Identification of cellulose nitrate X-ray film for the purpose of conservation: Organic elemental analysis

Cellulose nitrate was widely used as a film base for photography, cinematography, and radiography in the first half of the twentieth century. Its stability is inherently poor and subject to environmental storage conditions. The risk of fire and the cross-infection effect on the cellulose acetate film stored at the same location necessitate that cellulose nitrate is identified within collections and stored separately. Not only medical archives, but also museums using radiography in their research may hold a sizeable amount of historical X-ray films. The Natural History Museum, London has been using film for X-radiography since before World War II. This suggests that some of the X-ray materials in its collections have a cellulose nitrate rather than ‘safety’ (cellulose acetate or polyester) film base. X-ray sheets rarely contain information related to their composition so science-based identification methods must be used. We propose the determination of nitrogen content in the film by organic elemental analysis (OEA) as a reliable method for the identification of films (X-ray, photographic, or cinematographic) with a cellulose nitrate base. Though it is a destructive method, the sample size required is small (<1?mg). This method does not require any sample preparation apart from weighing the samples and wrapping them in tin foil. OEA proved to be more accurate than the ‘float’ test in trichloroethylene and quicker and more straightforward to perform than infrared spectroscopy.     

Twitter,Team GB and the Australian Olympic Team: representations of gender in social media spaces

Twitter is used by athletes, sporting teams and sports media to provide updates on the results of sporting events as they happen. Unlike traditional forms of sports media, online sports media offers the potential for diverse representations of athletes. The current study examined gender in social media coverage of the 2016 Olympic Games using a third wave feminist lens. The analysis focused on the Twitter pages of ‘Team GB’ and the ‘Australian Olympic team’ and the sports stories and images posted during the Rio Olympic Games. Despite a number of traditional differences in the ways that male and females were represented being present, such as the presence of ‘active’ images of male athletes accompanying sports stories and the presence of infantalization in the language used to represent female performers, this analysis demonstrated significant strides forward in terms of the quantity of coverage received by women in online spaces. It further highlights virtual platforms as dynamic spaces for the representation of women athletes.     

Physiological load associated with a Zumba® fitness workout: a comparison pilot study between classes and a DVD

The objectives were to compare the metabolic load elicited by Zumba^® classes and DVD workouts and link the physiological responses to participants’ psychological characteristics. Fifteen women (25.4 ± 4.3 years old; 164.9 ± 5.1 cm; 56.9 ± 5.8 kg; 23.9 ± 4.9% body fat) performed three Zumba^® classes and three Zumba^® DVD workouts using a repeated measure design. Energy expenditure was assessed by extrapolating oxygen cost from heart rate (HR) using regressions from a preliminary incremental running test. Differences between Zumba^® classes and Zumba^® DVD workouts were assessed by Student’s T tests and repeated measures analysis of variance and correlations between physiological and psychological variables by the Pearson’s coefficient. Results showed that Zumba^® classes allowed greater energy expenditure compared to Zumba^® DVD workouts (6.8 ± 0.9 vs 5.6 ± 0.9 kcal · min^?1, 95% confidence interval (CI) limits: 0.3–2.1, P = 0.016), with significant differences in the time spent with a HR above 85% of HR reserve (14.7 vs 1.7%, 95% CI: 5.6–20.4, P = 0.021). Furthermore, women with a greater autonomy score showed a smaller difference between DVD and class (r = 0.511, P = 0.048), while greater differences were shown in women with greater interpersonal skills (r = ?0.563, P = 0.028). The results suggest that while both types of workouts are suitable to maintain fitness Zumba^® classes allow greater energy expenditure.     

Effects of increasing and decreasing physiological arousal on anticipation timing performance during competition and practice

The aim of this study was to investigate if the effects of changes in physiological arousal on timing performance can be accurately predicted by the catastrophe model. Eighteen young adults (8 males, 10 females) volunteered to participate in the study following ethical approval. After familiarisation, coincidence anticipation was measured using the Bassin Anticipation Timer under four incremental exercise conditions: Increasing exercise intensity and low cognitive anxiety, increasing exercise intensity and high cognitive anxiety, decreasing exercise intensity and low cognitive anxiety and decreasing exercise intensity and high cognitive anxiety. Incremental exercise was performed on a treadmill at intensities of 30%, 50%, 70% and 90% heart rate reserve (HRR) respectively. Ratings of cognitive anxiety were taken at each intensity using the Mental Readiness Form 3 (MRF3) followed by performance of coincidence anticipation trials at speeds of 3 and 8 mph. Results indicated significant condition × intensity interactions for absolute error (AE; p = .0001) and MRF cognitive anxiety intensity scores (p = .05). Post hoc analysis indicated that there were no statistically significant differences in AE across exercise intensities in low–cognitive anxiety conditions. In high–cognitive anxiety conditions, timing performance AE was significantly poorer and cognitive anxiety higher at 90% HRR, compared to the other exercise intensities. There was no difference in timing responses at 90% HRR during competitive trials, irrespective of whether exercise intensity was increasing or decreasing. This study suggests that anticipation timing performance is negatively affected when physiological arousal and cognitive anxiety are high.     

Teenage Kicks: Exploring cultural value from a youth perspective

In contemporary accounts of cultural value, young people's perspectives are often restricted to analyses of their encounters with formal cultural institutions or schools or to debates surrounding the cultural implications of new digital spaces and technologies. Other studies have been dominated by instrumental accounts exploring the potential economic benefit and skills development facilitated by young people's cultural encounters and experiences. In this paper we examine the findings of a nine month project, which set out to explore what cultural value means to young people in Bristol. Between October 2013 and March 2014, the Arts and Humanities Research Council “Teenage Kicks” project organised 14 workshops at 7 different locations across the city, with young people aged 11–20. Working in collaboration with a network of cultural and arts organisations, the study gathered a range of empirical data investigating the complex ecologies of young people's everyday/“lived” cultures and values. Young people's own accounts of their cultural practices challenge normative definitions of culture and cultural value but also demonstrate how these definitions act to reproduce social inequalities in relation to cultural participation and social and cultural capital. The paper concludes that cultural policy-makers should listen and take young people's voices seriously in re-imaging the city's cultural offer for all young people.     

Developing tests of impaired coordination for Paralympic classification: normative values and test–retest reliability

Current methods of assessing coordination in Paralympic classification are non-instrumented and are based on ordinal scales of measurement and therefore impede the development of evidence-based methods of classification. This paper describes an instrumented battery of tests that measure impaired coordination in a way that will permit evidence-based classification. Test–retest reliability and normative values for each of the tests are reported. Twenty participants visited the laboratory on two occasions, each time completing 11 tests: three running-specific, lower-limb reciprocal tapping tests (yielding five outcome measures); four throwing-specific, upper-limb discrete tapping tests (yielding four outcome measures); and four wheelchair-specific, upper-limb reciprocal tapping tests yielding seven outcome measures. Reliability was evaluated using Intra-class Correlation Coefficients (ICCs), Standard Error of Measurement, Limits of Agreement and Paired t-tests. ICCs for fourteen of the 16 outcome measures were excellent (ICC ≥ 0.80), although systematic bias was evident in two of these—a unilateral, running-specific lower-limb tests on the non-dominant side, and a unilateral wheelchair-specific upper limb test on the dominant side. ICCs for two tests—a bilateral wheelchair-specific upper limb test (0.74), and a unilateral wheelchair-specific upper limb test on the non-dominant side (0.54)—were good and fair respectively. Results indicate that 12 of the measures evaluated have measurement properties that will facilitate the development of evidence-based methods of Paralympic classification in athletics. Positional adjustment and increased familiarization may improve reliability in the other four. Studies evaluating reliability of this test battery in people with coordination impairments are warranted.     

City of London School and Communities that Care: Researching Pupil Experience to Inform Policy and Practice in the Independent Sector

This article is an account of the decision by an independent school to participate in its local Healthy Schools Scheme. One of the factors that influenced this decision was the value the school gained from a pupil survey. The same survey was used to track the impact of the school's Personal, Social and Health Education curriculum and pastoral work on pupils' experience of the school, and academic achievement. In particular, the authors explore the role of survey analysis and consultancy advice in interpreting survey results and developing school practice. The survey contributed to pupil participation in school development. The use of an external consultant as critical friend was perceived as an aid to school reflection and self-review.     

Using the Opinions and Lifestyle Survey to examine the prevalence and characteristics of families who home educate in the UK

This paper has two aims, first to examine the feasibility of using an omnibus survey to estimate the prevalence and characteristics of families who home educate and secondly to provide an empirical contribution to recent research on home education in the UK. Because there is no statutory requirement for families who home educate to register with the Local Authority, there are no nationally representative data on the prevalence and characteristics of the home educating population in this country. Therefore gathering data from a fully randomised sample of home educating families would be prohibitively expensive. In this study we used a national omnibus survey to collect data on the homeschooling experiences of over 6000 households from across the UK, of whom 52 were found to have engaged in homeschooling. Our findings estimate that around 1% of families with dependent children have home educated either on a full or part-time basis. Provision of home education was often episodic and reflects the diversity of the home educating population. While the findings presented here largely confirm previous work on home education in the UK, other work tends to be based largely in the home educating community and often lacks a comparison with the general population. Using an omnibus survey like the Opinions and Lifestyle Survey enables researchers to gather data from a nationally representative sample of a small and diverse social group.