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Geophysically-Based Structural Framework and Tectonic Evolution of the Brazilian Equatorial Margin

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SSRN 2024年

作者： Lima, Francisco Gabriel Ferreira de de Sá, Emanuel Ferraz Jardim Medeiros, Walter Eugênio de Post-Graduation Program on Geodynamics and Geophysics Federal University of Rio Grande do Norte Natal Brazil Campus Universitário Lagoa Nova Caixa Postal 1.596 RN NatalCEP 59078-970 Brazil Department of Geophysics Federal University of Rio Grande do Norte Natal Brazil Department of Geology Federal University of Rio Grande do Norte Natal Brazil INCT-GP/CNPq CAPES-National Institute of Science and Technology in Petroleum Geophysics Brazil

The Brazilian Equatorial Margin (BEM) encompasses a WNW to NW-trending segment along which a complex set of sedimentary basins were developed from the Neobarremian to the Albian. Recent discoveries of hydrocarbon reserves in the continental margins of Ghana, in Africa, and Guyanas/Suriname, in South America, have heightened interest in studying the Equatorial Atlantic margins. In this context, it is crucial to understand better the mechanisms that led to the formation of these basins, whose exploratory potential is still open. Most studies on the BEM either focus on small areas without comparing results to their African counterparts or involve regional reconstructions that overlook hyperextended crustal sections, thus hindering a more accurate fit. This work aims to define the deep crustal architecture of the BEM and delineate the transition from continental to strictly oceanic crust based on the merging of gravimetric, magnetic, and multichannel 2D seismic reflection data from various sources, types, and resolutions. Our findings have allowed us to categorize the BEM into four domains: proximal (PD), necking zone (NZ), ocean-continent transition (OCT), and oceanic crust (OC). These domains feature a predominance of Aptian to Albian NW-SE normal and oblique-slip faults, as well as NE-SW folds and thrusts, all of which are associated with E-W strike-slip or oblique-slip faults. The nature of the ocean-continent transition zone can vary from gradual to abrupt, depending on its location and the dominant structural style in each margin segment. The oceanward limit of the OCT domain is marked by a continent-ocean boundary (COB) that runs orthogonal to the present-day oceanic fracture zones, unlike what has been reported in other studies. Our defined boundaries ensured a good fit between the continental crusts of the BEM and the African Equatorial Margin (AEM) during the Cenomanian period. © 2024, The Authors. All rights reserved.

关键词： Strike-slip faults

Cellulose Microcrystalline: A Promising Ecofriendly Approach to Control Culex Quinquefasciatus Larvae

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SSRN 2023年

作者： de Souza, Sindoval Silva Gomes, Alex Rodrigues Batista Guimarães, Abraão Tiago Rodrigues, Aline Sueli de Lima de Matos, Letícia Paiva Mendonça, Juliana dos Santos Luz, Thiarlen Marinho da da Silva Matos, Stênio Gonçalves Safiur, M. Rahman Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Mostafizur, Md. Rahman Rocha, Thiago Lopes Towfiqul Islam, Abu Reza Md. Malafaia, Guilherme Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 km Zona Rural Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Department of Environmental Science and Disaster Management Noakhali Science and Technology University Noakhali3814 Bangladesh Saveetha University Tamil Nadu Chennai India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Tirunelveli Tamil Nadu Alwarkurichi627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri BegawanBE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiânia Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

The growing use of synthetic chemical compounds/substances in vector control of mosquitoes, associated with their adverse effects on the environment and non-target organisms, has demanded the development of eco-friendly alternatives. In this context, this study aimed to evaluate the larvicidal action of different cellulose microcrystalline (CMs) concentrations and investigate their toxicity mechanisms in Culex quinquefasciatus fourth instar larvae as a model species. Probit analysis revealed that the median lethal concentrations (LC50) for 24 h and 36 h exposure were 100 and 58.29 mg/L, respectively. We also showed that such concentrations induced a redox imbalance in the larvae, marked by an increase in the production of reactive oxygen species (ROS) and thiobarbituric acid reactive substances (TBARS), as well as a reduction in the activity of superoxide dismutase (SOD) and catalase (CAT). Furthermore, different alterations in the external morphology of the larvae were associated with the ingestion of CMs. On the other hand, exposure of adult zebrafish (Danio rerio) to LC5024h and LC5036h for seven days did not induce any behavioral changes or alterations mutagenic, genotoxic, biochemical, or in the pro- and anti-inflammatory response. Thus, taken together, our study demonstrates for the first time that the use of CMs can constitute a promising strategy in the control of C. quinquefasciatus larvae, combining insecticidal efficiency with an "eco-friendly" approach in the fight against an important mosquito vector of several human diseases. © 2023, The Authors. All rights reserved.

关键词： Cellulose

Effects of Covid-19 Era on a Subtropical River Basin in Bangladesh: Perspectives of Eco-Restoration Strategies and Probable Human Health Risks

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SSRN 2022年

作者： Ul-Haque, Jawad Siddique, Md. Abu Bakar Islam, Md. Saiful Ali, Mir Mohammad Tokatli, Cem Islam, Aznarul Pal, Subodh Chandra Idris, Abubakar M. Malafaia, Guilherme Towfiqul Islam, Abu Reza Md Department of Disaster Management Begum Bekeya University Rangpur5400 Bangladesh Dhanmondi Dhaka1205 Bangladesh Department of Soil Science Patuakhali Science and Technology University Dumki Patuakhali8602 Bangladesh Department of Aquaculture Sher-e-Bangla Agricultural University Dhaka1207 Bangladesh Trakya University Laboratory Technology Department İpsala Edirne Turkey Department of Geography Aliah University 17 Gorachand Road West Bengal Kolkata700 014 India Department of Geography The University of Burdwan West Bengal Bardhaman713104 India Department of Chemistry College of Science King Khalid University Abha62529 Saudi Arabia King Khalid University Abha62529 Saudi Arabia Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil

The COVID-19 era has triggered profound effects on normal human life and the environment, as well as freshwater ecosystems worldwide. Despite the numerous influences, a strict COVID-19 lockdown might lead to improving the surface water quality and thus provide an unprecedented opportunity to restore the degraded freshwater resource. Thus, we intend to investigate the spatiotemporal water quality and preliminary health risks of heavy metals (loids) in the Karatoya River basin (KRB), a tropical urban river in Bangladesh. A total of 70 water samples were collected from 35 stations in KRB in 2019 and 2022 during the dry season. The results showed that the concentrations of Ni, Cu, Zn, Pb, Cd, and Cr were significantly reduced by 89.3–99.7% during the post-lockdown period (p © 2022, The Authors. All rights reserved.

关键词： Heavy metals

Retraction notice to "Microplastic occurrence in commercial crab (Portunus segnis) from the western coast of India and pollution indices: First investigation and evidence" [Sci. Total Environ. 905 (2023) 167500]

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The science of the total environment 2024年 957卷 177729页

作者： Vasantkumar Rabari Md Refat Jahan Rakib Jigneshkumar Trivedi Abubakr M Idris Guilherme Malafaia Animal Taxonomy and Ecology Laboratory Department of Life Sciences Hemchandracharya North Gujarat University Patan 384265 Gujarat India. Department of Fisheries and Marine Science Faculty of Science Noakhali Science and Technology University Noakhali Bangladesh. Department of Chemistry College of Science King Khalid University 61431 Abha Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha 61421 Saudi Arabia. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlˆandia Uberlˆandia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goi'as Goîania GO Brazil.

Retraction notice to "Combined effects of a high-fat diet and polyethylene microplastic exposure induce impaired lipid metabolism and locomotor behavior in larvae and adult zebrafish" [Sci. Total Environ. 902 (2023) 165988]

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The science of the total environment 2024年 957卷 177687页

作者： Seenivasan Boopathi B Haridevamuthu Edrea Mendonca Akash Gandhi P Snega Priya Saad Alkahtani Norah S Al-Johani Selvaraj Arokiyaraj Ajay Guru Jesu Arockiaraj Guilherme Malafaia Toxicology and Pharmacology Laboratory Department of Biotechnology Faculty of Science and Humanities SRM Institute of Science and Technology Kattankulathur 603203 Chengalpattu District Tamil Nadu India. Department of Zoology College of Science King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia. Department of Food Science & Biotechnology Sejong University Seoul 05006 Republic of Korea. Department of Cariology Saveetha Dental College and Hospitals SIMATS Chennai 600 077 Tamil Nadu India. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlˆandia Uberlˆandia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goi'as Goîania GO Brazil.

Inhibitory potential of Eugenia sulcata essential oil and its nanoemulsions against Aspergillus spp.

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Journal of Natural Pesticide Research 2024年 7卷

作者： da Silva, Dianna S. Pinto, Leonardo A. Keller, Luiz Antônio M. Machado, Francisco P. Eiriz, Débora N. Rocha, Leandro Fernandes, Caio P. Laboratory of Natural Products Technology Faculty of Pharmacy Fluminense Federal University Rua Doutor Mário Viana 523 Santa Rosa Niterói CEP 24241-000 Brazil Post-Graduation Program in Vegetal Biotechnology and Bioprocesses Rio de Janeiro Federal University Rio de Janeiro CEP 21941-590 Brazil Department of Animal Science and Agrosustainable Development Faculty of Veterinary Medicine Fluminense Federal University Niterói Rio de Janeiro CEP 24220-000 Brazil

Natural products are in the spotlight of novelty for obtaining ecofriendly agents against pests. In this context, searching for new antifungal alternatives for control of grain microorganism is recommended. In this paper we show a brief description of nanoemulsification as a valuable tool for modification of essential oil properties. Low energy method was used for the preparation of Eugenia sulcata nanoemulsion. This approach was also used for the preparation of this type of colloid with β-caryophyllene, the main component of this essential oil. Especially regarding Aspegillus parasiticus, it was possible to observe increment of bioactivity by nanoemulsification of E. sulcata. This short communication contributes to better knowledge of mechanism in the rationalization of antifungal nanoemulsions based in essential oil and its main constituents, providing relevant insights that can be used for other complex volatile mixtures. © 2024 The Authors

关键词： Antifungal Natural products β-caryophyllene

Carbon Nanofibers in Predicted Environmentally Relevant Concentrations Intensify Monocystis Sp. Infection and Affect the Lumbricus Terrestris Earthworms' Health

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SSRN 2023年

作者： Montalvão, Mateus Flores Gomes, Alex Rodrigues Guimarães, Abraão Tiago Batista Rodrigues, Aline Sueli de Lima de Matos, Letícia Paiva Mendonça, Juliana dos Santos da Luz, Thiarlen Marinho da Silva Matos, Stênio Gonçalves Rahman, M. Safiur Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Rahman, Md. Mostafizur Rocha, Thiago Lopes Islam, Abu Reza Md. Towfiqul Malafaia, Guilherme Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 km Zona Rural GO Urutaí Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Bangladesh Atomic Energy CommissionBangladesh Bangladesh Periyar University India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Tirunelveli Tamil Nadu Alwarkurichi627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri BegawanBE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiania Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

We aimed at the ecotoxicity of CNFs (at 10 and 100 mg/kg) in Lumbricus terrestris earthworms naturally infected with Monocystis sp. After 28-d of exposure, treatments did not affect the survival rate. However, we observed a significant loss of body biomass, and Monocystis sp. infection in seminal vesicles was potentiated by exposure to CNFs. Earthworms exposed to CNFs showed a redox imbalance in the seminal vesicle, muscle, and intestine and an alteration in nitric oxide production in these organs. In muscles, we also noticed a significant reduction in AChE activity in earthworms exposed to CNFs. The histopathological analyses revealed the treatments' significant effect on the structures of the different evaluated tissues. When taken together and after applying IBRv2 and PCA, we noticed that the response of earthworms to CNFs at 100 mg/kg showed a more significant deviation from the unexposed group. Thus, we demonstrate that CNFs increase the parasite load of Monocystis sp. of adult L. terrestris earthworms and induce biochemical changes and histopathological changes, especially at 100 mg/kg. Our results point to the additional impact these nanomaterials can have on the health of earthworms, signaling the need for greater attention to their disposal and ecotoxicological effects on soil organisms. © 2023, The Authors. All rights reserved.

关键词： Muscle

Reinforcement Learning-Based Edge Caching for IoT in Compute-First Networks

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IEEE Transactions on Consumer Electronics 2025年

作者： Asmat, Hamid Din, Ikram Ud Almogren, Ahmad Rodrigues, Joel J. P. C. Department of Information Technology University of Haripur Haripur22620 Pakistan King Saud University College of Computer and Information Sciences Chair of Cyber Security Department of Computer Science Riyadh11633 Saudi Arabia Post-graduation Program in Electrical Engineering Teresina Brazil

6G networks require ultra-low latency and intelligent resource management in IoT environments. Compute-First Networking (CFN), integrating distributed computing and edge caching, addresses backhaul congestion. This paper proposes CaRL, a DRL-based caching framework using TD3 algorithm. CaRL optimizes cache placement at edge nodes by incorporating real-time network state, content popularity, and resource utilization. Simulations show CaRL improves cache hit ratio, reduces latency, and enhances bandwidth efficiency, and ensures secure caching decisions under dynamic network conditions. Unlike existing methods, CaRL adapts to dynamic network conditions by integrating latency, CPU, and memory metrics, demonstrating scalability and adaptability in CFN-driven 6G environments. © 1975-2011 IEEE.

关键词： Edge computing

Carbon Nanofibers in Predicted Environmentally Relevant Concentrations Intensify Monocystis Sp. Infection and Affect the Lumbricus Terrestris Earthworms' Health

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SSRN 2023年

作者： Montalvão, Mateus Flores Gomes, Alex Rodrigues Guimarães, Abraão Tiago Batista de Lima Rodrigues, Aline Sueli de Matos, Letícia Paiva dos Santos Mendonça, Juliana da Luz, Thiarlen Marinho da Silva Matos, Stênio Gonçalves Rahman, M. Safiur Ragavendran, Chinnasamy Senthil-Nathan, Sengottayan Guru, Ajay Rakib, Md. Refat Jahan Mubarak, Nabisab Mujawar Rahman, Md. Mostafizur Rocha, Thiago Lopes Towfiqul Islam, Abu Reza Md. Malafaia, Guilherme Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia MG Uberlândia Brazil Laboratory of Toxicology Applied to the Environment Goiano Federal Institute Urutaí Campus. Rodovia Geraldo Silva Nascimento 25 Km Zona Rural GO Urutaí Brazil Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute GO Urutaí Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás GO Goiânia Brazil Bangladesh Atomic Energy Commission Bangladesh Periyar University India Division of Biopesticides and Environmental Toxicology Sri Paramakalyani Centre for Excellence in Environmental Sciences Manonmaniam Sundaranar University Alwarkurichi Tamil Nadu Tirunelveli627 412 India Department of Cariology Saveetha Dental College and Hospitals SIMATS Tamil Nadu Chennai600 077 India Noakhali Science and Technology University Noakhali Bangladesh Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Jahangirnagar University Dhaka1342 Bangladesh Laboratory of Environmental Biotechnology and Ecotoxicology Institute of Tropical Pathology and Public Health Federal University of Goiás Goiás Goiania Brazil Department of Disaster Management Begum Rokeya University Rangpur5400 Bangladesh

Although the ecotoxicity of carbon-based nanomaterials (CBNs) is known, the potential effect of carbon nanofibers (CNFs) on edaphic organisms has not been evaluated. Thus, we aimed at the ecotoxicity of CNFs (at 10 and 100 mg/kg) in Lumbricus terrestris earthworms naturally infected with Monocystis sp. After 28 days of exposure, treatments did not affect the survival rate. However, we observed a significant loss of body biomass, and Monocystis sp. infection in seminal vesicles was potentiated by exposure to CNFs. Earthworms exposed to CNFs showed a redox imbalance in the seminal vesicle, muscle, and intestine and an alteration in nitric oxide production in these organs. In muscles, we also noticed a significant reduction in AChE activity in earthworms exposed to CNFs. The histopathological analyses revealed the treatments' significant effect on the structures of the different evaluated tissues. Although we did not notice a concentration-response for several of the biomarkers, when taken together and after the application of IBRv2 and principal component analysis (PCA), we noticed that the response of earthworms to CNFs at 100 mg/kg showed a more significant deviation from the unexposed group. This was mainly determined by inhibiting antioxidant activity in the seminal vesicle, biochemical biomarkers assessed in muscle and intestine, and histomorphometric muscle biomarkers from earthworms exposed to CNFs at 100 mg/kg. Thus, we demonstrate that CNFs increase the parasite load of Monocystis sp. of adult L. terrestris earthworms and induce biochemical changes and histopathological changes, especially at 100 mg/kg. Our results point to the additional impact these nanomaterials can have on the health of earthworms, signaling the need for greater attention to their disposal and ecotoxicological effects on soil organisms. © 2023, The Authors. All rights reserved.

关键词： Biomarkers