\u27While we can, we will\u27: exploring food choice and dietary behaviour amongst independent older Australians

Aim Burgeoning proportions of populations aged over 65 years impose an increased financial burden upon governments for the provision of associated health and aged-care services. Strategies are therefore required to mitigate service demand through the preservation of good health and independence into old age. Nutrition has been acknowledged as a key factor for realisation of this goal. The objective of the present study was to investigate factors responsible for shaping food shopping, cooking and eating behaviours amongst healthy, independently living Australians aged 60 years and over. Methods Eighteen (5 male, 13 female) independently living residents sourced from three low-care Illawarra Retirement Trust (IRT) lifestyle residential facilities volunteered to take part in the present study. All participants were aged 60 years or more and in relatively good health. Semi-structured focus groups were implemented to explore factors influencing the selection, acquisition and preparation of food. Each session was digitally recorded, transcribed verbatim and subsequently examined using content and thematic analysis. Results Ten sub-themes were identified and grouped into three broader themes: adaptation, psychosocial parameters and food landscape. Findings reflect an active self-determination to retain independence, with a focus on the maintenance of favourable nutritional status. A sense of resourcefulness was evident through the development of strategies to overcome potential barriers to healthy eating. Conclusions Factors that influence the food choices of community-living older Australians are complex and multifactorial, and underpinned by a strong desire for independence and control over personal health outcomes. Studies involving larger, more demographically diverse participant groups are required to elicit socially acceptable strategies that will empower older Australians to sustain their health and independence for the longer term

Systematic review of nutritional interventions for people admitted to hospital for alcohol withdrawal

Aim: The aim of this review is to describe the nature of nutritional interventions for people admitted to hospital for alcohol withdrawal reported in the scientific literature and the health outcomes achieved. Methods: The review protocol was registered with PROSPERO (CRD42017081884). The following databases were systematically searched following the PRISMA protocol: CINAHL, MEDLINE, PsycARTICLES, PsycINFO, Scopus and Web of Science. Eligible studies were those published in English, in a hospital inpatient setting with the primary reason for admission being alcohol withdrawal. Studies of patient populations with the diagnosis of pancreatitis or liver cirrhosis were excluded. Studies were screened for eligibility, and data were extracted and descriptively analysed. Identified articles were assessed using the Quality Criteria Checklist for Primary Research produced by the Academy of Nutrition and Dietetics. Results: Fourteen studies met the inclusion criteria. Given the heterogeneity of studies, only a descriptive analysis of interventions could be achieved. Nutrition interventions included supplementation with thiamine, multivitamins, amino acids, antioxidant compounds, probiotics, magnesium or were educational interventions. Outcome measures included memory function, biochemical and anthropometrical indices, withdrawal symptoms, bowel flora levels and nutrition knowledge. However, the overall body of evidence was limited, particularly as there was a wide variation in participant age, study designs and duration of interventions. Conclusions: A wide range of nutrition interventions were identified, mostly involving nutrient supplements ameliorating inadequacies. Future research might also consider total dietary interventions as well as studies on the perspectives of people undergoing alcohol withdrawal

Promoting cognitive support technology use and employment success among postsecondary students with traumatic brain injuries

OBJECTIVE: This article applies positive psychology principles to the purpose and objectives of a five-year, federally-funded initiative to provide cognitive support technology (CST) training and career preparatory services for undergraduate college students with mild and moderate traumatic brain injuries (TBI). METHODS: A total of 48 students with TBI have participated in the project during its first 18 months of operation - 14 of whom are military veterans with disabilities who were in the Iraq and/or Afghanistan theaters. CONCLUSION: Positive psychology interventions such as Best Possible Self, Intensely Positive Experiences, and Asset-based Assessments provide a framework for examining the activities of this multi-site development project

Audit of the national meal guidelines for home‐delivered and centre‐based meal programs

Objective To evaluate the impact of the National Meal Guidelines on service providers and caterers involved in home‐delivered and centre‐based meal programs in Australia. Methods An anonymous online survey was conducted to explore the uptake of the guidelines by participants and evaluate the impact on their practice. Closed questions were analysed using χ2 and Fisher\u27s exact tests, while open‐ended questions underwent thematic analysis to identify key themes. Results A total of 101 out of 441 participants completed the survey (response rate of 23.0%). Most participants (69%) were currently referring to the guidelines, particularly for nutrition guidelines, menu planning and auditing tools. Key barriers to implementation were cost, supplier compliance issues and lack of staff education. Conclusions The National Meal Guidelines have been successfully implemented in many services around Australia. Further research should investigate their impact on customer satisfaction and external supplier compliance

Remember Me? Exposure to Unfamiliar Food Brands in Television Advertising and Online Advergames Drives Children's Brand Recognition, Attitudes, and Desire to Eat Foods: A Secondary Analysis from a Crossover Experimental-Control Study with Randomization at the Group Level

Background: Limitations in current Australian regulatory provisions may be identified by demonstrating the effect of different marketing methods on children’s recognition and attitudes toward unhealthy food brands. Objective: To investigate how exposure to different marketing techniques from television (TV) and online food advertising affects children’s brand recall, recognition, and attitudinal responses toward brands and brand consumers and children’s desire to eat the advertised products. Design: Secondary analysis of data from a crossover experimental-control study. Participants/setting: In all, 154 children (7 to 12 years) completed the study, conducted at four 6-day holiday camps from April 2016 to January 2017 in New South Wales, Australia. Children were assigned to a single-media (n=76) or multiple-media (n=78) condition. Intervention: All children viewed 10 TV food advertisements in a cartoon on three occasions. For one of the brands, one set of children additionally played online “advergames” featuring the brand. Main outcome measures: Children’s recognition and attitudes toward brands and brand consumers and children’s desire to eat the product were reported via a brand recognition and attitude survey pre- and postintervention. Marketing techniques were categorized. Statistical analysis: Pre- and postintervention brand recognition and relationships between brand recognition and attitudes by media condition and desire to eat the product were examined using generalized linear mixed models and linear mixed models. Results:There was a significant increase in the number of brands recognized postexposure by children in both media groups (mean difference=3.8, P Conclusions: The marketing communications increased children’s brand recognition and elicited positive attitudinal responses. These findings indicate a need for policy makers to consider additional regulations to protect children from the persuasive influence of unhealthy food advertising

Economic Policy Program and Economic Performance in U.K.

Purpose: To (a) evaluate whether the lysine-rich protein (LRP) magnetic resonance (MR) imaging reporter gene can be engineered into G47Δ, a herpes simplex-derived oncolytic virus that is currently being tested in clinical trials, without disrupting its therapeutic effectiveness and (b) establish the ability of chemical exchange saturation transfer (CEST) MR imaging to demonstrate G47Δ-LRP. Materials and Methods: The institutional subcommittee for research animal care approved all in vivo procedures. Oncolytic herpes simplex virus G47Δ, which carried the LRP gene, was constructed and tested for its capacity to replicate in cancer cells and express LRP in vitro. The LRP gene was detected through CEST imaging of lysates derived from cells infected with G47Δ-LRP or the control G47Δ-empty virus. G47Δ-LRP was then tested for its therapeutic effectiveness and detection with CEST MR imaging in vivo. Images of rat gliomas were acquired before and 8-10 hours after injection of G47Δ-LRP (n = 7) or G47Δ-empty virus (n = 6). Group comparisons were analyzed with a paired t test. Results: No significant differences were observed in viral replication or therapeutic effectiveness between G47Δ-LRP and G47Δ-empty virus. An increase in CEST image contrast was observed in cell lysates (mean ± standard deviation, 0.52% ± 0.06; P = .01) and in tumors (1.1% ± 0.3, P = .02) after infection with G47Δ-LRP but not G47Δ-empty viruses. No histopathologic differences were observed between tumors infected with G47Δ-LRP and G47Δ-empty virus. Conclusion: This study has demonstrated the ability of CEST MR imaging to show G47Δ-LRP at acute stages of viral infection. The introduction of the LRP transgene had no effect on the viral replication or therapeutic effectiveness. This can aid in development of the LRP gene as a reporter for the real-time detection of viral spread

Friction Mediates Scission of Tubular Membranes Scaffolded by BAR Proteins

International audienceMembrane scission is essential for intracellular trafficking. While BAR domain proteins such as endophilin have been reported in dynamin-independent scission of tubular membrane necks, the cutting mechanism has yet to be deciphered. Here, we combine a theoretical model, in vitro, and in vivo experiments revealing how protein scaffolds may cut tubular membranes. We demonstrate that the protein scaffold bound to the underlying tube creates a frictional barrier for lipid diffusion; tube elongation thus builds local membrane tension until the membrane undergoes scission through lysis. We call this mechanism friction-driven scission (FDS). In cells, motors pull tubes, particularly during endocytosis. Through reconstitution, we show that motors not only can pull out and extend protein-scaffolded tubes but also can cut them by FDS. FDS is generic, operating even in the absence of amphipathic helices in the BAR domain, and could in principle apply to any high-friction protein and membrane assembly

Children's self-regulation of eating provides no defense against television and online food marketing

Exposure to unhealthy food marketing stimulates children\u27s food consumption. A child\u27s responsiveness is influenced by individual factors, resulting in an increased vulnerability to advertising effects among some children. Whether these differential responses may be altered by different parental feeding behaviours is unclear. The purpose of this study was to determine the relationship between parental feeding practices and children\u27s food intake responses to food advertising exposure. A randomised, crossover, counterbalanced, within subject trial was conducted across four, six-day holiday camps in New South Wales, Australia between April 2016 and January 2017 with 160 children (7-12 years, n = 40/camp). Children were randomised to either a multiple media (TV and Internet) or single media (TV) condition and exposed to food (3 days) and non-food (3 days) advertising in an online game and/or a cartoon. Children\u27s food consumption (kilojoules (kJ)) was measured at a snack immediately after advertising exposure and then at lunch later in the day. Parents completed the Child Feeding Questionnaire, and \u27restriction\u27 and \u27pressure to eat\u27 subscale scores were calculated. While food advertising affected all children in the multiple media condition, there was an increased effect on snack intake among children whose parents reported pressuring them to eat, with children consuming an additional 356 kJ after food advertising compared with non-food advertising. This was 209 kJ more than children whose parents did not pressure them to eat. In the single media condition, only children whose parents reported restrictive feeding practices ate more at lunch on food advertising days than non-food advertising days (240 kJ). These data highlight an increased susceptibility to food advertising among children whose parents report controlling feeding practices

Sustained impact of energy-dense TV and online food advertising on children's dietary intake: a within-subject, randomised, crossover, counter-balanced trial

Background: Policies restricting children's exposure to unhealthy food marketing have been impeded by the lack of evidence showing a direct link between food advertising exposure and children's energy intake and body weight. Food advertising exposure increases children's immediate food consumption, but whether this increased intake is compensated for at later eating occasions is not known; consequently the sustained effect on diets remains unclear. Methods: We conducted a within-subject, randomised, crossover, counterbalanced study across four, six-day holiday camps in New South Wales, Australia between April 2016 and January 2017. Children (7-12 years, n = 160) were recruited via local schools, email networks and social media. Two gender- and age-balanced groups were formed for each camp (n = 20), randomised to either a multiple- or single- media condition and exposed to food and non-food advertising in an online game and/or a television cartoon. Children's food consumption (kilojoules) was measured at a snack immediately after exposure and then at lunch later in the day. Linear mixed models were conducted to examine relationships between food advertising exposure and dietary intake, taking into account gender, age and weight status. Results: All children in the multiple-media condition ate more at a snack after exposure to food advertising compared with non-food advertising; this was not compensated for at lunch, leading to additional daily food intake of 194 kJ (95% CI 80-308, p = 0.001, d = 0.2). Exposure to multiple-media food advertising compared with a single-media source increased the effect on snack intake by a difference of 182 kJ (95% CI 46-317, p = 0.009, d = 0.4). Food advertising had an increased effect among children with heavier weight status in both media groups. Conclusion: Online ('advergame') advertising combined with TV advertising exerted a stronger influence on children's food consumption than TV advertising alone. The lack of compensation at lunch for children's increased snack intake after food advertising exposure suggests that unhealthy food advertising exposure contributes to a positive energy-gap, which could cumulatively lead to the development of overweight

Design of 280 GHz feedhorn-coupled TES arrays for the balloon-borne polarimeter SPIDER

We describe 280 GHz bolometric detector arrays that instrument the balloon-borne polarimeter SPIDER. A primary science goal of SPIDER is to measure the large-scale B-mode polarization of the cosmic microwave background in search of the cosmic-inflation, gravitational-wave signature. 280 GHz channels aid this science goal by constraining the level of B-mode contamination from galactic dust emission. We present the focal plane unit design, which consists of a 16$\times$16 array of conical, corrugated feedhorns coupled to a monolithic detector array fabricated on a 150 mm diameter silicon wafer. Detector arrays are capable of polarimetric sensing via waveguide probe-coupling to a multiplexed array of transition-edge-sensor (TES) bolometers. The SPIDER receiver has three focal plane units at 280 GHz, which in total contains 765 spatial pixels and 1,530 polarization sensitive bolometers. By fabrication and measurement of single feedhorns, we demonstrate 14.7$^{\circ}$ FHWM Gaussian-shaped beams with $<$1% ellipticity in a 30% fractional bandwidth centered at 280 GHz. We present electromagnetic simulations of the detection circuit, which show 94% band-averaged, single-polarization coupling efficiency, 3% reflection and 3% radiative loss. Lastly, we demonstrate a low thermal conductance bolometer, which is well-described by a simple TES model and exhibits an electrical noise equivalent power (NEP) = 2.6 $\times$ 10$^{-17}$ W/$\sqrt{\mathrm{Hz}}$, consistent with the phonon noise prediction.Comment: Proceedings of SPIE Astronomical Telescopes + Instrumentation 201