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14 results on '"Ando, Romulo Augusto"'

6. Airborne microplastics and SARS-CoV-2 in total suspended particles in the area surrounding the largest medical centre in Latin America

Author

Amato-Lourenço, Luís Fernando, de Souza Xavier Costa, Natália, Dantas, Kátia Cristina, dos Santos Galvão, Luciana, Moralles, Fernando Negri, Lombardi, Suzette Cleuza Ferreira Spina, Júnior, Alfredo Mendroni, Lindoso, José Angelo Lauletta, Ando, Rômulo Augusto, Lima, Felipe Gallego, Carvalho-Oliveira, Regiani, and Mauad, Thais

Published
2022
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8. Bottom-Feeders Eat Their Fiber: Ingestion of Anthropogenic Microdebris by Antarctic Deep-Sea Invertebrates Depends on Feeding Ecology

Author

Stefanelli-Silva, Gabriel, Friedemann, Pâmela, Rocha de Moraes, Beatriz, Ando, Romulo Augusto, Campos, Lúcia de Siqueira, Petti, Mônica Angélica Varella, Smith, Craig R., and Sumida, Paulo Yukio Gomes

Abstract

Anthropogenic debris has been documented in Antarctica for the past 40 years. Upon breakdown, large pieces become microdebris, which reaches the seafloor through a variety of physical and biological processes. The Antarctic benthos, deeply reliant on sinking organic particles, is thus vulnerable to ingesting microdebris. By using benthic specimens sampled between 1986 and 2016 and deposited in biological collections, we provide the first record of microdebris in Southern Ocean deep-sea invertebrates. Specimens from 15 species (n = 169 organisms) had their gut content examined, with 13 species yielding microdebris in the shape of fibers (n = 85 fibers). The highest ingestion percentages were recorded in the sea cucumbers Heterocucumis steineni(100%), Molpadia violacea(83%) and Scotoplanes globosa(75%), and in the brittle star Amphioplus peregrinator(53%). Deposit- and suspension-feeding were the strategies which yielded the most fibers, accounting for 83.53% of particles. Seven fibers were identified as microplastics, composed of polyamide, polycarbonate, polyester, polyethylene terephthalate, polyisoprene and polysulfone. We also provide the earliest record of a microplastic in Antarctica, a polysulfone fiber ingested by a Boreomysissp. mysid caught in 1986. The occurrence of fibers in the world’s most remote continental margin renews concerns of pollution in seemingly isolated regions.

Published
2024
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11. A simple visible light photo-assisted method for assembling and curing multilayer GO thin films

Author

da Silva, Mauro Francisco Pinheiro, de Oliveira, Débora Rose, Cavallari, Marco Roberto, Tadeu Dirani, Ely Antonio, Triboni, Eduardo Rezende, Paterno, Leonardo Giordano, Fonseca, Fernando Josepetti, Ando, Rômulo Augusto, da Silva Baptista, Maurício, Landers, Richard, Politi, Mário Jose, Isolani, Paulo Celso, and Bernardo Lenz e Silva, Guilherme Frederico

Published
2015
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14. VIBRATIONAL ANALYSIS OF COORDINATION COMPOUNDS OF NICKEL (II): AN APPROACH TO THE TEACHING OF POINT GROUPS

Author

Kogikoski, Sergio, Souza, Juliana Dos Santos, Paula Homem-de-Mello, Martinho, Herculano, Alves, Wendel Andrade, and Ando, Romulo Augusto

Subjects
IR and Raman spectroscopy, ComputingMilieux_COMPUTERSANDEDUCATION, group theory, didactic experiment
Abstract

This paper presents an IR and Raman experiment executed during the teaching of the course "Chemical Bonds" for undergraduated students of Science and Technology and Chemistry at the Federal University of ABC, in order to facilitate and encourage the teaching and learning of group theory. Some key aspects of this theory are also outlined. We believe that student learning was more significant with the introduction of this experiment, because there was an increase in the discussions level and in the performance during evaluations. This work also proposes a multidisciplinary approach to include the use of quantum chemistry tools.

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