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Variability of Air-Sea CO_(2) Fluxes and Dissolved Inorganic Carbon Distribution in the Atlantic Basin:A Coupled Model Analysis

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International Journal of geosciences 2013年第1期4卷 249-258页

作者： eduardo g.g.de farias Paulo Nobre Joao A.Lorenzzetti Roberto A.F.de Almeida Luiz C.I.Junior National Institute for Space Research Center for Weather Forecasts and Climate StudiesCachoeira PaulistaBrazil National Institute for Space Research Remote Sensing DivisionSao Jose dos CamposBrazil

The biogeochemical dynamics of carbon in the ocean is a subject of fundamental interest to environmental studies. In this context, we have implemented a ten year run of the Brazilian Earth System Coupled Ocean-Atmosphere Model (BESM-OA2.3) integrated with TOPAZ biogeochemical model for the Atlantic basin. The modeled ΔpCO2 for the tropical Atlantic shows very clearly a high dominance of positive fluxes, that is, the CO2 fluxes are sea-to-air throughout the tropical region and for both winter and summer periods. In the mid-latitudes regions negatives fluxes (air-to-sea) were observed for both seasons. An exception to this pattern is an extensive negative tongue on the latitude 10N. The occurrence of this negative ΔpCO2 tongue region in the Tropical Atlantic is highly correlated to negative Evaporation-Precipitation values during this season. In the northern hemisphere (NH) summer the negative values of ΔpCO2 in the tropical Atlantic region are concentrated in the adjacent zone of the Amazon river mouth due to the North Equatorial Counter Current intensification. This process favors the formation of a carbon sink in the adjacent region of the Amazon river mouth. Model results show lowest values of dissolved inorganic carbon (DIC) in a surface layer (100 - 150 m). Highest DIC values are observed in deeper layers and concentrated in an equatorial band. The chlorophyll bloom in equatorial zones was well represented by the model. These blooms are the result of equatorial upwelling that brings the high concentration tongues of DIC present in the equatorial band towards the euphotic zone. This is the first published paper about the BESM-OA2.3 integrated with TOPAZ. The presented results suggest that this modeling system is able to reproduce the main regional carbon dynamics features of the mid-latitude/tropical Atlantic.

关键词： Carbon Cycle Atlantic Basin Coupled Model Climatological Analysis

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Peroral endoscopic myotomy vs laparoscopic myotomy and partial fundoplication for esophageal achalasia: A single-center randomized controlled trial

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World Journal of gastroenterology 2022年第33期28卷 4875-4889页

作者： eduardo Turiani Hourneaux de Moura Jose Jukemura Igor Braga Ribeiro galileu Ferreira Ayala farias Aureo Augusto de Almeida delgado Lara Meireles Azeredo Coutinho Diogo Turiani Hourneaux de Moura Rubens Antonio Aissar Sallum Ary Nasi Sergio A Sanchez-Luna Paulo Sakai eduardo guimaraes Hourneaux de Moura departamento de gastroenterologia Faculdade de MedicinaUniversidade de Sao PauloServico de Endoscopia Gastrointestinal do Hospital das Clinicas HCFMUSPSao Paulo 05403-010Brazil Division of Esophageal Surgery Hospital das ClinicasUniversity of Sao Paulo School of MedicineSao Paulo 05403-010Brazil departamento de gastroenterologia Faculdade de MedicinaUniversidade de Sao PauloHospital das ClinicasUniversity of Sao Paulo School of MedicineSao Paulo 05403-010Brazil department of Internal Medicine The University of Alabama at Birmingham Heersink School of MedicineBasil I.Hirschowitz Endoscopic Center of ExcellenceDivision of Gastroenterology and HepatologyBirminghamAL 35233United States

BACKgROUND Achalasia is a rare benign esophageal motor disorder characterized by incomplete relaxation of the lower esophageal sphincter(LES). The treatment of achalasia is not curative, but rather is aimed at reducing LES pressure. In patients who have failed noninvasive therapy, surgery should be considered. Myotomy with partial fundoplication has been considered the first-line treatment for non-advanced achalasia. Recently, peroral endoscopic myotomy(POEM), a technique that employs the principles of submucosal endoscopy to perform the equivalent of a surgical myotomy,has emerged as a promising minimally invasive technique for the management of this *** To compare POEM and laparoscopic myotomy and partial fundoplication(LM-PF) regarding their efficacy and outcomes for the treatment of *** Forty treatment-naive adult patients who had been diagnosed with achalasia based on clinical and manometric criteria(dysphagia score ≥ II and Eckardt score > 3) were randomized to undergo either LM-PF or POEM. The outcome measures were anesthesia time, procedure time, symptom improvement, reflux esophagitis(as determined with the gastroesophageal Reflux Disease Questionnaire), barium column height at 1 and 5 min(on a barium esophagogram), pressure at the LES, the occurrence of adverse events(AEs), length of stay(LOS), and quality of life(QoL).RESULTS There were no statistically significant differences between the LM-PF and POEM groups regarding symptom improvement at 1, 6, and 12 mo of follow-up(P = 0.192, P = 0.242, and P = 0.242, respectively). However, the rates of reflux esophagitis at 1, 6, and 12 mo of follow-up were significantly higher in the POEM group(P = 0.014, P garding the manometry values, the occurrence of AEs, or LOS. Anesthesia time and procedure time were significantly shorter in the POEM group than in the LM-PF group(185.00 ± 56.89 and 95.70 ± 30.47 min v

关键词： Esophageal achalasia gastroesophageal reflux deglutition disorders Heller myotomy Fundoplication Randomized controlled trial

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Small river basin and estuarine sediment fluxes:The magnitude necessary for coastal dispersion and siltation effects on a coral reef

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International Journal of Sediment Research 2019年第6期34卷 591-599页

作者： Paula Sagili?o Isacksson eduardo guilherme gentil de farias Francisco José Dias Roberto Nascimento de farias Anandra Machado Francisco de Assis Esteves Mauricio Mussi Molisani Instituto de Biodiversidade e Sustentabilidade (NUPEM/UFRJ) Universidade Federal do Rio de Janeiro grupo de gestao Ecologia e Tecnologia Marinha (GTMar)Departamento de Engenharia de Pesca a Ciencias Biologicas (DEPB)Universidade do Estado de Santa Catarina (UESC) Laboratorio de Hidrodinamica Costeira Estuarina e de Aguas Interiores (LHiCEAI)Departamento de Oceanografia e Limnologia (DEOLI)Universidade Federal do Maranhao (UFMA) Programa de Pos-graduacao em Ciencias Ambientais e Conservacao-PPgCIAC Instituto de Biodiversidade e Sustentabilidade (NUPEM/UFRJ)

Increasing continental suspended sediment influx to coral reefs is an example of land-sea coupling that requires the identification of sources,magnitude of transport,and controlling *** Brazil,a small coastal basin(Macae River) was identified as a source of suspended sediment to a coral reef on the coast of Cape Armacao dos *** suspended sediment loads were measured at the basin as were fluxes within the estuary and towards the coast during eight tidal *** load and yield from this basin were typical of small coastal basins,showing high to moderate slopes and transitional land ***,the magnitude of the river loads was lower than the sediment transport within the estuary,indicating that the estuary amplifies river fluxes and sustains the transference of suspended sediment alongshore to the coral ***,the estuary displays both suspended particle retention and export capacity and,therefore,fluxes to the coast and the coral reef occur as episodic events.

关键词： Suspended matter Watershed Mass-balance budget Campos Basin

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Colloidal Synthesis of Silver Nanoprisms in Aqueous Medium:Influence of Chemical Compounds in UV/Vis Absorption Spectra

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Advances in Nanoparticles 2013年第3期2卷 217-222页

作者： Josivandro N.Silva Jamil Saade Patricia M.A.farias eduardo Henrique Lago Falcao Research group on Nanostructures and Biological Interfaces(NIB) Federal University of Pernambuco(UFPE)RecifeBrazil graduate Program on Materials Science(PgMTR) Federal University of Pernambuco(UFPE)RecifeBrazil

In this work we explore the influence of the factors that affect the formation of silver nanoprisms (AgNPs) with distinct size and size distribution as well as the most intense absorption peak shift. Box-Behnken design analysis was applied to optimize the production of silver nanoprism via colloidal synthesis. The analysis of the responses was based on the nanoprisms plasmon peak wavelength related to in-plane dipole (tunable band) at λmax. ≥ 420 nm. The obtained results indicate that Silver ion is the main variable for the tuning of the size and the Localized Surface Plasmon Resonance (LSPR) frequency. By using the Box-Behnken design it was possible to synthesize nanoparticles with a predictable size and to establish a rigorous control of the plasmon frequency at the range of 600 up to 800 nm.

关键词： Silver Nanoprisms Localized Surface Plasmon Resonance Box-Behnken design

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Scalp Melanoma Treated with Ipilimumab in Elderly Patient： A Complete Response to Treatment--Case Report

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Journal of Pharmacy and Pharmacology 2017年第1期5卷 1-4页

作者： Juliana Ramos Chaves Filipe Rocha da Silva Lucas Ivanilson guedes Henriques Silva Thiago farias Camara Luis eduardo Wemeck de Carvalho Jonathan Souza Sarraf Oncologica Brasil--Education and Research Belem-PA 66053-000 Brazil Mecicine Faculty Universidade do Estado do Para Belem-PA 66087-670 Brazil Medicine Faculty Centro Universitario do Estado do Para Belem-PA 66613-903 Brazil Medicine Faculty Universidade Federal do Para Belem-PA 66075-110 Brazil

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Classification of Ultrasonic Signs Pre-processed by Fourier Transform through Artificial Neural Network Using the Echo Pulse Technique for the Identification of defects in Welded Joints of Structural Steel

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Journal of Mechanics Engineering and Automation 2015年第5期5卷 286-290页

作者： Renata Torres Melo Sotero Maria Clea S. de Albuquerque Francisco g. de Paula Claudia T. T. farias eduardo F. de Simas Filho Nondestructive Testing Research group Federal Institute of Bahia Salvador 40301-015 BA Brazil Electrical Engineering Program Federal University of Bahia Salvador 40210-630 BA Brazil

It is due to the need to ensure the security and integrity of equipment, that the non-destructive tests have been increasingly used in the industrial sector. Among these, the ultrasonic pulse echo technique is the most used in industry, mainly for its simplicity and efficiency. With one transducer only, it is possible to emit the ultrasonic and receive the echo pulse. The ANNs (artificial neural networks) are artificial intelligence techniques that, when properly trained, align themselves to inspection tests becoming a powerful tool in the detection and fault identification. In this work, the echo pulse technique was used to detect discontinuities in welds, where ANNs were fed from the information obtained by digital signal processing techniques (Fourier transform), to identify and classify three distinct classes of defects. Results showed that with the combination of feature extraction by Fourier transformation and classification with neural networks, it is possible to obtain an automatic defect detection system in welded joints with average efficiency.

关键词：超声波信号脉冲回波法接头缺陷脉冲技术焊接接头分类预处理结构钢

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