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Temperature field of composite steel and concrete slabs in fire situation
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Bolina, Fabrício Longhi

; Rodrigues, João Paulo Correia

Revista IBRACON de Estruturas e Materiais

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2024, Volume 17 N. 2 elocation e17208

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Composite steel decking concrete slabs are an important structural member in building construction. Research on its thermal behavior should be developed to understand its fire performance. In this paper, a comparison of the temperature distribution in the cross-section of steel decking concrete slabs subjected to fire is made through three different procedures: (a) standardized analytical, (b) experimental and (c) numerical. The analytical method was the one proposed in NBR 14323 standard. The experimental tests corresponding to eight real-scale fire tests on composite slabs carried out by the authors. The numerical tests were done for the same configurations of the experimental tests and used the FEA software Abaqus. Steel decking temperatures obtained with NBR 14323 methodologies showed good convergence with the experimental and numerical ones. The same was not observed for the concrete, positive and negative rebar.

Resumo As lajes mistas de aço e concreto (steel deck) trata-se de um importante elemento construtivo de edifícios estruturados. Pesquisas sobre o seu comportamento em altas temperaturas devem ser conduzidas para compreender o seu desempenho ao incêndio. Neste estudo, comparou-se a distribuição de temperatura na seção transversal (isotermas) destas lajes através de três procedimentos: (a) analítico, (b) experimental e (c) numérico. O procedimento analítico é o proposto pela norma NBR 14323. Os testes experimentais correspondem a oito protótipos de lajes ensaiados em escala real pelos autores. A parte numérica foi feita com a mesma configuração da experimental usando o método dos elementos finitos com o software Abaqus. No caso das temperaturas médias da chapa do deck metálico, notou-se convergência entre as obtidas pelo procedimento analítico da NBR 14323 e os resultados experimentais e numéricos. O mesmo não ocorreu para as isotermas do concreto, bem como armaduras positivas e negativas.

https://doi.org/10.1590/s1983-41952024000200008

Assessment of maternal knowledge of solar exposure and vitamin D in the neonatal period
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Witkowski, Sandra Mara

; Pfitzer, Catarina

; Rudolf, Emanueli

; Souza, Gabriela de

; Fajardo, Aline Didoni

; Albini, Flávia Maestri Nobre

; Lando, Fabricio Sbroglio

; Wilde, Marco Otilio Duarte Rodrigues

Revista Paulista de Pediatria

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2024, Volume 42 elocation e2023040

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT Objective: To assess mothers’ knowledge on sun exposure related to serum vitamin D levels in the neonatal period. Methods: Observational, analytical and cross-sectional study, carried out from August 2020 to May 2021 through a questionnaire directed to mothers of newborns, in a maternity hospital in Southern Brazil. Results: From 141 interviewees, 132 (93.6%) believe it is important to expose the neonate to sun, 101 (71.6%) think this exposure can increase vitamin D levels, 86 (61%) received such information from a doctor, 108 (76.6%) believe there are no risks of sun exposure, 88 (62.4%) claim it isn´t necessary to use any kind of protection, 96 (68.1%) said that only exposure to the sun was necessary to maintain adequate levels of vitamin D during the neonatal period. Only two mothers (1.4%) claim that you should not exposure the neonate to the sun, and only one (0.7%) stated that sun expose can cause skin problems. Conclusions: Most mothers lack satisfactory knowledge about sun exposure related to serum vitamin D levels in the neonatal period. The need to inform and clarify the population about sun exposure during this period is remarkable, in addition to disseminating the proper way to maintain serum levels of vitamin D.

RESUMO Objetivo: Avaliar o conhecimento das mães acerca da exposição solar relacionada com níveis séricos de vitamina D no período neonatal. Métodos: Estudo observacional, analítico e transversal, realizado de agosto de 2020 a maio de 2021 por meio de questionário dirigido às mães de recém-nascidos, em uma maternidade no sul do Brasil. Resultados: De 141 entrevistadas, 132 (93,6%) acreditam ser importante expor o lactente ao sol no primeiro mês de vida, 101 (71,6%) acham que essa exposição aumenta os níveis de vitamina D, 86 (61,0%) receberam tal informação de um médico, 108 (76,6%) acreditam que expor o neonato ao sol não causa riscos para a saúde, 88 (62,4%) acham que não é necessário usar proteção contra radiação solar ao expor o neonato ao sol, e 96 (68,1%) afirmaram que apenas a exposição ao sol basta para manter os níveis adequados de vitamina D durante o período neonatal. Apenas duas mães (1,4%) afirmaram que não se deve expor o neonato ao sol e uma (0,7%) que a exposição solar pode causar problemas de pele. Conclusões: A maioria das mães não possui conhecimento satisfatório acerca da exposição solar relacionada aos níveis séricos de vitamina D no período neonatal. É notável a necessidade de informar e esclarecer a população sobre a exposição solar nesse período, além de disseminar a maneira adequada de manter os níveis séricos de vitamina D.

https://doi.org/10.1590/1984-0462/2024/42/2023040

Five cycles of intrapopulation recurrent selection in half-sib progenies of fresh corn
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Cintra, Pedro H. N.

; Resende, Cecília L. P.

; Damaso, Leandro F.

; Carvalho, Daniel D. C.

; Silva, Fernanda de C.

; Rodrigues, Fabricio

Revista Caatinga

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sep 2023, Volume 36 N. 3 Pages 723 - 730

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT Fresh corn is a highly appreciated vegetable in Brazil; this crop has high added value and profitability when compared to dry corn. Despite the consumer market demand for quality, cultivars are not launched every crop season and there is a small number of cultivars available to growers. This denotes a need for breeding programs focused on generating information and genotypes that can occupy this market niche. The objective of this work was to evaluate the progress of five cycles of intrapopulation recurrent selection in half-sib progenies of fresh corn, in the southwest region of Goiás. A randomized block experimental design was used, with evaluation of 64 progenies of corn half-sib progenies and selection intensity of 30% per cycle, with three replications, in the 2011-2012, 2013-2014, 2015-2016, 2017-2018, and 2020-2021 summer crop seasons. The half-sib progenies of fresh corn exhibited genetic variability through intrapopulation recurrent selection in the different selection cycles, which is still promising for further selections after five cycles, with evaluation of 64 progenies per cycle. The base population from crossings between hybrids for tropical and temperate climates showed to be promising for increasing the genetic base of fresh corn populations, with satisfactory gains over the five cycles, presenting mean heritability between the cycles of approximately 78.9% for relative chlorophyll index, 62.2% for plant height, 75.1% for ear insertion height, 70% for ear diameter, 56.6% for ear length, 71.4% for unhusked ear yield, and 71% for marketable ear yield.

RESUMO O milho fresco é uma hortaliça muito apreciada pelos brasileiros e, além disso, possui alto valor agregado e maior lucratividade, quando comparado aos grãos secos. O mercado consumidor apesar de exigente na qualidade, não é abastecido com novas cultivares a cada safra e com um número ínfimo sendo disponível aos produtores. Assim, existe a necessidade da criação de programas de melhoramento, com o intuito de gerar informações e genótipos capazes de suprir esse nicho de mercado. O objetivo do estudo foi avaliar o progresso da seleção em progênies de meiosirmãos de milho fresco, em cinco ciclos de seleção recorrente intrapopulacional, na região sudoeste de Goiás. O delineamento experimental utilizado foi o de blocos casualizados, com a avaliação de 64 progênies de meios-irmãos e intensidade de seleção de 30% por ciclo, com três repetições, em diferentes safras de verão (2011-2012, 2013-2014, 2015-2016, 2017-2018 e 2020-2021). As progênies de famílias de meios-irmãos de milho fresco apresentaram variabilidade genética por meio de seleção recorrente intrapopulacional nos diferentes ciclos de seleção, com avaliação de 64 progênies por ciclo. A população base de cruzamentos entre híbridos para climas tropicais e temperados mostrou-se promissora para aumentar a base genética de populações de milho fresco, com ganhos satisfatórios ao longo dos cinco ciclos, com herdabilidade média de aproximadamente 78,9% para o índice relativo de clorofila, 62,2% para altura de planta, 75% para inserção da espiga, 70% para diâmetro da espiga, 56,6% para comprimento da espiga, 71,4% para espigas empalhadas e 71% para espigas comerciais entre os ciclos.

https://doi.org/10.1590/1983-21252023v36n324rc

Effect of 15 consecutive HIIT sessions on the redox State in Wistar rats
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Rodrigues, Josimar Camacho

; Costa, Roas de Araújo

; Aidar, Felipe José

; Souza, Raphael Fabrício de

; Brito, Ciro José

; Santos, Jymmys Lopes dos

; Vieira-Souza, Lucio Marques

Motricidade

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sep 2023, Volume 19 N. 3 Pages 306 - 312

Abstract: En | Text: En | PDF: En

ABSTRACT High-intensity interval training (HIIT) can induce oxidative stress. The main aim of this study was to evaluate the effect of 15 sessions of a HIIT protocol in Wistar rats on oxidative damage markers in different tissues (blood, muscle, liver and heart). Thus, animals weighing 250-300 g were used and randomly divided into 2 groups (n= 10): Control (CG) and animals submitted to HIIT (TG) through a swimming protocol. The results showed that HIIT increased the production of malondialdehyde (MDA) in TG animals: serum (306.75%), gastrocnemius muscle (259.2%), liver (452.6%) and heart (215%), while the concentration of sulfhydryl groups decreased: serum (40%), gastrocnemius muscle (44.7%), liver (44.6%) and heart (47.2%). Thus, it could be concluded that 15 HIIT sessions altered the redox state of Wistar rats due to increased oxidative damage markers in the analysed tissues.

https://doi.org/10.6063/motricidade.31537

Effect of Combined Training on Body Image, Body Composition and Functional Capacity in Patients with Breast Cancer: Controlled Clinical Trial
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Reis, Andréa Dias

; Pereira, Paula Tâmara Vieira Teixeira

; Castro Filha, Jurema Gonçalves Lopes

; Rodrigues, Evelyn Feitosa

; Laranjeira, Isadora Pinheiro

; Ramallo, Bianca Trovello

; Castro, Marcela Rodrigues de

; Rossi, Fabrício Eduardo

; Freitas Júnior, Ismael Forte

; Garcia, João Batista Santos

Revista Brasileira de Ginecologia e Obstetrícia

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may 2023, Volume 45 N. 5 Pages 242 - 252

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Objective Evaluate the effect of combined training on body image (BI), body composition and functional capacity in patients with breast cancer. As also the relationship of BI with body composition and functional capacity. Methods This was a Controlled Clinical Trial study, this study including 26 patients with breast cancer (30 to 59 years). The training group (n = 13) underwent 12 weeks of training, including three 60-min sessions of aerobic exercise and resistance training, and two sessions of flexibility training per week; each flexibility exercise lasted 20s. The Control Group (n = 13) received only the standard hospital treatment. Participants were evaluated at baseline and after 12 weeks. BI (primary outcomes) was assessed using the Body Image After Breast Cancer Questionnaire; Body composition was estimated with the indicators: Body mass index; Weight, Waist hip Ratio; Waist height ratio; Conicity index; Reciprocal ponderal index; Percentage of fat; Circumference of the abdomen and waist; Functional capacity by cardiorespiratory fitness (cycle ergometer) and strength (manual dynamometer). The statistic was performed in the Biostatistics and Stata 14.0 (α = 5%). Results The patients in the training group showed a reduction in the limitation dimension (p = 0.036) on BI, However, an increase in waist circumference was observed in both groups. In addition an increase in VO2max (p < 0.001) and strength in the right (p = 0.005) and left arms (p = 0.033). Conclusion Combined training demonstrates to be an effective and non-pharmacological strategy to patients with breast cancer, with improvement on BI and functional capacity, changing related variables negatively when there is no physical training.

Resumo Objetivo Avaliar o efeito do treinamento combinado na imagem corporal (IB), composição corporal e capacidade funcional em pacientes com câncer de mama. Assim como a relação do IB com a composição corporal e capacidade funcional. Métodos Este foi um estudo de Ensaio Clínico Controlado, este estudo incluiu 26 pacientes com câncer de mama (30 a 59 anos). O grupo de treinamento (n = 13) foi submetido a 12 semanas de treinamento, incluindo três sessões de 60 min de exercício aeróbio e treinamento de resistência, e duas sessões de treinamento de flexibilidade por semana; cada exercício de flexibilidade durou 20s. O Grupo Controle (n = 13) recebeu apenas o tratamento hospitalar padrão. Os participantes foram avaliados no início e após 12 semanas. O IB (desfechos primários) foi avaliado por meio do Body Image After Breast Cancer Questionnaire; A composição corporal foi estimada com os indicadores: índice de massa corporal; Peso, relação cintura-quadril; Relação da altura da cintura; Índice de conicidade; Índice ponderal recíproco; Porcentagem de gordura; Circunferência do abdômen e cintura; Capacidade funcional por aptidão cardiorrespiratória (cicloergômetro) e força (dinamômetro manual). A estatística foi realizada na Bioestatística e no Stata 14.0 (α = 5%). Resultados Os pacientes do grupo de treinamento apresentaram redução da dimensão da limitação (p = 0,036) no IB, porém, foi observado aumento da circunferência da cintura em ambos os grupos. Além disso, um aumento do VO2máx (p <0,001) e da força nos braços direito (p = 0,005) e esquerdo (p = 0,033). Conclusão O treinamento combinado demonstra ser uma estratégia eficaz e não farmacológica para pacientes com câncer de mama, com melhora do IB e da capacidade funcional, alterando variáveis relacionadas negativamente quando não há treinamento físico.

https://doi.org/10.1055/s-0043-1770126

Modelagem bayesiana da precipitação máxima de Petrópolis (RJ) e Poços de Caldas (MG)
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Silva, Sandra Valéria Coelho da

; Ferreira, Thales Rangel

; Avelar, Fabricio Goecking

; Liska, Gilberto Rodrigues

; Muniz, Joel Augusto

; Beijo, Luiz Alberto

Engenharia Sanitaria e Ambiental

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2023, Volume 28 elocation e20210342

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The cities of Petrópolis (RJ) and Poços de Caldas (MG) are located in the mountain range regions of their respective states in Brazil. They frequently suffer from damage caused by heavy rains. Therefore, analyzing and predicting the occurrence of maximum rainfall for these locations is fundamental for planning activities that are vulnerable to its occurrence. The modeling of this variable is done, generally, through the generalized distribution of extreme values (GEV), which the Bayesian methodology has shown good results in estimating its parameters. Therefore, the present study aimed to fit the GEV distribution to the historical series of maximum rainfall in Petrópolis and Poços de Caldas, and to evaluate different structures of prior distributions, informative and non-informative, in predicting the maximum rainfall expected for different return times. The number of successes and precision were analyzed in order to evaluate the predictions obtained with the information from the maximum rainfall of different locations to elicit the prior distribution. To obtain the posterior marginal distributions, the Monte Carlo method via Markov Chains was used. The use of informative prior distribution based on data from Poços de Caldas was more precise and accurate to predict the maximum rainfall for Petrópolis, while for Poços de Caldas, the informative prior based on information from São João da Boa Vista (SP) provided the best results. For both locations, it is expected that, in an average time of 5 years, there will be at least one day with maximum rainfall equal to or greater than 100 mm.

Resumo As cidades de Petrópolis (RJ) e Poços de Caldas (MG) estão situadas em regiões serranas de seus respectivos estados e sofrem frequentemente com estragos provocados por fortes chuvas. Analisar e prever a ocorrência de precipitações máximas nessas localidades são fundamentais para o planejamento de atividades vulneráveis à sua ocorrência. A modelagem dessa variável é feita geralmente com distribuição generalizada de valores extremos (GEV), e a metodologia bayesiana tem apresentado bons resultados na estimação de seus parâmetros. Sendo assim, o presente estudo teve como objetivos ajustar a distribuição GEV às séries históricas de precipitação máxima de Petrópolis e Poços de Caldas e avaliar diferentes estruturas de distribuições a priori, informativas e não informativas, na predição da precipitação máxima esperada para diferentes tempos de retorno. Foram analisados o número de acertos e a precisão a fim de avaliar as previsões obtidas com as informações advindas das precipitações máximas de diferentes localidades para eliciação da distribuição a priori. A obtenção das distribuições marginais a posteriori foi realizada usando-se o método Monte Carlo via cadeias de Markov. A utilização da distribuição a priori informativa fundamentada nos dados de Poços de Caldas foi mais precisa e teve maior número de acertos para predizer as precipitações máximas para Petrópolis, enquanto para Poços de Caldas foi a priori informativa com base nas informações de São João da Boa Vista (SP). Para ambas as localidades, espera-se que, em um tempo médio de cinco anos, ocorra pelo menos um dia com precipitação máxima igual ou superior a 100 mm.

https://doi.org/10.1590/s1413-415220210342

Clinical characteristics and outcomes of patients with COVID-19 admitted to the intensive care unit during the first and second waves of the pandemic in Brazil: a single-center retrospective cohort study
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Corrêa, Thiago Domingos

; Midega, Thais Dias

; Cordioli, Ricardo Luiz

; Barbas, Carmen Silvia Valente

; Rabello Filho, Roberto

; Silva, Bruno Caldin da

; Silva Júnior, Moacyr

; Nawa, Ricardo Kenji

; Carvalho, Fabrício Rodrigues Torres de

; Matos, Gustavo Faissol Janot de

; Lucinio, Neide Marcela

; Rodrigues, Rodrigo Dias

; Eid, Raquel Afonso Caserta

; Bravim, Bruno de Arruda

; Pereira, Adriano José

; Santos, Bento Fortunato Cardoso dos

; Pinho, João Renato Rebello

; Pardini, Andreia

; Teich, Vanessa Damazio

; Laselva, Claudia Regina

; Cendoroglo Neto, Miguel

; Klajner, Sidney

; Ferraz, Leonardo José Rolim

einstein (São Paulo)

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2023, Volume 21 elocation eAO0233

Abstract: En | Text: En | PDF: En

ABSTRACT Objective To describe and compare the clinical characteristics and outcomes of patients admitted to intensive care units during the first and second waves of the COVID-19 pandemic. Methods In this retrospective single-center cohort study, data were retrieved from the Epimed Monitor System; all adult patients admitted to the intensive care unit between March 4, 2020, and October 1, 2021, were included in the study. We compared the clinical characteristics and outcomes of patients admitted to the intensive care unit of a quaternary private hospital in São Paulo, Brazil, during the first (May 1, 2020, to August 31, 2020) and second (March 1, 2021, to June 30, 2021) waves of the COVID-19 pandemic. Results In total, 1,427 patients with COVID-19 were admitted to the intensive care unit during the first (421 patients) and second (1,006 patients) waves. Compared with the first wave group [median (IQR)], the second wave group was younger [57 (46-70) versus 67 (52-80) years; p<0.001], had a lower SAPS 3 Score [45 (42-52) versus 49 (43-57); p<0.001], lower SOFA Score on intensive care unit admission [3 (1-6) versus 4 (2-6); p=0.018], lower Charlson Comorbidity Index [0 (0-1) versus 1 (0-2); p<0.001], and were less frequently frail (10.4% versus 18.1%; p<0.001). The second wave group used more noninvasive ventilation (81.3% versus 53.4%; p<0.001) and high-flow nasal cannula (63.2% versus 23.0%; p<0.001) during their intensive care unit stay. The intensive care unit (11.3% versus 10.5%; p=0.696) and in-hospital mortality (12.3% versus 12.1%; p=0.998) rates did not differ between both waves. Conclusion In the first and second waves, patients with severe COVID-19 exhibited similar mortality rates and need for invasive organ support, despite the second wave group being younger and less severely ill at the time of intensive care unit admission.

https://doi.org/10.31744/einstein_journal/2023ao0233

FEM modal analysis of a garlic harvester for varying geomorphologies
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Ojeda, Elka Carolina

; Reis, Ângelo Vieira dos

; Medeiros, Fabricio Ardais

; Marques, Leomar Santos

; Machado, Roberto Lilles Tavares

; Magalhães, Ricardo Rodrigues

; Saavedra, Gianna de la Tinidad

; Zanchin, Mayara

Revista Ciência Agronômica

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2023, Volume 54 elocation e20218188

Abstract: En | Text: En | PDF: En

ABSTRACT In family farming, mechanisation, when appropriate to the task and to the size of the property, can be one way of easing tiring and repetitive work, such as garlic harvesting. The present study is based on a model of harvester currently on the market, and proposes several improvements for mechanising the harvest on family farms, with an emphasis on sloping terrain, to reduce costs and increase productivity. Since the equipment currently on the market reduces the operational performance of these producers resulting in the high prices of commercial garlic, the aim of this study was to evaluate, using the Finite Element Method, the von Mises stresses and the displacement of a garlic harvester in different topographies. A structural analysis was carried out, and the vibration modules in the three main parts that make up the structure of the garlic harvester were checked: the structure supporting the scarifier point, the structure of the plant transport system, and the structure at the rear of the harvester. The structural modifications that were implemented corrected the initial high-stress conditions, showing improvements in stress concentration and areas of displacement. As such, the entire structure of the garlic harvester tends to withstand the proposed loads. From the results of the simulations, we conclude that the connecting support may undergo greater response from structural dynamics, and that frequencies greater than 45.7 Hz should be avoided since there are several natural frequencies above this range that might cause interference to the structure.

https://doi.org/10.5935/1806-6690.20230040

Early selection in Theobroma grandiflorum, aiming at tolerance to hypoxia
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Rodrigues, Jardel Diego Barbosa

; Alves, Rafael Moysés

; Chaves, Saulo Fabrício da Silva

Revista Brasileira de Fruticultura

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2023, Volume 45 elocation e-948

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Cupuassu (Theobroma grandiflorum)-based agroforestry system (AFS) can be used for restoration of vegetation around springs and riparian forests of water sources (rivers, streams, lakes etc.), subject to constant flooding. The objectives of this work were to study the relations between morphophysiological traits when flooding occurs, determining the most important to assess genotypes’ tolerance, and evaluate the ability of cupuassu genotypes to express alternative phenotypes and grow efficiently, in order to select materials capable of sustaining hypoxic conditions. The trial was carried out in a greenhouse, in a completely randomized design with a 16 x 2 (16 progenies and two water regimes) factorial scheme and four replications. Treatments started six months after the seedlings were transplanted. 15 traits related to vegetative development, biomass accumulation and physiology were measured for the experimental evaluation. Correlations and principal components were estimated to study the traits’ interrelationships and identify the most important to assist progeny selection. The results revealed that, among the evaluated traits, ten were sufficient to explain the variability within the population and four were elected as the most relevant to select the best progenies. 75% of the genotypes showed tolerance to partial flooding and based on performance and plasticity, we selected G174, G48 and G56 for a broader spectrum and G44, G47 and G51 for hypoxic conditions only. The promising evidence pointed out here will need to be corroborated with field tests, so that the cupuassu tree can be recommended in the recovery of environments subject to hypoxia.

Resumo O sistema agroflorestal (SAF) à base de cupuaçu (Theobroma grandiflorum) pode ser utilizado para a recomposição da vegetação no entorno de nascentes e de matas ciliares de mananciais (rios, córregos, lagos, etc.), sujeitos a inundações constantes. Os objetivos deste estudo foram estudar a relação entre caracteres inmorfofisiológicos sob regime de alagamento, determinando quais os mais importantes para estudar a tolerância dos genótipos e para avaliar a habilidade de genótipos decupuaçuzeiro em expressar fenótipos alternativos e crescer de forma eficiente, para seleçãode materiais capazes de suportar condições de hipóxia. O experimento foi conduzido em casa de vegetação,em delineamento inteiramente casualizado, em esquema fatorial 16 x 2 (16progênies e dois regimes hídricos) e quatro repetições. Os tratamentos iniciaram seismeses após o transplante das mudas. Para a avaliação experimental, foram medidos 15 caracteres relacionados ao desenvolvimento vegetativo, ao acúmulo de biomassa e às variáveisfisiológicas. Correlações entre características e componentes principais foram estimadas para estudar as inter-relações das características e identificar as mais responsivas paraauxiliar na seleção de genótipos. Os resultados revelaram que, dentre as característicasutilizadas, dez foram suficientes para explicar a variabilidade dentro da população e quatro foramescolhidas para selecionar as melhores progênies. 75% dos genótipos apresentaramtolerância ao alagamento parcial e, com base no desempenho e na plasticidade, foram selecionados G174, G48 e G56 para um espectro mais amplo, e G44, G47 e G51 apenas para condições de hipóxia.As evidências promissoras aqui levantadas precisarão ser corroboradas, com arealização de testes de campo, para que o cupuaçuzeiro possa ser recomendado narecuperaçãode ambientes sujeitos à hipóxia.

https://doi.org/10.1590/0100-29452023948

10.

Academics knowledge about tooth bleaching: technical and ethical issues
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FLOR-RIBEIRO, Mariana Dias

; RODRIGUES, Natalia Simora

; CASTRO, Fabricio Luscino Alves de

; BARCELLOS, Daphne Camara

; PAZINATTO, Flávia Bittencourt

RGO - Revista Gaúcha de Odontologia

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2023, Volume 71 elocation e20230059

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT Objective: The aim of this study was to evaluate the level of knowledge of UFES dental students about home bleaching treatment. Methods: As a methodology, a descriptive and cross-sectional study was carried out through the application of practice to 109 students, containing questions about home tooth whitening, technical care and possible complications of the treatment. Data were tabulated and submitted to descriptive statistics. Results: Of the total number of students, 88.99% said they knew the factors that limit or contraindicate the bleaching treatment, 16.51% of students recognize hydrogen peroxide as a possible inducer of oral cancer, 30.27% of the students had their teeth whitened inside the University, 44.03% had their teeth whitened outside the University without professional supervision. In addition, 56.88% believe anamnesis and clinical examination are necessary before the bleaching treatment. Conclusion: It is concluded that students have limited knowledge about certain points of at-home tooth whitening. Students know the risk factors of bleaching treatment, except regarding hydrogen peroxide being a possible inducer of oral cancer. It can be inferred that academics highlight the importance of associating the clinical examination with the patient’s anamnesis before performing the bleaching treatment. Most students have had their teeth whitened outside the University, which calls attention to reinforce knowledge about the ethical issues of the profession.

RESUMO Objetivo: O objetivo deste estudo foi avaliar o nível de conhecimento dos acadêmicos de odontologia da UFES sobre o tratamento clareador caseiro. Métodos: Como metodologia, foi realizado um estudo descritivo e transversal por meio da aplicação de questionário a 109 estudantes contendo perguntas sobre o clareamento dental caseiro, cuidados técnicos e possíveis riscos do tratamento. Os dados foram tabulados e submetudos à estatística descritiva. Resultados: Do total de estudantes, 88,99% disse conhecer os fatores que limitam ou contraindicam o tratamento clareador; 16,51% dos estudantes reconhecem o peróxido de hidrogênio como possível indutor de câncer bucal; 30,27% dos estudantes realizaram o clareamento dental dentro da Universidade, 44,03% realizaram o clareamento dental fora da Universidade sem supervisão profissional. Além disso, 56,88% acreditam que são necessários anamnese e exame clínico antes de realizar o tratamento clareador. Conclusão: Conclui-se que os alunos têm conhecimento limitado sobre determinados pontos do clareamento dental caseiro. Os estudantes conhecem os fatores de risco do tratamento clareador, exceto a respeito do peróxido de hidrogênio ser um possível indutor de câncer bucal. Pode-se inferir que os acadêmicos relevam a importância da associação do exame clínico com a anamnese do paciente antes de se realizar o tratamento clareador. A maioria dos estudantes tem realizado o clareamento dental fora da Universidade, o que chama atenção para reforçar o conhecimento sobre as questões éticas da profissão.

https://doi.org/10.1590/1981-86372023005920230013

11.

Long-term Ecological Research: Chasing fashions or being prepared for fashion changes?
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BERGALLO, HELENA G.

; ROSA, CLARISSA

; OCHOA, ANA C.

; MANZATTO, ANGELO GILBERTO

; GUIMARAES, ARETHA F.

; BANHOS, AUREO

; CASTILHO, CAROLINA V.

; BARROS, CLAUDIA F.

; NORRIS, DARREN

; DRUCKER, DEBORA P.

; RODRIGUES, DOMINGOS J.

; BACCARO, FABRICIO B.

; LOURENÇO, IGOR H.

; ZUANON, JANSEN

; STEGMANN, LIS F.

; ANJOS, MARCELO R.

; SILVEIRA, MARCOS

; ARAÚJO, PATRICIA S.G.

; BOBROWIEC, PAULO E.D.

; FADINI, RODRIGO

; NECKEL-OLIVEIRA, SELVINO

; EMILIO, THAISE

; SANTORELLI JUNIOR, SERGIO

; MAGNUSSON, WILLIAM E.

Anais da Academia Brasileira de Ciências

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2023, Volume 95 N. 3 elocation e20230051

Abstract: En | Text: En | PDF: En

Abstract Long-term-ecological-research (LTER) faces many challenges, including the difficulty of obtaining long-term funding, changes in research questions and sampling designs, keeping researchers collecting standardized data for many years, impediments to interactions with local people, and the difficulty of integrating the needs of local decision makers with “big science”. These issues result in a lack of universally accepted guidelines as to how research should be done and integrated among LTER sites. Here we discuss how the RAPELD (standardized field infrastructure system), can help deal with these issues as a complementary technique in LTER studies, allowing comparisons across landscapes and ecosystems and reducing sampling costs. RAPELD uses local surveys to understand broad spatial and temporal patterns while enhancing decision-making and training of researchers, local indigenous groups and traditional communities. Sampling of ecological data can be carried out by different researchers through standardized protocols, resulting in spatial data that can be used to answer temporal questions, and allow new questions to be investigated. Results can also be integrated into existing biodiversity networks. Integrated systems are the most efficient way to save resources, maximize results, and accumulate information that can be used in the face of the unknown unknowns upon which our future depends.

https://doi.org/10.1590/0001-3765202320230051

12.

Brazilian guidelines on chronic venous disease of the Brazilian Society of Angiology and Vascular Surgery
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Kikuchi, Rodrigo

; Nhuch, Claudio

; Drummond, Daniel Autran Burlier

; Santiago, Fabricio Rodrigues

; Coelho Neto, Felipe

; Mauro, Fernanda de Oliveira

; Silveira, Fernando Trés

; Peçanha, Guilherme Peralta

; Merlo, Ivanesio

; Corassa, Jose Marcelo

; Stambowsky, Leonardo

; Figueiredo, Marcondes

; Takayanagi, Miriam

; Gomes Flumignan, Ronald Luiz

; Evangelista, Solange Seguro Meyge

; Campos Jr., Walter

; Joviliano, Edwaldo Edner

; Araujo, Walter Junior Boim de

; Oliveira, Julio Cesar Peclat de

Jornal Vascular Brasileiro

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2023, Volume 22 elocation e20230064

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract The Brazilian Society of Angiology and Vascular Surgery has set up a committee to provide new evidence-based recommendations for patient care associated with chronic venous insufficiency. Topics were divided in five groups: 1. Classification, 2. Diagnosis, 3. Conservative or non-invasive treatment, 4. Invasive treatment and 5. Treatment of small vessels. This last series is closely related to the activities of Brazilian angiologists and vascular surgeons, who are heavily involved in the treatment of small superficial veins. These guidelines are intended to assist in clinical decision-making for attending physicians and health managers. The decision to follow a guideline recommendation should be made by the responsible physician on a case-by-case basis taking into account the patient's specific condition, as well as local resources, regulations, laws, and clinical practice recommendations.

Resumo A Sociedade Brasileira de Angiologia e de Cirurgia Vascular organizou uma comissão para fornecer novas recomendações baseadas em evidências sobre questões críticas de atendimento ao paciente com insuficiência venosa crônica. São abordados aqui os temas de classificação, diagnóstico, tratamento conservador, tratamento invasivo e tratamento de pequenos vasos. Esta última série está muito relacionada à atividade de angiologistas e cirurgiões vasculares, que possuem forte atuação no tratamento de pequenas veias superficiais. Estas diretrizes destinam-se a auxiliar na tomada de decisões clínicas de médicos assistentes e gestores de saúde. A decisão de seguir uma recomendação de diretriz deve ser feita pelo médico responsável caso a caso, levando em consideração a condição específica do paciente, bem como recursos locais, regulamentos, leis e recomendações de prática clínica.

https://doi.org/10.1590/1677-5449.202300642

13.

Interrelationship between potassium rates and the efficiency of Bt genes in the control of Spodoptera frugiperda
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Faria, Marcelo Macedo

; Cintra, Pedro Henrique Nascimento

; Amorim, Víctor Alves

; Campos, Thiago Souza

; Rocha, Ednaldo Cândido

; Rodrigues, Fabricio

Pesquisa Agropecuária Brasileira

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2023, Volume 58 elocation e03241

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract The objective of this work was to identify the effect of potassium rates on Bt transgenic resistance and damage caused by Spodoptera frugiperda in corn plants at different developmental stages. The experimental design was a randomized complete block in a 3x6 factorial arrangement, with three potassium rates (0, 45, and 90 kg ha-1) and six corn hybrids (20A55Hx, 30A77PW, AG1051, MG652PW, NS90VTPro2, and NS92VTPro), with three replicates. The hybrids were evaluated through the analysis of canonical variables. With low potassium rates, the effectiveness of the corn hybrids in controlling the S. frugiperda caterpillar decreases in the different phenological stages. The use of the Bt technology is more efficient under an adequate potassium rate of 90 kg ha-1 KCl.

Resumo O objetivo deste trabalho foi identificar o efeito de doses de potássio sobre a resistência transgênica Bt e os danos causados por Spodoptera frugiperda em plantas de milho, em diferentes estádios de desenvolvimento. O delineamento experimental foi de blocos ao acaso, em arranjo fatorial 3x6, com três doses de potássio (0, 45 e 90 kg ha-1) e seis híbridos de milho (20A55Hx, 30A77PW, AG1051, MG652PW, NS90VTPro2 e NS92VTPro), com três repetições. Os híbridos foram avaliados por meio de análise de variáveis canônicas. Com doses baixas de potássio, a eficácia dos híbridos de milho no controle da lagarta S. frugiperda diminui nos diferentes estádios fenológicos. O uso da tecnologia Bt é mais eficiente quando sob dosagem adequada de potássio de 90 kg ha-1 KCl.

https://doi.org/10.1590/s1678-3921.pab2023.v58.03241

14.

Experiências de estudantes-treinadores em Educação Física: Uma perspetiva biográfica de aprendizagem
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Milan, Fabrício João

; Das Neves Salles, William

; Zeilmann Brasil, Vinicius

; de Andrade Rodrigues, Heitor

; Vieira do Nascimento, Juarez

; Milistetd, Michel

Revista Portuguesa de Educação

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dec 2022, Volume 35 N. 2 Pages 228 - 245

Abstract: Es Pt En | Text: Es Pt En | PDF: Es | PDF: Pt | PDF: En

Resumen El objetivo de este artículo es analizar las biografías de estudiantes-entrenadores matriculados en la disciplina de Práctica Curricular Supervisada (PCS) en Entrenamiento Deportivo de un curso Educación Física. Para alcanzar este objetivo, nuestra opción metodológica fue realizar entrevistas semiestructuradas a nueve estudiantes-entrenadores de un curso de Educación Física de una institución de enseñanza superior pública, utilizando como base la teoría del aprendizaje permanente de Peter Jarvis (2009b). Los resultados indicaron la necesidad de considerar las diferentes experiencias de vida de los estudiantes-entrenadores durante la PCS. Al comprender la trayectoria personal y deportiva de los estudiantes, la PCS se puede estructurar de manera que respete las expectativas de cada estudiante, fomentando su participación activa durante este importante momento formativo.

Resumo O objetivo deste artigo é analisar as biografias de estudantes-treinadores matriculados na disciplina de Estágio Curricular Supervisionado (ECS) em Treino Desportivo de um curso de Educação Física. Para atingir esse objetivo, optou-se por realizar entrevistas semiestruturadas com nove estudantes-treinadores do curso de Educação Física de uma instituição de ensino superior pública, utilizando como base a teoria de aprendizagem ao longo da vida de Peter Jarvis (2009b). Os resultados indicaram a necessidade de se considerar as distintas experiências de vida dos estudantes-treinadores durante o ECS. Ao se compreender a trajetória pessoal e desportiva dos estudantes, o ECS pode ser estruturado de modo a respeitar as expectativas de cada estudante, estimulando sua participação ativa durante este importante momento formativo.

Abstract The objective of this article is to analyse the biographies of student-trainers enrolled in the Supervised Internship (SI) discipline in Sports Coaches of a course in Physical Education. In order to reach this goal, our methodological option was to conduct semi-structured interviews with nine student-coaches of the Physical Education course at a public higher education institution, based on the theory of lifelong learning by Peter Jarvis (2009b). The results indicated the need to consider the different life experiences of student-coaches during SI. By understanding the students' personal and sporting trajectory, SI can be structured in a way that respects the expectations of each student, stimulating their active participation during this important formative moment.

https://doi.org/10.21814/rpe.18764

15.

Association between exposure to pesticides and allergic diseases in children and adolescents: a systematic review with meta-analysis
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Rodrigues, Marina de Barros

; Carvalho, Denise Siqueira de

; Chong-Silva, Débora Carla

; Urrutia-Pereira, Marilyn

; Albuquerque, Guilherme Souza Cavalcanti de

; Cieslak, Fabrício

; Chong Neto, Herberto José

Jornal de Pediatria

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dec 2022, Volume 98 N. 6 Pages 551 - 564

Abstract: En | Text: En | PDF: En

Abstract Objective: The study aimed to conduct a systematic review of the literature to verify the association between exposure to pesticides and allergic diseases (asthma, allergic rhinitis, and atopic dermatitis) in children and adolescents. Method: A systematic review and meta-analysis were performed using the PRISMA method with the question “What is the association between exposure to pesticides and allergic diseases in children (asthma, allergic rhinitis, and atopic dermatitis)?” MEDLINE, EMBASE, SciELO, and Cochrane electronic databases were searched throughout the period in the literature up to September 2020. A total of 1296 studies were found, and 24 were selected. Results: Exposure to pesticides showed a two-fold greater risk of developing or exacerbating asthma in children and adolescents (odds ratio [OR] = 2.14 95% confidence interval [CI] 1.26-3.64, p < 0.01). There was no association between exposure to pesticides and the development of allergic rhinitis (OR = 2.73, 95% CI 0.13-57.8, p = 0.52) and atopic dermatitis (OR = 2.19, 95% CI 0.51-9.36, p = 0.29). Conclusions: Exposure to pesticides increases the risk of developing or exacerbating asthma in children and adolescents. There was no evidence of an association between exposure to pesticides and the development of allergic rhinitis and atopic dermatitis in children and adolescents, possibly due to the low number of studies found in this review.

https://doi.org/10.1016/j.jped.2021.10.007

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