The rheological behavior of an emulsion is determined by microstructural changes caused by external loads. Some of these changes are irreversible due to the occurrence of the destabilization processes. Therefore, a deeper understanding of the system may be acquired by linking rheological characterization results with microscopic events. It is important to understand the rheological consequences of the occurrence of destabilization phenomena such as coalescence and flocculation. An experimental study was performed to verify the destabilization of samples during shear in a rheometer. Coalescence was assessed by measuring changes in the droplet size distribution functions, while the degree of flocculation was determined with the use of consecutive flow curves. Additionally, the occurrence of the non-equilibrium condition was studied. As a case study, the method developed in this paper was applied to a water-in-oil crude emulsion.

Nesta pesquisa investigaremos, de forma qualitativa e exploratória, as formas como um jogo educativo de programação motiva alunos quando jogado nas modalidade monojogador e multijogador. Faremos isso através de um Estudo de Caso, usando o paradigma Design Science Research, onde exporemos dois grupos de alunos voluntários de uma disciplina introdutória de programação (de nível superior) a uma implementação inédita de um jogo digital educativo de programação. Cada grupo terá acesso a uma das modalidade (mono ou multi jogador). Após essa interação, conduziremos entrevistas semi-estruturadas com os alunos e, sobre essas, uma análise de discurso. Com essa pesquisa esperamos contribuir para ampliar o entendimento desse tema pouco explorado.