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Now showing items 421-430 of 479
Síntese de acil fosfodiésteres por mecanoquímica: uma metodologia de química verde
(Universidade Federal de São Carlos, 2019-08-22)
Green chemistry is very concerned with the sustainability of chemical reactions, where one of the objectives, which in the formulation/remodeling of synthetic routes can replace toxic solvents with solvents of lower toxicity, ...
Desenvolvimento e avaliação de filmes didáticos no processo de ensino-aprendizagem de química no ensino médio.
(Universidade Federal de São Carlos, 2006-02-26)
This research aimed at analyzing the computer’s indirect usage in the Chemistry teaching-learning process in high school. For such a purpose, two short pedagogical films (SPF), which contained images ...
Estudo microestrutural dos contornos de grão em estágio inicial de formação no sistema cerâmico ZnO-Bi2O3
(Universidade Federal de São Carlos, 2019-08-28)
Polycrystalline materials have solid-solid interfaces known as grain boundary. These interfaces have long been treated as just a region of defects between the crystals (grains), but recent studies have shown that such ...
Síntese e avaliação da atividade biológica de uma coleção de amidas
(Universidade Federal de São Carlos, 2006-10-27)
The present study describes the preparation of amides containing the methylenedioxyphenyl group and also their activity against the leaf-cutting ant, Atta sexdens rubropilosa, its symbiotic fungus Leucoagaricus gongylophorus ...
Desenvolvimento de eletrodo de filme de bismuto depositado sobre cobre para aplicações eletroanalíticas
(Universidade Federal de São Carlos, 2007-04-04)
On this work is described the development of bismuth film electrode deposited over copper substrate for electroanalytical applications. The bismuth film electrode was deposited ex situ over a copper substrate. The ...
Arginase: da imobilização à modulação de ensaios de afinidade em coleções de produtos naturais
(Universidade Federal de São Carlos, 2019-05-17)
ARGINASE: FROM THE IMMOBILIZATION TO MODULATION OF AFFINITY ASSAY IN COLLECTIONS OF NATURAL PRODUCTS. The use of natural products from plants dates from antiquity and they are often targets as they exhibit biological ...
Uma avaliação qualitativa da presença de micotoxinas e micro-organismos toxigênicos em insumos e em cervejas artesanais
(Universidade Federal de São Carlos, 2019-12-06)
Consisting primarily of water, hops, malted and non-malted cereals as well as yeast, beer is one of the most consumed alcoholic fermented beverages in the world. Although there are risk laws that compromise product quality, ...
Reações fotoquímicas promovidas por luz visível para a síntese de compostos heterocíclicos
(Universidade Federal de São Carlos, 2017-07-27)
In the last decades, the emphasis and application of the principles of Green Chemistry have inspired a change of behavior, both in industry and academy, towards a more sustainable chemistry aiming the synthesis of the ...
Tetra(tien-2-il)porfirina e seus complexos com metais da primeira-série de transição: síntese, caracterização, investigação da citotoxicidade e interação com DNA
(Universidade Federal de São Carlos, 2020-07-21)
Cancer is a generic term for over 100 diseases with uncontrolled cell growth. Each year, all cancer forms are responsible for millions of deaths worldwide and are the leading cause of deaths linked to disease. Therefore, ...
Definição de metodologias para determinação de ferro em sangue de bovinos resistentes e sensíveis a carrapatos
(Universidade Federal de São Carlos, 2007-06-22)
Different forms of iron had been determined in the blood of animals with resistance and sensitivity to bovine s ticks. The determined variables were: Iron in total, plasma and serum blood, quantified by flame atomic ...