Professional Learning Community Assessment-Revised (PLCA-R) questionnaire: translation and validation in Spanish context

Learning Environments Research - The analysis of professional community is a good indicator of the degree of professional and institutional development of a school. The Professional Learning...     

Prelinguistic sign mixity and flexibility in interaction

Based upon a reflection on the social origins of human psychological functions the authors propose an analysis of the transmission-appropriation of object uses by the 7 to 13 month old child through interaction with the adult termed baby-object-adult triadic interaction. The analysis is based on Peirce’s semiotics. Semiotic processes involved in the interaction are analysed with categories of icons, indexes and symbols. The authors show the great variety and flexibility of the signs used by the adult but also by the prelinguistic child. They also evidence different types of sign mixity. Peirce described a sign mixity which implies that the uses of signs is never pure but that a given sign may comprise elements of other signs and thus may belong to different sign classes. Here a second type of mixity is demonstrated which can be specified by the simultaneous occurence of sign configurations or estellas belonging to different semiotic repertoires. These may be implemented by the child or the adult or by both within the interaction.     

Letter coding affects movement production in word writing: an English–Italian cross-linguistic study

Reading and Writing - The present research is a cross-linguistic study indicating that the timing of motor production not only depends on the shape of a letter and the activation of its motor...     

The Participation Paradigm in Audience Research

As today's media simultaneously converge and diverge, fusing and hybridizing across digital services and platforms, some researchers argue that audiences are dead—long live the user! But for others, it is the complex interweaving of continuities and changes that demands attention, especially now that audiencing has become a vital mode of engaging with all dimensions of daily life. This article asks how we should research audiences in a digital networked age. I argue that, while many avenues are being actively pursued, many researchers are concentrating on the notion of participation, asking, on the one hand, what modes of participation are afforded to people by the particular media and communication infrastructures which mediate social, cultural or political spheres of life? And, on the other hand, how do people engage with, accede to, negotiate or contest this as they explore and invent new ways of connecting with each other through and around media? The features of this emerging participation paradigm of audience research are examined in this article.     

Preservice Teachers' Beliefs About Childhood: Challenges for a Participatory Early Childhood Education?

This study examines preservice teachers' beliefs about childhood in an attempt to see how they may support an active, participatory role for children in early childhood education (ECE). Three hundred sixteen early childhood preservice teachers described childhood characteristics and children's ability for decision-making in a written text. These texts were content analyzed and then quantified. Preservice teachers' beliefs about childhood were found to vary and some of their beliefs corresponded to existing scientific theories and typologies. Despite this variation, preservice teachers' beliefs had dominant ontological and epistemological presuppositions that highlighted childhood as a homogeneous period of human life, as a state of being, rather than as a dynamic and developing period of life. The majority of preservice teachers assigned children with an ability to make decisions but only under specific preconditions. We argue that these beliefs may act as obstacles for the enhancement of participatory processes in ECE due to their ontological and epistemological underpinnings. Implications of current findings in relation to teacher education are discussed.     

Case Method in the Teaching of Food Safety

One of the fundamental aims of education is the integration of theory and practice. The case method is a teaching strategy in which students must apply their knowledge to solve real‐life situations. They have to analyze the case described and propose the best possible solution. Although the case may be written, the use of new information and communication technologies can develop the case plan in ways that would achieve greater realism and widen the possibilities for discussion. This paper describes our experience in implementing the case method to teach food safety in the Chair of Hygiene. At first this methodology was used to improve the teaching of good practices in food preparation, later practical work was implemented where small groups of students designed and carried out the microbiological analysis of suspected food. This practical work was presented online as a multimedia activity; students were given face‐to‐face and on‐line tutoring. Evaluation was based both on students’ performance and on a survey they had to answer. More than 92% of students regarded the methodology used for the understanding of the unit as sound. Professors collaboration on providing guidance and multimedia presentation were also positively assessed. The bringing together of face‐to‐face and virtual tasks and small‐group discussion of cases under professors guidance contributed to making good use of the positive aspects of this methodology in order to improve the understanding of problems which do not always have a single answer.     

Characteristics of extracurricular physical activity and cognitive performance in adolescents. The AVENA study

Abstract

The aim of this report was to examine the associations between some characteristics (i.e., structure and number) of extracurricular physical activity (EPA) and cognitive performance in adolescents. A total of 1662 adolescents (880 girls; 13.0–18.5 years) from 5 Spanish cities (Granada, Madrid, Murcia, Santander and Zaragoza) were included in this study. Structure (organised and non-organised) and number of EPAs, and participation at vigorous intensity during EPA were self-reported. Cognitive performance (verbal, numeric and reasoning abilities, and an overall score) was measured with the “SRA-Test of Educational Ability”. Results showed that vigorous EPA was positively associated with all cognitive variables. Adolescents who practiced an organised EPA had higher scores in 3 of the 4 cognitive variables than those who practiced a non-organised EPA (all P < 0.05). Likewise, the group who participated in more than one EPA had higher cognitive performance in all variables than the group who participated in only one EPA (all P < 0.05). Regardless of potential confounder variables, including vigorous EPA, both structure and number of EPAs were each other independently associated with cognitive performance. Therefore, structure and number of EPAs may positively influence cognitive performance in adolescents. Participating in multiple, organised EPA may have benefits for cognitive performance.     

Vitamin C supplementation does not influence plasma and blood mononuclear cell IL-6 and IL-10 levels after exercise

Abstract

The aim of this study was to determine whether the highest vitamin C supplementation associated with complete bioavailability influences the plasma and blood mononuclear cell IL-6 and IL-10 response to exercise. A double-blinded study of supplementation with vitamin C was performed. After 15 days of supplementation with vitamin C (500 mg · day^?1, n = 16) or a placebo (n = 15), participants in the study completed a 15-km run competition. Blood samples were taken before and after competition. Oxidative stress markers, antioxidants, cortisol, IL-6 and IL-10 were determined in plasma or serum. IL-6 and IL-10 protein and mRNA levels were measured in blood mononuclear cells. Although higher plasma and blood mononuclear cell vitamin C levels were observed in the supplemented group when compared with the placebo one, the two groups showed identical exercise-induced changes in all the measured parameters. Exercise induced increased IL-6 and IL-10 levels in plasma and blood mononuclear cells. IL-6 and IL-10 mRNA levels in blood mononuclear cells increased after the competition. After recovery, IL-6 mRNA returned to basal levels and IL-10 mRNA levels remained elevated. In conclusion, exercise induced increased IL-6 and IL-10 production in blood mononuclear cells. However, vitamin C supplementation did not influence IL-6 and IL-10 response to exercise.