163 research outputs found

    Enhancing smart environments with mobile robots

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    Sensor networks are becoming popular nowadays in the development of smart environments. Heavily relying on static sensor and actuators, though, such environments usually lacks of versatility regarding the provided services and interaction capabilities. Here we present a framework for smart environments where a service robot is included within the sensor network acting as a mobile sensor and/or actuator. Our framework integrates on-the-shelf technologies to ensure its adaptability to a variety of sensor technologies and robotic software. Two pilot cases are presented as evaluation of our proposal.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    An assisted navigation method for telepresence robots

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    Telepresence robots have emerged as a new means of interaction in remote environments. However, the use of such robots is still limited due to safety and usability issues when operating in human-like environments. This work addresses these issues by enhancing the robot navigation through a collaborative control method that assists the user to negotiate obstacles. The method has been implemented in a commercial telepresence robot and a user study has been conducted in order to test the suitability of our approach.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Improvement of the sensory and autonomous capability of robots through olfaction: the IRO Project

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    Proyecto de Excelencia Junta de Andalucía TEP2012-530Olfaction is a valuable source of information about the environment that has not been su ciently exploited in mobile robotics yet. Certainly, odor information can contribute to other sensing modalities, e.g. vision, to successfully accomplish high-level robot activities, such as task planning or execution in human environments. This paper describes the developments carried out in the scope of the IRO project, which aims at making progress in this direction by investigating mechanisms that exploit odor information (usually coming in the form of the type of volatile and its concentration) in problems like object recognition and scene-activity understanding. A distinctive aspect of this research is the special attention paid to the role of semantics within the robot perception and decisionmaking processes. The results of the IRO project have improved the robot capabilities in terms of efciency, autonomy and usefulness.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

    Evaluation of Using Semi-Autonomy Features in Mobile Robotic Telepresence Systems

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    Mobile robotic telepresence systems used for social interaction scenarios require that users steer robots in a remote environment. As a consequence, a heavy workload can be put on users if they are unfamiliar with using robotic telepresence units. One way to lessen this workload is to automate certain operations performed during a telepresence session in order to assist remote drivers in navigating the robot in new environments. Such operations include autonomous robot localization and navigation to certain points in the home and automatic docking of the robot to the charging station. In this paper we describe the implementation of such autonomous features along with user evaluation study. The evaluation scenario is focused on the first experience on using the system by novice users. Importantly, that the scenario taken in this study assumed that participants have as little as possible prior information about the system. Four different use-cases were identified from the user behaviour analysis.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Plan Nacional de Investigación, proyecto DPI2011-25483

    La metodología triangular como factor clave para diagnosticar la comunicación organizacional interna.

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    La Comunicación Interna es una herramienta decisiva para mejorar la dirección y la adaptación a los cambios en el marco de los objetivos estratégicos de las organizaciones. En este sentido, diversos estudios han demostrado la influencia positiva de la comunicación interna sobre la satisfacción laboral y el rendimiento de los empleados (v.g., Chiang, Salazar y Nuñez, 2007; Herencia-Leva, 2003). El Observatorio de Comunicación Interna e Identidad Corporativa (2010) indica que este tipo de comunicación crece en importancia y profesionalidad, especialmente en organizaciones de servicios, tales como, instituciones hospitalarias. En estas organizaciones sus empleados son responsables de toma de decisiones continuas ante la presión de tiempo. Ello implica que, deben tener un amplio conocimiento de su entidad y del entorno que le rodea. En este contexto, la comunicación interna es pieza fundamental para integrar y alienar a las personas con los objetivos de su empresa (Welch, 2003). Sin embargo, son pocos los centros hospitalarios que cuentan con un plan de comunicación adecuado. En este sentido, la Agencia Sanitaria Costa del Sol (ASCS), ante un escenario de crecimiento, considera necesario la elaboración e implantación de un Plan de Comunicación Interna. En base a ello, los objetivos fundamentales de este trabajo han sido (a) realizar un diagnóstico de la situación de comunicación interna de la empresa, y; (b) diseñar un plan de comunicación interna en función de la información obtenida. En concreto, siguiendo a Paul (1996), se ha realizado un proceso de auditoría basado en dos tipos de técnicas metodológicas: la administración del Cuestionario de Auditoría de la Comunicación (Varona, 1991) a 603 empleados/as, como técnica cuantitativa, y la realización de dos grupos focales multidisciplinares, de 15 personas cada uno, como técnica cualitativa. Por un lado, los resultados del cuestionario indican las dimensiones que son principales fortalezas o debilidades de la comunicación interna. Por el otro, del uso de la Técnica de Grupo Nominal se desprenden las principales actuaciones que son necesarias poner en marcha para la mejora de la comunicación interna en ASCS.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Osteoarticular Expression of Musashi-1 in an Experimental Model of Arthritis

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    Background. Collagen-induced arthritis (CIA), a murine experimental disease model induced by immunization with type II collagen (CII), is used to evaluate novel therapeutic strategies for rheumatoid arthritis. Adult stem cell marker Musashi-1 (Msi1) plays an important role in regulating the maintenance and differentiation of stem/precursor cells. The objectives of this investigation were to perform a morphological study of the experimental CIA model, evaluate the effect of TNFα-blocker (etanercept) treatment, and determine the immunohistochemical expression of Msi1 protein. Methods. CIA was induced in 50 male DBA1/J mice for analyses of tissue and serum cytokine; clinical and morphological lesions in limbs; and immunohistochemical expression of Msi1. Results. Clinically, TNFα-blocker treatment attenuated CIA on day 32 after immunization (). Msi1 protein expression was significantly higher in joints damaged by CIA than in those with no lesions () and was related to the severity of the lesions (Spearman’s rho = 0.775, ). Conclusions. Treatment with etanercept attenuates osteoarticular lesions in the murine CIA model. Osteoarticular expression of Msi1 protein is increased in joints with CIA-induced lesion and absent in nonlesioned joints, suggesting that this protein is expressed when the lesion is produced in order to favor tissue repair.This investigation was partially supported by Research Group #CTS-138 (Junta de Andalucía, Spain)

    Conservation of the endemic dwarf carnivores of Cozumel Island, Mexico.

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    Cozumel Island, Mexico, harbours two endemic species of dwarf procyonids: the Pygmy Raccoon Procyon pygmaeus and the Dwarf Coati Nasua nelsoni. Both species are Critically Endangered, and are among the world&rsquo;s most threatened Carnivora. Here we summarise the research we have been conducting on their ecology, evolution, genetics, and conservation. We also summarise the conservation initiatives we have been undertaking and promoting in order to advance the conservation of these unique species and their habitats. This effort illustrates the importance of an interdisciplinary approach in conservation science and action in maximising effectiveness. Nevertheless, the precarious status of the species make it imperative to continue and expand the work we have carried out in Cozumel to prevent two imminent global extinctions.<br /

    El fenómeno del dopaje desde la perspectiva de las Ciencias Sociales Odile

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    En este libro se recoge una selección de las comunicaciones presentadas en el IV Congreso Internacional ‘Deporte, Dopaje y Sociedad’ que se celebró en Madrid del 26 de febrero al 1 de marzo de 2014 y que fue organizado conjuntamente por la Universidad Politécnica de Madrid y la Agencia Española de Protección de la Salud en el Deporte. Los textos están escritos en español, francés e inglés y abordan el estudio del fenómeno del dopaje desde el ámbito especifico de las Ciencias Humanas y Sociales a través de disciplinas como Historia, Derecho, Sociología, Psicología, Economía, Ciencias de la Información y otras disciplinas relacionadas

    The welfare of water buffaloes during the slaughter process: a review

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    This paper reviews the scientific literature on water buffalo welfare in all stages of the live animal supply chain from the farm gate to slaughter (loading/unloading, markets, transportation, handling, lairage, stunning and slaughter) with the objective of identifying risk factors and potential mitigation strategies. Although in some countries legislation exists to protect the welfare of farm animals during transport and killing, the handling practices used to load and unload buffaloes and move them in livestock markets and abattoirs are often harsh. This is frequently due to inadequate equipment designed principally for cattle, and the fact that water buffaloes are considered more temperamental than cattle. Additionally, more reactive animals have increased stress responses to handling, which can lead to more negative human interventions with increased numbers of skin lesions and bruises to the carcasses. During transport, buffaloes may suffer periods of thermal stress due to overstocking, inadequate ventilation and because in many tropical climates trips are made during the hottest time of the day. The anatomical and physiological characteristics of water buffalo make them particularly susceptible to thermal stress in the absence of water for wallowing. Although water buffaloes belong to the same Bovidae family as domestic cattle, certain anatomical features of the head make effective stunning very problematic. Buffaloes have extensive sinuses and frontal bones, meaning that the penetrating captive bolt devices recommended for cattle may prove ineffective in reliably inducing unconsciousness. There is a need for further development of procedures, stunning positions and appropriate devices to improve the efficiency of buffalo stunning. Finally, in many parts of the world where buffalo are routinely slaughtered in basic conditions without prior stunning. Slaughter without stunning can result in pain and stress associated with delays in the time to loss of consciousness, pain from the cutting of the neck and potential distress associated with aspiration of blood into the respiratory tract. Specific legislation, guidelines and handler/stockman/operator training programmes should be developed to improve the welfare of buffaloes during all ante mortem stages of loading, unloading, handling, stunning and slaughter

    Wage inequality, segregation by skill and the price of capital in an assignment model

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    Some pieces of empirical evidence suggest that in the U.S., over the last few decades, (i) wage inequality between-plants has risen much more than wage inequality within-plants and (ii) there has been an increase in the segregation of workers by skill into separate plants. This paper presents a frictionless assignment model in which these two features can be explained simultaneously as the result of the decline in the relative price of capital. Additional implications of the model regarding the skill premium and the dispersion in labor productivity across plants are also consistent with the empirical evidence. [resumen de autor
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