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Now showing items 141-150 of 484
Desenvolver a cidadania através da química : é possível? Um desafio a ser vencido
(Universidade Federal de São Carlos, 2003-12-17)
The present work was inspired by the High School National
Curriculum Parameters (PCNEM) as well the Schnetzler proposal of teaching
chemistry to citizenship. It is also based on the observed chemistry teaching
problems, ...
Quantificação de metacrilatos residuais e avaliação da liberação em saliva artificial a partir de resinas acrílicas para reembasamento imediato
(Universidade Federal de São Carlos, 2008-05-21)
This work reports the development of analytical methods, using High Performance of Liquid Chromatography (HPLC), to quantify unreacted monomers from dental reline autopolimerizing acrylic resins. The quantification of these ...
Desenvolvimento de estratégias para a determinação espectrofotométrica sequencial em fluxo de Co (II) e Mn (II)
(Universidade Federal de São Carlos, 2009-07-24)
In this study a kinetic-spectrophotometric method was developed for sequential determination of Co and Mn in pharmaceutical samples. The method was based on the catalytic effect of the analytes in the oxidation reaction ...
Complexos carbonílicos de rutênio. De um gás tóxico a uma droga com potencial agente citotóxico
(Universidade Federal de São Carlos, 2007-11-27)
In this work ruthenium carbonyl complexes were synthesized and characterized which allowed an interesting spectroscopic and structural study as well as preliminary in vitro antitumor activity assays. Thus, the interests ...
Síntese, caracterização e estudo das propriedades fotofísicas de SiO2-GeO2 VAD encapsulada com Eu2O3
(Universidade Federal de São Carlos, 2008-08-22)
Some materials can be encapsulated with metals, inorganic solids and biomolecules, in a nanometric scale, to form a nanocomposite which has specific properties that can be open to research and technology works. In the ...
Atividade inseticida de espécies de trichilia frente à lagarta-do-cartucho do milho spodoptera frugiperda
(Universidade Federal de São Carlos, 2008-07-18)
This work presents the phytochemical study and biological assays carried out with organic extracts of fruits and seeds
from Trichilia claussenii, T. elegans and inflorescence from T. catigua against S. frugiperda. Among ...
Titulações potenciométricas de cátions metálicos tendo como eletrodo indicador o sistema Cu/CuY2-
(Universidade Federal de São Carlos, 2007-07-27)
In this work a Cu/CuY2- indicator system was used to carry out potentiometric titrations of Cu2+, Co2+, Cd2+, Zn2+ and Mn2+ ions with EDTA solution. A copper wire with 8.32 cm2 of superficial area was used as an indicator ...
Fracionamento de zinco em amostras de leite
(Universidade Federal de São Carlos, 2009-02-26)
This work studies were aimed at samples preparation and chemical speciation levels zinc in samples of different kind
of milk (milk cattle, sheep, goat, and soybean milk base). The proposal aimed to establish the differences ...
Análises de meroterpenos produzidos por Penicillium brasilianum
(Universidade Federal de São Carlos, 2008-02-14)
This work describes the use of the high performance liquid cromatography (HPLC) technic coupled to the mass spectrometry technique for the analysis of fungal extracts, and the main purpose was the detection of meroterpens ...
Transporte e morfologia de esquemas de tintas epóxi poliamina equivalentes à base de solvente e água.
(Universidade Federal de São Carlos, 2003-07-21)
In the present work, anticorrosive properties of solvent borne and water based epoxy polyamine coatings were studied comparatively. First these studies were performed for the individual layers of these coatings, i.e., ...