RESUMO Objetivo: O objetivo deste estudo foi investigar a racionalidade substantiva inerente à prática do gerenciamento de impressões (GI). Originalidade/valor: Com base na taxonomia criada por Merkl-Davies e Brennan (2011), analisam-se: 1. a discussão sob o eixo da perspectiva sociológica; e 2. as ações de racionalidade substantiva do GI que podem se manifestar a partir de ações de gestão simbólica. Nesse sentido, este estudo atende ao chamado de Merkl-Davies et al. (2011) ao colocar em prática um modelo pouco convencional de análise a partir da utilização dos relatórios corporativos (anual e de sustentabilidade) da empresa JBS com especial atenção à Operação “Carne Fraca”. Design/metodologia/abordagem: Foi empreendida uma análise de conteúdo das narrativas contábeis dos relatórios corporativos da JBS entre o período de 2015 a 2018, à luz da estrutura conceitual de Merkl-Davies e Brennan. Resultados: As narrativas contábeis sugerem indícios de GI e da racionalidade substantiva. A racionalidade substantiva foi utilizada pelos preparadores dos relatórios corporativos a fim de legitimar as ações da companhia, sendo as manifestações dessa prática mais significativas no relatório de 2017, ano do evento Operação “Carne Fraca”. As implicações desta pesquisa residem em demonstrar evidências que direcionam as empresas quanto ao uso de narrativas contábeis para convencer a sociedade de suas ações condizentes com a estrutura de regras e normas sociais. Ademais, destacamos que as narrativas contábeis devem ser analisadas com cautela, uma vez que podem ser elaboradas sob a égide do comportamento oportunista do gestor.

ABSTRACT Objective: To investigate the substantive rationality inherent to the practice of impression management (IM). Originality/value: Based on the taxonomy created by Merkl-Davies and Brennan (2011), it is analyzed: 1. the discussion under the sociological perspective; and 2. the actions of substantive rationality in the management of impressions that can manifest through actions of symbolic management. This study responds to the call of Merkl-Davies et al. (2011) by putting into practice an unconventional analytical model based on the use of the corporate reports (annual and sustainability) of the company JBS with special attention to the “Carne Fraca” [Weak Meat] Operation. Design/methodology/approach: A content analysis of the accounting narratives of JBS’ corporate reports between 2015 and 2018 was carried out. Findings: Accounting narratives suggest evidence of IM and substantive rationality. The preparers of the corporate reports used substantive rationality to legitimize the company’s actions, with the most significant manifestations of this practice in the 2017 report, the year of the “Carne Fraca” operation. The implications of this research lie in demonstrating evidence that guides companies regarding the use of accounting narratives to convince society of their actions as consistent with the structure of social rules and norms. Furthermore, we emphasize that the accounting narratives must be analyzed with caution since they can be elaborated under the influence of the manager’s opportunistic behavior.

Old age is a risk factor for cancer development in humans and animals, and studies have shown that tumors in animals are acceptable models for studying human cancers, considering the similarities between their factors. This work was conducted in a 53-year-old captive female common hippo (Hippopotamus amphibious) with a left leg tumor and metastatic mass. Histopathological and immunohistochemical analyses were carried out with a final diagnosis of a high grade pleomorphic sarcoma. A proteomic study using mass spectrometry was added in order to identify further aspects of the primary tumor and metastasis which could improve our understanding, and each tissue showed a proteomic profile indicative of its pathologic state with significant differences between healthy tissue, primary and metastatic tumors. Low levels of β-actin in primary tumors were identified, and this may be associated with a possible consequence of cytoskeleton dynamic modification. In metastatic tissue, these dynamics may be affected by the presence of HSP chaperone 60.

Este trabalho teve o objetivo de caracterizar o diâmetro e a uniformidade das gotas e o perfil de distribuição volumétrica da ponta denominada antideriva de grande ângulo (ADGA) 110015, nas pressões de 207 e 310 kPa, para determinar o seu espaçamento na barra de pulverização. Os perfis de distribuição volumétrica para a altura de 50 cm foram avaliados em mesa de deposição. A partir dos perfis de distribuição, simulou-se o padrão de deposição ao longo da barra de pulverização. O espectro do diâmetro de gotas foi determinado em analisador de tamanho de partículas por difração laser. Pode-se concluir que a ponta ADGA 110015 apresentou perfil de distribuição do jato simétrico nas pressões de trabalho de 207 e 310 kPa. Na maior pressão, pode-se operar com menor altura da barra ou com as pontas mais espaçadas entre si, pois o maior ângulo de aspersão do jato resultou em diminuição do coeficiente de variação. Entretanto, o aumento da pressão proporcionou redução significativa no diâmetro das gotas, aumentando o potencial de cobertura do alvo, a suscetibilidade à deriva e à evaporação.

The aim of this work was to characterize the diameter and uniformity of droplets and volumetric distribution profile for no-drift and great angle nozzle (ADGA) 110015, at 207 and 310 kPa of pressure, to determine its spacing in the spray boom. The spray deposition was simulated from the distribution profiles. The droplet diameter spectrum was determined by laser diffraction. ADGA 110015 nozzle presented a symmetric volumetric distribution profile at 207 and 310 kPa. For this pressure, it is possible to operate with smaller height of the spray boom or with the nozzles more spaced to each other, because the largest angle of the spray resulted in a decrease of the variation coefficient. However, concerning to the drop diameter, a significant reduction was observed, increasing the potential of covering of the target and the susceptibility to drift and evaporation.

In the present work we review the existing evidence for a LPS-induced cytokine-mediated eosinophil accumulation in a model of acute inflammation. Intrathoracic administration of LPS into rodents (mice, rats or guinea pigs) induces a significant increase in the number of eosinophils recovered from the pleural fluid 24 hr later. This phenomenon is preceded by a neutrophil influx and accompanied by lymphocyte and monocyte accumulation. The eosinophil accumulation induced by LPS is not affected by inhibitors of cyclo or lipoxygenase nor by PAF antagonists but can be blocked by dexamethasone or the protein synthesis inhibitor cycloheximide. Transfer of cell-free pleural wash from LPS injected rats (LPS-PW) to naive recipient animals induces a selective eosinophil accumulation within 24 hr. The eosinophilotactic activity present on the LPS-PW has a molecular weight ranging between 10 and 50 kDa and its effect is abolished by trypsin digestion of the pleural wash indicating the proteic nature of this activity. The production of the eosinophilotactic activity depends on the interaction between macrophages and T-lymphocytes and its effect can not be blocked by anti-IL-5 monoclonal antibodies. Accumulated evidence suggest that the eosinophil accumulation induced by LPS is a consequence of a eosinophilotactic cytokine produced through macrophage and T-cell interactions in the site of a LPS-induced inflammatory reaction.