‘Break the rules or quit the job’: physical education teachers’ experiences of physical contact in their teaching practice

Physical contact between teachers and students in physical education (PE) has been a troubling, complex and unsolved issue. Research has shown that PE teachers struggle with high levels of fear, insecurity and anxiety when it comes to physical contact with students. However, most of the research conducted so far has focused on a few countries and in regard to the dominant no-touch societal discourse related to sexual connotations. Research from other countries on PE-related touch and other non-sexual physical contact topics is still missing from the literature. This paper aims to explore touch within the PE arena in Argentina and France. Data were generated with a group of eight PE teachers, four from France and four from Argentina. Results suggest that even though teachers were well aware of the widely spread discourse regarding sexual harassment, they discussed the concerns of touch in PE in different ways. Touch was considered necessary for both emotional support and the avoidance and treatment of injuries. In some cases, teachers were concerned about the admissibility of touch involving students with religious beliefs, and some acts of violence. The conclusions of this study reveal a shift in the ‘risks’ surrounding teacher-student physical contact, and the less-discussed presence of risks other than those related to sexual implications when considering other countries. The conclusions also revolved around the changes of PE teachers’ professional subjectivities over the last few decades.‘Break the rules or quit the job’: physical education teachers’ experiences of physical contact in their teaching practicepublishedVersio

Physical contact in physical education, sports coaching and the preschool – a scoping review

Physical contact between adults and children in educational setting has been a well debated subject in research over the past 20 years. Although physical contact is often regarded as an important pedagogical tool, it has given rise to an increased awareness amongst sports coaches, physical education and preschool teachers about the possible negative consequences of its use in these settings. The aim of this article is to map the current literature on physical contact in physical education, sports coaching and the preschool and identify research gaps by means of a scoping review, i.e. after 20 years of research in the field of intergenerational touch what can be said to be known in the field and what possible gaps are there in the research? The research questions are: (i) Which journals, countries, settings, theories and methods are represented in the research field? (ii) Which central themes and knowledge gaps can be identified? The results show that the research field has expanded significantly in the last 20 years, both in terms of the number of published articles, the number of countries represented in the research and the number of journals in which articles on the topic have been published. The central themes identified in the articles included in the review cover the following topics: fears related to physical contact, resistance, cultural differences, the functions and needs of physical contact and the professional identity of sports coaches, physical education and preschool teachers. It is concluded that studies that could lead the research field forward would ideally focus on intersectionality, or how practitioners’ fears of physical contact impact their pedagogical work with students.Physical contact in physical education, sports coaching and the preschool – a scoping reviewpublishedVersio

Demographically adjusted Rey–Osterrieth Complex Figure Test norms in a Swedish and Norwegian cohort aged 49–77 years and comparison with North American norms

Introduction The Rey–Osterrieth Complex Figure Test (RCFT) is one of the most commonly used neuropsychological tests in Sweden and Norway. However, no publications provide normative data for this population. The objective of this study was to present demographically adjusted norms for a Swedish and Norwegian population and to evaluate these in an independent comparison group. Methods The RCFT was administrated to 344 healthy controls recruited from the Swedish Gothenburg MCI study, the Norwegian Dementia Disease Initiation study, and the Swedish Cardiopulmonary Bioimage Study. Age ranged from 49 to 77 years (mean = 62.4 years, SD = 5.0 years), and education ranged from 6 to 24 years (mean = 13.3 years, SD = 3.0 years). Using a regression-based procedure, we investigated the effects of age, sex, and years of education on test performance. We compared and evaluated our Swedish and Norwegian norms with North American norms in an independent comparison group of 145 individuals. Results In healthy controls, age and education were associated with performance on the RCFT. When comparing normative RCFT performance in an independent comparison group, North American norms generally overestimated immediate and delayed recall performance. In contrast, our Swedish and Norwegian norms appear to better take into account factors of age and education. Conclusions We presented demographically adjusted norms for the RCFT in a Swedish and Norwegian sample. This is the first normative study of the RCFT that presents normative data for this population. In addition, we showed that North American norms might produce inaccurate normative estimations in an independent comparison group

Recognition and coupling of A-to-I edited sites are determined by the tertiary structure of the RNA

Adenosine-to-inosine (A-to-I) editing has been shown to be an important mechanism that increases protein diversity in the brain of organisms from human to fly. The family of ADAR enzymes converts some adenosines of RNA duplexes to inosines through hydrolytic deamination. The adenosine recognition mechanism is still largely unknown. Here, to investigate it, we analyzed a set of selectively edited substrates with a cluster of edited sites. We used a large set of individual transcripts sequenced by the 454 sequencing technique. On average, we analyzed 570 single transcripts per edited region at four different developmental stages from embryogenesis to adulthood. To our knowledge, this is the first time, large-scale sequencing has been used to determine synchronous editing events. We demonstrate that edited sites are only coupled within specific distances from each other. Furthermore, our results show that the coupled sites of editing are positioned on the same side of a helix, indicating that the three-dimensional structure is key in ADAR enzyme substrate recognition. Finally, we propose that editing by the ADAR enzymes is initiated by their attraction to one principal site in the substrate

The RNA-Editing Enzyme ADAR1 Controls Innate Immune Responses to RNA

The ADAR RNA-editing enzymes deaminate adenosine bases to inosines in cellular RNAs. Aberrant interferon expression occurs in patients in whom ADAR1 mutations cause Aicardi-Goutières syndrome (AGS) or dystonia arising from striatal neurodegeneration. Adar1 mutant mouse embryos show aberrant interferon induction and die by embryonic day E12.5. We demonstrate that Adar1 embryonic lethality is rescued to live birth in Adar1; Mavs double mutants in which the antiviral interferon induction response to cytoplasmic double-stranded RNA (dsRNA) is prevented. Aberrant immune responses in Adar1 mutant mouse embryo fibroblasts are dramatically reduced by restoring the expression of editing-active cytoplasmic ADARs. We propose that inosine in cellular RNA inhibits antiviral inflammatory and interferon responses by altering RLR interactions. Transfecting dsRNA oligonucleotides containing inosine-uracil base pairs into Adar1 mutant mouse embryo fibroblasts reduces the aberrant innate immune response. ADAR1 mutations causing AGS affect the activity of the interferon-inducible cytoplasmic isoform more severely than the nuclear isoform

Ash agglomeration and deposition during combustion of poultry litter in a bubbling fluidized-bed combustor

peer-reviewedn this study, we have characterized the ash resulting from fluidized bed combustion of poultry litter as being dominated by a coarse fraction of crystalline ash composed of alkali-Ca-phosphates and a fine fraction of particulate K2SO4 and KCl. Bed agglomeration was found to be coating-induced with two distinct layers present. The inner layer (0.05–0.09 mm thick) was formed due to the reaction of gaseous potassium with the sand (SiO2) surface forming K-silicates with low melting points. Further chemical reaction on the surface of the bed material strengthened the coating forming a molten glassy phase. The outer layer was composed of loosely bound, fine particulate ash originating from the char. Thermodynamic equilibrium calculations showed slag formation in the combustion zone is highly temperature-dependent, with slag formation predicted to increase from 1.8 kg at 600 °C to 7.35 kg at 1000 °C per hour of operation (5.21 kg of ash). Of this slag phase, SiO2 and K2O were the dominant phases, accounting for almost 95%, highlighting the role of K-silicates in initiating bed agglomeration. The remaining 5% was predicted to consist mainly of Al2O3, K2SO4, and Na2O. Deposition downstream in the low-temperature regions was found to occur mostly through the vaporization–condensation mechanism, with equilibrium decreasing significantly with decreasing temperatures. The dominant alkali chloride-containing gas predicted to form in the combustion zone was KCl, which corresponds with the high KCl content in the fine baghouse ash