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Síntese de peptídeos lineares precursores dos alcalóides Condalina-A, Scutianina-M, Scutianina-L e Adouetina-Y: estudos estruturais e suas atividades biológicas
(Universidade Federal de Santa Maria, 2011-07-10)
This thesis describes the synthesis of a series of peptides precursors of cyclopeptide
alkaloids Condaline-A, Scutianine-M, Scutianine-L e Adouetine-Y. Their antimicrobial
activity was evaluated to conduct a study of ...
Projeções climáticas e seu impacto na produtividade potencial da cultura do arroz no Equador utilizando o modelo Simple
(Universidade Federal de Santa Maria, 2022-01-28)
Ecuador is one of the most vulnerable countries to climate change and climate variability
phenomena that could significantly affect various sectors and aspects of human life, such
as economy and agriculture. Rice (Oryza ...
Características meteorológicas de escala regional e efeitos turbulentos do vento norte no sul do Brasil
(Universidade Federal de Santa Maria, 2022-04-07)
The flows induced by a complex topography influence at different scales the turbulent patterns
and other meteorological aspects in the planetary boundary layer (CLP). Mainly, in
southern Brazil, a geophysical flow forced ...
Estudo da transição de regimes de escoamentos na camada limite atmosférica noturna em função de parâmetros externos
(Universidade Federal de Santa Maria, 2020-12-22)
Among the causes associated with the variability in the mean wind velocity required for the transition of regimes in the stable boundary layer (SBL) in differente sites, are local characteristics of the experimental site, ...
Síntese e avaliação anti-SARS-CoV-2 e fotofísica dos 1,10- fenantrolina-4,5-imidazo-benzocalcogenazóis
(Universidade Federal de Santa Maria, 2022-08-29)
In this work, a new serie of 1,10-phenanthroline-4,5-imidazo-benzochalcogenazoles 5a-h/
6a-g obtained through the Debus-Radziszeski condensation was synthesized.
Benzoxazoles and benzothiazoles were previously synthesized ...
2-amino-3-arildiazenil-pirazolo[1,5-a]pirimidinas trifluormetilsubstituídas: síntese, derivatizações e avaliação das propriedades fotofísicas
(Universidade Federal de Santa Maria, 2022-08-19)
This thesis presents the results on the synthesis, structural study, and evaluation of the photophysical
properties of new (E)-5-(alkyl/aryl/heteroaryl)-2-amino-3-(aryldiazenyl)-7-(trifluoromethyl)pyrazolo[1,5-
a]pyrimidine ...
Variabilidades decadais a multidecadais do sistema de Monção da América do Sul: um estudo observacional e estatístico
(Universidade Federal de Santa Maria, 2021-09-03)
A monsoon system is characterized by large-scale seasonal wind reversal, due to the thermal gradient between
continents and oceans, and that has well-defined dry and wet seasons. However, the South American Monsoon
System ...
Coherent structures detection within a dense alpine forest
(Universidade Federal de Santa Maria, 2022-09-29)
Foi investigada a influência dos vórtices coerentes na estrutura da turbulência e no fluxo de
momento dentro de uma floresta de coníferas em um planalto alpino na Itália. A presença das
estruturas coerentes e suas escalas ...
Regioquímica da reação de alquilação entre 4- (trialometil)pirimidin-2(1h)-onas e 5-bromoenonas
(Universidade Federal de Santa Maria, 2022-09-23)
The present thesis reports the reactivity study between 5-bromo-1,1,1,-trifluoro-4-
methoxy(amino)pent-3-en-2-ones (5-bromoenones/enaminones) towards 5- or 6-
substituted 4-(trihalomethyl)pyrimidin-2(1H)-ones. During the ...
Tabernaemontana catharinensis A. DC: estudo dos metabólitos secundários, atividade biológica, cultivo in vitro e quantificação por RMN de alcaloides majoritarios
(Universidade Federal de Santa Maria, 2022-08-25)
The phytochemical investigation of the fractions from the leaves of Tabernaemontana catharinensis (Apocynaceae, popularly known as cobrina), led to the isolation of seven componds, three steroids: stigmasterol, β-sitosterol ...