Food Policy Coherence and Integration: a review of adopted methodologies

Multiple scholars in the last two decades have called for a coherent and integrated approach to food policy to address the challenges of the current food systems. Food Policy Coherence and Integration (PCI) are both challenging, as food matters are addressed at more than one level of governance and across several policy domains. Moreover, the analysis of food PCI has been carried out with different methodologies, but no reviews of such methodologies exist in the literature. Thus, the objective of the present study is to fill this gap, by reviewing which research methods were used to assess food PCI. The research adopts a bibliometric methodological approach to develop a quantitative network analysis of the identified studies and content analysis. Data collection was performed on Web of Science and Scopus including exclusively scientific articles from peer-reviewed journals. A total of 35 articles published since 2006 were included in the analysis. The main topics addressed were health and nutrition policies, followed by food security and agriculture. A variety of methods were used to assess Coherence and Integration. The first methodological phase often aimed at creating a policy inventory, followed by a second methodological phase to assess PCI. Some studies used interviews to identify the relevant policies and to comment on them. Other studies carried out PCI assessment relying on researchers’ expertise. To conclude, food PCI studies choose from a variety of methodologies the one that better fits their aims

Innovative digital technologies for purchasing and consumption in urban and regional agro-food systems: A systematic review

The use of digital technologies in the agro-food sector is growing worldwide, and applications in the urban and regional food systems represent a relevant segment of such growth. The present paper aims at reviewing the literature on which and how digital technologies support urban and regional agro-food purchasing and consumption, as well as their characteristics. Data collection was performed on Scopus and Web of Science. Articles were selected using a research string and according to specific inclusion and exclusion criteria. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flow approach was adopted to explain data screening and selection. The 57 resulting studies were included in the final qualitative analysis, which explored the characteristics of the research studies and of the digital technologies analysed. Most of the studies analysed concerned the implications of digital technologies on local food consumption, especially focusing on consumption, primary production and hotel-restaurant-caf\ue9-catering sector (HORECA), and to a limited extent on the retail sector. Consumers and farmers are the main targets of Information and Communications Technology (ICT) tools, whose principal aims are providing information on agro-food products and enhancing networking along the food supply chain. Analysing digital technologies allows a better understanding of their most popular features in order to support their spread among citizens. Digital technologies, and particularly Apps, can be a valuable instrument to strengthen agro-food chain actor relations and to promote urban and regional food systems

PT-Symmetric planar devices for field transformation and imaging

The powerful tools of transformation optics (TO) allow an effective distortion of a region of space by carefully engineering the material inhomogeneity and anisotropy, and have been successfully applied in recent years to control electromagnetic fields in many different scenarios, e.g., to realize invisibility cloaks and planar lenses. For various field transformations, it is not necessary to use volumetric inhomogeneous materials, and suitably designed ultrathin metasurfaces with tailored spatial or spectral responses may be able to realize similar functionalities within smaller footprints and more robust mechanisms. Here, inspired by the concept of metamaterial TO lenses, we discuss field transformations enabled by parity-time (PT) symmetric metasurfaces, which can emulate negative refraction. We first analyze a simple realization based on homogeneous and local metasurfaces to achieve negative refraction and imaging, and we then extend our results to arbitrary PT-symmetric two-port networks to realize aberration-free planar imagin

Governance in the Italian Processed Tomato Value Chain: The Case for an Interbranch Organisation

Collective action among producers is a corrective measure for power imbalance, which affects primary producers in agro-food supply chains. As associations of producers and processors, Interbranch Organisations (IBOs) promote dialogue, best practice, and market transparency. However, interbranch cooperation is still a less explored subject in agro-food governance studies. Therefore, the present paper aims to analyse the role of IBO North Italy for Processing Tomato (IBO NIPT) in the governance of the processed tomato value chain. The IBO for Processing Tomatoes of Northern Italy was chosen as a case study as it is one of the eight recognized IBOs in the country and Italy is the third biggest producer of tomatoes for processing worldwide. Semi-structured interviews with stakeholders involved in the processed tomato value chain were carried out to reach this aim. Abridged transcripts were analysed through thematic analysis by two or three researchers. The present study has three research steps: first, to explore the history of the IBO NIPT; second, to explore its current role as collective institution acting towards power imbalances; third, the IBO’s role in reference price streamlining. A multi-theoretical approach based on the following three theoretical frameworks was used to analyse the interviews: New Institutional Economics (NIE); Devaux’s framework for collective action; and Transaction Cost Economics. The paper highlights the role of local institutions in bringing innovations in the food supply chain and suggests that the future of IBOs in Italy has to be expanded beyond reference price streamlining and could benefit from the cooperation of retailers

PT-Symmetric planar devices for field transformation and imaging

The powerful tools of transformation optics (TO) allow an effective distortion of a region of space by carefully engineering the material inhomogeneity and anisotropy, and have been successfully applied in recent years to control electromagnetic fields in many different scenarios, e.g., to realize invisibility cloaks and planar lenses. For various field transformations, it is not necessary to use volumetric inhomogeneous materials, and suitably designed ultrathin metasurfaces with tailored spatial or spectral responses may be able to realize similar functionalities within smaller footprints and more robust mechanisms. Here, inspired by the concept of metamaterial TO lenses, we discuss field transformations enabled by parity-time (PT) symmetric metasurfaces, which can emulate negative refraction. We first analyze a simple realization based on homogeneous and local metasurfaces to achieve negative refraction and imaging, and we then extend our results to arbitrary PT-symmetric two-port networks to realize aberration-free planar imagin

Rasch validation of the prosthetic mobility questionnaire: a new outcome measure for assessing mobility in people with lower limb amputation

Objective: To create a new outcome measure of mobility in people with lower limb amputation, based on a pool of 14 items assessing prosthetic mobility, comprising the 12-item Prosthesis Evaluation Questionnaire (Mobility Section) plus 2 new items. Design: Cross-sectional study. Subjects: A total of 100 subjects (median age 58 years; 46 males; median body mass index 23.8) who had recently undergone lower limb amputation. Methods: Each patient completed the 14-item questionnaire twice: (i) at admission to the rehabilitation unit for prosthetic rehabilitation training; (ii) at 6-month follow-up after discharge. Results: After Rasch analysis, 2 items were deleted (one due to misfit, the other because showing large (> 0.30) positive correlation of residuals with two other items (local dependence). The remaining items fitted the Rasch model (internal construct validity), giving a new 12-item scale with a 5-level response format, the Prosthetic Mobility Questionnaire (PMQ), which demonstrated unidimensionality, lack of differential item functioning, and good reliability indices (person-separation reliability = 0.87; Cronbach's alpha 0.88). Conclusion: Although further studies are needed to increase confidence in clinical use of the PMQ, this new questionnaire appears to be a promising, psychometrically-sound patientreported outcome measure for assessment of mobility in subjects with lower limb amputation who use a prosthesi