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THE concept of using a cathode ray tube for displaying integrated flight information dates back to the Sperry Flight Ray of 1936, but the idea of projecting such information into the forward head‐up view of the pilot has been developed from a concept proposed by the Royal Aircraft Establishment, Farnborough and serious work on the basic project commenced early in the 1950s.

Environmental awareness is increasing among people in developing countries. In this regard, companies should consider ecological goals in addition to financial goals. Since the food industry is recognised as one of the largest emitters of CO₂, profit and ecological objectives are optimised in radio-frequency identification (RFID) based closed-loop supply chain in the food industry in this paper.

Based on the literature, companies with a green entrepreneurial orientation (GEO) can turn ecological problems into opportunities using their proactiveness. In this regard, a new mixed-integer non-linear mathematical model is presented for optimising a new multi-product RFID-based closed-loop supply chain with a GEO in the food industry. The case study in this paper is Ofogh-e Kourosh company which is located in Iran. The GAMS software is used to code this model.

The optimum number of new products and materials flow was found among the closed-loop supply chain entities. Some factors as price, quality and warranty of products were considered, and the number of reopening of facilities if needed was set. The optimum node for RFID installation was found.

The paper presents a multi-objective mathematical model for optimising a multi-product RFID-based closed-loop supply chain with a GEO in the food industry. In addition, this paper gives insights into how can model this type of supply chain considering ecological and financial attributes.

The study analysed the amount of plate waste in a university refectory in Izmir, Turkey to find ways of minimizing plate waste in the university, providing sustainability and contributing to the development of circular economy and raising awareness about the plate waste problem.

Observation and semi-structured interviews were used to determine the volume of plate waste and level of awareness of academicians, students and administrative staff and suggest sustainable solutions for food waste in university refectories. The data gained from the semi-structured interviews were analysed with qualitative analysis software (MAXQDA®).

Plate waste in the university's refectories is increasing due to the lack of precautionary measures. Academicians, students and administrative staff all showed low awareness rates.

This study is original in investigating theoretically and empirically one of the main reasons for food waste, namely plate waste in mass consumption sites, and evaluating the effect of food waste from an economic, social and environmental perspective.

Etymologically, the word “loss” means to be deprived, temporarily or permanently, of use of faculty or an advantage. Therefore, when businesses and entrepreneurs suffer large amount of losses, they can be attributed to a non-effective and non-efficient way of handling assets. Consequently, high levels of bad management can be the cause for food losses (FL) across the agri-food supply chain, food waste (FW) depends on consumers' behavior in organizing food basket. Food loss and food waste (FWL) negatively affect environment and global economy. The purpose of this paper is to propose a holistic 4Es (Ethical_Equity_Ecological_Economic) approach aimed at better managing and treating FLW along the agri-food chain from upstream to downstream stages by addressing entrepreneurs and consumers' approach.

The work focuses on the definition and designing of three possible tools: (1) the implementation of a FL_break-even point model; (2) the Hazard Analysis Critical Control Point (HACCP) procedures including a scheme for FL critical points and (3) a consumer's tax FW declaration model. Beginning with these tools, the work tries to define a holistic model by involving all the actors performing in a strictly inter- linked system.

Approaching the FLW issue in a holistic way can ensure the involvement of engaged and productive people at work, lead to strategies and policies aimed at enriching consumers' awareness and entrepreneurs' management approach, and can address the handling of FLW toward Ethical, Equity, Ecological_and Economic (that means effective and efficient) paths.

Monitoring and decreasing FLW by implementing the proposed tools from upstream to downstream of the food supply chain can certainly improve the reliability of firm production and investment decisions, and at the same time, behavior of people who feel to be part of an interrelated system. This can help to lighten FLW negative impacts on consumers' income and on pollution as well as indirectly on poverty.

This paper wants to make an innovative attempt to approach the FLW issue in a global and holistic way, while focusing on behavior and awareness of firms/entrepreneurs and consumers/citizens. In addition, the tools and approach defined pave the way for subsequent empirical works to follow.

The livestock sector contributes significantly to the Brazilian economy, but also creates many environmental and social issues. To mitigate these problems and help counteract the effects of the growing production demand, it is essential to address the prevention of food loss and waste (FLW). Therefore, the aim of the present study is to identify the causes of FLW, model their interrelationships and determine their root causes for the Brazilian beef supply chain (SC).

16 causes are analysed using an integrated interpretive structural modelling (ISM) and matrix impact of cross-multiplication applied to classification (MICMAC) methodology. ISM identified interrelationships among the causes and MICMAC determined the root causes of FLW.

The ISM highlights the “Lack of transportation infrastructures”, “Inadequate handling”, “Poor operational performance”, “Variety of products available in supermarkets” and “Unhealthy animals and outbreaks of disease” as the most influential causes and the MICMAC classifies them as the root causes of FLW in the Brazilian beef SC.

The results provide fundamental insights for researchers, practitioners and policymakers, by exploring which causes are more influential and which are the root causes, thereby assisting the SC members in the definition of suitable strategies to mitigate FLW.

This is the first empirical analysis of the interdependencies between the causes of FLW in the beef SC.

This study examines the intricate interplay of blockchain, public governance and the circular economy (CE), aiming to assess the potential of blockchain technology (BT) in addressing challenges associated with the adoption of CE principles, particularly in the public sector.

Focused on public governance, the research employs in-depth interviews with Finnish policymakers actively engaged in CE initiatives. Qualitative analysis is applied to derive insights and patterns from the gathered data, providing a nuanced understanding of blockchain’s transformative role.

The study uncovers key dimensions for leveraging blockchain in the CE within the public sector. Notable findings include the significance of contextual transparency, the use of incentivization as a regulatory tool, the role of standardization through strategic autonomy and the importance of public engagement and participation.

This research contributes a unique framework that illuminates the transformative potential of blockchain within the CE, emphasizing its relevance to public governance. The identified dimensions offer practical insights for policymakers and practitioners seeking to navigate the complexities of circular transitions in the public sector.