Produção Nacional
Revisado por pares
Antônio Carlos Lopes Câmara, Nivaldo de Azevêdo Costa, Franklin Riet‐Correa, José Augusto Bastos Afonso, Antônio Flávio Medeiros Dantas, Carla Lopes de Mendonça, Maria Isabel de Souza,
Descrevem-se três surtos de intoxicação por vagens de Prosopis juliflora no Sertão e Agreste de Pernambuco, na região semi-árida, em animais pastejando áreas invadidas pela planta ou que ingeriram as vagens como alimento concentrado. Em duas fazendas nas que a doença ocorria esporadicamente foram observados casos individuais. Em outra, o surto afetou um rebanho de 1206 bovinos, dos quais adoeceram 112 (9,28%) e morreram 84 (6,96%), enquanto os demais 28 (2,32%) recuperaram-se e ganharam peso após a ...
Tópico(s): Hibiscus Plant Research Studies
2009 - Colégio Brasileiro de Patologia Animal (CBPA) | Pesquisa Veterinária Brasileira
Produção Nacional
Revisado por pares
Marcelo Cancela Lisboa Cohen, Paloma Maria Pinto Camargo, Luiz Carlos Ruiz Pessenda, Flávio Lima Lorente, Adriana V. de Souza, José Augusto Martins Corrêa, José Albertino Bendassolli, Marianne Dietz,
ABSTRACT The high sea‐level stand during the mid‐Holocene is a benchmark in mangrove dynamics along the north‐east/south‐east coast of Brazil and provides a reference point for landward and seaward mangrove migrations corresponding to changes in relative sea level (RSL). However, evidence of the impacts associated with RSL fall on the northern Brazilian coast is scarce. Multi‐proxy data from the highest tidal flats of the Bragança Peninsula in northern Brazil revealed modern herbaceous areas were ...
Tópico(s): Coastal and Marine Dynamics
2021 - Wiley | Journal of Quaternary Science
Produção Nacional
Revisado por pares
Luciana Ansaneli Naves, Lara Benigno Porto, João Willy Corrêa Rosa, Luíz Augusto Casulari, José Wilson Corrêa Rosa,
Geographical information systems (GIS) have emerged as a group of innovative software components useful for projects in epidemiology and planning in Health Care System. This is an original study to investigate environmental and geographical influences on epidemiology of acromegaly in Brazil. We aimed to validate a method to link an acromegaly registry with a GIS mapping program, to describe the spatial distribution of patients, to identify disease clusters and to evaluate if the access to Health ...
Tópico(s): TGF-β signaling in diseases
2013 - Springer Science+Business Media | Pituitary
Produção Nacional
Revisado por pares
José Augusto Correa Martins, Keiller Nogueira, Lucas Prado Osco, Felipe David Georges Gomes, Danielle Elis Garcia Furuya, Wesley Nunes Gonçalves, Diego André Sant’Ana, Ana Paula Marques Ramos, Veraldo Liesenberg, Jefersson A. dos Santos, Paulo Tarso Sanches de Oliveira, José Marcato,
Urban forests are an important part of any city, given that they provide several environmental benefits, such as improving urban drainage, climate regulation, public health, biodiversity, and others. However, tree detection in cities is challenging, given the irregular shape, size, occlusion, and complexity of urban areas. With the advance of environmental technologies, deep learning segmentation mapping methods can map urban forests accurately. We applied a region-based CNN object instance segmentation ...
Tópico(s): Land Use and Ecosystem Services
2021 - Multidisciplinary Digital Publishing Institute | Remote Sensing
Produção Nacional
Revisado por pares
Patrik Olã Bressan, José Marcato, José Augusto Correa Martins, Maximilian Jaderson de Melo, Diogo Nunes Gonçalves, Daniel Matte Freitas, Ana Paula Marques Ramos, Michelle Taís Garcia Furuya, Lucas Prado Osco, Jonathan de Andrade Silva, Zhipeng Luo, Raymundo Cordero, Lingfei Ma, Jonathan Li, Wesley Nunes Gonçalves,
Recently, methods based on Convolutional Neural Networks (CNN) achieved impressive success in semantic segmentation tasks. However, challenges such as the class imbalance and the uncertainty in the pixel-labeling process are not completely addressed. As such, we present a new approach that calculates a weight for each pixel considering its class and uncertainty during the labeling process. The pixel-wise weights are used during training to increase or decrease the importance of the pixels. Experimental ...
Tópico(s): Species Distribution and Climate Change
2022 - Elsevier BV | International Journal of Applied Earth Observation and Geoinformation
Produção Nacional
Revisado por pares
Diogo Nunes Gonçalves, José Marcato, A. C. Carrilho, Plabiany Rodrigo Acosta, Ana Paula Marques Ramos, Felipe David Georges Gomes, Lucas Prado Osco, Maxwell da Rosa Oliveira, José Augusto Correa Martins, Geraldo Alves Damasceno‐Júnior, Márcio Santos Araújo, Jonathan Li, Fábio de Oliveira Roque, Leonardo F. Peres, Wesley Nunes Gonçalves, Renata Libonati,
Pantanal is the largest continuous wetland in the world, but its biodiversity is currently endangered by catastrophic wildfires that occurred in the last three years. The information available for the area only refers to the location and the extent of the burned areas based on medium and low-spatial resolution imagery, ranging from 30 m up to 1 km. However, to improve measurements and assist in environmental actions, robust methods are required to provide a detailed mapping on a higher-spatial scale ...
Tópico(s): Remote Sensing in Agriculture
2022 - Elsevier BV | International Journal of Applied Earth Observation and Geoinformation
Produção Nacional
Revisado por pares
Diego André Sant’Ana, Marcio Carneiro Brito Pache, José Augusto Correa Martins, Wellington Pereira Soares, Sebastião Lucas Neves de Melo, Vanir Garcia, Vanessa Weber, Natália da Silva Heimbach, Rodrigo Gonçalves Mateus, Hemerson Pistori,
This research arose from the need to aggregate computer vision technology and machine learning in sheep weight control and facilitate the weighing process of animals in farms. The experiment was conducted to collect the images of the animals and their weights, and later, the annotations of the images were made, generating a mask image dataset. We selected the attribute extraction algorithms that extracted shape, size, and angles with k-curvature. With these extracted data, we used the stratified ...
Tópico(s): Image Retrieval and Classification Techniques
2021 - Elsevier BV | Machine Learning with Applications
José Augusto Correa Martins, Jaime S. Cardoso, Filipe Soares,
Background and Objective: Glaucoma, an eye condition that leads to permanent blindness, is typically asymptomatic and therefore difficult to be diagnosed in time. However, if diagnosed in time, Glaucoma can effectively be slowed down by using adequate treatment; hence, an early diagnosis is of utmost importance. Nonetheless, the conventional approaches to diagnose Glaucoma adopt expensive and bulky equipment that requires qualified experts, making it difficult, costly and time-consuming to diagnose ...
Tópico(s): Glaucoma and retinal disorders
2020 - Elsevier BV | Computer Methods and Programs in Biomedicine
Produção Nacional
Revisado por pares
Daliana Lobo Torres, Raul Queiroz Feitosa, Patrick Nigri Happ, Laura Elena Cué La Rosa, José Marcato, José Augusto Correa Martins, Patrik Olã Bressan, Wesley Nunes Gonçalves, Veraldo Liesenberg,
This study proposes and evaluates five deep fully convolutional networks (FCNs) for the semantic segmentation of a single tree species: SegNet, U-Net, FC-DenseNet, and two DeepLabv3+ variants. The performance of the FCN designs is evaluated experimentally in terms of classification accuracy and computational load. We also verify the benefits of fully connected conditional random fields (CRFs) as a post-processing step to improve the segmentation maps. The analysis is conducted on a set of images captured ...
Tópico(s): Wildlife-Road Interactions and Conservation
2020 - Multidisciplinary Digital Publishing Institute | Sensors
Produção Nacional
Revisado por pares
José Augusto Correa Martins, Geazy Vilharva Menezes, Wesley Nunes Gonçalves, Diego André Sant’Ana, Lucas Prado Osco, Veraldo Liesenberg, Jonathan Li, Lingfei Ma, Paulo Tarso Sanches de Oliveira, Gilberto Astolfi, Hemerson Pistori, José Marcato,
This paper presents a novel approach combining the Simple Linear Iterative Clustering (SLIC) superpixel algorithm with a Convolutional Neural Network (CNN) over high-resolution imagery to detect trees in a typical urban environment of the Brazilian Cerrado biome. Our analysis approach for better results uses the deep learning classifier ResNet-50, with a variation in the batch size and five traditional shallow learning methods. The results were processed and avaliated using mainly accuracy as a metric, ...
Tópico(s): Advanced Image Fusion Techniques
2021 - Elsevier BV | Ecological Informatics
Produção Nacional
Revisado por pares
Joberto S. B. Martins, Tereza Cristina Melo de Brito Carvalho, Rodrigo Moreira, Cristiano Bonato Both, Adnei Donatti, João Henrique Corrêa, José Augusto Suruagy Monteiro, Sand Luz Corrêa, Antônio Abelém, Moisés R. N. Ribeiro, José Marcos S. Nogueira, Luiz Magalhães, Juliano Araújo Wickboldt, Tiago Ferreto, Ricardo C. Mello, Rafael Pasquini, Marcos Schwarz, Leobino N. Sampaio, Daniel F. Macedo, José Ferreira de Rezende, Kléber V. Cardoso, Flávio de Oliveira Silva,
Network Slicing (NS) is an essential technique extensively used in 5G networks computing strategies, mobile edge computing, mobile cloud computing, and verticals like the Internet of Vehicles and industrial IoT, among others. NS is foreseen as one of the leading enablers for 6G futuristic and highly demanding applications since it allows the optimization and customization of scarce and disputed resources among dynamic, demanding clients with highly distinct application requirements. Various standardization ...
Tópico(s): IoT and Edge/Fog Computing
2023 - Institute of Electrical and Electronics Engineers | IEEE Access
Produção Nacional
Revisado por pares
Màrcia Regina Guimarães Vasques, Alexandre Ribeiro Bello, Cristiane da Cruz Lamas, Juarez Correa, José Augusto Adler Pereira,
There is a high incidence of infections caused by betalactamase-producing Gram-negative microorganisms in Brazil. These organisms are of clinical and epidemiological importance, since their mobile genetic elements facilitate cross-infection. The present study was conducted in sentinel rectal swabs from patients admitted to a cardiac surgery hospital in Rio de Janeiro, from January through December 2007, in a consecutive manner. The aim of the study was to characterize the genotype and phenotype ...
Tópico(s): Pharmaceutical and Antibiotic Environmental Impacts
2011 - Elsevier BV | The Brazilian Journal of Infectious Diseases
Produção Nacional
Revisado por pares
Diego André Sant’Ana, Marcio Carneiro Brito Pache, José Augusto Correa Martins, Gilberto Astolfi, Wellington Pereira Soares, Sebastião Lucas Neves de Melo, Natália da Silva Heimbach, Vanessa Weber, Rodrigo Gonçalves Mateus, Hemerson Pistori,
This paper presents an experiment with four different convolutional neural networks architectures that aim to classify segments of a sheep using a dataset of superpixels. The proposal used an image dataset with 512 images of 32 sheep. In this dataset of images, we applied the Simple Linear Iterative Clustering technique with a K number parameter of 600 to generate the dataset of superpixels that was later processed in the deep neural networks. We selected four architectures for training the models: ...
Tópico(s): Visual Attention and Saliency Detection
2022 - Elsevier BV | Ecological Informatics
S. T. G. da Silva, Júlio César de Souza, Carla Lopes de Mendonça, M. A. Izael, Antônio Flávio Medeiros Dantas, Roseane de Araújo Portela, F. Riet-Correa, José Augusto Bastos Afonso,
A case of nasal cryptococcosis is reported in a two years old male hair sheep in the Brazilian semi-arid. Severe respiratory signs and a mass occupied a large portion of the right nasal cavity were observed. Cryptococcosis was diagnosed by the typical histologic appearance of the fungus.
Tópico(s): Nail Diseases and Treatments
2010 - | Brazilian Journal of Veterinary Pathology
Produção Nacional
Revisado por pares
A. V. S. Xavier, J.C. Silva, Joaquim F. Martins-Filho, Carmelo J. A. Bastos-Filho, Daniel A. R. Chaves, R.C.A. Almeida, Danilo Araújo, José Augusto Correa Martins,
Due to the expansion of telecommunication services, the demand for technologies that improve transmission quality has been growing in recent years. One of these technologies is optical transport networks (OTNs), which works as a layer above the DWDM (Dense Wavelength Division Multiplexing) network to enable the most efficient use of resources. This work proposes an OTN network planning solution over DWDM based on heuristic algorithms. The main objective is to plan the allocation of OTN network interfaces ( ...
Tópico(s): Advanced Photonic Communication Systems
2020 - Elsevier BV | Optical Fiber Technology
Produção Nacional
Revisado por pares
Rose Caldas de Souza Meira, Simone Patrícia Aranha da Paz, José Augusto Martins Corrêa,
The objective of this study was to select between four proposed synthesis conditions, which one would be the most propitious for struvite precipitation from wastewater and, on such product, detail its crystallochemical aspects using the Rietveld refinement method to determine the chemical formula and chemistry analyses by Wavelength Dispersive X-ray Fluorescence (WDXRF) for validation. The struvite synthesis was investigated for pH 10 and 12 and phosphorus concentrations of 100 and 300 mg/L under ...
Tópico(s): Adsorption and biosorption for pollutant removal
2020 - Elsevier BV | Journal of Materials Research and Technology
Produção Nacional
Revisado por pares
Susane Cristini Gomes Ferreira, Aline Maria Meiguins de Lima, José Augusto Martins Corrêa,
Water is one of the natural resources most impacted by the development model adopted in Brazil. This is related to the widespread sense that water is abundant in the country, which makes it difficult to fully engage all levels of government. However, this sense of abundance also obscures the real problems of pollution, demand, availability and water resources conflicts. This study aims to strengthen water management and contribute to the evaluation of the processes of development in the northeast ...
Tópico(s): Water Resources and Sustainability
2020 - Elsevier BV | Journal of Environmental Management
Produção Nacional
Revisado por pares
Valdir Cechinel Filho, Fátima de Campos, Rogério Corrêa, Rosendo Augusto Yunes, Ricardo José Nunes,
POTENTIAL OF CYCLIC IMIDES: A REVIEW.Cyclic imides consists of an important family of organic compounds with therapeutic potential.In this review, emphasis will be given to the chemical and biological aspects of several sub-classes of this family, incluing maleimides, succinimides, glutarimides, naphtalimides, etc.Additionally, will be focused the contribution of our research group in this field.
Tópico(s): Phenothiazines and Benzothiazines Synthesis and Activities
2003 - Brazilian Chemical Society | Química Nova
Produção Nacional
Revisado por pares
Camila Carneiro dos Santos Rodrigues, Lukas Gomes Gadelha Vieira Santos, Ewerton Santos, Flaviana Cardoso Damasceno, José Augusto Martins Corrêa,
The distribution, sources and potential ecological risk of priority polycyclic aromatic hydrocarbons (PAHs) in sediment from the Amazon River Estuary (Macapá and Santana, Amapá, Northern Brazil) were investigated. The total PAHs concentration (∑PAH) ranged from 22.2 to 158.9 ng g-1 dw (mean value 49.4 ng g-1 dw). PAHs levels in the study area were relatively low than those in nearby areas and other coastal zones worldwide, and could be considered as baseline for PAHs in Amazonic sediments. PAHs ratios ...
Tópico(s): Microplastics and Plastic Pollution
2018 - Elsevier BV | Marine Pollution Bulletin
Produção Nacional
Revisado por pares
Liliane Nogueira da Silva, D. Moraes, S. C. A. dos Santos, José Augusto Martins Corrêa,
This study evaluated the use of waste from the copper concentration process and kaolin processing for the combined synthesis of Zeolite A and layered double hydroxide (LDH). The synthesis occurred in two stages: synthesis of LDH by coprecipitation and submersion in a hydrothermal bath and then the addition of metakaolin for the synthesis of Zeolite A. The synthesized ZA-LDH sample was characterized by X-ray diffraction (XRD), scanning electron microscopy coupled with X-ray energy dispersive spectroscopy ( ...
Tópico(s): Zeolite Catalysis and Synthesis
2018 - Elsevier BV | Applied Clay Science
Produção Nacional
Revisado por pares
Henrique Brasil, Patrícia Pereira, José Augusto Martins Corrêa, Luís Adriano Santos do Nascimento, Víctor Marcos Rumjanek, Vitor Almeida, Natasha Coral, Elizabeth Rodrigues,
Tópico(s): Supercapacitor Materials and Fabrication
2017 - Springer Science+Business Media | Catalysis Letters
Produção Nacional
Revisado por pares
Elizabeth Rodrigues, Patrícia Pereira, Tereza S. Martins, F. Vargas, T. Scheller, José Augusto Martins Corrêa, Jordan Del Nero, S. G. C. Moreira, Werner Ertel‐Ingrisch, Cristina P. De Campos, Alexander M. Gigler,
Novel rare earth element hydrotalcite-like compounds (REE HT) also referred as layered double hydroxides were produced by co-precipitation with ultrasound homogenization under low supersaturation condition. Thermal treatment was performed at 500 °C and 650 °C. Samples were characterized by several methods: X-Ray Diffraction (XRD), Fourier Transformed Infrared Spectroscopy (FTIR), Raman Spectroscopy (RS), Scanning Electron Microscopy (SEM) and Electron Microprobe (EMP). The assemblage data obtained, increasing ...
Tópico(s): Microwave Dielectric Ceramics Synthesis
2012 - Elsevier BV | Materials Letters
Produção Nacional
Revisado por pares
Suziane Nascimento Santos, Jean Michel Lafon, José Augusto Martins Corrêa, Marly Babinski, Fabiana Dias, Maria Helena Tirolo Taddei,
GUAMA RIVER AND GUAJARA BAY (BELEM -PARA).Lead analyses in bottom sediments from the hydrographic system of Belem (Para) indicated low contents of this metal for the sediments from the Guama river, with no significant anthropogenic contribution.A concentration of 18.1 ± 1.5 mg kg -1 and 206 Pb/ 207 Pb isotopic signature of 1.196 ± 0.002 are assigned for Pb from natural sources.On the other hand, the significant increase of Pb contents in the sediments from the Guajará bay, together with the decrease of ...
Tópico(s): Heavy metals in environment
2012 - Brazilian Chemical Society | Química Nova
Produção Nacional
Revisado por pares
Darliane de Cassia Silva Bacha, Simôni Santos, Rosivaldo de Alcântara Mendes, Cássia Christina da Silva Rocha, José Augusto Martins Corrêa, João Carlos Ribeiro Cruz, Fernando Araújo Abrunhosa, Pedro Andrés Chira Oliva,
The emergence of cities and the ongoing growth of urban areas have contributed to an overwhelming increase in negative environmental impacts. A major concern is the impact caused by the inadequate disposal of municipal solid waste in open dumps without proper regulation or planning. The negative impacts caused by the inadequate disposal of solid waste include the contamination of groundwater and soils, the proliferation of disease vectors, and odoriferous and visual pollution. One specific problem ...
Tópico(s): Landfill Environmental Impact Studies
2021 - Springer Science+Business Media | Environmental Earth Sciences
Produção Nacional
Revisado por pares
Mário de Araújo Carvalho, José Marcato, José Augusto Correa Martins, Pedro Zamboni, Celso Soares Costa, Henrique Siqueira, Márcio Santos Araújo, Diogo Nunes Gonçalves, Danielle Elis Garcia Furuya, Lucas Prado Osco, Ana Paula Marques Ramos, Jonathan Li, Castro Júnior, Wesley Nunes Gonçalves,
Tree species mapping is an important type of information demanded in different study fields. However, this task can be expensive and time-consuming, making it difficult to monitor extensive areas. Hence, automatic methods are required to optimize tree species mapping. Here, we propose a deep learning-based mobile application tool for tree species classification in high-spatial-resolution RGB images. Several deep learning architectures were evaluated, including mobile networks and traditional models. ...
Tópico(s): Species Distribution and Climate Change
2022 - Elsevier BV | International Journal of Applied Earth Observation and Geoinformation
Produção Nacional
Revisado por pares
Márcia Cristina Branciforti, Maria Clara Silveira Corrêa, Éric Pollet, José Augusto Marcondes Agnelli, P.A.P. Nascente, Luc Avérous,
The influence of nanofiller, plasticizer and hydroxyvalerate (HV) contents on the properties of poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV)/clay nano-biocomposites is studied. Analyses by wide-angle X-ray diffraction and differential scanning calorimetry showed that both the organo-modified montmorillonite clay and acetyl tributyl citrate plasticizer facilitate the crystallization process of PHBV. Despite its nucleating effect, the nanoclay hampers the spherulite growth and leads to a reduction ...
Tópico(s): Polymer crystallization and properties
2013 - Elsevier BV | Polymer Testing
Produção Nacional
Revisado por pares
Márcio Nunes Corrêa, Thomaz Lucia, José Augusto Bastos Afonso, João Carlos Deschamps,
We determined the estrus profile (weaning-to-estrus interval (WEI), estrus duration (ED), and frequency of estrus per detection period) in 184 female swine and estimated the effect of the WEI, ED and frequency of artificial insemination (AI) on farrowing rate (FR) and litter size. Estrus detection was done at 8:30 a.m. and 5:00 p.m. The WEI was categorized as short ( 120 h). The ED was categorized as short ( 72 h). Mean lactation length was 14.6 days, mean WEI was 124.5 h and mean ED was 69 h. In each weaning ...
Tópico(s): Animal Behavior and Welfare Studies
2002 - Elsevier BV | Theriogenology
Produção Nacional
Revisado por pares
Ana Poblacion, Letícia Marín‐Léon, Ana Maria Segall‐Corrêa, Jonas Augusto Cardoso da Silveira, José Augusto de Aguiar Carrazedo Taddei,
Este artigo se propõe a estudar o processo de insegurança alimentar e fome em domicílios brasileiros com crianças menores de cinco anos. É um estudo transversal com representatividade nacional executado com dados da Pesquisa Nacional de Demografia e Saúde da Criança e da Mulher (PNDS-2006) tendo como variável dependente a insegurança alimentar moderada e grave (IAM+G), medida através da Escala Brasileira de Insegurança Alimentar (EBIA). Foram geradas estimativas de prevalência e razão de prevalência ...
Tópico(s): Poverty, Education, and Child Welfare
2014 - Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz | Cadernos de Saúde Pública
Produção Nacional
Revisado por pares
Gabriel Kirsten Menezes, Gilberto Astolfi, José Augusto Correa Martins, Everton Castel�ão Tetila, Adair da Silva Oliveira, Diogo Nunes Gonçalves, José Marcato, Jonathan de Andrade Silva, Jonathan Li, Wesley Nunes Gonçalves, Hemerson Pistori,
This paper presents a semi-supervised learning method based on superpixels and convolutional neural networks (CNNs) to assign and improve the identification of weeds in soybean crops. Despite its promising results, CNNs require massive amounts of labeled training data to learn, so we intend to improve the manual labeling phase with an automated pseudo-labeling process. We propose a method that uses an additional phase of mini-batch processing to fine-tune and assign pseudo labels to the images based ...
Tópico(s): Spectroscopy and Chemometric Analyses
2023 - Elsevier BV | Smart Agricultural Technology
Produção Nacional
Revisado por pares
Juliano Coelho de Oliveira Zakir, Luíz Augusto Casulari, José Wilson Corrêa Rosa, João Willy Corrêa Rosa, Paulo Andrade de Mello, Albino Verçosa de Magalhães, Luciana Ansaneli Naves,
Although some pituitary adenomas may have an aggressive behavior, the vast majority are benign. There are still controversies about predictive factors regarding the biological behavior of these particular tumors. This study evaluated potential markers of invasion and proliferation compared to current classification patterns and epidemiogeographical parameters. The study included 50 patients, operated on for tumors greater than 30 mm, with a mean postoperative follow-up of 15.2 ± 4.8 years. Pituitary ...
Tópico(s): Adrenal and Paraganglionic Tumors
2016 - Hindawi Publishing Corporation | International Journal of Endocrinology