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Itens para a visualização no momento 1221-1230 of 1418
Metodologia automatizada para descrever a cobertura de sinal móvel em rodovias: estudo de caso considerando incerteza de dados
(Universidade Federal de Santa Maria, 2023-03-24)
Due to the wide geographical distribution or the existence of extensive road infrastructure,
ensuring that mobile operators provide adequate service along roads can be challenging.
An automated methodology for describing ...
Desenvolvimento e validação de método para determinação de etilenotiouréia em urina empregando HPLC UV
(Universidade Federal de Santa Maria, 2008-03-28)
In order to supply the world-wilde demand for food, it is essential to use the pesticides to protect the crops against pests and diseases. But the indiscriminate and injudicious use of these compounds have resulted in ...
A tecnologia móvel, integrada a receptores GPS bluetooth, aplicada à gestão tributária urbana: cadastro do IPTU e ISSQN
(Universidade Federal de Santa Maria, 2008-01-17)
The process of tax decentralization and the growing participation of municipal governments in the set of tax resources of Brazil, amplify its expansion in the management of public services dedicated to the population, ...
O ensino de geografia e os estudantes/trabalhadores - uma análise a partir de experiência com EJA em Sapiranga - RS
(Universidade Federal de Santa Maria, 2009-07-17)
The organization of production activities, historically, has several relations which influence the world s socio-spatial design. One of the social groups which are
most interested in understanding how such labor relations ...
Síntese e atividade antimicrobiana de 3-trifluormetil(oxo)-pirimido[1,2-a]benzimidazóis
(Universidade Federal de Santa Maria, 2005-02-15)
This work presents the synthesis of a series of 3-trifluormethyl(oxo)-pyrimido[1,2-a]benzimidazoles from the cyclocondensation reaction between 2-amino-1H-benzimidazol and 4-alcoxy-1,1,1-trihalo-3-alquen-2-ones.
The ...
Desenvolvimento de método multirresíduo para determinação de agrotóxicos em suco de uva integral utilizando método QuEChERS acetato e LC-MS/MS
(Universidade Federal de Santa Maria, 2021-02-26)
In the last century, pesticides have been widely used in agriculture due to the many benefits related to the quality and quantity of crops produced. Although they contribute to pest control and increased productivity, the ...
Agregação e força de interação cátion-ânion de líquidos iônicos dicatiônicos derivados do imidazol com os ânions ascorbato e ibuprofenato
(Universidade Federal de Santa Maria, 2021-01-29)
Imidazolium-based ionic liquids (ILs) demonstrate some advantages over the monocationic analogues, as higher fusion temperature, higher thermal stability and less toxicity. Dicationic ILs also form tridimensional aggregates ...
Síntese, caracterização e aplicação biológica de complexos derivados de bismuto(III) com ligantes do tipo aroiltioureias
(Universidade Federal de Santa Maria, 2020-03-06)
This work describes the synthesis, structural characterization and biological applications of four new bismuth(III) compounds with aroylthioureas as ligands: 1 - [Bi(La-O,S)3(HLa-S)], 2 - [Bi2(Lb-O,S)4(-Lb-12O,S,2 ...
Espectrometria de absorção atômica com tubo aquecido na chama e amostragem direta de sólidos para determinação de manganês e níquel em coque de petróleo
(Universidade Federal de Santa Maria, 2009-07-28)
A solid sampling flame furnace atomic absorption spectrometry (SS-FF-AAS)
system was developed in this work for Mn and Ni determination in petroleum coke.
The proposed solid sampling system was made in quartz, with two ...
Physical-chemical study of effects of functional groups on adsorption of naphthalene and its derivatives onto high-density polyethylene microplastics
(Universidade Federal de Santa Maria, 2023-03-15)
Microplastics (MP) have received great attention due to the mass-produced
residues discharged into the environment. MP are ideal for adhering to organic pollutants
that can be easily dispersed, thus posing risks to human ...