O museu na era da comunicação online

Dissertação de mestrado em Ciências da Comunicação (área de especialização em Publicidade & Relações Públicas)O presente trabalho de investigação tem como objectivo reflectir sobre o uso das novas tecnologias, nomeadamente da Internet, por parte dos museus, na promoção de bens e actividades junto de públicos específicos. A facilidade de distribuição e acesso a informações via Internet e a possibilidade de interacção, transformam-na numa autêntica ferramenta de comunicação. No final da problematização propomo-nos apresentar um estudo de caso sobre o Museu Nogueira da Silva, procurando ilustrar as respectivas estratégias de gestão de identidade organizacional, bem como as suas estratégias comunicacionais. Este museu tem, igualmente, procurado utilizar a Internet na comunicação com os seus públicos. Este trabalho é fruto de uma pesquisa assente sobretudo em leituras exploratórias, que visam diferentes áreas. Esta investigação recomenda a continuação de outras pesquisas, assim como a elaboração de um modelo, que procure analisar as estratégias de comunicação via Internet, desenvolvidas pelos museus.The present work is a reflection about the uses of the new technologies, namely the Internet, as a way to promote the cultural objects and activities of the museum near specific publics. It is quite easy to distribute and accede to information through the Internet. These aspects, connected with the possibility of interaction, make the Internet an authentic tool for communicate. In the end it is presented a case study about the Museum Nogueira da Silva, focusing their organizational identity strategies and communications strategies. This museum has also been looking for ways to use the Internet in the communication with their publics. This work is the result of a research that focused mainly exploratory readings, regarding different areas. This investigation recommends further research and the creation of a model to analyse the communications strategies through Internet, developed by museums

A method for Sampling Bernoulli Variables

We introduce new method for generating correlated or uncorrelated Bernoulli random variables by using the binary expansion of a continuous random variable with support on the unit interval. We show that when this variable has a symmetric probability density function around 12 , its binary expansion provides equiprobable bits over {0, 1}. In addition we prove that when the random variable is uniformly distributed over [0, 1], its binary expansion generates independent Bernoulli random variables. Moreover, we give examples where, by choosing some parameterized nonuniform probability density functions over [0, 1], samples of Bernoulli variables with specific correlation values are generated.Comment: 11 pages, 3 figure

Assessment of the Mutagenic Activity of Extracts of Brazilian Propolis in Topical Pharmaceutical Formulations on Mammalian Cells In Vitro and In Vivo

Propolis possesses various biological activities such as antibacterial, antifungal, anti-inflammatory, anesthetic and antioxidant properties. A topically applied product based on Brazilian green propolis was developed for the treatment of burns. For such substance to be used more safely in future clinical applications, the present study evaluated the mutagenic potential of topical formulations supplemented with green propolis extract (1.2, 2.4 and 3.6%) based on the analysis of chromosomal aberrations and of micronuclei. In the in vitro studies, 3-h pulse (G1 phase of the cell cycle) and continuous (20 h) treatments were performed. In the in vivo assessment, the animals were injured on the back and then submitted to acute (24 h), subacute (7 days) and subchronic (30 days) treatments consisting of daily dermal applications of gels containing different concentrations of propolis. Similar frequencies of chromosomal aberrations were observed for cultures submitted to 3-h pulse and continuous treatment with gels containing different propolis concentrations and cultures not submitted to any treatment. However, in the continuous treatment cultures treated with the 3.6% propolis gel presented significantly lower mitotic indices than the negative control. No statistically significant differences in the frequencies of micronuclei were observed between animals treated with gels containing different concentrations of propolis and the negative control for the three treatment times. Under the present conditions, topical formulations containing different concentrations of green propolis used for the treatment of burns showed no mutagenic effect in either test system, but 3.6% propolis gel was found to be cytotoxic in the in vitro test

Increasing the resistance of common bean to white mold through recurrent selection

White mold, caused by Sclerotinea sclerotiorum (Lib.) de Bary is one of the most important diseases of the common bean (Phaseolus vulgaris L.) worldwide. Physiological resistance and traits related to disease avoidance such as architecture contribute to field resistance. The aim of this study was to verify the efficiency of recurrent selection in physiological resistance to white mold, “Carioca” grain type and upright habit in common bean. Thirteen common bean lines with partial resistance to white mold were intercrossed by means of a circulant diallel table, and seven recurrent selection cycles were obtained. Of these cycles, progenies of the S0:1, S0:2 and S0:3 generations of cycles III, IV, V and VI were evaluated. The best (8 to 10) progenies of the seven cycles were also evaluated, in two experiments, one in the greenhouse and one in the field. Lattice and/or randomized block experimental designs were used. The traits evaluated were: resistance to white mold by the straw test method, growth habit and grain type. The most resistant progenies were selected based on the average score of resistance to white mold. Subsequently, they were evaluated with regard to grain type and growth habit. Recurrent selection allowed for genetic progress of about 11 % per year for white mold resistance and about 15 % per year for the plant architecture. There was no gain among cycles for grain type. Progeny selection and recurrent selection were efficient for obtaining progenies with a high level of resistance to white mold with “Carioca” grain type and upright habit

O TRABALHO INTERDISCIPLINAR DE GRADUAÇÃO E SEUS IMPACTOS NO APRENDIZADO SIGNIFICATIVO NO ENSINO SUPERIOR: UM ESTUDO DE CASO UNIBH

O presente artigo possui como objetivo ilustrar como o aprendizado significativo têm sido praticado no Centro Universitário de Belo Horizonte - UniBH (Brasil) por meio da instituição do Trabalho Interdisciplinar de Graduação como disciplina obrigatória durante todo o percurso formativo dos alunos em cursos de graduação. Para tanto, foi pesquisado sobre a atualização das matrizes curriculares dos cursos de graduação do UniBH a partir do segundo semestre de 2009 até o ano de 2015. O estudo de caso se apóia em uma análise documental assim como em entrevistas com os gestores acadêmicos responsáveis por tal atualização. A análise posteriormente descrita enfatiza os resultados positivos alcançados com a introdução do TIG na matriz curricular dos cursos do UniBH, dentre os quais destaca-se: a interdisciplinaridade entre conteúdos ministrados ao longo dos cursos; o engajamento imediato dos alunos na produção de conteúdo teórico-prático; o aumento intensivo no desenvolvimento de competências técnicas, acadêmicas e interpessoais ao longo de todo o percurso formativo dos alunos; conquistas e visibilidade nacionais aos projetos e soluções propostos por graduandos; assim como a dinamização das rotinas de gestão das Coordenações e a integração do corpo docente

Poultry shelf-life enhancing potential of nanofibers and nanoparticles containing Porphyra dioica extracts

Aqueous extracts of commercially available red macroalgae Porphyra dioica were integrated as inner coatings of food-grade polypropylene (PP) films through use of electrospinning and electrospraying technologies. Two coating formulations (A = 5 wt% P. dioica extract and 7.5 wt% polyvinyl alcohol (PVA); B = 1 wt% P. dioica extract, 1 wt% PVA, and 17% gelatine) were evaluated as to their capacity to delay spoilage of minced chicken breasts, through monitoring of microbial growth (total mesophile aerobic colony counts), colour stability, lipid oxidation (thiobarbituric acid reactive substances (TBARS)), and sensory analysis over a 4-day refrigerated storage. Scanning electron microscopy (SEM) imaging revealed an increased nanofiber and nanoparticle density on extract-enriched fibers, without compromise to their morphology or the homogeneity of the coatings. Total microbial counts on coating B samples was significantly (p < 0.001) reduced compared to uncoated plastic wraps. The coated samples also exhibited fewer colour degradation, though the coatings did not di er substantially from uncoated plastic wrap. Sensory analysis test subjects successfully distinguished the raw samples based on their treatment and gave a positive approval rating (66.7%) to the extract-enriched coatings when asked about edibility post storage.info:eu-repo/semantics/publishedVersio

Impact of educational intervention on cleaning and disinfection of an emergency unit

We aimed to evaluate the impact of an educational intervention on the surface cleaning and disinfection of an emergency room. This is an interventional, prospective, longitudinal, analytical and comparative study. Data collection consisted of three stages (Stage 1—baseline, Stage 2—intervention and immediate assessment, Stage 3—long term assessment). For the statistical analysis, we used a significance level of α = 0.05. The Wilcoxon and the Mann–Whitney test tests were applied. We performed 192 assessments in each stage totaling 576 evaluations. Considering the ATP method, the percentage of approval increased after the educational intervention, as the approval rate for ATP was 25% (Stage 1), immediately after the intervention it went to 100% of the approval (Stage 2), and in the long run, 75% of the areas have been fully approved. Stage 1 showed the existence of significant differences between the relative light units (RLU) scores on only two surfaces assessed: dressing cart (p = 0.021) and women’s toilet flush handle (p = 0.014); Stage 2 presented three results with significant differences for ATP: dressing cart (p = 0.014), women’s restroom door handle (p = 0.014) and women’s toilet flush handle (p = 0.014); in step III, there was no significant difference for the ATP method. Therefore, conclusively, the educational intervention had a positive result in the short term for ATP; however, the same rates are not observed with the colony-forming units (CFU), due to their high sensitivity and the visual inspection method since four surfaces had defects in their structure.publishersversionpublishe

Aqueous Extract of Brazilian Green Propolis: Primary Components, Evaluation of Inflammation and Wound Healing by Using Subcutaneous Implanted Sponges

Propolis is a chemically complex resinous bee product which has gained worldwide popularity as a means to improve health condition and prevent diseases. The main constituents of an aqueous extract of a sample of green propolis from Southeast Brazil were shown by high performance liquid chromatography/mass spectroscopy/mass spectroscopy to be mono- and di-O-caffeoylquinic acids; phenylpropanoids known as important constituents of alcohol extracts of green propolis, such as artepillin C and drupanin were also detected in low amounts in the aqueous extract. The anti-inflammatory activity of this extract was evaluated by determination of wound healing parameters. Female Swiss mice were implanted subcutaneously with polyesther-polyurethane sponge discs to induce wound healing responses, and administered orally with green propolis (500 mg kg−1). At 4, 7 and 14 days post-implantation, the fibrovascular stroma and deposition of extracellular matrix were evaluated by histopathologic and morphometric analyses. In the propolis-treated group at Days 4 and 7 the inflammatory process in the sponge was reduced in comparison with control. A progressive increase in cell influx and collagen deposition was observed in control and propolis-treated groups during the whole period. However, these effects were attenuated in the propolis-treated group at Days 4 and 7, indicating that key factors of the wound healing process are modulated by propolis constituents