Greater basal skeletal muscle AMPKα phosphorylation in men than in women: Associations with anaerobic performance

Objectives: This study was designed to investigate the association of gender, fibre type composition, and anaerobic performance with the basal skeletal muscle signalling cascades regulating muscle phenotype. Design: Muscle biopsies were obtained from 25 men and 10 women all young and healthy. Methods. Protein phosphorylation of Thr¹⁷²AMPKα, Ser²²¹ACCβ, Thr²⁸⁶CaMKII as well as total protein abundance of PGC-1α, SIRT1, and CnA were measured by Western blot and anaerobic performance by the Wingate test. Results: Percent type I myosin heavy chain (MHC I) was lower in men (37.1?±?10.4 vs. 58.5?±?12.5, P?P?P?221ACCβ and Thr²⁸⁶CaMKII fractional phosphorylation tended to be higher in men (P?=?.1). PGC1-α and SIRT1 total protein expression was similar in men and women, whereas CnA tended to be higher in men (P?=?.1). Basal AMPKα phosphorylation was linearly related to the percentage of MHC I in men (r?=?0.56; P?Conclusion: In summary, skeletal muscle basal AMPKα phosphorylation is higher in men compared to women, with no apparent effect on anaerobic performance.     

Association of physical fitness and fatness with cognitive function in women with fibromyalgia

This study assessed the association of fitness and fatness with cognitive function in women with fibromyalgia, and the independent influence of their single components on cognitive tasks. A total of 468 women with fibromyalgia were included. Speed of information processing and working memory (Paced Auditory Serial Addition Task), as well as immediate and delayed recall, verbal learning and delayed recognition (Rey Auditory Verbal Learning Test) were assessed. Aerobic fitness, muscle strength, flexibility and motor agility were assessed with the Senior Fitness Test battery. Body mass index, percent body fat, fat-mass index and waist circumference were measured. Aerobic fitness was associated with attention and working memory (all, p < 0.05). All fitness components were generally associated with delayed recall, verbal learning and delayed recognition (all, p < 0.05). Aerobic fitness showed the most powerful association with attention, working memory, delayed recall and verbal learning, while motor agility was the most powerful indicator of delayed recognition. None of the fatness parameters were associated with any of the outcomes (all, p > 0.05). Our results suggest that fitness, but not fatness, is associated with cognitive function in women with fibromyalgia. Aerobic fitness appears to be the most powerful fitness component regarding the cognitive tasks evaluated.     

Proofs produced by secondary school students learning geometry in a dynamic computer environment

As a key objective, secondary school mathematics teachers seek to improve the proof skills of students. In this paper we present an analytic framework to describe and analyze students' answers to proof problems. We employ this framework to investigate ways in which dynamic geometry software can be used to improve students' understanding of the nature of mathematical proof and to improve their proof skills. We present the results of two case studies where secondary school students worked with Cabri-Géeomèetre to solve geometry problems structured in a teaching unit. The teaching unit had theaims of: i) Teaching geometric concepts and properties, and ii) helping students to improve their conception of the nature of mathematical proof and to improve their proof skills. By applying the framework defined here, we analyze students' answers to proof problems, observe the types of justifications produced, and verify the usefulness of learning in dynamicgeometry computer environments to improve students' proof skills.This revised version was published online in September 2005 with corrections to the Cover Date.     

Evaluation of the University Teaching/Learning Process for the Improvement of Quality in Higher Education

This paper presents a proposal for the evaluation of the university teaching/ learning process, using indicators which are appropriate for activities developed in this process and aimed at its improvement and optimization. This analysis is carried out using the Instructional Model of the Educational Situation (MISE) developed by Rivas (1993, 1997). The data obtained from the application of questionnaires (MISE-teacher and MISE-student) in a specific instructional university process enables a contrast to be made between teacher and students' perception of the process being followed, as well as to capture the various students' perceptions and motivations throughout the course. The teacher can also obtain information on the strong and weak points of the process being developed and therefore propose improvements for future teaching/learning processes. In this way, the MISE becomes a useful tool for the formative evaluation of university teachers.     

‘Let's go outside’: Icelandic teachers' views of using the outdoors

This article discusses the views of 25 Icelandic preschool and compulsory school teachers who were interviewed on the role of the outdoor environment in children's learning. The teachers reported not being afraid to take children outside. These teachers valued the learning potentials of the outdoors more than they feared the possible risks. They believed that the outdoors could provide opportunities for (a) enhancing children's play and learning (b) promoting children's health, well-being, and courage, and (c) affecting children's views, knowledge, and actions towards sustainability.     

Improving preservice teachers’ scientific argumentative writing through epistemic practices: a learning progression approach

Improving preservice teachers’ argumentative competence is a social and educational imperative. This study focuses on the contribution of a sequence of learning tasks, designed as epistemic practices and following a learning progression approach, to enhancing student teachers’ scientific argumentative writing. The participants were 47 preservice primary teachers who enrolled in a Developmental Psychology course, and one lecturer. Preservice teachers progressively acquired the vast majority of aspects involved in scientific argumentative writing. The most important difficulties experienced by the preservice teachers revolved around intertextuality and the creation of theses. Key conclusions on this teacher education experience are presented in the final section of the paper.     

Roma Undergraduates’ Personal Network in the Process of College Transition. A Social Capital Approach

Roma university students’ personal networks become unstable in the process of college transition. We describe the personal networks of these students using the model set up by Brandes et al. (in: Proceedings of the IEEE pacific visualization symposium (Pacific Vis’08), IEEE Computer Society Press, 2008) and analyse the identified groups utilizing the social capital approach. We mapped seventy-six students’ networks applying contact diary. Origin, host and fellow groups significantly differ in their composition; they provide different (‘bonding’ or ‘bridging’) type of resources, and their availability to the Roma students is also different. We found significant differences between the students in their tendency to rely on certain groups in the process of academic adjustment.

     

Longitudinal Trajectories of Family Functioning Among Recent Immigrant Adolescents and Parents: Links With Adolescent and Parent Cultural Stress,Emotional Well-Being,and Behavioral Health

This study examined longitudinal effects of adolescent and parent cultural stress on adolescent and parent emotional well-being and health behaviors via trajectories of adolescent and parent family functioning. Recent immigrant Latino adolescents (M_age = 14.51) and parents (M_age = 41.09; N = 302) completed measures of these constructs. Latent growth modeling indicated that adolescent and parent family functioning remained stable over time. Early levels of family functioning predicted adolescent and parent outcomes. Baseline adolescent cultural stress predicted lower positive adolescent and parent family functioning. Latent class growth analyses produced a two-class solution for family functioning. Adolescents and parents in the low family functioning class reported low family functioning over time. Adolescents and parents in the high family functioning class experienced increases in family functioning.     

‘I think we are still very directive’: Teachers’ discourses on democratic student participation

The objective of this study [Susinos, T. (Dir.), ‘Schools moving towards inclusion: Learning from the local community, the student voice and educational support’ (I+D+I, EDU2011-29928-C03-03)] is to gain a deeper understanding of the analysis of the discourses that different education professionals in the Spanish education system have on student participation in schools, based on the premise that they tacitly reflect different models of democracy and advance very diverse school practices. The study is based on the Student Voice Movement, which is defined by its commitment to deliberative democratic education and its role in the development of inclusive schools. In this article, we have conducted a qualitative analysis of the data from 31 in-depth interviews carried out with teachers and other education professionals from nine schools. These teachers’ discourses are summarised in four dimensions, which we have named individual, pedagogical, organisational and socio-political. Some conclusions of this work demonstrate a predominance of discourses linked to an individual and pedagogical dimension of participation, based on the idea that this fundamentally depends on the personal dispositions that some students have. It is less common to appeal to the socio-political dimension, which refers to participation as a citizen's right to debate and make decisions regarding common and public affairs. This suggests that teachers still see their work from a technical point of view, rather than envisaging the school as a space for democratic participation and practice. In short, with this study we aim to contribute to normative theories on participation and democracy in order to expand their empirical and practical support in schools.     

The influence of trait meta-mood on subjective well-being in high school students: a random intercept cross-lagged panel analysis

Trait meta-mood refers to people’s conscious awareness of their own emotions. This reflexive process is relevant to developing a better adaptation to the environment, understanding the individual differences in how people perceive and attend to emotions, and how they can understand and regulate them in an optimal way. Previous research has indicated that trait meta-mood plays an important role in well-being. Accordingly, the main objective of this study was to analyse the prospective effects of trait meta-mood on levels of subjective well-being. A sample of 570 high school students (289 females), from 12 to 17 years (M?=?13.80, SD?=?1.45), completed measures of trait meta-mood, satisfaction with life, and positive and negative mood states across three waves separated by 1-year intervals. Random intercept cross-lagged panel analyses indicated that the dimensions of meta-mood accounted for a significant amount of variance in both cognitive and affective dimensions of well-being across time.