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Itens para a visualização no momento 11-20 of 74
Síntese e Análise Estrutural de Complexos de Urânio (VI) e Tório (IV) com Ligantes Relacionados a N,N -bis-piridoxilidenoimina
(Universidade Federal de Santa Maria, 2010-07-16)
This work presents a study related to the synthesis and structural analysis of complexes of uranium (IV) and thorium (IV) with ligands related to N,N -bispiridoxilideneimine. Pyridoxine chlorhydrate and aliphatic and ...
Estudo fotoquímico da ação anti-radicalar de compostos polifenólicos empregando espectrofotometria e HPLC-UV
(Universidade Federal de Santa Maria, 2010-02-22)
The interest in antioxidants has increased considerably in recent years as molecules that reduce lipid peroxidation may minimize or inhibit the oxidative damage caused to DNA, proteins and carbohydrates. Flavonoids, a group ...
Desenvolvimento de metodologia para a determinação de farmácos sintéticos em formulações fitoterápicas emagrecedoras empregando eletroforese capilar
(Universidade Federal de Santa Maria, 2010-02-23)
The adulteration of phytotherapeutic formulations used for weight loss with synthetic pharmaceuticals has been increasing in recent years. The cases of adulteration have been reported in the literature, showing that there ...
Decomposição de polímero à base de enxofre para posterior determinação de Ca, Fe e Na por ICP OES
(Universidade Federal de Santa Maria, 2010-01-18)
In this work different procedures were evaluated for the decomposition of a
sulfur-based commercial polymer, with subsequent Ca, Fe and Na determination,
elements present in additives, using inductively coupled plasma ...
Estudo teórico da influência de um meio solvente na interação de aminoácidos com um nanotubo de carbono
(Universidade Federal de Santa Maria, 2010-09-24)
In this work we use the Density Functional Theory (DFT) to analyze the influence of a water environment in the interaction between amino acids and a semiconductor
carbon nanotube (CNT). To the study of the interaction in ...
Construção de um susceptômetro AC e a susceptibilidade magnética de microfios amorfos recobertos por vidro
(Universidade Federal de Santa Maria, 2010-03-30)
Glass covered microwires are materials with soft magnetic properties suitable to several technological applications, specially in magnetic sensors. The main feature of these
wires, with negative magnetostriction, it is the ...
Modelagem bidimensional de hidrofobicidade e superhidrofobicidade em superfícies de pilares
(Universidade Federal de Santa Maria, 2010-08-02)
In this work we investigate the use of the Potts Cellular Model in simulations of the water droplets on flat hydrophobic and pillarlike surfaces surrounded by gas.
Eight tests were chosen to validate the model, based on ...
Dinâmica de paredes de domínios em microfios amorfos recobertos por vidro
(Universidade Federal de Santa Maria, 2010-01-18)
Amorphous glass-coated microwires are materials with soft magnetic properties suitable for various technological applications, mainly magnetic sensors. One of the outstanding properties of microwires with positive ...
Produção e caracterização de filmes finos de ZnO
(Universidade Federal de Santa Maria, 2010-11-26)
Among the semiconducting oxides, ZnO has received considerable attention as a promising material for several applications in optoelectronic devices due to its high optical transparency in the visible range and good electrical ...
Adaptação do mobile learning engine moodle (MLE moodle) aos diferentes estilos cognitivos utilizando hipermídia adaptativa
(Universidade Federal de Santa Maria, 2010-03-24)
The work aimed at identifying indicators for the adaptation of the virtual learning environment Mobile Learning Engine Moodle (MLE Moodle) to the cognitive styles of students through a system created to diagnose learning ...