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Food socialization is the process of influences that forms children's eating habits and preferences, affecting their well-being for life. The authors' study explores what children and adolescents eat and how they obtain food at school, aiming to describe the deleterious food socialization phenomenon. The authors focused on understanding how deleterious food socialization influences children's food well-being within the school environment.

The authors developed a mixed methodology using structured questionnaires with open and closed questions. The authors also took pictures of the schools' canteens, which allowed deepening the understanding of the school environment. The data collection occurred in two Brazilian private schools. The schools' teachers were responsible for collecting 388 useful questionnaires from students between 10 and 14 years old.

The authors found statistically significant differences between food originating at home and school. The amount of ultra-processed foods and beverages consumed at home and taken by children and adolescents from home to school is smaller than what they buy in the school canteen or get from their colleagues. Thus, the authors suggest that the school environment tends to be more harmful to infant feeding than the domestic one.

This study coins the concept of deleterious food socialization: situations or environments in which the food socialization process negatively impacts one's well-being. The authors' results illustrate the deleterious food socialization phenomenon in the school environment.

In recent years, network science has become a dynamic and promising discipline. This study aims to provide a brief summary of the subject and the application to the tourism domain.

This paper is based on a non-exhaustive survey of the literature.

The state-of-the-art of network science in tourism is explored and discussed, together with possible future developments.

This paper uses a limited set of works, those deemed the most significant to sketch the situation. The choice might be subjective, but the overall picture is clear. Given what accomplished so far, the methods of network science seem interesting both for their theoretical and practical outcomes. In essence, they provide a better and more objective view on the structural and dynamic characteristics of the tourism phenomenon and of the different tourism systems and components.

This paper critically reflects on the state of network science and its application to the tourism domain. Even without claiming to be complete, this paper takes a general perspective approach rather than examining single topics or issues.

The city of Fortaleza, capital of the state of Ceará in the north-east of Brazil, presents a paradox as a present-day tourist destination, while also marked by features and processes characteristic of cities in the Global South, such as high levels of social inequality with fragmented urban margins and vulnerabilities. This research problematizes the idea of “historical ruins” proposed by Walter Benjamin as a viable way to understand how the organization process of today's city margins can be “denaturalized” by the past. The objective of this research is to assess how the urban margins of the city were organized as a history of resistance.

In theoretical terms, this research links critical urban studies with critical approaches to organizational history (COH) based on Walter Benjamin's philosophical concepts of “ruins” and “progress”. The historical and archival methodology, consisting of 193 documents, suggests the existence of a philosophical–historical nexus that helps explain the spatial fragmentation of the city, and especially the urban margins in the western region of Fortaleza.

The Benjaminian notion of “historical ruins” has been exemplified by the Brazilian government practices confining migrants fleeing drought in internment camps on the margins of the city of Fortaleza in three waves beginning in 1877, 1915 and 1932 respectively. The effects of such confinement policies put into practice in the name of “progress” influenced the organization of large urban spaces on the city's margins, whereas on the other hand, the analyses advanced in this research reflect on alternatives to re-frame the history of the organization of the margins of Fortaleza through a set of practices of resistance.

Based on the concept of “denaturalization”, and through re-activation of the memory of a circumstantial past, the gaze of the “ruins”, as represented by the belief in “progress” addressed in official reports of government confinement policies, spaces of resistance have emerged where new possibilities for the future of the city can be imagined.

This chapter discusses the emerging network science approach to the study of complex adaptive systems and applies tools derived from statistical physics to the analysis of tourism destinations. The authors provide a brief history of network science and the characteristics of a network as well as different models such as small world and scale free networks, and dynamic properties such as resilience and information diffusion. The Italian resort island of Elba is used as a case study allowing comparison of the communication network of tourist organizations and the virtual network formed by the websites of these organizations. The study compares the parameters of these networks to networks from the literature and to randomly created networks. The analyses include computer simulations to assess the dynamic properties of these networks. The results indicate that the Elba tourism network has a low degree of collaboration between members. These findings provide a quantitative measure of network performance. In general, the application of network science to the study of social systems offers opportunities for better management of tourism destinations and complex social systems.