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Variações espaciais de temperatura e densidade eletrônica de regiões HII nas Nuvens de Magalhães
(Universidade Federal de Santa Maria, 2010-04-02)
The aim of this work had to estimate the physical proprieties of the HII region NGC 346 (belonging the Small Magellanic Cloud) and the estimation of electron density
at point-to-point to 17 other ionized nebulae, in ...
Transicões inversas em modelos fermiônicos de vidro de spin
(Universidade Federal de Santa Maria, 2010-08-26)
The present work studies inverse transitions by using two spin glass models: the infinite-range fermionic Ising spin glass (FISG) in the presence of a transverse magnetic field
¡ and Hopfield fermionic Ising spin glass ...
Estrutura Molecular e Supramolecular de Pirazolo[1,5- a]pirimidinas
(Universidade Federal de Santa Maria, 2010-05-07)
This work describes the molecular and supramolecular structure of fourteen pyrazolo[1,5-a]pyrimidines from bond lengths, torsion angles, angles between planes and interatomic distances. The data discussed were originated ...
Síntese e aplicação de calcogenetos derivados de peptídeos em catálise assimétrica
(Universidade Federal de Santa Maria, 2010-07-12)
In the present work, we have developed a flexible, modular synthetic route for the preparation of new chiral chalcogen peptide derivatives containing sulfur,
selenium or oxygen and evaluate their application as catalysts ...
Síntese e arranjos supramoleculares de complexos Bis(triazenido) macrocíclicos e triazenido 1-óxido com os cátions Cu2+, Ni2+, Cu+, K+
(Universidade Federal de Santa Maria, 2010-06-09)
This work elaborates on the determination of crystal and molecular structures of four pro-ligands, emphasizing bis(triazenes), triazene 1-oxide and a new class of bis(triazenes) macrocyclic, and eight complexes involving ...
Anti-inflamatório dexametasona: estudos de biodegradabilidade, toxicidade, ocorrência e degradação oxidativa avançada em efluente hospitalar
(Universidade Federal de Santa Maria, 2010-12-15)
The presence of drugs and active substances in the environment has been a concern in recent years. A range of these compounds have been found in water treated in sewage
treatment effluents, surface waters and less frequently ...
Aplicação de enonas cíclicas como precursores para síntese de trifluoracetiltetraidropiridinas e 1H-pirazóis-3(5)-carboxilato de etila
(Universidade Federal de Santa Maria, 2010-07-15)
The present work describes the synthesis of novel 1-alkyl(aryl)-2-alkoxy-5-trifluoroacetyl-1,2,3,4-tetrahydropyridines, aza-condensed tetrahydropyridines and ethyl-1H-pyrazoles-3(5)-carboxylate from the use of cyclic enones ...
Estudo dos metabólitos secundários de Scutia buxifolia e suas atividades biológicas
(Universidade Federal de Santa Maria, 2010-04-16)
In this work, four new neutral cycle peptide , scutianenes W (210), X (211), Y (212) and Z (213), have been isolated from Scutia buxifolia Reiss (Rhamnaceae) , along with seven know compounds, four cylopeptide alkaloids, ...
Aplicação da amostragem direta-GF AAS para a determinação de elementos traço em metérias-primas para a produção de poliuretanos
(Universidade Federal de Santa Maria, 2010-02-04)
Polymeric diphenylmethane diisocyanate (PMDI) and diphenylthane dianiline (MDA) are importante raw materials in the manufacture of polyurethanes. These products have wide application in various fields such as medicine, ...
Aplicação de métodos voltamétricos de análise na especiação de cromo, selênio e antimônio em matrizes salinas
(Universidade Federal de Santa Maria, 2010-02-04)
This work aimed to explore the speciation analysis of chromium, selenium and antimony, elements of clinical and geochemical relevance, in the saline samples seawater, hydrothermal fluid and hemodialysis fluid. These samples, ...