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Elder Yokoyama

Universidade de Brasília (UnB)

Dr

Instituto de Geociências

Campus Darcy Ribeiro, Asa Norte

Brasilia, 70910-900

Brazil

  • Universidade de Brasília (UnB)

SCHOLARLY PAPERS

7

DOWNLOADS

426

TOTAL CITATIONS

0

Scholarly Papers (7)

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1.

Estimating the Geometry of Magnetization Distributions within Ageological Sample from Magnetic Microscopy Images

Number of pages: 18 Posted: 15 Jan 2025
Lanna Sinimbu, Andre L. A. Reis, Beatriz Marques Ereias, Leosdan F. Noris, Elder Yokoyama, Leonardo A. F. Mendoza, Caique D. de Abreu Lima, Frederico Viera Gutierrez, Cleânio da Luz Lima, Ricardo Ivan Ferreira da Trindade, Antonio C. Bruno and Jefferson Ferraz Damasceno Fel Araujo
Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro State University, affiliation not provided to SSRN, UFF - Universidade Federal Fluminense - Department of Mechanical Engineering/PGMEC, Universidade de Brasília (UnB), affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, University of São Paulo (USP), affiliation not provided to SSRN and Pontifical Catholic University of Rio de Janeiro
Downloads 88 (753,595)

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Scanning magnetic microscopy, inverse problems, geophysics

2.

Short-Term Paleoceanographic Changes Across the Oceanic Anoxic Event (Oae) 1b in the Aptian-Albian Poggio Le Guaine Core (Umbria Marche Basin, Italy)

Number of pages: 34 Posted: 13 Jun 2025
Paula Harethusa Pereira Costa Vidal, Martino Giorgioni, Jairo Savian, Fabrizio Frontalini, Rodolfo Coccioni, Gabriella Fazio, Elder Yokoyama, Marco Ianniruberto, Nicola Casadei, Luigi Jovane and Ricardo Ivan Ferreira da Trindade
Universidade de Brasília (UnB), Universidade de Brasília (UnB), affiliation not provided to SSRN, University of Urbino, University of Urbino Carlo Bo, Universidade de Brasília (UnB), Universidade de Brasília (UnB), Universidade de Brasília (UnB), University of Urbino Carlo Bo, University of São Paulo (USP) and University of São Paulo (USP)
Downloads 83 (790,029)

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IIsotopic geochemistry, Neodymium isotopes, Elemental geochemistry, Portable XRF, Principal Component Analysis, OAE 1b

3.

Microplastics Contamination on the Beach Sand of Rio De Janeiro City: Concentration, Spatial Distribution, Morphology and Polymer Types

Number of pages: 22 Posted: 06 Mar 2024
Letícia Mariana Lopes da Silva, Daniel Santos Mulholland, Elder Yokoyama, Sebastiao William William da Silva, Ingrid Souza Hoyer, Vanessa Mara Chapla, Lidiane Amorim da Silva, Débora Francisca Morais da Silva and Lucas Samuel Soares Santos
affiliation not provided to SSRN, affiliation not provided to SSRN, Universidade de Brasília (UnB), Universidade de Brasília (UnB), Universidade de Brasilia, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 78 (844,901)

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microplastic, Plastic pollution, Rio de Janeiro, Contamination, polymer, Coast

4.

Utilizing Random Forest for Identifying Mafic and Ultramafic Rocks in the Gameleira Suite of the Paleoproterozoic Archean Basement in the Brasília Belt, Brazil

Number of pages: 37 Posted: 28 Nov 2023
Luiz Fernando Cursino Tabosa, Elder Yokoyama, Thiago Lima Mendes, Pedro Maragno Almo and Guilherme Zakarewicz de Aguiar
Universidade de Brasília (UnB), Universidade de Brasília (UnB), Universidade de Brasília (UnB), Universidade de Brasília (UnB) and Universidade de Brasília (UnB)
Downloads 69 (883,195)

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Aerogeophysics, Brazilian Belt, Machine learning, Random Forest, Mafic-Ultramafic Rocks

5.

A Slab Break-Off Model for Mafic–Ultramafic Igneous Rocks in the South Brasília Belt: Insights Related to Post-Collisional Magmatism

Number of pages: 41 Posted: 27 Mar 2025
Danielly Roberta Carvalho, Iolanda Mria Aguiar, Filipe Altoé Temporim, Rodrigo Prudente Melo, Elder Yokoyama and Jônatas Sales Macedo Carneiro
affiliation not provided to SSRN, affiliation not provided to SSRN, University of São Paulo (USP), affiliation not provided to SSRN, Universidade de Brasília (UnB) and affiliation not provided to SSRN
Downloads 56 (1,000,027)

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Extensional phase, Arenópolis Magmatic Arc, Brasília Belt, Slab break-off model, Post-collisional mafic-ultramafic intrusions.

6.

Magnetic Analysis of the Brains, Kidneys, and Lungs of Mice Exposed to Air Pollution of São Paulo, Brazil

Number of pages: 26 Posted: 25 Oct 2025
Pedro Henrique da Silva Chibane, Antônio Carlos Parra, Talita Rojas Cunha Sanches, Alessandra Tammaro, Jesper Kers, Elder Yokoyama, José Antonio Huamaní Coaquira, Lúcia da Conceição Andrade and Andréa Teixeira Ustra
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Amsterdam, University of Amsterdam, Universidade de Brasília (UnB), Universidade de Brasília (UnB), affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 26 (1,385,945)

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Environmental magnetism, Public health, Particulate matter, Magnetic nanoparticles

7.

CondIono 2: Calculating Ionospheres Hall and Pedersen conductivities

Number of pages: 12 Posted: 23 Sep 2025
Clara Castilho Oliveira and Elder Yokoyama
Universidade de Brasilia and Universidade de Brasília (UnB)
Downloads 26 (1,399,036)

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Ionosphere, Conductivity, Hall conductivity, Pedersen conductivity