Validation and reliability of a test which evaluate the coordination manual and agility in rhythmic gymnastics.

El objetivo de este estudio fue desarrollar y validar un test que permita evaluar la coordinación óculo manual y agilidad en gimnastas de rítmica. Un panel de expertos se responsabilizó de la selección de las tareas que conformaron la composición inicial del test. Una vez constituido y validado mediante la opinión de expertos de forma unánime, el test se aplicó a una muestra de 60 gimnastas de 12 a 18 años (Media Edad= 13,76 ±1,53; Talla= 1,54 ± 0,065 y Peso= 44,78 ± 6,55). La fiabilidad del test mediante el cálculo de la consistencia interna a través de Alfa de Cronbach fue de .885 siendo el coeficiente de correlación del test-retest de .799 Se concluye que el test es un instrumento válido y fiable para medir la coordinación en gimnastas.The objective of this study was to develop and validate a test that allows the evaluation of manual eye coordination and agility in rhythmic gymnasts. A panel of experts was responsible for the selection of the tasks that formed the initial composition of the test. Once constituted and validated by the opinion of the experts in a unanimous way, the test was applied to a sample of 60 gymnasts from 12 to 18 years old (Average Age = 13.76 ± 1.53, Size = 1.54 ± 0.065) and Weight = 44.78 ± 6.55). The reliability of the test for the calculation of the internal consistency through Cronbach's alpha was .885 with the correlation coefficient of the test-retest of .799 It is concluded that the test is a valid and reliable instrument to measure the coordination in gymnasts

Computer student profile for the design of the Tutor system

desde hace varias décadas ha existido un interés en conocer los factores que se involucran en el aprendizaje de programación y los retos que existen en el proceso de desarrollo de habilidades algorítmicas con el fin de minimizar las estadísticas de reprobación en esta área. por lo tanto, es necesario contemplar estrategias didácticas con las que el estudiante aprenda de forma autónoma. se requiere que los estudiantes de nuevo ingreso a nivel superior desarrollen habilidades algorítmicas como parte de sus competencias genéricas primordiales. El presente trabajo muestra las características del estudiante, a partir de tres aspectos: el conocimiento previo, el estilo de aprendizaje, y nivel de razonamiento, para desarrollar habilidades algorítmicas en estudiantes de nuevo ingreso a la facultad de Computación. La metodología utilizada es cuantitativa, se aplicaron tres test: estilos de aprendizaje, razonamiento científico y pensamiento computacional. La muestra son estudiantes de nuevo ingreso a licenciatura en computación de méxico y Colombia. El proceso estadístico es a partir de estadística no inferencial, los resultados indican que en ambas regiones los estudiantes presentan tendencias similares en el estilo de aprendizaje, nivel de razonamiento y pensamiento computacional. principalmente los datos obtenidos del test de pensamiento computacional aplicados a estudiantes se comparan para determinar las tendencias de sus habilidades algorítmicas, los resultados abonan en la caracterización para el modelo de estudiante y al diseño de actividades para el prototipo del sTI (sistema Tutor Inteligente)since several decades there has been an interest in knowing the factors that involve programming learning and the challenges that exist in the process of developing algorithmic skills in order to minimize the low learning outcomes in this area. Therefore, it is necessary to consider didactic strategies to help students to learn autonomously. As part of their primary generic competencies, undergraduate students are required to develop algorithmic skills. This paper reports the results of reviewing some student’ characteristics (prior knowledge, learning style, and level of reasoning), needed to develop algorithmic skills in recent students at the Computing faculty. The methodology used is quantitative, three tests were applied: learning styles, scientific reasoning and computational thinking. The sample comprehends new entrance undergraduates in Computer science from mexico and Colombia. The statistical process is based on non-inferential statistics, the results indicate that in both regions students have similar trends in learning style, reasoning level and computational thinking. These results will inform the characterization for the student model and the design of activities for the ITs prototype (Intelligent Tutoring system

Relación de la actividad física con los factores de riesgo cardiovascular en ciudadanos adultos de Melilla

Physical activity has a positive influence on people's health, playing a key role in the prevention, treatment, control and rehabilitation of chronic non-communicable diseases. The aim of the study is to analyse the relationship between the practice of physical activity and cardiovascular risk factors. Cross-sectional and correlational study using a questionnaire with a sample of 160 participants. The results show that 70% of the sample stated that they did not do much physical activity compared to 33% who stated that they did moderate/high levels of physical activity. Of the variables related to cardiovascular risk, sex, glycemia and systolic blood pressure are significantly associated with the degree of physical activity (p<.05). It is essential to strengthen health education for the entire population in order to maintain adequate physical activity and other healthy lifestyles that will have an impact on reducing preventable chronic diseases.La actividad física influye positivamente en la salud de las personas, teniendo un papel fundamental en la prevención, tratamiento, control y rehabilitación de las enfermedades crónicas no transmisibles. El objetivo del estudio es analizar la relación entre la práctica de actividad física y los factores de riesgo cardiovascular. Estudio transversal y correlacional mediante un cuestionario con una muestra de 160 participantes. Los resultados muestran que el 70% de la muestra manifiesta no hacer prácticamente actividad física frente a un 33% que afirma realizar una actividad física moderada/alta. De las variables relacionadas con el riesgo cardiovascular sexo, glucemia y tensión arterial sistólica se encuentran asociadas con el grado de actividad física de forma significativa (p<.05). Es fundamental reforzar la educación sanitaria a toda la población para mantener una adecuada actividad física y otros estilos de vida saludables que repercutan en la disminución de las enfermedades crónicas prevenibles

Auto-conceito físico em ginastas acrobáticos vs. Adolescentes sedentários

Resumen: Objetivos: determinar si existen diferencias en el autoconcepto físico global y sus diferentes subescalas entre adolescentes practicantes de gimnasia acrobática (GA) y sedentarios en función del sexo, así como comprobar posibles relaciones de la práctica de la GA con el autoconcepto físico. Métodos: Estudio no experimental, de tipo descriptivo y corte trasversal, con la participación de 130 estudiantes adolescentes entre 13 y 19 años (M=15,9 DT =1,5) gimnastas de acrobática y sedentarios (53,07% gimnastas de acrobática y 46,92% adolescentes sedentarios). Estudiando variables antropométricas (IMC) y autoconcepto físico (CAF). Resultados y discusión: Se observaron diferencias significativas a favor de los practicantes de GA en todas las subescalas del autoconcepto físico, a excepción del autoconcepto general sin diferencias en cuanto al sexo. En los no practicantes, los chicos obtuvieron resultados ligeramente mayores que en las chicas en todas las dimensiones, arrojando diferencias significativas en los valores de los rangos promedio a su favor en la dimensión Fuerza (U = 1030,5, p = ,000, r = -3,739) Conclusiones: Los adolescentes que practican GA presentan un mejor autoconcepto físico que los sedentarios sin diferencias significativas en cuanto al sexo. Esto indica que la práctica de la gimnasia puede favorecer el desarrollo de un mejor autoconcepto físicoAbstract: Aim: To determine whether there are differences in the global physical self-concept and its different subscales between adolescents who practice acrobatic gymnastics (AG) and sedentary adolescents according to sex, as well as to check possible relationships between the practice of AG and physical self-concept. Methods: Non-experimental, descriptive, cross-sectional study, with the participation of 130 adolescent students between 13 and 19 years of age (M=15.9 SD=1.5) acrobatic and sedentary gymnasts (53.07% acrobatic gymnasts and 46.92% sedentary adolescents). Studying anthropometric variables (BMI) and physical self-concept (CAF). Results & discussion: Significant differences in favour of GA practitioners were observed in all physical self-concept subscales, with the exception of general self-concept with no gender differences. In the non-practitioners, boys scored slightly higher than girls in all dimensions, with significant differences in the mean rank values in their favour in the Strength dimension (U = 1030.5, p = ,000, r = -3.739). Conclusions: Adolescents who practice gymnastics have a better physical self-concept than sedentary adolescents, with no significant differences in terms of gender. This indicates that the practice of gymnastics may favour the development of a better physical self-concept.Resumo: Objectivos: determinar se existem diferenças no autoconceito físico global e nas suas diferentes subscales entre adolescentes que praticam ginástica acrobática (AG) e adolescentes sedentários segundo o sexo, bem como verificar possíveis relações entre a prática da AG e o autoconceito físico. Métodos: Estudo não experimental, descritivo, transversal com a participação de 130 estudantes adolescentes entre os 13 e 19 anos (M=15,9 SD=1,5) ginastas acrobáticos e adolescentes sedentários (53,07% ginastas acrobáticos e 46,92% adolescentes sedentários). Estudo de variáveis antropométricas (IMC) e auto-conceito físico (CAF). Resultados e discussão: Foram observadas diferenças significativas a favor dos praticantes de AG em todas as subscrições de autoconceito físico, com excepção do autoconceito geral, sem diferenças em termos de sexo. Nos não praticantes, os rapazes pontuaram ligeiramente mais do que as raparigas em todas as dimensões, com diferenças significativas nos valores médios a seu favor na dimensão Força (U = 1030,5, p = ,000, r = -3,739) Conclusões: Os adolescentes que praticam AG apresentam um melhor autoconceito físico do que os adolescentes sedentários, sem diferenças significativas em termos de género. Isto indica que a prática da ginástica pode favorecer o desenvolvimento de um melhor autoconceito físico

Population vulnerability to extreme cold days in rural and urban municipalities in ten provinces in Spain

Background: The objective was to analyze whether there are differences in vulnerability to Extreme Cold Days (ECD) between rural and urban populations in Spain. Methodology: Time series analysis carried out from January 1, 2000, through December 31, 2013. Municipalities with over 10,000 inhabitants were included from 10 Spanish provinces, classified into 42 groups by isoclimate and urban/rural character as defined by Eurostat criteria. The statistical strategy was carried out in two phases. First: It was analyzed the relationship between minimum daily temperature (Tmin) (source: AEMET) and the rate of daily winter mortality due to natural causes —CIE-10: A00 – R99— (source: National Statistics Institute). Then, It was determinated the threshold of Tmin that defines the ECD and its percentile in the series of winter Tmin (Pthreshold), which is a measure of vulnerability to ECD so that the higher the percentile, the higher the vulnerability. Second: possible explanatory variables of vulnerability were explored using Mixed Generalized Models, using 13 independent variables related to meteorology, environment, socioeconomics, demographics and housing quality. Results: The average Pthreshold was 18 %. The final model indicated that for each percentage point increase in unemployment, the vulnerability to ECD increased by 0.4 (0.2, 0.6) points. Also, with each point increase in rurality index, this vulnerability decreased by −6.1 (−2.1, −10.0) points. Although less determinant, other factors that could contribute to explaining vulnerability at the province level included minimum winter daily temperatures and the percentage of housing with poor insulation. Conclusions: The vulnerability to ECD was greater in urban zones than in rural zones. Socioeconomic status is a key to understanding how this vulnerability is distributed. These results suggest the need to implement public health prevention plans to address ECD at the state level. These plans should be based on threshold temperatures determined at the smallest scale possibleThe authors wish to thank the funding provided by the ENPY107/18, ENPY 376/18, ENPY 304/20 projects of the Carlos III Health Institute III (ISCIII

Production of extracts with anaesthetic activity from the culture of Heterosigma akashiwo in pilot-scale photobioreactors

The shear-sensitive microalga Heterosigma akashiwo is known to produce brevetoxin-like compounds that are active in voltage-dependent sodium channels. In this work, we present a study on the production of anaesthetic extracts from H. akashiwo biomass obtained in low-shear bioreactors at different growth phases. The photobioreactors (PBRs) used had specific configurations and were operated in such a way as to avoid cellular damage by hydrodynamic stress. Cultures were developed in small static-control flasks and PBRs with volumes ranging from 1.5 L to 200 L. The bioactivity of the produced extracts was assessed in vitro (Neuro-2a cell-based assay) and in vivo (Zebra fish model). Bioactivity depended slightly on the growth phase and culture system, with greater toxicity with the Neuro-2a model when stationary-phase extracts were used. Interestingly, extracts were not cytotoxic against other human cell lines. Steady production of anaesthetic bioactives was observed. In vivo anaesthetic efficacy, assessed with the Zebra fish model, was similar to that of commercial products, and without any observed mortality at 24-h post exposure

Interfaz Gráfica Computacional para Destilación Multicomponente utilizando Métodos Cortos

In this work, we developed a graphical interface that determines by steady-state simulation the number of plates required for multicomponent distillation process and the composition of distillate and bottoms flow of a distillation tower using short-cut methods. The graphical user interface was built in the programming language Python 2.5, allows to present the input and output data for the case of distillation columns operating in steady state. The results of using the graphical interface shows a simple way to make preliminary designs of distillation towers and its potential as support material for the study and understanding of basic concepts in multicomponent distillation. In a later work it will can display the dynamic model performance through scheduled disturbances in operating conditions.Keywords: multicomponent distillation, shorcut methods, graphical user interface, Phyton 2.5.DOI: http://dx.doi.org/10.5377/nexo.v24i2.660En este trabajo, se elaboró una interfaz gráfica que determina por medio de simulación en estado estacionario el número de platos necesarios en el proceso de destilación multicomponente, así como la composición en el flujo de destilado y fondos de una torre de destilación utilizando métodos cortos. La interfaz gráfica de usuario, se construyó en el lenguaje de programación Python 2.5, permite presentar los datos de entrada y salida para el caso de columnas de destilación operando en régimen permanente. Los resultados del uso de la interfaz gráfica muestran una forma simple de realizar diseños preliminares de torres de destilación y su potencialidad como material de apoyo para el estudio y comprensión de conceptos básicos en destilación multicomponente. En un trabajo posterior se podrá visualizar el desempeño del modelo dinámico a través de perturbaciones programadas en las condiciones de operación.Palabras claves: destilación multicomponente, métodos cortos, interfaz gráfica de usuario, Phyton 2.5.DOI: http://dx.doi.org/10.5377/nexo.v24i2.66

Data on the Amphidinium Carterae Dn241EHU Isolation and Morphological and Molecular Characterization

We present the data corresponding to the isolation and morphological and molecular characterization of a strain of Amphidinium carterae, isolated in Mallorca Island waters and now deposited in the microalgae culture collection of the Plant Biology and Ecology Department of the University of the Basque Country under the reference Dn241Ehu. The morphological characterization was made using two different techniques of microscopy and the molecular characterization by using the 28S rDNA sequences of D1 and D2 domains. This strain has been used for a culture study in an indoor LED-lighted pilot-scale raceway to determine its production of carotenoids and fatty acids, "Long-term culture of the marine dinoflagellate microalga Amphidinium carterae in an indoor LED-lighted raceway photobioreactor: Production of carotenoids and fatty acids." (Molina-Miras et al., 2018) [1]. (C) 2018 The Authors. Published by Elsevier Inc.This research was funded by the Spanish Ministry of Economy and Competitiveness (CTQ2014-55888-C3-02), the European Regional Development Fund Program, and the projects PPG17/67 from the UPV/EHU and IT1040-16 from the Basque Government

Will there be cold-related mortality in Spain over the 2021–2050 and 2051–2100 time horizons despite the increase in temperatures as a consequence of climate change?

Global warming is resulting in an increase in temperatures which is set to become more marked by the end of the century and depends on the accelerating pace of greenhouse gas emissions into the atmosphere. Yet even in this scenario, so-called “cold waves” will continue to be generated and have an impact on health. Objectives: This study sought to analyse the impact of cold waves on daily mortality at a provincial level in Spain over the 2021–2050 and 2051–2100 time horizons under RCP4.5 and RCP 8.5 emission scenarios, on the basis of two hypotheses: (1) that the cold-wave definition temperature (T threshold) would not vary over time; and, (2) that there would be a variation in T threshold

Análisis de la relación existente entre el uso de videojuegos y la práctica de actividad física

New Technologies, and especially video games, are part of the daily life of children. The main objective of this study is to analyze whether the practice of physical activity can reduce the problems generated by the continued use of video games. To this end, a sample of 220 students was analyzed and their use of videogames was studied (through the Questionnaire of Experiences Related to Video Games), the weekly physical activity they performed and whether or not they were federated (through a sheet of self-registration). These data were also analyzed according to gender. Through the SPSS program, the levels of both variables and their relationship were studied. It is concluded that the practice of physical activity reduces the number of students without problems related to video games.Las Nuevas Tecnologías, y en especial los videojuegos, forman parte de la vida diaria de los niños. El objetivo principal de este estudio es analizar si la práctica de actividad física puede reducir los problemas que genera el uso continuado de los videojuegos. Para ello se analizó una muestra de 220 alumnos y se estudió el uso que hacían de los videojuegos (a través del Cuestionario de Experiencias Relacionadas con los Videojuegos), la actividad física semanal que realizaban y si estaban o no federados (a través de una hoja de autoregistro). Estos datos se analizaron también en función del género. A través del programa SPSS se estudiaron los niveles de ambas variables y su relación. Se concluye que la práctica de actividad física reduce la cantidad de alumnos sin problemas relacionados con los videojuegos