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Abstract Given the environmental impacts associated with the production of conventional Portland cement, the study of special cements with reduced environmental impact has been a trend. In this context, cements containing ye'elimite (YCC) stand out due to their low CO 2 emissions. Despite the environmental advantages, the high demand for aluminum economically limits the production of these cements.An alternative to making its production feasible is using residual raw materials as a source of Al 2 O 3 , such as SFCC (spent fluidized catalytic cracking).In view of this, this work aims to evaluate hydration at the initial age of cements. For this, six clinkers were produced with different ye'elimite contents, with and without SFCC. These were characterized by XRD/Rietveld. The pastes were evaluated by TG/DTG and XRD/Rietveld to understand the hydration mechanism on the third day of these cements. It was possible to synthesize the main phases of YCC, in clinkers with and without SFCC. In addition, at the age evaluated, the pastes with and without SFCC presented comparable phase composition, indicating the potential for co-processing this residue.

Resumo Diante dos impactos ambientais associados à produção do cimento Portland convencional, o estudo de cimentos especiais de reduzido impacto ambiental tem sido uma tendência. Neste contexto, os cimentos contendo ye’elimita (YCC) se destacam devido à baixa emissão de CO2. Apesar das vantagens ambientais, a alta demanda por alumínio limita economicamente a produção destes cimentos. Uma alternativa para viabilizar a sua produção é o uso de matérias-primas residuais como fonte de Al2O3, a exemplo do SFCC (catalizador gasto do craqueamento catalítico de leito fluidizado). Diante disso, este trabalho tem como objetivo avaliar a hidratação na idade inicial de cimentos YCC produzidos a partir do coprocessamento do SFCC. Para isso, foram produzidos seis clínqueres com diferentes teores de ye’elimita, com e sem SFCC. Estes foram caracterizados por DRX/Rietveld. As pastas foram avaliadas por TG/DTG e DRX/Rietveld para compreender o mecanismo de hidratação em idade inicial destes cimentos. Foi possível sintetizar as principais fases dos YCC, nos clínqueres com e sem SFCC. Além disso, na idade avaliada, as pastas com e sem SFCC apresentaram composição de fases comparáveis indicando o potencial de coprocessamento do SFCC neste tipo de cimento.

https://doi.org/10.1590/s1678-86212024000100711

[SciELO Preprints] - Guidelines on the Diagnosis and Treatment of Hypertrophic Cardiomyopathy – 2024
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Fernandes, Fabio Simões, Marcus V. Correia, Edileide de Barros Marcondes-Braga, Fabiana G. Coelho-Filho, Otavio Rizzi Mesquita, Cláudio Tinoco Mathias-Junior, Wilson Rochitte, Carlos Eduardo Ramires, Felix José Alvarez Alves, Silvia Marinho Martins Montera, Marcelo Westerlund Lopes, Renato Delascio Oliveira-Junior, Mucio Tavares Scolari, Fernando L. Avila, Walkiria Samuel Canesin, Manoel Fernandes Bacal, Fernando Bocchi, Edimar Alcides Moura, Lídia Ana Zytynski Saad, Eduardo Benchimol Scanavacca, Mauricio I. Valdigem, Bruno Pereira Cano , Manuel Nicolas Abizaid , Alexandre Ribeiro, Henrique Barbosa Lemos-Neto, Pedro Alves Ribeiro, Gustavo Calado de Aguiar Jatene, Fabio Biscegli Dias, Ricardo Ribeiro Beck-da-Silva, Luis Rohde, Luis Eduardo P. Bittencourt, Marcelo Imbroinise Pereira, Alexandre Krieger, José Eduardo Villacorta, Humberto Martins, Wolney de Andrade Figueiredo-Neto, José Albuquerque de Cardoso , Juliano Novaes Pastore, Carlos Alberto Jatene, Ieda Biscegli Tanaka, Ana Cristina Sayuri Hotta, Viviane Tiemi Romano, Minna Moreira Dias Albuquerque, Denilson Campos de Mourilhe-Rocha, Ricardo Hajjar, Ludhmila Abrahão Brito, Fabio Sandoli de Caramelli , Bruno Calderaro, Daniela Farsky, Pedro Silvio Colafranceschi , Alexandre Siciliano Pinto, Ibraim Masciarelli Vieira , Marcelo Luiz Campos Danzmann, Luiz Claudio Barberato , Silvio Henrique Mady, Charles Martinelli-Filho, Martino Torbey , Ana Flavia Malheiros Schwartzmann, Pedro Vellosa Macedo, Ariane Vieira Scarlatelli Ferreira , Silvia Moreira Ayub Schmidt, Andre Melo , Marcelo Dantas Tavares de Lima-Filho, Moysés Oliveira Sposito, Andrei C. Brito, Flavio de Souza Biolo, Andreia Madrini-Junior, Vagner Rizk, Stéphanie Itala Mesquita, Evandro Tinoco

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Publication date: 2024-04-08

Abstract: Pt Es En

A cardiomiopatia hipertrófica (CMH) é uma forma de doença do músculo cardíaco de causa genética, caracterizada pela hipertrofia das paredes ventriculares. O diagnóstico requer detecção por métodos de imagem (Ecocardiograma ou Ressonância Magnética Cardíaca) de qualquer segmento da parede do ventrículo esquerdo com espessura > 15 mm, sem outra causa provável. A análise genética permite identificar mutações de genes codificantes de diferentes estruturas do sarcômero responsáveis pelo desenvolvimento da CMH em cerca de 60% dos casos, permitindo o rastreio de familiares e aconselhamento genético, como parte importante do manejo dos pacientes e familiares. Vários conceitos sobre a CMH foram recentemente revistos, incluindo sua prevalência de 1 em 250 indivíduos, não sendo, portanto, uma doença rara, mas subdiagnosticada. A vasta maioria dos pacientes é assintomática. Naqueles sintomáticos, a obstrução do trato de saída do ventrículo esquerdo (OTSVE) é o principal distúrbio responsável pelos sintomas, devendo-se investigar a sua presença em todos os casos. Naqueles em que o ecocardiograma em repouso ou com Manobra de Valsalva não detecta gradiente intraventricular significativo (> 30 mmHg), devem ser submetidos à ecocardiografia com esforço físico para detecção da OTSVE.   Pacientes com sintomas limitantes e grave OTSVE, refratários ao uso de betabloqueadores e verapamil, devem receber terapias de redução septal ou uso de novas drogas inibidoras da miosina cardíaca. Por fim, os pacientes adequadamente identificados com risco aumentado de morta súbita podem receber medida profilática com implante de cardiodesfibrilador implantável (CDI).

La miocardiopatía hipertrófica (MCH) es una forma de enfermedad cardíaca de origen genético, caracterizada por el engrosamiento de las paredes ventriculares. El diagnóstico requiere la detección mediante métodos de imagen (Ecocardiograma o Resonancia Magnética Cardíaca) que muestren algún segmento de la pared ventricular izquierda con un grosor > 15 mm, sin otra causa probable. El análisis genético permite identificar mutaciones en genes que codifican diferentes estructuras del sarcómero responsables del desarrollo de la MCH en aproximadamente el 60% de los casos, lo que permite el tamizaje de familiares y el asesoramiento genético, como parte importante del manejo de pacientes y familiares. Varios conceptos sobre la MCH han sido revisados recientemente, incluida su prevalencia de 1 entre 250 individuos, por lo tanto, no es una enfermedad rara, sino subdiagnosticada. La gran mayoría de los pacientes son asintomáticos. En los casos sintomáticos, la obstrucción del tracto de salida ventricular izquierdo (TSVI) es el trastorno principal responsable de los síntomas, y su presencia debe investigarse en todos los casos. En aquellos en los que el ecocardiograma en reposo o la maniobra de Valsalva no detecta un gradiente intraventricular significativo (> 30 mmHg), deben someterse a ecocardiografía de esfuerzo para detectar la obstrucción del TSVI. Los pacientes con síntomas limitantes y obstrucción grave del TSVI, refractarios al uso de betabloqueantes y verapamilo, deben recibir terapias de reducción septal o usar nuevos medicamentos inhibidores de la miosina cardíaca. Finalmente, los pacientes adecuadamente identificados con un riesgo aumentado de muerte súbita pueden recibir medidas profilácticas con el implante de un cardioversor-desfibrilador implantable (CDI).

Hypertrophic cardiomyopathy (HCM) is a form of genetically caused heart muscle disease, characterized by the thickening of the ventricular walls. Diagnosis requires detection through imaging methods (Echocardiogram or Cardiac Magnetic Resonance) showing any segment of the left ventricular wall with a thickness > 15 mm, without any other probable cause. Genetic analysis allows the identification of mutations in genes encoding different structures of the sarcomere responsible for the development of HCM in about 60% of cases, enabling screening of family members and genetic counseling, as an important part of patient and family management. Several concepts about HCM have recently been reviewed, including its prevalence of 1 in 250 individuals, hence not a rare but rather underdiagnosed disease. The vast majority of patients are asymptomatic. In symptomatic cases, obstruction of the left ventricular outflow tract (LVOT) is the primary disorder responsible for symptoms, and its presence should be investigated in all cases. In those where resting echocardiogram or Valsalva maneuver does not detect significant intraventricular gradient (> 30 mmHg), they should undergo stress echocardiography to detect LVOT obstruction. Patients with limiting symptoms and severe LVOT obstruction, refractory to beta-blockers and verapamil, should receive septal reduction therapies or use new drugs inhibiting cardiac myosin. Finally, appropriately identified patients at increased risk of sudden death may receive prophylactic measure with implantable cardioverter-defibrillator (ICD) implantation.

https://doi.org/10.1590/SciELOPreprints.8394

Dynamic Behavior of Coffee Branches: an Analysis Using the Finite Element Method
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Melo Junior, Wellington Washington Andrade de

; Santos, Fábio Lúcio

; Scinocca, Francisco

; Rosa, Pablo Antunes da

; Magalhães, Ricardo Rodrigues

Brazilian Archives of Biology and Technology

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2024, Volume 67 elocation e24220331

Abstract: En | Text: En | PDF: En

Abstract The use of computational simulation techniques is an important tool for the coffee harvesting issues, particularly the finite element method. The method is widely used in the structural analysis of agricultural machinery, as well as in the analysis of the stresses and vibrations of coffee branches and peduncles during the harvesting process. The present study aimed to develop three-dimensional finite element models of the plagiotropic branches of the Catuaí Vermelho variety of Arabica coffee in different positions along the orthotropic branches of the plant; considering high-fidelity models. Additionally, by considering the branches’ experimental properties (physical-mechanical), the natural frequencies and vibration modes of the branches were determined by means of computer simulations. First, the geometric properties of the coffee branches were obtained by means of two images taken using a professional camera to obtain the input data of the virtual simulation. For the mechanical properties, it was used a semi-analytical digital scale, to obtain the mass of the specimens. The modulus of elasticity was determined using a universal testing machine. The variability in the simulated natural frequencies could be identified, which was on the order of 30% for the first frequency, regardless of the position of the branch in the plant. These values were lower for the other frequencies. Linear regression fits showed a coefficient of determination, and correlation tests were used to verify the relationship between the values obtained numerically and experimentally, which were validated by using experimental data using the modal analysis techniques.

https://doi.org/10.1590/1678-4324-2024220331

Biogran Grafting in Rat Tibia Defects - A Model of High Bone Metabolism Site
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Ferreira, Luiza de Almeida Queiroz

; Lehman, Luiz Felipe Cardoso

; Diniz, Marina Gonçalves

; Ferreira, Anderson José

; Silva, Rosangela Maria Ferreira da Costa e

; Silva, Tarcília Aparecida

; Mesquita, Ricardo Alves

; Oliveira, Rafaela Férrer de

; Noronha, Mariana Saturnino

; Leão, Daniel Marques

; Andrade, Ângela Leão

; Domingues, Rosana Zacarias

; Diniz, Ivana Márcia Alves

Brazilian Archives of Biology and Technology

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2024, Volume 67 elocation e24230003

Abstract: En | Text: En | PDF: En

Abstract We investigated the Biogran on bone repair and metabolism at several time-intervals upon grafting into rat tibia artificial defects. The biomaterial was thoroughly characterized in vitro, and its dissolution behavior upon immersion was assessed in simulated body fluid (SBF) solution for 1, 3, 7, 14, and 30 days. Biogran was also assessed by in vitro hydroxyapatite formation in SBF solution, which is a marker for bioactive behavior. In vivo, distal and proximal bone defects were performed in the Wistar rat's right tibia and filled according to the experimental groups: I) negative control, no filling; II) positive control, 10 mg of autogenous bone; and III) 10 mg of Biogran. Animals were euthanized at 1, 2, 3, 4, 7, and 10 weeks. Bone neoformation was analyzed using histomorphometry (proximal defect), and local levels of bone morphogenetic protein 2 (BMP-2) were measured using the ELISA assay (distal defect). In vitro, the Biogran sample showed a fast dissolution rate within the first 7 days, parallel to the formation of the hydroxyapatite layer. In vivo, the sample was progressively resorbed at a higher rate within the first month until it became almost absent at week 10th. The sample presented similar or higher bone neoformation concerning the autogenous bone. BMP-2 levels were sustained in the Biogran group (around 200 pg/mg) and detected until the last experimental time with a significant difference compared with the controls. Results suggest Biogran is a candidate for hard tissue engineering even in highly active bone remodeling sites.

https://doi.org/10.1590/1678-4324-2024230003

Noteworthy records of the ticks Ornithodoros rostratus and Amblyomma sculptum parasitizing Pteronura brasiliensis in the central-western region of Brazil, with pathogen investigation notes
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Barros-Battesti, Darci Moraes

; André, Marcos Rogério

; Hoppe, Estevam Guilherme Lux

; Seron, Gustavo

; Bassini-Silva, Ricardo

; Calchi, Ana Claúdia

; Andrade, Lívia Oliveira

; Perin, Patrícia Parreira

; Martins, Thiago Fernandes

; Castro-Santiago, Ana Carolina

; Leuchtenberger, Caroline

; Almeida, Samara

; Foerster, Nathalie

; Furtado, Mariana

; de Castro Jacinavicius, Fernando

Revista Brasileira de Parasitologia Veterinária

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2024, Volume 33 N. 1 elocation e014523

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

Resumo Um macho de Pteronura brasiliensis (Carnivora: Mustelidae) foi encontrado morto às margens do Rio Negro, no Pantanal do estado de Mato Grosso do Sul, município de Aquidauana. Dois carrapatos encontrados aderidos à sua pele foram identificados, morfologicamente, como uma ninfa de segundo ínstar de Ornithodoros rostratus (Argasidae) e um macho de Amblyomma sculptum (Ixodidae). Para complementar a identificação morfológica, esses espécimes de carrapatos foram submetidos à extração de DNA e testados por meio de ensaios de PCR, para confirmar a identidade molecular dos espécimes. Além disso, os extraídos dos carrapatos foram testados e revelaram-se negativos nos ensaios de PCR para todos os patógenos testados. Também foram examinados 30 lotes, compostos por 174 indivíduos de O. rostratus, depositados na Coleção Acari do Instituto Butantan, e encontramos material de quatro estados brasileiros, incluindo-se um lote contendo 2 machos e 2 fêmeas de Aquidauana, estado de Mato Grosso do Sul (MS), coletado do solo. Este foi, portanto, o primeiro registro de O. rostratus parasitando P. brasiliensis e o primeiro registro de localidade (Aquidauana). Da mesma forma, A. sculptum é comumente encontrado no Pantanal e relatado aqui, pela segunda vez, parasitando a ariranha, hospedeiro pouco estudado em relação a ectoparasitas.

Abstract A male of Pteronura brasiliensis (Carnivora: Mustelidae) was found dead on the banks of the Rio Negro, in the Pantanal wetlands of Mato Grosso do Sul state, Aquidauana municipality. Two ticks found attached to its skin were morphologically identified as a second-instar nymph of Ornithodoros rostratus (Argasidae) and a male of Amblyomma sculptum (Ixodidae). In order to complement the morphological identification, these tick specimens were subjected to DNA extraction, and tested using PCR assays to confirm the molecular identity the specimens. Also, the tick DNA samples were tested and were negative in the PCR assays for all the pathogens tested. We also examined 30 batches, consisting of 174 individuals of O. rostratus deposited in the Acari Collection of the Butantan Institute, and we found material from four Brazilian states, including one batch containing 2 males and 2 females from Aquidauana, of Mato Grosso do Sul state, collected from the soil. This was therefore the first record of O. rostratus parasitizing P. brasiliensis and the first locality record (Aquidauana). Likewise, A. sculptum is commonly found in the Pantanal and is reported here for the second time parasitizing the giant otter, which is a host little studied regarding the ectoparasites.

https://doi.org/10.1590/s1984-29612024003

Avaliação normativa do atendimento obstétrico emergencial na prevenção da COVID-19
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Silva, Sandra Cristina de Souza Borges

; Acauan, Laura Vargas

; Cardoso, Gisela Cordeiro Pereira

; Paes, Graciele Oroski

; Trotte, Liana Amorim Correa

; Mouta, Ricardo José Oliveira

; Stipp, Marluci Andrade Conceição

Acta Paulista de Enfermagem

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2024, Volume 37 elocation eAPE01901

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

Abstract Objective Evaluate the structure and care flow - risk classification and obstetric emergency in a public maternity hospital in the context of COVID-19. Methods Normative and observational evaluation study in the Care sectors (Risk Classification and Obstetric Emergency) of a public maternity hospital in Rio de Janeiro. Data collection was carried out from June to August 2020 for 480 hours of non-participant direct observation, with records systematized in a checklist containing variables related to the availability and compliance of structural resources, and the compliance of the care flow. Data were organized into spreadsheets (Microsoft Excel® 2010) and analyzed using descriptive statistics. Results The framework assessment scored 80.3% availability, resulting in a high availability rating, and 91.1% compliance, achieving adequate compliance. The care flow showed 72.7% of total compliance; 9.1% of partial compliance and 18.2% of non-compliance, configuring high compliance. Conclusion Normative evaluation indicated high availability and compliance in structure and care flow in the studied scenarios.

Resumen Objetivo Evaluar la estructura y el flujo de asistencia de recepción, clasificación de riesgo y emergencia obstétrica, en una maternidad pública en el contexto del COVID-19. Métodos Estudio tipo evaluación normativa y observacional en los sectores de Recepción (clasificación de riesgo y emergencia obstétrica) de una maternidad pública en Rio de Janeiro. La recopilación de datos se realizó de junio a agosto de 2020 durante 480 de observación directa no participante, con registros sistematizados en una checklist con variables relacionadas con la disponibilidad y conformidad de los recursos estructurales y con la conformidad del flujo de asistencia. Los datos se organizaron en planillas (Microsoft Excel® 2010) y se analizaron usando la estadística descriptiva. Resultados La evaluación de la estructura obtuvo un 80,3 % de disponibilidad, que tuvo como resultado una clasificación de alta disponibilidad, y un 91,1 % de conformidad, con una conformidad adecuada. El flujo de asistencia mostró un 72,7 % de conformidad total, un 9,1 % de conformidad parcial y un 18,2 % de no cumplimiento, lo que se configura como alta conformidad. Conclusión La evaluación normativa indicó alta disponibilidad y alta conformidad en estructura y flujo de asistencia en los escenarios estudiados.

Resumo Objetivo Avaliar a estrutura e o fluxo assistencial do acolhimento - classificação de risco e emergência obstétrica em uma maternidade pública no contexto da COVID-19. Métodos Estudo do tipo avaliação normativa e observacional nos setores de Acolhimento (Classificação de Risco e Emergência Obstétrica) de uma maternidade pública no Rio de Janeiro. A coleta de dados foi realizada de junho a agosto de 2020 por 480 horas de observação direta não participante, com registros sistematizados em checklist contendo variáveis relacionadas à disponibilidade e conformidade dos recursos estruturais, e à conformidade do fluxo assistencial. Os dados foram organizados em planilhas (Microsoft Excel® 2010) e analisados usando a estatística descritiva. Resultados A avaliação da estrutura obteve 80,3% de disponibilidade, resultando em classificação de alta disponibilidade e 91,1% de conformidade, obtendo conformidade adequada. O fluxo assistencial mostrou 72,7% de conformidade total; 9,1% de conformidade parcial e 18,2% de não cumprimento, configurando-se como alta conformidade. Conclusão A avaliação normativa indicou altas disponibilidade e conformidade em estrutura e fluxo assistencial nos cenários estudados.

https://doi.org/10.37689/acta-ape/2024ao0001901

Nitrogen efficiency in marandupalisadegrass pastures under increasing nitrogen levels
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Quadros, Fernando Luiz Ferreira de

; Ongaratto, Fernando

; Malheiros, Euclides Braga

; Lima, Laís de Oliveira

; Dallantonia, Erick Escobar

; Romanzini, Eliéder Prates

; Velludo, Igor de Martin

; Cardoso, Abmael da Silva

; Val, Guilherme Alves do

; Rigobello, Izabela Larosa

; Fernandes, Márcia Helena Machado da Rocha

; Reis, Ricardo Andrade

Ciência Rural

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2024, Volume 54 N. 3 elocation e20230049

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

ABSTRACT: The use of nitrogen (N) in pastoral ecosystems leads to increased productivity, as it allows the plant to elongate its leaves and, therefore, grazing herbivores harvest the green leaves. However, there are very volatile N sources, which can be replaced by ammonium nitrate, which is less volatile and less dependent on the application in rainy days. The treatments are compound of Marandu palisade grass pastures managed under continuous stocking at a canopy height of 25 cm, with different levels of N fertilizer: 0, 75, and 150 kg ha-1year-1, as ammonium nitrate (32% of N), with four replicates (pastures) in a completely randomized design. Nitrogen uptake (54.9, 96.5, 113.8 kg N ha-1) and N nutrition index (0.67, 0.98, 1.15) were different between N level, respectively, 0, 75 and 150 kg ha-1 year-1. The N recovery (58.3, 40.9 %) differed between 75 and 150 kg ha-1 year-1, respectively. The dose of 75 kg N kg ha-1 year-1 results in better N utilization, while the dose of 150 kg N ha-1 year-1 enables greater stocking rate; therefore, requiring less grazing area.

RESUMO: O uso de nitrogênio (N) em ecossistemas pastoris leva ao aumento da produtividade, pois permite que a planta alongue suas folhas e, portanto, os herbívoros colham as folhas verdes. Porém, existem fontes de nitrogênio muito voláteis, que devem ser substituídas por nitrato de amônio, que é menos volátil e menos dependente da aplicação em dias chuvosos. Os tratamentos foram compostos por pastagens de capim-marandu, manejadas sob lotação contínua, na altura do dossel a 25 cm, com diferentes doses de N: 0, 75 e 150 kg ha-1 ano-1, na forma de nitrato de amônio (32% de N), com quatro repetições (piquetes), em delineamento inteiramente casualizado. A absorção de nitrogênio (54,9; 96,5; 113,8 kg N ha-1) e o índice nutricional de N (0,67; 0,98; 1,15) foram diferentes entre as doses de N, respectivamente, 0, 75 e 150 kg ha-1 ano-1. A recuperação de N (58,3; 40,9%) diferiu entre 75 e 150 kg ha-1 ano-1, respectivamente. A dose de 75 kg N kg ha-1 ano-1 resultou em melhor aproveitamento do N, enquanto a dose de 150 kg N ha-1 ano-1 possibilita maior taxa de lotação; portanto, exigindo menos área de pastagem.

https://doi.org/10.1590/0103-8478cr20230049

Impact of harvest delay on the physiological and sanitary quality of Sorghum sp. seeds
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Martins, Antonio Guimarães

; Zuffo, Alan Mario

; Barrozo, Leandra Matos

; Mezzomo, Ricardo

; Silva, Francisco Charles dos Santos

; Steiner, Fabio

; Santos, Raianara Andrade dos

; Alves, Charline Zaratin

Revista Ciência Agronômica

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2024, Volume 55 elocation e20238802

Abstract: En | Text: En | PDF: En

ABSTRACT Harvest delay can alter the physiological and sanitary quality of sorghum seeds due to the longer exposure time of seeds to adverse environmental conditions in the field. In this study, we investigated the impact of delayed Sorghum sp. harvest on the physiological and sanitary quality of seeds in four hybrids grown in the tropical soil of the Brazilian Cerrado region. Plants from four Sorghum sp. hybrids (IPA SUDAN 4202, BRS 658, BRS 810, and BRS 373) were grown and submitted to four seed harvest periods (0, 7, 14, and 21 days after stage 9 - seed physiological maturity). The treatments were arranged in a completely randomized block design in a 4 × 4 factorial, with four replicates. At each harvest period, the thousand-seed weight, water content, first count of the germination test, germination, seedling emergence, emergence speed index, seedling dry matter, accelerated aging, electrical conductivity, and sanitary quality of seeds were determined. Seeds of higher physiological and sanitary quality of the IPA SUDAN 4202 and BRS 658 sorghum hybrids can be obtained when the harvest is carried out up to 7 days after the physiological maturity stage. However, the delay in seed harvesting at 14 and 21 days after physiological maturity results in a higher incidence of Colletotrichum sp., Curvularia sp., Rhizoctonia sp., and Alternaria sp. on the seeds of these hybrids. Delaying the harvest of sorghum seeds from 7 days after the physiological maturity stage compromises seed vigor and viability and increases the incidence of pathogens.

https://doi.org/10.5935/1806-6690.20230068

Agronomic practices toward coffee sustainability. A review
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Martinez, Herminia Emilia Prieto

; Andrade, Sara Adrián López de

; Santos, Ricardo Henrique Silva

; Baptistella, João Leonardo Corte

; Mazzafera, Paulo

Scientia Agricola

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2024, Volume 81 elocation e20220277

Abstract: En | Text: En | PDF: En

ABSTRACT The coffee sector is estimated to have a retail market value in excess of USD 83 billion, and over 125 million jobs have been created in the global coffee chain. The coffee specialty market has recently increased significantly, generating opportunities to certify coffee beans produced by sustainable practices. This avoids practices potentially harmful to the environment. Agroforestry, organic farming, intercropping, and soil conservation strategies are examples of sustainable alternatives in the production of coffee. In this review, we focus on practices for the sustainable management of coffee plantations that can help farmers fight problems caused by global warming. More specifically, we address soil organic matter and microbiota, the use of Urochloa grass as intercrop in coffee plantations, shading systems (including agroforestry), and organic coffee production. We concluded that from the agronomic viewpoint, we already have production techniques that can replace traditional ones with significant advantages accruing to the quality of coffee orchard ecosystems. Nevertheless, we need scientific research efforts to deal with the existing gaps and the engagement of the whole coffee chain as a means of guaranteeing an adequate profit to those smallholders who adopt and maintain sustainable practice and are capable of bringing several positive changes to the coffee crop, including the use of microbia-based commercial products and new organic sources of nutrients to complement chemical fertilizers and improve coffee quality.

https://doi.org/10.1590/1678-992x-2022-0277

10.

[SciELO Preprints] - METHODOLOGY FOR USING DIGITAL INFORMATION AND COMMUNICATION TECHNOLOGIES IN THE STUDENTS' SOCIO-EMOTIONAL SKILLS DEVELOPMENT
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Andrade, Renata Maciel de Gaspar, Ricardo Lins, Romulo

Journal Metrics
- Sobre o periódico
- SciELO Analytics

Publication date: 2023-12-08

Abstract: En Es Pt

The COVID-19 pandemic led to the closure of Brazilian educational institutions in March 2020, resulting in a shift to virtual classes for almost all students. This abrupt transition disrupted social interaction and cooperation among students. In response, a research study focused on improving virtual classes using Digital Information and Communication Technologies (DICT). The study proposed a four-step methodology: analyzing the impact of DICT on socio-emotional skills, designing and developing digital tasks to enhance social interaction, evaluating the effectiveness of these tasks through a questionnaire, and validating the methodology through qualitative analysis. The results showed that using DICT, combined with tailored pedagogical activities based on students' access to technology, aided in developing socio-emotional skills. Virtual classes positively affect students' organizational skills, empathy, and collaboration in group dynamics and individual activities.

Para mitigar los impactos de la pandemia de COVID-19, las instituciones educativas brasileñas cerraron y finalizaron las actividades presenciales en marzo de 2020, lo que afectó a casi el 100% de la población estudiantil brasileña y aceleró la adopción de clases virtuales en la educación primaria. Esta medida obligó a los estudiantes a pasar de clases presenciales a clases virtuales, lo que resultó en una interrupción abrupta de la interacción social y un sentido de cooperación entre los estudiantes. Debido al escenario expuesto, esta investigación investigó un método viable para mejorar las clases virtuales utilizando Tecnologías de la Información y la Comunicación Digital (TICD). En primer lugar, se realizó un análisis de cómo impacta el uso de las TICD en el desarrollo de habilidades socioemocionales. A continuación, buscamos diseñar y desarrollar nuevas dinámicas y tareas pedagógicas, en formato digital, que potenciaran la interacción social para mejorar la concentración de los estudiantes en la realización de las actividades escolares. El método fue implementado y validado a través de resultados que demostraron que el uso de las TIC en conjunto con actividades pedagógicas desarrolladas de acuerdo a la realidad del acceso de los estudiantes a la tecnología ayuda en el desarrollo de habilidades socioemocionales porque, durante las clases virtuales, se reconocieron impactos positivos sobre el sentido de organización tanto en dinámicas de grupo en las que los estudiantes demostraron empatía y colaboración con compañeros que tenían dificultades para utilizar las TICD como en actividades individuales.

Para mitigar os impactos da pandemia da COVID-19, as instituições de ensino brasileiras foram fechadas e encerraram as atividades presenciais em março de 2020, o que afetou quase 100% da população estudantil brasileira, acelerando a adoção de aulas virtuais no ensino fundamental. Tal medida forçou os alunos a mudarem de aulas presenciais para virtuais, resultando numa interrupção abrupta da interação social e do sentido de cooperação entre os alunos. Devido ao cenário exposto, esta pesquisa investigou um método viável para melhorar aulas virtuais utilizando Tecnologias Digitais de Informação e Comunicação (TDIC). Na sequência, procurou-se conceber e desenvolver novas dinâmicas e tarefas pedagógicas, em formato digital, que potencializassem a interação social para melhorar o foco dos alunos na execução das atividades escolares.  O método foi implantado e validado por meio dos resultados que demonstraram que o uso das TDIC em conjunto com atividades pedagógicas desenvolvidas conforme a realidade de acesso dos alunos à tecnologia auxilia no desenvolvimento de competências socioemocionais porque, durante as aulas virtuais, foram reconhecidos impactos positivos no sentido de organização tanto nas dinâmicas de grupo em que os alunos demonstraram empatia e colaboração com colegas que tinham dificuldades na utilização das TDIC, quanto nas atividades individuais.

https://doi.org/10.1590/SciELOPreprints.7379

11.

Impact of vertical positioning on lung aeration among mechanically ventilated intensive care unit patients: a randomized crossover clinical trial
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Neves, Douglas

; Marques Filho, Paulo Ricardo

; Townsend, Raquel da Silva

; Rodrigues, Cristiano dos Santos

; Tagliari, Luciana

; Madeira, Laura Cordeiro

; Mattioni, Mariana Fensterseifer

; Camillis, Márcio Luiz Ferreira de

; Leães, Clarissa Garcia Soares

; Andrade, Juliana Mara Stormovski de

; Robinson, Caroline Cabral

; Sganzerla, Daniel

; Drehmer, Laura

; Costa, Denis Fernandes Madruga da

; Machado, André Sant’Ana

; Rosa, Regis Goulart

; Lago, Pedro Dal

Critical Care Science

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2023, Volume 35 N. 4 Pages 367 - 376

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

ABSTRACT Objective: To assess the impact of different vertical positions on lung aeration in patients receiving invasive mechanical ventilation. Methods: An open-label randomized crossover clinical trial was conducted between January and July 2020. Adults receiving invasive mechanical ventilation for > 24 hours and < 7 days with hemodynamic, respiratory and neurological stability were randomly assigned at a 1:1 ratio to the sitting position followed by passive orthostasis condition or the passive orthostasis followed by the sitting position condition. The primary outcome was lung aeration assessed using the lung ultrasound score (score ranges from 0 [better] to 36 [worse]). Results: A total of 186 subjects were screened; of these subjects, 19 were enrolled (57.8% male; mean age, 73.2 years). All participants were assigned to receive at least one verticalization protocol. Passive orthostasis resulted in mean lung ultrasound scores that did not differ significantly from the sitting position (11.0 versus 13.7; mean difference, -2.7; [95%CI -6.1 to 0.71; p = 0.11). Adverse events occurred in three subjects in the passive orthostasis group and in one in the sitting position group (p = 0.99). Conclusion: This analysis did not find significant differences in lung aeration between the sitting and passive orthostasis groups. A randomized crossover clinical trial assessing the impact of vertical positioning on lung aeration in patients receiving invasive mechanical ventilation is feasible. Unfortunately, the study was interrupted due to the need to treat COVID-19 patients. ClinicalTrials.gov registry: NCT04176445

RESUMO Objetivo: Avaliar o impacto de diferentes posicionamentos verticais na aeração pulmonar em pacientes em ventilação mecânica invasiva. Métodos: Trata-se de ensaio clínico aberto, randomizado e transversal, realizado entre janeiro e julho de 2020. Adultos em ventilação mecânica invasiva por mais de 24 horas e menos de 7 dias com estabilidade hemodinâmica, respiratória e neurológica foram distribuídos aleatoriamente em uma proporção de 1:1 à postura sentada seguida da condição de ortostatismo passivo ou o ortostatismo passivo seguido de postura sentada. O desfecho primário foi a aeração pulmonar avaliada pelo lung ultrasound score. O escore varia de zero (melhor) a 36 (pior). Resultados: Foram selecionados 186 indivíduos; destes, 19 foram incluídos (57,8% do sexo masculino; média idade de 73,2 anos). Todos os participantes foram selecionados para receber pelo menos um protocolo de verticalização. O ortostatismo passivo resultou em escores médios de aeração pulmonar por ultrassonografia que não diferiram significativamente da postura sentada (11,0 versus 13,7; diferença média, -2,7; IC95% -6,1 a 0,71; p = 0,11). Ocorreram eventos adversos em três indivíduos no grupo ortostatismo passivo e em um no grupo postura sentada (p = 0,99). Conclusão: Esta análise não encontrou diferenças significativas na aeração pulmonar entre os grupos ortostatismo passivo e postura sentada. É factível conduzir um estudo clínico transversal randomizado para avaliar o impacto do posicionamento vertical na aeração pulmonar em pacientes em ventilação mecânica invasiva. Infelizmente, o estudo foi interrompido devido à necessidade de tratar pacientes com COVID-19. Registro ClinicalTrials.gov: NCT04176445

https://doi.org/10.5935/2965-2774.20230069-en

12.

Dapagliflozin in patients with critical illness: rationale and design of the DEFENDER study
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Tavares, Caio de Assis Moura

; Azevedo, Luciano César Pontes de

; Rea-Neto, Álvaro

; Campos, Niklas Söderberg

; Amendola, Cristina Prata

; Bergo, Ricardo Reinaldo

; Kozesinski-Nakatani, Amanda Christina

; David-João, Paula Geraldes

; Westphal, Glauco Adrieno

; Guimarães Júnior, Mário Roberto Rezende

; Lobo, Suzana Margareth Ajeje

; Tavares, Marcos Soares

; Dracoulakis, Marianna Deway Andrade

; Souza, Guilherme Martins de

; Almeida, Guacyra Margarita Batista de

; Gebara, Otavio Celso Eluf

; Tomba, Pablo Oscar

; Albuquerque, Camila Santos N

; Silva, Mariana Castaldi Ramalho

; Pereira, Adriano José

; Damiani, Lucas Petri

; Corrêa, Thiago Domingos

; Serpa-Neto, Ary

; Berwanger, Otavio

; Zampieri, Fernando Godinho

Critical Care Science

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2023, Volume 35 N. 3 Pages 256 - 265

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

ABSTRACT Background: Critical illness is a major ongoing health care burden worldwide and is associated with high mortality rates. Sodium-glucose cotransporter-2 inhibitors have consistently shown benefits in cardiovascular and renal outcomes. The effects of sodium-glucose cotransporter-2 inhibitors in acute illness have not been properly investigated. Methods: DEFENDER is an investigator-initiated, multicenter, randomized, open-label trial designed to evaluate the efficacy and safety of dapagliflozin in 500 adult participants with acute organ dysfunction who are hospitalized in the intensive care unit. Eligible participants will be randomized 1:1 to receive dapagliflozin 10mg plus standard of care for up to 14 days or standard of care alone. The primary outcome is a hierarchical composite of hospital mortality, initiation of kidney replacement therapy, and intensive care unit length of stay, up to 28 days. Safety will be strictly monitored throughout the study. Conclusion: DEFENDER is the first study designed to investigate the use of a sodium-glucose cotransporter-2 inhibitor in general intensive care unit patients with acute organ dysfunction. It will provide relevant information on the use of drugs of this promising class in critically ill patients. ClinicalTrials.gov registry: NCT05558098

RESUMO Antecedentes: A doença crítica é um importante ônus permanente da assistência médica em todo o mundo e está associada a altas taxas de mortalidade. Os inibidores do cotransportador de sódio-glicose do tipo 2 têm demonstrado consistentemente benefícios nos desfechos cardiovasculares e renais. Os efeitos dos inibidores do cotransportador de sódio-glicose do tipo 2 em doenças agudas ainda não foram devidamente investigados. Métodos: O DEFENDER é um estudo de iniciativa do investigador, multicêntrico, randomizado, aberto, desenhado para avaliar a eficácia e a segurança da dapagliflozina em 500 participantes adultos com disfunção orgânica aguda hospitalizados na unidade de terapia intensiva. Os participantes aptos serão randomizados 1:1 para receber 10mg de dapagliflozina e o tratamento padrão por até 14 dias ou apenas o tratamento padrão. O desfecho primário é um composto hierárquico de mortalidade hospitalar, início de terapia renal substitutiva e tempo de internação na unidade de terapia intensiva, até 28 dias. O monitoramento da segurança será rigoroso durante todo o estudo. Conclusão: O DEFENDER é o primeiro estudo desenvolvido para investigar o uso de um inibidor do cotransportador de sódio-glicose do tipo 2 em pacientes de unidade de terapia intensiva geral com disfunção orgânica aguda. O estudo fornecerá informações relevantes sobre o uso de medicamentos dessa classe promissora em pacientes críticos. Registro ClincalTrials.gov: NCT05558098

https://doi.org/10.5935/2965-2774.20230129-en

13.

Physical rehabilitation in Brazilian pediatric intensive care units: a multicenter point prevalence study
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Redivo, Juliana

; Kannan, Harini

; Souza, Andreia Aparecida Freitas

; Colleti Junior, José

; Kudchadkar, Sapna Ravi

; Horigoshi, Nelson Kazunobu

; Costa, Graziela de Araújo

; Castilho, Taísa Roberta Ramos de

; Peron, Paula Peres Domingues

; Scaranto, Walter Perez

; Medeiros, Daniela Nasu Monteiro

; Matsumoto, Toshio

; Almeida, Carlos Gustavo de

; Oliveira, Felipe Rezende Caino de

; Brandão, Marcelo Barciela

; Lima-Setta, Fernanda

; Prata-Barbosa, Arnaldo

; Xavier, Glaciele Nascimento

; Andrade, Livia Barbosa de

; Aguiar, Agda Ultra de

; Coutinho, Marcos Paulo Galdino

; Castro, Roberta Esteves Viera de

; Landy, Glazia André

; Balaniuc, Suzana Lopes Bonfim

; Yamaguchi, Ricardo Silveira

Critical Care Science

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2023, Volume 35 N. 3 Pages 290 - 301

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

ABSTRACT Objective: To determine the prevalence and factors associated with the physical rehabilitation of critically ill children in Brazilian pediatric intensive care units. Methods: A 2-day, cross-sectional, multicenter point prevalence study comprising 27 pediatric intensive care units (out of 738) was conducted in Brazil in April and June 2019. This Brazilian study was part of a large multinational study called Prevalence of Acute Rehabilitation for Kids in the PICU (PARK-PICU). The primary outcome was the prevalence of mobility provided by physical therapy or occupational therapy. Clinical data on patient mobility, potential mobility safety events, and mobilization barriers were prospectively collected in patients admitted for ≥ 72 hours. Results: Children under the age of 3 years comprised 68% of the patient population. The prevalence of therapist-provided mobility was 74%, or 277 out of the 375 patient-days. Out-of-bed mobility was most positively associated with family presence (adjusted odds ratios 3.31;95%CI 1.70 - 6.43) and most negatively associated with arterial lines (adjusted odds ratios 0.16; 95%CI 0.05 - 0.57). Barriers to mobilization were reported on 27% of patient-days, the most common being lack of physician order (n = 18). Potential safety events occurred in 3% of all mobilization events. Conclusion: Therapist-provided mobility in Brazilian pediatric intensive care units is frequent. Family presence was high and positively associated with out-of-bed mobility. The presence of physiotherapists 24 hours a day in Brazilian pediatric intensive care units may have a substantial impact on the mobilization of critically ill children.

RESUMO Objetivo: Determinar a prevalência e os fatores associados à reabilitação física de crianças em estado grave em unidades de terapia intensiva pediátrica brasileiras. Métodos: Realizou-se um estudo de prevalência pontual multicêntrico, transversal, de 2 dias, abrangendo 27 unidades de terapia intensiva pediátrica (do total de 738) no Brasil em abril e junho de 2019. Este estudo brasileiro fez parte de um grande estudo multinacional chamado Prevalence of Acute Rehabilitation for Kids in the PICU (PARK-PICU). O desfecho primário foi a prevalência de mobilidade proporcionada pela fisioterapia ou pela terapia ocupacional. Foram coletados prospectivamente dados clínicos sobre a mobilidade do paciente, possíveis eventos de segurança de mobilidade e barreiras de mobilização em pacientes admitidos por ≥ 72 horas. Resultados: As crianças com idade inferior a 3 anos eram 68% da população de pacientes. A prevalência de mobilidade fornecida pelo terapeuta foi de 74%, ou 277 dos 375 pacientes-dia. A mobilidade para fora do leito foi mais positivamente associada à presença de familiares (razão de chance ajustada de 3,31; IC95% 1,70 - 6,43) e mais negativamente associada às linhas arteriais (razão de chance ajustada de 0,16; IC95% 0,05 - 0,57). Foram relatadas barreiras à mobilização em 27% dos pacientes-dia, sendo a mais comum a falta de prescrição médica (n = 18). Registaram-se eventuais eventos de segurança em 3% de todos os eventos de mobilização. Conclusão: A mobilidade proporcionada pelo terapeuta nas unidades de terapia intensiva pediátrica brasileiras é frequente. A presença de familiares foi alta e positivamente associada à mobilidade para fora do leito. A presença de fisioterapeutas 24 horas por dia nas unidades de terapia intensiva pediátrica brasileiras pode exercer papel importante na mobilização de crianças em estado grave.

https://doi.org/10.5935/2965-2774.20230388-en

14.

Laparoscopic Ureterocalicostomy Technique
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Nunes, Romulo S. S.

; Suartz, Caio V.

; Andrade, Hiury S.

; Jordão, Ricardo D.

; Srougi, Victor

; Mitre, Anuar I.

; Nahas, William C.

; Arap, Marco A.

International braz j urol

Journal Metrics
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- SciELO Analytics

aug 2023, Volume 49 N. 4 Pages 517 - 518

Abstract: En | Text: En | PDF: En

ABSTRACT Purpose: Ureterocalicostomy is a technique that was first described by Neuwirt in 1948 (1) The laparoscopic access was initiated in 2003 by Cherullo et al. (2), following the established principles of open surgery. In 2004, Gill et al. had two patients with UPJO treated with laparoscopic ureterocalicostomy, with success (3). In 2014, Arap et. al. presented a case series with good results in adults and children in our service (4). There are factors that prepare the surgeon for an ureterocalicostomy, such as the renal cortex thickness, although the decision is mainly taken during the procedure (5). Material and Methods: A 24 years-old female patient with right lumbar pain was referred to our institution. She already had a right open pyeloplasty two years ago. The CT scan presented a right hydronephrotic kidney, DMSA scan with 30% of relative function and a DTPA scan with an obstructive pattern. Results: A laparoscopic ureterocalicostomy was performed due to the intra-operative findings (inferior kidney pole thickness and challenging access to the uretero-pelvic junction). The overall time was 130 minutes with no complications. The patient was discharged in two days and the double J was withdrawn in four weeks. The CT scan within one year demonstrates a reduction of the hydronephrosis. She had no more lumbar pain. Conclusion: In complex cases, the laparoscopic ureterocalicostomy proves to be a safe and efficient procedure, with a free tension-free anastomosis and the advantages of the laparoscopic access.

https://doi.org/10.1590/s1677-5538.ibju.2022.0521

15.

Síndrome de Wellens: Um Relato de Caso
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Rei, Sofia

; Andrade, Raquel

; Pinto, Ricardo

Gazeta Médica

Journal Metrics
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- SciELO Analytics

mar 2023, Volume 10 N. 1 Pages 37 - 41

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

Abstract Ischemic heart disease is currently the leading isolated cause of death worldwide. The differential diagnosis of chest pain includes cardiac and non-cardiac pathology, and the early identification of acute coronary syndromes (ACS), which manifest as angina, typically lasting longer than 20-30 minutes, of new-onset, is extremely important. For the diagnosis of ACS, it is necessary to perform an electrocardiogram (ECG) and search for myocardial necrosis markers. We report the case of a 58-year-old man with very high cardiovascular risk, who presented chest pain with characteristics of crescendo angina in a routine appointment, having been referred to the emergency department in the area of residence. Complementary diagnostic tests were performed, which were compatible with Wellens’ syndrome. In a patient with chest pain, it is essential to exclude ACS, given the potential risk of morbidity and mortality if not diagnosed and treated in time. Thus, it is important to carry out a detailed medical history focusing on pain characteristics, as well as the quick execution and interpretation of the ECG.

Resumo A cardiopatia isquémica é a principal causa isolada de morte em todo o mundo. O diagnóstico diferencial de dor torácica engloba patologia cardíaca e não cardíaca, sendo de extrema importância a identificação precoce de síndromes coronárias agudas (SCA), que se manifestam por dor anginosa, tipicamente com duração superior a 20-30 minutos, de início ou agravamento recentes. Para o diagnóstico de SCA, é necessário realizar um eletrocardiograma (ECG) e pesquisa de marcadores de necrose miocárdica. O presente caso clínico descreve a história de um homem de 58 anos com risco cardiovascular muito elevado, que, numa consulta de rotina, apresentava dor torácica com características de angina em crescendo, tendo sido referenciado para o serviço de urgência da área de residência, onde realizou exames complementares de diagnóstico, que foram compatíveis com síndrome de Wellens. Perante um doente com dor torácica, é fundamental excluir SCA, dado o potencial risco de morbimortalidade, caso não seja diagnosticado e tratado atempadamente. Para tal, é essencial realizar uma anamnese detalhada com enfoque nas características da dor, assim como a execução e interpretação rápida do ECG.

https://doi.org/10.29315/gm.v1i1.639

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