improve the quality of assistance and increase collaboration between project members. In this paper, we present the embodied conversational assistant and its insertion into a multi-agent system designed for research and development projects. We describe the design of the agent, highlighting the role of ontologies for semantic interpretation and the dynamic behavior of the embodied animated agent.
This work presents a method that provides organizations and their project managers with a better understanding of the implications of the risks that software projects are subjected to. The method, which is based upon ...
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ISBN:
(纸本)9781424421916
This work presents a method that provides organizations and their project managers with a better understanding of the implications of the risks that software projects are subjected to. The method, which is based upon a novel approach to cluster analysis, generates a set of business rules indicating how risk factors may influence project performance. These rules are easy to read and understand, making it easier for managers to identify what needs to be done and when it needs to be done, before the worst happens.
Off shoring IT services has become a key factor in building successful business strategies, allowing companies to better position themselves in today's highly competitive markets. Nevertheless, off shoring brings ...
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ISBN:
(纸本)9781424421916
Off shoring IT services has become a key factor in building successful business strategies, allowing companies to better position themselves in today's highly competitive markets. Nevertheless, off shoring brings to the table a brand new set of possibilities and risks regarding its management and execution. This article presents a method for the elaboration of a quantitative risk model for off shoring IT applications, which, in turn, increases the likelihood of being successful in such initiatives.
This paper examines the formation of self-organizing feature maps (SOFM) by the direct optimization of a cost function through a genetic algorithm (GA). The resulting SOFM is expected to produce simultaneously a topol...
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This paper examines the formation of self-organizing feature maps (SOFM) by the direct optimization of a cost function through a genetic algorithm (GA). The resulting SOFM is expected to produce simultaneously a topologically correct mapping between input and output spaces and a low quantization error. The proposed approach adopts a cost (fitness) function which is a weighted combination of indices that measure these two aspects of the map quality, specifically, the quantization error and the Pearson correlation coefficient between the corresponding distances in input and output spaces. The resulting maps are compared with those generated by the Kohonen's self-organizing map (SOM) algorithm in terms of the quantization error (QE), the weighted topological error (WTE) and the Pearson correlation coefficient (PCC) indices. The experiments show the proposed approach produces better values of the quality indices as well as is more robust to outliers.
The requirements elicitation of a system is a complex task. The different viewpoints and the need for negotiation make this stage of the software development process risky and susceptible to failures. The traditional ...
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The analysis of emergency response actions usually concentrates on failures as a means to improve future procedures and emergency plans. In this paper we adopt a resilience approach that focuses on the analysis of suc...
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Knowledge Management has become a prominent subject for organizations, but often characterization and treatment of the information that flows in a well-defined design work process are muddled. We argue that context is...
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Many approaches to work analysis have been proposed so as to enhance the requirements elicitation for systems design. However, systems delivered at dynamic, complex and socio-technical workplaces, have stillfailed at ...
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