About the Authors

Éder Milton Schneider

Affiliation Instituto de Física, UFRGS, Porto Alegre, RS, Brazil

José Roberto Iglesias

joseroberto.iglesias@gmail.com

Affiliations Instituto de Física, UFRGS, Porto Alegre, RS, Brazil, Programa de de Pós-Graduação em Economia, Escola de Gestão e Negócios, Unisinos, São Leopoldo, RS, Brazil, Instituto Nacional de Ciência e Tecnologia de Sistemas Complexos, Rio de Janeiro, RJ, Brazil

Karen Hallberg

Affiliation Centro Atómico Bariloche and Instituto Balseiro - CNEA, CONICET, 8400 S. C. de Bariloche, Argentina

Marcelo Néstor Kuperman

Affiliation Centro Atómico Bariloche and Instituto Balseiro - CNEA, CONICET, 8400 S. C. de Bariloche, Argentina

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EMS JRI KH MNK. Performed the experiments: EMS. Analyzed the data: EMS JRI KH MNK. Wrote the paper: EMS JRI KH MNK.