4,567 research outputs found
Motorized circular rail with RGB-D sensor on cart for physical rehabilitation
This paper introduces a motorized circular rail managing the movement of two carts equipped with an RGB-D sensor each. The proposal is aimed at continuously tracking a person who is undergoing a series of physical rehabilitation exercises from two different viewpoints to monitor if the exercises are being correctly conducted. More concretely, this work offers all details of the trajectory calculation for safe movement of both carts on the motorized circular rail. Then, two study cases are presented to show the efficiency of the control algorithms implemented.AEI - Agencia Estatal de Investigação(TIN2016-79100-R)This work was partially supported by Ministerio de Ciencia, Innovación y Universidades, Agencia Estatal de Investigación (AEI) / European Regional Development Fund (FEDER, UE) under DPI2016-80894-R and TIN2016-79100-R
grants
Influence of Tempo and Rhythmic Unit in Musical Emotion Regulation
This article is based on the assumption of musical power to change the listener's mood. The paper studies the outcome of two experiments on the regulation of emotional states in a series of participants who listen to different auditions. The present research focuses on note value, an important musical cue related to rhythm. The influence of two concepts linked to note value is analyzed separately and discussed together. The two musical cues under investigation are tempo and rhythmic unit. The participants are asked to label music fragments by using opposite meaningful words belonging to four semantic scales, namely “Tension” (ranging from Relaxing to Stressing), “Expressiveness” (Expressionless to Expressive), “Amusement” (Boring to Amusing) and “Attractiveness” (Pleasant to Unpleasant). The participants also have to indicate how much they feel certain basic emotions while listening to each music excerpt. The rated emotions are “Happiness,” “Surprise,” and “Sadness.” This study makes it possible to draw some interesting conclusions about the associations between note value and emotions
New inscriptions from Asido Caeserina
Los autores presentan tres nuevos epígrafes de la colonia Asido Caesarina, de difícil interpretación, aunque de notable singularidad, que vienen a enriquecer el ya amplio corpus epigráfico de la colonia.The authors present three new inscriptions from the colony Asido Caesarina, which are difficult to interpret, though of notable singularity. These inscriptions broaden the already wide epigraphic corpus of the colony
Genetic improvement and management of small populations
Ponencia publicada en ITEA, vol.104La gestión genética de poblaciones pequeñas, cualquiera que sea el objetivo perseguido, viene condicionada precisamente por su tamaño. Hoy en día, la distinción entre programas de conservación y programas de selección tiende a difuminarse ya que en ambos tipos de programas hay que prestar atención tanto al aumento de la consanguinidad como a la mejora o mantenimiento de algunos caracteres de interés. Para el mantenimiento de la diversidad el criterio que debe seguirse es el de maximizar el censo efectivo. Para ello durante las últimas décadas se han desarrollado unas reglas sencillas aunque también existe una solución sofisticada y al parecer óptima. En programas de selección existen también reglas sencillas y una solución óptima aunque en este caso la solución implica también la consideración del progreso genético deseado. El diseño de apareamientos óptimos, aunque es más complejo desde el punto de vista teórico, tiene también una respuesta práctica satisfactoria.The genetic management of small populations, irrespective of the objective pursued, it is conditioned by their census. Actually the distinction between conservation and selection programmes tends to vanish because in both types of programmes attention should be paid to the increase of inbreeding and to the maintenance or improvement of some traits of interest. To maintain genetic diversity the criterion to follow is to maximize the effective population size. For this purpose several simple rules have been developed during the last decades although there exist also a sophisticated solution, probably optimal. For selection programmes there are also simple rules and an optimal solution although now the desired genetic progress should be included. The design of optimal mating systems, although it presents more problems from a theoretical point of view, it has also a reasonable practical solution
Practical implementation of optimal management strategies in conservation programmes: a mate selection method
The maintenance of genetic diversity is, from a genetic point of view, a key objective of conservation programmes. The selection of individuals contributing offspring and the decision of the mating scheme are the steps on which managers can control genetic diversity, specially on ‘ex situ’ programmes. Previous studies have shown that the optimal management strategy is to look for the parents’ contributions that yield minimum group coancestry (overall probability of identity by descent in the population) and, then, to arrange mating couples following minimum pairwise coancestry. However, physiological constraints make it necessary to account for mating restrictions when deciding the contributions and, therefore, these should be implemented in a single step along with the mating plan. In the present paper, a single-step method is proposed to optimise the management of a conservation programme when restrictions on the mating scheme exist. The performance of the method is tested by computer simulation. The strategy turns out to be as efficient as the two-step method, regarding both the genetic diversity preserved and the fitness of the population
Aplicación práctica de estrategias de manejo óptimo en programas de conservación: un método de selección de apareamientos
The maintenance of genetic diversity is, from a genetic point of view, a key objective of conservation programmes. The selection of individuals contributing offspring and the decision of the mating scheme are the steps on which managers can control genetic diversity, specially on "ex situ" programmes. Previous studies have shown that the optimal management strategy is to look for the parents’ contributions that yield minimum group coancestry (overall probability of identity by descent in the population) and, then, to arrange mating couples following minimum pairwise coancestry. However, physiological constraints make it necessary to account for mating restrictions when deciding the contributions and, therefore, these should be implemented in a single step along with the mating plan. In the present paper, a single–step method is proposed to optimise the management of a conservation programme when restrictions on the mating scheme exist. The performance of the method is tested by computer simulation. The strategy turns out to be as efficient as the two–step method, regarding both the genetic diversity preserved and the fitness of the population.El mantenimiento de la diversidad genética es, desde un punto de vista genético, un objetivo fundamental en programas de conservación. La selección de los individuos que dejarán descendientes y la decisión del esquema de apareamiento son los pasos en los que el conservador puede controlar la evolución de la diversidad, especialmente en programas "ex situ ". Se ha demostrado que la estrategia óptima consiste en buscar las contribuciones de los reproductores que den el mínimo parentesco global (probabilidad de identidad por descendencia de la población) y, posteriormente, determinar las parejas utilizando el método de apareamientos de mínimo parentesco. Sin embargo limitaciones fisiológicas y reproductivas pueden impedir que los apareamientos propuestos se lleven a cabo. Por esta razón, sugerimos la aplicación de un procedimiento que decida las contribuciones y el diseño de apareamientos en un solo paso. Mediante simulación con ordenador comparamos la eficiencia de dicho método frente al diseño óptimo en dos etapas. El procedimiento resultó ser tan eficiente como el método en dos pasos, tanto en el mantenimiento de variabilidad genética como en los niveles de eficacia biológica de la población
Calcificaciones discales idiopáticas en la infancia: A propósito de un caso
Las calcificaciones discales en la infancia constituyen una rara entidad; frecuentemente son asintomáticas, pero en ocasiones producen síntomas como cervicalgia o dorsalgia. El pronóstico suele ser bueno en casi todos los pacientes. Presentamos el caso de un niño de 11 años de edad, que consultó por dolor en región dorsal, fiebre y una velocidad de sedimentación globular elevada. La radiología nos mostró la presencia de 2 calcificaciones discales en el segmento torácico. Tras una semana de tratamiento conservador, se produce una completa resolución del cuadro clínico, persistiendo las calcificaciones discales.Invertebral disc calcification in childhood is rare. Most frequently are not symptomatic, but occasionally evoke symptoms like neck pain or back pain. The prognosis of nearly all patients is good. We report on a 11-year-old child, who suffered from acute back pain, fever and elevated erythrocyte sedimentation rates. The X-Ray revealed two calcified discs in the thoracic region. After one week of conservative treatment, a complete resolution of the symptoms is observed, however the radiologic findings showed the persistence of invertebral disc calcifications
Gain-Reconfigurable Hybrid Metal-Graphene Printed Yagi Antenna for Energy Harvesting Applications
This paper presents a hybrid metal-graphene printed Yagi antenna with reconfigurable gain that operates in the 5.5-GHz band. The balun and the driven elements are made of copper, while the directors are made of graphene. The graphene acts as a tunable material in the design. By switching the conductivity of the graphene, it is achieved a similar effect to adding or subtracting directors in the antenna. Hence the gain of the printed Yagi can be easily controlled. This could be of special interest in RF energy harvesting in the design of reconfigurable harvesting elements.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
MODELO CONCEPTUAL DE UNA PLATAFORMA DIGITAL PARA LA APROBACIÓN DE PROYECTOS DE COLABORACIÓN INTERNACIONAL
Increasing efficacy and efficiency of processes in the Mincex Collaboration Department “Cuba Recibe”, means a key objective for the organization. Digitization of these processes results in a viable and necessary initiative for taking better advantage of funds and resources enabled to national entities during the development of international cooperation projects. Digital platforms are a way for exchanging and collaboration between stakeholders and facilitate the orchestration of interactions between public administration entities and with another surrounding ecosystem. In this paper, a conceptual model of a digital platform for the international collaboration activity is presented, as well as the requirement for its design. The main model´s layers or components are also described for the cooperation project approval process.La elevación de la eficacia y eficiencia en los procesos que tienen lugar en la Dirección de Colaboración “Cuba Recibe” del Mincex, representa un objetivo clave para la organización. La informatización de estos procesos resulta una iniciativa viable y necesaria para alcanzar un mejor aprovechamiento de los fondos, así como de los recursos puestos a disposición de entidades cubanas durante el desarrollo de proyectos de cooperación internacional. Las plataformas digitales constituyen una vía para el intercambio y la colaboración entre los actores, y facilitan la orquestación de las interacciones que tienen lugar entre entidades de la administración pública y con el ecosistema circundante. En este artículo se presenta un modelo conceptual de plataforma digital para la actividad de colaboración internacional y los requerimientos para su diseño. Se detallan también los componentes o capas del modelo en el ámbito del proceso de aprobación de proyectos de cooperación internacional
Liquid-gas separation in colloidal electrolytes
The liquid-gas transition of an electroneutral mixture of oppositely charged colloids, studied by
Monte Carlo simulations, is found in the low-temperature–low-density region. The critical
temperature shows a nonmonotonous behavior as a function of the interaction range, −1, with a
maximum at 10, implying an island of coexistence in the - plane. The system is arranged in
such a way that each particle is surrounded by shells of particles with alternating charge. In contrast
with the electrolyte primitive model, both neutral and charged clusters are obtained in the vapor
phase
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