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Mixed construction and demolition powder as a filler to Portland cement: study on packaged pastes
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Oliveira, Dayana Ruth Bola

; Proença, Melissa Pastorini

; Marques Filho, José

; Possan, Edna

Ambiente Construído

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dec 2024, Volume 24 elocation e131882

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

Abstract The aim of this study is to explore more sustainable approaches by replacing Portland cement (OPC) with recycled mixed powder (RMP) derived from construction and demolition waste (CDW), with a focus on reducing carbon emissions. The CDW was subjected to grinding and sieving until a fraction <0.15 mm was obtained. The particles were then thermally activated at 800°C in a muffle for 0.5, 1, 2, and 3 hours. The OPC replacement levels by RMP were defined based on the particle packing method, ranging from 0 to 65%. The study was carried out on pastes with a water/fines ratio ranging from 0.07 to 0.14 and superplasticizer admixture (SP), evaluating the compressive strength at 28, 63, and 91 days. The mechanical and environmental performance of Portland cement pastes composed with RMP showed compressive strength higher than the reference, reaching 37 MPa for a 45% replacement content at 28 days, reducing the CO2 emissions per m³ of paste by up to 53%. This study suggested that the treatment and packaging RMP particles may potentially increase the mechanical and environmental performance, making it an alternative to promote the circular economy and low-carbon cement.

Resumo O objetivo deste estudo é explorar abordagens mais sustentáveis, substituindo o cimento Portland (OPC) por pó reciclado misto (RMP) derivado de resíduos de construção e demolição (RCD), focado na redução das emissões de carbono. O RCD foi submetido à moagem e peneiramento até a obtenção de uma fração < 0,15 mm. Em seguida, as partículas foram termicamente ativadas a 800°C em mufla por 0,5, 1, 2 e 3 horas. Os níveis de substituição de OPC por RMP foram definidos a partir do método de empacotamento de partículas, variando entre 0 e 65%. O estudo foi realizado em pastas com relação água/finos entre 0,07 e 0,14 e aditivo superplastificante (SP), com avaliação da resistência à compressão aos 28, 63 e 91 dias. Quanto ao desempenho mecânico e ambiental das pastas de cimento Portland compostas com RMP a resistência à compressão foi superior à referência, chegando a 37 MPa para um teor de substituição de 45% aos 28 dias, promovendo uma redução de 53% na emissão de CO 2 por m³ de pasta. O estudo indicou que tratar e empacotar as partículas de RMP aumenta o desempenho mecânico e ambiental, tornando-se alternativa para promover a economia circular e reduzir as emissões do cimento.

https://doi.org/10.1590/s1678-86212024000100715

Implementação e governança da Indicação Geográfica no Brasil: uma revisão
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Pereira Corrêa, Sueli José

; Marques Nejaim, Vinícius

; de Souza Abud, Ana Karla

; de Oliveira Barretto, Lília Calheiros

; Batista Barbosa, João

; de Oliveira Júnior, Antonio Martins

Revista Geográfica de América Central

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jun 2024, N. 72 Pages 187 - 212

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

Resumo No Brasil, redes de apoio colaborativas têm sido estruturadas para conduzir o processo de reconhecimento de Indicação Geográfica (IG), junto ao Instituto Nacional de Propriedade Industrial. O objetivo do presente trabalho foi delinear uma revisão de literatura sobre o processo de implementação e a governança da IG no país para melhor compreensão deste cenário. A metodologia foi baseada em pesquisas nos periódicos da Comissão de Aperfeiçoamento de Pessoal do Nível Superior e em bases de dados gratuitas como Google Acadêmico, com critérios de inclusão e exclusão para seleção das publicações. Das 109 publicações encontradas, 22 foram criteriosamente selecionadas para análise sob a ótica da dinâmica dos processos de implementação e governança de IG no Brasil. Observou-se que as redes colaborativas para condução dos processos de implementação e governança de IG foram estruturadas com dinâmicas diferentes em cada território, resultado de esforços e articulações realizadas por diferentes instituições brasileiras.

Abstract In Brazil, collaborative support networks have been structured to conduct the process of recognition of Geographical Indication (GI) together with the National Institute of Industrial Property. The objective of the present work was to outline a literature review on the implementation process and governance of GIs in the country for a better understanding of this scenario. The methodology was based on research in the journals of the Higher Education Personnel Improvement Commission and free databases such as Google Scholar, with inclusion and exclusion criteria for selecting publications. Of the 109 publications found, 22 were carefully selected for analysis from the perspective of the dynamics of GI implementation and governance processes in Brazil. It was observed that the collaborative networks to conduct the GI implementation and governance processes were structured with different dynamics in each territory, resulting from efforts and coordination carried out by different Brazilian institutions.

Resumen En Brasil, se han estructurado redes de apoyo colaborativo para realizar el proceso de reconocimiento de la Indicación Geográfica (IG), junto con el Instituto Nacional de Propiedad Industrial. El objetivo del presente trabajo fue esbozar una revisión bibliográfica sobre el proceso de implementación y gobernanza de las IG en el país para una mejor comprensión de este escenario. La metodología se basó en investigaciones en las revistas de la Comisión de Mejoramiento del Personal de Educación Superior y en bases de datos gratuitas como Google Scholar, con criterios de inclusión y exclusión para la selección de publicaciones. De las 109 publicaciones encontradas, 22 fueron cuidadosamente seleccionadas para el análisis desde la perspectiva de la dinámica de los procesos de implementación y gobernanza de las IG en Brasil. Se observó que las redes colaborativas para conducir los procesos de implementación y gobernanza de la IG se estructuraron con dinámicas diferentes en cada territorio, resultado de esfuerzos y articulaciones realizadas por diferentes instituciones brasileñas.

https://doi.org/10.15359/rgac.72-1.7

Dynamic analysis of a small-sized wind turbine in the Midwest of Brazil smallsized small sized
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Matos, Yago Machado Pereira de

; Farias, Márcio Muniz de

; Cunha, Renato Pinto da

; Guimarães, Marlos José Ribeiro

; Cabral, Renato Marques

REM - International Engineering Journal

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mar 2024, Volume 77 N. 1 Pages 21 - 26

Abstract: En | Text: En | PDF: En

Abstract Nowadays, despite the implementation of new wind farms in Brazil, it still is difficult to form partnerships with companies in the sector, which significantly contributes to the gap in information provided by national literature and the lack of knowledge about the mechanical behavior of wind turbines subjected to transient wind effects. Therefore, through a Research and Development Project to optimize and improve modeling in wind systems, the Brazilian electric power company Eletrobras Furnas aims to facilitate the construction of smaller wind turbines to supply energy to regions far from the Brazilian coast that do not have high generation potential due to the incidence of low-speed winds. Two relevant aspects directly linked to the performance of this kind of structures are: (i) determining their natural frequency and (ii) ensuring that this frequency does not coincide with any external vibration frequency that the structure may experience in its lifetime. Wind turbines are complex systems with many degrees of freedom and their own frequencies associated with the respective mode shapes in which they naturally vibrate. These frequencies are inversely related to the mass and directly related to the stiffness of the structure. Thus, through numerical modeling using the Finite Element Method, the present article aims to list some of the main factors that can affect the prediction of the natural frequency of a real-scale wind turbine prototype and to evaluate its dynamic behavior, considering its rotor revolution frequency, its blade passing frequency and the wind characteristics of its operating area. Nowadays Brazil sector effects Therefore lowspeed low speed winds i (i ii (ii lifetime vibrate Thus Method realscale real scale area

https://doi.org/10.1590/0370-44672023770048

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

When the fever will not stop, stop the pills! A case report
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Matos, César Ricardo Coimbra de

; Beirão, Eduarda Maria da Conceição Sério Pereira

; Neves, Rafael Simões

; Assunção, António José

; Marques, Rui Moreira

Sao Paulo Medical Journal

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2024, Volume 142 N. 3 elocation e2022401

Abstract: En | Text: En | PDF: En

ABSTRACT Neuroleptic malignant syndrome (NMS) is a neurologic emergency potentially fatal. This rare side effect is most commonly associated with first-generation antipsychotics and less frequently with atypical or second-generation antipsychotics. The diagnosis relies on both clinical and laboratory criteria, with other organic and psychiatric conditions being ruled out. CASE REPORT: A 39-year-old female patient, who is institutionalized and completely dependent, has a medical history of recurrent urinary infections and colonization by carbapenem-resistant Klebsiella pneumoniae. Her regular medication regimen included sertraline, valproic acid, quetiapine, risperidone, lorazepam, diazepam, haloperidol, baclofen, and fentanyl. The patient began experiencing dyspnea. Upon physical examination, she exhibited hypotension and a diminished vesicular murmur at the right base during pulmonary auscultation. Initially, after hospitalization, she developed high febrile peaks associated with hemodynamic instability, prompting the initiation of antibiotic treatment. Despite this, her fever persisted without an increase in blood inflammatory parameters, and she developed purulent sputum, necessitating antibiotherapy escalation. The seventh day of hospitalization showed no improvement in symptoms, suggesting NNMS as a differential diagnosis. All antipsychotic and sedative drugs, as well as antibiotherapy, were discontinued, after which the patient showed significant clinical improvement. CONCLUSION: Antipsychotic agents are commonly employed to manage behavioral changes linked to various disorders. However, their severe side effects necessitate a high degree of vigilance, the cessation of all medications, and the implementation of supportive care measures. A prompt and accurate diagnosis of NMS is crucial to alleviating the severe, prolonged morbidity and potential mortality associated with this syndrome.

https://doi.org/10.1590/1516-3180.2022.0401.r1.13032023

Quasi-iatrogenia vascular - dois relatos de caso
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Pires, Patrícia

; Sousa, Gonçalo

; Afonso, Ana

; Vieira, João

; Marques, Gil

; Gonçalves, Ana

; Barroso, Pedro

; Gonzalez, Antonio

; Ferreira, Maria José

Angiologia e Cirurgia Vascular

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dec 2023, Volume 19 N. 4 Pages 231 - 234

Abstract: Pt | Text: Pt | PDF: Pt

Resumo Introdução: As lesões vasculares iatrogénicas são uma causa importante de morbilidade e mortalidade após intervenções cirúrgicas ortopédicas ou neurocirúrgicas. Neste artigo, os autores apresentam dois casos clinicos de quasi-iatrogenia vascular. Casos clínicos: Dois casos, um procedimento ortopédico e um procedimento neurocirúrgico, são apresentados. O primeiro caso refere-se a uma mulher de 80 anos com migração do componente acetabular de uma prótese da anca, associado a trombose da veia ilíaca externa. O segundo caso reporta um homem de 27 anos com compressão medular ao nível de D6 por motivo de um hemangioma ósseo. Após a operação, verificou-se a presença de material de fixação (parafuso) fazendo protusão para o lúmen da aorta torácica. Este foi removido num segundo momento. Ambas as operações decorreram sem complicações. Conclusão: Os autores consideram que uma abordagem multidisciplinar contribuiu significativamente para o sucesso dos casos apresentados.

https://doi.org/10.48750/acv.540

Movimentos Sociais e Pandemia: Lições de anos em turbulência
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Marques, Nadejda

; Mendes, José Manuel

Revista Internacional em Língua Portuguesa

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dec 2023, Volume 44 Pages 43 - 56

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

Resumo A pandemia da COVID-19 acelerou complexas transformações sociais que ocorriam na sociedade há décadas. As principais políticas de contenção da pandemia, do isolamento físico/social ao lockdown, representavam barreiras significativas à organização de protestos nas ruas. Nesse contexto, organizações e movimentos sociais precisaram se adaptar e evoluir rapidamente para garantir sua sobrevivência, relevância e realizar suas demandas. Este artigo demonstra que apesar dessas dificuldades, durante os anos da pandemia, de 2020 a 2022, vários movimentos sociais não somente se fortaleceram como tiveram considerável êxito. Isso se deu principalmente para movimentos já estabelecidos que conseguiram alavancar e combinar uma série de táticas de mobilização inclusive com uso de ferramentas tecnológicas para canalizar o descontentamento social através de redes de solidariedade e aproveitar oportunidades políticas. A análise desse contexto e dessas experiências globais oferecem lições valiosas através das quais os movimentos podem dialogar e ajudarem-se mutuamente, além de promoverem lições de sustentabilidade para o processo de contestação social ao longo prazo.

Abstract The COVID-19 pandemic accelerated complex social changes taking place in society for decades. Policies and practices implemented to contain the pandemic and restrict the spread of the vírus - from physical/social isolation to lockdowns - have posed significant obstacles to the organization of public protests. To confront this new context, social movements and activists were forced to adapt and evolve quickly to ensure their survival and relevance, and to fulfill their demands. Despite difficulties, this article argues that in the period of 2020 to 2022, many social movements both became stronger and achieved considerable advances by using a combination of mobilization tactics including leveraging technology to channel popular discontent through networks of solidarity and political opportunities. Analyzing the contexts and experiences from around the world provides valuable lessons on how movements can dialogue and support each other and develop more durable sustainable forms of contestation processes.

https://doi.org/10.31492/2184-2043.rilp2023.44/pp.43-56

Posicionamento do Departamento de Imagem Cardiovascular da Sociedade Brasileira de Cardiologia sobre o Uso do Strain Miocárdico na Rotina do Cardiologista – 2023
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Almeida, André Luiz Cerqueira

; Melo, Marcelo Dantas Tavares de

; Bihan, David Costa de Souza Le

; Vieira, Marcelo Luiz Campos

; Pena, José Luiz Barros

; Del Castillo, José Maria

; Abensur, Henry

; Hortegal, Renato de Aguiar

; Otto, Maria Estefania Bosco

; Piveta, Rafael Bonafim

; Dantas, Maria Rosa

; Assef, Jorge Eduardo

; Beck, Adenalva Lima de Souza

; Santo, Thais Harada Campos Espirito

; Silva, Tonnison de Oliveira

; Salemi, Vera Maria Cury

; Rocon, Camila

; Lima, Márcio Silva Miguel

; Barberato, Silvio Henrique

; Rodrigues, Ana Clara

; Rabschkowisky, Arnaldo

; Frota, Daniela do Carmo Rassi

; Gripp, Eliza de Almeida

; Barretto, Rodrigo Bellio de Mattos

; Silva, Sandra Marques e

; Cauduro, Sanderson Antonio

; Pinheiro, Aurélio Carvalho

; Araujo, Salustiano Pereira de

; Tressino, Cintia Galhardo

; Silva, Carlos Eduardo Suaide

; Monaco, Claudia Gianini

; Paiva, Marcelo Goulart

; Fisher, Cláudio Henrique

; Alves, Marco Stephan Lofrano

; Grau, Cláudia R. Pinheiro de Castro

; Santos, Maria Veronica Camara dos

; Guimarães, Isabel Cristina Britto

; Morhy, Samira Saady

; Leal, Gabriela Nunes

; Soares, Andressa Mussi

; Cruz, Cecilia Beatriz Bittencourt Viana

; Guimarães Filho, Fabio Villaça

; Assunção, Bruna Morhy Borges Leal

; Fernandes, Rafael Modesto

; Saraiva, Roberto Magalhães

; Tsutsui, Jeane Mike

; Soares, Fábio Luis de Jesus

; Falcão, Sandra Nívea dos Reis Saraiva

; Hotta, Viviane Tiemi

; Armstrong, Anderson da Costa

; Hygidio, Daniel de Andrade

; Miglioranza, Marcelo Haertel

; Camarozano, Ana Cristina

; Lopes, Marly Maria Uellendahl

; Cerci, Rodrigo Julio

; Siqueira, Maria Eduarda Menezes de

; Torreão, Jorge Andion

; Rochitte, Carlos Eduardo

; Felix, Alex

Arquivos Brasileiros de Cardiologia

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dec 2023, Volume 120 N. 12 elocation e20230646

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

https://doi.org/10.36660/abc.20230646

Equity program: strategies on clinical studies as an aggregating potential program
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Crusoe, Edvan de Queiroz

; Hallack Neto, Abrahão Elias

; Nantes, Deise Ferreira

; Ribeiro, Eduardo Flavio Oliveira

; Pinto, Fernando Monteiro Correia

; Bortolini, Jaisson Andre Pagnoncelli

; Maciel, James Farley Rafael

; Marques Junior, Jose Francisco Comenalli

; Corrêa, Lorena Costa

; Capra, Marcelo Eduardo Zanella

; Carvalho, Maria do Perpétuo Socorro Sampaio

; Melo, Nelcivone Soares de

; Quintas, Rafaela Vasques de Oliveira

; Carneiro, Thiago Xavier

; Laforga, Violete Petitto

; Cunha, Renato Luiz Guerino

Hematology, Transfusion and Cell Therapy

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dec 2023, Volume 45 N. 4 Pages 417 - 418

Abstract: En | Text: En | PDF: En

https://doi.org/10.1016/j.htct.2023.07.001

10.

Alfabetizar no primeiro ano em tempos de pandemia da COVID-19
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Rengifo-Herrera, Francisco José

; Medeiros Marques, Yone Martins

Revista de psicología (Santiago)

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dec 2023, Volume 32 N. 2 Pages 14 - 30

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

Resumo: A leitura como competência cultural requer instrução e ensaio para conduzir para aprendizagens e estratégias cognitivas complexas. Este artigo descreve os processos de aprendizagem e as estratégias de alfabetização em aulas online de 1º ano do ensino fundamental em uma escola pública durante a pandemia de COVID-19. Foram observados uma professora e cinco alunos em duas sessões online. Foi realizada uma análise microgenética dos processos de ensino/aprendizagem. Apesar do lockdown nas escolas, os resultados mostram como o planejamento do ensaio e a repetição, foram importantes estratégias dos professores para alcançar a alfabetização online. A análise e o planejamento das tarefas por parte da professora especialista indicam que as estratégias de ensino online orientaram as crianças para competências de alfabetização eficientes.

Abstract: Reading as cultural competence requires instruction and rehearsal to leads for new learning and more complex cognitive strategies. This paper describes the children's learning processes and teacher's literacy strategies in online classes to 1st year of elementary class in a public school during the COVID-19 outbreak. One teacher and five students in two online class sessions were observed. Microgenetic analyzes of teaching/learning processes was used. Despite the school lockdown and online teaching, results show how planned rehearsal and repetition were important teacher's strategies to achieve literacy learning. Tasks analysis and planning by an expert teacher indicate that the online teaching strategies guided the children to efficient literacy competences.

https://doi.org/10.5354/0719-0581.2023.67555

11.

Response to comments on the management and ethical implications of genetic testing in CADASIL
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Nogueira, Renata

; Couto, Christian Marques

; Oliveira, Pérola de

; Martins, Bernardo José Alvez Ferreira

; Montanaro, Vinicius Viana Abreu

Arquivos de Neuro-Psiquiatria

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nov 2023, Volume 81 N. 11 Pages 1025 - 1026

Abstract: En | Text: En | PDF: En

https://doi.org/10.1055/s-0043-1777067

12.

A Aprendizagem do Estudante de Enfermagem na Prevenção da Sintomatologia Musculosquelética Segundo os Três Domínios de Competências: Estudo Qualitativo
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Firmino, Cristiana Furtado

; Longo, João José Rolo

; Simões, Celeste

; Valentim, Olga

; Marques, Fátima Mendes

Sisyphus - Journal of Education

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oct 2023, Volume 11 N. 2 Pages 208 - 222

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

Abstract The Nursing profession is composed of various domains of knowledge necessary for a comprehensive care of the person throughout his/her life cycle. During the course, nursing students are often exposed to factors that can contribute to the appearance of musculoskeletal symptoms, compromising their academic career. A qualitative, descriptive, and exploratory study was conducted using a focus group of six final-year nursing students. The aim was to understand their perceptions of the pedagogical training and how it contributed to their learning in the prevention of musculoskeletal symptoms. Content analysis was performed according to Bardin (2018). The personal skills domain emerged as the most valued domain, with 15 registration units, followed by the pedagogical domain with 9 registration units, and, finally, the scientific domain with 5 registration units. Pedagogical training was considered by students as crucial for their personal and academic investment.

Resumo A profissão de Enfermagem é constituída por vários domínios do conhecimento necessários para um cuidado integral com a pessoa ao longo da vida. Os estudantes de enfermagem são frequentemente expostos a fatores suscetíveis de contribuir para o aparecimento de sintomatologia musculosquelética, comprometendo, assim, o seu percurso académico. Realizou-se um estudo de natureza qualitativa, descritivo e exploratório, com recurso a um grupo focal de seis estudantes de enfermagem. O objetivo foi o de perceber quais as suas perceções sobre a formação pedagógica e de que forma esta contribuiu para a sua aprendizagem na prevenção de sintomatologia musculosquelética. A análise de conteúdo foi realizada segundo Bardin (2018). O domínio de competências pessoais emergiu como o mais valorizado (15 unidades de registo), seguindo-se o pedagógico (9 unidades de registo) e, por fim, o científico (5 unidades de registo). A formação pedagógica foi considerada pelo estudante como crucial para o seu investimento pessoal e académico.

Resumen La profesión de Enfermería está compuesta por diversas dimensiones de conocimiento necesarios para un cuidado integral de la persona a lo largo de la vida. Los estudiantes de enfermería a menudo están expuestos a factores que pueden contribuir a la aparición de síntomas musculoesqueléticos, comprometiendo así su trayectoria académica. Se realizó un estudio cualitativo, descriptivo y exploratorio, utilizando un grupo focal de seis estudiantes de enfermería. El objetivo era conocer sus percepciones sobre la formación pedagógica y cómo contribuía a su aprendizaje en la prevención de síntomas musculoesqueléticos. El análisis de contenido se realizó según Bardin (2018). El ámbito de las competencias personales resultó ser el más valorado, con 15 unidades de registro, seguido del ámbito pedagógico, con 9 unidades de registro, y, por último, el ámbito científico, con 5 unidades de registro. La formación pedagógica fue considerada por los estudiantes como crucial para su inversión personal y académica.

https://doi.org/10.25749/sis.28507

13.

Temporal trend in the incidence of human visceral leishmaniasis in Brazil
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Santos Júnior, Claudio José dos

; Santos, Marquiony Marques dos

; Lins, Fabio Celso Cipriano de Oliveira

; Silva, Jackson Pinto

; Lima, Kenio Costa de

Ciência & Saúde Coletiva

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2023, Volume 28 N. 9 Pages 2709 - 2719

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

Resumo Trata-se de um estudo ecológico que analisou a tendência temporal das taxas de incidência de leishmaniose visceral no Brasil mediante regressão temporal segmentada por pontos de inflexão. Observou-se tendência de decréscimo na taxa de incidência dessa patologia no país, com variação variação percentual média anual (average annual percent change - AAPC) de -5 (IC95%: -9,1; -0,6) e redução de 1,69 casos/100 mil habitantes em 2007, para 0,91/100 mil habitantes em 2020. A região Centro-Oeste apresentou a maior redução do AAPC (AAPC: -9,1; IC95%: -13,8; -4,3), seguida da região Sudeste (AAPC: -8,7; -14,6; -2,5). As regiões Norte e Sul apresentaram o maior número de pontos de inflexão (joinpoint) na série temporal. As maiores incidências foram registradas na população masculina, porém com tendência estacionária (AAPC: 2,14; IC95%: -8,3; 0). Na análise por faixa etária, a tendência foi decrescente nos grupos de 0 a 4 anos (AAPC: -7,7; IC95%: -12,6; -2,4), 5 a 9 anos (AAPC: -7,3; IC95%: -13,6; -0,4) e de 10 a 14 anos (AAPC: -5,5; IC95%: -10,3; -0,3). Verificou-se que, apesar de a leishmaniose visceral se tratar de uma doença endêmica no Brasil, houve declínio na sua taxa de incidência no período de 2007 a 2020.

Abstract It is an ecological study that analyzed the time trend of visceral leishmaniasis incidence rates in Brazil using segmented time regression by joinpoints. There was a decreasing incidence rate of this disease in the country with an average annual percent change (AAPC) of -5 (CI95%: -9.1; -0.6) and a reduction of 1.69 cases/100 thousand inhabitants in 2007, and 0.91/100 thousand inhabitants in 2020. The Central-West region showed the highest reduction percent (AAPC: -9.1; CI95%: -13.8; -4.3), followed by the Southeast region (AAPC: -8.7; -14.6; -2.5). The North and South regions showed the largest number of joinpoints in the time series. The highest incidences were recorded in the male population, however, stable (AAPC: 2.14; CI95%: -8.3; 0). In the age group analysis, the trend was decreasing for the groups from 0 to 4 years old (AAPC: -7.7; CI95%: -12.6; -2.4), 5 to 9 years old (AAPC: -7.3; CI95%: -13.6; -0,4) and 10 to 14 years old (AAPC: -5.5; CI95%: -10.3; -0.3). It was found that although Visceral Leishmaniasis is an endemic disease in Brazil, there was a decrease in its incidence rate from 2007 to 2020.

https://doi.org/10.1590/1413-81232023289.15422022

14.

RCC - Roller-Compacted Concrete with hematite aggregate
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Carmo, João Bosco Moreira

; Lameiras, Fernando Soares

; Marques Filho, Jose

; Andrade, Walton Pacelli de

REM - International Engineering Journal

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2023, Volume 76 N. 3 Pages 247 - 254

Abstract: En | Text: En | PDF: En

Abstract RCC using hematite as an aggregate has interesting characteristics for use in massive structures or structures for radiation shielding. In Brazil, there is a considerable amount of hematite ore tailings without practical use, which makes this material an environmental problem and a matter of public safety. Thus, the search for alternatives to use these tailings is a priority environmental concern. An RCC containment dam with hematite aggregate was constructed to protect the basin of the Barao de Cocais River, including the city of Barao de Cocais in the State of Minas Gerais in Brazil, from a possible rupture of the Sul Superior tailings dam in the Congo Soco iron mine. Approximately 150,000 m3 of RCC was deposited in three months. In this article, the results of the technological control tests during the construction of the containment are presented and compared with the results of the cores extracted after the construction, showing their coherence and strength performance compared with RCC using conventional aggregate. Also, studies related to the performance of radiation shielding of this RCC are presented. An attenuation of 10% of 1.6 MeV gamma radiation in relation to conventional concrete was observed.

https://doi.org/10.1590/0370-44672022760074

15.

Temporal trend in the incidence of human visceral leishmaniasis in Brazil
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Santos Júnior, Claudio José dos

; Santos, Marquiony Marques dos

; Lins, Fabio Celso Cipriano de Oliveira

; Silva, Jackson Pinto

; Lima, Kenio Costa de

Ciência & Saúde Coletiva

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2023, Volume 28 N. 9 Pages 2709 - 2719

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

https://doi.org/10.1590/1413-81232023289.15422022

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