Modelling Electricity Swaps with Stochastic Forward Premium Models

We present a new model for pricing electricity swaps. Two general factors affect contracts but unique risk elements affect each contract. General factors are average swap prices and deterministic trend-seasonal components, and unique elements are forward premiums. Innovations follow MNIG distributions. We estimate the model with data from the European Energy Exchange. The model outperforms four competitors, both in in-sample valuation and in out-of-sample forecasting, and in fitting the term structure of volatilities by market segments. Competitor models are (i) diffusion spot prices, (ii) jump-diffusion spot prices with time dependent volatility, (iii) HJM-based and (iv) Levy multifactor model with NIG distributions. Value-at-Risk measures based on normality strongly underestimate tail risk but our model gives estimates that are more exact.Juan Ignacio Peña and Rosa Rodriguez acknowledge financial support from the Ministry of Economics and Competitiveness, respectively, through grants ECO2012-35023, ECO2016-77807-P, and ECO2012-3655

Emotional Intelligence of Undergraduate Athletes: The Role of Sports Experience.

Sport is an emotional experience. Studies have shown that high emotional intelligence (EI) is associated with better sports performance, though different aspects of sports experience and their relationship with EI are still unclear. This study examined the possible relationships between sports experience and EI dimensions of undergraduate athletes. Likewise, according to the differences described in the literature between men and women, the secondary aim was to identify the possible relationship between EI and sports experience in both subgroups. A total of 1784 [712 men (39.9%), 1072 women (60.1%); mean age = 21.3 years, SD = 4.2)] undergraduate athletes completed the Trait Meta Mood Scale and a sports experience questionnaire. Comparisons between groups were performed using Mann–Whitney-U and H-Kruskal–Wallis tests and correlations between variables were analyzed using Spearman correlation. We found that the number of different sports practiced and the number of years practicing sports were positively associated with emotional repair (ER). However, the number of years practicing sports was negatively associated with emotional attention (EA). Male athletes who trained more and had a higher competitive level were more likely to show higher ER. In any case, it is necessary to take into account that all the associations were weak. Our study suggested that athletes tend to attend to and value their feelings and use positive thinking to repair their negative moods.post-print196 K

Emotional Intelligence in Physical Activity, Sports and Judo: A Global Approach.

Emotional intelligence (EI) has been studied in relation to health and physical activity (PA) or in a sport-specific approach. EI is related to sports performance; however, combat sports seem to show characteristics of their own that involve better control of emotions than other sports. This study aimed to analyse whether there are differences in EI dimensions between those who do not achieve World Health Organization (WHO) PA recommendations, those who meet WHO PA recommendations, those who meet WHO PA recommendations practising sports, and judokas of different levels. A descriptive and cross-sectional study was conducted. The sample comprised 2938 undergraduate students from Madrid and 487 active Spanish judokas. PA was measured by the Global Physical Activity Questionnaire (GPAQ). EI was assessed by the Trait Meta-Mood Scale (TMMS-24). Three different one-way ANOVA and ANCOVA (controlling for gender and age) were conducted to compare the effect of type of group studied on the EI dimensions. Significant differences in EI dimensions were found between those who do not meet PA recommendations, those who meet PA recommendations, those who meet PA recommendations practising sports, and judo athletes of different levels. However, when controlling for gender and age, these differences remained specifically in emotional attention and in emotional repair. Judo athletes and high-performance judo athletes showed better EI than the rest of the studied groups.post-print375 K

miR-127 protects proximal tubule cells against ischemia/reperfusion : identification of Kinesin family member 3B as miR-127 target

Ischemia/reperfusion (I/R) is at the basis of renal transplantation and acute kidney injury. Molecular mechanisms underlying proximal tubule response to I/R will allow the identification of new therapeutic targets for both clinical settings. microRNAs have emerged as crucial and tight regulators of the cellular response to insults including hypoxia. Here, we have identified several miRNAs involved in the response of the proximal tubule cell to I/R. Microarrays and RT-PCR analysis of proximal tubule cells submitted to I/R mimicking conditions in vitro demonstrated that miR-127 is induced during ischemia and also during reperfusion. miR-127 is also modulated in a rat model of renal I/R. Interference approaches demonstrated that ischemic induction of miR-127 is mediated by Hypoxia Inducible Factor-1alpha (HIF-1α) stabilization. Moreover, miR-127 is involved in cell-matrix and cell-cell adhesion maintenance, since overexpression of miR-127 maintains focal adhesion complex assembly and the integrity of tight junctions. miR-127 also regulates intracellular trafficking since miR-127 interference promotes dextran-FITC uptake. In fact, we have identified the Kinesin Family Member 3B (KIF3B), involved in cell trafficking, as a target of miR-127 in rat proximal tubule cells. In summary, we have described a novel role of miR-127 in cell adhesion and its regulation by HIF-1α. We also identified for the first time KIF3B as a miR-127 target. Both, miR-127 and KIF3B appear as key mediators of proximal epithelial tubule cell response to I/R with potential al application in renal ischemic damage management

Physical Activity and Mental Health in Undergraduate Students

[EN] Most research support positive relationships between physical activity and mental health. However, possible moderating variables of these relationships have also been identified, such as age, gender, level of physical activity, and the scope of physical activity. This study aimed to analyze the relationships between physical activity and mental health levels in undergraduate students, assessing whether these associations can change depending on the level of physical activity (low, medium, or high) and the setting (occupational, commuting, or leisure time physical activity) in which it was performed. A descriptive and cross-sectional study was conducted. The sample comprised 847 undergraduate students. Physical activity and mental health were measured by the Global Physical Activity Questionnaire (GPAQv2) and the General Health Questionnaire (GHQ-12). We found relationships between students’ physical activity level and their mental health status. The higher the total physical activity, the better their mental health scores. High levels of commuting and leisure time physical activity is also associated with better mental health, while only moderate levels of occupational physical activity are associated with better mental health status. Regarding the possible associations between physical activity and vulnerability to mental health problems, with the fully adjusted regression model, leisure time and occupational physical activity remain protective of a poor state of mental health. Leisure time physical activity, performed at a high level, and moderate occupational physical activity seems to be the best combination of physical activity to reduce students’ vulnerability to potential mental health problems.SIUniversidad Francisco de Vitori

Fundamentos lógicos de la programación

Este manuscrito cubre los contenidos de la asignatura Fundamentos Lógicos de la Programación. Incluye demostración formal y semántica de la lógica proposicional, semántica y deducción en lógica de primer orden. Por último se describe el principio de resolución para deducción automática.This manuscript covers the contents of the course Principles of logic in programming. It includes both formal and semantic propositional logic, first order logic, and resolution principle for automatic theorem proving

Trajectory determination at Muon Impact Tracer and Observer (MITO) using artificial neural networks

We propose a method for the determination of the impact point of muons in each of the two detection planes of the Muon Impact Tracer and Observer (MITO) telescope, which is part of the ORCA (Antarctic Cosmic Ray Observatory). The method uses the relative pulse height obtained by the four photomultipliers associated to the scintillator with the Adaptable and Reconfigurable Acquisition Con- cept for Nuclear Electronics (ARACNE) data adquisition module. These pulses are processed with an Artificial Neural Network (ANN) previously trained with the GEANT4 model of the detector. With the impact point in both MITO planes, we estimate the angle of inci- dence of these particles with in order to evaluate the isotropy of the incident particles. To validate the method, real data from recorded by MITO in Livingston Island, Antarctica have been used to evaluate the feasibility of this method and its application to space weather.Agencia Estatal de Investigació

Procedimiento de diseño de un exoesqueleto de miembro superior para soporte de cargas

[Resumen] El presente artículo describe el proceso de diseño de un exoesqueleto de miembro superior dentro del marco del proyecto ExIF, el cual tiene como objetivo dar soporte al operador en tareas de instalación y mantenimiento de instalaciones. Además, se pretende estudiar las características técnicas que deberán cumplir los motores que se seleccionen para accionar dicho dispositivo, con el objetivo de que se cumplan con las especificaciones técnicas y requerimientos de las tareas objetivo seleccionadas.Generalitat Valenciana; ACIF 2016/21

Trajectory determination of muons using scintillators and a novel self-organizative map

In this work we propose a method for the determination of the impact point of muons in scintillators using a novel type of self-organizative maps called Self-Equalizing Map (SEM) and comparing the relative pulse height obtained by four photomultipliers (PMTs) at each scintillator. Using two 1 m${^2}$ scintillators and calculating the impact point in both of them, we can also estimate the angle of incidence of these particles. This method has been specifically designed for a muon telescope called MITO (Muon Impact Tracer and Observer) which is part of the ORCA (Antarctic Cosmic Ray Observatory). Data from tests using MITO in Livingston Island, Antarctica have been used to evaluate the feasibility of this method. The obtained directions have been found to be consistent with the expected incident directions of atmospheric muons produced by the interaction between CRs and atmospheric atoms.Agencia Estatal de Investigació

Technologies for Monitoring Lifestyle Habits Related to Brain Health : A Systematic Review

Brain health refers to the preservation of brain integrity and function optimized for an individual's biological age. Several studies have demonstrated that our lifestyles habits impact our brain health and our cognitive and mental wellbeing. Monitoring such lifestyles is thus critical and mobile technologies are essential to enable such a goal. Three databases were selected to carry out the search. Then, a PRISMA and PICOTS based criteria for a more detailed review on the basis of monitoring lifestyle aspects were used to filter the publications. We identified 133 publications after removing duplicates. Fifteen were finally selected from our criteria. Many studies still use questionnaires as the only tool for monitoring and do not apply advanced analytic or AI approaches to fine-tune results. We anticipate a transformative boom in the near future developing and implementing solutions that are able to integrate, in a flexible and adaptable way, data from technologies and devices that users might already use. This will enable continuous monitoring of objective data to guide the personalized definition of lifestyle goals and data-driven coaching to offer the necessary support to ensure adherence and satisfaction