251 research outputs found

    GESTÃO UNIVERSITÁRIA E INOVAÇÃO: UM ESTUDO IMPÍRICO EM UM HOSPITAL UNIVERSITÁRIO

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    Devido ao cenário competitivo global contemporâneo, a gestão universitária e a inovação é um tema que merece ser pesquisado em maior abrangência. Nesse sentido a pesquisa teve como objetivo contribuir para o entendimento da gestão universitária e da inovação no contexto hospitalar por meio da identificação das inovações realizadas em um hospital universitário. Sendo a inovação norteada pela habilidade de fazer relações, de visualizar oportunidades, nas instituições hospitalares esta age como meio de melhorar a qualidade e segurança dos serviços oferecidos para a população. Para que o objetivo proposto fosse atingido, optou-se pela abordagem qualitativa de natureza exploratória. Foram realizadas observações não participantes, e entrevistas com os gestores do hospital procurando identificar as suas percepções quanto às inovações realizadas. Os resultados demostraram que mesmo em um ambiente hospitalar universitário são realizadas várias inovações visualizando o bem estar do público interno e externo

    Determination of face normality parameters in radiographs of children under one year of age

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    Introdução: Realizar as medidas radiográficas do comprimento da face de amostra de crianças brasileiras do nascimento até um ano de vida para determinação de parâmetros radiográficos de normalidade. Materiais e Métodos: Foi realizada análise retrospectiva de radiografias simples de crânio para mensuração da face de crianças de até 12 meses em um hospital do sul do Brasil. Os exames foram realizados entre os anos de 2013 e 2018. Foram incluídas no estudo 170 radiografias cranianas de 85 crianças menores de um ano. Definidos parâmetros de mensuração, executados por três avaliadores e posteriormente comparados utilizando-se o coeficiente de correlação intraclasse e o teste ANOVA. Resultados: O coeficiente de correlação intraclasse foi alto, demonstrando a concordância dos examinadores e a reprodutibilidade das mensurações. Houve pequeno desvio padrão entre as medidas obtidas dos diferentes períodos etários. No geral, ocorreu crescimento da face estatisticamente significativo do primeiro ao terceiro trimestre. O crescimento foi menor e sem diferença estatisticamente significativa do terceiro para o quarto trimestre. Conclusão: Observou-se um aumento progressivo das dimensões dos ossos da face com o crescimento no primeiro ano de vida, especialmente nos primeiros 9 meses. A obtenção destes dados pode auxiliar na avaliação da normalidade para este período etário.Introduction: To perform face length measurements on radiographs of Brazilian children from birth to one year of age in order to determine radiographic parameters of normality. Materials and Methods: We performed a retrospective analysis of simple skull radiographs for face measurement of children up to 12 months of age taken in a southern Brazilian hospital between 2013 and 2018. In total, 170 skull radiographs of 85 children under one year of age were included in the study. Measurement parameters were defined, then performed by three evaluators, and later compared using intraclass correlation coefficient and analysis of variance. Results: The intraclass correlation coefficient was high, demonstrating interexaminer agreement and reproducibility of the measurements. There was a small standard deviation between the measurements obtained from the different age groups. In general, there was a statistically significant growth of the face from the first to the third trimester. The growth was smaller and with no statistically significant difference from the third to the fourth trimester. Conclusion: We observed a progressive increase in the dimensions of the facial bones with growth in the first year of life, especially in the first 9 months. Obtaining these data will assist in the assessment of normality for this age group

    The newly described Araguaian river dolphins, Inia araguaiaensis (Cetartiodactyla, Iniidae), produce a diverse repertoire of acoustic signals

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    This work was funded by the Rufford Foundation and Cetacean Society International. Gabriel Melo-Santos received a scholarship from the CAPES Foundation from the Brazilian Ministry of Education. Funding was also contributed by the Swarovski Foundation.The recent discovery of the Araguaian river dolphin (Inia araguaiaensis) highlights how little we know about the diversity and biology of river dolphins. In this study, we described the acoustic repertoire of this newly discovered species in concert with their behaviour. We analysed frequency contours of 727 signals (sampled at 10 ms temporal resolution). These contours were analyzed using an adaptive resonance theory neural network combined with dynamic time-warping (ARTwarp). Using a critical similarity value of 96%, frequency contours were categorized into 237 sound-types. The most common types were emitted when calves were present suggesting a key role in mother-calf communication. Our findings show that the acoustic repertoire of river dolphins is far from simple. Furthermore, the calls described here are similar in acoustic structure to those produced by social delphinids, such as orcas and pilot whales. Uncovering the context in which these signals are produced may help understand the social structure of this species and contribute to our understanding of the evolution of acoustic communication in whales.Publisher PDFPeer reviewe

    Selection of Conditions for Cellulase and Xylanase Extraction from Switchgrass Colonized by Acidothermus cellulolyticus

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    Solid-state fermentation has been widely used for enzyme production. However, secreted enzymes often bind to the solid substrate preventing their detection and recovery. A series of screening studies was performed to examine the role of extraction buffer composition including NaCl, ethylene glycol, sodium acetate buffer, and Tween 80, on xylanase and cellulase recovery from switchgrass. Our results indicated that the selection of an extraction buffer is highly dependent on the nature and source of the enzyme being extracted. While a buffer containing 50 mM sodium acetate at pH 5 was found to have a positive effect on the recovery of commercial fungal-derived cellulase and xylanase amended to switchgrass, the same buffer had a significant negative effect on enzyme extraction from solid fermentation samples colonized by the bacterium Acidothermus cellulolyticus. Xylanase activity was more affected by components in the extraction buffers compared to cellulase. This study demonstrated that extraction followed by diafiltration is important for assessing enzyme recovery from solid fermentation samples. Reduction in activity due to compounds present in the switchgrass extracts is reversible when the compounds are removed via diafiltration

    Limits on WWZ and WW\gamma couplings from p\bar{p}\to e\nu jj X events at \sqrt{s} = 1.8 TeV

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    We present limits on anomalous WWZ and WW-gamma couplings from a search for WW and WZ production in p-bar p collisions at sqrt(s)=1.8 TeV. We use p-bar p -> e-nu jjX events recorded with the D0 detector at the Fermilab Tevatron Collider during the 1992-1995 run. The data sample corresponds to an integrated luminosity of 96.0+-5.1 pb^(-1). Assuming identical WWZ and WW-gamma coupling parameters, the 95% CL limits on the CP-conserving couplings are -0.33<lambda<0.36 (Delta-kappa=0) and -0.43<Delta-kappa<0.59 (lambda=0), for a form factor scale Lambda = 2.0 TeV. Limits based on other assumptions are also presented.Comment: 11 pages, 2 figures, 2 table

    Search for New Physics in e mu X Data at D0 Using Sleuth: A Quasi-Model-Independent Search Strategy for New Physics

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    We present a quasi-model-independent search for the physics responsible for electroweak symmetry breaking. We define final states to be studied, and construct a rule that identifies a set of relevant variables for any particular final state. A new algorithm ("Sleuth") searches for regions of excess in those variables and quantifies the significance of any detected excess. After demonstrating the sensitivity of the method, we apply it to the semi-inclusive channel e mu X collected in 108 pb^-1 of ppbar collisions at sqrt(s) = 1.8 TeV at the D0 experiment during 1992-1996 at the Fermilab Tevatron. We find no evidence of new high p_T physics in this sample.Comment: 23 pages, 12 figures. Submitted to Physical Review

    Evidence of Color Coherence Effects in W+jets Events from ppbar Collisions at sqrt(s) = 1.8 TeV

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    We report the results of a study of color coherence effects in ppbar collisions based on data collected by the D0 detector during the 1994-1995 run of the Fermilab Tevatron Collider, at a center of mass energy sqrt(s) = 1.8 TeV. Initial-to-final state color interference effects are studied by examining particle distribution patterns in events with a W boson and at least one jet. The data are compared to Monte Carlo simulations with different color coherence implementations and to an analytic modified-leading-logarithm perturbative calculation based on the local parton-hadron duality hypothesis.Comment: 13 pages, 6 figures. Submitted to Physics Letters
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