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The aim of this paper is to evaluate the use of blockchain for identity management (IdM) in the context of the Internet of things (IoT) while focusing on privacy-preserving approaches and its applications to healthcare scenarios.

The paper describes the most relevant IdM systems focusing on privacy preserving with or without blockchain and evaluates them against ten selected features grouped into three categories: privacy, usability and IoT. Then, it is important to analyze whether blockchain should be used in all scenarios, according to the importance of each feature for different use cases.

Based on analysis of existing systems, Sovrin is the IdM system that covers more features and is based on blockchain. For each of the evaluated use cases, Sovrin and UniquID were the chosen systems.

This paper opens new lines of research for IdM systems in IoT, including challenges related to device identity definition, privacy preserving and new security mechanisms.

This paper contributes to the ongoing research in IdM systems for IoT. The adequacy of blockchain is not only analyzed considering the technology; instead the authors analyze its application to real environments considering the required features for each use case.

Open innovation breadth (OIB) considers the diversity of external collaboration partners for innovation. The authors investigate the moderating effect of OIB on the relationship between industrial innovation activities (innovation inputs) and industrial innovation results (innovation outputs).

This study is based on secondary data from the Brazilian innovation survey, representing more than 30,000 innovative companies across 55 industrial sectors.

This study’s results show that OIB has different moderating effects regarding the several innovation input–output relationships. While OIB benefits some relationships, others are hampered by the diversity of collaboration partners.

Few studies have addressed OIB at the macro level. Using the perspective of transaction cost economics (TCE), the authors discuss the contributions and limitations of OIB at the industry level.

Brazil’s economic growth in the first decade of this century was accompanied by greater visibility of the disadvantaged economic classes in films, in television, and in the press. Even the celebrated telenovelas and TV series began to feature a side of Brazil which, previously, had only been presented in a negative light. This chapter proposes a central question: Could media visibility be masking the complexity of economic class for social structure or class structure in Brazilian society, which, despite recent improvements, is still marked by stark social divides?

Our objective is to approach this issue from a cultural perspective focused on analyzing media representations of underprivileged groups, following Douglas Kellner’s (1995) ideas that suggest a contextualizing account of media cultural artifacts.

The analysis encompasses the audiovisual production as its corpus – telenovela and TV series – from Rede Globo produced from 2002 to 2012. However, bringing to bear complementary data, we reference other genres and formats as well. We argue that, while attention has been paid to the recent contesting of some of the negative stereotypes surrounding the underprivileged classes circulating within the media, they do not do justice to the complexities of social inequality in contemporary Brazil. We show that mainstream media treatments of social inequality focus entirely on showing the lifestyle of the underprivileged “working poor,” while overlooking many other aspects of social inequality and deprivation.