Find It - An Assistant Home Agent

Cognitive impaired population face with innumerable problems in their daily life. Surprisingly, they are not provided with any help to perform those tasks for which they have difficulties. As a consequence, it is necessary to develop systems that allow those people to live independently and autonomously. Living in a technological era, people could take advantage of the available technology, being provided with some solutions to their needs. This paper presents a platform that assists users with remembering where their possessions are. Mainly, an object recognition process together with an intelligent scheduling applications are integrated in an Ambient Assisted Living (AAL) environment.

Sistemas de comunicación por imagines para niños autistas en el comienzo de la trayectoria: análisis y re-diseño de un sistema

En la educación especial para autistas el método principal de la comunicación se hace con imágenes que hacen posible la comunicación entre profesores y alumnos. El gran problema de un niño autista es la enfermedad que afecta la comunicación del niño. A partir del analisis del sistema de comunicación vigente - Las cifras del Sistema de Comunicación (PEC) – se detectaron algunas inconsistencias en los símbolos utilizados, como son la falta de informidad y usabilidad visual. Así, este trabajo parte de la propuesta de cambiar, renovando el sistema. Nos proponemos a la creación de un conjunto de símbolos uniforme, coherente y convincente. Una vez que, desde el punto de vista del diseño y la ilustración, consideramos como esencial para la enseñanza del autista un establecimiento de determinada calidad en las imágenes e ilustraciones utilizadas en este universo. La investigación se centrará en el campo de la ilustración y el producto se sentará en el intento de reformular el sistema de comunicaciones implementada hoy en día, con el objetivo principal de hacer la comunicación fácil e inmediata entre los niños autistas, los profesores, padres y amigos. Es decir, buscamos la eficacia de comunicación entre el autista y los que los rodean.

As (re)configurações das demandas ao serviço social no âmbito dos serviços públicos de saúde

Este artigo estuda as demandas impostas ao fazer profissional dos assistentes sociais na esfera pública dos serviços de saúde, a partir da redefinição do papel do Estado nos anos 1990. Inicialmente, discorre sobre o caráter reducionista do Estado à luz da política neoliberal implementada pelo governo brasileiro. Depois, lança um olhar sobre as políticas de saúde nos anos 1980 para explicitar as repercussões nos serviços públicos de saúde nos anos 1990. Por último, delineia as configurações e reconfigurações das demandas dirigidas ao serviço social no âmbito dos serviços públicos de saúde e aponta para a necessidade de uma leitura atenta das determinações sociais, históricas, econômicas, políticas e culturais nas expressões da questão social na saúde e, especialmente, das limitações da intervenção profissional nos processos relacionados ao binômio saúdedoença, uma vez que estão atrelados aos processos societários em nível macro.

Percursos e identidades. A (re)construção da identidade profissional do docente de enfermagem: o olhar dos docentes

RESUMO: Considerando a identidade como um processo dinâmico de interacção social, afastando-nos da ideia de identidades pré-estabelecidas, ancoradas numa visão essencialista e, aproximando-nos de uma identidade profissional que se constrói através de sucessivas interacções, procurámos conhecer a identidade profissional do docente de enfermagem. Convictos de que o estudo da identidade pode oscilar entre um pólo individual e um estrutural, optámos pela dimensão biográfica como eixo estruturante deste trabalho. Efectuaram-se oito biografias a docentes integrados no conceito de perito com uma profissionalidade reflectida. Utilizámos ainda o focus group como método complementar. Constatámos que os actores deste estudo se sentem enfermeiros, embora a sua área de actuação seja a docência. Destacam a integração do ensino de enfermagem no ensino superior como determinante na mudança da sua representação social. Todos estes docentes se incluem nos grupos que apresentam um estatuto da identidade realizado ou outorgado. Das competências que devem estar presentes no docente de enfermagem, salientam-se a comunicação, actualização científica e relação, capazes de promover um ambiente que propicie as aprendizagens significativas, de internacionalização, de investigação, como um modelo de conduta a seguir, que participe na vida da organização e seja capaz de motivar o outro, mas sobretudo que seja um bom enfermeiro. ABSTRACT: Considering identity as a social dynamic integration process, departing from the concept of pre-established identities anchored in an essentialist vision, and approaching a professional identity built trough successive interaction, we aimed to know the professional identity of the nursing teacher. Believing that the identity study may oscillate between an individual and a structural pole, we have chosen the biographic dimension as the structural axis for this assignment. Eight biographies from teachers integrated in the expert with a reflective professional identity have been made. We have also used the focus group as a complementary method. We have seen that the actors of this study feel themselves as nurses although their working area is teaching. They point out the higher teaching of Nursing as a determinant in the change of their social representation. All of these teachers are included in the groups that present an identity status that has been fulfilled or attributed. From the skills that should be present in the nursing teacher, communication, scientific knowledge and relationship are indicated when these are able to provide significant learning, internationalization and research as a behaviour model to be followed regarding the life of the organization and that might incentive others, but above as a way to be a good nurse.

Wetting response of KrF laser ablated polyimide surfaces

The wettability of polyimide surfaces microstructured using KrF laser radiation at fluences above the material ablation threshold was studied by static contact angle measurements. The laser-treated surfaces present a morphology consisting of conical features whose dimensions and areal density depend on the fluence. The effect of these parameters on the surface apparent contact angle depends on the wetting regime. When wetting occurs in the homogeneous regime, the apparent contact angle of the treated surfaces increases with the radiation fluence because the cone dimensions increase. In contrast, when wetting occurs in the heterogeneous regime, the apparent contact angle increases with the radiation fluence because the average distance between cones increases. The apparent water contact angle of the laser-treated surfaces can reach values as high as 162 degrees, as compared to 75 degrees for virgin polyimide.

Agent Inferencing Meets the Semantic Web

We provide all agent; the capability to infer the relations (assertions) entailed by the rules that, describe the formal semantics of art RDFS knowledge-base. The proposed inferencing process formulates each semantic restriction as a rule implemented within a, SPARQL query statement. The process expands the original RDF graph into a fuller graph that. explicitly captures the rule's described semantics. The approach is currently being explored in order to support descriptions that follow the generic Semantic Web Rule Language. An experiment, using the Fire-Brigade domain, a small-scale knowledge-base, is adopted to illustrate the agent modeling method and the inferencing process.

A hybrid approach to multi-agent decision-making

In the aftermath of a large-scale disaster, agents' decisions derive from self-interested (e.g. survival), common-good (e.g. victims' rescue) and teamwork (e.g. fire extinction) motivations. However, current decision-theoretic models are either purely individual or purely collective and find it difficult to deal with motivational attitudes; on the other hand, mental-state based models find it difficult to deal with uncertainty. We propose a hybrid, CvI-JI, approach that combines: i) collective 'versus' individual (CvI) decisions, founded on the Markov decision process (MDP) quantitative evaluation of joint-actions, and ii)joint-intentions (JI) formulation of teamwork, founded on the belief-desire-intention (BDI) architecture of general mental-state based reasoning. The CvI-JI evaluation explores the performance's improvement

RFID together with multi-agent systems to control global value chains

Nowadays, the cooperative intelligent transport systems are part of a largest system. Transportations are modal operations integrated in logistics and, logistics is the main process of the supply chain management. The supply chain strategic management as a simultaneous local and global value chain is a collaborative/cooperative organization of stakeholders, many times in co-opetition, to perform a service to the customers respecting the time, place, price and quality levels. The transportation, like other logistics operations must add value, which is achieved in this case through compression lead times and order fulfillments. The complex supplier's network and the distribution channels must be efficient and the integral visibility (monitoring and tracing) of supply chain is a significant source of competitive advantage. Nowadays, the competition is not discussed between companies but among supply chains. This paper aims to evidence the current and emerging manufacturing and logistics system challenges as a new field of opportunities for the automation and control systems research community. Furthermore, the paper forecasts the use of radio frequency identification (RFID) technologies integrated into an information and communication technologies (ICT) framework based on distributed artificial intelligence (DAI) supported by a multi-agent system (MAS), as the most value advantage of supply chain management (SCM) in a cooperative intelligent logistics systems. Logistical platforms (production or distribution) as nodes of added value of supplying and distribution networks are proposed as critical points of the visibility of the inventory, where these technological needs are more evident.

Variation of magnetic properties in sedimentary rocks hosting the Foum Zguid dyke (southern Morocco): Combined effects of re-crystallization and Fe-metasomatism

The effects of dyke intrusion on the magnetic properties of host sedimentary rocks are still poorly understood. Therefore, we have evaluated bulk magnetic parameters of standard palaeomagnetic samples collected along several sections across the sediments hosting the Foum Zguid dyke in southern Morocco. The study has been completed with the evaluation of the magnetic fabric after laboratory application of sequential heating experiments. The present study shows that: (1) close to Fourn Zguid dykes, the variations of the bulk magnetic parameters and of the magnetic fabric is strongly related with re-crystallization and Fe-metasomatism intensity. (2) The thermal experiments on AMS of samples collected farther from the dyke and, thus, less affected by heating during dyke emplacement, indicate that 300-400 degrees C is the minimum experimental temperature necessary to trigger appreciable transformations of the pre-existing magnetic fabrics. For temperatures higher than ca. 580 degrees C, the magnetic fabric transformations are fully realized, with complete transposition of the initial fabric to a fabric similar to that of samples collected close to the dyke. Therefore, measured variations of the magnetic fabric can be used to evaluate re-crystallization temperatures experienced by the host sedimentary rock during dyke emplacement. The distinct magnetic behaviour observed along the cross-sections strongly suggests that samples collected farther from the dyke margins did not experience thermal episodes with temperatures higher than 300 degrees C after dyke emplacement. (3) AMS data shows a gradual variation of the magnetic fabric with distance from the dyke margin, from sub-horizontal K-3 away from the dyke to vertical K3 close to the dyke. Experimental heating shows that heat alone can be responsible for this strong variation. Therefore, such orientation changes should not be unequivocally interpreted as the result of a stress field (resulting from the emplacement of the dyke, for instance). (4) Magnetic studies prove to be a very sensitive tool to assess rock magnetic transformations, thermally and chemically induced by dyke intrusion in hosting sediments.

Complex fluids at complex surfaces simply complicated

We study wetting and filling of patterned surfaces by a nematic liquid crystal. We focus on three important classes of periodic surfaces: triangular, sinusoidal and rectangular. The results highlight the similarities and differences of nematic wetting of these surfaces and wetting by simple fluids. The interplay of geometry, surface and elastic energies can lead to the suppression of either filling or wetting. The periodic rectangular surface displays re-entrant transitions, with a sequence dry-filled-wet-filled, in the relevant region of parameter space.

DITRANS - a multi-agent system for integrated diagnosis of power transformers

This paper describes the development and the implementation of a multi-agent system for integrated diagnosis of power transformers. The system is divided in layers which contain a number of agents performing different functions. The social ability and cooperation between the agents lead to the final diagnosis and to other relevant conclusions through integrating various monitoring technologies, diagnostic methods and data sources, such as the dissolved gas analysis.

MASCEM improvement for agent based coalitions

This paper presents MASCEM - Multi-Agent Simulator for Electricity Markets improvement towards an enlarged model for Seller Agents coalitions. The simulator has been improved, both regarding its user interface and internal structure. The OOA, used as development platform, version was updated and the multi-agent model was adjusted for implementing and testing several negotiations regarding Seller agents’ coalitions. Seller coalitions are a very important subject regarding the increased relevance of Distributed Generation under liberalised electricity markets.

Filling and wetting transitions of nematic liquid crystals on sinusoidal substrates

Close to sinusoidal substrates, simple fluids may undergo a filling transition, in which the fluid passes from a dry to a filled state, where the interface remains unbent but bound to the substrate. Increasing the surface field, the interface unbinds and a wetting transition occurs. We show that this double-transition sequence may be strongly modified in the case of ordered fluids, such as nematic liquid crystals. Depending on the preferred orientation of the nematic molecules at the structured substrate and at the isotropic-nematic interface, the filling transition may not exist, and the fluid passes directly from a dry to a complete-wet state, with the interface far from the substrate. More interestingly, in other situations, the complete wetting transition may be prevented, and the fluid passes from a dry to a filled state, and remains in this configuration, with the interface always attached to the substrate, even for very large surface fields. Both transitions are observed only for a same substrate in a narrow range of amplitudes.