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Síntese e avaliação da atividade antioxidante de calcogenilazidas e calcogeniltriazóis
(Universidade Federal de Santa Maria, 2016-03-24)
In this work, we developed a synthetic route for obtaining β-aryl-chalcogenoazide and β-aryl-chalcogenotriazole (S, Se and Te) derived from L-amino acids (L-phenylalanine, L-valine and L-leucine). We obtained a compounds ...
Síntese de 4-organocalcogenil-1h-isocromen-1-iminas e 3-(alquil calcogenoil-2-benzofenil[b]selenofeno[2,3-d] calcogenofenos via reações de ciclização mediadas por sais de ferro
(Universidade Federal de Santa Maria, 2016-08-03)
In this work we developed the efficient and selective heterocyclic product synthesis
using as electrophilic agent a ferric chloride combinated with diorganyl
dichalcogenides under mild conditions. In the first part of this ...
Síntese, análise estrutural e avaliação da atividade catalítica mimética da superóxido dismutase e peroxidases de complexos derivados do piridoxal e cobre
(Universidade Federal de Santa Maria, 2016-03-31)
This work presents the synthesis and characterization of copper complexes
that mimic the activity of the superoxide dismutase enzyme, which operates in the
elimination of reactive oxygen species or in the activation of ...
Reações de β-enaminodicetonas com ncn dinucleófilos: obtenção de pirimidinas e sistemas heterocíclicos fundidos
(Universidade Federal de Santa Maria, 2016-08-26)
In this study the reactivity of β-enamino diketones [RC(O)C(=CHNMe2)C(O)CO2Et, R = C6H5, 4-Me-C6H4, 4-MeO-C6H4, 4-F-C6H4, 4-Br-C6H4, 4-NO2-C6H4, tien-2-il] with NCN bisnucleophiles as amidine and guanidine was investigated. ...
Desenvolvimento de uma base de dados e de indicadores para projetos de pesquisa em rede com ruminantes
(Universidade Federal de Santa Maria, 2016-02-16)
This thesis aims to describe the structure and the main features of PampaDB, a computer system associated with a database for network research projects on ruminant production systems. The stored information is structured ...
Desempenho reprodutivo de fêmeas bovinas de corte no primeiro e segundo ano de acasalamento
(Universidade Federal de Santa Maria, 2016-07-01)
The objective of this work was to evaluate the reproductive performance of beef heifers in the first and second
reproductive year. Two hundred twenty- seven heifers mated for the first time at 24 months old, which ...
Leguminosa ou concentrado na terminação de cordeiros lactentes em pastejo de azevém
(Universidade Federal de Santa Maria, 2016-02-26)
The objective of this research was to evaluate the effect of private supplementation with concentrated or legume, on the pasture characteristics, performance, carcass traits, body components, physico-chemical and sensory ...
Determinação de contaminantes orgânicos em matrizes complexas utilizando método QuEChERS e cromatografia líquida acoplada à espectrometria de massas de alta resolução
(Universidade Federal de Santa Maria, 2016-03-04)
The presence of organic contaminants in the environment and in food have become a major concern due to the harmful effects to living organisms. Such contaminants may be pesticides used in agriculture for the control of ...
Decomposição de amostras botânicas e leite em pó utilizando peróxido de hidrogênio em sistema de alta pressão e posterior determinação elementar por ICP OES e ICP-MS
(Universidade Federal de Santa Maria, 2016-06-28)
Recently, there is an appeal to reduce the use of toxic reagents in a great effort for the development of analytical "green" methods. Thus, the paper proposes the elemental analysis of botanical and food samples without ...
Rhodococcus equi e metabolismo do ferro: associação com susceptibilidade genética e sobrevivência em macrófagos
(Universidade Federal de Santa Maria, 2016-02-17)
Horse breeding industry is an activity in ascension worldwide, and is responsible for generating jobs and income. In Brazil, especially in Rio Grande do Sul state, there are several horse breeding farms with high-standard ...