#Ihaveembraced: A pilot cross-sectional naturalistic evaluation of the documentary film Embrace and its potential associations with body image in adult women

© 2020 The Author(s). Background: The aim of this project was to examine the qualitative responses of adult women who had seen the feature-length documentary film 'Embrace'. In addition, to establish the potential for the documentary to be used as an intervention to improve adult body image, a naturalistic study was conducted to examine whether any differences on measures of body image were apparent among women who had, versus those who had not, seen the film. Method: Participants were 1429 women aged 18-77 who were members of the Facebook group 'Body Image Movement' facilitated by Taryn Brumfitt, who also directed the documentary Embrace. Participants completed a cross-sectional online questionnaire regarding whether they had seen the film, their perceptions of the impact of the film on their lives and body image, and a range of standardized scales measuring psychological wellbeing. Results: Overall, the majority of participants had seen the film (n = 1053, 73.7%). Qualitative analysis of open-ended data asking about the changes participants made after viewing the film revealed that a large proportion (44.1%) felt they had higher levels of body appreciation and body confidence, many reported engaging less in dieting (19.6%), and some reported lowered disordered eating (2.8%), since seeing Embrace. Women who had seen the film also reported significantly higher levels of body appreciation (Body Appreciation Scale; medium effect size), and significantly lower levels of internalization of body ideals, self-objectification, body shame, and dietary restraint, than women who had not seen the film. Conclusions: Adult women reported numerous positive responses to their viewing of the film. Future experimental research should explore the efficacy of Embrace as a brief and engaging intervention for improving body image in adult women

Understanding variation in men’s help-seeking for cancer symptoms: a semi-structured interview study

Men appear more likely to delay seeking medical advice for cancer symptoms, resulting in later stage at diagnosis and poorer health outcomes. Limited research has investigated variation in men’s experiences of and responses to cancer symptoms. This study examined the psychosocial aspects of men’s help-seeking for cancer symptoms, as well as potential variation across men residing in urban and rural Australia. Semi-structured interviews were conducted with men recently diagnosed with cancer (n=13). Participants’ partners (n=8) were recruited to enable data triangulation. Interview schedules addressed participants’ pathway to cancer treatment, cancer knowledge, masculinity, and rural living. A theoretical thematic analysis approach was used. Medical help-seeking behaviour was similar for participants residing in urban and rural areas. Five key themes and one sub-theme were identified, including: symptom factors, traditional masculine norms (sub-theme: women’s health-related responsibilities), level of concern, conflicting responsibilities and access, and trust in medical professionals. Participants from rural Australia experienced greater access difficulties and noted optimism regarding symptoms. Results highlight important within-gender differences in the psychosocial barriers to help-seeking for cancer symptoms. Future research should further explore variation between men and test the predictive strength of factors

"fitspiration" on social media: a content analysis of gendered images

Background: “Fitspiration” (also known as “fitspo”) aims to inspire individuals to exercise and be healthy, but emerging research indicates exposure can negatively impact female body image. Fitspiration is frequently accessed on social media; however, it is currently unclear the degree to which messages about body image and exercise differ by gender of the subject. Objective: The aim of our study was to conduct a content analysis to identify the characteristics of fitspiration content posted across social media and whether this differs according to subject gender. Methods: Content tagged with #fitspo across Instagram, Facebook, Twitter, and Tumblr was extracted over a composite 30-minute period. All posts were analyzed by 2 independent coders according to a codebook. Results: Of the 415/476 (87.2%) relevant posts extracted, most posts were on Instagram (360/415, 86.8%). Most posts (308/415, 74.2%) related thematically to exercise, and 81/415 (19.6%) related thematically to food. In total, 151 (36.4%) posts depicted only female subjects and 114/415 (27.5%) depicted only male subjects. Female subjects were typically thin but toned; male subjects were often muscular or hypermuscular. Within the images, female subjects were significantly more likely to be aged under 25 years (P<.001) than the male subjects, to have their full body visible (P=.001), and to have their buttocks emphasized (P<.001). Male subjects were more likely to have their face visible in the post (P=.005) than the female subjects. Female subjects were more likely to be sexualized than the male subjects (P=.002). Conclusions: Female #fitspo subjects typically adhered to the thin or athletic ideal, and male subjects typically adhered to the muscular ideal. Future research and interventional efforts should consider the potential objectifying messages in fitspiration, as it relates to both female and male body image.Elise Rose Carrotte, Ivanka Prichard, Megan Su Cheng Li

Reactive plasma atomization of aluminum nitride powder

Experiments were performed to synthesize AlN powders by reacting Al with N using a conventional dc arc plasma as heat source. Feeding Al powder into Ar/N plasma open to atmosphere produced mainly Al oxide. Experiments using a chamber backfilled with nitrogen suppressed the Al oxide, but little AlN was formed. A furnace and crucible assembly was designed to feed molten Al directly into a DeLaval nozzle attached to the face of the dc arc plasma gun. Resulting submicron powders show a significant increase in AlN formation. This was dependent on chamber pressure, plasma velocity, and molten liquid feed rate. Experimental parameters, equipment design, effects of atomization/vaporization/condensation are discussed

Taxing the Informal Economy: The Current State of Knowledge and Agendas for Future Research

This paper reviews the literature on taxation of the informal economy, taking stock of key debates and drawing attention to recent innovations. Conventionally, the debate on whether to tax has frequently focused on the limited revenue potential, high cost of collection, and potentially adverse impact on small firms. Recent arguments have increasingly emphasised the more indirect benefits of informal taxation in relation to economic growth, broader tax compliance, and governance. More research is needed, we argue, into the relevant costs and benefits for all, including quasi-voluntary compliance, political and administrative incentives for reform, and citizen-state bargaining over taxation

Predicting men’s intentions to seek help for cancer symptoms: a comparison of the Theory of Planned Behaviour and the Health Belief Model

Objective: Targeted behavioural interventions are needed to address psychosocial factors leading to slower help-seeking for cancer symptoms among men. This study compared the variance in men’s help-seeking intentions explained by the Theory of Planned Behaviour and Health Belief Model. Method: A cross-sectional survey of 127 men was conducted, testing symptom knowledge and theory-derived constructs from the Theory of Planned Behaviour (attitudes, perceived norms, perceived behavioural control) and Health Belief Model (susceptibility, severity, benefits, barriers). The outcome variable was intention to seek help for cancer symptoms. Separate and combined hierarchical regressions tested the relative predictive power of the two models, potential overlap in variance explained, and the most salient constructs within the models. Results: Separate regressions (controlling for age and symptom knowledge) showed each model explained 10–12% variance in men’s help-seeking intentions over and above the adjusted variables. The combined regression indicated symptom knowledge, perceived benefits, and perceived behavioural control were significant predictors of men’s intentions (35% total variance explained). Conclusions: The Theory of Planned Behaviour and Health Belief Model may not be optimal models for explaining men’s help-seeking intentions for cancer symptoms, however, select constructs are important correlates. Future interventions may usefully target symptom knowledge, health beliefs, and control beliefs

Air Activation Following an Atmospheric Explosion

In addition to thermal radiation and fission products, nuclear explosions result in a very high flux of unfissioned neutrons. Within an atmospheric nuclear explosion, these neutrons can activate the various elemental components of natural air, potentially adding to the radioactive signature of the event as a whole. The goal of this work is to make an order-of-magnitude estimate of the total amount of air activation products that can result from an atmospheric nuclear explosion

Understanding the impact of COVID-19 on youth sport in Australia and consequences for future participation and retention

COVID-19 continues to represent the single biggest challenge to contemporary community sport globally. Compliance with social distancing policies, strict return-to-play protocols, and COVID-19 specific training has, perhaps, forever changed the way that children and young people engage in organised sport. Within this context, and while many children and families seek to re-engage with community sport, we (researchers and sport practitioners) have an obligation to ask questions about how the pandemic has impacted youth sport, understand the short- and long-term consequences, and explore what (if any) opportunities can be seized to assist and improve future participation and retention. The aim of this paper was to present an in-depth exploration of the impact of COVID-19 on youth sport in South Australia. Within an interpretive descriptive methodology, this qualitative investigation draws on rich, individual interview and focus group data with 39 youth (ages 15–18), parents, coaches, and sport administrators. A reflexive thematic analysis was undertaken, leading to the development of four substantive themes. We conceptualised the ‘4 Rs’ to advance theoretical understandings about the pandemic’s impact on youth sport, including the themes ‘recognising struggle’, ‘reconnection’, ‘re-engaging after restrictions, and ‘reimagining sport’. The themes captured insights about a decline in mental wellbeing and physical activity, an increase in family connectedness, the challenge for sports to attract volunteers and participants back into sport, and the opportunities to reset values and philosophies underpinning the provision of youth sport. Conclusion The findings provide valuable insight into the youth sport setting as a result of the global pandemic and suggest that families, sporting clubs and sporting organisations require additional resources and tools (for example, support for parents to facilitate their children’s training at home during lockdown) to aid recovery efforts and to ensure the survival and prosperity of youth sport into the future

"I aspire to look and feel healthy like the posts convey": engagement with fitness inspiration on social media and perceptions of its influence on health and wellbeing

BACKGROUND:Fitspiration is a popular social media trend containing images, quotes and advice related to exercise and healthy eating. This study aimed to 1) describe the types of fitspiration content that users access and how they engage with content, 2) investigate the disordered eating and exercise behaviours and psychological distress of individuals who access fitspiration, and 3) understand the perceived influence of fitspiration on health and wellbeing. METHODS:Participants who access fitspiration content were recruited via social media to complete a cross-sectional online survey. Participants' psychological distress was measured using the Kessler 10 Psychological Distress Scale (K10); disordered eating behaviours using the Eating Attitudes Test-26 (EAT-26); and compulsive exercise behaviours using the Exercise Addiction Inventory (EAI). Participants also answered a series of open-ended questions about their experiences with fitspiration. A descriptive statistical analysis was conducted for quantitative data. Responses to open-ended questions were analysed for key themes using an iterative process of open, axial and thematic coding. RESULTS:Participants (N = 180, 151 female, median age 23.0 years (IQR 19.0, 28.5)) most commonly accessed content posted by personal trainers and athletes (59.4%), posts tagged with the 'fitspiration' hashtag (53.9%) and posted by 'everyday' people (53.3%). Overall, 17.7% of participants were classified as high risk for an eating disorder, 17.4% reported very high levels of psychological distress, and 10.3% were at risk of addictive exercise behaviours. Participants described both positive and negative influences of engaging with fitspiration content. The influence on their health beliefs and behaviours was explained through four key themes: 1) Setting the 'healthy ideal', 2) Failure to achieve the 'ideal', 3) Being part of a community, and 4) Access to reliable health information. CONCLUSIONS:Many participants reported benefits of fitspiration content including increased social support and access to health information. However, participants also reported that fitspiration content could negatively influence their wellbeing and perception of healthy goals. Content posted by relatable individuals or qualified experts was perceived as most trustworthy. Future research is needed to determine the individual and content-related factors associated with negative and positive fitspiration experiences.Michelle Raggatt, Cassandra J. C. Wright, Elise Carrotte, Rebecca Jenkinson, Kate Mulgrew, Ivanka Prichard and Megan S. C. Li

Representative Atmospheric Plume Development for Elevated Releases

An atmospheric explosion of a low-yield nuclear device will produce a large number of radioactive isotopes, some of which can be measured with airborne detection systems. However, properly equipped aircraft may not arrive in the region where an explosion occurred for a number of hours after the event. Atmospheric conditions will have caused the radioactive plume to move and diffuse before the aircraft arrives. The science behind predicting atmospheric plume movement has advanced enough that the location of the maximum concentrations in the plume can be determined reasonably accurately in real time, or near real time. Given the assumption that an aircraft can follow a plume, this study addresses the amount of atmospheric dilution expected to occur in a representative plume as a function of time past the release event. The approach models atmospheric transport of hypothetical releases from a single location for every day in a year using the publically available HYSPLIT code. The effective dilution factors for the point of maximum concentration in an elevated plume based on a release of a non-decaying, non-depositing tracer can vary by orders of magnitude depending on the day of the release, even for the same number of hours after the release event. However, the median of the dilution factors based on releases for 365 consecutive days at one site follows a power law relationship in time, as shown in Figure S-1. The relationship is good enough to provide a general rule of thumb for estimating typical future dilution factors in a plume starting at the same point. However, the coefficients of the power law function may vary for different release point locations. Radioactive decay causes the effective dilution factors to decrease more quickly with the time past the release event than the dilution factors based on a non-decaying tracer. An analytical expression for the dilution factors of isotopes with different half-lives can be developed given the power law expression for the non-decaying tracer. If the power-law equation for the median dilution factor, Df, based on a non-decaying tracer has the general form Df=a〖×t〗^(-b) for time t after the release event, then the equation has the form Df=e^(-λt)×a×t^(-b) for a radioactive isotope, where λ is the decay constant for the isotope