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Risk factors for the population’s mental health amidst the COVID-19 pandemic
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Vale, Mariana Ferreira

; Camargo-Júnior, Elton Brás

; Magalhães, Fernando Augusto Cintra

; Almeida-Júnior, José Jailson de

; Gherardi-Donato, Edilaine Cristina da Silva

; Fernandes, Maria Neyrian de Fátima

Revista da Escola de Enfermagem da USP

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2023, Volume 57 elocation e20220324

Resumo: En Es Pt | Texto: En Es Pt | PDF: En | PDF: Es | PDF: Pt

ABSTRACT Objective: To identify risk factors for mental health in the population in times of COVID-19 through the analysis of levels of socio-cognitive mindfulness and perception of stress in individuals. Method: This is a cross-sectional observational study with a quantitative approach, carried out through online data collection using the Perceived Stress Scale and the Langer Mindfulness Scale in a sample of 955 individuals from different regions of Brazil. Results: Women, younger people and individuals with low socioeconomic conditions had higher levels of perceived stress; on the other hand, older men and individuals with high socioeconomic status had higher levels of mindfulness. Conclusion: Socio-cognitive mindfulness was not a protective factor for perceived stress in the context of the COVID-19 pandemic.

RESUMEN Objetivo: Identificar factores de riesgo para la salud mental en la población en tiempos de COVID-19 a través del análisis de los niveles de mindfulness sociocognitivo y percepción de estrés en los individuos. Método: Se trata de un estudio observacional transversal con enfoque cuantitativo, realizado a través de la recolección de datos en línea utilizando la Escala de Estrés Percibido y la Escala de Mindfulness de Langer en una muestra de 955 individuos de diferentes regiones de Brasil. Resultados: Las mujeres, los jóvenes y las personas con condiciones socioeconómicas bajas presentaron mayores niveles de estrés percibido. Por el contrario, los hombres mayores y las personas con un nivel socioeconómico alto tenían niveles más altos de atención plena. Conclusión: El mindfulness sociocognitivo no fue un factor protector para el estrés percibido en el contexto de la pandemia de COVID-19.

RESUMO Objetivo: Identificar fatores de risco para a saúde mental na população em tempos de COVID-19 por meio da análise dos níveis atenção plena sociocognitiva e de percepção ao estresse nos indivíduos. Método: Trata-se de um estudo observacional do tipo transversal com abordagem quantitativa, realizado por meio de coleta de dados online utilizando a Escala de Estresse Percebido e a Escala de Atenção Plena de Langer em uma amostra de 955 indivíduos de diversas regiões do Brasil. Resultados: Mulheres, pessoas mais jovens e indivíduos com baixas condições socioeconômicas apresentaram maiores níveis de estresse percebido. Em contrapartida, os homens mais velhos e indivíduos com altas condições socioeconômicas apresentaram maiores níveis de atenção plena. Conclusão: A atenção plena sociocognitiva não se constituiu fator de proteção ao estresse percebido no contexto pandêmico da COVID-19.

https://doi.org/10.1590/1980-220x-reeusp-2022-0324en

Fast surveillance response reveals the introduction of a new yellow fever virus sub-lineage in 2021, in Minas Gerais, Brazil
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Andrade, Miguel Souza

; Campos, Fabrício Souza

; Oliveira, Cirilo Henrique de

; Oliveira, Ramon Silva

; Campos, Aline Alves Scarpellini

; Almeida, Marco Antônio Barreto de

; Fonseca, Vagner de Souza

; Simonini-Teixeira, Danilo

; Sevá, Anaiá da Paixão

; Temponi, Andrea Oliveira Dias

; Magalhães, Fernando Maria

; Chaves, Danielle Costa Capistrano

; Pereira, Maira Alves

; Lamounier, Ludmila Oliveira

; Menezes, Givaldo Gomes de

; Aquino-Teixeira, Sandy Micaele

; Gonçalves-dos-Santos, Maria Eduarda

; Bernal-Valle, Sofía

; Müller, Nicolas Felipe Drumm

; Cardoso, Jader da Cruz

; Santos, Edmilson dos

; Mares-Guia, Maria Angélica

; Albuquerque, George Rêgo

; Romano, Alessandro Pecego Martins

; Franco, Ana Cláudia

; Ribeiro, Bergmann Morais

; Roehe, Paulo Michel

; Abreu, Filipe Vieira Santos de

Memórias do Instituto Oswaldo Cruz

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2022, Volume 117 elocation e220127

Resumo: En | Texto: En | PDF: En

BACKGROUND In Brazil, the yellow fever virus (YFV) is maintained in a sylvatic cycle involving wild mosquitoes and non-human primates (NHPs). The virus is endemic to the Amazon region; however, waves of epidemic expansion reaching other Brazilian states sporadically occur, eventually causing spillovers to humans. OBJECTIVES To report a surveillance effort that led to the first confirmation of YFV in NHPs in the state of Minas Gerais (MG), Southeast region, in 2021. METHODS A surveillance network was created, encompassing the technology of smartphone applications and coordinated actions of several research institutions and health services to monitor and investigate NHP epizootics. FINDINGS When alerts were spread through the network, samples from NHPs were collected and YFV infection confirmed by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and genome sequencing at an interval of only 10 days. Near-complete genomes were generated using the Nanopore MinION sequencer. Phylogenetic analysis indicated that viral genomes were related to the South American genotype I, clustering with a genome detected in the Amazon region (state of Pará) in 2017, named YFVPA/MG sub-lineage. Fast YFV confirmation potentialised vaccination campaigns. MAIN CONCLUSIONS A new YFV introduction was detected in MG 6 years after the beginning of the major outbreak reported in the state (2015-2018). The YFV strain was not related to the sub-lineages previously reported in MG. No human cases have been reported, suggesting the importance of coordinated surveillance of NHPs using available technologies and supporting laboratories to ensure a quick response and implementation of contingency measures to avoid YFV spillover to humans.

https://doi.org/10.1590/0074-02760220127

Cross-sectional survey for Toxoplasma gondii infection in humans in Fernando de Noronha island, Brazil
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Carvalho, Maria da Conceição

; Ribeiro-Andrade, Müller

; Melo, Renata Pimentel Bandeira de

; Guedes, Dandara Matias

; Pinheiro Junior, José Wilton

; Cavalcanti, Erika Fernanda Torres Samico Fernandes

; Magalhães, Fernando Jorge Rodrigues

; Mota, Rinaldo Aparecido

Revista Brasileira de Parasitologia Veterinária

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2021, Volume 30 Nº 3 elocation e005121

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo A toxoplasmose, causada pelo protozoário Toxoplasma gondii, é uma zoonose e uma das doenças parasitárias transmitidas por alimentos mais importantes em todo o mundo. A prevalência em humanos é altamente variável, sendo influenciada por hábitos culturais, condições socioeconômicas e ambientais. O objetivo deste estudo foi estimar a prevalência de infecção por T. gondii em humanos, no arquipélago de Fernando de Noronha, Pernambuco, Brasil, e identificar os fatores de risco associados a essa infecção nesse contexto insular. A soroprevalência de anticorpos IgG anti-T. gondii nos ilhéus foi de 50,4% (172/341, 95% CI: 45,2%–55,7%). Os fatores associados à infecção encontrados foram o consumo de água do poço ou de água da chuva (Odds ratio [OR]: 2,43, p=0,020) e consumo de carne de caça (OR: 1,80, p=0,026). Este é o primeiro estudo a fornecer informações epidemiológicas da infecção por T. gondii entre os moradores da Ilha de Fernando de Noronha, revelando uma considerável soroprevalência de anticorpos nessa população. Este estudo fornece informações para subsidiar a adoção de medidas de prevenção e controle em ambientes insulares.

Abstract Toxoplasmosis, caused by the protozoan Toxoplasma gondii, is zoonotic disease and is one of the most important foodborne parasitic diseases globally. The prevalence in humans is highly variable, being influenced by cultural habits, socioeconomic, and environmental conditions. The objective of this study was to estimate the prevalence of T. gondii infection in humans on the archipelago of Fernando de Noronha, Pernambuco State, Brazil, and to identify the risk factors associated with this infection. The seroprevalence of immunoglobulin G anti-T. gondii antibodies was 50.4% (172/341, 95% CI: 45.2%–55.7%). Factors associated with the infection were consumption of well water or rainwater (odds ratio [OR]: 2.43, p=0.020) and consumption of game meat (OR: 1.80, p=0.026). This is the first study to provide epidemiological information of T. gondii infection among the residents of the Island of Fernando de Noronha, revealing a considerable antibody seroprevalence in this population. This study provides information for the adoption of prevention and control measures in island environments.

https://doi.org/10.1590/s1984-29612021062 213 downloads

Physiological demands of archery: effect of experience level
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Borges, Thiago Oliveira

; Moreira, Alexandre

; Bacurau, Reury Frank

; Magalhães, Fernando Henrique

; Capitani, Caroline Dario

; Martins, Alexandre Nunes

; Mochizuki, Luis

; Aoki, Marcelo Saldanha

Revista Brasileira de Cineantropometria & Desempenho Humano

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2020, Volume 22 elocation e72276

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O entendimento da fadiga durante a competição de Tiro com Arco pode auxiliar na otimização da rotina de treinamento de atletas em diferentes níveis competitivos. Este estudo investigou o efeito do nível de experiência do atleta sobre as respostas fisiológicas, durante competição simulada de Tiro com Arco para um atleta de elite (EA) e um arqueiro iniciante (NA). Esforço percebido, concentração de lactato e glicose sanguínea, força de preensão manual e eletromiografia foram registrados no início, após cada série e, 30-min após a simulação. O EA apresentou maior força de preensão manual para ambos braços, valor de média RMS constantemente mais baixo (Baseline 0,279V e 12ª série 0,221V, -20,7%), e valor de MF estável no decorrer da competição (Baseline 146Hz a 12a série 140Hz). O NA demonstrou menor força de preensão manual, aumento na RMS após a 6a série até o final da competição (Baseline 0,387V, 6a 0,576V, and 12a série 0,720V, +46,2%) e pequena diminuição na MF da 6ª até o final da 12ª série (2a série 122Hz, 4a série 127Hz, 6a série 112Hz e 12a série 117Hz, - 4,1%). Assim, todos os marcadores relacionados a fadiga apresentaram resposta discreta na simulação de competição de Tiro com Arco, com maior magnitude no NA, em comparação com EA. Este estudo apresentou as demandas fisiológicas da competição simulada de Tiro com Arco, no formato oficial, permitindo que treinadores e cientistas do esporte possam tomar decisões com maior confiança sobre estratégias de competição e treinamento.

Abstract The understanding of fatigue development during Archery competition would guide sports scientists, coaches and athletes on how to optimize the training routines of athletes from different competitive levels. This study investigated the effect of expertise level on physiological responses, during simulated archery competition (double-round 70m, 12 series, 6 arrows for an elite Brazilian Archer (EA) and a Novice Archer (NA). Ratings of perceived exertion, blood lactate and glucose, handgrip strength and electromyography were registered at the beginning, after each set from the 2nd to the 12tharrow and, 30-min after the competition simulation. The EA showed a greater handgrip strength for both arms, a constant lower mean RMS value (Baseline 0.279V and 12th set 0.221V, -20.7%), and a stable MF value throughout the competition (Baseline 146Hz to 12th set 140Hz). The NA showed a smaller handgrip strength, an increase in RMS after the 6th set towards the end of the competition (Baseline 0.387V, 6th 0.576V, and 12th set 0.720V, +46.2%) and a minor decrease in MF from the 6th to the end of 12th set (2nd set 122Hz, 4th set 127Hz, 6th set 112Hz and 12th set 117Hz, - 4.1%). In summary, all the fatigue-related markers showed a mild response to the Archery competition simulation, although a greater magnitude was observed in the NA, compared to the EA. This study reported the physiologic demands of an Archery simulated competition, in an official format, allowing coaches and sport scientists to draw more confident decisions on competition strategy and training design.

https://doi.org/10.1590/1980-0037.2020v22e72276 546 downloads

Integrated control of target spot and yield of cotton in the Brazilian cerrado biome
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SOUZA, HUGO M. DE

; THEODORO, GUSTAVO F.

; DIAS, ALFREDO R.

; SOUZA, CHRISTIAN R.W.

; MAGALHÃES, FERNANDO F.

Anais da Academia Brasileira de Ciências

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2020, Volume 92 elocation e20181205

Resumo: En | Texto: En | PDF: En

Abstract Target spot is a disease that has caused serious damage to cotton crops. This study was carried out to examine if different cotton genotypes, plant heights and fungicide treatments can be used as tools of an integrated control methods of target spot. The experiment was carried out in the 2014/15 crop season, in cerrado biome of Chapadão do Sul - MS, Brazil. It was used a randomized block design in a 2 × 3 × 3 factorial arrangement with four replicates. The factors were two plant heights (1 and 1.5 m), three cultivars (FMT 701, FM 975, and FM 944), and three fungicide treatments (control, FT1, and FT2). Fungicide treatments consisted of sequential applications of different fungicides of the triazole, strobilurin, and carboxamide groups. Cultivar FM 944 showed lower susceptibility to target spot. The shorter plants exhibited lower disease severity. The fungicides pyraclostrobin + fluxapyroxad and trifloxystrobin + prothioconazole reduced the severity of target spot. Cultivar FM 975 had the highest yield. A higher yield was obtained in the upper stratum than in the lower stratum of the plant.

https://doi.org/10.1590/0001-3765202020181205 604 downloads

Pam2CSK4 (TLR2 agonist) induces periodontal destruction in mice
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SOUZA, João Antonio Chaves de

; MAGALHÃES, Fernando Augusto Cintra

; OLIVEIRA, Guilherme Jose Pimentel Lopes de

; DE MOLON, Rafael Scaf

; ZUANON, José Antonio

; SOUZA, Pedro Paulo Chaves de

Brazilian Oral Research

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2020, Volume 34 elocation e012

Resumo: En | Texto: En | PDF: En

Abstract Lipoproteins are important bacterial immunostimulating molecules capable of inducing receptor activator of nuclear factor-κB (RANKL) and osteoclast formation in vitro and in vivo . Although these molecules are present in periodontopathogenic bacteria, their role in periodontitis is not known. In this study, we used Pam2CSK4 (PAM2), a synthetic molecule that mimics bacterial lipoprotein, to investigate the effects of lipoproteins on periodontitis in mice. C57BL/6 male mice were randomly divided into three experimental groups: 1) Negative control group: animals received vehicle injection; 2) Positive control group: animals received injection of Escherichia coli lipopolysaccharide (LPS); 3) PAM2 group: animals received PAM2 injection. All the injections were performed bilaterally every other day into the palatal mucosa between first and second molars. After twenty-four days, the animals were euthanized to assess alveolar bone volume (micro-CT), cellular and extracellular composition in the gingiva (stereometric analysis), and osteoclast numbers (TRAP staining). Treatment with either PAM2 or LPS induced gingival inflammation, as demonstrated by increased infiltration of inflammatory cells and enhanced angiogenesis, associated with a smaller number of fibroblasts and decreased extracellular matrix. Importantly, treatment not only with LPS but also with PAM2 resulted in a larger number of TRAP+ multinucleated osteoclasts and significant loss of alveolar bone. Collectively, our data demonstrate that PAM2 can induce gingival inflammation and bone loss in mice, broadening the avenues of investigation into the role of lipoproteins in the pathogenesis of periodontal disease.

https://doi.org/10.1590/1807-3107bor-2020.vol34.0012 1136 downloads

Low frequency of antibodies anti-Neospora caninum in rodents in Fernando de Noronha Island, Brazil
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LIMA, DÉBORA C.V. DE

; MELO, RENATA P.B. DE

; ANDRADE, MULLER R.

; DE ALCÂNTARA, ADRIANNE M.

; MAGALHÃES, FERNANDO JORGE R.

; CARVALHO, JÉSSICA C.S.

; SILVA, RENATO A. DA

; COSTA, MATEUS M. DA

; MOTA, RINALDO A.

Anais da Academia Brasileira de Ciências

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2019, Volume 91 Nº 4 elocation e20190439

Resumo: En | Texto: En | PDF: En

Abstract This study aimed to evaluate the frequency of Neospora caninum antibodies in rodents from the Island of Fernando de Noronha, Brazil, and to contribute to epidemiological data on neosporosis in this region. Blood samples were collected from 154 black-rats (Rattus rattus) and 12 rock-cavies (Kerodon rupestris). The search for anti-N. caninum antibodies was made using the NAT technique, with a cut-off of 1:20. The frequency of positive mice was 5.19% (8/154 - 1:20 titer) and all rock-cavies were negative. The low frequency of antibodies against N. caninum in rodents found in the Island shows the low contamination of the environment where these animals live.

https://doi.org/10.1590/0001-3765201920190439 562 downloads

Characterization of physicochemical composition, microbiology, sensory evaluation and microscopical attributes of sweetened condensed milk
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RENHE, Ísis Rodrigues Toledo

; PEREIRA, Danielle Braga Chelini

; SÁ, Jaqueline Flaviana Oliveira de

; SANTOS, Marcelo Cerqueira dos

; TEODORO, Vanessa Aglaê Martins

; MAGALHÃES, Fernando Antônio Resplande

; PERRONE, Ítalo Tuler

; SILVA, Paulo Henrique Fonseca da

Food Science and Technology

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Jun 2018, Volume 38 Nº 2 Páginas 293 - 298

Resumo: En | Texto: En | PDF: En

Abstract An analysis of nine sweetened condensed milk brands allowed for the identification of statistically significant difference in moisture, water activity (aw), soluble solids, percentage of protein, lactose crystals size, viscosity and in sensorial attributes of texture, characteristic flavor and flour texture. Relevant correlations between the composition and sensorial attributes were determined. Eighty percent of the samples presented of yeast from <0.6 logCFU.g-1 to 4.7 logCFU.g-1 and seventy percent presented of coagulase-negative staphylococcus from <3.1 log CFU.g-1 to 5.7 log CFU.g-1. These results attest the demand for more controls and investments to provide the market with a safe and standardized product.

https://doi.org/10.1590/1678-457x.34416 3681 downloads

EXTRAVERSION/INTROVERSION AND AGE-RELATED DIFFERENCES IN SPEED-ACCURACY TRADEOFF
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Meira Jr., Cassio de Miranda

; Moraes, Renato

; Moura, Mariana

; Ávila, Luciana Toaldo Gentilini

; Tosini, Laura

; Magalhães, Fernando Henrique

Revista Brasileira de Medicina do Esporte

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Mai 2018, Volume 24 Nº 3 Páginas 225 - 229

Resumo: Pt En Es | Texto: Pt En Es | PDF: Pt | PDF: En | PDF: Es

RESUMO Introdução: Diferenças de extroversão/introversão e idade podem influenciar na troca velocidade-precisão. Objetivo: A troca velocidade-precisão foi investigada em garotas, jovens adultas e idosas extrovertidas e introvertidas. Método: As participantes realizaram uma versão alternativa da tarefa de Fitts, a qual consistia em clicar alternadamente com a mão dominante no mouse, o mais rápido possível, em dois alvos retangulares na tela do computador, a fim de fazer doze tentativas em seis níveis aleatórios de dificuldade (doze combinações de larguras e distâncias entre os alvos). Cada um dos três grupos era composto por 16 introvertidas e 16 extrovertidas, com base nas versões brasileiras do questionário de Eysenck. Resultados: As idosas introvertidas acertaram menos o alvo com mais frequência e cometeram mais erros gerais em comparação às idosas extrovertidas. Ainda, as idosas acertaram menos o alvo com mais frequência e cometeram mais erros gerais, além de demorarem mais tempo para concluírem as tarefas com níveis maiores de dificuldade quando comparadas com as jovens adultas. Conclusão: Os achados foram interpretados com base nas teorias criadas para explicarem os principais processos sobre as diferenças relacionadas à extroversão/introversão e à idade. Nível de Evidência II; Estudo prospectivo de menor qualidade.

ABSTRACT Introduction: Extraversion/introversion and age differences might influence speed-accuracy tradeoff. Objective: The speed-accuracy tradeoff was investigated in extroverted and introverted female children, young adults and older adults. Method: Participants carried out an alternative version of Fitts’ task, which involved making alternate clicks with the mouse held in the dominant hand, moving as fast as possible, on two rectangular targets on a computer screen in order to make twelve attempts at six random levels of difficulty (twelve combinations of target widths and distances between targets). Each of the three groups was composed of 16 introverted and 16 extroverted subjects, based upon Brazilian versions of Eysenck’s questionnaire. Results: Elderly introverts fell short of the target more often and committed more overall errors than the elderly extroverts. Additionally, compared to their younger adult counterparts, the elderly subjects fell short of the target more often and committed more overall errors, besides taking longer to complete the task with higher levels of difficulty. Conclusion: The findings were interpreted in light of theories designed to explain the main processes underlying extroversion/introversion and age-related differences. Level of Evidence II; Lesser quality prospective study.

RESUMEN Introducción: Las diferencias de extroversión/introversión y edad pueden influir en el cambio velocidad-precisión. Objetivo: El cambio velocidad-precisión fue investigado en mujeres jóvenes adultas y de la tercera edad introvertidas y extrovertidas. Método: Las participantes realizaron una versión alternativa de la tarea de Fitts, que consistía en hacer clic alternadamente con el ratón, usando la mano dominante, lo más rápidamente posible, en dos objetos rectangulares en la pantalla de la computadora, a fin de realizar doce tentativas con seis niveles aleatorios de dificultad (doce combinaciones de anchos y distancias entre los objetos). Cada uno de los tres grupos fue compuesto por 16 introvertidas y 16 extrovertidas, con base en las versiones brasileñas del cuestionario de Eysenck. Resultados: Las mujeres de tercera edad introvertidas acertaron menos el objeto con más frecuencia y cometieron más errores generales en comparación a las mujeres de tercera edad extrovertidas. Además, las mujeres de tercera edad acertaron menos el objeto con más frecuencia y cometieron más errores generales, además de demorar más tiempo para concluir las tareas con niveles mayores de dificultad cuando comparadas con las mujeres jóvenes adultas. Conclusión: Los hallazgos fueron interpretados con base en las teorías creadas para explicar los principales procesos sobre las diferencias relacionadas a la extroversión/la introversión y a la edad. Nivel de Evidencia II; Estudio prospectivo de menor calidad.

https://doi.org/10.1590/1517-869220182403172690 3497 downloads

10.

Polymerization Shrinkage of Bulk Fill Composites and its Correlation with Bond Strength
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Almeida Junior, Lauber Jose dos Santos

; Lula, Estevam Carlos de Oliveira

; Penha, Karla Janilee de Souza

; Correia, Vinicius Souza

; Magalhães, Fernando Augusto Cintra

; Lima, Darlon Martins

; Firoozmand, Leily Macedo

Brazilian Dental Journal

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Mai 2018, Volume 29 Nº 3 Páginas 261 - 267

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O presente estudo teve por objetivo avaliar a contração de polimerização (CP) usando microtomografia computadorizada (µCT) e a resistência de união por microtração (µTBS) em restaurações classe I de compósitos bulk fill (CBF) e convencional, assim como a correlação entre esses fatores. Cavidades classe I (4 x 5 x 4 mm), fator C=4,2, foram feitas em terceiros molares livres de cárie que foram randomizados e divididos em 4 grupos (n = 6): XTI (Filtek Supreme XTE: técnica incremental); XTB (Filtek Supreme XTE: técnica de preenchimento único); TBF (Tetric Bulk Fill); E SF (SonicFill). Cada dente foi escaneado duas vezes em μCT: T0 -após o preenchimento da cavidade com compósito, e T1 - após a cura à luz. Os dados foram analisados subtraindo o volume do compósito para cada tempo (T1 - T0). Após 1 semana, os dentes foram seccionados transversalmente no sentido vestíbulo-palatino e mesio-distal para obter espécimes com aproximadamente 1 mm² de espessura e fixados em uma máquina de ensaio universal para teste de μTBS. Os testes de Kruskal-Wallis e Dunn mostraram diferença estatisticamente significante para a contração em μCT entre XTI e XTB, e entre SF e XTB. Em relação à μTBS, todos os grupos diferiram do XTB. Compósitos do tipo bulk fill apresentam uma CP similar ao compósito convencional nanoparticulado inserido usando a técnica incremental, porém a resistência de união foi maior para o grupo incremental, que apresentou um menor número de falhas pré-teste quando comparado aos CBF. Não foi observada correlação entre a contração de polimerização e a resistência de união nos compósitos estudados.

Abstract The present study aimed to evaluates polymerization shrinkage (PS) using microcomputed tomography (μCT) and microtensile bond strength (μTBS) in bulk fill composites (BFC) and conventional class I restorations as well as the correlation between these factors. Class I cavities (4 x 5 x 4 mm), factor-C = 4.2, were created in third molars that were free of caries, which were randomly divided in 4 groups (n = 6): XTI (Filtek Supreme XTE: incremental technique); XTB (Filtek Supreme XTE: single fill technique); TBF (Tetric Bulk Fill); and SF (SonicFill). Each tooth was scanned twice in μCT: T0 was after filling the cavity with composite, and T1 was after light curing. The data were analyzed by subtracting the composite volume for each time (T1 - T0). After 1 week, the teeth were sectioned crosswise in the buccolingual and mesiodistal directions to obtain specimens with approximately 1 mm² thickness and fixed in a universal testing machine to perform μTBS. The Kruskal-Wallis and Dunn tests showed a statistically significant difference for shrinkage in µCT among the XTI and XTB and between the SF and XTB. Regarding the μTBS, all the groups differed from XTB. Bulk fill composites type presents a PS similar to that of the conventional nanoparticulate composite inserted using the incremental technique, but the bond strength was higher for the incremental group, which presented a lower number of pre-test failures when compared to BFC. No correlation was observed between the polymerization shrinkage and bond strength in the studied composites.

https://doi.org/10.1590/0103-6440201801838 2277 downloads

11.

Systemic effect of mineral aggregate-based cements: histopathological analysis in rats
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Garcia, Lucas da Fonseca Roberti

; Huck, Claudia

; Magalhães, Fernando Augusto Cintra

; Souza, Pedro Paulo Chaves de

; Souza Costa, Carlos Alberto de

Journal of Applied Oral Science

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Dez 2017, Volume 25 Nº 6 Páginas 620 - 630

Resumo: En | Texto: En | PDF: En

Abstract Objective: Several studies reported the local tissue reaction caused by mineral aggregate-based cements. However, few studies have investigated the systemic effects promoted by these cements on liver and kidney when directly applied to connective tissue. The purpose of this in vivo study was to investigate the systemic effect of mineral aggregate-based cements on the livers and kidneys of rats. Material and Methods: Samples of Mineral Trioxide Aggregate (MTA) and a calcium aluminate-based cement (EndoBinder) containing different radiopacifiers were implanted into the dorsum of 40 rats. After 7 and 30 d, samples of subcutaneous, liver and kidney tissues were submitted to histopathological analysis. A score (0-3) was used to grade the inflammatory reaction. Blood samples were collected to evaluate changes in hepatic and renal functions of animals. Results: The moderate inflammatory reaction (2) observed for 7 d in the subcutaneous tissue decreased with time for all cements. The thickness of inflammatory capsules also presented a significant decrease with time (P<.05). Systemically, all cements caused adverse inflammatory reactions in the liver and kidney, being more evident for MTA, persisting until the end of the analysis. Liver functions increased significantly for MTA during 30 d (P<.05). Conclusion: The different cements induced to a locally limited inflammatory reaction. However, from the systemic point of view, the cements promoted significant inflammatory reactions in the liver and kidney. For MTA, the reactions were more accentuated.

https://doi.org/10.1590/1678-7757-2016-0634 1011 downloads

12.

Motor learning characterization in people with autism spectrum disorder: A systematic review
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Moraes, Íbis Ariana Peña de

; Massetti, Thais

; Crocetta, Tânia Brusque

; Silva, Talita Dias da

; Menezes, Lilian Del Ciello de

; Monteiro, Carlos Bandeira de Mello

; Magalhães, Fernando Henrique

Dementia & Neuropsychologia

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Set 2017, Volume 11 Nº 3 Páginas 276 - 286

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO O Transtorno do Espectro Autista (TEA) é uma desordem do desenvolvimento neurológico caracterizada principalmente por déficits na interação social, comunicação e aprendizagem de habilidades implícitas. OBJETIVO: Analisar os resultados da pesquisa sobre "aprendizagem motora" e suas formas de mensurar na "desordem autista". MÉTODOS: Uma pesquisa bibliográfica sistemática foi feita usando Medline/PubMed, Web of Science, BVS (biblioteca virtual de saúde) e PsycINFO. Incluímos artigos que mostraram as palavras-chave "autismo" e "aprendizagem motora". As variáveis consideradas foram os aspectos metodológicos; os resultados apresentados e a qualidade metodológica dos estudos. RESULTADOS: Um total de 42 artigos foram identificados; foram excluídos 33 artigos porque não atendiam aos critérios de inclusão. Os dados foram extraídos de nove estudos elegíveis e resumidos. CONCLUSÃO: Concluímos que, embora as pessoas com TEA tenham demonstrado dificuldades de desempenho em diferentes tarefas de aprendizagem motora de memória, a aquisição de habilidades ocorre nessa população; No entanto, essa aquisição de habilidades está relacionada a eventos heterogêneos, ocorrendo sem a consciência dos indivíduos.

ABSTRACT Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder primarily characterized by deficits in social interaction, communication and implicit skill learning. OBJECTIVE: To analyse the results of research on "motor learning" and the means used for measuring "autistic disorder". METHODS: A systematic literature search was done using Medline/PubMed, Web of Science, BVS (virtual health library), and PsycINFO. We included articles that contained the keywords "autism" and "motor learning". The variables considered were the methodological aspects; results presented, and the methodological quality of the studies. RESULTS: A total of 42 studies were identified; 33 articles were excluded because they did not meet the inclusion criteria. Data were extracted from nine eligible studies and summarized. CONCLUSION: We concluded that although individuals with ASD showed performance difficulties in different memory and motor learning tasks, acquisition of skills still takes place in this population; however, this skill acquisition is related to heterogeneous events, occurring without the awareness of the individual.

https://doi.org/10.1590/1980-57642016dn11-030010 7893 downloads

13.

PERFORMANCE OF ESTIMATIVE MODELS FOR DAILY REFERENCE EVAPOTRANSPIRATION IN THE CITY OF CASSILÂNDIA, BRAZIL
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Cunha, Fernando F. da

; Magalhães, Fernando F.

; Castro, Marco A. de

; Souza, Epitácio J. de

Engenharia Agrícola

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Fev 2017, Volume 37 Nº 1 Páginas 173 - 184

Resumo: En | Texto: En | PDF: En

ABSTRACT Before choosing the method of the estimate of reference evapotranspiraton (ET0) in a region, it is important to evaluate the degree of precision of the model. The present research aimed to evaluate the performance of 30 methods for daily ET0 estimate in the Cassilândia city, Brazil. The meteorological data had been obtained from the National Institute of Meteorology in the period of four years (from April, 2008 to March, 2012). As standard method it was chosen the Penman-Monteith-FAO56, and the comparison of the results was by means of the estimated standard error (ESE), the determination coefficient (R2), the coefficients “a” and “b” of the linear regressions, Willmott's index of agreement (d), Pearson's correlation coefficient (r) and the reliable coefficient (c). The best methods for estimate the daily ET0 had been: Penman-Original, Stephens-Stewart, Abtew, Thornthwaite-Modified, Priestley-Taylor, Penman-FAO 24, Hicks-Hess, Liquid-Radiation, Turc, Hamon, Camargo, Temperature-Radiation, Global-Radiation and the Original Hargreaves. When it has been given only temperature data, the Camargo method is the more recommended. The methods Blaney-Criddle-FAO 24, Radiation-FAO 24, Makkink, Hargreaves-Samani, Jensen-Haise, Linacre, Ivanov, Kharrufa, Garcia-Lopez, Blaney-Morin, McCloud, McGuiness-Bordne, Romanenko, Lungeon, Tanner-Pelton and Thornthwaite should not be used to estimate the daily ET0.

https://doi.org/10.1590/1809-4430-eng.agric.v37n1p173-184/2017 1268 downloads

14.

Is there correlation between polymerization shrinkage, gap formation, and void in bulk fill composites? A μCT study
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Almeida Junior, Lauber José dos Santos

; Penha, Karla Janilee de Souza

; Souza, Ana Ferreira

; Lula, Estevam Carlos Oliveira

; Magalhães, Fernando Cintra

; Lima, Darlon Martins

; Firoozmand, Leily Macedo

Brazilian Oral Research

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2017, Volume 31 elocation e100

Resumo: En | Texto: En | PDF: En

Abstract: This in vitro study aimed to evaluate the volume of polymerization shrinkage (VS), gap (VG), and void (VV) using computerized microtomography (μCT) in bulk fill resin composites and conventional class I restorations, and to establish a correlation between these factors. Class I cavities (4 x 5 x 4 mm), C-factor = 4.2, were performed on caries-free human third molars and randomly divided into five groups (n = 6): FSI (Filtek Supreme XTE incremental insertion); FSS [(Filtek Supreme XTE single insertion(SI)]; TBF [(Tetric Bulk Fill: SI and manual filling (MF)]; SFM (Sonic Fill: SI/MF); and SFS (SonicFill: SI and sonic filling). The teeth were scanned and analyzed by μCT at T0, after filling the cavity with resin, and at T1, after polymerization for VG and VV, and for VS (T1-T0). There was statistically significant difference in VS in μCT for the FSI and FSS groups and between SFS and FSS as well as some difference in VV for FSI and bulk fill resin composites and no difference in VG between the conventional technique and bulk fill composites. Bulk fill resin composites presented similar VS and gap formation to those of incrementally inserted conventional resin composites. There is a moderate and weak positive correlation between polymerization shrinkage and gap formation and void, respectively. The final gap formation was more dependent on the initial gap than on polymerization shrinkage or void volume.

https://doi.org/10.1590/1807-3107bor-2017.vol31.0100 3311 downloads

15.

Risk factors for Toxoplasma gondii infection in sheep and cattle from Fernando de Noronha Island, Brazil
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Magalhães, Fernando Jorge Rodrigues

; Ribeiro-Andrade, Müller

; Alcântara, Adrianne Mota de

; Pinheiro Júnior, José Wilton

; Sena, Maria José de

; Porto, Wagnner José Nascimento

; Vieira, Rafael Felipe da Costa

; Mota, Rinaldo Aparecido

Revista Brasileira de Parasitologia Veterinária

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Dez 2016, Volume 25 Nº 4 Páginas 511 - 515

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo A toxoplasmose é uma zoonose cosmopolita que acomete animais de sangue quente. Objetivou-se nessa investigação determinar a prevalência e identificar os fatores de risco associados à ocorrência da infecção por T. gondii em ruminantes domésticos criados na Ilha de Fernando de Noronha e demonstrar que bovinos e ovinos criados na ilha de Fernando de Noronha, Brasil, apresentam prevalências estatisticamente distintas. Foram obtidas amostras de soro sanguíneo de todos os ovinos (n=240) e bovinos (n=140) de todas as propriedades da ilha para a pesquisa de anticorpos na Reação de Imunofluorescência Indireta. Os fatores de risco foram analisados por meio da análise univariada e regressão logística. A prevalência de ovinos reagentes foi de 85,0% e 10,7% para bovinos, que foram significativamente diferentes. Na análise multivariada, local de contato de ovinos com outras espécies foi identificado como fator de risco. Para os bovinos, os fatores de risco foram: sistema extensivo, fonte de água, número de gatos nas propriedades e a presença de rato. Os resultados obtidos demonstram diferença significativa nas prevalências em ovinos e bovinos criados neste ambiente insular.

Abstract Toxoplasmosis is a zoonotic disease of global distribution that affects all warm-blooded animals. The purpose of this investigation was to determine the prevalence of T. gondii infection and identify the risk factors associated with its occurrence in domestic ruminants raised on the island of Fernando de Noronha, Brazil, and to confirm that cattle and sheep raised in Fernando de Noronha Island present statistically different T. gondii prevalence rates. Serum samples were collected from sheep (n=240) and cattle (n=140) for the detection of antibodies by indirect immunofluorescence. Samples were collected from all the animals on all the farms. Risk factors were analyzed by univariate analysis and logistic regression. The prevalence rate of positive sheep was 85.0% while that of cattle was 10.7%. A multivariate analysis revealed that the site of contact of sheep with felines was a risk factor. For cattle, the risk factors identified in this study were: extensive farming system, water source, more than three cats per farm, and the presence of rats in feed storage locations. The findings revealed a significant difference in the prevalence rates in sheep and cattle raised in this insular environment.

https://doi.org/10.1590/s1984-29612016051 1778 downloads

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