José Pedro da Silva, Melita Viegas, Mario Castro-Medina, Luciana da Fonseca,
Central MessageTricuspid valve repair using the cone technique after a neonatal Starnes procedure is feasible, allowing right ventricle rehabilitation and restoring a biventricular physiology.See Commentaries on pages 284, 286, and 288. Tricuspid valve repair using the cone technique after a neonatal Starnes procedure is feasible, allowing right ventricle rehabilitation and restoring a biventricular physiology. See Commentaries on pages 284, 286, and 288. Neonates with severe Ebstein's anomaly (EA) ...
Tópico(s): Cardiovascular Issues in Pregnancy
2020 - Elsevier BV | JTCVS Techniques
Produção Nacional
Revisado por pares
Felipe Viegas, Mário S. Alvim, Sérgio Canuto, Thierson Couto Rosa, Marcos André Gonçalves, Leonardo Rocha,
The literature in sentiment analysis has widely assumed that semantic relationships between words cannot be effectively exploited to produce satisfactory sentiment lexicon expansions. This assumption stems from the fact that words considered to be "close" in a semantic space (e.g., word embeddings) may present completely opposite polarities, which might suggest that sentiment information in such spaces is either too faint, or at least not readily exploitable. Our main contribution in this paper is ...
Tópico(s): Text and Document Classification Technologies
2020 - Elsevier BV | Information Systems
Produção Nacional
Revisado por pares
Letícia de Almeida, Karina Ferreira Alves, Claudia Mara Maciel-Rezende, Larissa de Oliveira Passos Jesus, Francieli Ribeiro Pires, Cláudio Viegas, Mario Augusto Izidoro, Wagner Alves de Souza Júdice, Marcelo Henrique dos Santos, Marcos José Marques,
The leishmanicidal potential of benzophenones has been described, some of them highlighting their potential as cysteine protease inhibitors. Therefore, this work described leishmanicidal activity of nine benzophenone derivatives (1a–c;2a–c;3a–c) against intramacrophage amastigote forms of Leishmania(L.) amazonensis (IC50) and the cytotoxic effect on murine peritoneal macrophages (CC50). The derivative 1c exhibited a selectivity index SI (CC50/IC50) of 6.7, besides cytotoxicity lower than Amphotericin ...
Tópico(s): Trypanosoma species research and implications
2015 - Elsevier BV | Biomedicine & Pharmacotherapy
Carina Ladeira, Susana Viegas, Mário Pádua, Manuel C. Gomes, Elisabete Carolino, Manuel C. Gomes, Miguel Brito,
Several antineoplastic drugs have been classified as carcinogens by the International Agency for Research on Cancer (IARC) on the basis of epidemiological findings, animal carcinogenicity data, and outcomes of in vitro genotoxicity studies. 5-Fluorouracil (5-FU), which is easily absorbed through the skin, is the most frequently used antineoplastic agent in Portuguese hospitals and therefore may be used as an indicator of surface contamination. The aims of the present investigation were to (1) examine ...
Tópico(s): Medical Device Sterilization and Disinfection
2014 - Taylor & Francis | Journal of Toxicology and Environmental Health
Produção Nacional
Revisado por pares
Susana Viegas, Mário Pádua, Ana Costa-Veiga, Elisabete Carolino, Mário Gomes,
Despite the classification as known or suspected human carcinogens, by the International Agency for Research on Cancer, the antineoplastic drugs are extensively used in cancer treatment due to their specificity and efficacy. As human carcinogens, these drugs represent a serious threat to the healthcare workers involved in their preparation and administration. This work aims to contribute to better characterize the occupational exposure of healthcare professionals to antineoplastic drugs, by assessing ...
Tópico(s): Medical Device Sterilization and Disinfection
2014 - Springer Science+Business Media | Environmental Monitoring and Assessment
José António Lopes, Maria João Melo, A. Viegas, Mário Raimundo, Inês Câmara, Francisco Antunes, Antônio Gomes da Costa,
Acute kidney injury (AKI) in hospitalized human immunodeficiency virus (HIV)-infected patients in the highly active antiretroviral therapy (HAART) era has not been extensively addressed. The aim of the present study was to analyze the incidence, etiology, risk factors and the impact of AKI on in-hospital mortality in this population.A total of 489 HIV-infected patients hospitalized in the Department of Infectious Diseases of the Hospital de Santa Maria (Lisbon, Portugal) between January 2005 and December ...
Tópico(s): Pneumocystis jirovecii pneumonia detection and treatment
2011 - Oxford University Press | Nephrology Dialysis Transplantation
Carlos Neto de Carvalho, Pedro A. Viegas, Mário Cachão,
Abstract This work describes the occurrence of numerous, nearly intact Mecochirus rapax populations within Thalassinoides suevicus burrows in the Lower Cretaceous Boca do Chapim Formation. This exceptional preservation allows for unquestionable attribution of a specific producer to a biogenic structure. Analysis of sedimentological features combined with functional morphology and ichnological inferences suggests that the unique preservation of the fauna resulted from river flood depositional events ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2007 - Society for Sedimentary Geology | Palaios
Paulo Fernando Viegas Nunes, Mário Antunes, Carina Silva,
The growing digitization of healthcare institutions and its increasing dependence on Internet infrastructure has boosted the concerns related to data privacy and confidentiality. These institutions have been challenged with specific issues, namely the sensitivity of data, the specificity of networked equipment, the heterogeneity of healthcare professionals (nurses, doctors, administrative staff and other) and the IT skills they have. In this paper we present the results obtained with a study made ...
Tópico(s): Cybercrime and Law Enforcement Studies
2021 - Elsevier BV | Procedia Computer Science
Produção Nacional
Revisado por pares
Mariana C. Manzini, Katia R. Perez, Karin A. Riske, José Carlos Bozelli, Talita L. Santos, Marcia A. da Silva, Greice Kelle Viegas Saraiva, Mário J. Politi, Ana Paula Valente, Fábio C. L. Almeida, Hernán Chaimovich, Magali Aparecida Rodrigues, Marcelo P. Bemquerer, Shirley Schreier, Iolanda Midea Cuccovia,
The cecropin-melittin hybrid antimicrobial peptide BP100 (H-KKLFKKILKYL-NH2) is selective for Gram-negative bacteria, negatively charged membranes, and weakly hemolytic. We studied BP100 conformational and functional properties upon interaction with large unilamellar vesicles, LUVs, and giant unilamellar vesicles, GUVs, containing variable proportions of phosphatidylcholine (PC) and negatively charged phosphatidylglycerol (PG). CD and NMR spectra showed that upon binding to PG-containing LUVs BP100 ...
Tópico(s): Biochemical and Structural Characterization
2014 - Elsevier BV | Biochimica et Biophysica Acta (BBA) - Biomembranes
Ana Isabel Miranda, Vera Martins, P. Cascão, Jorge H. Amorim, Joana Valente, Richard Tavares, C. Borrego, Oxana Tchepel, António Jorge Ferreira, Carlos Robalo Cordeiro, D. X. Viegas, Luís Mário Ribeiro, L. P. Pita,
Forest fires represent a serious threat to public security in Europe due to the large burned area. Moreover, smoke pollution due to forest fire events is an important public health issue for the communities directly affected, and particularly for the personnel involved in firefighting operations. Aiming to contribute to the scientific knowledge concerning firefighters exposure to forest fires smoke, data of individual exposure to carbon monoxide, nitrogen dioxide, volatile organic compounds, and ...
Tópico(s): Injury Epidemiology and Prevention
2010 - Elsevier BV | Environment International
Carina Ladeira, Viegas Susana, Mário Pádua, Elisabete Carolino, Manuel C. Gomes, Miguel Brito,
... Abstract The Authors in Frontiers Carina Ladeira Susana Viegas Mário Pádua Elisabete Carolino Manuel C Gomes Miguel Brito Google Carina Ladeira Susana Viegas Mário Pádua Elisabete Carolino Manuel C Gomes Miguel Brito Google Scholar Carina Ladeira Susana Viegas Mário Pádua Elisabete Carolino Manuel C Gomes Miguel Brito PubMed Carina Ladeira Susana Viegas Mário Pádua Elisabete Carolino Manuel C Gomes Miguel Brito ...
Tópico(s): DNA Repair Mechanisms
2015 - Frontiers Media | Frontiers in Genetics
Diogo Oliveira, Leonardo Martins, André Mora, Carlos Viegas Damásio, Mário Caetano, José Fonseca, Rita A. Ribeiro,
Remote sensing is based on the extraction of data, acquired by satellites or aircrafts, through multispectral images, that allow their remote analysis and classification. Analysing those images with data fusion techniques is a promising approach for identification and classification of forest types. Fusion techniques can aggregate various sources of heterogeneous information to generate value-added maps, facilitating forest-type classification. This work applies a data fusion algorithm, denoted ...
Tópico(s): Remote-Sensing Image Classification
2021 - Taylor & Francis | International Journal of Remote Sensing
Hugo Águas, Rui J. C. Silva, Mário Viegas, L. Pereira, Elvira Fortunato, Rodrigo Martins,
Abstract To evaluate the evolution of a dark film formation on silver surface objects, several coupons were catalogued and place inside a museum, located in an urban area. The changes on these samples were measured by spectroscopic ellipsometry, in periods of months. This technique allows the reduction of the coupons exposure time, in several months, due to its high sensitivity to surface modifications, with acceptable results for the evaluation of its degradation. The thicknesses of the degradation ...
Tópico(s): Building materials and conservation
2008 - Wiley | Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics
Produção Nacional
Revisado por pares
Dayane S. Alvares, Ingrid B. S. Martins, Taisa Giordano Viegas, Mário Sérgio Palma, Alexandre Suman de Araújo, Sidney J. de Carvalho, João Ruggiero Neto,
Anionic lipid membrane electrostatic potential and solution pH can influence cationic peptide adsorption to these bilayers, especially those containing simultaneously acid and basic residues. Here, we investigate the effects of the pH solution on MP1 (IDWKKLLDAAKQIL-NH2) adsorption to anionic (7POPC:3POPG) lipid vesicles in comparison to its analog H-MP1, with histidines substituting lysines. We used the association of adsorption isotherms and constant pH molecular dynamic simulations (CpHMD) to explore ...
Tópico(s): Antimicrobial Peptides and Activities
2021 - Multidisciplinary Digital Publishing Institute | Membranes
Mário Viegas, L.M. Abrantes, J. Lecoeur,
Tópico(s): Corrosion Behavior and Inhibition
1990 - Springer Science+Business Media | Journal of Materials Science Materials in Medicine
D. X. Viegas, Darko Stipaničev, Luís Mário Ribeiro, L. P. Pita, Carlos G. Rossa,
The biggest fire fighting accident in the history of Croatia happened on August 30, 2007.The routine fire fighting operation ended with 12 dead and 1 badly injured fire-fighter.That was the biggest human loss in the history of fire fighting in Croatia.In order to understand the Kornati accident a research team was formed and independent scientific investigation performed.The accident was analyzed from meteorological, vegetation, thermodynamics and aerodynamic points of view, and several simulation ...
Tópico(s): Nuclear Issues and Defense
2008 - WIT Press | WIT transactions on ecology and the environment
Carina Ladeira, Susana Viegas, Mário Pádua, Elisabete Carolino, Manuel C. Gomes, Miguel Brito,
Abstract Antineoplastic drugs are hazardous chemical agents used mostly in the treatment of patients with cancer, however health professionals that handle and administer these drugs can become exposed and develop DNA damage. Comet assay is a standard method for assessing DNA damage in human biomonitoring and, combined with formamidopyrimidine DNA glycosylase (FPG) enzyme, it specifically detects DNA oxidative damage. The aim of this study was to investigate genotoxic effects in workers occupationally ...
Tópico(s): Chemical Safety and Risk Management
2015 - AIMS Press | AIMS Genetics
Produção Nacional
Revisado por pares
Célia M. Viégas, Carlos M. Araújo, Mário A. R. Dantas, Miguel J. Froimtchuk, Jose A.F. Oliveira, Edson Marchiori, Luís Souhami,
Tópico(s): Bladder and Urothelial Cancer Treatments
2004 - Elsevier BV | International Journal of Radiation Oncology*Biology*Physics
Paulo Pinto, Álvaro Silva, D. X. Viegas, Miguel Almeida, Jorge Raposo, Luís Mário Ribeiro,
The influence of a mesoscale convective system (MCS) in the evolution of two wildfires that started during the afternoon of 17 June 2017 in Pedrógão Grande, Central Portugal is discussed and analysed using weather radar data, weather stations, video images and fire spread analysis. As the MCS approached the region, its convectively driven flows started to influence the fires. The overturning flows were formed by two main limbs: one organised as front-to-rear deep layer inflows that propagated over ...
Tópico(s): Wind and Air Flow Studies
2022 - Multidisciplinary Digital Publishing Institute | Atmosphere
Jorge S. S. Júnior, João Paulo, Jérôme Mendes, Daniela Alves, Luís Mário Ribeiro, Carlos Viegas,
Effective wildfire management begins with fire prevention and the assessment of the local fire danger. Typical approaches to fire danger classification rely heavily on manual analysis for specific regions based on expert knowledge. In this paper, a novel approach is proposed for the automatic calibration of fire danger classes based on the Canadian Forest Fire Weather Index System (CFFWIS) applied for specific regions. The proposed automatic calibration method is based on clustering algorithms, namely ...
Tópico(s): Fire Detection and Safety Systems
2022 - Elsevier BV | Expert Systems with Applications
Scott D. Rhodes, J. Alonzo, Lilli Mann, Mario Downs, Mônica Viégas Andrade, Chelsey R. Wilks, Florence M. Simán, Omar Martínez, Charles Abraham, Guillermo R. Villatoro, Laura H. Bachmann,
Guatemalan gay and bisexual men, men who have sex with men (MSM), and transgender persons carry disproportionate burden of HIV and other sexually transmitted infections compared with other Guatemalan subgroups. However, little is known about the determinants of sexual health to inform health promotion and disease prevention interventions among these sexual minorities. We sought to explore sexual health and HIV risk among Guatemalan sexual minorities, using a community-based participatory research ...
Tópico(s): Sex work and related issues
2014 - Oxford University Press | Health Promotion International
Susana Viegas, de Ana Cebola Oliveira, Elisabete Carolino, Mário Pádua,
Healthcare workers who prepare or administer cytotoxic agents run the risk of exposure, and the risks for health are real even at doses lower than those applied in cancer patients, because, in theory, no dose is safe. The most common and problematic route of exposure is through the skin, especially as work surfaces can remain contaminated even after cleaning. This pilot study aimed to demonstrate the importance of having an effective surface decontamination protocol by determining surface contamination ...
Tópico(s): Medical Device Sterilization and Disinfection
2018 - De Gruyter Open | Archives of Industrial Hygiene and Toxicology
Melita Viegas, Carlos E. Díaz-Castrillón, Mario Castro-Medina, Luciana da Fonseca, Victor O. Morell,
BackgroundContradictory data exist regarding timing of stage 2 palliation (S2P). Prolonged interstage hospitalizations and home surveillance programs have contributed to a more rapid progression to S2P. Our goal is to describe the S2P population and explore the relationships of clinical outcomes and S2P timing at our institution over the last 14 years.MethodsS2P procedures from 2004 to 2018 at a single institution were included in a retrospective analysis. The analysis was stratified by S2P timing ...
Tópico(s): Mechanical Circulatory Support Devices
2020 - Elsevier BV | The Annals of Thoracic Surgery
Produção Nacional
Revisado por pares
Flávia Cipriano Castro, Mário Jorge Barreto Viegas Castro, Antônio Carlos Vieira Cabral, Geraldo Brasileiro Filho, Ricardo Wagner Almeida Vítor, Ana Maria Arruda Lana, Gláucia Manzan Queiroz de Andrade,
PCR no líquido amniótico, a inoculação em camundongo e a histologia da placenta, mostrando os seguintes resultados: para a PCR, uma sensibilidade de 66,7% e especificidade de 87,1%; os respectivos valores para a inoculação em camundongo foram 50 e 100% e para a histologia da placenta foram 80 e 66,7%.
Tópico(s): Cytomegalovirus and herpesvirus research
2001 - Thieme Medical Publishers (Germany) | Revista Brasileira Ginecologia e Obstetrícia
Produção Nacional
Revisado por pares
George Rodrigues da Silva, Ismael de Jesus Matos Viégas, Mário Lopes da Silva Júnior, Marcos André Piedade Gama, Ricardo Shigueru Okumura, D. A. C. Frazão, Gilson Sérgio Bastos de Matos, João Cardoso de Souza Júnior, Eduardo do Valle Lima, Jessivaldo Rodrigues Galvão,
The management practices of soil fertility, such as use of lime on mahogany (Swietenia macrophylla King.) nutrition contribute to the crop yield especially in acidic soils.The main aim of this study was to evaluate the application of lime in early growth and nutrient uptake in mahogany seedlings.The treatments were limestone rates (0, 1.9, 3.2, and 4.6 t ha -1 ) necessary to increase the base saturation of substrate (currently 12.4%) for 20, 40, 60 and 80%, respectively, with five replications arranged ...
Tópico(s): Plant Micronutrient Interactions and Effects
2017 - Southern Cross Publishing | Australian Journal of Crop Science
Ana Patrícia Fernandes, Diogo Lopes, Sandra Sorte, A. Monteiro, Carla Gama, Johnny Reis, Isilda Menezes, Tobias Osswald, C. Borrego, Miguel Almeida, Luís Mário Ribeiro, D. X. Viegas, Ana Isabel Miranda,
In the last decades, numerous large forest fires have been recorded in Portugal. On 15 and 16 October 2017, seven extreme wildfires events (EWEs) took place in the central region of Portugal. Aiming to contribute to the assessment of the smoke impact of these EWEs, this study estimates their atmospheric emissions using a bottom-up approach with high spatial and temporal resolution. To this end, fire data were used, such as ignition location and time, propagation, burned area, and fuel load and emission ...
Tópico(s): Atmospheric and Environmental Gas Dynamics
2022 - CSIRO Publishing | International Journal of Wildland Fire
Tomiwa Sunday Adebayo, Manuel Pacheco Coelho, Dilber Çağlar, Husam Rjoub, Mário Nuno Mata, Paulo Viegas de Carvalho, João Xavier Rita, Ibrahim Adeshola,
The present research assesses the influence of globalization and technological innovation on CO2 emissions in South Korea as well as taking into account the role of renewable energy consumption and energy consumption utilizing datasets between 1980 and 2018. The autoregressive distributed lag (ARDL) bounds testing method is utilized to assess long-run cointegration. The outcome of the ARDL bounds test confirmed cointegration among the series. Furthermore, the ARDL reveals that economic growth, energy ...
Tópico(s): Environmental Impact and Sustainability
2021 - Multidisciplinary Digital Publishing Institute | Energies
A.M.G. Lopes, Luís Mário Ribeiro, D. X. Viegas, Jorge Raposo,
The incident wind velocity in a forest fire is one of the main factors affecting fire spread. Although buoyancy due to the fire heat release modifies the wind field, the standard procedure for fire simulation takes the undisturbed wind field, computed in the absence of the fire thermal effects. The present work addresses this problem, by using a method to take into account the mutual interaction (two-way coupling) between fire and wind. This study is based on the FireStation system, a software package ...
Tópico(s): Fire dynamics and safety research
2019 - Elsevier BV | Journal of Wind Engineering and Industrial Aerodynamics
Fantina Tedim, Vittorio Leone, Malik Amraoui, Christophe Bouillon, Michael R. Coughlan, Giuseppe Mariano Delogu, Paulo M. Fernandes, Cármen Ferreira, Sarah McCaffrey, Tara Renae McGee, Joana Parente, Douglas Paton, Mário Pereira, Luís Mário Ribeiro, D. X. Viegas, Gavriil Xanthopoulos,
Every year worldwide some extraordinary wildfires occur, overwhelming suppression capabilities, causing substantial damages, and often resulting in fatalities. Given their increasing frequency, there is a debate about how to address these wildfires with significant social impacts, but there is no agreement upon terminology to describe them. The concept of extreme wildfire event (EWE) has emerged to bring some coherence on this kind of events. It is increasingly used, often as a synonym of other terms ...
Tópico(s): Fire dynamics and safety research
2018 - Multidisciplinary Digital Publishing Institute | Fire
David Riaño, Emilio Chuvieco, Susan L. Ustin, Javier Salas, José Ramón Rodríguez Pérez, Luís Mário Ribeiro, D. X. Viegas, José M. Moreno, Helena Maria Fernandez,
A fuel-type map of a predominantly shrub-land area in central Portugal was generated for a fire research experimental site, by combining airborne light detection and ranging (LiDAR), and simultaneous color infrared ortho imaging. Since the vegetation canopy and the ground are too close together to be easily discerned by LiDAR pulses, standard methods of processing LiDAR data did not provide an accurate estimate of shrub height. It was demonstrated that the standard process to generate the digital ...
Tópico(s): Remote Sensing in Agriculture
2007 - CSIRO Publishing | International Journal of Wildland Fire