Term Br
Mostrando 13-24 de 41 artigos, teses e dissertações.
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13. Termoestabilidade de processos extrativos de Nasturtium officinale R. Br., brassicaceae por sistema Soxhlet modificado
This work had as objective verified the term-stability of the Soxhlet modified system with analytical and pharmacothecnical application in extractive processes of Nasturtium officinale. It has proven that the process is thermo-stable. The analysis with analytical have determined 3.606 mg g-1 in chlorogenic acid and 11.813 mg g-1 in rutin (extract 1:20 w/v) a
Química Nova. Publicado em: 2009
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14. Cidadãos e cidadãs em situação de rua: uma análise de discurso crítica da questão social
The aim of this research is to study the discourse and its action on one of the manifestations of the social question the situation of citizens who are living on the streets. Thus, five nationally widespread texts are analysed on its linguistic and other semiotic aspects. The texts cover the following genres: The Brazilian Constitution, electronic cartoon (p
Publicado em: 2009
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15. Economic impacts of the introduction of the Bt11 corn in Brazil: a general equilibrium inter-regional / Impactos econômicos da introdução do milho Bt11 no Brasil: uma abordagem de equilíbrio geral inter-regional
Due to the importance of the productive chain of corn to the economy of different regions of Brazil and the liberalization of genetically modified (GM) corn cultivation in the country in 2007, this study aims to analyze the long-run economic impacts of the adoption of Bt11 corn in the inter-related sectors of the productive corn chain. Moreover, it is intend
Publicado em: 2009
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16. GOVERNMENT GUARANTEES IN PPP PROJECTS: AN APPLICATION OF THE LPVR MODEL TO THE BR-116/324 HIGHWAY PROJECT / GARANTIAS GOVERNAMENTAIS EM PROJETOS DE PPP: UMA APLICAÇÃO DO MODELO LPVR AO CASO DA BR-116/324
Since the 90`s, there has been an increasing participation of the private sector in infrastructure projects in Brazil. This participation, however, took place mainly through traditional concessions, governed by the Concessions Law. However, to become economically viable projects that would not have attractiveness to the private sector due to its high risks,
Publicado em: 2008
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17. A geographical approach of tourism in Porto Seguro city / Uma abordagem geográfica do turismo em Porto Seguro
This study presents the various processes of socioeconomic occupation of the south of Bahia and especially the implications arising out socio tourism. With the opening of BR 101 in the mid-1950, and its asphalt in the early 1970s. tourism has developed and has found itself as the regions main economic activity, due to its numerous tourist resources. New form
Publicado em: 2008
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18. The economic impact of potential avian flu outbreaks in Brazil: a general equilibrium model analysis / Avaliação do impacto econômico de possíveis surtos da gripe aviária no Brasil: uma análise de equilíbrio geral computável
In the past few years, the bird flue virus H5N1 spread rapidly through various countries and continents, causing great economic and human losses. There is also the possibility of the disease arriving in Brazil, which would have a substantial impact on the countrys economy, particularly on its poultry sector. The present study addresses the lack of estimates
Publicado em: 2008
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19. A construção das práticas de integralidade no cotidiano de uma equipe de saúde da família
This is a qualitative case study, based on the comprehensive sociology of Michel Maffesoli, with the objective of understanding practices of integrality in the daily routine of a Family Health Team from Belo Horizonte, State of Minas Gerais, Brazil, from the point of view of the health workers. Data collection was carried out from March to June 2005, with in
Publicado em: 2006
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20. Prediction of electrolyte vapor-liquid equilibrium by UNIFAC-Dortmund
The modified UNIFAC-Dortmund group contribution model is used for the correlation and prediction of salt effects in binary solvent-salt and ternary mixed solvent-salt systems. The long-range electrostatic interaction contribution, usually represented by a Debye-Hückel term, was empirically dropped. Previously published parameters for interactions between so
Brazilian Journal of Chemical Engineering. Publicado em: 2001-06
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21. Termoquimica dos adutos de haletos da familia do zinco com bases de Lewis : estimativa de algumas entalpias de dissociação metal-ligante
The mean enthalpies of metal-ligand bond dissociation in MX2.nL adducts (M = Zn; X = Cl, Br; n = 1, 2; L = Lewis bases with CO, PO, N(aromatic), NO groups) was determined by using of extra-thermodynamic hypothesis that the molar enthalpy of adduct sublimation has the same value as the molar enthalpy of vaporization or sublimation of the ligand (hypothesis A)
Publicado em: 1992
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22. Efficiency of Thymidine Incorporation in Escherichia coli B/r as a Function of Growth Rate
Short-term labeling with radioactive thymidine led to inaccurate estimates of deoxyribonucleic acid synthesis at some growth rates in steady-state cultures of Escherichia coli B/r. Estimates were corrected in chemostat cultures by adding adenosine, a known inhibitor of thymidine phosphorylase.
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23. Photochemical conversion of the O-intermediate to 9-cis-retinal-containing products in bacteriorhodopsin films.
The photochemical activity of the O-state was investigated in bacteriorhodopsin (BR) films containing wildtype BR at pH 6.5 in the presence of glycerol. The formation of a photoproduct of O with an absorption maximum at 490 nm and 9-cis-retinal configuration was found. This 490-nm product was named P and shows a slow thermal reaction into a compound with a m
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24. Plasmid DNA Supercoiling and Survival in Long-Term Cultures of Escherichia coli: Role of NaCl
The relationship between the survival of Escherichia coli during long-term starvation in rich medium and the supercoiling of a reporter plasmid (pBR322) has been studied. In aerated continuously shaken cultures, E. coli lost the ability to form colonies earlier in rich NaCl-free Luria-Bertani medium than in NaCl-containing medium, and the negative supercoili
American Society for Microbiology.