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Itens para a visualização no momento 31-40 of 215
Condição de existência de um triângulo: uma abordagem via fluxogramas
(Universidade Federal de Santa Maria, 2020-02-27)
In this work we present a didactic sequence that deals with the theme: condition of the existence of a triangle, focusing on flowcharts. To this end, a research on the topic was carried out in the Catalog of Theses and ...
Síntese e estudo supramolecular de bis-ureias trissubstituídas: mecanismos de cristalização
(Universidade Federal de Santa Maria, 2021-05-28)
This work presents the synthesis and molecular and supramolecular study of an unprecedented series of trisubstituted bis-ureas. In all, six molecules were synthesized, in which the substituents were varied and the methylene ...
Síntese de 1,2,3-triazóis-1,4-dissubstituídos contendo organocalcogênios derivados de 4-(azidometil)-2-fenil-1,3-calcogenazóis via reação de cicloadição 1,3-dipolar
(Universidade Federal de Santa Maria, 2020-10-20)
In this present work, an unprecedented series of 4-((4-((arylchalcogen)methyl)-1H-1,2,3-triazol-1-yl)
methyl)-2-phenylchalcogenazole 20 and 21 was synthesized with interest in the potential biological,
because to the ...
Bis(alquilaril, aril)piridina-2,6-dicarboxiamidas: estrutura molecular, supramolecular e polimorfismo
(Universidade Federal de Santa Maria, 2020-03-02)
This work presents the study of intermolecular interactions and the molecular association process of bis (alkylaryl, aryl) pyridine-2,6-dicarboxamides, where the alkylaryl substitutes are (1) 2,2-diphenylethyl, (2) phenylethyl ...
Síntese, caracterização e avaliação da atividade antimicobacteriana de compostos de coordenação derivados do disseleneto de 2,2’-bis(3-aminopiridina)
(Universidade Federal de Santa Maria, 2020-02-28)
This work describes the synthesis and characterization of seven new
coordination compounds derived from 2,2'-bis-(3-aminopyridine) diselenide
interacting with metal ions of diferent degree of hardness. Among the ...
Compostos de coordenação contendo o ligante 3-amino-2-((piridin-2-ilmetil)selanil)piridina: análise estrutural e atividade antibacteriana
(Universidade Federal de Santa Maria, 2021-03-03)
This work describes the synthesis, structural characterization, and antibacterial evaluation of eight new coordination compounds (1-8), derived from CuI, CuII, CoII, and ZnII, with 3-amine-2-((pyridin-2-ylmethyl)selanyl)pyridine ...
Extensão da notação e modelo de processo de negócio para inclusão de riscos
(Universidade Federal de Santa Maria, 2021-02-03)
Business Process Model and Notation (BPMN) is currently a process modeling language with
the best didactics for use, with a structure that is easy to understand and use. However, the
notation does not address any element ...
Determinação de resíduos de glifosato e ácido aminometilfosfônico em água empregando derivatização com FMOC-Cl e LC-MS/MS
(Universidade Federal de Santa Maria, 2020-02-21)
A simple and easy method based on the derivatization for determinação of glyphosate and aminomethylphosphonic acid (AMPA) in water and subsequent determination by liquid chromatography coupled with mass spectrometry in ...
Síntese, caracterização e agregação de líquidos iônicos mono- e dicatiônicos derivados de aminoácidos
(Universidade Federal de Santa Maria, 2020-02-20)
This study presents the synthesis and characterization of mono and dicationic ionic liquids (ILs), with anions derived from amino acids (Arginine, Glycine, Lysine and Serine). The influence of the molecular structure of ...
Determinação multirresíduo de agrotóxicos em água empregando SPE e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2020-03-02)
The presence of organic pollutants in water resources is a major concern. The most commonly reported of these pollutants are generated by domestic, agricultural and industrial activities. Organic pollutants produce a wide ...