A MPC Strategy for the Optimal Management of Microgrids Based on Evolutionary Optimization

In this paper, a novel model predictive control strategy, with a 24-h prediction horizon, is proposed to reduce the operational cost of microgrids. To overcome the complexity of the optimization problems arising from the operation of the microgrid at each step, an adaptive evolutionary strategy with a satisfactory trade-off between exploration and exploitation capabilities was added to the model predictive control. The proposed strategy was evaluated using a representative microgrid that includes a wind turbine, a photovoltaic plant, a microturbine, a diesel engine, and an energy storage system. The achieved results demonstrate the validity of the proposed approach, outperforming a global scheduling planner-based on a genetic algorithm by 14.2% in terms of operational cost. In addition, the proposed approach also better manages the use of the energy storage system.Ministerio de Economía y Competitividad DPI2016-75294-C2-2-RUnión Europea (Programa Horizonte 2020) 76409

Factores de riesgo de cáncer de mama. Estudio de casos y controles, Instituto Superior de Ciencias Médicas “Carlos J. Finlay”, Policlínico Comunitario “Rodolfo Ramírez Esquivel”, Camagüey, Cuba

Antecedentes: conocer los factores de riesgo de cáncer de mama por parte de la familia y la comunidad, permite orientar medidas preventivas para una mejor calidad de vida en la mujer. Material y método: estudio de casos y controles para identificar factores de riesgo de cáncer de mama en la ciudad de Camagüey. Los casos fueron 17 mujeres de las edades entre 40 y 81 años, con diagnóstico de cáncer de mama y los controles, 30 mujeres apareadas por edad. En ambos grupos se valoraron los antecedentes personales de enfermedad de la mama, antecedentes familiares de cáncer de mama, obesidad, edad de la menarquia, edad de las primeras relaciones sexuales, número de partos, lactancia a sus hijos, número de abortos; ingesta habitual de alimentos ricos en grasas, carnes rojas, mortadela y remolacha; así como ser fumadora activa y/o pasiva. El análisis estadístico fue por el método de tablas simples de contingencias para ver la fuerza de asociación. Resultados: el tabaquismo presentó una Odds ratio (OR) de 9,80 con un intervalo de confianza del 95% de 1,89; 50, 69 y valor de p < 0, 05; seguido de los antecedentes personales de enfermedad de la mama con una OR de 6,60; IC 95% 1, 76; 24,7 y valor p < 0,05. La lactancia materna mostró una OR de 0,06, IC 95% 0,01- 0,29 y valor p<0,05. Conclusiones: el tabaquismo y enfermedad benigna de la mama constituyen factores de riesgo de cáncer de mama; mientras que amamantar se comporta como factor protector

Structural, dynamic, and electronic properties of liquid tin: An ab initio molecular dynamics study

Producción CientíficaWe report on a study of several structural, dynamic, and electronic properties of liquid Sn at a thermodynamic state close to the triple point (573 K) and another one at a higher temperature (1273 K). This study has been performed by ab initio molecular dynamics simulations using 205 atoms and around 20 ps of simulation time. The calculated static structures show a good agreement with the available experimental data. The dynamic structure factors fairly agree with their experimental counterparts obtained by inelastic x-ray scattering experiments, which display inelastic side peaks. The calculated dispersion relations exhibit a positive dispersion, although not so marked as suggested by the experiment; moreover, its slope at the long-wavelength limit compares favorably with the experimental sound velocity. Electron densities near selected triplets of atoms are similar to those appearing in the solid phases, but these features have an extremely short lifetime, so they should not be considered as solid remnants in the melt

Mistletoe generates non-trophic and trait-mediated indirect interactions through a shared host of herbivore consumers

Indirect interactions emerge among a wide range of herbivores sharing the same plant resource. Consumers usually belong to different trophic guilds, from folivores and sapsuckers to parasitic plants. We propose that mistletoes parasitizing pines could play a key role acting as herbivores on host pines and coming indirectly into competition with other herbivores feeding on the same host. Changes caused by mistletoes on its host have been well studied, but its effects running across trophic webs remain unrevealed. In this study, we investigate the effect of European mistletoe (Viscum album subsp. austriacum) on the host-feeding herbivores via trait-mediated indirect interactions (TMIIs) across their shared pine host (Pinus nigra subsp. salzmannii). We performed field and laboratory experiments, and analyzed the net effect of different mistletoe parasite loads on three host-phytophagous species: the sapsucker Cinara pini (Aphididae), the winter folivore Thaumetopoea pityocampa (Thaumetopoeidae), and the summer folivore Brachyderes sp. (Curculionidae), all being members of different functional feeding groups (FFGs). We summarize the mistletoe–host–herbivore interactions by means of a TMII, where mistletoe parasitism causes non-trophic links and detrimental indirect interactions on pine-feeding herbivores across its shared host, suggesting a worsening of host quality as food. These indirect interactions vary according to three parameters. First, the intensity has a non-proportional relation with parasite load, showing an impact threshold on highly parasitized pines. Second, the movement capacity of insect herbivores determines their response, by decreasing the abundance of herbivores with low movement ability (aphids and pine processionary caterpillars) while altering the behavior (plant selection) of more mobile herbivores (pine weevils). Finally, FFG determines the intensity of mistletoe parasitism effects, folivores being more responsive than sapsuckers. Overall, mistletoe generates non-trophic interaction linkages in the forest able to modify community structure by becoming a nexus of the entire herbivore community of the pine canopy.This study was supported by project CLAVINOVA CGL2011-29910 to Regino Zamora from the Spanish Ministry of Science and Innovation, and FPI predoctoral grant BES-2012-057125 to Alba Lázaro- González from the Spanish Ministry of Economy and Competitiveness

Implications of mistletoe parasitism for the host metabolome: A new plant identity in the forest canopy

Catalan Government, Grant/Award Number: SGR 2017-1005; European Research Council Synergy, Grant/Award Number: IMBALANCE-P ERC-2013-SyG-610028; Ministerio de Ciencia e Innovacion, Grant/Award Numbers: CLAVINOVA CGL2011-29910, ELEMENTALSHIFT PID2019-110521GB-I00; Ministerstvo Skolstvi, Mladeze a Te. lovychovy, Grant/Award Number: SustES CZ.02.1.01/0.0/0.0/16_019/0000797; Secretaria de Estado de Investigaci ~on, Desarrollo e Innovaci~on, Grant/Award Number: BES-2012-057125Mistletoe–host systems exemplify an intimate and chronic relationship where mistletoes represent protracted stress for hosts, causing long-lasting impact. Although host changes in morphological and reproductive traits due to parasitism are well known, shifts in their physiological system, altering metabolite concentrations, are less known due to the difficulty of quantification. Here, we use ecometabolomic techniques in the plant–plant interaction, comparing the complete metabolome of the leaves from mistletoe (Viscum album) and needles from their host (Pinus nigra), both parasitized and unparasitized, to elucidate host responses to plant parasitism. Our results show that mistletoe acquires metabolites basically from the primary metabolism of its host and synthesizes its own defence compounds. In response to mistletoe parasitism, pines modify a quarter of their metabolome over the year, making the pine canopy metabolome more homogeneous by reducing the seasonal shifts in topdown stratification. Overall, host pines increase antioxidant metabolites, suggesting oxidative stress, and also increase part of the metabolites required by mistletoe, which act as a permanent sink of host resources. In conclusion, by exerting biotic stress and thereby causing permanent systemic change, mistletoe parasitism generates a new host-plant metabolic identity available in forest canopy, which could have notable ecological consequences in the forest ecosystem.Catalan Government SGR 2017-1005European Research Council Synergy IMBALANCE-P ERC-2013-SyG-610028Instituto de Salud Carlos III Spanish Government European Commission CLAVINOVA CGL2011-29910ELEMENTALSHIFT PID2019-110521GB-I00Ministerstvo Skolstvi, Mladeze a Telovychovy SustES CZ.02.1.01/0.0/0.0/16_019/0000797Secretaria de Estado de Investigacion, Desarrollo e Innovacion BES-2012-05712

Herramienta para gestionar los modelos abiertos de los estudiantes que permite la evaluación de los niveles de comunicación entre ellos

El objetivo del trabajo, es proveer a profesores y estudiantes de una herramienta llamada NetAn@lisis, que proporciona una representación gráfica de diagramas estructurales, tanto del modelo de estudiante como de grupo de estudiantes. A través de NetAn@lisis el profesor/estudiante tendrá una visión global y particular del conocimiento y la progresión del estudiante durante la realización de actividades en grupo. La aplicación permite supervisar y modelar en tiempo real la formación del grupo en situaciones en las que se utilizan entornos virtuales de aprendizaje (EVA), en este caso Moodle. Desde un punto de vista práctico NetAn@lisis servirá para que el profesor observe el progreso evolutivo de los estudiantes y así pueda evaluarlos, identificar problemas generales del grupo, obtener modelos de grupos, construir futuras actividades, organizar grupos de trabajo, entre otros. Estos modelos tantos los individuales como los de grupo podrán ser observados por los estudian-tes, con el objetivo de reflexionar sobre su aprendizaje en grupo y por el profesor para poder inferir en la toma de decisiones con el objetivo de lograr conformar un grupo ideal.The target of this work is to supply teachers and students with a tool called Netan@lisis that provides a graphical display representation of structural diagrams for a student or a group of students. Through Netan@lisis the teacher/student will have a general and specific idea of the development of group activities. Applying Netan@lisis will allow to supervise and shape within and real time the formation of the group in situation when visual environment of learning are used, in this case; Moodle. From a practical point of view Netan@lisis will help the professor to observe the evolution process of the students and this way can evaluate them, identify general problems of the group, get some group patterns, build future activities and organize work groups. These models, the individual and the group ones, could be observed by the students with the objec-tive to think over their group learning and by the teacher to be able to take decisions aimed to create an ideal group

Plan de Mercadeo para un Retail Enfocado en Productos y Servicios para la Mujer

Women Market nace de la inspiración femenina, para brindar una nueva experiencia a la hora de hacer compras en un supermercado, satisfaciendo más de una necesidad en un solo lugar. Debido a esto, se ha decidido crear un formato de supermercado en donde este género se sienta representado, brindándole comodidad, ahorrándole tiempo y esfuerzo, por medio de servicios complementarios, convirtiendo su proceso de compra en un espacio donde pueda satisfacer más de una necesidad

Propidium Monoazide Integrated with qPCR Enables the Detection and Enumeration of Infectious Enteric RNA and DNA Viruses in Clam and Fermented Sausages

The increase of foodborne viral outbreaks highlights the need for a rapid and sensitive method for the prediction of viral infectivity in food samples. This study assesses the use of propidium monoazide (PMA) coupled with real-time PCR methods (RT-qPCR or qPCR for RNA or DNA viruses, respectively) in the determination of viral infectivity in complex animal-related food matrices. Clam and Spanish fermented sausage (“chorizo”) samples were spiked with infectious and heat-inactivated human adenovirus-2 (HAdV-2) and mengovirus (vMC0). PMA-qPCR/RT-qPCR discriminated infective virus particles, with significant reductions (>2.7 log10 or 99.7%). Additionally, infectious HAdV-2 and vMC0 were quantified by plaque assay (in plaque forming units, PFU), and compared with those in virus genomes copies (GCs) quantified by PMA-qPCR/RT-qPCR. A consistent correlation (R2 > 0.92) was showed between PFU and GCs along serial 10-fold dilutions in both DNA and RNA virus and in both food matrices. This study shows the use of PMA coupled to qPCR/RT-qPCR as a promising alternative for prediction of viral infectivity in food samples in comparison to more expensive and time-consuming methods and for those viruses that are not able to grow under available cell culture techniques.ThisstudywasfinanciallysupportedbytheRTA2014-00024- C04-01 fromtheSpanishMinistryofEconomyandInnovation and theBrazilianCNPqProjectnumber472804/2013-8,andby CAPES/PNPD andCAPES/PDSE

Reflexiones acerca prevalencia de la hipertensión arterial esencial y los efectos del ejercicio físico con fines profilácticos y terapéuticos

"Currently, there is sufficient evidence that a regular exercise program reduces blood pressure by about 10 mm Hg. This is considered a significant reduction of blood pressure in the therapeutic area, greatly favored when compared to medical treatments because of its lack of side effects, in addition to the fact that it presupposes healthy lifestyle habits, increased quality of life and sustainable development, based on the low material and monetary cost required for its implementation and monitoring”.“En la actualidad hay pruebas suficientes que un programa de ejercicios regulares reduce en unos 10 mm Hg. la tensión arterial, considerada como una reducción significativa de tensión arterial en el ámbito terapéutico, favorecida grandemente al compararlo con los tratamientos médicos por su carencia de efectos secundarios, además de que presuponen hábitos saludables de vida, aumento de la calidad de vida y un desarrollo sostenible, basado en el bajo costo material y monetario que requieren para su puesta en práctica y seguimiento”

Resumen de la tarea Rest-Mex en IberLEF 2022: Sistema de Recomendación, Análisis de Sentimiento y Predicción de Semáforo Covid para Textos Turísticos Mexicanos

This paper presents the framework and results from the Rest-Mex task at IberLEF 2022. This task considered three tracks: Recommendation System, Sentiment Analysis and Covid Semaphore Prediction, using texts from Mexican touristic places. The Recommendation System task consists in predicting the degree of satisfaction that a tourist may have when recommending a destination of Nayarit, Mexico, based on places visited by the tourists and their opinions. On the other hand, the Sentiment Analysis task predicts the polarity of an opinion issued and the attraction by a tourist who traveled to the most representative places in Mexico. We have built corpora for both tasks considering Spanish opinions from the TripAdvisor website. As a novelty, the Covid Semaphore Prediction task aims to predict the color of the Mexican Semaphore for each state, according to the Covid news in the state, using data from the Mexican Ministry of Health. This paper compares and discusses the participants’ results for all three tacks.Este artículo presenta el marco y los resultados de la tarea Rest-Mex en IberLEF 2022. Esta tarea consideró tres sub tareas: Sistema de recomendación, Análisis de sentimiento y Predicción de semáforo Covid, utilizando textos de lugares turísticos mexicanos. La tarea del Sistema de Recomendación consiste en predecir el grado de satisfacción que puede tener un turista al recomendar un destino de Nayarit, México, con base en los lugares visitados por los turistas y sus opiniones. Por otro lado, la tarea de Análisis de Sentimiento predice la polaridad de una opinión emitida y la atracción por parte de un turista que viajó a los lugares más representativos de México. Hemos construido corpus para ambas tareas teniendo en cuenta las opiniones en español de TripAdvisor. Como novedad, la tarea de Predicción de Semáforo Covid tiene como objetivo predecir el color del Semáforo Mexicano para cada estado, de acuerdo a las noticias Covid en el estado, utilizando datos de la Secretaría de Salud de México. Este documento compara y discute los resultados de los participantes para las tres sub tareas