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Itens para a visualização no momento 21-30 of 167
A influência da variabilidade dos dados na qualidade de imputação de dados faltantes
(Universidade Federal de Santa Maria, 2019-03-26)
Imputation methods were developed with the purpose of defining estimates for missing
data in a database and, in this way, solving possible problems generated by the loss
of such information. In this study the objective ...
Um arcabouço ferramental para implantação personalizável de serviços de rede virtualizados
(Universidade Federal de Santa Maria, 2019-01-18)
The current telecommunication infrastructures rely on the use of network functions implemented
in dedicated hardware which are able to identify, handle, modify, and execute many
protocols and services. However, difficulties ...
Engenharia de cristais: estudo conformacional, topológico e energético de t-butilpirazóis e bis-t-butilpirazóis
(Universidade Federal de Santa Maria, 2019-02-22)
This work presents a proposed crystallization mechanism and conformational study of regioisomers of 5(3)-aryl-3(5)-carboxyethyl-1-(1,1-dimethylethyl)-1H-pyrazole (aryl, 4-X-C6H4, where X = H, F, Cl and Br) and a series of ...
Síntese, análise estrutural, luminescência e atividade biológica de complexos de metais de transição com ligantes derivados de benzoilidrazina e feniltiossemicarbazida
(Universidade Federal de Santa Maria, 2019-01-30)
This work reports the synthesis and characterization of new complexes with 2,6-diacetylpyridine-bis(benzoylidrazone) (L1) and 2,6-diformylpyridine-bis(4-phenylthiosemicarbazone) (L2) ligands. The complexes [(L1)2Ce]Cl3.14H2O ...
Interação entre líquidos iônicos imidazolíneos e os alginatos de sódio e hidroxâmico
(Universidade Federal de Santa Maria, 2019-01-30)
This work describes the interactions between sodium alginate (ALG) and hydroxamic
alginate (AHX) with the monocationic imidazolium ionic liquids series (CnMIMBr).
From the surface tension, electrical conductivity, ...
Efeitos de campos magnéticos aleatórios em sistemas de vidro de spin com clusters
(Universidade Federal de Santa Maria, 2019-03-08)
This work investigates the effects of the presence of random magnetic fields (RFs) in
thermodynamic quantities that characterize the spin glass state (VS). We adopt a cluster
spin model that considers long-range disordered ...
Fatores de risco associados à Síndrome de Burnout em servidores da Universidade Federal de Santa Maria
(Universidade Federal de Santa Maria, 2019-03-28)
Burnout Syndrome is a physical and mental exhaustion by working people who lead the worker to illness. Authors emphasize that the attributions of the editors can contribute to the development of the Syndrome. In this sense, ...
Estudando a equação geral da reta com o GeoGebra
(Universidade Federal de Santa Maria, 2019-07-06)
The present work aimed to explore mathematical concepts, stimulating the use of TDIC's - Digital Information and Communication Technologies in the classroom. In this practice was used the application GeoGebra for smartphones, ...
Modelos de regressão para o valor da produção de erva-mate no Rio Grande do Sul
(Universidade Federal de Santa Maria, 2019-02-19)
Linear regressionmodelsthatsupposenormalresponsevariableswerewidelyuseduntil
more flexibletechniqueswereintroduced.Realsituationsareverycomplex,thusitisdifficult
that variablescomplywiththeassumptionsoftheclassiclinear ...
Análise dos resíduos em modelos de regressão não linear ajustados aos dados de Crotalária juncea por diferentes métodos de estimação
(Universidade Federal de Santa Maria, 2019-03-26)
The objective of this work was to verify the quality of the residues in the nonlinear regression
model Gompertz and Logistic estimated by different methods of parameter estimation. Two
uniformity were performed. After ...