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The aim of this research is to create a theoretical framework for a local energy innovation system based on renewable energy sources. For this purpose, four types of clusters were outlined based on energy-generation capacity and socio-economic factors such as “local wealth”, “relational capital”, “scientific and research capital” and “energy demand”. This classification revealed areas of Poland that have diverse features in terms of energy-generation capacity and innovation abilities. For each type of area, energy potentials combined with innovation abilities were established. To understand how areas with insufficient energy and innovation capacities could be supported in their development of local energy sovereignty, the concept of the regional innovation system has been adjusted. The results of the research can serve as an aid in the development of national and regional energy policies focused on the specificity and capacity of energy generation and innovation of each area.

Local medical systems are key elements of social-ecological systems as they provide culturally appropriate and locally accessible health care options, especially for populations with scarce access to biomedicine. The adaptive capacity of local medical systems generally rests on two pillars: species diversity and a robust local knowledge system, both threatened by local and global environmental change. We first present a conceptual framework to guide the assessment of knowledge diversity and redundancy in local medicinal knowledge systems through a gender lens. Then, we apply this conceptual framework to our research on the local medicinal plant knowledge of the Tsimane' Amerindians. Our results suggest that Tsimane' medicinal plant knowledge is gendered and that the frequency of reported ailments and the redundancy of knowledge used to treat them are positively associated. We discuss the implications of knowledge diversity and redundancy for local knowledge systems' adaptive capacity, resilience, and health sovereignty.

PurposeThis paper examines how key actors in the UK food system (FS) understand the role of the local food sector in relation to FS resilience.Design/methodology/approachDiscourse analysis was used to assess and compare the framings of the UK FS in 36 publications released during Covid-19 from alternative food networks (AFNs) actors and from other more mainstream FS actors, including the UK government.FindingsThe analysis shows that AFNs actors perceive the UK FS as not resilient and identify local FSs as a route towards greater resilience (“systemic” framing). In contrast, other food actors perceive the UK FS as already resilient, with the role of local food limited to specific functions within the existing system (“add-on” framing). The two groups converge on the importance of dynamic public procurement and local abattoir provision, but this convergence does not undermine the fundamental divergence in the understanding of the role of “the local” in resilient UK FSs. The local food sector’s messages appear to have gone largely unheard in mainstream policy.Research limitations/implicationsThe paper presents an analysis of public sector reports focused on the UK FS released during the Covid-19 pandemic years 2020–2021. The corpus inclusion criteria mean that publications during this period which focus on other food sector issues, such social injustices, climate change and health, were not included in the analysis, although they may have touched upon local food issues. The authors further recognise that Covid-19 had a longer lasting effect on FSs than the years 2020–2021, and that many other publications on FSs have been published since. The time span chosen targets the time at which FSs were most disrupted and therefore aims to capture emerging issues and solutions for the UK FS. The authors’ insights should be further validated through a more complete review of both public reports and academic papers covering a wider base of food-related issues and sectors as well as a broader timespan.Originality/valueA comparison of how different FS actors understand the importance of local food, especially in relation to resilience, has not been undertaken to date. The findings raise important questions about the disconnect between AFN actors and other actors in the framing of resilience. Considering the need to ensure resilience of the UK FS, this study's findings raise important insights for UK food policy about the “local food blindspot” and for food movement actors wishing to progress their vision of transformative change.

The optimized use of electric vehicles has great potential, as their use is possible not only for their charging, but also for auxiliary services. For a more reliable operation of the Microgrid, and when there are no conditions for returning energy to the network, it can be given through the energy storage system to the batteries of electric vehicles and stored there. At the same time, two-way energy transfer is used: both to and from the electric vehicle. The study of the operation of the DC Microgrid control system was carried out by simulation modeling in Matlab on the developed model, the control is carried out according to the developed algorithm of connecting and disconnecting the fleet of electric vehicles according to the daily profile of their capacities. Research has confirmed the feasibility of using an intermediate (buffer) storage system when using the concept of two-way energy exchange between an electric vehicle and Microgrid, and the efficiency of the charge management system has been evaluated. References 16, figures 3, table 1.

Background Childhood obesity persists in the United States and is associated with serious health problems. Higher rates of obesity among children from disadvantaged households may be, in part, attributable to disparities in access to healthy foods such as fruits and vegetables. Community supported agriculture can improve access to and consumption of fresh produce, but the upfront payment structure, logistical barriers, and unfamiliarity with produce items may inhibit participation by low-income families. The aim of this project is to assess the impact of subsidized, or “cost-offset,” community supported agriculture participation coupled with tailored nutrition education for low-income families with children. Methods/design The Farm Fresh Foods for Healthy Kids community-based, randomized intervention trial will build on formative and longitudinal research to examine the impact of cost-offset community supported agriculture on diet and other health behaviors as well as the economic impacts on local economies. The intervention will involve reduced-price community supported agriculture shares which can be paid for on a weekly basis, nine skill-based and seasonally-tailored healthy eating classes, and the provision of basic kitchen tools. Low income families with at least one child aged 2–12 years will be recruited to join existing community supported agriculture programs in New York, North Carolina, Vermont, and Washington. In each program, families will be randomized 1:1 to intervention or delayed intervention groups. Data will be collected at baseline, and in the fall and spring for 3 years. The primary outcomes are children’s intake of fruits and vegetables and foods high in sugar and/or (solid) fat, as well as diet quality; secondary outcomes include physical, behavioral, psychosocial, and environmental variables. Cost-effectiveness and economic impact at the farm and community levels also will be assessed. Discussion This integrated project will provide important information and contribute to the evidence base regarding the use of local agricultural interventions to improve children’s dietary behaviors and weight maintenance. Findings also will inform the development of a toolkit for farmers and education modules related to local food system innovations for undergraduate and graduate students. Trial registration ClinicalTrials.gov NCT02770196 . Registered 5 April 2016. 

Edible flowers (EFs) form a special group of food plants that serve a pivotal role in local food systems, both in their utilitarian value and cultural significance. Dali, renowned for its rich biocultural diversity, is home to various ethnic groups with unique traditions regarding the consumption of EFs. However, systematic and comprehensive ethnobotanical studies of EFs are lacking, and their biocultural significance has not been discussed. Through ethnobotanical surveys conducted in 15 markets across Dali, 163 taxa of EFs were documented, encompassing 56 families and 108 genera. They were consumed in 16 ways and as 5 types of food. Quantitative evaluations using the Relative Occurrence Frequency (ROF) and Cultural Food Significance Index (CFSI) assessed the local importance of these flowers. Comparisons were made with another site regarding flower-eating species and methods, revealing biocultural differences. The study highlights how these flowers contribute to local dietary practices and cultural traditions. The role of EFs in sustainable food systems (SFS) is discussed, with emphasis on their economic, environmental, and social impacts. Protecting biocultural diversity means maintaining reciprocal relationships between people and edible species, which are crucial nodes in local SFS.

End-users are more active because of demand response programs and the penetration of distributed energy resources in the bottom-layer of the power systems. This paper presents a virtual organization of agents of the power distribution grid for local energy trade. An iterative algorithm is proposed; it enables interaction between end-users and the Distribution Company (DisCo). Then, the performance of the proposed algorithm is evaluated in a 33-bus distribution network; its effectiveness is measured in terms of its impact on the energy trading scenarios and, thus, of its contribution to the energy management problem. According to the simulation results, although aggregators do not play the role of decision makers in the proposed model, our iterative algorithm is profitable for them.

Escalating intensification and homogenization occurring throughout the supply chain poses serious challenges to the global food supply. Several approaches have been developed to shift the food systems to a more resilient path; however, the high unit costs of shipping impede its development. This paper proposes a shared logistic service supported by E-commerce as a solution to this problem. It analyzes the shared logistic system developed by Vegibus Ins. in Japan which has unique features, such as fixed routes. It argues that the logistic service has the ability to connect different scales while supporting flexible transactions leading to the construction of a resilient agri-food system. At the same time, the paper points out the need for subsidies from the governments to facilitate this kind of shared logistic service at the initial stage as one limitation to this approach.

Food is becoming an increasingly important issue in the urban context. Urban food policies are a new phenomenon in Czechia, where urban food alternatives to the current food regime are promoted by food movements or take the form of traditional self-provisioning. This paper examines how urban food governance in Prague and Brno is constituted based on the municipalities’ relations with actors engaged in urban food alternatives. We argue that prioritizing aspects of local food system transformation compliant with the status quo is non-systemic and implies a fragmentation of urban food alternatives based on different levels of social capital and radicality. We conceptualize urban food alternatives as values-based modes of production and consumption and focus on values that guide urban food governance in its participatory and territorial interplay with the actors of urban food alternatives. Our analysis reveals that the values underpinning the two cities’ progressive food policies do not match reality on the ground. We propose four types of relations between the two examined cities and aspects of the local food system transformation. Aspects compliant with the status quo, such as food waste reduction and community gardening are embraced, whereas those requiring more public intervention, such as public procurement, short supply chains, or the protection of cultivable land are disregarded, degraded, or, at most, subject to experimentation as part of biodiversity protection. Chances for a successful transformation of the local food system under such governance are low but can be increased by strengthening social capital and coalition work among urban food alternatives.