151 research outputs found
How policy actors assert authority in the governance of food marketing policies
The regulation of unhealthy food marketing is a highly contested space that involves a diverse range of actors and institutions. There is a paucity of research on the strategies used by the different actors to influence these policies. This study examined the use of authority by different regulatory actors to influence food marketing policies. We conducted semi-structured interviews with (N = 24) government, industry, civil society and technical experts involved in the regulation of food and beverage marketing in Australia. We identified five types of authority: institutional, delegated, expert, principled and capacity-based authority. Actors from the advertising, food and media industries claim more authority than technical experts, civil society, and government actors, suggesting that industry actors have multiple pathways to influence policy. The industry's claims of delegated and institutional authority are highly contested by civil society, technical experts, and state/territory government actors and recognised by federal government actors. Claims of circumscribed institutional authority are common among federal government actors such as the National Department of Health, Australian Media and Communications Authority and Food Standards Australia New Zealand. The assertions of authority observed in this study highlight the fragmented manner of the Australian food marketing regulatory system and have implications for which actors should be held accountable for the current challenges in the governance of food marketing policies.</p
Sagnac interferometry for high-sensitivity optical measurements of spin-orbit torque
Sagnac interferometry can provide a significant improvement in
signal-to-noise ratio compared to conventional magnetic imaging based on the
magneto-optical Kerr effect (MOKE). We show that this improvement is sufficient
to allow quantitative measurements of current-induced magnetic deflections due
to spin-orbit torque even in thin-film magnetic samples with perpendicular
magnetic anisotropy for which the Kerr rotation is second-order in the magnetic
deflection. Sagnac interfermometry can also be applied beneficially for samples
with in-plane anisotropy, for which the Kerr rotation is first order in the
deflection angle. Optical measurements based on Sagnac interferometry can
therefore provide a cross-check on electrical techniques for measuring
spin-orbit torque. Different electrical techniques commonly give quantitatively
inconsistent results, so that Sagnac interferometry can help to identify which
techniques are affected by unidentified artifacts
Recommended from our members
A Systematic Review of the Effect of Remittances on Diet and Nutrition
Background: Remittance income is rising rapidly in most low- and middle-income countries. Despite nutrition being a key policy priority for health and development, we know little about the effect of remittance income on diets and nutrition. Objective: To identify the effect of remittance income on nutrition. Method: Systematic review of English-language studies providing information on the impact of remittances on food consumption, food expenditure, or measures of nutritional status, using a narrative synthesis approach for analysis. We searched the English-language published and gray literature using key words ‘‘remittances,’’ ‘‘nutrition,’’ and ‘‘diets.’’ Results: This systematic review identified 20 studies that examined the effect of remittance income on food consumption, dietary intake, and nutritional status, 2 of which were qualitative studies. Overall, the quality of the studies was weak to moderate. These studies show that remittances can increase access to (purchased) food and may have a consumption smoothing effect, reducing households’ vulnerability and leading to improved food security and reductions in underweight. However, remittances appear to have little effect on markers of chronic undernourishment. The studies also suggest that the extra income from remittances may compound trends toward purchasing less healthy (nontraditional) foods that are associated with the nutrition transition. Conclusion: There is an urgent need for further research on the effect of remittances on nutrition and diets, with remittance income forecast to rise rapidly into the future. Programs to ensure that those households receiving remittances move beyond just meeting sufficient calories and improve dietary quality could create nutritional benefits
Monitoring the impacts of trade agreements on food environments
The liberalization of international trade and foreign direct investment through
multilateral, regional and bilateral agreements has had profound implications
for the structure and nature of food systems, and therefore, for the availability,
nutritional quality, accessibility, price and promotion of foods in different
locations. Public health attention has only relatively recently turned to the links
between trade and investment agreements, diets and health, and there is currently
no systematic monitoring of this area. This paper reviews the available evidence on the links between trade agreements, food environments and diets from an obesity and non-communicable disease (NCD) perspective. Based on the key issues identified through the review, the paper outlines an approach for monitoring the potential impact of trade agreements on food environments and
obesity/NCD risks. The proposed monitoring approach encompasses a set of guiding principles, recommended procedures for data collection and analysis, and quantifiable ‘minimal’, ‘expanded’ and ‘optimal’ measurement indicators to be tailored to national priorities, capacity and resources. Formal risk assessment processes of existing and evolving trade and investment agreements,
which focus on their impacts on food environments will help inform the development of healthy trade policy, strengthen domestic nutrition and health
policy space and ultimately protect population nutrition.The following organizations provided funding support for the travel of participants
to Italy for this meeting and the preparation of background research papers: The Rockefeller Foundation, International Obesity Taskforce (IOTF), University of
Auckland, Deakin University, The George Institute, University of Sydney, Queensland University of Technology, University
of Oxford, University of Pennsylvania Perelman School of Medicine, World Cancer Research Fund International, University of Toronto, and The Australian National
University. The Faculty of Health at Deakin University kindly supported the costs for open access availability of this paper,
and the Australian National Health and Medical Research Council Centre for Research Excellence in Obesity Policy and Food Systems (APP1041020) supported the coordination and finalizing of INFORMAS manuscripts
Incorporating a gender lens into nutrition and health-related policies in Fiji: analysis of policies and stakeholder perspectives
Background: Gender equality, zero hunger and healthy lives and well-being for all, are three of the Sustainable Development Goals (SDGs) that underpin Fiji’s National Development Plan. Work towards each of these goals contributes to the reduction of non-communicable diseases (NCDs). There are gender differences in NCD burden in Fiji. It is, however, unclear whether a gender lens could be more effectively included in nutrition and health-related policies. Methods: This study consisted of three components: (i) a policy content analysis of gender inclusion in nutrition and health-related policies (n = 11); (ii) policy analysis using the WHO Gender Analysis tool to identify opportunities for strengthening future policy; and (iii) informant interviews (n = 18), to understand perceptions of the prospects for gender considerations in future policies. Results: Gender equality was a goal in seven policies (64%); however, most focused on women of reproductive age. One of the policies was ranked as gender responsive. Main themes from key informant interviews were: 1) a needs-based approach for the focus on specific population groups in policies; 2) gender-related roles and responsibilities around nutrition and health; 3) what is considered “equitable” when it comes to gender, nutrition, and health; 4) current considerations of gender in policies and ideas for further gender inclusion; and 5) barriers and enablers to the inclusion of gender considerations in policies. Informants acknowledged gender differences in the burden of nutrition-related NCDs, yet most did not identify a need for stronger inclusion of gender considerations within policies. Conclusions: There is considerable scope for greater inclusion of gender in nutrition and health-related policies in Fiji. This could be done by: 1) framing gender considerations in ways that are actionable and inclusive of a range of gender identities; 2) undertaking advocacy through actor networks to highlight the need for gender-responsive nutrition and health-related policies for key stakeholder groups; 3) ensuring that data collected to monitor policy implementation is disaggregated by sex and genders; and 4) promoting equitable participation in nutrition related issues in communities and governance processes. Action on these four areas are likely critical enablers to more gender equitable NCD reduction in Fiji
Exchange bias between van der Waals materials: tilted magnetic states and field-free spin-orbit-torque switching
Magnetic van der Waals heterostructures provide a unique platform to study
magnetism and spintronics device concepts in the two-dimensional limit. Here,
we report studies of exchange bias from the van der Waals antiferromagnet CrSBr
acting on the van der Waals ferromagnet Fe3GeTe2 (FGT). The orientation of the
exchange bias is along the in-plane easy axis of CrSBr, perpendicular to the
out-of-plane anisotropy of the FGT, inducing a strongly tilted magnetic
configuration in the FGT. Furthermore, the in-plane exchange bias provides
sufficient symmetry breaking to allow deterministic spin-orbit torque switching
of the FGT in CrSBr/FGT/Pt samples at zero applied magnetic field. A minimum
thickness of the CrSBr greater than 10 nm is needed to provide a non-zero
exchange bias at 30 K
A fit-for-purpose nutrient profiling model to underpin food and nutrition policies in South Africa
South Africa (SA) is facing a rising prevalence of obesity and diet-related chronic diseases.
The government is seeking to develop effective, evidence-based policy measures to address this. A
well-designed, fit-for-purpose nutrient profiling model (NPM) can aid policy development. The
aim of this study was to develop a fit-for-purpose NPM in SA. Steps included: (1) determining the
purpose and target population; (2) selecting appropriate nutrients and other food components to
include; (3) selecting a suitable NPM type, criteria and base; and (4) selecting appropriate numbers
and thresholds. As part of the evaluation, the nutritional composition of packaged foods containing
nutritional information (n = 6747) in the SA food supply chain was analyzed, a literature review was
undertaken and various NPMs were evaluated. Our findings indicated that it is most appropriate to
adapt an NPM and underpin regulation with a restrictive NPM that limits unhealthy food components. The Chile 2019 NPM was identified as suitable to adapt, and total sugar, saturated fat, sodium
and non-sugar sweetener were identified as appropriate to restrict. This NPM has the potential
to underpin restrictive policies, such as front-of-package labelling and child-directed marketing
regulations in SA. These policies will support the fight against obesity and NCDs in the country
Validation of a Dynamic Measure of Current Cognitive Reserve in a Longitudinally Assessed Sample of Healthy Older Adults.
Cognitive reserve (CR) is a theoretical construct describing the underlying cognitive capacity of an individual that confers differential levels of resistance to, and recovery from, brain injuries of various types. To date, estimates of an individual's level of CR have been based on single proxy measures that are retrospective and static in nature. To develop a measure of dynamic change in CR across a lifetime, we previously identified a latent factor, derived from an exploratory factor analysis of a large sample of healthy older adults, as current CR (cCR). In the present study, we examined the longitudinal results of a sample of 272 older adults enrolled in the Tasmanian Healthy Brain Project. Using results from 12-month and 24-month reassessments, we examined the longitudinal validity of the cCR factor using confirmatory factor analyses. The results of these analyses indicate that the cCR factor structure is longitudinally stable. These results, in conjunction with recent results from our group demonstrating dynamic increases in cCR over time in older adults undertaking further education, lend weight to this cCR measure being a valid estimate of dynamic change in CR over time
- …