Browsing by Author Gomes, Helena

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Showing results 1 to 11 of 11
Issue DateTitleAuthor(s)TypeAccess Type
15-Sep-2022Catalytic O2-steam gasification of biomass over Fe2-xMnxO3 oxides supported on ceramic foam filtersRuivo, Luis C. M.; Gomes, Helena; Lopes, Daniela V.; Yaremchenko, Aleksey; Vilas-Boas, Catarina; Tarelho, Luís A. C.; Frade, Jorge R.articleembargoedAccess
2021Conceções e práticas de professores sobre a história no ensino da matemática num contexto de formaçãoMartins, Patrícia Ana; Clain, Teresa Costa; Costa, Cecília; Pinto, Hélder; Ribeiro, António; Gomes, Helena; Menezes, LuísarticleopenAccess
Nov-2021A história da matemática no percurso formativo de futuros professores dos anos iniciaisMartins, A. Patrícia; Gomes, Helena; Menezes, Luís; Costa, Cecília; Pinto, Hélder; Ribeiro, António; Clain, Teresa CostabookPartopenAccess
2014On Randic SpreadGomes, Helena; Gutman, Ivan; Martins, Enide Andrade; Robbiano, María; San Martin, B.articleopenAccess
2023Portuguese teachers' conceptions and practices on the History of Mathematics in teaching (7th to 12th grades)Martins, Ana P.; Pinto, Hélder; Gomes, Helena; Menezes, LuísbookPartopenAccess
1-Mar-2022Siderite/Concrete catalysts for H2-enriched gas production from biomass steam gasificationRuivo, Luis; Oliveira, Hortência; Gomes, Helena; Cruz, Nuno; Yaremchenko, Aleksey; Tarelho, Luís A.C.; Frade, JorgearticleembargoedAccess
2017Spectra and Randic spectra of caterpillar graphs and applications to the energyAndrade, Enide; Gomes, Helena; Robbiano, MaríaarticleopenAccess
21-Jan-2021The H-join of arbitrary families of graphsCardoso, Domingos M.; Gomes, Helena; Pinheiro, Sofia JpreprintopenAccess
1-Sep-2022The H-join of arbitrary families of graphs: the universal adjacency spectrumCardoso, Domingos M.; Gomes, Helena; Pinheiro, Sofia J.articleembargoedAccess
2014Upper Bounds for Randic SpreadGomes, Helena; Martins, Enide; Robbiano, María; San Martín, BernardoarticleopenAccess
1-Mar-2016Upper bounds on the Laplacian spread of graphsAndrade, Enide; Gomes, Helena; Robbiano, Maria; Rodrigues, JonnathanarticleopenAccess