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Resultados 76119-76138 de 83280
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Synthesis of alkylseleno-carbohydrates and evaluation of their antioxidant properties
(2015) [Artigo de periódico]In the present study, we describe the synthesis of alkylseleno carbohydrates with different sugar scaffolds and the evaluation of their antioxidant activity profile. A compound possessing a C8 alkyl chain presented the ... -
Synthesis of Bi2FexNbO7 films applied as a catalyst for hydrogen production using visible-light photo-electrolysis
(2019) [Artigo de periódico]The seek for feasible sustainable mobility alternatives is a major concern of the society nowadays. By its turn, the production of hydrogen represents one of the main lines of study on clean energy, since hydrogen presents ... -
Synthesis of cobalt ferrite (CoFe2O4) by combustion with different concentrations of glycine
(2019) [Artigo de periódico]Among the wide range of applications of Cobalt Ferrite (CoFe2O4), its usage for the manufacturing of modern electronic devices such as solar panels, capacitors and batteries has been studied´ lately. Hence, solar-powered ... -
Synthesis of Controllers for Continuous-Time Delay Systems with Saturating Controls via LMI's
(2000) [Artigo de periódico]The stabilization of linear continuous-time systems with time delay in the state and subject to saturating controls is addressed. Sufficient conditions obtained via a linear matrix inequality (LMI) formulation are stated ... -
Synthesis of dihydropyrimidin-2-one/thione library and cytotoxic activity against the human U138-MG and rat C6 glioma cell lines
(2011) [Artigo de periódico]Duas séries de 4-aril-3,4-diidropirimidin-2(1H)-(tio)onas incluindo monastrol (1a), foram sintetizadas por uma metodologia não agressiva ao meio ambiente baseada no uso combinado de ácido cítrico ou ácido oxálico na presença ... -
Synthesis of GaN by N ion implantation in GaAs (001)
(1995) [Artigo de periódico]Both the hexagonal and cubic GaN phases were synthesized in GaAs ~001! by 50 keV N ion implantation at 380 °C and subsequent furnace annealing at 850–950 °C for 10 min–2 h. For a fluence of 1.531017 cm22, transmission ... -
Synthesis of hydro-sodalite as a heterogeneous catalyst for reaction kinetics of soybean oil trans-esterification
(2018) [Artigo de periódico]coal fly ash as a catalyst, under reaction conditions with different temperatures and reaction times. The catalyst characterization revealed that zeolite type hydro-sodalite was synthesized and consists of mesoporous ... -
Synthesis of imidazole-derived ionic liquids from monoterpenes by means of the sonogashira reaction
(2012) [Artigo de periódico]This work reports the functionalization of monoterpenoids with 2-iodo-1-methyl-1H-imidazole using Sonogashira crosscoupling reactions. Natural monoterpenes were also modified to obtain the corresponding alkynes which were ... -
Synthesis of limonene B-amino alcohol derivatives in support of new antileishmanial therapies
(2008) [Artigo de periódico] -
Synthesis of magnetic nanoparticles functionalized with histidine and nickel to immobilize His-tagged enzymes using β-galactosidase as a model
(2021) [Artigo de periódico]The aim of this study was to synthesize iron magnetic nanoparticles functionalized with histidine and nickel (Fe3O4-His-Ni) to be used as support materials for oriented immobilization of His-tagged recombinant enzymes of ... -
Synthesis of nanocrystalline nickel oxide powders via glycine-nitrate combustion
(2005) [Artigo de periódico]NiO is a candidate material for a variety of potential applications, for example, active optical filters, antiferromagnetic layers, coloring agents for enamel, pigments, catalysts, cathode materials for alkaline batteries ... -
Synthesis of new family of thiazoline and thiazole esters and investigation of their thermal properties
(2014) [Artigo de periódico]A new family of thiazoline and thiazole esters has been synthesized and their thermal properties are presented and discussed. Thiazoline esters were obtained by cyclization reaction from 4-substituted benzenenitrile and ... -
Synthesis of silica xerogels with high surface area using acetic acid as catalyst
(2007) [Artigo de periódico]Nesse trabalho foi estudada a influência do ácido acético na estrutura de poros e na área superficial de sílicas preparadas pelo método sol-gel. Condições experimentais de síntese, tais como temperatura de policondensação ... -
Synthesis of stimuli-sensitive copolymers by RAFT polymerization : potential candidates as drug delivery systems
(2014) [Artigo de periódico]Poly(2-(dimethylamino)ethylmethacrylate-b-methymethacrylate) (PDMAEMA-b-PMMA) poly(2- (dimethylamino)ethylmethacrylate-b-vinylcaprolactam-b-(2-(dimethylamino)ethyl methacrylate) (PDMAEMA-b-PVCL-b-PDMAEMA) and poly(vinylc ... -
Synthesis of tacrine-lophine hybrids via one-pot four component reaction and biological evaluation as acetyl- and butyrylcholinesterase inhibitors
(2013) [Artigo de periódico]A novel series of tacrine-lophine hybrids was synthesized and tested for their ability to inhibit acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) with IC50 in the nanomolar concentration scale. The key step ... -
Synthesis of the integrated spectrum of metal-rich globular clusters using the hr diagram and a stellar library
(1995) [Artigo de periódico]An average integrated spectrum of the nearlysolar metallicity globular clusters NGC 6528, NGC 6553 and NGC 6440 is synthesized in the range 3500 < λ < 9750Å with a library of stellar spectra and constraints provided by the ... -
Synthesis of WC-12wt%Co nanocomposites by high energy ball milling and their morphological characterization
(2015) [Artigo de periódico]In this work micrometric particles of WC and Co were processed by high energy ball milling in a planetary ball mill. We evaluated the phase formation and changes in microstructure of WC-12wt%Co as a result of the following ... -
Synthesizing the connections between environmental disturbances and zoonotic spillover
(2022) [Artigo de periódico]Zoonotic spillover is a phenomenon characterized by the transfer of pathogens between different animal species. Most human emerging infectious diseases originate from non-human animals, and human-related environmental ... -
A systematic approach to construct credit risk forecast models
(2011) [Artigo de periódico]Due to the recent growth in the consumer credit market and the consequent increase in default indices, companies are seeking to improve their credit analysis by incorporating objective procedures. Multivariate techniques ... -
Systematic eco-innovation in Lean PSS environment : an integrated model
(2016) [Trabalho completo publicado em evento]