4,976 research outputs found

    Oxygen Transfer In The Solid-state Cultivation Of D. Monoceras On Polyurethane Foam As Na Inert Support

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    In recent years, there has been a resurgence of interest concerning solid-state cultivation processes due to a number of advantages over submerged cultivation. However, studies on oxygen transfer and the performance of bioreactors are lacking. Processes that use inert supports loaded with chemically-defined liquid media have several potential applications and offer numerous advantages, such as improved process control and monitoring and enhanced process consistency compared with cultivation on natural solid substrates. The aim of this research was to study the oxygen transfer for the production of allergenic proteins from a biomass of Drechslera (Helminthosporium) monoceras cultured in a packed-bed reactor filled with polyurethane foam. The results show that a high protein concentration can be produced on an inert support with a high overall oxygen transfer coefficient (K(L)a) during cultivation.33479379911th Latin American Symposium on Anaerobic Digestion (DAAL)2014Havana, CUB

    Cancer diagnosis disclosure from Portuguese physicians

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    OBJECTIVE: Doctor-patient communication in oncology, particularly concerning diagnostic disclosure, is a crucial factor related to the quality of the doctor-patient relationship and the psychological state of the patient. The aims of our study were to investigate physicians' opinions and practice with respect to disclosure of a cancer diagnosis and to explore potential related factors. METHOD: A self-report questionnaire developed for our study was responded to by 120 physicians from Coimbra University Hospital Centre and its primary healthcare units. RESULTS: Some 91.7% of physician respondents generally disclosed a diagnosis, and 94.2% were of the opinion that the patient knowing the truth about a diagnosis had a positive effect on the doctor-patient relationship. A need for training about communicating with oncology patients was reported by 85.8% of participants. The main factors determining what information to provide to patients were: (1) patient intellectual and cultural level, (2) patient desire to know the truth, and (3) the existence of family. SIGNIFICANCE OF RESULTS: Our results point to a paradigm shift in communication with cancer patients where disclosure of the diagnosis should be made part of general clinical practice. Nevertheless, physicians still experience difficulties in revealing cancer diagnoses to patients and often lack the skills to deal with a patient's emotional responses, which suggests that more attention needs to be focused on communication skills training programs

    Hydrodynamic model intercomparison for the patos lagoon (Brazil)

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    An intercomparison study is carried out between two models with different formulations and spatial discretizations in order to overcome the limitations posed by the standard calibration and validation procedures and improve confidence in the hydrodynamic results for the Patos Lagoon. Numerical simulations were carried out applying the TELEMAC and MOHID models, based on the same boundary conditions and identical calibration coefficients so differences in calculated flow conditions result from the formulations and parameterizations of each model. Results from both models are compared with measurements from three stations inside the lagoon. Preliminary results indicate that both models compare well with the measurements and with each other. These results increase the confidence on hydrodynamic results for the Patos Lagoon and provide the first step towards water quality studies for the area

    Oxygen transfer in the solid-state cultivation of D. Monoceras on polyurethane foam as an inert support

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    In recent years, there has been a resurgence of interest concerning solid-state cultivation processes due to a number of advantages over submerged cultivation. However, studies on oxygen transfer and the performance of bioreactors are lacking. Processes that use inert supports loaded with chemically-defined liquid media have several potential applications and offer numerous advantages, such as improved process control and monitoring and enhanced process consistency compared with cultivation on natural solid substrates. The aim of this research was to study the oxygen transfer for the production of allergenic proteins from a biomass of Drechslera (Helminthosporium) monoceras cultured in a packed-bed reactor filled with polyurethane foam. The results show that a high protein concentration can be produced on an inert support with a high overall oxygen transfer coefficient (KLa) during cultivation334793799CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESsem informaçã

    A RAPD-PCR-based genetic diversity analysis of Helicoverpa armigera and H. zea populations in Brazil.

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    Therefore, the aim of this study was to determine the genetic diversity of H. armigera and H. zea populations by RAPD-PCR analysis. The most important result was the clustering of one H. armigera population in a group predominantly formed by H. zea. It could indicate a possible occurrence of an interspecific cross between these species. This is a concern to Brazilian agriculture due to the possibility of selection of hybrids well adapted to the American environment, which would be inherited from H. zea

    Saúde Brasil 2011 : uma análise da situação de saúde e a vigilância da saúde da mulher

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    Introdução: No Brasil, ocorrem cerca de 3 milhões de nascimentos ao ano, sendo grande parte deles por meio de cesarianas. Entender como se distribui esse procedimento no País é relevante para a reflexão sobre o papel das políticas públicas nesse contexto. Objetivos: a) Descrever: magnitude e tendência da taxa de cesáreas*1 no País; morbimortalidade materna e neonatal associada a tipo de parto; e características dos hospitais; b) analisar o preenchimento das variáveis da nova versão da Declaração de Nascido Vivo (DNV) que permitirão monitoramento das indicações de cesárea; c) descrever as respostas institucionais para o enfrentamento do problema. Métodos: Estudo descritivo de série histórica da taxa de cesarianas, no País e macrorregiões, segundo características sociodemográficas, morbimortalidade e tipo de provedor, com fonte em bancos de dados oficiais. Analisou-se a completitude de variáveis da versão da DNV de 2010 para monitoramento das indicações de cirurgia. Foram pesquisados documentos oficiais, visando identificar iniciativas para qualificar a atenção a partos e nascimentos e reduzir cesarianas desnecessárias. Resultados: A taxa de cesarianas foi de 32%, em 1994, e de 52%, em 2010, sendo menor no Norte e Nordeste. Mulheres submetidas a cesáreas tiveram 3,5 vezes mais probabilidade de morrer (entre 1992–2010) e 5 vezes mais de ter infecção puerperal (entre 2000–2011) que as de parto normal. No período, a proporção de prematuros se elevou, mais nas cesáreas (7,8%, sendo 6,4% nos partos normais em 2010). Em 2010, hospitais não públicos apresentaram taxas maiores (63,6%) e maior aumento no período de 2006 a 2010 (14,0%); para os públicos, as taxas foram de 47,8% (federais), de 39,6% (estaduais) e de 34,0% (municipais). Conclusão: A cesariana é frequente e sua proporção ascende no País, sendo muito elevada no setor de Saúde Suplementar. Para reverter essa tendência, serão necessárias várias medidas, incluindo a qualificação da informação para monitorar a efetividade das medidas propostas
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