Active Game-Based Solutions for the Treatment of Childhood Obesity

[EN]Obesity is one of the biggest health problems globally that, together with sedentarism, requires solutions that increase the enthusiasm towards physical activity. Therefore, this paper describes two solutions based on active games using the Kinect sensor and biometric sensors, designed for the outpatient treatment of childhood obesity. The solutions were applied in an intervention program based on active video games and motor games, developed with children in treatment for childhood obesity. An ad hoc questionnaire was used to assess the level of satisfaction, fun, learning, and behavior changes in the children of the experimental group that developed the intervention. The results showed a high index of satisfaction with the intervention program, as well as with the games developed. It is concluded that active video games and group games are highly motivating and can promote behavior change towards healthier life habits in children

Robust Tracking of Bio-Inspired References for a Biped Robot Using Geometric Algebra and Sliding Mode Control

Controlling walking biped robots is a challenging problem due to its complex and uncertain dynamics. In order to tackle this, we propose a sliding mode controller based on a dynamic model which was obtained using the conformal geometric algebra approach (CGA). The CGA framework permits us to use lines, points, and other geometric entities, to obtain the Lagrange equations of the system. The references for the joints of the robot were bio-inspired in the kinematics of a walking human body. The first and second derivatives of the reference signal were obtained through an exact robust differentiator based on high order sliding mode. The performance of the proposed control schemes are illustrated through simulation.ITESO, A.C

Effects of a Gamified Educational Program in the Nutrition of Children with Obesity

[EN]Obesity is considered a global epidemic of the twenty-first century by the World Health Organization (WHO). Specifically, the Canary Islands has the highest level of this disease in Europe and 40% of children in Spain are overweight or obese. This increase is a direct result of changes in the lifestyles of the population and its nutrition. Because of this, we have designed an educational program based on motor games, active videogames and virtual learning environments to improve the long-term health of children. This article presents and analyzes the results of a study on the nutritional knowledge and adherence to the Mediterranean diet of 46 obese children aged 6 to 12 years in the Canary Islands who participated in an educational program. The study design was quasi-experimental, with two groups (experimental and control). A long-term longitudinal study (3 years) was carried out. A set of evaluation instruments was used for the different phases. The results show significant improvements between the experimental and control groups in terms of their knowledge of healthy nutrition and their adherence to the Mediterranean diet. As a main conclusion, we emphasize that a gamified educational intervention program supported by ICT helps to motivate and promote improvements in the nutrition of children

Ontologies in a Multi-Agent System for Automated Scheduling

Multi-Agent Systems (MAS) have been successfully used in a wide range of applications such as robotics and e-commerce, and in particular in planning and scheduling. The aim of this paper is to present the interesting features that the use of ontologies in MAS offers. As an example, the development of a MAS for automated planning and scheduling in a University Research Group Scenario is shown in this paper. In this scenario, researchers are frequently proposed to attend internal meetings about several subjects such as lessons planning or research evaluations. Scheduling and negotiating meeting details such as time and location becomes highly complicated as the number of intended attendees increases. Moreover, there are usually conflicts about the use of some common resources such as portable computers or projectors. As can be seen, the scheduling problem that the MAS solves is very easy. So having solved it is not what is important about this paper. In contrast, what is important is the potential which a scheduler can schedule for the items whose description, for example, is on the web, and can read on it (without knowing a~priori) the logic of how the scheduling can be done

Health Promotion for Childhood Obesity: An Approach Based on Self-Tracking of Data

[EN]At present, obesity and overweight are a global health epidemic. Traditional interventions for promoting healthy habits do not appear to be e ective. However, emerging technological solutions based on wearables and mobile devices can be useful in promoting healthy habits. These applications generate a considerable amount of tracked activity data. Consequently, our approach is based on the quantified-self model for recommending healthy activities. Gamification can also be used as a mechanism to enhance personalization, increasing user motivation. This paper describes the quantified-self model and its data sources, the activity recommender system, and the PROVITAO App user experience model. Furthermore, it presents the results of a gamified program applied for three years in children with obesity and the process of evaluating the quantified-self model with experts. Positive outcomes were obtained in children’s medical parameters and health habits

Robust Tracking of Bio-Inspired References for a Biped Robot Using Geometric Algebra and Sliding Modes

Controlling walking biped robots is a challenging problem due to its complex and uncertain dynamics. In order to tackle this, we propose a sliding mode controller based on a dynamic model which was obtained using the conformal geometric algebra approach (CGA). The CGA framework permits us to use lines, points, and other geometric entities, to obtain the Lagrange equations of the system. The references for the joints of the robot were bio-inspired in the kinematics of a walking human body. The first and second derivatives of the reference signal were obtained through an exact robust differentiator based on high order sliding modes. The performance of the proposed control scheme is illustrated through simulation.CINVESTA

The Bulgeless Seyfert/LINER Galaxy NGC 3367: Disk, Bar, Lopsidedness and Environment

NGC3367 is a nearby isolated active galaxy that shows a radio jet, a strong bar and evidence of lopsidedness. We present a quantitative analysis of the stellar and gaseous structure of the galaxy disk and a search for evidence of recent interaction based on new UBVRI Halpha and JHK images and on archival Halpha Fabry-Perot and HI VLA data. From a coupled 1D/2D GALFIT bulge/bar/disk decomposition an (B/D ~ 0.07-0.1) exponential pseudobulge is inferred in all the observed bands. A NIR estimate of the bar strength = 0.44 places NGC 3367 bar among the strongest ones. The asymmetry properties were studied using (1) optical and NIR CAS indexes (2) the stellar (NIR) and gaseous (Halpha, HI) A_1 Fourier mode amplitudes and (3) the HI integrated profile and HI mean intensity distribution. While the average stellar component shows asymmetry values close to the average found in the Local Universe for isolated galaxies, the young stellar component and gas values are largely decoupled showing significantly larger A_1 mode amplitudes suggesting that the gas has been recently perturbed. Our search for (1) faint stellar structures in the outer regions (up to u_R ~ 26 mag arcsec^{-2}), (2) (Halpha) star-forming satellite galaxies and (3) regions with different colors (stellar populations) along the disk all failed. Such an absence is interpreted using recent numerical simulations to constrain a tidal event with an LMC like galaxy to some dynamical times in the past or to a current very low mass, gas rich accretion. We conclude that a cold accretion mode (gas and small/dark galaxies) may be responsible of the nuclear activity and peculiar (young stars and gas) morphology regardless of the highly isolated environment. Black hole growth in bulgeless galaxies may be triggered by cosmic smooth mass accretion.Comment: 27 pages, 12 figures, accepted for publication in The Astronomical Journa

Simuladores de Jerarquía de Memoria en el Contexto de un Proceso de Investigación-Acción

Presentamos en esta ponencia dos simuladores para la docencia de la jerarquía de memoria en varias asignaturas, productos de un proceso de investigación-acción en el cual también se ha originado un mapa conceptual para una mejor coordinación a los profesores de las asignaturas involucradas. En el diseño de ambos simuladores se ha perseguido abarcar todos los conceptos de estudio sin perder la facilidad de uso ni el objetivo pedagógico

Historia de las algunas especialidades médicas en Pinar del Río (primera parte)

La investigación presenta un estudio del desarrollo de la especialidad de Medicina Interna en Pinar del Río. El objetivo propuesto fue valorar el desarrollo de las especialidades de Medicina Interna, Medicina General Integral y Gastroenterología en Pinar del Río. La metodología utilizada es la que plantea la Filosofía Marxista. Es una investigación novedosa por cuanto existe muy poca información sobre esta temática y ofrece valiosos elementos basados en la escasa literatura que existe del tema y en los testimonios de los propios protagonistas. Puede servir como material de consulta y para futuras investigaciones, teniendo en cuenta los resultados y conclusiones expresan que el desarrollo de médico en Pinar del Río fue el producto del propio incremento de la información científica, las necesidades de la población y una voluntad política que se hizo realidad con el triunfo de la Revolución