Decrease in pulmonary diffusion capacity after maximal exercise

Oppression of the chest, cough and orthopnea are well known to occur in some athletes after competitions, maybe reflecting an increase in lung water. In order to indicate if lung water increases after maximal exercise we measured pulmonary diffusion capacity before and 2.1 h after a short maximal arm exercise bout in 11 canoeists and showed a decrease of 6.7%. The result may be explained by a calculated 17% increase in alveolar interstitial volume.     

Reading Literacy Performance in Norway: current practice and critical factors

This qualitative study explored reading literacy performance of Norwegian students (Grades 1–10). Semistandardised interviews were conducted with 36 academics, school administrators, and teachers to investigate reading literacy development, factors associated with literacy performance, and recommendations for improvement. Reading literacy lessons were also observed in 10 classrooms to determine how reading literacy is developed. Data from the International Association for the Evaluation of Educational Achievement study ( Elley, 1994 ) and the Programme for International Student Achievement study ( OECD, 2001 ) were analysed to enrich understanding of the Norwegian literacy situation. Recommendations include greater reading education for teachers, communication and collaboration between stakeholders, engagement and interest in reading, balanced reading instruction, development of linguistic awareness, use of early intervention programmes, explicit strategy instruction, and use of bilingual education.     

Explaining parental coviewing: The role of social facilitation and arousal

This study explores the relationship between parental coviewing and children’s psychophysiological responses to television exposure within a framework of social facilitation. A total of 88 children aged 6–13 years and one of each of their parents participated in a 2 (presence or absence of the parent)?×?2 (exciting or non-exciting TV content) between-subjects experiment. Results indicated that the presence of a coviewing parent was associated with an increase in children’s arousal (higher skin conductance levels) and cognitive resource allocation (lower heart rate), especially for younger children who came from homes where parental coviewing was a relatively frequent activity. These findings suggest that the mere presence of a coviewing parent is sufficient to alter children’s processing of television messages.     

Lesson study in prospective mathematics teacher education: didactic and paradidactic technology in the post-lesson reflection

This paper presents a detailed analysis of the post-lesson reflection, carried out in the context of eight cases of lesson study conducted by teams of Danish, lower secondary prospective teachers and their supervisors. The participants, representing different institutions, were all new to the lesson study format. Nevertheless, it is demonstrated how their interaction shape the development of discourse about mathematical learning. The anthropological theory of the didactic is employed as the theoretical approach to analyse the mathematical and primarily didactical praxeologies developed and discussed during the meetings. The study investigates what happens when lesson study, a well-established Japanese “system” for professional teacher development, is transposed to another educational and cultural context, with the aim of enhancing prospective teacher learning during the practicum of a teacher education programme. The findings highlight significant different positions in the discourse during the post-lesson reflection. Specific practice-related knowledge is developed, to the benefit of prospective teachers, educators and researchers alike. This kind of knowledge is of interest and concern to the whole profession of mathematics teachers and the analysis adds to our insight into the potential of lesson study in prospective education as a meeting place where pertinent actors contribute to the expansion and dissemination of shared professional knowledge.