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Determinação de arsênio e cromo em insumos farmacêuticos contendo enxofre por espectrometria de absorção atômica com forno de grafite e análise direta de amostras sólidas
(Universidade Federal de Santa Maria, 2007-09-17)
In this work a procedure was developed using direct solid sampling (DSS) and graphite furnace atomic absorption spectrometry (GF AAS). The study was applied to the determination of As in hydrochlorothiazide and barium ...
Estudo das propriedades eletrônicas e estruturais da heterojunção dos nanotubos de nitreto de boro e nitreto de alumínio
(Universidade Federal de Santa Maria, 2007-05-18)
In this work we present the study of the electronic and structural properties of the heterojunction formed by (10,0) zig-zag nanotubes of aluminum nitride (AlN) and boron nitride (BN). To simulate the system, we use periodic ...
Avaliação de arranjos supramoleculares de complexos triazenidos de mercúrio (II) e cobre(II)
(Universidade Federal de Santa Maria, 2007-10-10)
The reaction between deprotonated 1,3-Bis(3-acetylphenyl)triazene and Hg(CH3COO)2 in methanol, yields [Hg(RNNNR)(Py)] (R=3-CH3C(O)C6H4) (1), a triazenide dimeric mononuclear complex of mercury(II). The crystal structure ...
Sobre as concepções acerca da etnomatemática na perspectiva teórica de Sebastiani, Borba e D’Ambrosio
(Universidade Federal de Santa Maria, 2007-02-26)
Verificase que en la Educación Matemáticas hay una tendencia de ahondar estudios acerca de
cuestiones que involucran las diversas matemáticas provenientes de los grupos étnicos
(socioculturales) que existen en el mundo, ...
Análise das séries de distribuição e consumo de água em Santa Maria – RS utilizando a metodologia de Box & Jenkins
(Universidade Federal de Santa Maria, 2007-08-17)
Among the natural resources, water is the most important element for the species’
survival. With the population growth, the demand for water increases. This, allied to the
waste and the pollution of the water springs, ...
Uma aplicação da computação móvel para a empresa Chipcard
(Universidade Federal de Santa Maria, 2007-01-29)
Applications that use mobile devices are extremely interesting therefore allow
that the user has access information without being physically connected the Internet.
This work was developed aims to apply the knowledge ...
Síntese e análise estrutural de novos plímeros de coordenação envolvendo seleninatos de metais alcalinos e alcalinos terrosos
(Universidade Federal de Santa Maria, 2007-12-03)
Seven new compounds involving the phenylseleninato ligand and alkaline and alkaline earth metals were obtained in this work: poly-phenylseleninato lithium(I) (1), catena-polybis(aqua)-phenylseleninato sodium(I) (2), ...
Fundamentos conceituais da determinação do geóide pelo método gravimétrico
(Universidade Federal de Santa Maria, 2007-03-30)
Fundamental concepts of gravimetric geoid determination with the objective to didatic methodology. It s described that the study of the real Earth have a large number of variable, what becomes impracticable the problem ...
Estudo das características físico-químicas do solo em plantio de erva-mate (Ilex paraguariensis St. Hil.) através da geoestatística e do geoprocessamento
(Universidade Federal de Santa Maria, 2007-04-13)
This work was based in methods of classic descriptive statistics, methods of geostatistics and geoprocessing, in the identification of the size and the structure of the spatial variability of the physical and chemical ...
Estudo da difusão turbulenta empregando modelos estocásticos Lagrangeanos
(Universidade Federal de Santa Maria, 2007-03-09)
In this work, the Lagrangian stochastic particle model LAMBDA is utilized to simulate the dispersion and the transport of contaminants under different atmospheric conditions. The analysis employs three different field ...