Caracterização de acessos Paspalum para sistemas intensivos de produção no Estado de São Paulo:exigências nutricionais.

Editores técnicos: João de Mendonça Naime, Caue Ribeiro, Maria Alice Martins, Elaine Cristina Paris, Paulino Ribeiro Villas Boas, Ladislau Marcelino Rabello

Parcerias público-privadas e gestão escolar pública

Este artigo representa um esforço de sistematização de resultados de estudos e pesquisas realizadas pelo Grupo Observe da Universidade Federal do Pará entre 2008 e 2011, cujo objetivo foi analisar a gestão das escolas públicas paraenses que firmaram parcerias público-privadas com o Instituto Ayrton Senna. O que foi realizado por meio de uma metodologia quali-quantitativa, com a utilização de observação não participante e entrevistas semiestruturadas, tratando-se de um estudo de caso. Do conjunto das análises efetuadas, podemos dizer que as parcerias firmadas na educação do Pará não vêm demonstrando ganhos de democratização das relações de poder, nem ampliação dos direitos de cidadania. Ao contrário, estão, em tese, reforçando o individualismo, a competição.Palavras-chave: parcerias público-privadas, democratização da gestão, escola pública."Public-private partnerships and"Public school managementThis article represents an effort to systematize the results of studies and research carried out by the Group Notice of Federal University of Pará from 2008/2011, whose aim was to analyze the management of public schools that signed paraenses public-private partnership with Instituto Ayrton Senna, by through a qualitative and quantitative methodology with the use of non-participant observation and semi-structured interviews from the case study. Of all analyzes performed can say that the partnerships in education Pará not been showing gains of democratization of power relations, or expansion of citizenship rights. Rather, they are, in theory, reinforcing individualism, competition.Keywords: public-private partnerships, management democratization, public schoo

Simulation of VUV electroluminescence in micropattern gaseous detectors: the case of GEM and MHSP

Electroluminescence produced during avalanche development in gaseous avalanche detectors is an useful information for triggering, calorimetry and tracking in gaseous detectors. Noble gases present high electroluminescence yields, emitting mainly in the VUV region. The photons can provide signal readout if appropriate photosensors are used. Micropattern gaseous detectors are good candidates for signal amplification in high background and/or low rate experiments due to their high electroluminescence yields and radiopurity. In this work, the VUV light responses of the Gas Electron Multiplier and of the Micro-Hole Strip Plate, working with pure xenon, are simulated and studied in detail using a new and versatile C++ toolkit. It is shown that the solid angle subtended by a photosensor placed below the microstructures depends on the operating conditions. The obtained absolute EL yields, determined for different gas pressures and as functions of the applied voltage, are compared with those determined experimentally.Comment: Accepted for publication in Journal of Instrumentatio

Animal protein-based soft materials for tissue engineering applications

Proteins have long been used in coatings for cell culture plates and to supplement cell culture media. Due to their unmatched biocompatibility, biodegradability, bioactivity and immune-privilege, the interest in proteins rapidly advanced for the design and engineering of more complex substrates for biomedical applications. In this chapter, the proteins typically used in the design and fabrication of biomedical devices are presented and discussed, with particular focus in human-based platforms. However, restrictions in the use of protein-derived materials are associated with their limited processability and stability, but to overcome this, multiple bioconjugation techniques have been described and are herein presented. An overview of current protein-based materials that have found clinical application and that have been commercialized is also provided.publishe

Condições meteorológicas e sua influência na vindima de 2011 no Rio Grande do Sul.

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Terapêutica intravesical com bacilo de Calmette-Guérin no tratamento do carcinoma da bexiga / o que sabemos até agora

AbstractIntroductionThe use of intravesical Bacillus Calmette-Guérin is a valid option in the treatment of non-muscle invasive bladder tumors, making it the main subject of a lot of publications. The aim of the present study is to review and consolidate the data available about this subject.MethodsA review of the data available was made on PubMed with the keywords: “intravesical BCG” and “non-muscle invasive bladder cancer”. Original and review articles written in English or Portuguese were selected. We present the discussion alongside the results for structural purposes.Results and discussionScientific evidence strongly advises in favor of BCG use on intermediate and high risk tumors, due to its impact on the recurrence and possibly on the progression rates. It is important to be watchful for possible local and systemic side effects, that when detected call for a rightful therapeutically decision alongside the recommended schemes.ConclusionThe use of intravesical BCG with therapeutically purposes has strong evidence on the non-muscle invasive bladder tumors. More studies are needed in order to better understand the best administration scheme and its mechanism of action

Detection of graves using the micro-resistivity method

This paper describes a case history of the application of resistivity methods on the detection of a tomb tentatively associated with Damião de Goes, a prominent Portuguese humanist who lived in the XVI century. The survey carried out inside Varzea Church comprised dipole-dipole, gradient and pole-pole arrays. The results obtained from the 2D inversion of dipole-dipole data and 3D inversion of the gradient array have shown high resistivity anomalies that were assigned to the walls of the tomb. The low resistivity anomalies observed in between were interpreted as due to the presence of water enriched by ions from the decomposition of human bodies. This result is corroborated by the imaging obtained using the 3D probability tomography of the gradient and pole-pole data. Excavation works, carried out in accordance with the results of the geoelectrical investigation, successfully found a 2.7×0.8×1.7 m tomb, where several human bones have been collected. A 3D resistivity model incorporating the main features of the tomb was built after the excavation. The pole-pole model responses calculated from this model reproduce the main features observed in the data

Electrochemical and photoluminescence response of laser-induced graphene/electrodeposited ZnO composites

The inherent scalability, low production cost and mechanical flexibility of laser-induced graphene (LIG) combined with its high electrical conductivity, hierarchical porosity and large surface area are appealing characteristics for many applications. Still, other materials can be combined with LIG to provide added functionalities and enhanced performance. This work exploits the most adequate electrodeposition parameters to produce LIG/ZnO nanocomposites. Low-temperature pulsed electrodeposition allowed the conformal and controlled deposition of ZnO rods deep inside the LIG pores whilst maintaining its inherent porosity, which constitute fundamental advances regarding other methods for LIG/ZnO composite production. Compared to bare LIG, the composites more than doubled electrode capacitance up to 1.41 mF cm-2 in 1 M KCl, while maintaining long-term cycle stability, low ohmic losses and swift electron transfer. The composites also display a luminescence band peaked at the orange/red spectral region, with the main excitation maxima at ~ 3.33 eV matching the expected for the ZnO bandgap at room temperature. A pronounced sub-bandgap tail of states with an onset absorption near 3.07 eV indicates a high amount of defect states, namely surface-related defects. This work shows that these environmentally sustainable multifunctional nanocomposites are valid alternatives for supercapacitors, electrochemical/optical biosensors and photocatalytic/photoelectrochemical devices.publishe

Avaliação do nível tecnológico em propriedades leiteiras do Estado do Acre.

O objetivo deste trabalho foi avaliar o nível tecnológico de algumas propriedades leiteiras acrianas para incluí-las em um programa de melhoramento genético de gado de leite. No período de 2008 a 2010, foram selecionadas sete propriedades estratégicas, para serem utilizadas em unidades demonstrativas, sendo transferido a elas um conjunto de oito tecnologias. O processo de transferência destas tecnologias foi realizado por meio de entrevistas com os produtores, nas quais se demonstrou as vantagens e desvantagens de utilizá-las. Após decisão do produtor de aplicá-las, foram realizadas visitas técnicas periódicas nas propriedades e anotados e avaliados os resultados. Durante o período estudado foi verificado um considerável aumento na adoção de tecnologias nas propriedades assistidas. O controle zootécnico e financeiro foi a tecnologia que apresentou o maior índice de adoção pelos produtores, enquanto as boas práticas higiene na ordenha apresentaram o maior índice de rejeição. As propriedades estudadas possuíam rebanhos pequenos, com baixa produtividade e baixa relação vacas em lactação/vacas do rebanho. Somente quatro das propriedades estudadas estão preparadas para a participarem de um programa de melhoramento genético de gado de leite