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Síntese e estereoquímica de isoxazóis espiro-tetracíclicos trifluormetil substituídos
(Universidade Federal de Santa Maria, 2017-02-23)
The present dissertation initially describes methodologies for the synthesis of five 3-(trifluoromethyl)-3,3a-dihydrospiro[chromeno[4,3-c]isoxazole-4,1'-cycloalkan]-3-ols (7) in 65 – 84 % yields, where the spirocarbocyclic ...
Estrutura dinâmica e termodinâmica da zona de convergência do Atlântico Sul e sua relação com a oscilação Madden e Jullian
(Universidade Federal de Santa Maria, 2017-06-14)
In the southern summer period over South America, an important system is one of the main modulators of the rainfall regime of the working regions, the SACZ. This system is a nebulosity zone that extends from the Amazon ...
Síntese de 4-(1-fenil-5-trifluormetil-1h-pirazol-4-il)-1h-1,2,3-triazóis promovida por dialquil biaril fosfinas e catálise metálica
(Universidade Federal de Santa Maria, 2017-08-11)
The present dissertation describes the development of a three-step, one-pot methodology, involving the sequential reactions of Sonogashira cross-coupling, deprotection of terminal alkyne (removal of trimethylsilane group), ...
Classificação de singularidades semi- hiperbólicas e nilpotentes de campos planares analíticos
(Universidade Federal de Santa Maria, 2017-07-12)
In this work, we present some results of Qualitative Theory of Planar Ordinary Differential Equations employed in the investigation of the behavior of solutions in the neighborhood of semi-hyperbolic and nilpotent singularities.
Caracterização e avaliação da atividade fotodinâmica de tetra-meso-[(piridil)porfirina]platina(II) frente à microorganismos
(Universidade Federal de Santa Maria, 2017-06-30)
This work deals with the synthesis of Tetra-meso-[(3-pyridyl)-chloro-2,2'-bipyridyl-platinum(II)]porphyrin (3-H2TPtPyP) and Tetra-meso-[(4-pyridyl)-chloro-2,2'-bipyridyl-platinum(II)]porphyrin (4-H2TPtPyP), starting from ...
Determinação de elementos do grupo da platina em carvão com alto teor de cinzas por ICP-MS
(Universidade Federal de Santa Maria, 2017-06-03)
In this work a method for the digestion of high ash content coal (>30%) using a high
pressure asher (HPA) system for further determination of platinum group elements
(PGEs) by inductively coupled plasma mass spectrometry ...
Sistema de recomendação de processos para o desenvolvimento de jogos digitais
(Universidade Federal de Santa Maria, 2017-04-06)
The digital gaming market is a billion dollar industry that faces issues in the way
games are developed. One method to easy these issues is to use developer aid tools
such as Recommendation Systems. These applications ...
Variabilidade das ondas de calor na região subtropical do Brasil
(Universidade Federal de Santa Maria, 2017-03-03)
Recently, much has been discussed in the scientific community about global warming since the 1970s and its impacts on temperature extremes. Some studies refer to a time of the 21st century. However, even if this gap is ...
Abordagem para geração de processos de software consistentes
(Universidade Federal de Santa Maria, 2017-12-12)
Choosing the most appropriate components to compose a specific process for a project and ensuring the
consistency of this are not trivial tasks, requiring great knowledge and involvement of a process engineer. This
work ...
Um framework para geração automática de sistemas multiprocessados reconfiguráveis heterogêneos
(Universidade Federal de Santa Maria, 2017-02-16)
Nowadays, embedded systems are getting more complex since functionalities are converging
to a single device, thus demanding for more processing capability. However, modeling
embedded processors is not a trivial task ...