Influence of emotional intelligence on sport performance in elite canoeist

Several studies support the hypothesis that emotions are linked with sport performance. However, only a few studies have addressed the direct relationship between emotional intelligence (EI) and sport performance. In order to address this question, emotional intelligence was assessed in 50 elite male canoeists from a total of fourteen countries. The sample was divided into two groups based on the number of medals achieved at world championships [Expert level Group 1, had won 1 - 3 medals (n = 33), and Expert level Group 2 had won more than 3 medals (n = 17)]. As a secondary goal, the influence of years of practice on sport performance was examined. Results indicate that the Level 2 expert athletes scored higher in empathy (p < .05), emotional recognition (p < .05), emotional control and regulation (p < .001) and years of practice invested in their preparation (p<.001) than the Level 1 expert athletes. These findings make a valuable contribution to answering some key questions regarding high performance sport and the role of EI in elite sport performance

Body image and dietary habits in adolescents: a systematic review

Context: Adolescence is a critical developmental stage in which increasing concerns about body image (BI) coincide with the consolidation of dietary habits (DHs). Multiple studies have sought robust associations between BI and DHs to prevent unhealthy behaviors. Objective: The aim of this systematic review was to examine the available literature on the association between BI perception (BIP) and/or satisfaction (BIS) and DHs in adolescents. Data Sources: A search was carried out of 5 electronic databases (PubMed, SciELO, Cochrane, Embase, and PsycInfo) using a combination of keywords (and synonyms) related to adolescence, BI, and diet. Data Extraction: Data screening, extraction, and quality assessment were performed independently by 2 investigators using the PRISMA and AXIS guidelines. Data Analysis: Of 2496 articles screened, 30 articles, published in English or Spanish, that evaluated the relationship between BI and DHs in adolescents aged between 10 years and 18 years, were included. A relationship between accurate BI perception in adolescents and healthy DHs was reported in 5 articles (16.2%). A relationship between overestimation of body weight in adolescents and healthy DHs was reported in 4 articles (13.3%). A relationship between underestimation of body weight and unhealthy DHs was reported in 8 articles (26.7%). In addition, 4 articles (13.3%) reported a relationship between BIS and healthy DHs. The desire to gain weight was associated with unhealthy DHs in 3 (10%) of the articles, while the desire to lose weight was related to healthy DHs in 3 (10%) of the articles and to unhealthy DHs in 3 (10%) other articles. There were also gender differences in the relationship between BIP or BIS and DHs. Conclusion: Adolescents who underestimate their body weight tend to report less healthy DHs than body weight overestimators. Adolescents unsatisfied with their BI and with a drive for thinness frequently engage in DHs linked to losing weight. Systematic Review Registration: PROSPERO registration no. CRD42020184625

A New Missing Data Imputation Algorithm Applied to Electrical Data Loggers

Nowadays, data collection is a key process in the study of electrical power networks when searching for harmonics and a lack of balance among phases. In this context, the lack of data of any of the main electrical variables (phase-to-neutral voltage, phase-to-phase voltage, and current in each phase and power factor) adversely affects any time series study performed. When this occurs, a data imputation process must be accomplished in order to substitute the data that is missing for estimated values. This paper presents a novel missing data imputation method based on multivariate adaptive regression splines (MARS) and compares it with the well-known technique called multivariate imputation by chained equations (MICE). The results obtained demonstrate how the proposed method outperforms the MICE algorithm.Ministerio de Economía y Competitividad; AYA2014-57648-PAsturias (Comunidad Autónoma). Consejería de Economía y Empleo; FC-15-GRUPIN14-01

Resiliencia de jóvenes deportistas en función del carácter individual o colectivo de su práctica

The objective of this study was to determine the levels of resilience with its two dimensions, “acceptance of self and life" (AUM) and "individual competence" (CP), in individual and collective sports participants. Comparisons depending on competitive level and sex, as well as, intragroup and intergroup comparisons were performed. A total of 435 athletes (300 men and 135 women) completed a socio-demographic questionnaire and the Resilience Scale (Wagnild and Young, 1993). The results indicate that those who practise individual sports obtain average values of resilience and the CP dimension higher than those obtained by athletes who do so collectively (p &lt; 0.005). According to sex, in the AUM dimension, girls have lower averages than boys (p&lt; 0.005). As for the competitive level, the trend is that at a higher competitive level, higher average resilience score (p &lt; 0.05). The results draw the image of the athlete resilient as a young boy practicing sport of individual character and high level competitive.El objetivo de este estudio fue determinar los niveles de resiliencia con sus dos dimensiones, “Aceptación de uno mismo y de la vida” (AUM) y “Competencia Personal” (CP),en participantes de deportes de carácter individual y colectivo. Se realizaron comparaciones inter e intragrupo y en función del nivel competitivo y sexo. Un total de 435 deportistas (300 hombres y 135 mujeres) cumplimentaron un cuestionario socio-demográfico y La Escala de Resiliencia (Wagnild y Young, 1993). Los resultados señalan que quienes practican deportes de carácter individual obtienen valores medios de resiliencia y de la dimensión CP superiores a los obtenidos por deportistas que lo hacen de forma colectiva (p&lt;0.005). Respecto al sexo, en la dimensión AUM, las chicas presentan medias menores que los chicos (p&lt;0.005). En cuanto al nivel competitivo, la tendencia es que a mayor nivel competitivo, mayor puntuación media de resiliencia (p&lt;0.05).Los resultados dibujan la imagen del deportista resiliente como un chico joven&nbsp; practicante de deporte de carácter individual y de alto nivel competitivo

DIGESTIVE ENZYMES PROFILE IN OCTOPUS VULGARIS PARALARVAE FED WITH ARTEMIA ENRICHED WITH MARINE PHOSPHOLIPIDS

The common octopus (Octopus vulgaris) is an excellent candidate for aquaculture production, however the development of its culture needs to overcome the high paralarvae mortality which points out to zootechnical and nutritional problems. Enhancing the knowledge on paralarvae digestive physiology could increase the possibilities to optimize the diet in order to improve the paralarval growth and survival. In the present study, the effect of fed with Artemia enriched with marine phospholipids on digestive enzyme activity of octopus paralarvae from hatchling and 12 days old paralarvae have been studied

CARMENES input catalogue of M dwarfs IV. New rotation periods from photometric time series

Aims. The main goal of this work is to measure rotation periods of the M-type dwarf stars being observed by the CARMENES exoplanet survey to help distinguish radial-velocity signals produced by magnetic activity from those produced by exoplanets. Rotation periods are also fundamental for a detailed study of the relation between activity and rotation in late-type stars. Methods. We look for significant periodic signals in 622 photometric time series of 337 bright, nearby M dwarfs obtained by long-time baseline, automated surveys (MEarth, ASAS, SuperWASP, NSVS, Catalina, ASAS-SN, K2, and HATNet) and for 20 stars which we obtained with four 0.2-0.8 m telescopes at high geographical latitudes. Results. We present 142 rotation periods (73 new) from 0.12 d to 133 d and ten long-term activity cycles (six new) from 3.0 a to 11.5 a. We compare our determinations with those in the existing literature; we investigate the distribution of P rot in the CARMENES input catalogue,the amplitude of photometric variability, and their relation to vsin i and pEW(Halfa); and we identify three very active stars with new rotation periods between 0.34 d and 23.6 d.Comment: 34 pages, 43 figures, 2 appendix table

A Hybrid Algorithm for Missing Data Imputation and Its Application to Electrical Data Loggers

The storage of data is a key process in the study of electrical power networks related to the search for harmonics and the finding of a lack of balance among phases. The presence of missing data of any of the main electrical variables (phase-to-neutral voltage, phase-to-phase voltage, current in each phase and power factor) affects any time series study in a negative way that has to be addressed. When this occurs, missing data imputation algorithms are required. These algorithms are able to substitute the data that are missing for estimated values. This research presents a new algorithm for the missing data imputation method based on Self-Organized Maps Neural Networks and Mahalanobis distances and compares it not only with a well-known technique called Multivariate Imputation by Chained Equations (MICE) but also with an algorithm previously proposed by the authors called Adaptive Assignation Algorithm (AAA). The results obtained demonstrate how the proposed method outperforms both algorithms.Ministerio de Economía y Competitividad, AYA2014-57648-PAsturias (Comunidad Autónoma). Consejería de Economía y Empleo, FC-15-GRUPIN14-01