Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Paulo Sérgio Calefi"'
Publikováno v:
Sisyphus, Vol 10, Iss 1 (2022)
Este artigo tem como objetivo apresentar e discutir as contribuições da utilização do role-play, do inglês jogo de papéis, na introdução de assuntos da Educação Ambiental para a promoção da formação crítica e reflexiva. Para tanto, foi
Externí odkaz:
https://doaj.org/article/2ce70e7be098434495e6ed37094101c1
Autor:
Paulo Sérgio Calefi, Ivan Fortunato
Publikováno v:
Ensino em Re-vista, Pp 474-485 (2018)
Este ensaio foi tecido a partir dos encontros de pesquisa promovidos pelo Núcleo de Estudos Transdisciplinares em Ensino, Ciência, Cultura e Ambiente (Nutecca), nos quais a busca por um ensino de qualidade têm se tornado o catalisador de discussõ
Externí odkaz:
https://doaj.org/article/a23a0f7eb9684931847b657df98ef99e
Autor:
Evelisy Cristina de Oliveira Nassor, Lilian Rodrigues Ávila, Paula Fabiana dos Santos Pereira, Katia Jorge Ciuffi, Paulo Sérgio Calefi, Eduardo José Nassar
Publikováno v:
Materials Research, Vol 14, Iss 1, Pp 1-6 (2011)
This work describes the hydrolytic sol-gel synthesis of silica particles prepared by a modified Stöber route, using the organofunctionalized alkoxide 3-methacryloxypropyl trimethoxysilane and tetraethylorthosilicate. The silica particles were obtain
Externí odkaz:
https://doaj.org/article/b48982b62ee846dcb96d805ee78ebf1a
Publikováno v:
Revista Thema, Vol 17, Iss 1, Pp 20-34 (2020)
Uma sequência didática seguindo a metodologia dos Três Momentos Pedagógicos, estruturada por Delizoicov, e utilizando a azia para contextualizar e problematizar o conteúdo de funções químicas foi aplicada no curso de Licenciatura em Química
Externí odkaz:
https://doaj.org/article/2b5e401d2d044e24b2016c1e56cc5d20
Autor:
Edimilson Cândido Leonel, Emerson Henrique de Faria, Rosalinda Chedian Pimentel, Eduardo José Nassar, Katia Jorge Ciuffi, Márcio José dos Reis, Paulo Sergio Calefi
Publikováno v:
Química Nova, Vol 35, Iss 7, Pp 1407-1411 (2012)
The aim of this work was to contribute to the creation of new ways of treating wastewater contaminated with Cr3+, based on solid-liquid adsorption. An adsorbent material was prepared by functionalization of kaolinite with glycerin biodiesel by-produc
Externí odkaz:
https://doaj.org/article/2548f15e5618472ebe5c2cbc2584c9c2
Autor:
Faley Jean de Sousa, Gilberto Pansani Altino de Lima, Lílian Rodrigues Ávila, Katia Jorge Ciuffi, Paulo Sergio Calefi, Eduardo José Nassar
Publikováno v:
Materials Research, Vol 13, Iss 1, Pp 71-75 (2010)
The sol-gel process is very effective for the preparation of new materials with potential applications in optics, sensors, catalyst supports, coatings, and specialty inorganic polymers that can be used as hosts for the accommodation of organic molecu
Externí odkaz:
https://doaj.org/article/1298e304b75747d9884a8136cacc9427
Autor:
Alexandre Cestari, Lilian Rodrigues Avila, Evelisy Cristina Oliveira Nassor, Paula Fabiana dos Santos Pereira, Paulo Sergio Calefi, Katia Jorge Ciuffi, Shirley Nakagaki, Antonio Carlos Pereira Gomes, Eduardo Jose Nassar
Publikováno v:
Materials Research, Vol 12, Iss 2, Pp 139-143 (2009)
Glass ionomer cements are widely employed in dentistry due to their physical, biological and mainly anti-caries properties. Glass ionomers consist of an aluminosilicate glass matrix modified with other elements, and they contain large quantities of f
Externí odkaz:
https://doaj.org/article/2fc34cf9921c43baa01e8575f0b9ae13
Autor:
Emerson Henrique de Faria, Alex Lemes Marçal, Eduardo José Nassar, Katia Jorge Ciuffi, Paulo Sergio Calefi
Publikováno v:
Materials Research, Vol 10, Iss 4, Pp 413-417 (2007)
TiO2 films have various applications, among them solar cells and photodegradation of pollutants. In this study, we investigated TiO2 films functionalized with the organic dye cyanidin extracted from black mulberry (Morus nigra). The TiO2 was function
Externí odkaz:
https://doaj.org/article/3f859144581c4f4f927f6123625f0ebd
Autor:
Eduardo J. Nassar, Lilian R. Ávila, Paula F. S. Pereira, Evelisy C. O. Nassor, Alexandre Cestari, Katia J. Ciuffi, Paulo Sergio Calefi
Publikováno v:
Química Nova, Vol 30, Iss 7, Pp 1567-1572 (2007)
In this work, we report the synthesis and the photoluminescence features of a Eu(III)-doped modified silica matrix obtained by the sol-gel method. The matrix was prepared by reaction between tetraethylorthosilicate and phenyltriethoxysilane alkoxide.
Externí odkaz:
https://doaj.org/article/932dea8df2d541edbcdef851cc75c799
Autor:
Lucas Alonso Rocha, Lilian Rodrigues Avila, Bruno Leonardo Caetano, Eduardo Ferreira Molina, Hérica Cristina Sacco, Katia Jorge Ciuffi, Paulo Sergio Calefi, Eduardo José Nassar
Publikováno v:
Materials Research, Vol 8, Iss 3, Pp 361-364 (2005)
In this work titanium sol was prepared from tetraethylorthotitanate (TEOT) in ethanol, stabilized with beta-diketonate 2,4 pentanedione in molar ratio 1:1 homogenized by magnetic stirring, europium ion was add as structural probe. The xerogels were h
Externí odkaz:
https://doaj.org/article/1ec3219e11f047fcbcfa882033ebbec9