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Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Emerson L. Gasparetto, Cláudia da Costa Leite, Leandro Tavares Lucato, Cristiano Ventorin de Barros, Suely Kazue Nagahashi Marie, Pedro H. Santana, Paulo Henrique Pires de Aguiar, Sérgio Rosemberg,

To present the magnetic resonance (MR) imaging findings of 78 patients with meningiomas diagnosed in a single institution.78 patients with histological proven intracranial meningioma were studied. There were 52 female and 26 male patients (median=56 years). All MR imaging examinations were performed with 1.5-T MR imaging unit with standard protocol. The images were studied by two neuroradiologists, who reached the decisions regarding the findings by consensus.Most of the tumors showed low signal on ...

Tópico(s): Cerebral Venous Sinus Thrombosis

2007 - Thieme Medical Publishers (Germany) | Arquivos de Neuro-Psiquiatria

Artigo Acesso aberto Brasil Produção Nacional

Wanda Maria Junqueira de Aguiar, Sérgio Ozella,

O artigo tem como objetivo instrumentalizar o pesquisador, segundo a abordagem da Psicologia sociohistórica, nos procedimentos de análise de material qualitativo, visando a apreender os sentidos que constituem o conteúdo do discurso dos sujeitos informantes através do que chamamos de núcleos de significação. Na primeira parte, é feita uma retomada de aspectos teórico-metodológicos desenvolvidos a partir, basicamente, de Vigotski, tais como a importância de um método materialista histórico e dialético, ...

Tópico(s): Social Representations and Identity

2006 - Conselho Federal de Psicologia | Psicologia Ciência e Profissão

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Zilma G Nunes, Alfredo S Martins, Ana Lúcia F Altoe, Marília Martins Nishikawa, Marilene O Leite, Paula Fernandes de Aguiar, Sérgio Eduardo Longo Fracalanzza,

In this study it was compared the MAS-100 and the Andersen air samplers' performances and a similar trend in both instruments was observed. It was also evaluated the microbial contamination levels in 3060 samples of offices, hospitals, industries, and shopping centers, in the period of 1998 to 2002, in Rio de Janeiro city. Considering each environment, 94.3 to 99.4% of the samples were the allowed limit in Brazil (750 CFU/m³). The industries' results showed more important similarity among fungi and ...

Tópico(s): Infection Control and Ventilation

2005 - Instituto Oswaldo Cruz, Ministério da Saúde | Memórias do Instituto Oswaldo Cruz

Artigo Acesso aberto Revisado por pares

Guilherme Ramos, A. Pedro Aguiar, Sérgio Pequito,

This paper provides an overview of the research conducted in the context of structural (or structured) systems. These are parametrized models used to assess and design system theoretical properties without considering a specific realization of the parameters (which could be uncertain or unknown). The research in structural systems led to a principled approach to a variety of problems, into what is known as structural systems theory. Hereafter, we perform a systematic overview of the problems and methodologies ...

Tópico(s): Advanced Control Systems Optimization

2022 - Elsevier BV | Automatica

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Felipe Gomes Naveca, Ingra Morales Claro, Marta Giovanetti, Jaqueline Góes de Jesus, Joilson Xavier, Felipe Campos de Melo Iani, Valdinete Alves do Nascimento, Victor Costa de Souza, Paola Paz Silveira, José Lourenço, Mauricio Santillana, Moritz U. G. Kraemer, Josh Quick, Sarah C. Hill, Julien Thézé, Rodrigo Dias de Oliveira Carvalho, Vasco Azevedo, Flavia Cristina da Silva Sales, Márcio Roberto Teixeira Nunes, Poliana da Silva Lemos, Darlan da Silva Cândido, Glauco de Carvalho Pereira, Marluce Aparecida Assunção Oliveira, Cátia Alexandra Ribeiro Meneses, Rodrigo Melo Maito, Claudeth Rocha Santa Brígida Cunha, Daniela Palha de Sousa Campos, Márcia da Costa Castilho, Thalita Caroline da Silva Siqueira, Tiza Matos Terra, Carlos F. Campelo de Albuquerque, Laura N. Cruz, André Luiz de Abreu, Divino Valerio Martins, Daniele Silva de Moraes Vanlume Simoes, Renato Santana Aguiar, Sérgio Luíz Bessa Luz, Nicholas J. Loman, Oliver G. Pybus, Éster Cerdeira Sabino, Osnei Okumoto, Luíz Carlos Júnior Alcântara, Nuno R. Faria,

Background Since its first detection in the Caribbean in late 2013, chikungunya virus (CHIKV) has affected 51 countries in the Americas. The CHIKV epidemic in the Americas was caused by the CHIKV-Asian genotype. In August 2014, local transmission of the CHIKV-Asian genotype was detected in the Brazilian Amazon region. However, a distinct lineage, the CHIKV-East-Central-South-America (ECSA)-genotype, was detected nearly simultaneously in Feira de Santana, Bahia state, northeast Brazil. The genomic ...

Tópico(s): Viral Infections and Vectors

2019 - Public Library of Science | PLoS neglected tropical diseases

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Wanda Maria Junqueira de Aguiar, Sérgio Ozella,

Pretende aprimorar uma proposta de análise dos sentidos presentes no discurso, já publicada em 2006 pelos mesmos autores. Na primeira parte, é destacada a importância do referencial teórico e metodológico, no caso o da Psicologia Sócio-Histórica, e suas implicações para a apreensão dos sentidos. Para isso, discute algumas categorias, como mediação, historicidade, sentido e significado. Na segunda parte, é retomada a proposta já feita dos núcleos de significação como meio de se apreender os sentidos, ...

Tópico(s): Media and Communication Studies

2019 - Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira | Revista Brasileira de Estudos Pedagógicos

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Mathias M. Pires, Paul L. Koch, Richard A. Fariña, Marcus A. M. de Aguiar, Sérgio F. dos Reis, Paulo R. Guimarães,

The end of the Pleistocene was marked by the extinction of almost all large land mammals worldwide except in Africa. Although the debate on Pleistocene extinctions has focused on the roles of climate change and humans, the impact of perturbations depends on properties of ecological communities, such as species composition and the organization of ecological interactions. Here, we combined palaeoecological and ecological data, food-web models and community stability analysis to investigate if differences ...

Tópico(s): Evolutionary Game Theory and Cooperation

2015 - Royal Society | Proceedings of the Royal Society B Biological Sciences

Artigo Brasil Produção Nacional Revisado por pares

Victor Valencia Torres, V.A. Rayol, Mariana Magalhães, Gil Mendes Viana, Lúcia C. S. Aguiar, Sérgio de Paula Machado, H. Orofino, Eliane D’Elia,

The behaviour of 1,3-dibenzylthiourea (DBTU) and 1-benzyl-3-diisopropylthiourea (DPTU) have been investigated as carbon steel corrosion inhibitors in HCl solution by weight loss measurements, potentiodynamic polarization curves, electrochemical impedance and scanning electron microscopy analysis. Quantum chemical calculation was applied to correlate electronic structure parameters of thiourea derivatives with their inhibition performances. DPTU results were slightly superior to those obtained in the ...

Tópico(s): Hydrogen embrittlement and corrosion behaviors in metals

2013 - Elsevier BV | Corrosion Science

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Wanda Maria Junqueira de Aguiar, Sérgio Ozella,

Pretende aprimorar uma proposta de análise dos sentidos presentes no discurso, já publicada em 2006 pelos mesmos autores. Na primeira parte, é destacada a importância do referencial teórico e metodológico, no caso o da Psicologia Sócio-Histórica, e suas implicações para a apreensão dos sentidos. Para isso, discute algumas categorias, como mediação, historicidade, sentido e significado. Na segunda parte, é retomada a proposta já feita dos núcleos de significação como meio de se apreender os sentidos, ...

Tópico(s): Media and Communication Studies

2013 - Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira | Revista Brasileira de Estudos Pedagógicos

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Rodrigo Chaves Ribeiro, Simone de Campos Vieira Abib, Alexandre Santos Aguiar, Sergio Crescenzo Antonio Schettini,

Abstract Background This prospective randomized study evaluated complications related to long‐term totally implantable catheters in oncologic children and adolescents by comparing venopunction performed either in the jugular or subclavian vein. Methods A total of 83 catheters were implanted from January 2004 to April 2006 and followed‐up until March 2008. Patients were randomly allocated to the subclavian or jugular vein group. The endpoint was complications that led to catheter revision or catheter ...

Tópico(s): Vascular anomalies and interventions

2011 - Wiley | Pediatric Blood & Cancer

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Ana Guardiola, Vanessa Koltermann, Paula Musa Aguiar, Sérgio Pilla Grossi, Valéria Fleck, Elisabeth C. Pereira, Lúcia Campos Pellanda,

Congenital anomalies are one of the main causes of morbidity and mortality among infants. The involvement of the central nervous system (CNS) occurs in 21% of cases.To identify incidence of CNS malformations and associated factors in newborns at a Terciary Hospital of Porto Alegre.Case-control study conducted between 2000 and 2005 based on the Latin American Collaborative Study of Congenital Malformations database.Among 26,588 births registered in this period, 3.67% presented with malformations (IC= ...

Tópico(s): Cleft Lip and Palate Research

2009 - Thieme Medical Publishers (Germany) | Arquivos de Neuro-Psiquiatria

Artigo Brasil Produção Nacional Revisado por pares

Felipe de Lara Janz, Giovani Marino Fávero, Milton Sérgio Bohatch, Adrianade Aguiar Debes, Sérgio Paulo Bydlowski,

Abstract Amniotic fluid is a complex mixture composed of water, salts and different cells types derived from embryo exfoliation. Some of these cells present similar characteristics to mesenchymal stem cells as adherent properties, typical surface antigens and differentiation capacity. These cells are called amniotic fluid‐derived mesenchymal stem cells ( AFMSC s) and are easily obtained by amniocentesis, propagated in culture and differentiated in several cell types with specific inductions. In this ...

Tópico(s): Osteoarthritis Treatment and Mechanisms

2012 - Wiley | Fundamental and Clinical Pharmacology

Artigo Brasil Produção Nacional Revisado por pares

Suelen Teixeira Luiz, Filipe Modolo, Izabela Mozzer, Emanuela Carla dos Santos, Seigo Nagashima, Ana Paula Camargo Martins, Marina Luise Viola de Azevedo, Luciana Reis Azevedo‐Alanis, Ana Maria Trindade Grégio, Rafaela Scariot de Moraes, Maria Cássia Ferreira de Aguiar, Sérgio Aparecido Ignácio, Bruno Correia Jham, Lúcia de Noronha, Aline Cristina Batista Rodrigues Johann,

Abstract Objective This study was conducted to correlate and compare the immunoexpression of sex‐determining region Y‐box 2 ( SOX ‐2) in oral leukoplakia ( OL ) lesions with that in normal buccal mucosa (control). Materials and Methods In this observational study, OL with low‐risk ( n = 34) and high‐risk ( n = 33) dysplasia and control samples ( n = 25) were subjected to immunohistochemical analysis for SOX ‐2. In the epithelium, SOX ‐2 positive and negative cells, as well as semiautomatic segmentation of the immunopositive ...

Tópico(s): Salivary Gland Tumors Diagnosis and Treatment

2018 - Wiley | Oral Diseases

Revisão Acesso aberto Brasil Produção Nacional Revisado por pares

Pedrode Camargo Guizelini, Rafael Alves de Aguiar, Benedito Sérgio Denadai, Fabrízio Caputo, Camila Coelho Greco,

Rapid force capacity, identified by rate of rise in contractile force at the onset of contraction, i.e., the rate of force development (RFD), has been considered an important neuromuscular parameter of physical fitness in elderly individuals. Randomized control studies conducted in adults have found that resistance training may elicit different outcomes in terms of RFD and muscle strength. Thus, the main purpose of this study was to review systematically the literature for studies regarding the influence ...

Tópico(s): Muscle activation and electromyography studies

2017 - Elsevier BV | Experimental Gerontology

Artigo Revisado por pares

Teresa Aguiar Quintana, Sergio Moreno Gil, Patricia Picazo Peral,

The present study aims to provide greater insight into the trends affecting traditional travel agencies and propose strategies to improve their competitiveness. This research develops a qualitative study with three complementary steps: (1) focus groups were held with the main travel agency segments (corporate and holidays), to analyze their motivations and perceptions; (2) interviews were conducted with managers and experts to analyze customers' perceptions and emphasize some of the main trends affecting ...

Tópico(s): Customer Service Quality and Loyalty

2016 - Elsevier BV | Tourism Management Perspectives

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Hélio Langoni, Cláudia Del Fava, K. de G. Cabral, Aristeu Vieira da Silva, Sérgio Aguiar Pacheco Chagas,

Foram estudadas aglutininas antileptospíricas em 403 amostras de soro de búfalos, provenientes de sete Municípios do Vale do Ribeira, Estado de São Paulo, coletadas no período de janeiro de 1992 a junho de 1993. Utilizou-se o teste de soroaglutinação microscópica, considerando-se positivas as amostras cujo título fosse igual ou superior a 100. O maior título encontrado foi 1600 para o sorovar bratislava (1 amostra), seguido de 800 para wolffi (4 amostras). Do total, 152 (37,7%) das amostras foram positivas, ...

Tópico(s): Vector-borne infectious diseases

1999 - UNIVERSIDADE FEDERAL DE SANTA MARIA | Ciência Rural

Revisão Acesso aberto Brasil Produção Nacional Revisado por pares

Luiz Henrique Lélis Miranda, André Felipe Pastick de Holanda Oliveira, Davi Mariano de Carvalho, Gustavo Marques Figueredo Souza, João Guilherme Monteiro Magalhães, Joselmo Alberto Cabral Júnior, Pedro Thadeu Mertens Brainer de Queiroz Lima, Renato Melo Aguiar Júnior, Sérgio Pereira Lins Filho, Hugo Moura de Albuquerque Melo,

Abstract Background The Creutzfeldt-Jakob disease (CJD) is a spongiform encephalopathy that manifests as a rapidly progressive dementia syndrome. Currently, CJD has no cure, and many patients die within the first year, but some drugs are being studied as options for managing this condition. Objective To evaluate the effectiveness of pharmacological treatments offered to patients with CJD as a means to increase survival and reduce cognitive deterioration. Methods A systematic review of the literature ...

Tópico(s): Prion Diseases and Protein Misfolding

2022 - Thieme Medical Publishers (Germany) | Arquivos de Neuro-Psiquiatria

Artigo Acesso aberto Brasil Produção Nacional

Francisco Keilo Teixeira, Telton Pedro Anselmo Ramos, Roney Emanuel Costa de Paiva, Marcelo Aguiar Távora, Sergio Maia Queiroz Lima, Carla Ferreira Rezende,

Abstract Mundaú river basin is located at Center-North Ceará State and occupies a total area of 2,227 km2, including Estuário do Rio Mundaú Environmental Protection Area. This study aimed to catalog the fishes of this basin. Collections were performed with active and passive gear in 35 sampling sites, between 2012 and 2014, in several habitats (main channels, streams, floodplains, permanent and temporary pools, ponds, and dams). A total of 2,545 specimens were collected, belonging to 55 species distributed ...

Tópico(s): Fish Ecology and Management Studies

2017 - Fundação de Amparo à Pesquisa do Estado de SP | Biota Neopropica/Biota Neotropica

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Mathias M. Pires, Maurício Cantor, Paulo R. Guimarães, Marcus A. M. de Aguiar, Sérgio F. dos Reis, Patrícia P. Coltri,

Abstract The network structure of biological systems provides information on the underlying processes shaping their organization and dynamics. Here we examined the structure of the network depicting protein interactions within the spliceosome, the macromolecular complex responsible for splicing in eukaryotic cells. We show the interactions of less connected spliceosome proteins are nested subsets of the connections of the highly connected proteins. At the same time, the network has a modular structure ...

Tópico(s): Complex Network Analysis Techniques

2015 - Nature Portfolio | Scientific Reports

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Karina Takata, Emerson L. Gasparetto, Cláudia da Costa Leite, Leandro Tavares Lucato, Umbertina C. Reed, Hamilton Matushita, Paulo Henrique Pires de Aguiar, Sérgio Rosemberg,

To report the magnetic resonance imaging (MRI) findings in 10 patients with subependimal giant cell astrocytoma (SGCA) and tuberous sclerosis (TS).Ten patients were retrospectively studied, presenting TS and histologically proven SGCA. Four patients were male and six female, with mean age 15.7 years. All patients underwent MRI, which was analyzed by two radiologists, final diagnosis was reached by consensus. The following findings were studied: topography, size, signal intensity on T1/T2-weighted images, ...

Tópico(s): Polyomavirus and related diseases

2007 - Thieme Medical Publishers (Germany) | Arquivos de Neuro-Psiquiatria

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Francisco Flávio Costa Filho, Áurea J. Chaves, Lourenço Teixeira Ligabó, Eduardo Moreira dos Santos, Danillo Taiguara da Silva, Marcelo Aguiar Puzzi, Sérgio Braga, Alexandre Abizaid, Amanda Gmr Sousa,

Background: Guidelines recommend that in suspected stable coronary artery disease (CAD), a clinical (non-invasive) evaluation should be performed before coronary angiography.Objective: We assessed the efficacy of patient selection for coronary angiography in suspected stable CAD.Methods: We prospectively selected consecutive patients without known CAD, referred to a high-volume tertiary center.Demographic characteristics, risk factors, symptoms and non-invasive test results were correlated to the ...

Tópico(s): Coronary Interventions and Diagnostics

2015 - Sociedade Brasileira de Cardiologia (SBC) | Arquivos Brasileiros de Cardiologia

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Sabrina Mesquita-Rocha, Patricio Godoy-Martínez, Sarah Santos Gonçalves, Milton Urrutia, Fabianne Carlesse, Adriana Seber, Maria Aparecida Aguiar Silva, Antônio Sérgio Petrilli, Arnaldo Lopes Colombo,

We conducted a prospective study to investigate the presence of microfungal contamination in the water supply system of the Oncology Paediatric Institute, São Paulo-Brazil after the occurrence of one invasive Fusarium solani infection in a patient after Haematopoietic Stem Cell Transplantation (HSCT). During a twelve-month period, we investigated the water supply system of the HSCT unit by monitoring a total of fourteen different collection sites.One litre of water was collected in each location, ...

Tópico(s): Bacterial biofilms and quorum sensing

2013 - BioMed Central | BMC Infectious Diseases

Artigo Brasil Produção Nacional Revisado por pares

Luciana P. Coelho, Magda F. Serra, Ana Lúcia de Aguiar Pires, Renato Sérgio Balão Cordeiro, Patrı́cia Silva, Marcelo Henrique dos Santos, Marco A. Martins,

This study was undertaken to investigate the putative mechanism(s) underlying the antispasmodic effect of 7-epiclusianone, a naturally occurring compound isolated from the plant Garcinia brasiliensis . Guinea pig tracheal rings were mounted in tissue baths filled with Krebs9 solution, and the contractile response to distinct stimuli was measured in the presence or absence of 7-epiclusianone. We also tested the effect of 7-epiclusianone on methacholine-evoked airways obstruction in BALB/c mice using ...

Tópico(s): Olfactory and Sensory Function Studies

2008 - American Society for Pharmacology and Experimental Therapeutics | Journal of Pharmacology and Experimental Therapeutics

Artigo Acesso aberto Brasil Produção Nacional

Jean-Pierre Ybert, Maria Léa Salgado‐Labouriau, Ortrud Monika Barth, Maria Luísa Lorscheitter, Márcia Aguiar de Barros, Sérgio Augusto de Miranda Chaves, Cynthia Fernandes Pinto da Luz, Maira Ribeiro, Rita Scheel, Kátia Ferraz Vicentini,

A metodologia detalhada a seguir foi definida pelos autores durante reuniões organizadas em Belo Horizonte por ocasião do 3f? Congresso da Associação Brasileira de Estudos do Quatemário (ABEQUA) em 1991. Consiste na padronização dos métodos de coleta e dos tratamentos físico-quúnicos a serem aplicados na preparação das amostras destinadas a estudos em Palinologia. É recomendada para estudos palinológicos relacionados com o Quatemário e deverá ser utilizada sempre que for possível, com a finalidade ...

Tópico(s): Science and Science Education

1992 - | Revista do Instituto Geológico

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Luiz Sérgio Aguiar,

Este trabalho realizado, na bacia hidrográfica do ribeirão

Tópico(s): Groundwater and Watershed Analysis

2007 - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) | Ambiente e Agua - An Interdisciplinary Journal of Applied Science

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Camila Finger Viecelli, Débora Cristina Simão dos Santos, Wolfgang Willian Schmidt Aguiar, Sérgio Hofmaister Martins-Costa, Helena von Eye Corleta, José Geraldo Lopes Ramos,

OBJETIVO: observar o impacto da obesidade e de outros fatores de risco sobre a taxa de falha das pacientes submetidas à cirurgia de Burch para tratamento da incontinência urinária. MÉTODOS: estudo de casos de pacientes submetidas à cirurgia de Burch no período de 1992 a 2003. As pacientes foram avaliadas no momento da segunda consulta pós-operatória (66 dias em média) e com um ano de acompanhamento, e classificadas em dois grupos: Continentes e Não Continentes. As variáveis analisadas foram: idade, ...

Tópico(s): Body Contouring and Surgery

2009 - Thieme Medical Publishers (Germany) | Revista Brasileira Ginecologia e Obstetrícia