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Edgar A. Márquez

Universidad del Norte

Km5 Via Puerto Colombia

Carrera 58 # 82-84 Apt 6B

Barranquilla

Colombia

SCHOLARLY PAPERS

4

DOWNLOADS

120

TOTAL CITATIONS

0

Scholarly Papers (4)

1.

Reaction Mechanism of the Gas-Phase Pyrolysis of N – Acetylthiourea and N, N’–Diacetylthiourea: A Theoretical Study Based in Density Functional Theory

Number of pages: 12 Posted: 21 Mar 2022
Universidad Nacional Mayor de San Marcos, Universidad Nacional Mayor de San Marcos, Universidad Nacional Mayor de San Marcos, Universidad del Zulia, Universidad del Norte, affiliation not provided to SSRN, Universidad San Francisco de Quito (USFQ), Universidad del Zulia and affiliation not provided to SSRN
Downloads 49 (1,086,013)

Abstract:

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Theoretical calculation, non-covalent interactions, Wiberg bond index, Independent Gradient Model

2.

Spectral Diffusion in a Three-State Quantum System: Studies of Nonlinear Optical Susceptibilities

Number of pages: 46 Posted: 15 Dec 2025
Universidad Nacional Mayor de San Marcos, Universidad del Norte, Universidad Nacional Mayor de San Marcos, Universidad Nacional Mayor de San Marcos, Universidad del Zulia, Universidad San Francisco de Quito (USFQ) and Universidad del Zulia
Downloads 36 (1,249,711)

Abstract:

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Spectral Diffusion, Four-Wave Mixing, Nonlinear Optical Properties

3.

Classification of Motor Imagery EEG Signals Using CNN-Transformer Hybrid Models

Number of pages: 24 Posted: 26 May 2026
affiliation not provided to SSRN, Universidad San Francisco de Quito USFQ, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and Universidad del Norte
Downloads 25 (1,534,404)

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brain-computer interfaces, Electroencephalography, motor imagery, Cross-subject decoding, Convolutional Neural Networks

4.

SigTR-Net: A Volcano Seismic Signal Classifier Network-Based on Transformer Models

Number of pages: 23 Posted: 11 Jun 2026
affiliation not provided to SSRN, Universidad San Francisco de Quito USFQ, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Universidad del Norte, affiliation not provided to SSRN, Universidad del Atlantico and affiliation not provided to SSRN
Downloads 10

Abstract:

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Volcano seismic signal classification Transformer models, Waveform analysisSelf-attention mechanismsExplainable AIVolcano monitoring