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Now showing items 541-550 of 655
Levantamento de modelos mentais para verificação de aprendizagem significativa do conceito de equilíbrio químico em licenciandos em química
(Universidade Federal de São Carlos, 2019-08-23)
The concept of equilibrium corresponds to one of the most complex and difficult topics of teaching and understanding in Chemistry. Although different researches has adopted the theme as an object of research and the important ...
Estudo da influência de nanopartículas de ouro na atividade de lipase de Pseudomonas fluorescens imobilizada em nanopartículas superparamagnéticas
(Universidade Federal de São Carlos, 2020-02-19)
The growing interest in the application of biocatalysts in several industrial sectors made the enzymatic immobilization stand out among the possible strategies to enable the use of these catalysts. This strategy has the ...
Síntese e caracterização de vanadatos de prata e formação de nanopartículas de prata por eletro-Irradiação
(Universidade Federal de São Carlos, 2018-02-19)
Due to its physico-chemical, bactericidal and photocatalytic properties, Silver vanadium oxides (SVOs) have attracted increasing attention due to their excellent physicochemical properties and diverse applications. The aim ...
Laser-induced breakdown spectroscopy (LIBS), wavelength dispersive x-ray fluorescence (WDXRF) and chemometrics: possibilities for analytical applications in food analysis
(Universidade Federal de São Carlos, 2020-07-14)
This PhD thesis proposes evaluation of the possibilities and analytical applications of the laser-induced breakdown spectroscopy (LIBS) and wavelength dispersive x-ray fluorescence (WDXRF) techniques for the determination ...
Desenvolvimento de metodologias de divulgação científica por meio de pesquisa e produção de mangás
(Universidade Federal de São Carlos, 2020-05-27)
Science communication can be defined as any practice that proposes to spread the science to the public, with the purpose of arousing interest and motivation in science, as well as informing and disseminating scientific ...
Obtenção de inseticidas e fungicidas a partir de Picramnia Glazioviana e bagaço de laranjas para o controle de formigas cortadeiras
(Universidade Federal de São Carlos, 2019-02-26)
Because our country has a continental dimension and a very suitable climate for practicing numerous varieties of crops, it is necessary to obtain adequate control of the pests that afflict food production. One of the main ...
Estudo da série LaNi1-xFexO3 e folhas de grafite pirolítico em reações de desprendimento de oxigênio
(Universidade Federal de São Carlos, 2020-04-17)
Due to the critical need to change from fossil to renewable fuels, the perovskite oxide structures emerge as an important class of materials due to its activity in photovoltaic cells, photocatalysis, photoelectrochemical ...
Desenvolvimento de filmes biodegradáveis baseados em pectina e nanofibras de celulose funcionalizadas
(Universidade Federal de São Carlos, 2019-08-26)
Renewable polymers are an interesting alternative to synthetic polymers from petrochemical sources. The work aims at the development of nanocomposite films based on pectin and functionalized cellulose nanofibers. The ...
Caracterização química por cromatografia líquida e análise quimiométrica de espécies vegetais de Bauhinia com aplicação em controle de qualidade de amostras comerciais de "pata-de-vaca"
(Universidade Federal de São Carlos, 2011-07-27)
Chemical characterization by liquid chromatography and chemometric analysis of Bauhinia species (popularly known as pata-de-vaca ) with applications in quality control of commercial samples. The infusion of leaves from ...
Síntese de porfirinas contendo grupos do tipo uracil fundidos nas posições β-pirrólicas
(Universidade Federal de São Carlos, 2014-07-28)
In this work the synthesis of new porphyrin derivatives were proposed. The preparations of new compounds containing uracil groups at β-pirrolic position were studied based on their interest in organics synthesis. We ...