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Itens para a visualização no momento 61-70 of 97
Síntese e investigação da atividade biológica de pirazóis funcionalizados
(Universidade Federal de Santa Maria, 2006-08-16)
In this work, a method for the synthesis of a series of heterocyclic compounds that preserve the amino group of the starting material, is presented. For this study, a-oxoketene O,N-acetals were obtained from the reaction ...
Transições de primeira ordem no modelo vidro de spin ising fermiônico em um campo transverso
(Universidade Federal de Santa Maria, 2006-10-31)
The present work analyzes the fermionic Ising spin glass model in a transverse magnetic field. The problem is written in the Grand Canonical ensemble with the spin operators represented by bilinear combinations of fermionic ...
Validação de métodos multirresíduos de extração e desenvolvimento de método de purificação por GPC para análise de resíduos de pesticidas em soja utilizandoGC-MS, GC-MS/MS e LC-MS/MS
(Universidade Federal de Santa Maria, 2006-03-01)
Due to the complexity of the soybean matrix and the very low pesticide concentrations expected for these samples, it is really necessary to develop efficient and reliable analytical methods to identify and quantify their ...
Decomposição de elastômeros por combustão iniciada por microondas em sistema fechado
(Universidade Federal de Santa Maria, 2006-07-28)
A rapid digestion procedure for further determination of inorganic elements in carbon black-containing elastomers has been developed using sample combustion in closed quartz vessels with oxygen pressure. Microwave radiation ...
Investigação sobre a formação de espécies de arsênio orgânico em soluções de nutrição parenteral
(Universidade Federal de Santa Maria, 2006-06-21)
Parenteral nutrition is the nutrients administration by intravenous mean in patients who cannot consume them for gastrointestinal way. Parenteral Nutrition Solutions are stored in glass and plastic containers, being the ...
Caracterização sócioespacial do distrito de Passo Novo e do subdistrito de Guassu Boi em Alegrete - RS, utilizando Sistemas de Informações Geográficas - SIG
(Universidade Federal de Santa Maria, 2006-09-25)
This research has as its main objective specialize and caracerize the district of Passo Novo and the sub district of Guassu Boi in Alegrete, localized in the southwest Campanha of Rio Grande do Sul, using the GIS technique. ...
Filmes finos de óxidos de vanádio depositados por sputtering reativo
(Universidade Federal de Santa Maria, 2006-05-18)
We have produced thin film samples of vanadium oxide, with different stoichiometry, by reactive magnetron sputtering from a metallic vanadium target. The thickness of the samples were maintained under 100 nm and glass or ...
Previsão da demanda de exames de direção veicular no estado do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2006-01-19)
The objective of this work is to model and to foresee the weekly demand of transportation
direction exams that were accomplished in Rio Grande do Sul. The data were contained in
122 (hundred and twenty-two) weekly ...
Mapeamento geoambiental da bacia do arroio Inhacundá, São Francisco de Assis/RS
(Universidade Federal de Santa Maria, 2006-02-16)
The Inhacundá River Basin Area which comprended between the coordinates 54° 59 32 e 55°20 10 West and 29°20 00 e 29°37 23 South. with area of the 36.333,74 hectares. This Basin is situated into the limits of ...
Análise ambiental da área urbana do município de Casca – RS
(Universidade Federal de Santa Maria, 2006-02-23)
This monograph paper consists of an environmental analysis of the urban area of the
city of Casca – RS in order to diagnose the main problems of the environment
through the intensity of occurrence of environmental ...