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ABSTRACT The influence of the soil cover of the watershed that contributes to a watershed on the Barra Grande Hydroelectric Power Plant reservoir (subtropical, elongated, and “canyon”) was carried out through mathematical modeling (MGB-IPH for flows, HEC-RAS for water quality, and IPH -ECO for reservoir simulation). Simulation modeling of land cover change showed that replacing forests with other uses caused an increase in flows and loads of total nitrogen and total phosphorus and replacing other uses with forests resulted in a reduction in flows and loads of total nitrogen and total phosphorus. The magnitude of the nutrient load anomaly is associated with the degree of alteration caused in the process of transforming precipitation into surface runoff, terrain slope, soil types, and land use practices. The watershed has shallow soils in 86% of its area, with steep slopes at the headwaters, which facilitates the flow into the reservoir. Positive anomalies were estimated when agriculture replaces other uses and negative anomalies when agricultural areas are replaced. The nutrient load that reaches the reservoir is related to the degree of change in the process of transforming precipitation into surface runoff, the slope of the terrain, the types of soil, and land use practices adopted. There is thermal stratification in the deepest portion, with mixing in winter, where the operation of the plant can influence the mixing in the water column, with opposite effect between the region close to the dam and the other regions further away from the dam, depending on the conditions of temperature, flow, and residence time. Knowledge of structure and function is important to improve reservoir management.

RESUMO A influência da cobertura/do uso do solo da bacia hidrográfica sobre o reservatório da Usina Hidrelétrica de Barra Grande (lago artificial alongado, profundo em ambiente de cânion) foi analisada por meio de modelagem matemática utilizando o modelo de grandes bacias (MGB-IPH) para estimativa de vazões, o HEC-RAS para qualidade da água e o IPH-ECO na simulação do reservatório. A modelagem da simulação da alteração da cobertura do solo mostrou que a substituição de florestas por outros usos causou aumento nas vazões e nas cargas de nitrogênio total e fósforo total, e a substituição de outros usos por florestas resultou em redução nas vazões e nas cargas de nitrogênio total e fósforo total. A magnitude da anomalia da carga de nutrientes está associada ao grau de alteração causado no processo de transformação da precipitação em escoamento superficial, à declividade do terreno, aos tipos de solo e às práticas de uso do solo. A bacia hidrográfica apresenta solos rasos em 86% de sua área, com declividades do terreno acentuadas nas cabeceiras, o que facilita o escoamento para o reservatório. Anomalias positivas foram estimadas quando agricultura substitui outros usos e anomalias negativas quando áreas de agricultura são substituídas. A carga de nutrientes que chega ao reservatório está relacionada ao grau de alteração no processo de transformação da precipitação em escoamento superficial, à declividade do terreno, aos tipos de solo e às práticas de uso do solo adotadas. Há estratificação térmica na porção mais profunda, com mistura no inverno, quando a operação da usina pode influenciar a mistura na coluna d’água, com efeito oposto entre a região próxima à barragem e as demais regiões mais distantes da barragem, dependendo das condições de temperatura, vazão e tempo de residência. Esse conhecimento é importante para a gestão do reservatório.

https://doi.org/10.1590/s1413-415220220057

The impact of the COVID-19 pandemic on dental trauma attendance: a systematic review and meta-analysis
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CAMPOS, Débora e Silva

; MUNIZ, Isis de Araújo Ferreira

; GOMES, Amanda Claudino

; BESERRA, Letícia Regina Marques

; SANTOS, Luyra Elyka Daniel dos

; BATISTA, André Ulisses Dantas

; GOMINHO, Luciana Ferraz

; SALAZAR-SILVA, Juan Ramon

; D’ASSUNÇÃO, Fábio Luiz Cunha

Journal of Applied Oral Science

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2023, Volume 31 elocation e20220374

Abstract: En | Text: En | PDF: En

Abstract This systematic review and meta-analysis aimed to analyze the impact of the COVID-19 pandemic on dental trauma patient attendance. The study was registered in the PROSPERO system, using the CRD42021288398 protocol. Searching was performed in PubMed, Scopus, Web of Science, Embase, Lilacs, and OpenGrey databases, using the following keywords: “Tooth injuries,” “Dental trauma,” “Traumatic Dental injury,” and “COVID-19". We included observational studies evaluating dental trauma in the context of the COVID-19 pandemic. Quality assessment was performed using the Joanna Briggs Institute Critical Appraisal Checklist for Cross-Sectional Studies. Meta-analysis was performed in RevMan 5.4 software with Odds Ratios as a pooled measure of effect, with a 95% confidence interval, and using random-effects modeling. After applying the eligibility criteria, 32 studies were included for qualitative analysis, in which 10 were used to assess the frequency of dental trauma diagnoses in dental emergencies. Despite the decrease of visits during COVID-19, the analysis revealed no difference between the pandemic and pre-pandemic periods. Regarding the type of dental trauma, two of the studies revealed no differences for the periods before and during the pandemic. This study revealed that the COVID-19 pandemic has not impacted the frequency or type of dental trauma compared to previous periods.

https://doi.org/10.1590/1678-7757-2022-0374

Evaluation of konjac noodle as a microsurgery training model: learning curve analysis
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AVELAR, TIAGO MARQUES

; LOVATO, RENAN MAXIMILIAN

; BARBOSA, THIAGO GOMES

; XANDER, PAULO ADOLFO WESSEL

; RODRIGUES, LEONARDO HENRIQUE DA SILVA

; CAMPOS, ADRIANA JOSE BRITO

; RIECHELMANN, RICARDO SALEMI

; FLORES, JUAN ANTONIO CASTRO

; AGUIAR, GUILHERME BRASILEIRO DE

; OLIVEIRA, JEAN GONÇALVES DE

; VEIGA, JOSÉ CARLOS ESTEVES

Revista do Colégio Brasileiro de Cirurgiões

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2023, Volume 50 elocation e20233528

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

ABSTRACT Background: classical models of microsurgical anastomosis training are expensive and have ethical implications. Some alternatives join low cost and easiness to store. However, the translation of knowledge acquired by training in these methods into the traditional ones is not clear. This project aims to assess the feasibility of konjac noodles as a reliable microsurgery-training model. Methods: 10 neurosurgery residents performed an end-to-end anastomosis in a 2-3mm placenta artery. The anastomoses were evaluated quantitatively, recording time; and qualitatively, applying a validated score (Anastomosis Lapse Index - ALI) by three experienced neurosurgeons and verifying the presence of gross leakage through the infusion of fluorescein. Subsequently, they performed 10 non-consecutive sessions of anastomosis training in the konjac noodle. Eventually, a final anastomosis in the placenta model was performed and the same parameters were scored. Results: we observed a 17min reduction in the mean time to perform the anastomosis in the placenta model after the training in the konjac (p<0.05). There was a non-significant 20% reduction in gross leakage, but the training sessions were not able to consistently improve the ALI score. Conclusions: we demonstrate a reduction in anastomosis performing time in placental arteries after training sessions in the konjac noodle model, which can be regarded as a feasible low-cost method, particularly useful in centers with surgical microscopes only in the operation room.

ABSTRACT Introdução: modelos tradicionais de treinamento de anastomose microcirúrgica costumam ter custos elevados e implicações éticas de aquisição e manutenção, buscando-se alternativas que reúnam baixo custo e facilidade de armazenamento. Existem diferentes propostas, porém há poucas evidências de que conhecimentos adquiridos com o treinamento nessas plataformas se traduza em melhora na performance, quando estes são comparados a modelos consagrados. Este projeto objetiva avaliar a viabilidade do macarrão de konjac como modelo confiável de treinamento microcirúrgico. Métodos: 10 residentes de neurocirurgia realizaram uma anastomose término-terminal em artéria placentária humana de 2-3mm. As anastomoses foram avaliadas quantitativamente, registrando-se o tempo de confecção e qualitativamente, aplicando-se um escore validado (Anastomosis Lapse Index – ALI) por neurocirurgiões experientes e verificando-se a presença de vazamento grosseiro através da visualização no modo fluorescente injetando-se fluoresceína. Subsequentemente, realizaram 10 sessões de treinamento não consecutivos de anastomose términoterminal no modelo de konjac. Por fim, uma anastomose final foi realizada no modelo placentário e os mesmo parâmetros reavaliados. Resultados: observamos uma redução de 17 min no tempo médio de confecção da anastomose no modelo de placenta após os treinos no modelo do macarrão (p<0.05). Houve uma redução não significativa de 20% no vazamento grosseiro. As sessões de treino no macarrão não foram capazes de melhorar consistentemente o score ALI. Conclusão: o treinamento em modelo de macarrão konjac é capaz de reduzir o tempo para realização das anastomoses no modelo em placenta humana, mostrando-se alternativa viável de baixo custo e manutenção, útil em serviços que disponham de microscópio apenas no ambiente cirúrgico.

https://doi.org/10.1590/0100-6991e-20233528-en

Projeções de vazão para avaliação de estimativa de carga de nutrientes afluentes à lagoa Mangueira, Rio Grande do Sul, em cenários de mudanças climáticas do Quinto Relatório de Avaliação das Mudanças Climáticas
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Felizzola, Nathalia Mendes

; Fernandes, Leonardo Facini

; Bravo, Juan Martin

; Sanagiotto, Daniela

; Rodrigues, Lúcia Helena Ribeiro

; Marques, David Manuel Lelinho da Motta

Engenharia Sanitaria e Ambiental

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oct 2022, Volume 27 N. 5 Pages 1007 - 1020

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

RESUMO As mudanças climáticas podem causar alterações drásticas nos ecossistemas lacustres especialmente em razão da elevação da temperatura e das alterações na precipitação, provocando, entre outros fatores, aumento no aporte de nutrientes e, consequentemente, eutrofização. Este trabalho apresenta a estimativa de projeções de vazão e carga de nutrientes (NO3−, PO4–3) afluentes à lagoa Mangueira — grande lagoa rasa subtropical localizada no extremo sul do Brasil. As projeções foram baseadas nos produtos do Quinto Relatório de Avaliação das Mudanças Climáticas (AR5), no Representative Concentration Pathway — RCP 2.6, RCP 4.5 e RCP 8.5. Em cada cenário, foram utilizados produtos de até 39 modelos climáticos globais para a estimativa das projeções das variáveis em dois períodos futuros de 30 anos, centrados em 2030 (próximo) e 2070 (longo). Os resultados mostram como situação mais provável o aumento das vazões, com maior concordância entre os produtos do AR5, quando comparados aos do Quarto Relatório de Avaliação das Mudanças Climáticas (AR4) estimados em trabalho anterior. Nas projeções de cargas de nutrientes também prevalece o padrão de aumento. Os nutrientes analisados apresentam elevação de carga média anual de 9,34% no futuro próximo e no RCP 2.6, enquanto no futuro longo e no RCP 8.5 esse valor se eleva para 22,48%. Medidas mitigadoras deverão ser previstas com o objetivo de reduzir a carga de nutrientes afluentes e manter o bom estado ecológico da lagoa.

ABSTRACT Climate change can cause drastic changes in lake ecosystems, especially due to the increase in temperature and changes in precipitation, promoting, among other factors, an increase in the nutrients input and, therefore, eutrophication. This paper estimated the projected flow and nutrients load (NO3−, PO4–3) at the Mangueira lake — a large subtropical shallow lake, located in southern Brazil. The projections were based on the AR5 products for RCP 2.6, RCP 4.5, and RCP 8.5 scenarios. In each scenario, data from as many as 39 global climate models were used to estimate the projected values of flow and nutrients in two 30-year time intervals centered at 2,030 (near future) and 2,070 (long future). Results show the increase in flow is more likely, with a greater agreement between AR5 products when compared to AR4 products estimated in previous work. The pattern of increase also prevails in the projections of nutrient loads. The nutrients analyzed show an average annual load increase of 9.34% in the near future and RCP 2.6 scenario, while in the long future and RCP 8.5 scenario, this value rises to 22.48%. Mitigation measures should be studied to reduce the nutrient inputs and to preserve a good ecological status of the lake.

https://doi.org/10.1590/s1413-415220210194

Effects of ergo-nutritional strategies on recovery in combat sports disciplines
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López-Laval, Isaac

; Marques-Jiménez, Diego

; Velarde-Sotres, Álvaro

; Sitko, Sebastian

; Calleja-González, Julio

; Mielgo-Ayuso, Juan

Nutrición Hospitalaria

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jun 2022, Volume 39 N. 3 Pages 652 - 662

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

Resumen Para mejorar el proceso de recuperación en las disciplinas deportivas de combate, las estrategias ergo-nutricionales son una opción eficaz en el entrenamiento y la competición. Algunas de estas alternativas mejoran el rendimiento, pero actualmente existe una escasa bibliografía con resultados controvertidos relacionados con el efecto de recuperación. Esta revisión sistemática tuvo como objetivo determinar qué estrategias ergo-nutricionales son más efectivas en los procesos de recuperación. Se llevó a cabo siguiendo las pautas Preferred Reporting Items for Systematic Review (PRISMA). Se realizó una búsqueda computarizada en PubMed, Web of Science, Cochrane Collaboration Database, Evidence Database, Evidence Based Medicine Search review, National Guidelines, EM-BASE, Scopus y el sistema Google Scholar (desde 1995 hasta el 30 de abril de 2021). Se utilizó el modelo PICOS para definir los criterios de inclusión y exclusión. De los 123 estudios encontrados inicialmente, 18 cumplieron los criterios de elegibilidad y fueron incluidos. Se examinaron datos de 367 atletas de diferentes disciplinas. La evidencia se agrupó en 4 áreas: estrés oxidativo, recuperación muscular y energética, reparación muscular y acidosis metabólica. La evidencia mostró que las vitaminas, los minerales y algunos productos ergo-nutricionales naturales son eficaces como antioxidantes, los hidratos de carbono y las proteínas determinan su efecto recuperador y el bicarbonato de sodio es el principal retardador metabólico de la acidosis. Se destaca la importancia de aceptar un plan ergo-nutricional para mejorar el proceso de recuperación. A pesar de ello, y teniendo en cuenta los efectos descritos en la literatura, se necesitan más estudios para reforzar la evidencia actual.

Abstract In order to improve the recovery process in combat sports disciplines, ergo-nutritional strategies could be an effective option in training and competition. Some of these ergo-nutritional aids could improve performance but literature references are scarce, with controversial results regarding actual recovery effects. This systematic review aimed to examine which ergo-nutritional methods are most effective for assisting in the recovery process in combat sports, and to determine the appropriate training stimuli. This systematic review was carried out following the Preferred Reporting Items for Systematic Review (PRISMA) guidelines. A computerized search was performed in PubMed, Web of Science, the Cochrane Collaboration Database, Evidence Database, Evidence Based Medicine Search review, National Guidelines, EM-BASE, Scopus and Google Scholar system (from 1995 to April 30, 2021). The PICOS model was used to define inclusion and exclusion criteria. Out of 123 studies initially found, 18 met the eligibility criteria and were included in the review. Data from 367 athletes from different disciplines were examined. The evidence was grouped in 4 areas: oxidative stress, muscle and energy recovery, muscle repair, and metabolic acidosis. Evidence showed that vitamins, minerals, and some natural ergo-nutritional products are effective as antioxidants. Carbohydrates and protein determine the recovery effect. Sodium bicarbonate has a role as primary acidosis metabolic delayer. Accordingly, ergo-nutritional aids can help in the recovery process. Considering the effects outlined in the literature, more studies are needed to provide firm evidence.

https://doi.org/10.20960/nh.03886

Brazilian scenario of inoculant production: A look at patents
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Oliveira, Augusto Matias de

; Costa, Márcia Regina da

; Grazziotti, Paulo Henrique

; Abreu, Caique Menezes de

; Bispo, Nicarla da Silva

; Roa, Juan Pedro Bretas

; Silva, Diana Marques

; Miranda, Jarbas Magno

Revista Brasileira de Ciência do Solo

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2022, Volume 46 elocation e0210081

Abstract: En | Text: En | PDF: En

ABSTRACT Technological advances have demonstrated the need for intellectual property rights, and patent granting is one of its most widespread forms. This includes the protection of inoculant formulations for agriculture, in which Brazil is a leader. This study aimed to analyze the number of patents for formulations of biological inoculants for agriculture in Brazil and the microorganisms used. An advanced search was performed in the National Institute of Industrial Property database, using the title and abstract fields. The indexers included inoculant, bioinoculant, endophyte, endophytic, fungus, bacteria, Rhizobium, Azospirillum and Gluconacetobacter. The inoculant formulation patents were grouped by the number of files per decade, number of patents per holder(s), characterization of granted patents, international patent classification, and main genera of fungi and bacteria used in inoculant formulations per decade. The number of patents filed for inoculant formulations in the last four decades increased from 7 in the first decade (1981–1990) to 37 from 2011–2020. In the first decades of study, the use of Rhizobium in inoculants stood out, followed by other genera of fungi and bacteria. However, most inoculant patent applications are still denied, considering data from 1981 to 2020. This may be partially due to the low reproducibility of inoculant results, as microorganism activity is highly affected by climate, soil, plant cultivars and crop management. The percentage of acceptance equal to or higher than 50 % in the number of applied patents for using endophytic microorganisms may be because this group of microorganisms acts mainly inside plants and is thus more protected from the influence of climate and some soil and management factors. The growing number of patent applications in the last 40 years demonstrates the business and technological development interest in inoculants in Brazil.

https://doi.org/10.36783/18069657rbcs20210081

Synoptic patterns of South Atlantic Convergence Zone episodes associated with heavy rainfall events in the city of Rio de Janeiro, Brazil
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Escobar, Gustavo Carlos Juan

; Marques, Ana Clara de Almeida

; Dereczynski, Claudine Pereira

Atmósfera

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2022, Volume 35 N. 2 Pages 287 - 305

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

ABSTRACT The present study provides a synoptic characterization of South Atlantic Convergence Zone (SACZ) episodes that caused heavy rainfall events (HRE) in the city of Rio de Janeiro (CRJ) between 2006 and 2016. A total of 77 SACZ episodes were identified in the CRJ (SCRJ), which represented 81% of the total SACZ events in Brazil. At least one day of HRE during the SACZ period (SHRE) was found in 37 SCRJ episodes, representing almost half (48%) of the SACZ events in the CRJ. In 68.6% of these cases, the heavy rainfall occurred on the first two days of the SHRE period. The mean synoptic pattern of SHRE showed a cold front in the Atlantic Ocean connected with a low-pressure system located near the coast of Rio de Janeiro state (RJ). The 850 hPa specific humidity showed a dipole pattern with positive anomalies in southeastern Brazil and negative anomalies in southern Brazil since the day before the occurrence of SHRE. An anomalous upper-level ridge in southeastern Brazil was relevant to intensifying the heavy rainfall in the CRJ. The synoptic classification showed four main surface synoptic patterns associated with SHRE. The two most frequent patterns were associated with a cold front close to the coast of RJ, and the other two were related to the presence of an anticyclone with blocking characteristics and to the presence of a weak extratropical cyclone near the coast of RJ.

RESUMEN El presente estudio presenta una caracterización sinóptica de los episodios de la Zona de Convergencia del Atlántico Sur (ZCAS) que causaron eventos de lluvia fuerte (ELF) en la ciudad de Río de Janeiro (CRJ) entre 2006 y 2016. Se identificaron 77 episodios de ZCAS en la CRJ (ZCRJ), que representaron el 81% del total de eventos de ZCAS en Brasil. Se encontró un total de 37 episodios de ZCRJ con al menos un día de ELF durante el período que duró el evento (ZELF), representando casi la mitad (48%) de los eventos de ZCAS en la CRJ. En el 68.6% de estos casos, los ELF ocurrieron en los dos primeros días del evento de ZELF. El patrón sinóptico medio asociado con ZELF mostró un frente frío en el Océano Atlántico conectado con un sistema de baja presión ubicado cerca de la costa del estado de Río de Janeiro (RJ). La humedad específica en 850 hPa mostró un patrón de dipolo con anomalías positivas en el sureste de Brasil y anomalías negativas en el sur de Brasil, desde el día anterior a la ocurrencia del ZELF. La presencia de una cresta anómala en niveles superiores en el sureste de Brasil fue determinante para intensificar las fuertes lluvias en la CRJ. La clasificación sinóptica mostró cuatro patrones de superficie principales asociados con ZELF. Los dos patrones más frecuentes se asociaron con un frente frío cerca de la costa del estado de RJ y los otros dos se relacionaron con la presencia de un anticiclón con características de bloqueo y con la presencia de un ciclón extratropical débil cerca de la costa del estado de RJ, respectivamente.

https://doi.org/10.20937/atm.52942 19 downloads

Definition of water quality variability parameters and dynamics to improve management in a deep canyon type subtropical hydroelectric reservoir
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Guedes, Damião Maciel

; Rodrigues, Lucia Ribeiro

; Bravo, Juan Martin

; Marques, David Manuel Lelinho da Motta

; Fragoso Júnior, Carlos Ruberto

; Cavalcanti, José Rafael

; Nascimento, Glaucia

RBRH

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2022, Volume 27 elocation e13

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

RESUMO Os padrões de variabilidade espacial e temporal da qualidade da água foram avaliados através de coletas mensais de amostras de água (superfície, subsuperfície e fundo) de 2005 a 2012. A Análise de Componentes Principais foi utilizada para definir a importância relativa de cada variável e Anova (bidirecional) para analisar a significância das diferenças na qualidade da água no eixo longitudinal do reservatório. As variáveis: turbidez, transparência de Secchi, tempo de residência e temperatura têm maior importância na qualidade da água. Foram observados gradientes espaciais e temporais, relacionados aos processos de circulação, sedimentação e ressuspensão, e a influência da baixa vazão, alto tempo de residência e mistura invernal da coluna d'água na ciclagem de sólidos e nutrientes pode explicar a variação desses processos. A utilização de métodos de análise estatística multivariada forneceu informações importantes para a compreensão desses processos, auxilia na interpretação de dados complexos para melhorar o monitoramento e uso das informações para os tomadores de decisão.

ABSTRACT Spatial and temporal variability patterns of water quality were evaluated through monthly collection of water samples (surface, sub-surface and bottom) from 2005 to 2012. Principal Component Analysis was used to define the relative importance of each variable and Anova (two way) to analyze the significance of differences in water quality in the longitudinal axis of the reservoir. The variables: turbidity, Secchi transparency, residence time and temperature have greater importance on water quality. It was observed spatial and temporal gradients, related to the circulation, sedimentation and resuspension processes, and the influence of low flow, high residence time and winter mixing of water column on the cycling of solids and nutrients may explain the variation in these processes. The use of multivariate statistical analysis methods provided important information to understand these processes, it helps the interpretation of complex data to improve monitoring, and use of information to decision makers.

https://doi.org/10.1590/2318-0331.272220210126

Brazilian medical education and the incorporation of technologies before and during the COVID-19 pandemic
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Barbosa Galvão, Maria Cristiane

; Marques Ricarte, Ivan Luiz

; Darsie, Camilo

; Barros Ferreira, Janise Braga

; Yazlle Rocha, Juan Stuardo

; Carneiro, Marcelo

; dos Santos Sampaio, Samára

; Cassanho Forster, Aldaísa

Revista Cubana de Información en Ciencias de la Salud

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2022, Volume 33 elocation e1836

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

RESUMEN Durante la pandemia de COVID-19, se intensificó el uso de tecnologías de la información y la comunicación (TIC). Este estudio tuvo como objetivo investigar la incorporación de las TIC en el proceso de enseñanza-aprendizaje por parte de docentes, estudiantes de grado y posgrado de Medicina de instituciones públicas y privadas brasileñas, antes y durante la pandemia de COVID-19. Se adoptó una encuesta transversal para esta investigación, con recolección de datos, realizada de mayo a septiembre de 2020. Los datos fueron analizados mediante estadística descriptiva y análisis temático. Participaron 242 personas: 153 estudiantes de pregrado, 19 estudiantes de posgrado y 70 profesores. Los participantes consideraron que el apoyo brindado por sus instituciones educativas en 2020 para el uso de las TIC fue "bueno" (44,2 %, 107/242) o "excelente" (22,3 %, 54/242). Las tecnologías más utilizadas en 2020 fueron los entornos de aprendizaje virtual (79,8 %, 193/242) y las videoconferencias (77,7 %, 188/242). La mayoría de los encuestados prefiere la modalidad "presencial" (50,4 %, 122/242), seguida de los que prefieren el uso ocasional de las TIC (22,3 %, 54/242). Los participantes registraron 171 percepciones relacionadas con el uso de las TIC como recurso pedagógico y su importancia durante la pandemia. Los participantes reconocieron el uso complementario de las TIC en sus actividades académicas y consideraron que el apoyo institucional fue adecuado. No se informaron dificultades financieras, pero los participantes mencionaron la falta de formación y el uso limitado de las TIC en actividades prácticas.

ABSTRACT During the COVID-19 pandemic, the use of information and communication technologies (ICT) was intensified. This study aimed to investigate the incorporation of ICT in the teaching-learning process by teachers, undergraduate and graduate Medicine students from Brazilian public and private institutions, before and during the COVID-19 pandemic. Cross-sectional survey was used to perform this research, with data collection carried out from May to September 2020. Data were analyzed using descriptive statistics and thematic analysis. There were 242 participants: 153 undergraduate students, 19 graduate students, and 70 faculty members. The participants considered that the support provided by their educational institutions in 2020 for the use of ICT was ‘good’ (44.2%, 107/242) or ‘excellent’ (22.3%, 54/242). The technologies most often used in 2020 were virtual learning environments (79.8%, 193/242) and videoconferences (77.7%, 188/242). The majority of respondents prefer the ‘classroom-based’ modality (50.4%, 122/242), followed by those who prefer the occasional use of ICT (22.3%, 54/242). The participants registered 171 perceptions related to the use of ICT as a pedagogical resource and its importance during the pandemic. The respondents recognized the complementary use of ICT in their academic activities and considered that the institutional support was adequate. No financial difficulties were reported, but participants mentioned lack of training and limited use of ICT in practical activities. To overcome such gaps, the use of ICT should take into account preferences and specificities of medical education, for which institutions have to prepare themselves pedagogically.

10.

Diretrizes Brasileiras de Hipertensão Arterial – 2020
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Barroso, Weimar Kunz Sebba

; Rodrigues, Cibele Isaac Saad

; Bortolotto, Luiz Aparecido

; Mota-Gomes, Marco Antônio

; Brandão, Andréa Araujo

; Feitosa, Audes Diógenes de Magalhães

; Machado, Carlos Alberto

; Poli-de-Figueiredo, Carlos Eduardo

; Amodeo, Celso

; Mion Júnior, Décio

; Barbosa, Eduardo Costa Duarte

; Nobre, Fernando

; Guimarães, Isabel Cristina Britto

; Vilela-Martin, José Fernando

; Yugar-Toledo, Juan Carlos

; Magalhães, Maria Eliane Campos

; Neves, Mário Fritsch Toros

; Jardim, Paulo César Brandão Veiga

; Miranda, Roberto Dischinger

; Póvoa, Rui Manuel dos Santos

; Fuchs, Sandra C

; Alessi, Alexandre

; Lucena, Alexandre Jorge Gomes de

; Avezum, Alvaro

; Sousa, Ana Luiza Lima

; Pio-Abreu, Andrea

; Sposito, Andrei Carvalho

; Pierin, Angela Maria Geraldo

; Paiva, Annelise Machado Gomes de

; Spinelli, Antonio Carlos de Souza

; Nogueira, Armando da Rocha

; Dinamarco, Nelson

; Eibel, Bruna

; Forjaz, Cláudia Lúcia de Moraes

; Zanini, Claudia Regina de Oliveira

; Souza, Cristiane Bueno de

; Souza, Dilma do Socorro Moraes de

; Nilson, Eduardo Augusto Fernandes

; Costa, Elisa Franco de Assis

; Freitas, Elizabete Viana de

; Duarte, Elizabeth da Rosa

; Muxfeldt, Elizabeth Silaid

; Lima Júnior, Emilton

; Campana, Erika Maria Gonçalves

; Cesarino, Evandro José

; Marques, Fabiana

; Argenta, Fábio

; Consolim-Colombo, Fernanda Marciano

; Baptista, Fernanda Spadotto

; Almeida, Fernando Antonio de

; Borelli, Flávio Antonio de Oliveira

; Fuchs, Flávio Danni

; Plavnik, Frida Liane

; Salles, Gil Fernando

; Feitosa, Gilson Soares

; Silva, Giovanio Vieira da

; Guerra, Grazia Maria

; Moreno Júnior, Heitor

; Finimundi, Helius Carlos

; Back, Isabela de Carlos

; Oliveira Filho, João Bosco de

; Gemelli, João Roberto

; Mill, José Geraldo

; Ribeiro, José Marcio

; Lotaif, Leda A. Daud

; Costa, Lilian Soares da

; Magalhães, Lucélia Batista Neves Cunha

; Drager, Luciano Ferreira

; Martin, Luis Cuadrado

; Scala, Luiz César Nazário

; Almeida, Madson Q.

; Gowdak, Marcia Maria Godoy

; Klein, Marcia Regina Simas Torres

; Malachias, Marcus Vinícius Bolívar

; Kuschnir, Maria Cristina Caetano

; Pinheiro, Maria Eliete

; Borba, Mario Henrique Elesbão de

; Moreira Filho, Osni

; Passarelli Júnior, Oswaldo

; Coelho, Otavio Rizzi

; Vitorino, Priscila Valverde de Oliveira

; Ribeiro Junior, Renault Mattos

; Esporcatte, Roberto

; Franco, Roberto

; Pedrosa, Rodrigo

; Mulinari, Rogerio Andrade

; Paula, Rogério Baumgratz de

; Okawa, Rogério Toshiro Passos

; Rosa, Ronaldo Fernandes

; Amaral, Sandra Lia do

; Ferreira-Filho, Sebastião R.

; Kaiser, Sergio Emanuel

; Jardim, Thiago de Souza Veiga

; Guimarães, Vanildo

; Koch, Vera H.

; Oigman, Wille

; Nadruz, Wilson

Arquivos Brasileiros de Cardiologia

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mar 2021, Volume 116 N. 3 Pages 516 - 658

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

https://doi.org/10.36660/abc.20201238 10948 downloads

11.

Differential responses of dwarf cashew clones to salinity are associated to osmotic adjustment mechanisms and enzymatic antioxidative defense
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ALENCAR, NARA LÍDIA M.

; OLIVEIRA, ALEXANDRE B. DE

; ALVAREZ-PIZARRO, JUAN C.

; MARQUES, ELTON C.

; PRISCO, JOSÉ T.

; GOMES-FILHO, ENÉAS

Anais da Academia Brasileira de Ciências

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2021, Volume 93 N. 1 elocation e20180534

Abstract: En | Text: En | PDF: En

Abstract This study evaluate growth, gas exchange, solute accumulation and activity of antioxidant enzymes in dwarf cashew clones subjected to salinity. Shoot dry mass reduced 26.8% (CCP06) and 41.2% (BRS189) at 16 dS m-1, concerning control. For net photosynthesis, CCP06 and BRS189 presented 69.8% and 34.7% of reduction, respectively. Na+ and Cl- contents increased in leaves and roots, in both clones, although CCP06 leaves presented Na+ concentrations lower than those of BRS189, the first one was the clone that the most accumulated such toxic ion, whereas K+ content remained almost unchanged for both clones. Soluble N-amino was the organic solute that more varied with salinity in cashew seedlings. Salt stress increased the activity of superoxide dismutase in both clones, mainly 16 dS m-1 treatment. Additionally, salinity promoted increases in ascorbate and guaiacol peroxidase activities, and the last enzyme was the main involved in H2O2 removal. Despite the reductions in growth and gas exchange, dwarf cashew seedlings of both clones presented an osmotic adjustment mechanism, and an efficient enzymatic antioxidant system that were able to attenuate the salt and oxidative stress, respectively. Our research suggested that BRS189 clone is more tolerant to salt stress than CCP06.

https://doi.org/10.1590/0001-3765202120180534 409 downloads

12.

Revisores 2021
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Hoffmann, Agustín Freiberg

; Araiza, Alejandra

; Bernal, Alejandro César Luna

; González, Alicia Isabel Migliaro

; Moreno, Amparo

; Malajovich, Ana

; Ramos, Ana Consuelo

; Lacombe, Andrea

; Treichel, Carlos Alberto dos Santos

; Valdiviano, Carlos Bacilio De La Cruz

; Baroni, Cecilia

; Cracco, Cecilia

; López-Steinmetz, Cecilia

; Marotta, Cecilia

; Ball, César Daniel Costa

; Maldonado, Daniela Patricia Ado

; Trías, Daniel

; Mola, Débora

; Loureto, Diego L.

; Hill-Denee, Diti

; Angeriz, Esther

; Ferrer, Fabiana Espíndola

; Rada, Fernando

; Novoa, Gabriela

; Ariza, Gladys Rocio

; Albistur, Gerardo

; Zambrano, Henry Guillén

; Simkin, Hugo

; Oliveira, Isabel C.V. de

; Janeiro, Isabel

; Janer, Jader

; Sánchez, Javier

; Dapueto, Juan

; Ortega, Lenise Maria Ribeiro

; Crespi, Leonardo Peluso

; Funcasta, Lorena

; Furlán, Luis

; Isidório, Marcelo dos Santos

; Nemes, María Ines Baptistella

; Ayan, María Noel Rodriguez

; Brenlla, María Elena

; Civarolo, María Mercedes

; Chavannes, María Ana Folle

; Hidalgo, María Teresa

; Gonzalez, María Julia Morales

; Palermo, Marina Míguez

; Verde, Mario Javier Luzardo

; Ferreira, Mayrla Andrade

; Brunet, Nicolás

; Núñez, Nicolás Gómez

; Correa, Pablo Sebastián

; Garzaniti, Ramiro

; Condeza, Rayen

; Rodrigues, Rogério

; Bustos, Romina

; Saldívar, Rosa María Cueto

; Moncada, Saul

; Marques, Stela

; Oliveira, Sueli Machado Pereira de

; Pribisev-Beleslin, Tamara

; Paz, Valentina

; Gradin, Victoria Beatriz

; Ortuño, Victor E.C.

Psicología, Conocimiento y Sociedad

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2021, Volume 11 N. 3 Pages 139 - 142

Abstract: Es | Text: Es | PDF: Es

https://doi.org/10.26864/pcs.v11.n3.rev

13.

Evaluation of the injuries caused by Pachycoris torridus (Scopoli, 1772) (Hemiptera: Scutelleridae) in Jatropha curcas (Linnaeus) (Euphorbiaceae)
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Fregadolli, Andrea Marques Vanderlei

; Pires, Edjane Vieira

; Endres, Laurício

; Fregadolli, Fábio Luiz

; Ramos, Juan Manuel Perez

; Ferreira, Paulo Vanderlei

Revista Ceres

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apr 2020, Volume 67 N. 2 Pages 119 - 125

Abstract: En | Text: En | PDF: En

ABSTRACT The Jatropha curcas species is a perennial plant and easy to manage, being cultivated in many countries because of its high content in oil and the lowest cost of production. This study had as objective to evaluate the injuries caused by the Pachycoris torridus in J. curcas seedlings. Thirty-four days after the planting, 30 J. curcas seedlings were covered with screens and submitted to herbivory of five bugs of the same sex. Morphological and physiological evaluations were conducted 65 days after planting. Seventy-three days after planting, 24 seedlings were submitted to herbivory, using the same methodology as the previous experiment with a quantitative differential of 10 bugs and a batch of 6 plants without insects (control). Evaluations were done 104 days after planting. Male adults (n = 5) of the P. torridus species caused a reduction in the growth and biomass increase in J. curcas seedlings 34 days after planting. After 30 days of herbivores, however the same injuries were not observed in seedlings with 73 days after planting. The injuries (34 days after planting) were considered mild and there was a decrease in the growth and in the biomass accumulation. Upon reaching 73 days after planting, the seedlings became more resistant to the attack of this pest, in such a way that as submitting them to twice the number of insects (n = 10), they did not negatively responded to the herbivory. Finally, the young seedlings were more susceptible to attack, even with low levels of infestation. The pest control should be done when there are signs of infestation at this stage.

https://doi.org/10.1590/0034-737x202067020004 446 downloads

14.

Influência da fonte de carbono nas propriedades de híbridos Ni/Carbono preparados por carbonização hidrotérmica e tratamento térmico e utilizados como suportes para eletrocatalisadores PtRu/C
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Tusi, Marcelo Marques

; Cancian, Ricardo

; Polanco, Nataly Soares de Oliveira

; Villalba, Juan Carlo

; Anaissi, Fauze Jaco

; Oliveira Neto, Almir

; Spinacé, Estevam Vitório

Matéria (Rio de Janeiro)

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2020, Volume 25 N. 4 elocation e-12900

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

RESUMO Neste trabalho, híbridos Ni/Carbono foram preparados em duas etapas (carbonização hidrotérmica e tratamento térmico a 900 °C sob argônio) a partir de diferentes fontes de carbono: glicose, amido e celulose. Eletrocatalisadores PtRu/C foram preparados pelo método da redução por álcool utilizando os híbridos como suportes. Os materiais foram caracterizados por espectroscopia por energia dispersiva de raios-X (EDX), análise termogravimétrica (TGA), espectroscopia no infravermelho com transformada de Fourier (FTIR), isotermas de B.E.T., difração de raios-X (DRX), microscopia eletrônica de transmissão (TEM) e voltametria cíclica em meio ácido. A eletro-oxidação do metanol foi estudada por cronoamperometria. O eletrocatalisador PtRu/C preparado utilizando o híbrido sintetizado a partir da celulose apresentou uma eletroatividade levemente superior aos demais materiais obtidos.

ABSTRACT In this work, Ni/Carbon hybrids were prepared in two steps (hydrothermal carbonization and thermal treatment at 900 °C under argon atmosphere) using different carbon souces: glucose, starch and cellulose. PtRu/C electrocatalysts were prepared by an alcohol-reduction process using the hybrids as support. The materials were characterized by energy-dispersive X-ray spectroscopy (EDX), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), B.E.T isotherms, X-ray diffraction (XRD), transmission electron microscope (TEM) and cyclic voltammetry (CV) in acidic medium. The electro-oxidation of methanol was studied by chronoamperometry. The PtRu/C electrocatalyst prepared using the hybrid synthesized from cellulose showed an electroactivity slightly superior compared to other obtained materials.

https://doi.org/10.1590/s1517-707620200004.1200 217 downloads

15.

Phaseolus vulgaris en el tratamiento de suelo un agrícola contaminado por hidrocarburos
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Marques-Benavides, Liliana

; Modesto-Sánchez, Diana

; Saucedo-Martínez, Blanca Celeste

; Rico-Cerda, José Luis

; Bribiesca-Rodríguez, Lilian

; Sánchez-Yáñez, Juan Manuel

Journal of the Selva Andina Research Society

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2020, Volume 11 N. 2 Pages 94 - 102

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

En suelo la contaminación por una mezcla de hidrocarburos como el aceite residual automotriz (ARA), inhibe la mineralización de la materia orgánica y causa perdida de su fertilidad. Una alternativa de solución es el enriquecimiento del suelo y plantas que lo eliminen a una cantidad inferior de 4400 ppm, valor máximo aceptado por la regulación en México conocida como NOM-138-SEMARNAT/SSA1-2003. El objetivo de este trabajo fue el tratamiento de suelo contaminado por 35000 ppm ARA con P. vulgaris inoculado con A. vinelandii y P. polymyxa para decrecer el ARA a un valor menor al máximo aceptado de la NOM-138. Las variables respuestas para determinar la recuperación del suelo en este ensayo fueron a) la concentración inicial y final de ARA por Soxhlet, y en b) P. vulgaris: el porcentaje (%) de germinación, en la fenología: altura de planta, longitud de raíz, y la biomasa: peso fresco y seco, aéreo y radical a plántula y prefloración. Los datos experimentales fueron analizados por Tukey 0.05%. Los resultados indican que el enriquecimiento del suelo, facilito que P. vulgaris con A. vinelandii y P. polymyxa a prefloración, decrecieran el ARA a 1152 ppm, valor menor al máximo aceptado por la NOM-138 para la recuperación de la fertilidad de ese suelo.

A soil polluted by waste motor oil (WMO) is inhibiting organic matter mineralization and caused losing its fertility. An alternative solution is to enrich soil and a plant to eliminate WMO at concentration value lower than 4400 ppm, maximum value accepted by the Mexican environmental regulation called NOM-138-SEMARNAT/SSA1-2003 (NOM-138). The objective of this research was to treat a soil polluted by 35,000 ppm of WMO with Phaseolus vulgaris inoculated with Azotobacter vinelandii and Paenibacillus polymyxa to reduce the WMO´s concentration at lower value than the maximum accepted by the NOM-138. The variable responses for recovering soil ‘fertility of this experiment was a) the initial and final concentration of WMO by Soxhlet, and b) for P. vulgaris the percentage (%) of germination, the phenology: height of plant, length of root; and biomass: aereal and radical fresh/dry weight at seedlings and reflooring stages. Experimental data were analyzed by Tukey 0.05%. Results showed that soil enriched to facilitate that P. vulgaris with A. vinelandii and P. polymyxa at e-flowering, could reducing ARA until 1152 ppm, lower concentration than the maximum allowed by NOM-138 for recovering soil´s fertility.

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