RESUMEN

In this study, the open-hole quasi-static tensile and fatigue loading behavior of a multidirectional CFRP thick laminate, representative of laminates used in the aerospace industry, is studied. Non-destructive techniques such as infrared thermographic (IRT) and digital image correlation (DIC) are used to analyze the behavior of this material. We aim at characterizing the influence of the manufacturing defects and the stress concentrator through the temperature variation and strain distribution during fatigue and quasi-static tests. On the one hand, the fatigue specimens were tested in two main perpendicular directions of the laminate. The results revealed that manufacturing defects such as fiber waviness can have a major impact than open-hole stress concentrator on raising the material temperature and causing fracture. In addition, the number of plies with fibers oriented in the load direction can drastically reduce the temperature increment in the laminate. On the other hand, the quasi-static tensile tests showed that the strain distribution around the hole is able to predict the crack initiation and progression in the external plies. Finally, the experimental quasi-static tests were numerically simulated using the finite element method showing good agreement between the numerical and experimental results.

RESUMEN

Interpersonal Acceptance-Rejection theory (IPARTheory) provides a good theoretical framework to explain the parenting dimensions that influence children's social, cognitive and emotional adjustment. This theory develops one main dimension, warmth-rejection, where warmth would be one pole of the dimension and rejection the opposite one. Besides, the theory has also defined behavioral control dimension with two poles: permissiveness-strictness. In the context of this theory, our study was conducted with a sample of Spanish parents to (a) examine whether parental perceived acceptance-rejection was related to parental behavioral control; (2) analyze how behavioral control dimension worked in acceptance-rejection theory; and (3) examine whether there were differences in the relations obtained between fathers and mothers. We have to conclude that control behavior correlates positively with warmth behaviors. Fathers' and mothers' correlations among these dimensions show that parents can develop certain control behaviors but that they are compatible with affection conducts (AU)

Control parental en la teoría de la aceptación-rechazo interpersonal: un estudio con una muestra española usando la Versión de los Padres del Cuestionario de Aceptación / Control Parental. La teoría de la aceptación - rechazo interpersonal (IPART) proporciona un adecuado marco teórico para explicar las diversas dimensiones parentales que influencian el ajuste social, cognitivo y emocional de los niños. En efecto, esta teoría desarrolla una dimensión principal, cariño - rechazo, en la que el cariño se encontraría situado en un extremo del continuo y el rechazo en el opuesto. Además, esta teoría también define el control parental tomando como referencia dos polos: el control permisivo y el restrictivo. En el contexto de esta teoría, nuestro estudio ha sido llevado a cabo con una muestra de padres para (a) examinar en qué medida los padres y las madres perciben la aceptación - rechazo como elementos integrantes de su comportamiento de control parental (b) analizar cómo funciona la dimensión control dentro de la teoría IPART (c) examinar si se observan diferencias en las relaciones observadas en los padres y en las madres. Se concluye que el control de conductas correlaciona positivamente con las conductas de cariño. Las correlaciones de padres y madres en estas dimensiones muestran que los padres pueden desarrollar ciertos comportamientos de control pero que éstos son compatibles con las conductas afectivas (AU)

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RESUMEN

Los estilos educativos paternos constituyen uno de los elementos claves de la socialización familiar. El objetivo de estas páginas es mostrar los resultados de una investigación llevada a cabo en el Principado de Asturias con 2.965 familias que tienen niños de Educación Infantil y Primaria (5-8 años). Dicho estudio trata de analizar, entre otros aspectos, las tendencias de comportamiento paternas en la educación de los hijos/as. El análisis de los resultados obtenidos nos permite: 1) determinar cuál son las tendencias actitudinales y comportamentales que prefieren y utilizan, habitualmente, los padres/madres para la crianza y educación de sus hijos; 2) determinar el número de personas que tienen un estilo educativo definido y delimitar las características socioeducativas que estos padres representan. Finalmente, se plantea la necesidad de cambiar algunos comportamientos parentales e insistir en los programas de educación familiar, a fin de promover modelos de prácticas educativas y modificar o mejorar prácticas existentes (AU)

Parental educational styles constitute one of the key elements of family socialization. The aim of the present essay is to present the results of a research project carried out in the Principality of Asturias (Spain) among 2,965 families with children of infant and primary-school age (5-8 years old). This research attempts to analyse, among other aspects, parental behaviour tendencies in child upbringing. The analysis of the results obtained allows us to: 1) identify the most common attitudinal and behavioural tendencies of parents in the upbringing of their children; 2) determine how many people have a well defined parental style, and delimit their socio-educational characteristics. Lastly, we consider the need to change some parental behaviour patterns and stress the importance of family education programmes, with the aim of promoting appropriate parenting models and modifying or improving current practices(AU)

Asunto(s)

RESUMEN

Parental educational styles constitute one of the key elements of family socialization. The aim of the present essay is to present the results of a research project carried out in the Principality of Asturias (Spain) among 2,965 families with children of infant and primary-school age (5-8 years old). This research attempts to analyse, among other aspects, parental behaviour tendencies in child upbringing. The analysis of the results obtained allows us to: 1) identify the most common attitudinal and behavioural tendencies of parents in the upbringing of their children; 2) determine how many people have a well defined parental style, and delimit their socio-educational characteristics. Lastly, we consider the need to change some parental behaviour patterns and stress the importance of family education programmes, with the aim of promoting appropriate parenting models and modifying or improving current practices.

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