Una contribución al estudio de la vellosidad de los hilos.

La vellosidad o pilosidad de los hilos es una característica que hasta muy recientemente no ha tenido, pese a su importancia industrial, otra consideración que la puramente subjetiva, derivada de la apreciación sugerida por la observación visual, aunque ésta ocasionara o no el someterlos a la operación de chamuscado, para eliminarles el vello, considerado como defecto. Se han establecido varios índices de vellosidad, y se intenta, naturalmente, que la Industria Textil haga uso de ellos en su beneficio y para más exacto conocimiento de esta característica.Peer Reviewe

Puntos notables en las curvas torsión-resistencia de los hilos

Estudio de la relación existente entre la resistencia a la tracción de los hilos y sus diferentes estados de torsión.Peer Reviewe

Didactic itineraries: an interdisciplinary programme integrated in the curriculum

Resumen basado en el de la publicaciónTítulo, resumen y palabras clave también en inglésSe expone una propuesta de actividades de carácter interdisciplinar que se han ido integrando en el Programa de Itinerarios Didácticos de la Ecoescuela de Guazamara, experiencia que se ha ido consolidando en los últimos cursos, formando ya parte del proyecto educativo de este centro. En dichas actividades se muestra cómo los itinerarios didácticos pueden convertirse en un valioso instrumento integrador y vertebrador del curriculum, motivador y muy útil para trabajar diferentes competencias básicas; así como para introducir, desarrollar y complementar una gran variedad de objetivos y contenidos de nuestras programaciones. Esto, unido a que se trata de una propuesta basada en la normativa educativa vigente, contribuye a superar la tradicional consideración de los itinerarios didácticos como un complemento al margen del curriculum. Según los resultados, este tipo de experiencias son eficaces para alcanzar los objetivos planteados, mejorando, incluso, la valoración del entorno y la percepción del paisaje.ES

Forest Ecosystem Services: An Analysis of Worldwide Research

The relevance of forests to sustain human well-being and the serious threats they face have led to a notable increase of research works on forest ecosystem services during the last few years. This paper analyses the worldwide research dynamics on forest ecosystem services in the period from 1998 to 2017. A bibliometric analysis of 4284 articles was conducted. The results showed that the number of published research articles has especially increased during the last five years. In total, 68.63% of the articles were published in this period. This research line experiences a growing trend superior to the general publishing trend on forest research. In spite of this increase, its relative significance within the forest research is still limited. The most productive subject areas corresponded to Environmental Science, Agricultural and Biological Sciences and Social Sciences Economic topics are understudied. The scientific production is published in a wide range of journals. The three first publishing countries are United States, China and the United Kingdom. The most productive authors are attached to diverse research centres and their contributions are relatively recent. A high level of international cooperation has been observed between countries, institutions and authors. The findings of this study are useful for researchers since they give them an overview of the worldwide research trends on forest ecosystem services

What is the role of adherence to 24-hour movement guidelines in relation to physical fitness components among adolescents?

Background: Physical inactivity, excessive sedentary time, and lack of sleep time have been independently associated with lower health-related physical fitness. However, little is known about the combined association between 24-h movement guidelines (i.e., physical activity, recreational screen time, and sleep duration) and components of physical fitness. Objective: The main aim was to examine the likelihood of having high/very high levels on different components of physical fitness based on meeting with 24-h movement guidelines. Methods: In this cross-sectional study, 1276 Spanish youths (13.07±0.86; 55.88% boys), aged 11–16 years, completed self-reported questionnaires on physical activity, recreational screen time, and sleep duration. Physical fitness components were assessed by 20-m shuttle-run test, standing long jump test, handgrip strength test, and 4×10-m shuttle-run test. Meeting 24-h movement guidelines was defined as: 9–11h/day (children aged 5–13) or 8–10h/day (adolescents aged 14–17) of sleep, ≤2h/day of recreational screen time and at least 60min/day of moderateto-vigorous physical activity. The probability of having a high/very high score for each physical fitness components (i.e., ≥60th centile according to the normative cut-off points for European adolescents) in relation to adherence to 24-h movement guidelines was analyzed using a series of binary logistic regressions. Results: Participants who met the three 24-h movement guidelines were more likely to have high/very high for cardiorespiratory fitness (OR=3.31; 95% CI: 1.79, 6.14; p<0.001), standing long jump (OR=1.91; 95% CI: 1.06, 3.45; p=0.031), muscular fitness (OR=2.05; 95% CI: 1.09, 3.86; p=0.048) and physical fitness (OR=1.99; 95% CI: 1.08, 3.66; p=0.012), but not for handgrip strength (OR=1.15; 95% CI: 0.64, 2.01; p=0.636) and speed/agility (OR=1.65; 95% CI: 0.92, 2.96; p=0.093), compared to those who did not meet all three recommendations. Conclusion: Since meeting the three 24-h movement guidelines increased the likelihood of having higher levels in most physical fitness components, it seems necessary to promote these movement behaviors early in life, as they could serve as a gateway for improving health-related fitness in future generations.This study has been funded by the European Community and the Ministry of Economy of Extremadura (IB16193). We gratefully acknowledge the financial support of the Ministry of Economy and Infrastructures and European Community. Dr. Tapia-Serrano is supported by the Junta of Extremadura (PD18015) and European Social Fund (FSE). In addition, this research has been funded by the European Regional Development Fund, The FSE, and the Junta of Extremadura, with grant numbers GR21124. Dr. López-Gil is a Margarita Salas Fellow (Universidad Pública de Navarra – 1225/2022). Dr. García-Hermoso is a Miguel Servet Fellow (Instituto de Salud Carlos III-FSE – CP18/0150)

Narrativas y didáctica de las ciencias sociales: el pensamiento histórico del futuro profesorado en Educación Primaria

La presente investigación pretende acercarse al pensamiento histórico del profesorado en formación, dada la complejidad para abordar las nociones temporales con niños y niñas en el proceso de enseñanza-aprendizaje de la historia. Para ello, se han analizado diversas narrativas (entrevistas, diarios y cuentos) realizadas por el alumnado del Grado de Educación Primaria de la Universidad de ANÓNIMO entre los cursos 2015-2016 y 2018-2019, dentro de la asignatura de Didáctica de las Ciencias sociales. El análisis de las diferentes propuestas se sitúa dentro de una metodología cualitativa, empleando cuatro dimensiones: perspectiva histórica, comprensión histórica, procesos de causa/consecuencia y empatía histórica. Los resultados muestran que el profesorado en formación no presenta un nivel alto de pensamiento histórico, lo que indica la necesidad de abordar de una forma compleja su formación en el Grado. En este sentido, nuestra investigación se enmarca en una línea de estudios previos sobre la formación del profesorado desde la perspectiva de la didáctica de las ciencias sociales

Documentary Analysis of the Scientific Literature on Autism and Technology in Web of Science

The objective of the study is to track the progression of the scientific literature on autism and the technology applied to this disorder. A bibliometric methodology has been used, based on a co-word analysis. The Web of Science database was chosen to perform the analysis of the literature. A unit of analysis of 1048 publications was configured. SciMAT software was used mainly for document analysis. The results indicate that the first studies appeared in 1992, but it was not until 2009 that the research volume increased considerably. The area of knowledge where these studies were compiled was rehabilitation, which marks the truly therapeutic nature of this type of study. One of the authors with the most studies, as well as the most relevant research, was Sarkar, N. Manuscripts were usually research articles written in English. It could be concluded that research in this field of study focused mainly on interventions carried out through the use of technological resources, with students or young people who present with ASD. This line of research, although not the only one, was the most relevant and the one that had aroused the most interest among the scientific community

Divorcio ante Notario

El presente Trabajo versa sobre la novedosa modalidad de divorcio ante Notario a partir de la reforma introducida por la Ley 15/2015, de 2 de julio, de Jurisdicción Voluntaria, dentro del Código Civil a través de la modificación de diversos preceptos legales. Gracias a esta regulación, será posible llevar a cabo por los Notarios (y Letrados de la Administración de Justicia), en su calidad de fedatario público, un divorcio por mutuo acuerdo donde no existan hijos menores de edad o con la capacidad judicialmente modificada. Se expone una visión del divorcio notarial en su conjunto, abordando las características principales y de interés que han suscitado debate en la sociedad como consecuencia del surgimiento de imprecisiones legales y de su experiencia en la práctica. <br /

Benthic litter distribution on circalittoral and deep sea bottoms of the southern Bay of Biscay: Analysis of potential drivers

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Perceptions of Heritage among Students of Early Childhood and Primary Education

In recent decades, a growing awareness of the importance of preserving cultural heritage as a means of promoting sustainable development has been accompanied by a similar re-evaluation of the role of heritage education as a key driver of citizen engagement. The development and implementation of heritage education at all levels, particularly in the context of teacher training, is of vital importance. The aim of this study is to analyse student teachers’ understanding of heritage and its potential as an educational tool, in order to identify measures to enhance teacher training and practice with respect to heritage and heritage education. The research design consists of a comparative study of a non-random sample of 149 trainee teachers undertaking Bachelor’s degrees in Early Childhood Education and Primary Education at the University of Córdoba (Spain). The results reveal a mainly cultural conception of heritage among both groups, based on local material elements, and little sense of the link between heritage and present-day life. The students studying early childhood education were found to display a more specific knowledge of heritage in their answers, while the primary education students showed a greater awareness of identity and values as features of cultural heritage