Produção Nacional
Revisado por pares
Yasko Kodama, Orlando Rodrigues, Rafael Henrique Lazzari Garcia, Paulo de Souza Santos, Pablo Vásquez,
Main subject of this article was to study room temperature stable radicals in Co-60 gamma irradiated contemporary paper using Electron Paramagnetic Resonance spectrometer (EPR). XRD was used to study the effect of ionizing radiation on the morphology of book paper. SEM images presented regions with cellulose fibers and regions with particles agglomeration on the cellulose fibers. Those agglomerations were rich in calcium, observed by EDS. XRD analysis confirmed presence of calcium carbonate diffraction ...
Tópico(s): Dyeing and Modifying Textile Fibers
2016 - Elsevier BV | Radiation Physics and Chemistry
Produção Nacional
Revisado por pares
Matheus Brum Marques Bianchi Savi, D. Villani, Marco Antônio Bertoncini Andrade, Orlando Rodrigues, M.P.A. Potiens,
3D printing techniques and materials have become widely available in the last couple of decades and remains an important topic of research as the equipments and supplements gets chipper. This study aims to evaluate the attenuation behaviour of several commercially available 3D printing filaments (ABS and PLA-based filaments and other polymers blends) over standard X-ray beams ranging from ~30 keV - to ~50 keV and comparing the experimental results with theoretical data of Cortical Bone, Soft Tissue and ...
Tópico(s): Radiation Dose and Imaging
2021 - Elsevier BV | Radiation Physics and Chemistry
Produção Nacional
Revisado por pares
Ana Laura G. Biancolli, Saja Bsoul-Haj, John C. Douglin, Andrey S. Barbosa, Rogério Ramos de Sousa, Orlando Rodrigues, Alexandre J. C. Lanfredi, Dario R. Dekel, Elisabete I. Santiago,
Anion-exchange membrane fuel cells (AEMFCs) are rapidly gaining visibility in the clean energy research field due to their high power output and potential to significantly reduce materials costs. However, despite the high performances obtained, in-operando stability still presents a major obstacle for this technology. The durability issues are usually attributed to the core component of the AEMFCs - the anion-exchange membrane (AEM). An easy and simple way to produce these AEMs is through radiation ...
Tópico(s): Electrocatalysts for Energy Conversion
2021 - Elsevier BV | Journal of Membrane Science
Priscila Hasse Palharim, Maria Clara D.’Amaro Caira, Carolina de Araújo Gusmão, Bruno Ramos, Gabriel T. dos Santos, Orlando Rodrigues, Antônio Carlos Silva Costa Teixeira,
Heterogeneous photocatalysis is an important and promising alternative for efficient water and wastewater treatment processes. The synthesis of composite materials has attracted attention due to their improved photocatalytic activity and stability. In the present work, composites made of WO 3 -AgCl were synthesized by a simple one-step hydrothermal method. The evaluation of the effects of reaction temperature and synthesis time for this composite is reported for the first time. The materials were ...
Tópico(s): Transition Metal Oxide Nanomaterials
2022 - Elsevier BV | Process Safety and Environmental Protection
Produção Nacional
Revisado por pares
Andrey S. Barbosa, Ana Laura G. Biancolli, Alexandre J. C. Lanfredi, Orlando Rodrigues, Fábio C. Fonseca, Elisabete I. Santiago,
This study presents a systematic analysis of the influence of irradiation conditions (absorbed dose, temperature, and atmosphere) on the physicochemical properties of radiation-induced grafted anion-exchange membranes (AEMs) based on low-density polyethylene (LDPE). Detailed characterization of the polymeric electrolytes shows striking effects of the irradiation conditions on the AEM properties. The LDPE films are irradiated both at room temperature (RT) and low temperature (LT, ∼ −10 °C). At each temperature, ...
Tópico(s): Electrocatalysts for Energy Conversion
2022 - Elsevier BV | Journal of Membrane Science
Produção Nacional
Revisado por pares
D. Villani, Orlando Rodrigues, L.L. Campos,
The aim of this paper is to characterize 3D printed phantoms and printing set-ups with different infill percentages for imaging energy X-ray beams attenuation. 3D printing performance was studied using the fused filament fabrication (FFF) technique with PLA (Polylactic Acid) and ABS (Acrylonitrile Butadiene Styrene) filaments. Phantom plates were printed and, using the Pantak Seifert X-ray system with different beam qualities in the diagnostic range, the attenuation coefficients were obtained experimentally ...
Tópico(s): Radiation Dose and Imaging
2020 - Elsevier BV | Radiation Physics and Chemistry
Produção Nacional
Revisado por pares
Priscila Hasse Palharim, Maria Clara D.’Amaro Caira, Carolina de Araújo Gusmão, Bruno Ramos, Alan Gomes da Câmara, José Geraldo A. Pacheco, Orlando Rodrigues, Antônio Carlos Silva Costa Teixeira,
In this work, different structure-directing agents (citric acid, oxalic acid, urea, polyethylene glycol and Triton X-100) were used to synthesize WO3-AgCl photocatalysts by a simple one-step hydrothermal method. The successful synthesis of the materials was proved through various characterization techniques (XRD, BET, SEM, TEM, EDS, UV–vis DRS, XPS, EPR, Mott-Schottky and photoluminescence). The directing agent strongly influenced the morphology of the catalysts, with the material synthesized with ...
Tópico(s): Gas Sensing Nanomaterials and Sensors
2023 - Elsevier BV | Journal of Photochemistry and Photobiology A Chemistry
Produção Nacional
Revisado por pares
Hiago Antonio Oliveira da Silva, William D. Teixeira, Álefe Vitorino Borges, Amarildo L. da Silva, Kaique S. Alves, Orlando M. Rodrigues, Lucas M. Abreu,
Abstract Early blight, caused by Alternaria solani and A . grandis , severely affects potato crops around the world, and few management options apart from intensive fungicide use are available. In this work, we tested whether biocontrol treatments with different species of the mycoparasitic fungus Clonostachys could reduce early blight severity on the foliage of pot‐grown potatoes of cultivar Ágata, and affect the survival and sporulation of the causal pathogen A . grandis . Twenty isolates from five Clonostachys ...
Tópico(s): Plant-Microbe Interactions and Immunity
2021 - Wiley | Plant Pathology
Produção Nacional
Revisado por pares
S.C. Santos, Orlando Rodrigues, L.L. Campos,
Background: New insights into materials science provide development of smart nano/micro structured materials for advanced applications. Rare earth includes a set of chemical elements (from La to Lu, including Sc and Y) with unique properties, the use of which is evidenced by luminescence applications. Colloidal processing offers great possibilities to obtain smart materials by controlling inter-particle forces, as well as their evolution during ceramic processing. The present article reports a review ...
Tópico(s): Material Properties and Applications
2017 - | Current Smart Materials
Produção Nacional
Revisado por pares
Ladyjane Pereira Fontes Assemany, Orlando Rodrigues, Ezequiel da Silva, M.P.A. Potiens,
Cone-beam computed tomography (CBCT) has been widely used in orthodontics, due to the ability to provide visualization of mineralized tissues in high definition and consequently the identification and delimitation of three-dimensional irregularities. Compared with 2D imaging techniques, the doses used in CBCT exams are higher. Considering that the pediatric and adolescent population routinely receives orthodontic treatments, it is important to note that the cellular development phase of the organs ...
Tópico(s): Medical Imaging Techniques and Applications
2019 - Elsevier BV | Radiation Physics and Chemistry
Produção Nacional
Revisado por pares
Roberta C. Assis, Aparecida Barbosa Mageste, Leandro Rodrigues de Lemos, Ricardo Mathias Orlando, Guilherme Dias Rodrigues,
In this study, the proposal was to use aqueous two-phase systems (ATPS) as a sample preparation technique for the determination of five pharmaceuticals, classified as emerging contaminants (EC): ibuprofen, paracetamol, ciprofloxacin, norfloxacin and amoxicillin. The evaluation of this study was performed through the partition coefficient (K) of each pharmaceutical by varying some parameters of the system, such as the pH value of the medium, the nature of the ATPS-forming electrolyte and polymer, the ...
Tópico(s): Pharmaceutical and Antibiotic Environmental Impacts
2020 - Elsevier BV | Journal of Molecular Liquids
Produção Nacional
Revisado por pares
Roberta C. Assis, Aparecida Barbosa Mageste, Leandro Rodrigues de Lemos, Ricardo Mathias Orlando, Guilherme Dias Rodrigues,
This review approaches how aqueous two-phase systems (ATPS), in their various compositions (e.g., polymer + salt, copolymer + salt, ionic liquid + salt, acetonitrile + salt), can be efficiently used for extraction, preconcentration, and clean-up of analytes in aqueous samples to determine the compounds classified as emerging contaminants (ECs). In the literature, there are some studies using ATPS applied to ECs, like pesticides, pharmaceuticals, illicit drugs, personal care products, alkaloids, and hormones, ...
Tópico(s): Analytical chemistry methods development
2020 - Elsevier BV | Talanta
Bebiana Conde, Filipa Dias Costa, Joana Gomes, António Paulo Lopes, Alexandra Mineiro, Orlando Rodrigues, Cristina Santos, Luísa Semedo, Maria Sucena, Catarina Guimarães,
Alpha 1-antitrypsin deficiency is an inherited autosomal codominant disorder, which predisposes patients to lung and/or liver disease. Even though it is considered rare, it is one of the most frequent genetic disorders worldwide, albeit remaining underdiagnosed. Several organizations and societies, including the Portuguese Society of Pulmonology have been elaborating guidelines and recommendations for the diagnosis and management of alpha 1-antitrypsin deficiency. Nevertheless, some important matters ...
Tópico(s): Transplantation: Methods and Outcomes
2022 - Ordem dos Médicos | Acta Médica Portuguesa
Produção Nacional
Matheus Brum Marques Bianchi Savi, Marco Antônio Bertoncini Andrade, D. Villani, Orlando Rodrigues, M.P.A. Potiens,
The use of 3D printing technologies is growing widely, including the possibility of design phantoms for imaging and dosimetry. For that, high attenuation tissues such as cortical bone, dentin and enamel need to be mimicked to accurately produce 3D printed phantoms, especially for Fused Filament Fabrication (FFF) printing technology. A Radiopaque FFF filament commercially available had been hard to be found; and this study aims to report, step-by-step, the development of a radiopaque FFF filament. ...
Tópico(s): Medical Imaging Techniques and Applications
2022 - | Brazilian Journal of Radiation Sciences
Produção Nacional
Revisado por pares
T. V. Fontes, Kátia Rodrigues Batista de de Oliveira, Izabella L.G. Almeida, Tamira Maria Orlando, Paulo Borges Rodrigues, Diego Vicente da Costa, Priscila Vieira Rosa,
Insects are a valuable source of nutrients for fish, but little is known about their nutritional value for Nile tilapia fingerlings. To evaluate the nutritional value and energy apparent digestibility coefficient (ADC) of five insects for Nile Tilapia male fingerlings, 900 fish were distributed in 18 fiberglass conic tanks, in a completely randomized design, with six dietary treatments (control, Nauphoeta cinerea meal (NCM) (Blattodea), Zophobas morio larvae meal (ZMM) (Coleptera), Gromphadorhina portentosa ...
Tópico(s): Aquaculture Nutrition and Growth
2019 - Multidisciplinary Digital Publishing Institute | Animals
Produção Nacional
Revisado por pares
Sandro Ceratti, Paula Giannini, Ricardo Antenor de Souza e Souza, Orlando Fermozelli Rodrigues,
OBJECTIVE: To determine the number of punctures in fine-needle aspiration biopsies required for a safe cytological analysis of thyroid nodules. MATERIALS AND METHODS: Cross-sectional study with focus on diagnosis. The study population included 94 patients. RESULTS: The mean age of the patients participating in the study was 52 years (standard-deviation = 13.7) and 90.4% of them were women. Considering each puncture as an independent event, the first puncture has showed conclusive results in 78.7% of ...
Tópico(s): Salivary Gland Tumors Diagnosis and Treatment
2012 - Colégio Brasileiro de Radiologia e Diagnóstico por Imagem | Radiologia Brasileira
Carmen LÃocia Tindà . Secco, Russell G. Hamilton,
... No Deserto cresce a Mirabilis". Diz o poeta Orlando Rodrigues. "Embora de veias ao sol". Adita Rodrigues de ...
Tópico(s): Literature, Culture, and Criticism
2007 - Indiana University Press | Research in African Literatures
Produção Nacional
Revisado por pares
Alfred Luciano Fabio Gomes de Castro, Orlando Rodrigues, Paulo Sérgio Scalize,
O crescimento populacional somado à urbanização e ao desenvolvimento econômico são causas incontestáveis do aumento da geração de resíduos. No Brasil a gestão dos resíduos gerados apresenta dificuldades quanto a disposição inadequada, coleta informal e insuficiência do sistema de coleta pública (Linhares et al. 2012).O lodo de esgoto, que é um resíduo, é um produto inevitável do tratamento de águas residuárias, e sua disposição de forma inadequada é um problema existente em várias partes do mundo. ...
Tópico(s): Wastewater Treatment and Reuse
2018 - INSTITUTO FEDERAL GOIANO | Multi-Science Journal
Produção Nacional
Revisado por pares
Carolina de Araújo Gusmão, Laura Teixeira Borges, Priscila Hasse Palharim, Larissa Otubo, Orlando Rodrigues, Douglas Gouvêa, Bruno Ramos, Antônio Carlos Silva Costa Teixeira,
The present work aimed at the development of Pt-TiO2/SiO2 materials applied to the degradation of a pharmaceutical pollutant in a fixed-bed microreactor in continuous mode. First, a wide investigation of the optimal platinum content in TiO2/SiO2 was carried out based on extensive characterization through XRD, DRS, SEM, TEM, and XPS techniques. For the content range studied, no significant changes were observed in the crystallinity of the material, with peaks related to the anatase phase and PtO2 ...
Tópico(s): Advanced oxidation water treatment
2022 - Multidisciplinary Digital Publishing Institute | Water
Produção Nacional
Anderson Luiz Pena da Costa, Orlando Alves Rodrigues Neto, Antônio Carlos Freitas Souza,
The natural history of diseases is a concept in epidemiology that describes at the individual level the interaction of an individual with a disease stimulus, its clinical horizons, and transmission routes, which enable the identification of critical points for the prevention and control of infectious diseases. However, although this concept implies a dynamic process of exposure, contraction of disease, and cure or death, it does not provide an understanding of the dynamics of transmission of infectious ...
Tópico(s): Zoonotic diseases and public health
2019 - UNIVERSIDADE FEDERAL DO AMAPÁ | Estação Científica (UNIFAP)
Joel J. P. C. Rodrigues, Orlando R. E. Pereira, Paulo A. C. S. Neves,
Tópico(s): Molecular Communication and Nanonetworks
2010 - Elsevier BV | Journal of Network and Computer Applications
Produção Nacional
Revisado por pares
Gilbert J. Huber, José Orlando Gomes, Paulo Victor Rodrigues de Carvalho,
The main objective of this work is to propose a method and a tool to support the development of indicators able to inform an organization about the state of its resilience through a cyclical process of identifying its resilience factors, proposing resilience indicators, assessing its organizational resilience followed by assessing and improving the resilience indicators. The research uses concepts from complex adaptive systems and from resilience engineering to establish an initial set of indicators ...
Tópico(s): Supply Chain Resilience and Risk Management
2012 - IOS Press | Work
Produção Nacional
Revisado por pares
Álvaro Henrique Borges, Maura Cristiane Gonçales Orçati Dorilêo, Ricardo Dalla Villa, Alexandre Meireles Borba, Tereza Aparecida Delle Vedove Semenoff, Orlando Aguirre Guedes, Cyntia Rodrigues de Araújo Estrela, Matheus Coêlho Bandéca,
The solubility, pH, electrical conductivity, and radiopacity of AH Plus and MTA FillApex were evaluated. In addition, the surfaces morphologies of the sealers were analyzed by using scanning electron microscopy. For pH test, the samples were immersed in distilled water at different periods of time. The same solution was used for electrical conductivity measurement. The solubility and radiopacity were evaluated according to ANSI/ADA. Statistical analyses were carried out at 5% level of significance. ...
Tópico(s): Dental materials and restorations
2014 - Hindawi Publishing Corporation | The Scientific World JOURNAL
Katia F. Rodrigues, Orlando Petrini, Adrian Leuchtmann,
Thirty strains of Xylaria cubensis isolated from leaves of the Brazilian rainforest palm Euterpe oleracea were compared by means of somatic incompatibility tests and gel electrophoretic analysis in order to gain further insights into their population dynamics. Five enzyme systems were used to assess genetic variability. Isozyme results showed that somatically compatible isolates do not necessarily have the same phenotype. Comparison of isozyme banding patterns revealed a relatively high degree of ...
Tópico(s): Yeasts and Rust Fungi Studies
1995 - Taylor & Francis | Mycologia
M Rodrigues, Orlando Galego, C. Costa, Diogo Jesús, P. Carvalho, Mariana Santiago, Armando Malcata, Luís Inês,
Central nervous system (CNS) vasculitis (CNS) in systemic erythematosus lupus (SLE) is a rare and challenging diagnosis. We report four cases of CNS vasculitis that occurred 5 to 16 years after the diagnosis of SLE. Magnetic resonance imaging (MRI) detected different features suggestive of CNS vasculitis: enhancement and thickening of the vascular wall, vascular stenosis, ischemic brain lesions and intracerebral haemorrhage unlikely to correspond to other mimic aetiologies. Three patients received combination ...
Tópico(s): Atherosclerosis and Cardiovascular Diseases
2017 - SAGE Publishing | Lupus
Produção Nacional
Revisado por pares
Porter P. Lowry, Gregory M. Plunkett, M. Marcela Mora, Asunción Cano, Pedro Fiaschi, David G. Frodin, Roy E. Gereau, Álvaro Idárraga, Jáider Jiménez‐Montoya, J. M. Mendoza, David Neill, Orlando Rivera-Díaz, Carlos Rodrigues‐Vaz,
Tópico(s): Plant and Fungal Species Descriptions
2019 - Springer Science+Business Media | Brittonia
Produção Nacional
José Orlando Avesani Neto, D. Rodrigues,
This paper presents the behavioral results of a large-scale experimental EPS block embankment under different test and load conditions. The experimental embankment was designed and constructed to be similar to a road structure of flexible pavement and 22 kg/m3 EPS geofoam blocks supported by a soft soil subgrade. The experimental embankment was subjected to the Benkelman beam test and a load test using a 50,000 kg six-axle tractor semitrailer, and was instrumented with total pressure cells (TPC) ...
Tópico(s): Geotechnical Engineering and Analysis
2020 - Elsevier BV | Transportation Geotechnics
Produção Nacional
Revisado por pares
Florisvaldo Gama de Souza, Fábio Fernandes de Araújo, Eduardo Adilson Orlando, Fernando Morais Rodrigues, Davy William Hidalgo Chávez, Juliana Azevedo Lima Pallone, Iramaia Angélica Neri-Numa, Alexandra Christine Helena Frankland Sawaya, Gláucia María Pastore,
The buritirana is a little-explored species of the Arecaceae family. The biometric and physicochemical characteristics, nutritional and chemical composition and antioxidant and antibacterial potential of the buritirana fruit fractions were evaluated here for the first time. The fruits presented an oblong shape. The pulp represented 16.58% of the whole-fruit weight (10.07 g). The moisture, ash and soluble fiber contents were similar for the whole fraction without seed (WS) and pulp. Although the total ...
Tópico(s): Antioxidant Activity and Oxidative Stress
2022 - Multidisciplinary Digital Publishing Institute | Foods
Produção Nacional
Revisado por pares
Maria Helena C. Rodrigues, Maristela G. Cunha, Ricardo Luiz Dantas Machado, Orlando C. Ferreira, Maurício M. Rodrigues, Irene S. Soares,
BACKGROUND: Serological tests to detect antibodies specific to Plasmodium vivax could be a valuable tool for epidemiological studies, for screening blood donors in areas where the malaria is not endemic and for diagnosis of infected individuals. Because P. vivax cannot be easily obtained in vitro, ELISA assays using total or semi-purified antigens are rarely used. Based on this limitation, we tested whether recombinant proteins representing the 19 kDa C-terminal region of the merozoite surface protein- ...
Tópico(s): Vector-borne infectious diseases
2003 - BioMed Central | Malaria Journal
Produção Nacional
Diná Herdi Medeiros de Araújo, Elaine Alves de Carvalho, Cláudia Lage Rebello da Motta, Marcos R. S. Borges, José Orlando Gomes, Paulo Victor Rodrigues de Carvalho,
Background: Health crises and health emergencies occur regionally and globally. In this context, online social networks are technical resources widely used to share large amounts of information with increasing reach and speed. This capacity of dissemination of information on epidemics through social media interactions creates the possibility of collaboration between population and health professionals or agencies. This article intends to present, through results obtained in a systematic review, ...
Tópico(s): COVID-19 epidemiological studies
2018 - Springer Nature | Advances in intelligent systems and computing