Construction of the dispositions of institutional habitus in the academic field

This paper describes the main phases of development of an Institute of Chemistry in relation with national policy from the academic field. Its history begins with a proposal to meet the demand for chemistry teacher education and goes on to become a major center for research, education and extension. Throughout its 50 years of history, the Institution has faced numerous challenges by adopting strategies that have established and revealed its institutional habitus. To this end, we use some of René Kaës’s concepts about the development of groups and institutions, highlighting mainly the origins, expectations and covenants that underpinned its foundation, and the entire process of its expansion and institutionalization. Our main focus, also interpreted based on the theory of Pierre Bourdieu and followers, is the establishment of its institutional habitus, i.e., how it interprets and organizes its institutional teaching, research and extension activities within the context of the academic field. The peculiarity of the process has been the mismatch between internal and external pressures. Even though presenting the results of a case study, in general, our methodology can improve the understanding of institution’s development in relation with educational policy.

A propaganda institucional como instrumento das relações públicas: análise semiótica da campanha comemorativa aos 60 anos da Petrobras

The developed research aims to analyze clippings of Petrobras' commemorative 60th anniversary campaign, entitled Gente, é o que inspira a gente., launched in 2013, using concepts of institutional advertising from the perspective of semiotics. The company was chose due to its traditionalism and strength within and outside the country, being one of the 20 largest in the world. During the study, it will be covered topics such as organizational communication and institutional advertising. From analyzing three parts of the Campaign, which aims to influence public opinion about the organization, associating her concepts or images that benefit the way Petrobras is seen. To analyze the effectiveness and efficiency of the campaign, it was chosen as methodological method, the semiotic studies of Charles Peirce, with his concepts of firstness, secondness and thirdness. This approaching intention of its audience is clear in this campaign not only with the participation of employees and signs that compose it, but also with the dissemination of information about the company, such as history, data, policies, methods and services provided, transmitting effectively its essence as a company, through its mission, vision and explicit and implicit values in messages

Durable bonds at the adhesive/dentin interface: an impossible mission or simply a moving target?

Composite restorations have higher failure rates, more recurrent caries and increased frequency of replacement as compared to dental amalgam. Penetration of bacterial enzymes, oral fluids, and bacteria into the crevices between the tooth and composite undermines the restoration and leads to recurrent decay and failure. The gingival margin of composite restora tions is particularly vulnerable to decay and at this margin, the adhesive and its seal to dentin provides the primary barrier between the prepared tooth and the environment. The intent of this article is to examine physico-chemical factors that affect the integrity and durability of the adhesive/dentin interfacial bond; and to explore how these factors act synergistically with mechanical forces to undermine the composite restoration. The article will examine the various avenues that have been pursued to address these problems and it will explore how alterations in material chemistry could address the detrimental impact of physico-chemical stresses on the bond formed at the adhesive/dentin interface.