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Siqueira, Maria Carolina Bulhosa; Gervini, Vanessa Carratu; Oliveira, Leandro; Locatelli, Aline; Oliveira, Adriano Bof de
(2012)
In the title compound, C11H15N3O3S, the C-S-N(H)-N linkage is nonplanar, the torsion angle being 75.70 (12)°. The compound has two almost planar fragments linked to the S atom: the hydrazone-derivative fragment [(HONC4H6)N-N(H)-] ...
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Galiazzi, Maria do Carmo; Gonçalves, Fábio Peres
(2004)
In this paper we discuss the characteristics of experimental activities described by teachers and students in a teaching credentials course in Chemistry. The research pointed out a set of characteristics that seem to favor ...
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Azevedo, Renato Preigschadt de; Foster, Douglas Camargo; Nunes, Raul Ceretta; Kozakevicius, Alice de Jesus
(EDGRAF, 2010)
The network traffic analysis is a fundamental area on network management because the network anomalies may affect the network
quality of service. However, the data network traffic anomalies are still a critical issue. On ...
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Braga, Anna Rafaela Cavalcante; Silva, Marceli Fernandes; Oliveira, José Vladimir de; Treichel, Helen; Kalil, Susana Juliano
(2014)
This study aimed to evaluate B-galactosidase immobilization. For this purpose, the ionic strength of the buffer, reaction time, amount of the immobilization support, and pH were evaluated by a central composite design. ...
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Duarte, Rodrigo da Costa; Ongaratto, Renata; Piovesan, Luciana Almeida; Lima, Vania Rodrigues de; Soldi, Valdir; Merlo, Aloir Antonio; D'Oca, Marcelo Gonçalves Montes
(2012)
This work reports the synthesis of new fatty N-acylamino acids and N-acylamino esters from the C16:0, C18:0, C18:1, and C18:1(OH) fatty acid families and demonstrates the activity of these compounds as organogel agents. ...
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Duarte, Rodrigo da Costa; Ongaratto, Renata; Piovesan, Luciana Almeida; Lima, Vania Rodrigues de; Soldi, Valdir; Merlo, Aloir Antonio; D' Oca, Marcelo Gonçalves Montes
(Elsevier, 2012)
This work reports the synthesis of new fatty N-acylamino acids and N-acylamino esters from the C16:0, C18:0, C18:1, and C18:1(OH) fatty acid families and demonstrates the activity of these compounds as organogel agents. ...
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Silva, Adriano da; Fontana, Éliton; Mariani, Viviana Cocco; Marcondes, Francisco
(2012)
Natural convection in trapezoidal cavities, especially those with two internal baffles in conjunction with an insulated floor, inclined top surface, and isothermal left-heated and isothermal right-cooled vertical walls, ...
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Galiazzi, Maria do Carmo; Rocha, Jusseli Maria de Barros; Schmitz, Luiz Carlos; Souza, Moacir Langoni de; Giesta, Sérgio; Gonçalves, Fábio Peres
(2001)
Neste artigo, apresentamos os resultados de uma investigação coletiva sobre os objetivos
das atividades experimentais no ensino médio, apontando para as possibilidades da pesquisa em sala de aula, como desenvolvimento ...
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Santos, Edmar; Coelho, Regina Célia
(EDGRAF, 2010)
This paper presents a proposal to solve the Inverse Problem of Lindenmayer in the deterministic and
free-context L-system grammar class. The proposal of this paper is to show a methodology that can
obtain an L-system ...
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Padilha, Márcia Elisa da Silva; Ruiz, Walter Augusto
(2010)
Este trabalho teve por objetivo estabelecer um processo para obter e caracterizar os produtos da cristalização das frações do óleo de pescado hidrolisado com lipase reática. A hidrólise enzimática foi realizada em 60 minutos ...
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Moura, Jaqueline Motta de; Ferreira, Andrio Felipe; Silva, Fernando; Rizzi, Jaques; Pinto, Luiz Antonio de Almeida
(FURG, 2005)
A quitina, b-(1-4)-N-acetil-D-glucosamina, é encontrada nos exoesqueletos de crustáceos, na parede celular de fungos e em outros materiais biológicos, e é através dela que se obtém a quitosana, b-(1-4)-Dglucosamina. A ...
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Weska, Raquel; Moura, Jaqueline Motta de; Rizzi, Jaques; Pinto, Luiz Antonio de Almeida
(2007)
A quitosana é um biopolímero derivado da quitina, que é encontrada na carapaça e exoesqueleto de crustáceos e outras fontes. O objetivo deste trabalho foi a obtenção de quitosana a partir de carapaças de siri, sendo esta ...
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Colla, Luciane Maria; Costa, Jorge Alberto Vieira
(2003)
Biossurfactantes são compostos ativos em superfícies produzidos por microrganismos e que têm recebido crescente interesse nas últimas décadas pelas vantagens que possuem sobre os surfactantes químicos,tais como biodegrabilidade, ...
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Fontana, Aline; Centenaro, Graciela Salete; Palezi, Simone Canabarro; Prentice-Hernández, Carlos
(2009)
The objective of this study was to obtain and evaluate physicochemical and functional properties of protein concentrates from Micropogonias furnieri produced by pH shifting process, using alkaline and acid solubilization ...
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Silva, Diecson Ruy Orsolin da; Avila, Luis Antonio de; Agostinetto, Dirceu; Bundt, Angela Da Cas; Primel, Ednei Gilberto; Barbosa, Sergiane Caldas
(2011)
The objective this study was to monitor pesticide residues in groundwater at three different times and in seven regions producing rice in southern Brazil, in the 2007/08 season. Imazethapyr and fipronil were found in all ...
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Medeiros, Fabiana Oliveira de; Alves, Fernanda Germano; Lisboa, Cristiane Reinaldo; Martins, Daniela de Souza; Burkert, Carlos André Veiga; Kalil, Susana Juliano
(2008)
The optimization of a traditional technique of cellular disruption by abrasion was carried out and a process using ultrasonic waves associated with glass pearls to extract β-galactosidase from Kluyveromyces marxianus ...
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Martins, Bianca Barreto; Bresolin, Leandro; Gervini, Vanessa Carratu; Behm, Mariana Boneberger; Oliveira, Adriano Bof de
(2011)
The reaction of hydroxylamine hydrochloride with isatin in ethanol, catalysed with HCl and neutralized with Na2CO3, yielded the one-dimensional coordination polymer, catena-poly[[[aquasodium]-di-μ-aqua-[aqua ...
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Oliveira, Elisangela Gonçalves de; Duarte, Jéssica; Barros, Kelly Moraes de; Crexi, Valéria Terra; Pinto, Luiz Antonio de Almeida
(2010)
The aim of the study was the optimisation of Spirulina platensis drying on convective hot air through the response surface methodology. The responses were thiobarbituric acid (TBA) and phycocyanin loss percentage values ...
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Cardoso, Liziane Vaz; Tomasini, Débora; Sampaio, Maicon Renato Ferreira; Barbosa, Sergiane Caldas; Kleemann, Natiele; Primel, Ednei Gilberto; Gonçalves, Fábio Ferreira
(2011)
Neste trabalho, foi desenvolvido e validado um método analítico baseado na extração em fase sólida(SPE) e cromatografia líquida acoplada a espectrometria de massas em tandem (LC-APCI-MS/MS)para a determinação e confirmação ...
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Dias, Adriana Neves; Cerqueira, Maristela Barnes Rodrigues; Moura, Renata Rodrigues de; Kurz, Márcia Helena Scherer; Clementin, Rosilene Maria; D'Oca, Marcelo Gonçalves Montes; Primel, Ednei Gilberto
(2012)
This paper describes the optimization of a method of simultaneous determination of glycerides, free and total glycerol in biodiesel ethyl esters from castor oil by using gas chromatography. Changes were proposed for the ...