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Avaliação da associação molecular de complexos metálicos com ligante triazenido 1-óxido
(Universidade Federal de Santa Maria, 2008-06-16)
In this dissertation were synthetized six compounds, of the which one is free ligand 1- phenyl-3-(4-nitrophenyl) triazene 1-oxide (1) and five are triazenido complexes of [Ni(O2NC6H4NNN(O)C6H5)2(C5H5N)2] (2), [Zn(O2NC6H4 ...
Reações de ciclocondensação de cianoacetoidrazida com enonas halometil-substituídas
(Universidade Federal de Santa Maria, 2008-02-22)
The synthesis of thirteen 3-(R1), 4-(R2) and 5-(R3)-substituted 1-cyanoacetyl-5-hydroxy-4,5-dihydro-1H-pyrazoles from the cyclocondensation reaction of 4-alkoxy-3-alken-2-ones [R3C(O)C(R2)=C(R1)(OR), where R3 = CF3,
CCl3, ...
Síntese de 2-(1h-pirazol-1-il)-5-(1h-pirazol-1-il-1-carbonil) piridinas
(Universidade Federal de Santa Maria, 2008-02-20)
This work describes the synthesis of a new series of 2-[3-alkyl(aryl/heteroaryl)-5-trihalomethyl-5-hydroxy-4,5-dihydro-1H-pyrazol-1-il]-5-[3-alkyl(aryl/heteroaryl)-5-trihalomethyl-5-hydroxy-4,5-dihydro-1H-pyrazol-1-il-1- ...
Síntese de 5-hidróxi-3-(1,1-dimetoxietan-2-il)-5-trifluormetil-2-pirazolinas e 3-(1,1-difluoretan-2-il)-1H-pirazóis análogos
(Universidade Federal de Santa Maria, 2008-02-01)
This work describes, at first, the synthesis of 4,6,6-trimethoxy-1,1,1-trifluorohex-3-en-2-one by the acylation reaction of 1,1,3,3-tetramethoxybutane, in 65% yields.
Afterwards, the synthesis of a new series of ...
Variações espaciais de propriedades físicas do remanescente de supernova RCW 103
(Universidade Federal de Santa Maria, 2008-06-19)
Since the observation of the supernova event SN 1987A, observational research on supernova and supernova remnants, including the ones on the optical spectrum,
has been much explored. However, most of these studies have ...
Estudo do ciclo diário da camada limite planetária através da simulação dos grandes turbilhões
(Universidade Federal de Santa Maria, 2008-12-15)
The PBL is the region on the troposphere characterized by existence of turbulence (BUSINGER, 1981). Turbulent flow is that when the fluctuations of the variables that describe the flow are amplified in time and space ...
Modelagem lagrangeana aplicada à dispersão de contaminantes em diferentes condições de estabilidade atmosférica
(Universidade Federal de Santa Maria, 2008-04-25)
In this dissertation, it was estimated contaminants concentration in different stability conditions of the Planetary Boundary Layer. In order to do this, it was used the Lagrangian stochastic model. The experiments by ...
Nanotubos de carbono interagindo com vitaminaS B3 e C: um estudo de primeiros princípios
(Universidade Federal de Santa Maria, 2008-03-18)
This work presents a theoretical study about the interaction between pristine or functionalized B3 and C vitamins with semiconducting carbon nanotubes (8,0) through first principles simulations. We evaluate the structural ...
Influência do acréscimo de satélites glonass sobre a qualidade de coordenadas estimadas com satélites GPS em local de difícil rastreio
(Universidade Federal de Santa Maria, 2008-11-11)
From estimate coordinates point through the use of GPS satellites constellation, located in difficult tracing GPS signs place, by means of using coordinated procedures of transport with the use of receiving devices with ...
Mortalidades por causas violentas: uma análise dos homicídios em Santa Maria - RS
(Universidade Federal de Santa Maria, 2008-04-04)
The deaths of murder occupy position of prominence, and people have been
struck by massacres, executions and clashes between gangs of drug dealers, who
increasingly seem to take over of the daily life of urban centers. ...