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Purpose The purpose of this paper is to analyze the urban resilience capacity and its relations with the economic, social and environmental well-being in smart cities in the state of São Paulo (SP), particularly after the 2008 financial crisis. Design/methodology/approach Concerning its objectives, this study is characterized as descriptive. From the point of view of technical procedures, the research is bibliographic, and regarding data collection, it is documental. The approach of this research is quantitative, since it uses the statistical method. The sample was made up by 62 smart cities located in SP. The analysis comprised the period from 2010 to 2015. Findings The urban resilience pillars influence the economic well-being represented by the gross national product, in 58.8 percent, social well-being represented by the life expectancy of the residents of the smart cities, in 71.7 percent, and in environmental well-being indicated by CO2 emissions, in 21.5 percent. Research limitations/implications They are related to the researchers’ decision about the methodological design. Practical implications This study was limited to smart cities in SP listed in the RBCIH (Brazilian Network of Human Smart Cities), and may be extended to other cities in other Brazilian states. Social implications How resilience dimensions related to economic, social and environmental well-being such as poverty, food security, health, well-being, education quality, climate changes, and the like, were measured, which can be investigated in future research studies. Originality/value Despite its growing popularity worldwide, the urban resilience pillars and their relationship with human well-being in smart cities in the national context are little investigated, making this research original.

The use of bibliometrics, based on statistical and mathematical tools, makes it possible to measure the contributions of researchers to science. This is a widely used tool to assess scientific production in several areas of knowledge. Such methodology analyzes publication trends, author networks, structures of co-citation, journals and even the scientific contribution of renowned scholars in science. The precursor of bibliometrics, Eugene Garfield, who proposes the retrieval of information from the indexing of citations, was the object of a scientometric review aimed at assessing his impact on science. Given such relevance, this article presents the academic contribution of Jürgen Habermas based on a preliminary scientometric review of his studies. Jürgen Habermas is regarded not only as an active scholar in the social and political process, but also as a productive, controversial and influential contemporary author. The correct understanding of his works is a great challenge, as the bases of his thinking are so broad that they allow an interface between different approaches. We elaborated a design of his scientific work with the advancement to a connection between his main ideas through the use of bibliometric software. Bibliometrics, of the scientometric type, allows the understanding of how recognized patterns in citations can develop information relevant to the scientific field. The results confirm the multidisciplinary contribution of Habermas’s studies and highlight his main fields of research and works, which serve as a foundation for clearly understanding and applying his concepts.

Highly branched alkoxysilane (HB) units were prepared in situ via a Michael-type reaction between pentaerythrithol triacrylate and aminopropyltriethoxysilane. These units were used as an inorganic component for the modification of cellulose acetate (CA) films using the sol-gel process. The thermal and dynamic-mechanical behaviors, the morphology, and the dimensional stability of the modified CA films were analyzed. The siloxanemodified CA films showed thermal stability similar to pure CA, but the residue content at 900 C increased with the addition of HB units. The morphology of these films was characterized by siloxane nanodomains dispersed in the CA matrix, with good interfacial adhesion between the phases. Moreover, the CA/siloxane nanocomposite films showed improved dimensional stability in comparison with CA, i.e., in the presence of HB, the dimensional change was reduced to around 50% of the value observed for pure CA. Finally, a complex dynamic-mechanical behavior was obtained for the nanocomposite films, as a consequence of the heterogeneous morphology.

PurposeThe purpose of the article is to analyze the influence of output control, autonomous motivation and controlled motivation on task performance of public servants at home office owing to the COVID-19 pandemic.Design/methodology/approachA survey was conducted based on the perception of 236 public servants, and structural equation modeling (SEM) technique was used for data analysis.FindingsBoth autonomous motivation and output control are positively and significantly related to task performance.Research limitations/implicationsThe present study expands the literature with information about individual performance and management control, which can be related to the control, motivation and task performance of public servants at home office in a pandemic context.Practical implicationsThe results could offer a basis for understanding how managers can deal with the challenges while at home office. They can also provide managers with information that they can use to build management strategies to foster the performance of public servants at home office.Social implicationsHome office can decrease commuting to a central workplace, alleviate traffic problems and reduce car pollution. It also allows for business continuity in the face of storms and pandemics.Originality/valueMost studies about home office, COVID-19 and task performance have addressed personal, professional and organizational characteristics. However, little is known about the analysis of combinations of the following constructs: output control, autonomous and controlled motivations, and how both affect task performance of public servants.

; Maria do Carmo Gonçalves 4 ResumoAs propriedades mecânicas dos compósitos dependem fortemente da natureza da interface carga-matriz polimérica. Uma interface que apresenta forte ligação entre a carga e a matriz geralmente contribui para melhores propriedades mecânicas dos compósitos. Neste trabalho foi utilizado o polipropileno, PP, como matriz polimérica e como carga empregou-se fibras curtas de sílica, FS, que é um produto constituído de sílica biogênica amorfa. Com a finalidade de promover melhor adesão interfacial carga-matriz, os compósitos preparados com FS foram comparados com os similares obtidos com fibras previamente modificadas com viniltrimetoxissilano. Todos os compósitos foram preparados por processos de extrusão e moldagem por injeção, sendo suas propriedades mecânicas avaliadas por ensaios mecânicos de tração, segundo a norma ASTM D 268, utilizando-se um planejamento fatorial fracionário 2 5-1 . Os fatores estudados foram composição da fibra na matriz, modificação superficial da fibra, degasagem, fluxo de injeção e velocidade de ensaio de tração. A superfície de fratura criogênica dos compósitos foi investigada por microscopia eletrônica de varredura com fonte de emissão de campo, FESEM. A modificação das fibras promoveu uma melhor adesão interfacial fibra-matriz, o que resultou em propriedades mecânicas otimizadas em relação aos compósitos similares obtidos com fibras naturais, indicando ser este o fator mais importante para o melhor desempenho mecânico dos compósitos. Palavras-chave: Fibras curtas de sílica. Polipropileno. Planejamento fatorial fracionário. AbstractThe mechanical properties of composites strongly depend on the type of filler-polymeric matrix interface. An interface characterized by a strong bond between the filler and the matrix generally results in better mechanical properties. In this work, polypropylene, PP, was used as polymeric matrix and silica short fibers, SF, which are amorphous biogenic silica, were employed as filler. In order to promote a better filler-matrix interfacial adhesion, these fibers were previously modified with vinyltrimethoxysilane. The composites were prepared by extrusion and injection molding processes and their mechanical properties were evaluated according to tensile testing, ASTM D 268, by means a fractional factorial design (2 5-1 ). The studied factors included fiber content in the matrix, fiber surface modification, injection flow and testing rate. The composite cryogenic fractured surfaces were investigated by field emission scanning electron microscopy, FESEM. The fiber modification promoted a better fiber-matrix interfacial adhesion, resulting in optimized mechanical properties in relation to the others. In this way, the fiber modification was the most important factor on the mechanical performance of the composites.

<p>Este estudo teve por objetivo examinar quais são os reflexos das falhas cognitivas no uso da internet por parte dos servidores públicos federais na satisfação do <em>design </em>de conteúdo, na satisfação do <em>design </em>de interface e desses tipos de <em>design </em>no valor de utilidade percebida e na intenção de continuidade do uso dos sistemas <em>e-learning </em>adotados nos cursos de aperfeiçoamento. Para tanto, realizou-se uma pesquisa descritiva, com abordagem quantitativa e dados coletados a partir de um <em>survey </em>aplicado a 50 servidores públicos de um hospital universitário federal localizado na Região Centro-Oeste do Brasil. Para testar as hipóteses, aplicou-se a técnica de equações estruturais. Os resultados indicaram que o valor de utilidade percebida afeta positivamente a intenção de continuidade do uso, porem, não foi possível confirmar que a falha cognitiva na internet afeta negativamente a satisfação do individuo com o <em>design </em>de conteúdo e com o <em>design </em>de interface do sistema <em>e-learning</em>, nem que a satisfação com o <em>design </em>de conteúdo e o <em>design </em>de interface afeta positivamente o valor de utilidade percebida. Em tempos de limitações financeiras, especialmente no setor público, os sistemas <em>e-learning </em>possibilitam que o treinamento atinja diversas forças de trabalho dispersas geograficamente, tornando-se ferramentas populares para facilitar processos de ensino e aprendizagem que viabilizam um aprendizado flexível.</p>

Este estudo investigou os impactos da nova rotina de cuidado com os filhos sobre as atividades profissionais, vivenciada por mães em home office, com filhos de até 12 anos de idade, em meio ao contexto da crise de Covid-19. Realizou-se uma pesquisa qualitativa por meio de entrevistas semiestruturadas com 12 sujeitas de pesquisa e, após, aplicou-se o método de análise de conteúdo temática. A pesquisa revelou a intensificação da sobrecarga de trabalhos domésticos e de cuidado com os filhos quando acumulados com atividades profissionais remuneradas. Observou-se que sentimentos de medo e angústia, que marcaram o início da pandemia, se trasformaram em sensações de cansaço mental e estresse, provocados, sobretudo, pela impossibilidade de estabelecimento de uma rotina e pelo compartilhamento de um único espaço para as várias esferas da vida. Este trabalho destacou como um contexto de pandemia evidencia ainda mais a situação de desigualdade já existente entre homens e mulheres. As mulheres, mesmo inseridas em espaços públicos de trabalho profissional remunerado, anteriormente dominados pelo sexo masculino, precisam se desdobrar em inúmeras obrigações domésticas e cuidado com os filhos, tradicionalmente associadas a elas. Nesse sentido, o artigo pode contribuir para ampliar o debate acerca das vantagens e desafios de mães que trabalham em home office. O trabalho remoto, apesar de trazer a vantagem de as mães poderem acompanhar os filhos e estarem mais presentes, deve ser avaliado de forma mais ampla, uma vez que a sobrecarga mental e o estresse podem acarretar perdas de qualidade daqueles momentos aparentemente prazerosos.