RESUMO Objetivo: As mídias sociais tem se tornado uma ferramenta relevante, que pode ser usada para mais atividades do que simplesmente conectar parentes e amigos como, por exemplo, auxiliando a encontrar trabalho ou como um espaço para propaganda. O objetivo desta pesquisa é apresentar os benefícios da combinação dos tópicos Compartilhamento do Conhecimento, Mídias Sociais e teoria do Capital Social. Método: Revisão de literatura de vinte e dois artigos relevantes quando combinando os assuntos Mídias Sociais, Compartilhamento do Conhecimento e teoria do Capital Social. Os 22 artigos são submetidos a análise de conteúdo. Resultados: A análise da literatura revelou dois papéis fundamentais para as mídias sociais dentro das organizações - um papel operacional - funcionando como um canal ou ferramenta; um papel transformador - usado para apoiar a estratégia organizacional. Limitações da Pesquisa/Implicações : A limitação deste estudo está relacionada ao limitado número de artigos que resultaram da busca. Implicações Práticas: Os benefícios de combinar os três assuntos incluem melhorias na comunicação informal, melhor colaboração e cooperação e uma influência positiva no desempenho do trabalho e na inovação. Originalidade: Uma agenda de pesquisa é proposta para destacar a importância de investigações futuras sobre o compartilhamento de conhecimento tácito por meio das mídias sociais, focando em como gerar confiança pelas mídias sociais; sugere-se também atenção a pesquisas relacionadas à proteção do conhecimento.

ABSTRACT Purpose: The social media have become powerful tools that can be used to do much more than connecting relatives and friends, helping find a job or providing advertising space. This study aims to present the benefits of combining the subjects related to Knowledge Sharing, Social Media and Social Capital theory. Design/methodology/approach: Literature review of 22 papers identified as relevant when combining the subjects Social Media, Social Capital and Knowledge Sharing. The 22 documents were subjected of content analysis. Findings: The analysis of the literature revealed two fundamental roles for social media within organizations - an operational role - working as a channel or tool; a transformative role - used to support organizational strategy. Research limitations/implications: The limitation of this study is related to the limited number of papers that resulted from the search. Practical implications: The benefits of combining the three subjects include improvements on informal communication, better collaboration and cooperation, and a positive influence on job performance and innovation. Originality/value: The proposed research agenda highlights the importance of future investigations into the sharing of tacit knowledge through Social Media; focusing on how to generate trust via Social Media and suggests research attention related to knowledge protection.

Abstract The literature reports several potential applications of polymers prepared with high internal phase emulsions (HIPEs). However, the evaluation of these materials as supports for antimicrobial agents has not been explored. In this work, silver composites based on polyHIPEs were prepared. Initial studies indicated that these materials can be efficient to prevent biofilm formation. The silver composites were prepared in three steps. First, HIPEs based on styrene-divinylbenzene were polymerized by aqueous suspension polymerization. These particles showed surface areas of 18 and 48 m2/g. These polyHIPEs were sulfonated with concentrated sulfuric acid or acetyl sulfate and showed cation exchange capacities of 4.03 and 5.07 meq/g respectively. The sulfonated material was impregnated with silver ions, followed by reduction of the ions to prepare silver composites. These composites showed inhibition halos against E. coli and P. aeruginosa. and did not present adhesion of bacterial cells of K. variicola and S. aureus on their surface.

RESUMO As redes socais virtuais podem ser utilizadas como fontes de dados complementares aos tradicionais, pois ao examinar como as pessoas descrevem suas experiências pode-se entender o impacto da doença e seu tratamento. Buscou-se identificar e analisar o perfil, as percepções esentimentos de pessoas com câncer que interagem em rede social virtual. Trata-se de um estudo descritivo, qualitativo segundo a etnografia virtual. Foram utilizadas observação e entrevista semiestruturada. O processo analítico foi por meio da análise temática dos dados, sendo utilizado o software ATLAS TI 8 para organização dos dados. Participaram da pesquisa 18 sujeitos, de dois grupos do Facebook. A coleta teve início após a aprovação pelo Comitê de Ética,parecer no: 1.793.414. A partir dos relatos emergiram as categorias: motivações para o compartilhamento da vivência, sentimentos ao compartilhar experiências em rede social virtual, influência da rede social virtual nas percepções e conhecimentos sobre a doença e experiências vivenciadas a partir de publicações na rede social virtual. Os resultados, em geral, demonstram que as redes sociais influenciam de forma positiva no enfrentamento da doença, através do apoio mútuo, troca de experiências, expressão de sentimentos e conhecimento gerado.

ABSTRACT Virtual social networks may serve as information sources complementary to traditional ones, since analysis of the way in which people describe their experiences may lead to understanding the impact of the disease and its treatment. Our purpose was to identify and analyze the profile, perceptions and feelings of people with cancer who interact in virtual social networks. A descriptive qualitative study was conducted on the basis of virtual ethnography. Observations and semi-structured interviews were carried out. Thematic analysis of the data used the software ATLASTI 8 for their organization. Participants in the research were 18 subjects from two Facebook groups. Data collection started upon approval by the Ethics Committee. The following categories were drawn from the reports: motivations for sharing the experience; feelings experienced when sharing experiences in a virtual social network, influence of the virtual social network on perceptions of and knowledge about the disease; and experiences stemming from publications in the virtual social network. Results generally show that social networks positively influence the management of the disease via mutual support, the exchange of experiences, the expression of feelings and the knowledge generated.

RESUMEN Las redes sociales virtuales pueden ser utilizadas como fuentes de datos complementarias a los tradicionales porque, al examinar cómo las personas describen sus experiencias, se puede comprender el impacto de la enfermedad y su tratamiento. Intentamos identificar y analizar el perfil, las percepciones y los sentimientos de las personas con cáncer que interactúan en la red social virtual. Se realizó un estudio descriptivo, cualitativo, según la etnografía virtual. Se utilizaron observaciones y entrevistas semiestructuradas. El proceso analítico fue a través del análisis temático de los datos, utilizando el software ATLASTI 8 para su organización. Participaron de la investigación 18 sujetos de dos grupos de Facebook. La colección comenzó después de la aprobación del Comité de Ética. De los informes surgieron las siguientes categorías: motivaciones para compartir la experiencia; sentimientos al compartir experiencias en una red social virtual; influencia de la red social virtual en las percepciones y conocimiento sobre la enfermedad; y experiencias vividas a partir de las publicaciones en la red social virtual. Los resultados, en general, demuestran que las redes sociales influyen positivamente en el manejo de la enfermedad, a través del apoyo mutuo, el intercambio de experiencias, la expresión de sentimientos y el conocimiento generado.

Resumo: Vive-se numa economia baseada no conhecimento onde a socialização que acontece através das redes de relacionamento é chave na construção desse conhecimento. O objetivo desta pesquisa é explorar o estado da arte sobre Gestão do Conhecimento em times dentro das organizações e em conjunto com a teoria do Capital Social. Para atingir o objetivo proposto, foi realizada uma revisão sistemática de literatura com trinta e três artigos – trinta com pesquisa empírica e três artigos teóricos. A contribuição acadêmica se dá principalmente pela identificação de oportunidade de pesquisas futuras relacionada ao entendimento da atuação do Capital Social e Gestão de Conhecimento em times que utilizam métodos ágeis para execução do trabalho. As contribuições técnicas para gestores de time e de projetos são apresentadas por meio da consolidação de fatores que foram identificados ou suportados pelas pesquisas como influenciadores da performance, aprendizado e melhoria de processos entre outros.

Abstract: We live in an economy based on knowledge where the socialization that takes place through relation networks is the key in the construction of this knowledge. The aim of this research is to explore the state of the art of Knowledge Management in teams inside organizations and in conjunction with the theory of Social Capital. To achieve the proposed aim, a systematic review of literature, using thirty three articles – thirty with empirical research and three theoretical articles – was carried out. The academic contribution is the understanding of the operation of Social Capital and Knowledge Management in teams that make use of agile methods in carrying out work. The technical contributions for team and project managers are presented through consolidation of factors that were identified or supported by the research as influencing performance, learning, and improvement of processes, among others.

Abstract Copolymers based on glycidyl methacrylate (GMA) are considered attractive as sorbents because the epoxy groups can be easily converted into other groups. Studies involving the influence of the synthesis parameters on the morphological characteristics of these copolymers are scarce. This work investigates the synthesis of copolymers of poly(GMA-co-EGDMA) with different porosity degrees obtained by varying the synthesis parameters. GMA-EGDMA copolymers were synthesized by suspension polymerization employing varied conditions and characterized by measuring apparent density, surface area and pore volume distribution, optical and scanning electron microcopies, FT-IR, thermogravimetry and titration of epoxide rings. The copolymer with highest surface area and pore volume (260.4 m2/g and 0.5 cm3/g) was prepared employing cyclohexane as diluent, 80% EGDMA in monomeric composition and 100% of dilution degree. There was a relation between the epoxide content of the copolymers determined by titration and the residue content formed in the first decomposition stage.

Abstract Several smart cities initiatives are currently underway around the world, and this trend is expected to grow in the coming years. Such initiatives should be designed according to the needs and conditions of each municipality, with the aim of expanding or generating public value for stakeholders. This paper analyzes the results obtained from a first evaluation cycle of the Smart Cities MethodoLogy and its components (a reference model and an assessment method), developed based on a Public Value perspective, in a study conducted within the Design Science epistemological paradigm and Design Science Research method. The artifacts developed to solve the identified problem were evaluated, based on the perceptions reported by representatives of the Quadruple Helix (government, industry, academia and citizens) from different knowledge areas. The results of this first evaluation cycle allowed for improvements to be made to the initial versions of the three artifacts and the perceptions obtained indicated they can aid in the design and evaluation of smart cities by bringing together supposed intelligent best practices that generate public value, thus constituting a scientific contribution of a prescriptive nature.

Objectives: Evaluate risk factors and clinical outcomes of infections caused by Enterobacteriaceae resistant to third-generation cephalosporins present in samples collected upon hospital admission.Methods: Risk factors were evaluated using a 1:2 ratio case-control study. Influence of resistance on the appropriateness of antibiotic therapy, length of stay, and hospital mortality were prospectively evaluated. Characteristics independently associated with the presence of resistant enterobacteria were assessed by logistic regression.Results: Enterobacteria resistant to third-generation cephalosporins were quite common (26.0%). Male gender (OR: 2.66; 95% CI, 1.17-5.06; p= 0.019), invasive prosthesis (OR: 3.79; 95% CI, 1.29-11.08; p= 0.015), previous use of cephalosporins (OR: 2.77; 95% CI, 1.10-6.97; p= 0.029) and hospitalization in the last 6 months (OR: 5.33; 95% CI, 2.29-12.44; p< 0.001) were independently associated with the presence of these microorganisms. These bacteria were associated with higher frequency of inappropriate antimicrobial therapy, worse clinical response, and longer length of stay. Finally, older age, admission to the ICU, and site of infection other than urinary tract were independently associated to higher hospital mortality.Conclusions: Risk factors identified in this study may help in the choice of empirical antibiotic therapy for infected patients suspected of harboring these bacteria and in the early implementation of measures to avoid the spread of these bacteria in the hospital environment.