Modelling vessel fleet composition for maintenance operations at offshore wind farms

Chartering a vessel fleet to support maintenance operations at offshore wind farms (OWF's) constitutes one of the major costs of maintaining this type of installations. Literature describes deterministic optimization models based on complete information within scenarios to schedule the maintenance and support decisions on the vessel fleet composition. The operations to be carried out can be classified as preventive and corrective tasks. The first type aims at reducing the likelihood of breakdowns and to prolong the life of turbine components. Corrective tasks are needed to repair breakdowns in turbines when they occur. Our research question is how to generate a vessel fleet composition, where the evaluation is based on scheduling without complete information. Such a model is a bi-level decision problem. On the first (tactical) level, decisions are made on the fleet composition for a certain time horizon. On the second (operational) level, the fleet is used to schedule the operations needed at the OWF, given random events of failures and weather conditions. A scenario based approach allows evaluation by parallel operational scheduling for each scenario..Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Spanish Ministry (TIN2015-66680

The mediating role of negative affect on the relationship between emotional intelligence abilities and aggressive behavior levels

The aim of the present research aimed to study the mechanisms underlying the relationship between aggressive behaviour and individual levels of ability emotional intelligence (EI). We particularly focused on the mediator role of negative affect explaining this relationship. Three hundred and ninety-five participants took part in the study. Participants were assessed on ability EI (by the Mayer-Salovey-Caruso Emotional Intelligence Test), aggression (Buss-Perry Aggression questionnaire), and negative affect (the Positive and Negative Affect Schedule). Path analyses were used to explore which branches of the ability EI are directly related to the four aggression dimensions (physical aggression, verbal aggression, anger and hostility) and indirectly related via negative affect. The results revealed a negative relationship between ability EI and aggression, but this relationship was a function of multiple factors such as the performance level in each of the ability EI branches, the type of aggression studied, the mediator effect of NA, and gender. The emotional managing branch showed a direct effect on aggression, specifically this branch was directly related to physical, verbal, and hostility aggression. Moreover, the emotional perception branch was indirectly related to the four aggression dimensions (physical, verbal, anger, and hostility) through negative affect acting as mediator. The direction of these relationships was always negative, that is, greater ability EI was associated with lower levels of aggression, highlighting the strength of the association with physical aggression. Finally, results also showed interesting gender differences. Women possess greater EI abilities, higher levels of negative affect, less aggressive behaviour, and a lower relationship between negative affect and aggression compared with men. This research offers a better understanding of the psychological processes explaining aggression.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Relación de Enique Díez-Canedo con los críticos contemporáneos

Enrique Díez-Canedo (1879-1944) ejerce como crítico profesional, en España, desde los primeros años del siglo xx hasta que estalla la guerra civil en 1936. Su labor en este campo es múltiple, tanto por los géneros y temas de los que se ocupa como por la multiplicidad de publicaciones en las que colabora: «El Sol», «La Lectura», «La Pluma», «España», «La Nación» de Buenos Aires, «La Voz», «Tierra Firme», Revista de Occidente». Todas publicaciones periódicas: diarios y revistas. Significa esto que Díez-Canedo hizo crítica periodística con las excelencias y limitaciones que conlleva porque, si bien el periódico tiene más poder de penetración y un mayor número de lectores, sobre todo de lectores no especializados, también impone al crítico limitaciones principalmente de extensión

Antología consultada de la poesía leonesa

Intentamos hacer una Antología Consultada de la poesía leonesa. Por consiguiente, las explicaciones históricas serán mínimas, sólo las estrictamente necesarias para encajar en el puesto privilegiado, que le corresponde, a la poesía leonesa de hoy. ¿Por qué hablamos de puesto privilegiado?. Porque, salvo contadas excepciones, todos los Manuales e Historias de la Literatura española al sistematizar la poesía española de posguerra contraponen la poesía fría y formalista que se hacía en Madrid a otra incisiva, aguda y comprometida que se hizo en León y a partir de esta contraposición nace la evolución de la poesía española hacia nuevas formas en las que serán motores y maestros, en cierto sentido, los poetas leoneses. Por tanto, hablar de poesía leonesa, es hablar indirectamente de la renovación de la poesía española después de la miseria ideológica y cultural en que ésta quedó sumida por causa de la Guerra Civil

Santa Teresa. Contenido e historia de una aportación

Teresa de Jesús murió en Alba de Tormes en 1582. A la monja andariega le llegó su hora en uno de los múltiples viajes que realizó a lo largo y ancho de la geografía española, más bien de la geografía de la Castilla de entonces.En vísperas de 1982 el mundo intelectual se revolucionó. Estábamos en el pórtico del IV Centenario de la muerte de Santa Teresa y numerosos especialistas y eruditos en el tema teresiano se lanzaron a crear el clima y la tensión necesaria para despertar el interés y para que el Centenario fuese un magno acontecimiento para la Cultura española. Ejemplos de estos aldabonazos públicos pueden ser los artículos de Bel Carrasco, Reyes Mate, César Lumbreras, Teófanes Egido, Secundino Castro, José Jiménez Lozano y Víctor García de la Concha que no limitó al periódico su actividad inicial sino que pronunció en la Fundación Juan March un ciclo de conferencias sobre el Arte literario y la reforma en Santa Teresa.El bullicio de los prolegómenos en 1981 hacía pensar que 1982 sería un año de ajetreos, que en todo tipo de cenáculos, círculos y ambientes ligados con la espiritualidad y con la Literatura se comentaría y se hablaría de Santa Teresa.Un profesor de Literatura no debería vivir de espaldas al acontecimiento, pero como uno no tenía las ideas demasiado claras porque encontraba acerca de la obra de Teresa de Jesús juicios de valor, a veces desprovistos de todo significado conceptual y a veces contradictorios y casi siempre huecos, se decidió a escribir unos folios —que adjunto— en los que sintetizaba, con absoluta independencia de criterio sus inquietudes y vacilaciones sobre el tema.Así escribíamos por aquellas fechas que teníamos serias dudas acerca del interés objetivo de la obra de Santa Teresa para una Historia de la Literatura española y para ayudarnos a disiparlas, en un sentido o en otro, hicimos indagaciones entre estudiantes universitarios acerca de su forma de pensar sobre el asunto. El resultado fue que la duda es más frecuente, más universal de lo que en principio parece

Simulation of a biorefinery process as learning tool in chemical engineering degree

Currently, the search for alternative biomass to be used as renewable sources for energy production is one of the most important challenges to achieve a sustainable growth based on a bioeconomy strategy (Mendes et al., 2009). In this context, lignocellulosic waste are a renewable, clean, inexpensive and with high availability for the manufacture of biofuels. In this sense, the main objective of this study was the simulation and design of engineering processes that allows the valorization of lignocellulosic waste and the obtaining of biofuels as alternative to fossil fuels. This goal implies the practical application of the theoretical knowledge acquired by the student during the chemical engineering degree. Specifically, the students designed and simulated a biorefinery process that consisted of a Kraft pulping process as starting point of two main lines of production: (1) Process I: production of bioethanol and (2) Process II: direct and indirect production of dimethylether (DME), both from lignocellulosic biomass (Fig.1). Two commercial simulation packages, ASPEN HYSYS® and UNISIM were used to simulate the production of dimethylether and bioethanol, respectively. The first step was determining a strategic situation for the installation of the biorefinery. The central area of Andalusia (between the municipalities of Lucena and Antequera) was considered the most adequate area to develop the installation of the biorefinery plant after evaluating the biomass available inside of 100 kms of distance around this place. Specifically, different biomass mixtures were considered in order to ensure the viability of a constant inlet flow of biomass in the biorefinery. In function of this inlet flow of biomass, the installations were designed and dimensioned in each stage of the process. The student carried out a wide revision of state of the art to decide the most adequate processes among different alternatives to obtain dimethylether and bioethanol. The different stages selected as the most adequate in each line of the process can be observed in Fig.1. Moreover, the students evaluated the different alternatives for the valorisation and optimization of the by-products generated in each stage of the process in order to minimize the consuming of chemical compounds and energy requirements. Therefore, the students learnt to develop a real engineering process more sustainable and friendly with the environment. To sum up, the used of programs to simulate the transformation of lignocellulosic biomass in biofuels, such as, bioethanol or dimethylether, which is a process with several social, environmental and economic advantages, was an interesting learning tool for students of chemical engineering degree. Keywords Bioethanol, design, dimethylether, Kraft pulping process, simulations. References Mendes, C.V.T., Carvalho, M.G.V.S., Baptista, C.M.S.G., Rocha, J.M.S., Soares, B.I.G., Sousa, G.D.A., 2009. Valorisation of hardwood hemicelluloses in the kraft pulping process by using an integrated biorefinery concept. Food Bioproduct Process 87:197–207.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech MINECO: Proyecto CTQ2015-68654-

Implementaciones paralelas para un problema de control de inventarios de productos perecederos

En este trabajo se analizan y eval uan dos implementaciones de un algoritmo de optimizaci on para un problema de control de inventarios de productos perecederos. Las implementaciones se han llevado a cabo utilizando una arquitectura heterog enea donde cada nodo est a compuesto por varios multicores y varias GPUs. Las versiones paralelas que se han desarrollado son: (1) una versi on MPI-PTHREADS en la que se extrae el paralelismo tanto a nivel de proceso MPI como a nivel de hilo y (2) una versi on multiGPU en la que se obtiene el paralelismo a nivel de proceso MPI y a nivel de cores de GPU. Este algoritmo puede ser descompuesto f acilmente en un conjunto de tareas que no presentan ninguna dependencia entre s . Sin embargo, la carga computacional asociada a cada una de las tareas es diferente y el problema del reparto de las tareas entre los elementos de proceso se puede modelar como un problema de Bin Packing. Ello implica que la selecci on del conjunto de tareas asociadas a cada una de las unidades de computaci on requiere del dise~no de heur sticas que sean capaces de balancear la carga e cientemente y de forma est atica. En este trabajo hemos analizado y evaluado varias heur sticas. Finalmente, la mejor heur stica ha sido la utilizada en la implementaci on paralela del algoritmo de control de inventarios que ha sido evaluado en la versi on MPI-PTHREADS y en la versi on multi- GPU. Para la implementaci on MPI-PTHREADS los resultados obtenidos muestran una buena escalabilidad mientras que las versi on MultiGPU para el ejemplo que se ha evaluado deja de ser e ciente cuando se usan mas de 2 GPUs.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Automatic Intent-based Classification of Citizen–toGovernment Tweets

Social networking technologies offer opportunities for governments to engage with citizens. However, the inability to filter relevant citizens' messages out of the vast amount of available social media content lessens their impact. In this paper, we propose a set of categories encapsulating the different citizens' intents when directing messages to public institutions, e.g., complaining, making requests, and proposing solutions to existing problems. We present a novel artificial intelligence approach, built upon natural language processing and machine learning algorithms, that enables the categorisation of citizens' messages into such intents automatically, and at scale. Through an empirical evaluation on a Twitter dataset, we show the effectiveness of our approach in terms of categorisation performance. We also discuss the value of the presented solution, as a novel tool for governments to achieve a more effective and informed communication with citizensThis work was conducted with financial support from the Spanish Ministry of Science and Innovation (PID2019-108965GB-I00) and the Centre of Andalusian Studies (PR137/19). José L. Lavado is partially supported by the UAM–ADIC Chair for Data Science and Machine Learnin

Measuring COVID-19 health literacy: validation of the COVID-19 HL questionnaire in Spain

Background: The COVID-19 pandemic has highlighted the importance of health literacy to make informed preventive decisions. A specifc COVID-19 health literacy questionnaire (CHL-Q) is included in the COVID-19 Snapshot Monitoring WHO initiative to conduct behavioral insights studies related to COVID-19. The objective was to assess the psychometric properties of a Spanish version of the COVID-19 Health Literacy Questionnaire (CHL-Q). Methods: Data quality, acceptability, internal consistency, and construct and structural validity were analyzed. A Rasch analysis was also performed. This cross-sectional, observational study was conducted on the Spanish general population after the frst wave of the pandemic and after the end of the general lockdown by an online survey agency. 1033 participants (inclusion criteria were being 18 years or older and living in Spain), was extracted from a panel of approximately 982,000 participants. The sampling was stratifed matching the Spanish general population in terms of age, gender, and area of residence. The CHL-Q includes 9 items and assesses people’s knowledge, motivation and competencies to access, understand, evaluate, and apply information about COVID-19 in order to make informed decisions. Results: CHL-Q index presented a mean of 33.89 (SD=9.4), and good ft to the Rasch model (χ2(32)=34.672, p=0.342, person separation index=0.77), with ordered thresholds, unidimensionality, item local independence, and no item bias by sex, age or education level. The CHL-Q showed signifcant diferent scores by level of education, experience of infection, confusion related to COVID-19 information and adherence to preventive measures. We found a statistically signifcant correlation between the CHL-Q index and the total number of preventive measures adopted, COVID-19 knowledge, and information seeking behaviour. The Cronbach´s alpha was 0.87 and the item total corrected correlation, 0.49–0.68. Conclusions: The Spanish version of CHL-Q is a short, adequate, and reliable instrument to measure COVID-19 related health literacy in the Spanish general population. Measuring the CHL in the population can be useful to evaluate whether public authorities, media and the medical and scientifc community have been able to reach the population to ofer the information in the terms they need it.This work was supported by Carlos III Health Institute.S

HKT1;1 and HKT1;2 Na+ Transporters from Solanum galapagense Play Different Roles in the Plant Na+ Distribution under Salinity

The study was funded by the Spanish Ministerio de Ciencia e Innovacion/Agencia Estatal de Investigacion, grants AGL2017-82452-C2-1R (A.B.) and AGL2017-82452-C2-2R (M.J.A) both from the, MCIN/AEI/10.13039/501100011033, the European Union (H2020 SFS-28-2020), contract number 101000716 (HARNESSTOM), and FEDER "Una manera de hacer Europa". J.E. was supported by a JAE Intro-CSIC grant, JAEINT_19_00566.Salt tolerance is a target trait in plant science and tomato breeding programs. Wild tomato accessions have been often explored for this purpose. Since shoot Na+/K+ is a key component of salt tolerance, RNAi-mediated knockdown isogenic lines obtained for Solanum galapagense alleles encoding both class I Na+ transporters HKT1;1 and HKT1;2 were used to investigate the silencing effects on the Na and K contents of the xylem sap, and source and sink organs of the scion, and their contribution to salt tolerance in all 16 rootstock/scion combinations of non-silenced and silenced lines, under two salinity treatments. The results show that SgHKT1;1 is operating differently from SgHKT1;2 regarding Na circulation in the tomato vascular system under salinity. A model was built to show that using silenced SgHKT1;1 line as rootstock would improve salt tolerance and fruit quality of varieties carrying the wild type SgHKT1;2 allele. Moreover, this increasing effect on both yield and fruit soluble solids content of silencing SgHKT1;1 could explain that a low expressing HKT1;1 variant was fixed in S. lycopersicum during domestication, and the paradox of increasing agronomic salt tolerance through silencing the HKT1;1 allele from S. galapagense, a salt adapted species.Spanish Ministerio de Ciencia e Innovacion/Agencia Estatal de Investigacion AGL2017-82452-C2-1R AGL2017-82452-C2-2R MCIN/AEI/10.13039/501100011033European Commission 101000716FEDER "Una manera de hacer Europa" JAEINT_19_0056