This work presents a Systematic Literature Review on the relationship between on the Internet of Things and Education with Collaborative Learning from the search of articles and studies, in four scientific databases, approaching the following research question: "What solutions, created in the last 10 years, have practically applied the Internet of Things in Education with Collaborative Learning?"following a defined methodology, it has found 33 primary studies that were analyzed and discussed.Resumo. Este trabalho apresenta uma Revisão Sistemática da Literatura sobre a relação entre a Internet das Coisas e a Educação com Aprendizagem Colaborativa a partir da busca de artigos e estudos, em quatro bases de dados científicos, obedecendo a seguinte questão de pesquisa: "Quais soluções, criadas nosúltimos 10 anos, aplicam na prática o conceito de Internet das Coisas na educação com Aprendizagem Colaborativa?". Seguindo uma metodologia definida, encontrou-se 33 estudos finais que foram analisados e discutidos.
Brazil was one of the largest cocoa producers in the world, mainly supported by the South of Bahia region. After the 1980s, the witch-broom disease demolished plantations, and farmers were forced into bankruptcy. The worldwide search for gourmet cocoa has rekindled interest in this production, whose fermentation process is a key step in obtaining fine cocoa, thanks to the fact that many processing properties and sensory attributes are developed in this phase. This article presents a blockchain-IoT-based system for the control and monitoring of these events, aiming to catalog in smart contracts valuable information for improvement of the cocoa fermentation process, and future research. Blockchain is used as a distributed database that implements an application-level security layer. A proof of concept was modeled and the performance of the emulated system was evaluated in the OMNet simulator, where a technique based on the SNMP protocol was applied to reduce the amount of data exchanged and resources served/consumed in this representation. Then, a physical platform was developed and preliminary experiments were performed on a real farm, as a way to verify the improvement of the cocoa fermentation process when using a technological approach.
Blockchain is a disruptive technology that offers a digital trust network for carrying out transactions between peers. Smart contracts are codes hosted on the blockchain and establish contractual clauses to be followed. In this mini-course, we present the fundamental concepts, mechanisms, and platforms used by these technologies, to develop in their participants the needs for implementing required and distributed Web applications (DApps). For this, we will demonstrate, through practical exercises, a model for implementing smart contracts interacting with Web systems, in addition to discussing the advances, opportunities, and challenges in research related to this area of knowledge.
ResumoA blockchain é uma tecnologia disruptiva que oferece uma rede de confiança digital para a realização de transações entre pares. Os contratos inteligentes são códigos hospedados na blockchain e estabelecem cláusulas contratuais a serem seguidas. Neste minicurso, apresentamos os conceitos fundamentais, os mecanismos e as plataformas utilizadas por estas tecnologias, de forma a desenvolver em seus participantes as competências necessárias à implementação de aplicações Web confiáveis e distribuídas (DApps). Para isto, demonstraremos, através de exercícios práticos, um modelo de implementação de contratos inteligentes interagindo com sistemas Web, além de discutirmos os avanços, as oportunidades e os desafios em pesquisas relacionadas a esta área do conhecimento.
IntroduçãoEste capítulo tem como objetivo desenvolver competências na criação de sistemas web integrados com blockchain e contratos inteligentes, com foco na plataforma Ethereum,
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