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A list of all the posts and pages found on the site. For you robots out there, there is an XML version available for digesting as well.
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Posts
Future Blog Post
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Blog Post number 4
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This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.
Blog Post number 3
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Blog Post number 2
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Blog Post number 1
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accepted
bookchapters
CÂMARA DE NUVENS: UMA PROPOSTA EXPERIMENTAL DIDÁTICA
Published:
This publication is about the chemical coupling of phase oscillators.
Recommended citation: Silva, L. M., Pinto, P. H., Lopes, J. M. F., & Karia, F. T. (2019). CÂMARA DE NUVENS: UMA PROPOSTA EXPERIMENTAL DIDÁTICA. In Contradições e Desafios na Educação Brasileira 2 (1st ed., pp. 202-210). Atena Editora.
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Qualidade do Solo e a Dinâmica Hidrossedimentológica na Mesorregião Norte.
Published:
This publication is about the study of an agricultural mega-parcel in northern Paraná..
Recommended citation: BARBOSA, GRAZIELA M.C. ; MARTINS, B. H. ; COLOZZI FILHO, A. ; BERTAGNOLI, B. G. P. ; OLIVEIRA, J. F. ; LONDERO, A. L. ; ANDRELLO, A. C. ; SCHNEIDER, F. J. A. ; MENONCIN, A. S. ; LOPES, J. M. F. In Manejo e Conservação de Solo e Água (1st ed., pp. 201-254). SENAR.
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portfolio
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publications
Gamma-rays and X-rays spectrometries applied to evaluate soil redistribution
Published in Journal of Environmental Radioactivity, 2024
This study combines gamma-ray and X-ray fluorescence spectrometry with principal component analysis to quantify soil erosion and deposition rates in a Brazilian agricultural plot.
Recommended citation: Lopes, J. M. F., Ribeiro, J. V., Andrello, A. C., & Melquiades, F. L. (2024). Gamma-rays and X-rays spectrometries applied to evaluate soil redistribution. Journal of Environmental Radioactivity, 278, 107479.
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Spectral deconvolution approach for Beryllium-7 detection: Evaluating soil redistribution with NaI(Tl) detectors
Published in Radiation Physics and Chemistry, 2024
This work applies spectral deconvolution to NaI(Tl) gamma spectra to quantify Beryllium-7 in soils, validating it as a lower-cost method for evaluating short-term soil redistribution.
Recommended citation: Lopes, J. M., Melquiades, F. L., Bastos, R. O., de Oliveira, J. F., Barbosa, G. M., & Andrello, A. C. (2024). Spectral deconvolution approach for Beryllium-7 detection: Evaluating soil redistribution with NaI (Tl) detectors. Radiation Physics and Chemistry, 225, 112153.
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XRF and gamma-ray data fusion for predicting key soil fertility attributes
Published in Radiation Physics and Chemistry, 2025
This study demonstrates that fusing X-ray fluorescence and gamma-ray spectrometry data with machine learning enhances the prediction of key soil fertility attributes, offering a more precise and efficient alternative to traditional methods.
Recommended citation: Ribeiro, J. V., Lopes, J. M. F., Andrello, A. C., de Oliveira, J. F., Barbosa, G. M., Bastos, R. O., & Melquiades, F. L. (2025). XRF and gamma-ray data fusion for predicting key soil fertility attributes. Radiation Physics and Chemistry, 234, 112750.
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Analysis of the first rain after a prolonged drought in southern Brazil using TXRF
Published in Radiation Physics and Chemistry, 2025
This study analyzes the chemical composition of the first post-drought rainfall in southern Brazil, revealing high concentrations of crustal and anthropogenic elements linked to wildfires.
Recommended citation: Birelo, L. M., de Franca, A. M., Lopes, J. M. F., Andrello, A. C., & Jussiani, E. I. (2025). Analysis of the first rain after a prolonged drought in southern Brazil using TXRF. Radiation Physics and Chemistry, 113117.
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7Be measurements in agricultural soil using a low resolution NaI(Tl) detector
Published in Radiation Measurements, 2025
This study demonstrates the viability of employing low-resolution NaI(Tl) detectors to detect and quantify 7Be in soil samples by employing the window-technique.
Recommended citation: Borsoi, Bruno Winicius, Bastos, Rodrigo Oliveira, Neto, Angelo Zanona, Rodríguez, Duvan Gil, Lopes, João Marcos Fávaro, Andrello, Avacir Casanova, Muller, Marcelo Marques Lopes, Pott, Cristiano André, Melquiades, Fábio Luiz (2026). 7Be measurements in agricultural soil using a low resolution NaI(Tl) detector. Radiation Measurements, 107591.
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Calibration transfer from HPGe to NaI(Tl) detectors for radionuclides quantification
Published in Journal of Environmental Radioactivity, 2026
This study demonstrates the viability of employing TTFA to convert NaI(Tl) spectral response into HPGe-like to increase accuracy on radionuclides quantification.
Recommended citation: Lopes, João M. F., Melquiades, Fábio L., Bastos, Rodrigo O., Neto, Angelo Z., Andrello, Avacir C. (2026). Calibration transfer from HPGe to NaI(Tl) detectors for radionuclides quantification. Journal of Environmental Radioactivity, 107885.
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Orthogonal Bayesian Calibration of XRF Data for Geological Applications
Published in Chemometrics and Intelligent Laboratory Systems, 2026
This study demonstrates the application of orthogonal Bayesian regression to calibrate XRF data considering CRM uncertainties to increase accuracy in low-concentration measurements.
Recommended citation: Lopes, J. M. F., Gahle, D. S., Migliori, A., Kanaki, K.. Chemometrics and Intelligent Laboratory Systems, 105662.
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Be-7 Measurement in an Urban Area Using a Low-Resolution Gamma Spectrometer
Published in Applied Radiation and Isotopes, 2026
This article describes a study employing a low-resolution NaI(Tl) detector for measuring Be-7 activity concentrations in urban areas.
Recommended citation: Neto, A. Z. N.; Bastos, R. O.; Lopes, J. M. F.; Borsoi, B. W.; Ikeoka, R. A.; Melquiades, F. L.; Neri, V. da S. (2026). Be-7 Measurement in an Urban Area Using a Low-Resolution Gamma Spectrometer. Applied Radiation and Isotopes, 112529.
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Archaeometric study of archaeological pottery from the Ventarrón-Collud Archaeological Complex – Lambayeque, Peru: A multi-technique approach using EDXRF, FTIR, XRD, gamma spectrometry, and principal component analysis
Published in Journal of Environmental Radioactivity, 2026
This study analyzes 191 pottery sherds from the Ventarrón-Collud Archaeological Complex (Lambayeque, Peru), including Huaca Zarpán, Huaca Collud, Arenal, and Huaca Ventarrón using EDXRF, XRD, FTIR, GRS, multivariate analysis, and digital photomicrography.
Recommended citation: Desanti, C. S. A., Appoloni, C. R., Ikeoka, R. A., Suñer, M. M. A., Fagundes, M., Silva, F. A., ... & Samulewski, R. B. (2026). Archaeometric study of archaeological pottery from the Ventarrón-Collud Complex–Lambayeque, Peru: A multi-technique approach using EDXRF, FTIR, XRD, Gamma Spectrometry, and Principal Component Analysis. Radiation Physics and Chemistry, 113926
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teaching
Teaching experience 1
Undergraduate course, University 1, Department, 2014
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Teaching experience 2
Workshop, University 1, Department, 2015
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