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Itens para a visualização no momento 61-70 of 103
Modelo lógico da sinergia entre sinalização TGF_ e dano ao DNA no destino celular
(Universidade Federal de Santa Maria, 2017-08-29)
Many factors may cause damages to the DNA, among them we can quote environmental
pollution, ionizing radiations, amongst others. The signalization involved after an instituted
damage consists in activation pathways and/or ...
Extração e adsorção de HPAs através de transferência gás- sólido (XAD-2 e EPU) utilizando dispositivo de extração e coleta
(Universidade Federal de Santa Maria, 2017-04-27)
Polycyclic Aromatic Hydrocarbons (PAHs) are organic compounds formed by two or more condensed aromatic rings. These compounds are important organic pollutants and due to their harmful action their concentrations in the ...
Proxy CC – reserva de banda dinâmica baseada em contexto
(Universidade Federal de Santa Maria, 2017-01-26)
This dissertation consists of presenting a proposal to the use of the context-aware computing
paradigm to availability of computer resources to institutions, in view of the increasing need
for efficiency and effectiveness ...
Determinação de elementos terras raras em petróleo e frações por amostragem direta e ICP-MS com vaporização eletrotérmica
(Universidade Federal de Santa Maria, 2017-07-29)
In this work, a method for the determination of rare earth elements (REE) present in low concentrations in crude oil, atmospheric distillation residue (RAT) and vacuum distillation residue (VR) using direct sampling and ...
Decomposição assistida por radiação micro-ondas e ultravioleta de resíduos de equipamentos elétricos e eletrônicos para determinação de Br, Cd, Cr, Hg, Pb e Sb
(Universidade Federal de Santa Maria, 2017-03-09)
In this work, a method for ultraviolet and microwave-assisted wet digestion (MAWD-UV) was developed for digestion of waste electrical and electronic equipment (WEEE) for further determination of Br, Cd, Cr, Hg, Pb and Sb ...
Determinação de elementos traço em carvão por amostragem de sólidos e vaporização eletrotérmica acoplada à espectrometria de massa com plasma indutivamente acoplado
(Universidade Federal de Santa Maria, 2017-07-28)
In this work, a method using solid sampling electrothermal vaporization inductively coupled plasma mass spectrometry (SS-ETV-ICP-MS) for the determination of As, Sb, Se and Te in mineral coal was developed. The following ...
Um processo para extração de esquemas conceituais em fontes de dados JSON baseado em técnicas de similaridade de texto
(Universidade Federal de Santa Maria, 2017-06-29)
NoSQL (Not Only SQL) data models have been notable for their promise of schema
flexibility and scalability considering the large volume of data. Their flexibility allows, for
example, that documents within the same ...
Desenvolvimento de método de preparo de amostras baseado no efeito Maxwell-Wagner e determinação de elementos terras raras por técnicas espectrométricas
(Universidade Federal de Santa Maria, 2017-06-03)
A new method for analytical applications based on Maxwell-Wagner effect with to use of microwave radiation in closed system is proposed. Considering the interaction of carbonaceous materials with an oscillating electromagnetic ...
Métodos simplificados de síntese de copolímeros através da combinação das técnicas SET-LRP e ROP
(Universidade Federal de Santa Maria, 2017-02-10)
The present work focuses on the synthesis of diblock copolymers of the type polyester-block-poly(acrylate) by one-pot methodology, by combining the polymerization techniques ROP and SET-LRP. The proposed strategy was based ...
Avaliação de sorventes para remoção de clorofila na determinação de agrotóxicos em espinafre empregando método QuEChERS e GC-ECD
(Universidade Federal de Santa Maria, 2017-03-30)
Vegetables are classified as greens when used on green parts and play an important role in human diet and nutrition. These foods are sources of vitamins, antioxidant polyphenols, essential amino acids, fibers, minerals, ...