Search Results - "Antonio Braga"

Direct, Metal‐free C(sp2)−H Chalcogenation of Indoles and Imidazopyridines with Dichalcogenides Catalysed by KIO3 by Rafique, Jamal, Saba, Sumbal, Franco, Marcelo S., Bettanin, Luana, Schneider, Alex R., Silva, Lais T., Braga, Antonio L.

“…Herein, we report a greener protocol for the synthesis of 3‐Se/S‐indoles and imidazo[1,2‐a]pyridines through direct C(sp2)−H bond chalcogenation of…”
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Novel Cost-Sensitive Approach to Improve the Multilayer Perceptron Performance on Imbalanced Data by Castro, C. L., Braga, A. P.

“…Traditional learning algorithms applied to complex and highly imbalanced training sets may not give satisfactory results when distinguishing between examples…”
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Regioselective, Solvent- and Metal-Free Chalcogenation of Imidazo[1,2-a]pyridines by Employing I2/DMSO as the Catalytic Oxidation System by Rafique, Jamal, Saba, Sumbal, Rosário, Alisson R., Braga, Antonio L.

“…Highly efficient molecular‐iodine‐catalyzed chalcogenations (S and Se) of imidazo[1,2‐a]pyridines were achieved by using diorganoyl dichalcogenides under…”
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Multiclass Graph-Based Large Margin Classifiers: Unified Approach for Support Vectors and Neural Networks by Hanriot, Vitor M., Torres, Luiz C. B., Braga, Antonio P.

“…While large margin classifiers are originally an outcome of an optimization framework, support vectors (SVs) can be obtained from geometric approaches. This…”
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Synthesis of Unsymmetrical Diorganyl Chalcogenides under Greener Conditions: Use of an Iodine/DMSO System, Solvent- and Metal-Free Approach by Saba, Sumbal, Rafique, Jamal, Braga, Antonio L.

“…Herein, we report a greener iodine‐catalyzed protocol to access different types of unsymmetrical diorganyl chalcogenides. This new approach works in the…”
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A Solvent- and Metal-Free Synthesis of 3‑Chacogenyl-indoles Employing DMSO/I2 as an Eco-friendly Catalytic Oxidation System by Azeredo, Juliano B, Godoi, Marcelo, Martins, Guilherme M, Silveira, Claudio C, Braga, Antonio L

“…Herein, we describe a solvent- and metal-free method for the synthesis of 3-chalcogenyl-indoles from indoles and diorganyl dichalcogenides using an equivalent…”
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Hierarchically Assembled ZnO Nanocrystallites for High-Efficiency Dye-Sensitized Solar Cells by Memarian, Nafiseh, Concina, Isabella, Braga, Antonio, Rozati, Seyed Mohammad, Vomiero, Alberto, Sberveglieri, Giorgio

“…Spray pyrolysis is effective in the formation of a nanoengineered photoanode. An unprecedented photoconversion efficiency of 7.5 % for ZnO‐based dye‐sensitized…”
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"Green Is the Color": An Update on Ecofriendly Aspects of Organoselenium Chemistry by Azeredo, Juliano B, Penteado, Filipe, Nascimento, Vanessa, Sancineto, Luca, Braga, Antonio L, Lenardao, Eder João, Santi, Claudio

“…Organoselenium compounds have been successfully applied in biological, medicinal and material sciences, as well as a powerful tool for modern organic…”
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Copper-Catalyzed Synthesis of Unsymmetrical Diorganyl Chalcogenides (Te/Se/S) from Boronic Acids under Solvent-Free Conditions by Saba, Sumbal, Botteselle, Giancarlo Vaccari, Godoi, Marcelo, Frizon, Tiago Elias Allievi, Galetto, Fábio Zazyki, Rafique, Jamal, Braga, Antonio L

“…The efficient and mild copper-catalyzed synthesis of unsymmetrical diorganyl chalcogenides under ligand- and solvent-free conditions is described. The…”
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A method for mining combined data from in-hive sensors, weather and apiary inspections to forecast the health status of honey bee colonies by Rafael Braga, Antonio, G. Gomes, Danielo, Rogers, Richard, E. Hassler, Edgar, M. Freitas, Breno, A. Cazier, Joseph

“…•An accurate prediction method forecast the honeybee colony health status.•Honeybees health status from homeostasis, weight, inspections, and weather…”
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Light‐Mediated Seleno‐Functionalization of Organic Molecules: Recent Advances by Rafique, Jamal, Rampon, Daniel S., Azeredo, Juliano B., Coelho, Felipe L., Schneider, Paulo H., Braga, Antonio L.

“…Organoselenium compounds constitute an important class of substances with applications in the biological, medicinal and material sciences as well as in modern…”
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Solvent‐ and Metal‐Free Chalcogenation of Bicyclic Arenes Using I2/DMSO as Non‐Metallic Catalytic System by Silva, Lais T., Azeredo, Juliano B., Saba, Sumbal, Rafique, Jamal, Bortoluzzi, Adailton J., Braga, Antonio L.

“…We have developed a green and efficient protocol for the chalcogenation of bicyclic arenes by using I2/DMSO as catalytic system under solvent‐ and metal‐free…”
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Catalytic Chalcogenylation under Greener Conditions: A Solvent-Free Sulfur- and Seleno-functionalization of Olefins via I2/DMSO Oxidant System by Vieira, André A, Azeredo, Juliano B, Godoi, Marcelo, Santi, Claudio, da Silva Júnior, Eufrânio N, Braga, Antonio L

“…Herein, we report a solvent- and metal-free methodology for the alkoxy-chalcogenylation of styrenes, using molecular iodine as a catalyst, DMSO as a…”
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Distance-based loss function for deep feature space learning of convolutional neural networks by Ribeiro, Eduardo S., Araújo, Lourenço R.G., Chaves, Gabriel T.L., Braga, Antônio P.

“…Convolutional Neural Networks (CNNs) have been on the forefront of neural network research in recent years. Their breakthrough performance in fields such as…”
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Evaluating five different adaptive decomposition methods for EEG signal seizure detection and classification by Carvalho, Vinícius R., Moraes, Márcio F.D., Braga, Antônio P., Mendes, Eduardo M.A.M.

“…•Adaptive signal decomposition methods improve automated seizure detection.•Features from raw EEG can give good predictions but inferior class…”
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Synthesis of Selenium-Quinone Hybrid Compounds with Potential Antitumor Activity via Rh-Catalyzed C-H Bond Activation and Click Reactions by Jardim, Guilherme A M, Lima, Daisy J B, Valença, Wagner O, Cavalcanti, Bruno C, Pessoa, Claudia, Rafique, Jamal, Braga, Antonio L, Jacob, Claus, da Silva Júnior, Eufrânio N, da Cruz, Eduardo H G

“…In continuation of our quest for new redox-modulating catalytic antitumor molecules, selenium-containing quinone-based 1,2,3-triazoles were synthesized using…”
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Electrochemical Oxidative C(sp2)–H Bond Selenylation of Activated Arenes by Meirinho, Anne G., Pereira, Vinícius F., Martins, Guilherme M., Saba, Sumbal, Rafique, Jamal, Braga, Antonio L., Mendes, Samuel R.

“…Herein, we report an electrochemical oxidative C(sp2)–H selenylation of activated arenes. The reaction proceeds in an undivided electrochemical cell at…”
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Recent Advances in Electrochemical Chalcogen (S/Se)‐Functionalization of Organic Molecules by Martins, Guilherme M., Meirinho, Anne G., Ahmed, Nisar, Braga, Antonio L., Mendes, Samuel R.

“…Achieving advances in the development of clean and efficient synthetic routes has become an important aim in research. In recent years, the search for new…”
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Selenium-Derivative Compounds: A Review of New Perspectives in the Treatment of Alzheimer's Disease by Barbosa, Flavio A R, Canto, Rômulo F S, Teixeira, Kerolain F, de Souza, Anacleto S, de Oliveira, Aldo S, Braga, Antonio L

“…Alzheimer's disease (AD) is one of the most prevalent types of dementia, affecting millions of older people worldwide. AD is stimulating efforts to develop…”
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Bartonella spp. in Phlebotominae Sand Flies, Brazil by Lee, Daniel Antônio Braga, Fernandes Shimabukuro, Paloma Helena, Brilhante, Andréia Fernandes, Cadina Arantes, Paulo Vitor, Sanches, Gustavo Seron, Franco, Eliz Oliveira, Machado, Rosangela Zacarias, Maggi, Ricardo G, Breitschwerdt, Edward B, André, Marcos Rogério

“…Bartonella spp. are opportunistic, vectorborne bacteria that can cause disease in both animals and humans. We investigated the molecular occurrence of…”
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