Avaliação do selante de fibrina como arcabouço para células tronco em fígados cirróticos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Modelo deposicional de carbonatos albianos da Formação Quissamã: análise faciológica, diagenética e estratigráfica de um campo de óleo na porção meridional da Bacia de Campos

Pós-graduação em Geologia Regional - IGCE

Processo de desenvolvimento da imaginação na pré-escola: implicações de um programa de intervenção ludo-pedagógico a partir do gênero musical samba

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A linguagem do consenso nos marcos da regressão cultural: o fim da consciência e a construção do neocontratualismo de Jürgen Habermas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A matemática contábil: das lides comerciais para os cursos secundários técnicos e sua transformação em setor acadêmico no Brasil (1808-1970)

Pós-graduação em Educação Matemática - IGCE

As relações de trabalho e a resistência escrava em Sant'Ana de Paranaíba: província de Mato Grosso (1828- 1888)

Pós-graduação em História - FCLAS

Métodos Semi-Empíricos: princípios básicos e aplicações

Pós-graduação em Física - IGCE

Poluentes orgânicos persistentes em ar interior: desenvolvimento de método de extração em adsorvente para amostragem ativa

Persistent Organic Pollutants (POPs) are chemical substances extraordinarily toxic and persistent in the environment. Due to these properties, POPs are targets of the Stockholm Convention which aims to provide means to eliminate production and use by encouraging the reduction and, where possible, eliminating the release of these contaminants to the environment. One of the articles of this _Convention aims to assess the basal levels of such substances in the environment to monitor both the reduction of release to the environment, and to assess human exposure, using analyzes of milk and air for example. Although efforts to control POPs production and release to the environment have been made, data about their levels in Brazil are still scarce, mainly in the atmosphere or indoor environment. Considering the permanence of people inside its house, this study presents a method for POP extraction from XAD-2 sorbent employed in indoor air sampling, with identification and quantification by GC-ECD. GC-ECD linear range of the studied analytes, congeners of polychlorinated biphenyls (PCB) (28, 52, 101, 118, 138, 153 and 180), DDTs and their metabolites (DDDs, DDEs) and endosullan (isomers c - and 13 - and metabolite endosulfan sulfate) ranged between 0.5 and 16.0 ng mL-I with r2 > 0.967. The method developing consist of selecting the extraction solvent system by agitation (90 rpm, 1 hour) with n-hexan,e (2 mL) or n-hexane:acetone (1:1, v/v) (2 mL), concentration the extract with a gentle N2 stream, and evaluation of breakthrough with passage or air through the fortified XAD-2 cartridge before extraction, employing a low volume air suction pump (Pump Model 224 universal-PCXR8; 5-5000 mL min-1, SKC Inc., Eighty Four, PA, USA), Calibrator Dry-Cal DC-Lite (BIOS, Butler, NJ, USA)). Two fortification levels were employed, 15 and 30 ng. After selecting n-hexane as extraction solvent, with accuracy and precision ranging...

Eficácia e efeitos hemodinâmicos da anestesia raquidiana com ropivacaína isobárica, hipobárica ou hiperbárica seletiva em cães anestesiados com isofluorano

Pós-graduação em Ciência Animal - FMVA

Uso de reator aeróbio de leito fluidizado com circulação como dispositivo de pós-tratamento do efluente de um reator uasb compartimentado tratando esgotos sanitários

Pós-graduação em Engenharia Civil - FEIS

O efeito da estrutura da matriz na percepção de aves na paisagem

Pós-graduação em Ciências Biológicas (Zoologia) - IBRC

O ensino religioso na escola pública: regras que cooperam para sua organização

Pós-graduação em Educação - FCT

Retificador entrelaçado com elevado fator de potência para operação de um veículo trólebus alimentado por redes em CA Ou CC

This paper presents the development and the main results for an interleaved boost rectifier operating as a special input power stage for a trolleybus type vehicle, allowing its feeding by alternate current (AC) or direct current (DC) distribution power systems. When feeding with two wires (single phase) alternate current distribution system, the converter accomplish active power factor correction, providing a relatively sinusoidal current with low total harmonic distortion (THD) and fully complying with IEC 61000-3-4 standards. In addition, a management control system promotes the required automatic operation changes for the proposed rectifier when the vehicle is changing from the DC distribution power system to the AC distribution power system and vice-versa, keeping its original electrical DC system characteristics for the adjustable speed driver sub-system. The main experimental results for a prototype rated at 150kW are presented, considering its application for a trolleybus with DC adjustable speed driver, demonstrating the proposed converter benefits and the possibility of AC feeding system for trolleybus type vehicle.

A herança genotípica proposta por Wilhelm Ludwig Johannsen

Conselho Nacional de Desenvolvimento Cientifico e Tecnológico (CNPq)

A liberdade de imprensa vista pelo Supremo Tribunal Federal: análise da ADPF n. 130

The present study aims to present and analyze the ruling of the Brazilian Supreme Court in ADPF 130 (Concentrated constitutional review action, Fundamental Precept Infringement, Argüição de Descumprimento de Preceito Fundamental), proposed by Partido Democrático Trabalhista (PDT), which contests the compatibility of statute 5.250/67 with the Federal Constitution of 1988. This work considers that the judicial ruling is different than the approach taken by the Legislative and Executive powers, arguing that there is, in the Judiciary, a peculiar way for ruling, surrounded by mysteries, rites, secrets, pomp and circunstances unintelligible to layman. To reach the proposed goal, Justice Carlos Brito´s report and opinion on ADPF 130 are analyzed. The choice of giving special attention to this opinion, which favors the declaration of unconstitutionality of the 5.250/67 statute, is justified in that it represents agreement with the allegation of disrespect to the constitutional text, as suggested by the Partido Democrático Trabalhista. The arguments put forth by the presiding Justice on his ruling will also be the object of consideration, as well as some possible consequences of the ruling.