Buscar
Itens para a visualização no momento 21-30 of 118
Estudo computacional da eletroporação de membranas lipídicas
(Universidade Federal de Santa Maria, 2016-08-03)
In this work we present a computational study of the electroporation process of lipid
membranes in the presence of water. First, we developed an investigation of the
formation of pores through simulations based on classical ...
Um sistema de baixo custo para localização utilizando sensores posicionais e estereoscopia visual
(Universidade Federal de Santa Maria, 2016-08-26)
One of the problems in robotics is called Simultaneous Location and Mapping (SLAM), and
lies in the necessity of a robot to localize itself on the environment while simultaneously
mapping it. The use of stereoscopic ...
Energia de interação cátion-ânion de líquidos iônicos dicatiônicos em fase gasosa
(Universidade Federal de Santa Maria, 2016-08-05)
Electrospray ionization mass spectrometry (ESI-MS) with induced collision energy was used to carry out a comprehensive study on the interaction energies between cations and anions of dicationic ionic liquids. The influence ...
Nanotubos de carbono de paredes múltiplas dopados com nitrogênio e decorados com nanopartículas de paládio e suas aplicações em reações de catálise
(Universidade Federal de Santa Maria, 2016-02-05)
The present work describes the synthesis of a new catalyst of palladium nanoparticles supported on multi-walled carbon nanotubes containing nitrogen (Pd@CNxNCPM) 1 and its use in carbon-carbon coupling reactions (Suzuki ...
Agrotóxicos em óleos comestíveis: avaliação de procedimento de purificação de extrato empregando diferentes adsorventes e validação por UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2016-12-16)
The goal of this study was to evaluate the efficiency of several adsorbents on fat removal from extracts of edible oil matrices (olive, soya and sunflower) during residue determination of 165 pesticides employing liquid ...
Síntese e caracterização de complexos organometálicos de Cu(I), Cu(II) e Ni(II) com ferroceno-triazenos e triazenido de Hg(II) com interação Metal-Areno-Pi
(Universidade Federal de Santa Maria, 2016-01-29)
This Thesis aimed the synthesis of new metal complexes with triazenido ligands and triazenes chains directly linked to ferrocene fragment by a new synthesis methodology. The complex bis-[1,3-bis(2-biphenyl)triazenido-κN1 ...
Expressão numérica: a hierarquia das quatro operações matemáticas
(Universidade Federal de Santa Maria, 2016-12-06)
For the development of this work, in the introduction we present a few topics which motivated it, as well as the research problem and its reason. The main objective of this dissertation is to research on the possible reasons ...
Síntese de (5-trifluormetil-1H-pirazol-1-IL)(quinolin-4-IL)metanonas de interesse farmacológico
(Universidade Federal de Santa Maria, 2016-07-22)
A convergent synthesis of a series of 16 new polysubstituted (5-hydroxy-5-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-1-yl)(quinolin-4-yl)methanones, starting from isatin and alky(aryl/heteroaryl) ketones, is described. The ...
N-alquilação regiosseletiva de pirazóis empregando 4-alcóxi(amino)-5-bromo-1,1,1-trifluorpent-3-en-2-onas
(Universidade Federal de Santa Maria, 2016-08-19)
This work presents the synthesis of three new series of nitrogen-heterocycles containing the substituent trifluoromethyl, exploiting the synthetic versatility and regioselectivity of 4-alkoxy-5-bromo-1,1,1-trifluorpent-3-en-2-ones ...
Estudo da casca da raiz da espécie Maytenus ilicifolia Mart. ex Reissek, modificações estruturais do composto β-sitosterol e análises das atividades antimicrobianas
(Universidade Federal de Santa Maria, 2016-08-05)
This dissertation describes the phytochemical study of Maytenus ilicifolia Mart species. ex Reissek belonging to Celastreceae family. Further, structural modification reactions were performed in β-sitosterol compound, in ...