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Now showing items 31-40 of 81
Desenvolvimento e validação de um novo método analítico para quantificação de resíduo de eprinomectina no leite bovino
(Universidade Federal de São Carlos, 2016-05-30)
Brazil is one of the biggest producers and consumers of milk around the globe. To ensure the productivity and profitability of the cattle, the use of antiparasitic plays an important role in strategic control of worm ...
Análise mista das imagens em livros didáticos de química de segunda série do ensino médio
(Universidade Federal de São Carlos, 2018-03-16)
The present work was devoted to the study of the images contained in chemical textbooks approved in PNLD-2015. It aimed to classify the nature of the images contained in the themes Solutions and Colligative Properties ...
Desenvolvimento de membranas poliméricas para sistemas de remediação de íons metálicos pesados em soluções aquosas
(Universidade Federal de São Carlos, 2019-07-30)
The planet Earth is flooded with about 1.4 billion km3 of water, meaning that almost 71% of its surface is covered by water. However, only about 0.77% of this volume is accessible in the form of fresh water presented in ...
Avaliação crítica do processo de implementação e amadurecimento de um sistema de gestão da qualidade integrado BPL (Boas Práticas de Laboratório) e ISO/IEC 17025
(Universidade Federal de São Carlos, 2013-06-07)
The tests and/or study laboratories have sought the implementation of Quality Management Systems (QMS) in order to obtain a differential, which is the greater reliability and acceptance of their results. The two main systems ...
A Iniciação Científica Júnior multidisciplinar como facilitadora da alfabetização científica
(Universidade Federal de São Carlos, 2016-04-01)
This research was conducted by monitoring ten students awarded with high school scholarships (scientific initiation junior multidisciplinary) provided by Circus of Science, an event realized during the Open University ...
Identificação dos componentes do óleo essencial de laranja (Citrus sinensis L. Osbeck) e proposição de procedimentos industriais para a obtenção de produtos diferenciados
(Universidade Federal de São Carlos, 2011-10-21)
Brazilian exports of orange essential oil are responsible for moving approximately seventy-four million dollars, representing a significant portion of Brazilian business, and deserve the attention from the companies involved ...
Ensino e aprendizagem significativa do conceito de ligação química por meio de mapas conceituais
(Universidade Federal de São Carlos, 2011-02-04)
As a consequence of student difficulties related to concepts of greater abstraction of Chemistry, the concept of Meaningful Learning according to the theory of Ausubel was used in this work. From it, the twodimensional ...
Desenvolvimento de um reator fotoquímico microcontrolado, utilizando diodos emissores de luz (LEDs) como fonte de excitação luminosa
(Universidade Federal de São Carlos, 2011-02-11)
Aiming to contribute to the technological development of our country and meet the domestic demand for photochemical reactors, we have considered the possibility of developing a national product. The development of this ...
Aplicação de ferramentas estatísticas para avaliação de filmes de emulsões estireno acrílicas
(Universidade Federal de São Carlos, 2010-02-11)
This dissertation is focused on using statistical tools (Design of Experiments, DOE) and Principal Component Analysis (PCA) for evaluating latex film formation. The experimental part was conducted at Dow Brasil R&D facility ...
Compreendendo os fenômenos nucleares, suas aplicações e implicações através de uma atividade lúdica
(Universidade Federal de São Carlos, 2010-10-01)
It has been shown that students of latest high school year do not know the meaning of the symbols of radioactivity, and sometimes they mix up mentally with different sources of radioactivity or types of radiation. Students ...