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Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Ronaldo Araújo Souza, Yara Teresinha Corrêa Silva‐Sousa, José Antônio Poli de Figueiredo, João da Costa Pinto Dantas, Suely Colombo, Jesus Djalma Pécora,

Since instrumentation of the apical foramen has been suggested for cleaning and disinfection of the cemental canal, selection of the file size and position of the apical foramen have challenging steps. This study analyzed the influence of apical foramen lateral opening and file size can exert on cemental canal instrumentation. Thirty-four human maxillary central incisors were divided in two groups: Group 1 (n=17), without flaring, and Group 2 (n=17), with flaring with LA Axxess burs. K-files of increasing ...

Tópico(s): Drilling and Well Engineering

2012 - Fundação Odontológica de Ribeirão Preto | Brazilian Dental Journal

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Rodrigo Zacca, Rui Azevedo, Pedro Figueiredo, João Paulo Vilas‐Boas, Flávio Antônio de Souza Castro, David B. Pyne, Ricardo J. Fernandes,

The assessment of oxygen uptake (VO₂) kinetics is a valuable non-invasive way to evaluate cardiorespiratory and metabolic response to exercise. The aim of the study was to develop, describe and evaluate an online VO₂ fitting tool (VO₂FITTING) for dynamically editing, processing, filtering and modelling VO₂ responses to exercise. VO₂FITTING was developed in Shiny, a web application framework for R language. Validation VO₂ datasets with both noisy and non-noisy data were developed and applied to widely- ...

Tópico(s): Muscle activation and electromyography studies

2019 - Multidisciplinary Digital Publishing Institute | Sports

Artigo Acesso aberto

Antônio Felipe Paulino de Figueiredo Wouk, JOÃO MARIA DINIZ, Silvana Maris Círio, HUDSON DOS SANTOS, ELISA LETÍCIA BALTAZAR, Alexandra Acco,

Com o objetivo de comparar a ação de diferentes agentes terapêuticos promotores da cicatrização da pele, foi realizado um estudo clínico, histopatológico e morfométrico em suíno. Utilizou-se seis animais mestiços provenientes de uma mesma leitegada com 90 dias de idade. Foram produzidas seis lesões experimentais quadrangulares do mesmo tamanho na região dorso-lombar e uma delas permaneceu como controle. Em cada animal, foram testados cinco tratamentos: Biofill humano, Biofill veterinário, Tegaderm, ...

Tópico(s): Corneal Surgery and Treatments

1998 - UNIVERSIDADE FEDERAL DO PARANÁ | Archives of Veterinary Science

Artigo Revisado por pares

Ricardo Peterson Silveira, Flávio Antônio de Souza Castro, Pedro Figueiredo, João Paulo Vilas‐Boas, Paola Zamparo,

To analyze the effects of swimming pace on the relative contribution of leg kick to swimming speed and to compare arm-stroke efficiency (ηF) assessed when swimming with the arms only (SAO) and while swimming front crawl (FCS) using individual and fixed adjustments to arm-stroke and leg-kick contribution to forward speed.Twenty-nine master swimmers (21 men, 8 women) performed SAO and FCS at 6 self-selected speeds from very slow to maximal. The average swimming speed (v), stroke frequency (SF), and stroke ...

Tópico(s): Stroke Rehabilitation and Recovery

2016 - Human Kinetics | International Journal of Sports Physiology and Performance

Revisão Brasil Produção Nacional Revisado por pares

Alessandra Cesar Trindade, José Antônio Poli de Figueiredo, Liviu Steier, João Batista Blessmann Weber,

Recently, several in vitro and in vivo studies demonstrated promising results about the use of photodynamic therapy during root canal system disinfection. However, there is no consensus on a standard protocol for its incorporation during root canal treatment. The purpose of this study was to summarize the results of research on photodynamic therapy in endodontics published in peer-reviewed journals. A review of pertinent literature was conducted using the PubMed database, and data obtained were ...

Tópico(s): Photodynamic Therapy Research Studies

2015 - Mary Ann Liebert, Inc. | Photomedicine and Laser Surgery

Artigo Brasil Produção Nacional Revisado por pares

O. Treu-Filho, José Cirı́aco Pinheiro, Edson B. Costa, João Elias Vidueira Ferreira, Antônio Florêncio de Figueiredo, Rogério Toshiaki Kondo, Vicente Alexandre De Lucca Neto, Rodrigo Alves de Souza, A.O. Legendre, Antônio E. Mauro,

The compound [Pd(dmba)(NCO)(imz)] (dmba = N,N-dimethylbenzilamine; NCO = cyanate; imz = imidazole) was studied through experimental and theoretical methods. The complex was synthesized and characterized by IR and NMR spectroscopy. To an appropriate representation of the molecular environment, Gaussian basis sets for the constituent atoms of the compound were built and, after adequate supplementation with polarization and diffuse functions, they were used to study the molecule. Calculations of electronic ...

Tópico(s): Synthesis and Properties of Aromatic Compounds

2006 - Elsevier BV | Journal of Molecular Structure

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Maurício Krause, Lino Pinto de Oliveira, Elza Maria Santos da Silveira, Damiana R. Vianna, Juliane S. Rossato, Bibiana Sgorla de Almeida, Mariana Figueiredo Rodrigues, Augustus Joli Martins Fernandes, Joao Antonio Bonatto Costa, Rui Curi, Paulo Ivo Homem de Bittencourt,

Abstract Striated muscle activity is always accompanied by oxidative stress (OxStress): the more intense muscle work and/or its duration, the more a redox imbalance may be attained. In spite of cardiac muscle functioning continuously, it is well known that the heart does not suffer from OxStress‐induced damage over a broad physiological range. Although the expression of antioxidant enzymes may be of importance in defending heart muscle against OxStress, a series of combined antioxidant therapeutic ...

Tópico(s): ATP Synthase and ATPases Research

2006 - Wiley | Cell Biochemistry and Function

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

João Felício Rodrigues-Neto, Maria Fernanda Santos Figueiredo, Anderson Antônio de Faria, Marise Fagundes,

OBJETIVO: Verificar a prevalência do transtorno mental comum (TMC) na população da cidade de Montes Claros, MG, e a existência de associação entre os fatores socioeconômicos e a utilização de práticas integrativas e complementares/medicina complementar e alternativa (PIC/MCA) com o TMC. MÉTODOS: Estudo transversal. População alvo: moradores de Montes Claros. A amostragem foi probabilística, com 3.090 pessoas. Utilizou-se formulário semi-estruturado e o self reporting questionnaire (SRQ-20) para identificação ...

Tópico(s): Phytochemistry Medicinal Plant Applications

2008 - UNIVERSIDADE FEDERAL DO RIO DE JANEIRO | Jornal Brasileiro de Psiquiatria

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

João Felício Rodrigues-Neto, Maria Fernanda Santos Figueiredo, Anderson Antônio de Faria,

CONTEXT AND OBJECTIVE: Homeopathy is a therapeutic system that uses small doses of substances to stimulate autoregulatory and self-healing processes. The aim of this study was to investigate the prevalence of the use of homeopathy by the population of Montes Claros, Brazil, and the socioeconomic profile of users. DESIGN AND SETTING: Probabilistic cross-sectional study with cluster sampling, in the city of Montes Claros, Minas Gerais. METHODS: This study was conducted by applying semi-structured ...

Tópico(s): Public Health in Brazil

2009 - Medical Association of São Paulo | Sao Paulo Medical Journal

Artigo Brasil Produção Nacional Revisado por pares

João Elias Vidueira Ferreira, Ricardo Morais de Miranda, Antônio Florêncio de Figueiredo, Jardel Pinto Barbosa, Edykarlos M. Brasil,

Box-and-whisker plots or simply boxplots are powerful graphical representations that give an overview of a data set. In this work five different examples illustrate the applications of boxplots in food chemistry. The examples involve relative sweetness of sugars and sugar alcohols with respect to sucrose, the potassium content of fruits and vegetables, amino acid content of egg white and yolk, chemical composition of freshwater and saltwater fish, and change in fatty acid composition of soybean ...

Tópico(s): Sensory Analysis and Statistical Methods

2016 - American Chemical Society | Journal of Chemical Education

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

João Felício Rodrigues Neto, Anderson Antônio de Faria, Maria Fernanda Santos Figueiredo,

To determine prevalence of utilization and social and economic profile of those using complementary and alternative medicine in the medium sized Brazilian city of Montes Claros, MG.A transversal descriptive study was conducted. The sample of 3090 people was probabilistic, by clusters using the household as the sample unit for interview of both genders, older than 18 years. Data were collected by semi-structured questionnaires.Utilization of complementary and alternative medicine was of 8.9% when ...

Tópico(s): Health, Nursing, Elderly Care

2009 - Brazilian Medical Association | Revista da Associação Médica Brasileira

Artigo Brasil Produção Nacional Revisado por pares

Sachie T. Kuwano, José Orlando Bordin, Akemi Kuroda Chiba, Adriana Barretto de Mello, Maria Stella Figueiredo, João Paulo Botelho Vieira‐Filho, Antonio Fabron, J Kerbauy,

BACKGROUND: The FcγRIIA gene is expressed in two polymorphic forms, R131 and H131, which differ by the replacement of histidine by arginine at position 131. The FCGR3B ( FcγRIIIB ) gene exists in two allelic isoforms, known as FCGR3B1 ( FcγRIIIB‐NA1 ) and FCGR3B2 ( FcγRIIIB‐NA2 ), which differ in nucleotides 141, 147, 227, 277, and 349. An additional polymorphism is the SH antigen that is associated with the FCGR3B3 ( FcγRIIIB‐SH ) allele. STUDY DESIGN AND METHODS: By use of a PCR with allele‐specific primers, the ...

Tópico(s): Pneumonia and Respiratory Infections

2000 - Wiley | Transfusion

Artigo Revisado por pares

Ronaldo Araújo Souza, José Antônio Poli de Figueiredo, Suely Colombo, João da Costa Pinto Dantas, Maurício Lago, Jesus Djalma Pé,

Aim: This article analyzed the location of the apical foramen and its relationship with foraminal file size in maxillary central incisors. Methods: Eighty four human maxillary central incisors were used in this study. K-files of progressively increasing diameters were inserted into the root canal until it got snugly fit and the tip was visible at the apical foramen. The files were removed and teeth were crosssectioned 10 mm from the root apex. The files were then reinserted, fixed with a cyanoacrylate- ...

Tópico(s): Dental Trauma and Treatments

2011 - | Dental Press Endodontics

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Giovany M. Figueiredo, João R. Santos Júnior, António Suárez,

Abstract In this work we show some multiplicity results for the anisotropic equation where Ω ⊂ℝ N is a bounded smooth domain, 1 < p 1 ≤ p 2 ≤ . . . ≤ p N and λ is a positive parameter. Using genus theory, we study the subcritical case g λ (u) = λ|u| q−2 u with q ∈ (1, p N ) and the critical case g λ (u) = λ|u| q−2 u +|u| p*−2 u with q ∈ (1, p 1 ) and p* = N| p̅/(N−p̅), with p̅ the harmonic mean of the p i ’s.

Tópico(s): Stability and Controllability of Differential Equations

2015 - De Gruyter | Advanced Nonlinear Studies

Artigo Acesso aberto Revisado por pares

Agustinho Valente de Figueirêdo, Elias Tadeu Fialho, Dorinha Miriam Silber Schmidt Vitti, João Batista Lopes, José Cleto da Silva Filho, Antônio Soares Teixeira, José Augusto de Freitas Lima,

RESUMO - Esta pesquisa foi realizada para determinar as perdas endógenas fecais de fósforo e a ação da fitase sobre a disponibilidade biológica do P nas rações e no farelo integral de arroz (FAI), para suínos em crescimento, por meio da técnica de diluição isotópica. Os leitões foram distribuídos em delineamento inteiramente casualizado, com quatro tratamentos e três repetições. Os tratamentos consistiram de duas dietas sem FAI (com ou sem 1250 FTU [Unidade de Atividade de Fitase]/kg ração), com 0,34% ...

Tópico(s): Livestock and Poultry Management

2000 - Sociedade Brasileira de Zootecnia | Revista Brasileira de Zootecnia

Artigo Brasil Produção Nacional

Maria da Glória Gomes Cristino, Carla Carolina Ferreira Meneses, Malucia M. Soeiro, João Elias Vidueira Ferreira, Antônio Florêncio de Figueiredo, Jardel Pinto Barbosa, Ruth Catarine O. de Almeida, José Cirı́aco Pinheiro, Andréia de Lourdes Ribeiro Pinheiro,

Nineteen 10-substitued deoxoartemisinin derivatives and artemisinin with activity against D-6 strains of malarial falciparum designated as Sierra Leone are studied. We use molecular electrostatic potential maps in an attempt to identify key structural features of the artemisinins that are necessary for their activities and molecular docking to investigate the interaction with the molecular receptor (heme). Chemometric modeling: Principal Component Analysis (PCA), Hierarchical Cluster Analysis (HCA), ...

Tópico(s): thermodynamics and calorimetric analyses

2012 - World Scientific | Journal of Theoretical and Computational Chemistry

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Lane Coelho Viana, Camila Mendes de Lima, Marcus Augusto‐Oliveira, Rubilene Pinheiro Borges, Tiago Cardoso, Izabela Almeida, Daniel Guerreiro Diniz, João Bento‐Torres, Antônio Pereira, Manuella Batista‐de‐Oliveira, Allan Lopes, Rosângela Figueiredo Mendes-da-Silva, Ricardo Abadie‐Guedes, Ângela Amâncio dos Santos, Denise Sandrelly Cavalcanti de Lima, Pedro Fernando da Costa Vasconcelos, Colm Cunningham, Rubem Carlos Araújo Guedes, Cristovam Wanderley Picanço Diniz,

It has been demonstrated that rat litter size affects the immune cell response, but it is not known whether the long-term effects aggravate age-related memory impairments or microglial-associated changes. To that end, we raised sedentary Wistar rats that were first suckled in small or large litters (6 or 12 pups/dam, respectively), then separated into groups of 2–3 rats from the 21st post-natal day to study end. At 4 months (young adult) or 23 months (aged), all individual rats were submitted to spatial ...

Tópico(s): Stress Responses and Cortisol

2013 - Elsevier BV | Neuroscience

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Jardel Pinto Barbosa, João Elias Vidueira Ferreira, António J. Figueiredo, Ruth Catarine O. de Almeida, Osmarina Silva, José Carlos Tavares Carvalho, Cristino da, José Ciríaco-Pinheiro, José Vieira, Raymony Tayllon Alves Serra,

In this work, a molecular modeling and multivariate study involving artemisinin and 28 derivatives with activity against human hepatocellular carcinoma HepG2 is reported. The studied calculations of the compounds were performed at the B3LYP/6-31G level. MEP maps were used in an attempt to identify key structural features of artemisinin and its derivatives that are necessary for their activities, and to investigate their interaction with the transferrin. The chemometrics methods PCA, HCA, KNN, SIMCA ...

Tópico(s): Statistical Methods and Applications

2011 - Serbian Chemical Society | Journal of the Serbian Chemical Society

Artigo Brasil Produção Nacional Revisado por pares

Patrícia Schossler, Isabel C. P. Fortes, João Cura D’Ars de Figueiredo, Fernando Carazza, Luiz Antônio Cruz Souza,

This paper describes the identification of acrylic and vinyl resins applied in the art and conservation fields by pyrolysis gas chromatography-mass spectrometry. Initially, commercial samples of painting varnishes, binding media, coatings, adhesives, and consolidants were analyzed for method development and preparation of a reference database for the individual polymer materials. The analysis conditions (pyrolytic and chromatographic) were optimized in order to obtain the best resolution for a fragment ...

Tópico(s): Bacterial Identification and Susceptibility Testing

2013 - Taylor & Francis | Analytical Letters

Artigo Acesso aberto Revisado por pares

Aitor García‐Tomillo, Tomás de Figueiredo, Arlindo Almeida, João B. Rodrigues, Jorge Dafonte Dafonte, Antônio Paz González, João Angelo Silva Nunes, Zulimar Hernández,

Abstract Soil Compaction results from compressive forces applied to compressible soil by machinery wheels, combined with tillage operations. Draft animal‐pulled equipment may also cause soil compaction, but a huge gap exists on experimental data to adequately assess their impacts and, actually, animal traction is an option seen with increasing potential to contribute to sustainable agriculture, especially in mountain areas. This study was conducted to assess the impacts on soil compaction of tillage ...

Tópico(s): Soil Carbon and Nitrogen Dynamics

2017 - De Gruyter Open | Open Agriculture

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Flávio Henrique Souza de Araújo, Débora Rojas de Figueiredo, Sarah Alves Auharek, João Renato Pesarini, Alisson Meza, Roberto da Silva Gomes, Antônio Carlos Duenhas Monreal, Andréia Conceição Milan Brochado Antoniolli‐Silva, Dênis Pires de Lima, Cândida Aparecida Leite Kassuya, Adilson Beatriz, Rodrigo Juliano Oliveira,

Chemotherapy is one of the major approaches for the treatment of cancer. Therefore, the development of new chemotherapy drugs is an important aspect of medicinal chemistry. Chemotherapeutic agents include isocoumarins, which are privileged structures with potential antitumoral activity. Herein, a new 3-substituted isocoumarin was synthesized from 2-iodo-3,5-dimethoxy-benzoic acid and oct-1-yne in a cross-coupling Sonogashira reaction followed by a copper iodide-catalyzed intramolecular cyclization ...

Tópico(s): Synthesis of Indole Derivatives

2017 - Brazilian Society of Genetics | Genetics and Molecular Biology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

João P. Duarte, Manuel J. Coelho‐e‐Silva, Daniela C. Costa, Diogo V. Martinho, Leonardo Gomes de Oliveira Luz, Ricardo Rebelo‐Gonçalves, João Valente‐dos‐Santos, António J. Figueiredo, André Seabra, Robert M. Malina,

The objective of the study was to examine the effects of the relative age effect (RAE) and predicted maturity status on body size and repeated sprint ability (RSA: 7 x 34.2 m / 25 s interval) in youth soccer. The sample was composed of 197 male players aged 13-14 years. Body mass, stature, and sitting height were measured, RSA was assessed in the field, and age at peak height velocity (APHV) was predicted. Factorial ANOVA tested the independent and combined effects of RAE given by birth quarters (BQs) ...

Tópico(s): Sport Psychology and Performance

2019 - De Gruyter Open | Journal of Human Kinetics

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Nathalia Matos de Santana, Francisco Winter dos Santos Figueiredo, Diego Monteiro de Melo Lucena, Fernando Mayo Soares, Fernando Adami, Luciana de Carvalho Pádua Cardoso, João Antônio Corrêa,

To analyze the epidemiological stroke data of Brazil according to the Global Burden of Disease (GBD) study in 2016 and secondary data from the GBD database.The highest percentage of deaths due to stroke in general occurred in individuals aged 70 years or over (60.2%; 95% confidence interval [CI] 59.9-60.5%) followed by that in men (52.9%; 95% CI 52.6-53.2%). Ischemic stroke was the most common type, accounting for 61.8% (95% CI 61.5-62.1%) of deaths due to stroke in 2016. Most of the epidemiological ...

Tópico(s): Nutritional Studies and Diet

2018 - BioMed Central | BMC Research Notes

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Roberta de Oliveira Sousa Wanderley, Rossana Maria Feitosa de Figueirêdo, Alexandre José de Melo Queiroz, Francislaine Suélia dos Santos, Yaroslávia Ferreira Paiva, João Paulo de Lima Ferreira, Antônio Gilson Barbosa de Lima, Josivanda Palmeira Gomes, Caciana Cavalcanti Costa, Wilton Pereira da Silva, Dyego da Costa Santos, Patrício Borges Maracajá,

Pomegranate is a fruit desirable for its nutritional and medicinal properties which has a great industrial potential that is yet under-explored. Notable for its integral use, the peels are used in medicinal infusions and the seeds consumed without restrictions. In this sense, the objective of this work is to determine the drying kinetics of pomegranate peels and seeds in a hot air circulation oven, at temperatures of 50, 60, and 70 °C, adjust mathematical models to experimental data, determine the ...

Tópico(s): Microbial Inactivation Methods

2023 - Multidisciplinary Digital Publishing Institute | Foods

Artigo Brasil Produção Nacional Revisado por pares

Lissara Aparecida de Souza Freitas, André Coutinho Vieira, João Antônio Felipe Risolia Mendonça, Eduardo Costa Figueiredo,

This paper describes the synthesis and characterization of a new molecularly imprinted solid-phase microextraction fiber able to renew its selective binding sites because of the gradual thermal decomposition of the polymeric network. The injector of the chromatograph operates at 300 °C, and during the desorption step of the analytes (in a short period), the polymeric network is degraded from the surface to the core in volatile compounds that do not interfere with the analysis. The renewable MIP fiber ...

Tópico(s): Mass Spectrometry Techniques and Applications

2013 - Royal Society of Chemistry | The Analyst

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Octávio Marques Pontes‐Neto, Gisele Sampaio Silva, Marley Ribeiro Feitosa, Nathalie Lôbo de Figueiredo, José Antônio Fiorot Júnior, Talitha Nery Rocha, Ayrton Roberto Massaro, João Pereira Leite,

Background and Purpose— Stroke is the leading cause of death in Brazil. This community-based study assessed lay knowledge about stroke recognition and treatment and risk factors for cerebrovascular diseases and activation of emergency medical services in Brazil. Methods— The study was conducted between July 2004 and December 2005. Subjects were selected from the urban population in transit about public places of 4 major Brazilian cities: São Paulo, Salvador, Fortaleza, and Ribeirão Preto. Trained ...

Tópico(s): Cerebral Venous Sinus Thrombosis

2007 - Lippincott Williams & Wilkins | Stroke