Compensatory changes in physical activity and sedentary time in children and adolescents with cystic fibrosis

Physical activity (PA) is a key element in Cystic Fibrosis (CF) treatment strategies, yet little is known as to whether activity compensation occurs. This study examined whether PA and/or sedentary time on one day were temporally associated with time spent in these intensities the following day in youth with CF. Time spent sedentary and in different PA intensities were objectively-measured for seven consecutive days in 50 youth (22 boys; 12.0 ± 2.7 years); 25 with mild-to-moderate CF and 25 age- and sex-matched controls. Multilevel analyses (day and child) were conducted using generalised linear latent and mixed models. On any given day, every additional 10 minutes spent in sedentary time or moderate-to-vigorous physical activity (MVPA) were associated with 1.9 (95%CI: ?3.6 to ?1.2) and 12.4 (95%CI: ?22.1 to ?2.9) minutes less sedentary time the following day, respectively. These temporal associations were also observed when split by group (3.1 vs. 1.9 minutes for healthy and CF, respectively). These findings indicate that youth do not compensate their PA, irrespective of disease status, between days, but may compensate their sedentary time between days. Experimental studies are warranted to fully elucidate whether compensatory responses to PA and sedentary time occur, which is fundamental for informing PA promotion strategies.     

“All for One and One for All?” - Knowledge broker roles in managing tensions of internal coopetition: The Ubisoft case

Coopetition, i.e., cooperation between competing actors, has become a pervasive strategy for innovative firms. The primary focus of studies investigating coopetition centers on inter-firm relationships, highlighting the benefits, limits and configurational patterns of cooperative relationships between competing firms. Only a small, emerging group of studies seeks to extend the concept to the intra-firm level, stressing the existence and effects of competition and cooperation between units that are part of the same organization. This paper contributes to this latter group by investigating the effects of internal coopetition on knowledge and innovation sharing and highlighting the fundamental role of knowledge brokers in managing the resulting tensions. Based on a qualitative case study of the video game publisher Ubisoft, we stress how the tensions raised by internal coopetitive settings limit knowledge sharing between units, and we analyze the mechanisms through which the knowledge broker helps to overcome these limits. We identify three main functions of this knowledge broker that allow the promotion of knowledge and innovation transfer to occur between coopeting units: (1) protecting the unit’s competitive advantage by introducing a lagging principle in the transfer process, (2) reducing sharing costs by standardizing innovative solutions, and (3) enhancing awareness of and trust in innovative solutions by centralizing knowledge diffusion.     

Epistemic beliefs in action: Spontaneous reflections about knowledge and knowing during online information searching and their influence on learning

In the present study it was investigated whether high school students are spontaneously able to reflect epistemologically during online searching for information about a controversial topic. In addition, we examined whether activating epistemic beliefs is related to individual characteristics, such as prior knowledge of the topic and argumentative reasoning skill; also whether learning from the Web is influenced by epistemic beliefs in action and the ability to detect fallacies in arguments. The participants (N = 64) were students of Grade 13, who were asked to think aloud during navigation. Qualitative and quantitative analyses were performed. Findings reveal that most participants spontaneously activated beliefs about all four dimensions identified in the literature, that is, about the simplicity/complexity, certainty/uncertainty, justification, and source of knowledge, at different levels of sophistication. Most epistemic reflections were about the source of knowledge. Two patterns of contextualized epistemic beliefs emerged and significantly influenced learning from the Web, which was also affected by participants' ability to identify argumentative fallacies.     

Development of letter position processing: effects of age and orthographic transparency

This study investigated the relative extent to which developing readers (6‐ and 9‐year‐olds) of English (deep) or Greek (transparent) orthography exhibit serial and exterior letter effects in letter position encoding. Participants were given a visual search task that required detection of a pre‐specified target letter within a random five‐letter string. Stimuli comprised letters either specific to English or Greek, or shared by both orthographies. For native letters, all readers showed significant initial‐letter facilitation. In contrast, final‐letter facilitation was shown only by English children. Furthermore, Greek 9‐year‐olds showed significantly more left‐to‐right facilitation than English 9‐year‐olds. These results suggest that letter position encoding is adaptive to the nature of the orthography acquired during reading development.     

Educational placements and National Curriculum Key Stage 2 test outcomes of children with a history of specific language impairment

As part of their longitudinal investigations of a large cohort with a history of specific language impairment (SLI), Professor Gina Conti-Ramsden and her research team based at the School of Education, University of Manchester, Dr Emma Knox, Dr Nicola Botting and Dr Zoë Simkin report on the changing educational placements and National Curriculum assessment outcomes of 200 children at 11 years. Teacher questionnaires reporting on the Year 6 primary education placements of the sample reveal details about the long-term educational needs of children with SLI.
Furthermore, in exploring the experiences of the sample in the National Curriculum Key Stage 2 tests the present study found that children with SLI perform poorly relative to national expectations of levels of achievement across all tests. At present there are no guidelines for supporting children with SLI in relation to National Curriculum tests and the present data suggests there is an obvious need for these to be developed.     

Conservation of stained glass windows with protective glazing: Main results from the European VIDRIO research programme

The methodology of protecting the European stained glass windows against environmental risk (e.g. meteorological factors, air pollution, microorganisms) by means of an external glazing is not new. In spite of many scientific studies carried out in the last 20 years, some questions were still up for discussion. The European VIDRIO (2002–2005) project gave an answer to these questions. The research carried out by the different project partners established a new multidisciplinary approach aimed at evaluating the efficiency of the protective glazing systems and their effects on stained glass windows conservation, and finally at assessing the most appropriate strategy to preserve stained glass windows. Scientific results showed that the so-called isothermal glazing (i.e. ventilation by the air coming from the inside of the building) protected efficiently the ancient stained glass window from environmental attack (i.e. rain, pollutants, condensation, thermal shocks) with very limited secondary effects. The scientific research highlighted that its efficiency was strongly related to the technical design of the protective system. In particular, the ventilation and the size of the interspace had to be carefully considered. The research developed within the VIDRIO project was turned into general recommendations to the owners and practitioners on the best practice for the stained glass windows future conservation.     

Effect of template shape on metal nanoimprinting: a dislocation dynamics study

Dislocation dynamics simulations are performed to investigate the effect of template shape on the nanoimprinting of metal layers. To this end, metal thin films are imprinted by a rigid template made of an array of equispaced indenters of various shapes, i.e., rectangular, wedge, and circular. The geometry of the indenters is chosen such that the contact area is approximately the same at the final imprinting depth. Results show that, for all template shapes, the final patterns strongly depend on the dislocation activity, and that each imprint differs from the neighboring ones. Large material pile ups appear between the imprints, such that polishing of the metal layer is suggested for application of the patterns in electronics. Rectangular indenters require the lowest imprinting force and achieve the deepest retained imprints.     

Aligning digital and social inclusion: A study of disadvantaged students and computer access

In this paper we discuss the notion of the digital divide and link it with recent policy designed to promote social inclusion in a project that addressed both issues. Families in low socio economic areas of Australia were given computers and Internet access as part of a project that had as its primary aim to support the participation of disadvantaged families in digital activities at home and in schools. The authors collected data over a period of 3 years that included, pre and post surveys with parents and students, interviews with program facilitators, and focus groups with parents. This paper focuses on selected themes that emerged from the interview and focus group data with the parents and explores the ways in which they perceived having the computer had impacted on their lives and those of their school aged children. This data (surveys, interviews and focus groups) reveals that all family members felt that the ownership of a computer enabled them to feel more confident about their active participation in everyday educational, social and community activities. Parents, teachers and students also reported that owning a computer was important to their lives yet they were not naïve to the fact that they still had a lot to learn in terms of using all the options available to them on the computer. Students noted the increased ease with which they could complete school work and communicate with friends in online contexts and outlined some of the ways in which they used the computer for leisure activities. Parents highlighted the increase in their own digital skill levels and described the ways in which their lives had benefitted from having a computer in the home. Problems associated with connectivity at the beginning of the project, the quality of the machines and inadequate initial training were listed as drawbacks to greater participation. The project represents one attempt to address the digital divide and illustrates how going beyond the dichotomy of a ‘haves’ v ‘have nots’ view of the digital divide is necessary if we want to promote social inclusion.     

Social Outcomes Associated With Media Viewing Habits of Low-Income Preschool Children

Research Findings: The purpose of this study was to examine the relationship between preschool children's social outcomes in the classroom (including hyperactivity, aggression, and social skills) and their media viewing habits (including the amount of television they watch and whether they watch videos/movies that are rated as inappropriate for young children). The participants were 92 low-income pre-kindergarten-age children for whom we obtained parent reports of media viewing habits and teacher reports of classroom behavior. The results suggested that viewing of inappropriate content was associated with higher hyperactivity and aggression scores and a lower social skills rating, whereas the amount of viewing was not related to these classroom outcomes. Policy: There has been a great deal of focus on how both the amount and content of television viewed affects social development in middle and later childhood. These studies have helped influence the development of guidelines for parents of young children to limit media viewing. The findings from the present study suggest that school personnel and others should monitor the content of what preschoolers are watching and should educate parents about the potential impact of media viewing on children's classroom behavior.