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Polioencephalomalacia in buffaloes (Bubalusbubalis) in a feedlot
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Silva, Victor Alexandre Nascimento

; Moura, Marcio Alan Oliveira

; Souza, Antonio Elivelton Coutinho de

; Oliveira, Arieli Sousa de

; Cerqueira, Valíria Duarte

; Rivero, Gabriela Riet Correa

; Bezerra Júnior, Pedro Soares

Ciência Rural

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jul 2024, Volume 54 N. 7 elocation e20230220

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

ABSTRACT: Polioencephalomalacia (PEM) is a nervous disease that affects ruminants, has a worldwide distribution and causes significant economic losses. PEM is abundantly described and studied in cattle and small ruminants, but there is little information about the disease in buffaloes, especially in Brazil. The objective of this work is to describe the clinical and pathological aspects of an outbreak of PEM in buffaloes in a feedlot in the state of Pará, Brazil. The outbreak occurred in a flock of 76 Murrah buffaloes, with an average age of five months, in a feedlot. Twenty-eight of these buffaloes became ill, and thirteen showed neurological signs and died. Two buffaloes underwent necropsy. The brain and fragments of various abdominal and thoracic cavity organs were fixed in 10% formalin and sent for histopathological examination. In the frontal, parietal, and occipital telencephalic lobes, the convolutions were flattened and yellowish, and when cut, there was a clear line of demarcation between the superficial and deep layers. Histologically, the intermediate layers of the cerebral cortex showed mild to moderate vacuolization of the neuropil, moderate enlargement of the perivascular, perineuronal, and periastrocyte spaces, moderate swelling and edema of astrocytes, and a large number of necrotic neurons. The work demonstrates that, despite being poorly documented in Brazil, PEM should be considered in the differential diagnosis of neurological syndromes in buffaloes.

RESUMO: Polioencefalomalacia (PEM) é uma doença nervosa complexa que afeta ruminantes, tem distribuição mundial e causa perdas econômicas significativas. A PEM é abundantemente descrita e estudada em bovinos e pequenos ruminantes, porém há poucas informações sobre a doença em bubalinos, especialmente no Brasil. O objetivo deste trabalho é descrever os aspectos clínicos e patológicos de um surto de PEM em búfalos em um confinamento no estado do Pará, Brasil. O surto ocorreu em um lote de 76 búfalos da raça Murrah, com idade média de cinco meses, em um sistema de confinamento. Vinte e oito desses bubalinos adoeceram e treze apresentaram sinais neurológicos e morreram. Dois bubalinos foram submetidos à necropsia. O encéfalo e fragmentos de diversos órgãos da cavidade abdominal e torácica foram fixados em formol a 10% e enviados para exame histopatológico. Nos lobos frontal, parietal e occipital do telencéfalo as circunvoluções estavam achatadas e amareladas e ao corte havia uma clara linha de demarcação entre as camadas superficial e profunda. Na histologia as camadas intermediárias do córtex cerebral apresentavam vacuolização leve a moderada do neurópilo, aumento moderado dos espaços perivascular, perineuronal e periastrocitário, tumefação e edema moderados de astrócitos e grande número de neurônios necróticos. O trabalho demonstra que, apesar de pouco documentada no Brasil, a PEM deve ser considerada no diagnóstico diferencial das síndromes neurológicas em bubalinos.

https://doi.org/10.1590/0103-8478cr20230220

Geophysical key indicators for tailings dam physical integrity monitoring - Brazil
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Sá, Gilvan

; Braga, Marco Antonio

; Almeida, Luiz Antonio Pinto e

; Dias, Leonardo Santana de Oliveira

; Cunha, Alan de Souza

; Rocha, Demetrius Cunha Gonçalves da

; Telles, Ricardo Luiz Teixeira

REM - International Engineering Journal

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dec 2023, Volume 76 N. 4 Pages 363 - 370

Abstract: En | Text: En | PDF: En

Abstract The geotechnical monitoring of tailings dams combined with a suitable application of geophysical electrical methods can improve their structure evaluation, allowing several correlations between direct analyses and the resistivity anomaly pattern. Considering this synergy, twenty-three electrical resistivity sections (ERT) were acquired along the beach, abutments, and central part of a dam, totalizing 10,776 m of dataset. After the interpretation of each ERT section, comparing the anomaly ranges with the water level meters measurements, three resistivity zones were defined: Zones of low resistivity (<64 ohm-m), correlated to regions of high humidity; zones of high resistivity (> 357 ohm-m), interpreted as dry zones, and regions with intermediate resistivity values, located between these limits. The groundwater surface generated from the interpretation of the electrical resistivity dataset and the groundwater surface acquired from the water level gauges were almost coincident. On the right abutment, the conductive anomalies showed remarkable continuity, suggesting a high moisture content in this region with strong gradients (200 mV) directed towards the zone of low resistivity values identified in the sections. The analysis showed a robust correlation of the ERT data with localized physical geotechnical measurements, valuable for monitoring dam integrity, overseeing the structure's response to climate and operational changes, and ultimately mitigating the risks of failure. The results of this study support the adoption of a seasonal 4D electrical resistivity survey as an effective tool to monitor and manage surface and high humidity zones, key indicators of dam integrity throughout the entire structure.

https://doi.org/10.1590/0370-44672022760030

Clinical and pathological aspects of progressive hyperphosphatasemia associated with vacuolar hepatopathy and hepatocellular carcinoma in a Scottish Terrier bitch
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Ribeiro, Paula Reis

; Bianchi, Matheus Viezzer

; Lorenzett, Marina Paula

; Reis, Matheus de Oliveira

; Pöppl, Alan Gomes

; Pavarini, Saulo Petinatti

Ciência Rural

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2023, Volume 53 N. 1 elocation e20210689

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

RESUMO: Hiperfosfatasemia é o aumento sérico de fosfatase alcalina, sendo que Scorrish Terriers estão predispostos a desenvolverem essa condição de patogênese desconhecida. Este trabalho descreve um caso de hiperfosfatasemia progressiva com hepatopatia vacuolar e carcinoma hepatocelular em um canino da raça Scottish Terrier. Uma cadela Scottish Terrier foi acompanhada clinicamente por cinco anos devido à hiperfosfatasemia persistente (até 5503 U/L), com achados ultrassonográficos e histológicos compatíveis com hepatopatia vacuolar, além de posterior desenvolvimento de carcinoma hepatocelular. O painel esteroidogênico realizado indicou aumento dos hormônios adrenocorticais, principalmente progesterona e androstenediona, consistente com diagnóstico de hipercortisolismo subdiagnosticado “atípico”. Devido ao prognóstico desfavorável, a eutanásia foi realizada e na necropsia, massas amarelas a vermelhas e multinodulares foram observadas no fígado, com diagnóstico de carcinoma hepatocelular pela análise histológica e imuno-histoquímica. A associação dos achados clínicos, de imagem, bioquímicos, do painel androgênico e patológicos permitiram caracterizar e confirmar um distúrbio progressivo no canino da raça Scottish Terrier associado ao aumento dos hormônios adrenocorticais.

ABSTRACT: Hyperphosphatasemia refers to an increase in alkaline phosphatase serum activity, and Scottish Terriers (STs) are predisposed to develop this condition of uncertain pathogenesis. This study describes a case of progressive hyperphosphatasemia with vacuolar hepatopathy and hepatocellular carcinoma (HCC) in a ST bitch. This dog had a five-year clinical follow-up with progressive hyperphosphatasemia (up to 5503 U/L) and with ultrasound findings and histologic diagnosis of vacuolar hepatopathy, in addition to posterior onset of HCC. A steroidogenic adrenal panel revealed an increase of adrenocortical hormones, especially progesterone and androstenedione, consistent with a subdiagnosed hypercortisolism. Euthanasia was elected and at necropsy, multinodular, yellow to red masses were observed in the liver, which were histologically and immunohistochemically defined as HCC. The association of the clinical, imaging, biochemical, adrenal panel and pathologic findings allowed to characterize and confirm a progressive disorder in this ST bitch associated with elevated adrenocortical hormones.

https://doi.org/10.1590/0103-8478cr20210689

National Vaccine Coverage Survey 2020: methods and operational aspects
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Barata, Rita Barradas

; França, Ana Paula

; Guibu, Ione Aquemi

; Vasconcellos, Maurício Teixeira Leite de

; Moraes, José Cássio de

; Teixeira, Maria da Gloria Lima Cruz

; Domingues, Carla Magda Alan

; Borges, Maria Fernanda de Souza Oliveira

; de Azevedo, Roberta Nogueira Calandrini

; de Oliveira, Consuelo Silva

; Oliveira, Andrea de Nazaré Marvão

; Canales, Ivy Thereza

; Nascimento, Valdir

; Queiroz, Rejane Christine de Souza

; Lima, Luísa Helena de Oliveira

; Ramos Jr, Alberto Novaes

; Barbosa, Jaqueline Caracas

; Mirabal, Isabelle Ribeiro Barbosa

; Meira, Meiruska

; Antunes, Maria Bernadete de Cerqueira

; Teixeira, Maria Denise de Castro

; Gurgel, Ricardo Queiroz

; de Carvalho, Martha Suely Itaparica

; Cesar, Tayñana

; Maciel, Ethel Leonor Noia

; da Gama, Silvana Granado Nogueira

; Luhm, Karin Regina

; Boing, Antônio Fernando

; Mengue, Sotero Serrate

; de Oliveira, Sandra Maria do Valle Leone

; Lima, Jaqueline Costa

; Teles, Sheila Araújo

; Caetano, Karlla Antonieta Amorim

; de Araújo, Wildo Navegantes

Revista Brasileira de Epidemiologia

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2023, Volume 26 elocation e230031

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

RESUMO Objetivo: Inquérito nacional de cobertura vacinal aos 12 e 24 meses de idade foi realizado para investigar as quedas nas coberturas a partir de 2016. Métodos: Amostra de 37.836 nascidos vivos das coortes de 2017 e 2018 residentes nas capitais, Distrito Federal (DF) e 12 cidades com mais de 100 mil habitantes, acompanhados nos primeiros 24 meses por registros nas cadernetas de vacinação. Setores censitários foram estratificados segundo condições socioeconômicas, e o mesmo número de crianças foi incluído para cada estrato. Calcularem-se coberturas vacinais de cada vacina e coberturas completas aos 12 e 24 meses, doses aplicadas, válidas e oportunas. Fatores familiares, maternos e da criança associados à cobertura foram pesquisados. Os motivos para não vacinar analisados foram: contraindicações médicas, dificuldades de acesso, problemas no funcionamento do programa e hesitação vacinal. Resultados: Os resultados preliminares mostram que menos de 1% das crianças não foram vacinadas, as coberturas pelo esquema completo são menores que 75% em todas as capitais e no DF, as vacinas com mais de uma dose perdem cobertura progressivamente, há diferenças entre os estratos socioeconômicos, favoráveis aos estratos mais altos em algumas cidades e aos estratos mais baixos em outras. Conclusão: Houve realmente redução da cobertura vacinal em todas as capitais e no DF para as crianças nascidas em 2017 e 2018, denotando piora na execução do Programa Nacional de Imunizações durante os anos de 2017 a 2019. O inquérito realizado não mensurou os impactos da pandemia de COVID-19 que podem ter reduzido ainda mais as coberturas vacinais.

ABSTRACT Objective: The national vaccination coverage survey on full vaccination at 12 and 24 months of age was carried out to investigate drops in coverage as of 2016. Methods: A sample of 37,836 live births from the 2017 or 2018 cohorts living in capital cities, the Federal District, and 12 inner cities with 100 thousand inhabitants were followed for the first 24 months through vaccine record cards. Census tracts stratified according to socioeconomic levels had the same number of children included in each stratum. Coverage for each vaccine, full vaccination at 12 and 24 months and number of doses administered, valid and timely, were calculated. Family, maternal and child factors associated with coverage were surveyed. The reasons for not vaccinating analyzed were: medical contraindications, access difficulties, problems with the program, and vaccine hesitancy. Results: Preliminary results showed that less than 1% of children were not vaccinated, full coverage was less than 75% at all capitals and the Federal District, vaccines requiring more than one dose progressively lost coverage, and there were inequalities among socioeconomic strata, favorable to the highest level in some cities and to the lowest in others. Conclusion: There was an actual reduction in full vaccination in all capitals and the Federal District for children born in 2017 and 2018, showing a deteriorating implementation of the National Immunization Program from 2017 to 2019. The survey did not measure the impacts of the COVID-19 pandemic, which may have further reduced vaccination coverage.

https://doi.org/10.1590/1980-549720230031

The use of numerical modelling to assess soil water dynamics in subsurface irrigation
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Rocha, Mayara Oliveira

; Teixeira, Adunias dos Santos

; Silva Filho, Francisco das Chagas da

; Gondim, Rubens Sonsol

; Sousa, Alan Bernard Oliveira de

Revista Ciência Agronômica

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2023, Volume 54 elocation e20217808

Abstract: En | Text: En | PDF: En

ABSTRACT Knowledge of soil water dynamics is essential for establishing appropriate methods of irrigation management. Water dynamics in unsaturated soils is a complex process that can be explained by the Richards equation. As this is a non-linear differential equation, there is no analytical solution, but requires the use of the finite element method, for example, to obtain solutions, where simulations using numerical modelling make it possible to predict the the flow of water from the soil. As such, the aim of this study was to evaluate a 2D numerical model in simulating water distribution and wet bulb formation resulting from a subsurface irrigation system, in addition to validating the generated model. The Pearson correlation coefficient (r), the coefficient of determination (R2) and the root-mean-square error (RMSE) were calculated. For each treatment, both during and after irrigation, the model showed a small relative error, high values for R2 and a positive correlation with the field data. It was concluded that the model is applicable to the design and management of subsurface irrigation systems, varying the installation depth of the drip tube, the spacing between emitters and the soil moisture, giving good results for the various simulated scenarios.

https://doi.org/10.5935/1806-6690.20230034

National Vaccine Coverage Survey 2020: methods and operational aspects
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Barata, Rita Barradas

; França, Ana Paula

; Guibu, Ione Aquemi

; Vasconcellos, Maurício Teixeira Leite de

; Moraes, José Cássio de

; Teixeira, Maria da Gloria Lima Cruz

; Domingues, Carla Magda Alan

; Borges, Maria Fernanda de Souza Oliveira

; de Azevedo, Roberta Nogueira Calandrini

; de Oliveira, Consuelo Silva

; Oliveira, Andrea de Nazaré Marvão

; Canales, Ivy Thereza

; Nascimento, Valdir

; Queiroz, Rejane Christine de Souza

; Lima, Luísa Helena de Oliveira

; Ramos Jr, Alberto Novaes

; Barbosa, Jaqueline Caracas

; Mirabal, Isabelle Ribeiro Barbosa

; Meira, Meiruska

; Antunes, Maria Bernadete de Cerqueira

; Teixeira, Maria Denise de Castro

; Gurgel, Ricardo Queiroz

; de Carvalho, Martha Suely Itaparica

; Cesar, Tayñana

; Maciel, Ethel Leonor Noia

; da Gama, Silvana Granado Nogueira

; Luhm, Karin Regina

; Boing, Antônio Fernando

; Mengue, Sotero Serrate

; de Oliveira, Sandra Maria do Valle Leone

; Lima, Jaqueline Costa

; Teles, Sheila Araújo

; Caetano, Karlla Antonieta Amorim

; de Araújo, Wildo Navegantes

Revista Brasileira de Epidemiologia

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2023, Volume 26 elocation e230031

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

https://doi.org/10.1590/1980-549720230031

Desempenho do Escore Pediátrico de Alerta (EPA) de deterioração clínica
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Oliveira, Thaiane de Lima

; Miranda, Juliana Freitas Oliveira

; Monaghan, Alan Peter

; Silva, Renata Costa

; Santana, Ana Kelly de Araujo

; Silva, Marina Vieira

; Bessa Junior, José de

; Ribeiro, Ana Paloma Martins Rocha

Acta Paulista de Enfermagem

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2023, Volume 36 elocation eAPE00872

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

Abstract Objective To assess the Pediatric Alert Score (EPA) accuracy, usefulness, reproducibility and applicability in identifying clinical deterioration in hospitalized children and adolescents. Methods This is a prospective diagnostic test study, carried out between October/2018 and October/2019, to measure EPA diagnostic accuracy in a sample of 240 children, and its reproducibility and applicability in a sample of 60 children. Data were processed and analyzed on MedCalc and VassarStats.net. Results At cut-off point ≥ 3, the score had a sensitivity of 73.6%, specificity of 95.7%, positive predictive value of 83%, negative predictive value of 92.7, area under the ROC curve of 93.6%, estimated prevalence of 19.6%, positive probability ratio of 17.1, positive post-test probability of 77.8%, simple Kappa of 0.946. Conclusion The study provides evidence on EPA high accuracy, usefulness and reproducibility in identifying clinical deterioration in a Brazilian pediatric hospital setting, and considered the instrument applicable in the context of the research.

Resumen Objetivo Evaluar la precisión, utilidad, reproducibilidad y aplicabilidad del Sistema de Alerta Precoz Infantil (SAPI) en la identificación del deterioro clínico en niños y adolescentes hospitalizados. Métodos Estudio de prueba diagnóstica, prospectiva, realizada entre octubre de 2018 y octubre de 2019, para medir la precisión diagnóstica del SAPI en una muestra de 240 niños y su reproducibilidad y aplicabilidad en una muestra de 60 niños. Los datos fueron procesados y analizados en MedCalc y VassarStats.net. Resultados En el punto de corte ≥ 3, el puntaje presentó una sensibilidad del 73,6 %, especificidad del 95,7 %, valor predictivo positivo del 83 %, valor predictivo negativo de 92,7, área bajo la curva ROC del 93,6 %, prevalencia estimada por la prueba del 19,6 %, razón de probabilidad positiva 17,1, probabilidad posprueba positiva del 77,8 %, kappa simple de 0,946. Conclusión El estudio presenta evidencias sobre la elevada precisión, utilidad y reproducibilidad del SAPI en la identificación del deterioro clínico en un escenario hospitalario pediátrico brasileño, por lo que el instrumento se consideró aplicable en el contexto de la investigación.

Resumo Objetivo Avaliar a acurácia, utilidade, reprodutibilidade e aplicabilidade do Escore Pediátrico de Alerta (EPA) na identificação da deterioração clínica em crianças e adolescentes hospitalizados. Métodos Estudo de teste diagnóstico, prospectivo, realizado entre outubro/2018 a outubro/2019, para medir a acurácia diagnóstica do EPA em uma amostra de 240 crianças, e sua reprodutibilidade e aplicabilidade em uma amostra de 60 crianças. Os dados foram processados e analisados no MedCalc e VassarStats.net. Resultados No ponto de corte ≥ 3, o escore apresentou sensibilidade de 73,6%, especificidade de 95,7%, valor preditivo positivo de 83%, valor preditivo negativo de 92,7, área sob a curva ROC de 93,6%, prevalência estimada pelo teste de 19,6%, razão de probabilidade positiva 17,1, probabilidade pós-teste positivo de 77,8%, kappa simples de 0,946. Conclusão O estudo fornece evidências sobre a elevada acurácia, utilidade e reprodutibilidade do EPA na identificação da deterioração clínica em um cenário hospitalar pediátrico brasileiro, e considerou o instrumento aplicável no contexto da pesquisa.

https://doi.org/10.37689/acta-ape/2023ao00872

Performance of potential parents for a rainfed tropical wheat breeding program
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Teixeira, Camila Helena

; Fernandes, Maiara Oliveira

; Chaves, Alan Diego do Rosário

; Almeida, Brena Kelly da Silva

; Savioli, Giovane Bruno

; Martins, Fábio Aurélio Dias

; Padua, José

; Condé, Aurinelza Batista Teixeira

; Nunes, Jose Airton Rodrigues

Crop Breeding and Applied Biotechnology

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2023, Volume 23 N. 3 elocation e45452336

Abstract: En | Text: En | PDF: En

Abstract The aim of this study was to evaluate the genetic variability and performance of the agronomic traits of wheat cultivars in the southern region of Minas Gerais for the purpose of choosing parents for a rainfed wheat breeding program. We evaluated 78 wheat cultivars in two locations in Minas Gerais regarding different agronomic traits. The statistical analyses were carried out using Henderson’s mixed-model approach. The genetic values of the cultivars were predicted, and the heritabilities and accuracies were estimated for selection of cultivars. The cultivar × location interaction was decomposed into its simple and complex fractions. The genetic and environmental correlations between the traits were estimated, and selection was made for multiple traits using the sum of the standardized variables (Z-index). The genetic variance was significant for all the traits, and the cultivar × location interaction was significant. By the Z-index, 15 wheat cultivars more adapted were identified.

https://doi.org/10.1590/1984-70332023v23n3a29

From coconut waste to the production of cementitious composites as an alternative for civil construction
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Silva, Fernanda Monique da

; Scatolino, Mario Vanoli

; Paula, Edgley Alves de Oliveira

; Almeida, Vanessa Gentil de Oliveira

; Albuquerque, Felipe Bento de

; Vieira, Ricardo Alan da Silva

; Souza, Joalis Barbalho de

; Pedrosa, Talita Dantas

; Rodolfo Junior, Francisco

; Melo, Rafael Rodolfo de

Matéria (Rio de Janeiro)

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2023, Volume 28 N. 3 elocation e20220146

Abstract: En | Text: En | PDF: En

ABSTRACT Economic development based on cleaner industrial technologies has been increasingly studied in recent years. Cementitious composites reinforced with lignocellulosic fibers can be a sustainable alternative for use in engineering. The study aimed to evaluate the technological properties of cementitious composites produced from natural and industrial coconut fiber to compare the reinforcement with wood particles. Physical tests (density, water absorption, and thickness swelling) and mechanical tests (static bending) were carried out in four treatments, which varied the fiber and cement contents. It was found that treatment with natural coconut fiber had the lowest density value, 0.59 g/cm3, and treatment with industrial coconut fiber had the lowest water absorption value for the times and times of 2 and 24 h, 0.19, and 0.38%, respectively, and the treatment with wood particles, the highest values of modulus of elasticity and rupture, 1,897 MPa and 2.44 MPa. The study of the use of lignocellulosic materials as protection in cementitious composites is essential for applications in building constructions to reduce the environmental impacts generated by the generation of waste and use of non-renewable materials and to promote sustainable development.

https://doi.org/10.1590/1517-7076-rmat-2023-0146

10.

Contribution of public oral pathology services to the diagnosis of oral and oropharyngeal cancer in Brazil
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LOUREDO, Brendo Vinicius Rodrigues

; CURADO, Maria Paula

; PENAFORT, Paulo Victor Mendes

; DE ARRUDA, José Alcides Almeida

; ABREU, Lucas Guimarães

; MESQUITA, Ricardo Alves

; PINTO-JÚNIOR, Décio dos Santos

; ABRAHÃO, Aline Corrêa

; ANDRADE, Bruno Augusto Benevenuto de

; AGOSTINI, Michelle

; MORAES, Renata Mendonça

; ANBINDER, Ana Lia

; DOURADO, Pedro Henrique Silva

; SANTOS, Teresa Cristina Ribeiro Bartholomeu dos

; PIRES, Fábio Ramoa

; BORDIGNON, Natalia Cristina Trentin

; GONDAK, Rogério Oliveira

; DE OLIVEIRA, Marcia Gaiger

; CARRARD, Vinicius Coelho

; MARTINS, Manoela Domingues

; SOUSA-NETO, Sebastião Silvério

; ARANTES, Diego Antônio Costa

; MENDONÇA, Elismauro Francisco

; CIESLAK-SANCHES, Silvia Roberta

; ANTUNES, Daniella Moraes

; AMARAL-SILVA, Gleyson Kleber do

; MANIERI, Patricia Rubia

; RAMALHO, Luciana Maria Pedreira

; DOS SANTOS, Jean Nunes

; LEONEL, Augusto César Leal da Silva

; PEREZ, Danyel Elias da Cruz

; VERHEUL, Hannah Carmem Carlos Ribeiro Silva

; BARROSO, Keila Martha Amorim

; RODRIGUES, Flávia Luiza Santos

; GONZAGA, Amanda Katarinny Goes

; FERNANDES, Romana Renery

; DE SOUZA, Lélia Batista

; SOUZA, Lucas Lacerda de

; PONTES, Flávia Sirotheau Corrêa

; PONTES, Hélder Antônio Rebelo

; SILVA, Caroline Alfaia

; CÂMARA, Jeconias

; LIBÓRIO-KIMURA, Tatiana Nayara

; SANTOS-SILVA, Alan Roger

; LOPES, Márcio Ajudarte

; ALMEIDA, Oslei Paes de

; ROMAÑACH, Mário José

; VARGAS, Pablo Agustin

Brazilian Oral Research

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2023, Volume 37 elocation e126

Abstract: En | Text: En | PDF: En

Abstract This study aimed to evaluate the contribution of oral and maxillofacial pathology laboratories (OMPLs) in Brazilian public universities to the diagnosis of lip, oral cavity, and oropharyngeal squamous cell carcinoma (SCC). A cross-sectional study was performed using biopsy records from a consortium of sixteen public OMPLs from all regions of Brazil (North, Northeast, Central-West, Southeast, and South). Clinical and demographic data of patients diagnosed with lip, oral cavity, and oropharyngeal SCC between 2010 and 2019 were collected from the patients’ histopathological records. Of the 120,010 oral and maxillofacial biopsies (2010-2019), 6.9% (8,321 cases) were diagnosed as lip (0.8%, 951 cases), oral cavity (4.9%, 5,971 cases), and oropharyngeal (1.2%, 1,399 cases) SCCs. Most cases were from Brazil’s Southeast (64.5%), where six of the OMPLs analyzed are located. The predominant profile of patients with lip and oral cavity SCC was Caucasian men, with a mean age over 60 years, low schooling level, and a previous history of heavy tobacco consumption. In the oropharyngeal group, the majority were non-Caucasian men, with a mean age under 60 years, had a low education level, and were former/current tobacco and alcohol users. According to data from the Brazilian National Cancer Institute, approximately 9.9% of the total lip, oral cavity, and oropharyngeal SCCs reported over the last decade in Brazil may have been diagnosed at the OMPLs included in the current study. Therefore, this data confirms the contribution of public OMPLs with respect to the important diagnostic support they provide to the oral healthcare services extended by the Brazilian Public Health System.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0126

11.

Efeito da temperatura e pressão nas propriedades da liga de titânio Ti-6Aℓ-4V produzida a partir da metalurgia do pó
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Silva Vieira, Ricardo Alan da

; Fonseca, Erbenia Taciane Fernandes da

; Silva Júnior, Manoel Quirino da

; Oliveira Paula, Edgley Alves de

; Silva, Fernanda Monique da

; Albuquerque, Felipe Bento de

; Souza, Joalis Barbalho de

; Rusch, Fernando

; Scatolino, Mário Vanoli

; Melo, Rafael Rodolfo de

Matéria (Rio de Janeiro)

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2023, Volume 28 N. 3 elocation e20230196

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

ABSTRACT Were characterized microstructurally and mechanically the Ti-6Aℓ-4V alloy obtained through powder metallurgy in an uncontrolled atmosphere, varying the sintering parameters, arose. The samples were compacted in a uniaxial press at 874 MPa, 999 MPa, and 1124 MPa, and sintered without a protective atmosphere or vacuum, at 675 °C, 750 °C, and 850 °C. When sintering the material, the oxides influenced the results due to titanium’s high affinity for interstitial elements, promoting increased density and high hardness values. Based on the results, the treatment carried out at a pressure of 1124 MPa and a temperature of 750 °C showed the highest hardness in the beta phase (β), with a value of 1165.1 HV. In the alpha phase (α), the highest value was 1321.3 HV, presented by the treatment performed at a pressure of 999 MPa and a temperature of 850 °C. The high hardness values observed in the alloy are associated with the reinforcement promoted by the dissolution of Fe atoms. Materials with high hardness values use in the aerospace and biomedical industries, which always look for better mechanical resistance results, thus increasing their products’ useful life and applicability.

RESUMO Foram caracterizadas micro estruturalmente e mecanicamente a liga Ti-6Aℓ-4V obtida através da metalurgia do pó em atmosfera não controlada variando os parâmetros de sinterização. As amostras foram compactadas em uma prensa uniaxial à 874 MPa, 999 MPa e 1124 MPa, e sinterizadas sem atmosfera protetora ou vácuo, nas temperaturas de 675 °C, 750 °C e 850 °C. Ao sinterizar o material, houve influência dos óxidos nos resultados devido à alta afinidade que o titânio tem por elementos intersticiais, promovendo um aumento na densidade e elevados valores de dureza. A partir dos resultados verificou-se que o tratamento realizado na pressão de 1124 MPa e temperatura de 750 °C foi o que apontou a maior dureza na fase beta (β), sendo o valor de 1165,1 HV. Na fase alfa (α), o maior valor foi de 1321,3 HV, apresentado pelo tratamento realizado na pressão de 999 MPa e temperatura de 850 °C. Os elevados valores na dureza observados na liga estão associados ao reforço promovido pela dissolução átomos de Fe. Materiais com elevada dureza possuem uma vasta aplicação nas indústrias aeroespaciais e biomédicas, que buscam sempre por melhores resultados de resistência mecânica, aumentando assim a vida útil e a aplicabilidades de seus produtos.

https://doi.org/10.1590/1517-7076-rmat-2023-0196

12.

Comparative analysis of the biocompatibility of endothelial cells on surfaces treated by thermal plasma and cold atmospheric plasma
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SOUZA, ALAN MAX T. DE

; BRAZ, JANINE KARLA F. DA SILVA

; MARTINS, GABRIEL M.

; VITORIANO, JUSSIER DE OLIVEIRA

; G.A. NETO, AURÉLIO

; NERY, DAVID M.

; SABINO, VLADIMIR G.

; LUCENA, EUDES E. DE SOUZA

; ROCHA, HUGO ALEXANDRE DE OLIVEIRA

; BARBOZA, CARLOS AUGUSTO G.

; A. JÚNIOR, CLODOMIRO

; MOURA, CARLOS EDUARDO B. DE

Anais da Academia Brasileira de Ciências

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2023, Volume 95 N. 3 elocation e20220865

Abstract: En | Text: En | PDF: En

Abstract In recent years, cold atmospheric plasma (CAP) is used for surface disinfection. However, little is known about its ability to improve biocompatibility of metallic surfaces when compared to thermal plasma methods. In this context, the study aimed to evaluate the response of human endothelial cells (Ea.hy926) on titanium surfaces treated by non-thermal plasma method and thermal plasma method under nitriding atmosphere. The wettability was characterized by the sessile drop method, the topography and roughness were evaluated by atomic force microscopy (AFM), and the microstructure by grazing angle X-ray diffraction (GIXRD). Endothelial cells were cultured and evaluated for morphology by scanning electron microscopy and viability by an MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) assay. CAP treatment reduced the contact angle of the Ti surface (13.43° ± 1.48; p<0.05), increasing hydrophilicity. Rz roughness was higher on the nitrided surface (220.44±20.30; p< 0.001) compared to the CAP treated surfaces (83.29 ± 11.61; p< 0.001) and polished (75.98 ±34.21a); p<0.001). The different applied plasma treatments created different titanium surfaces improving the biocompatibility of endothelial cells, however CAP results demonstrate its potential for biomedical applications, considering the low cost and ease of use of the technique, allowing surface treatments before clinical procedures.

https://doi.org/10.1590/0001-3765202320220865

13.

Affective and cognitive empathy among university students of the health field, exact sciences, and humanities: A cross-sectional study
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Santos, Jaiel Bispo dos

; Farias, Warlla Melo de

; Fermoseli, André Fernando de Oliveira

; Maximiano-Barreto, Madson Alan

Estudos de Psicologia (Campinas)

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2023, Volume 40 elocation e220076

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

Abstract Objective The aim of the present study was to compare levels of affective and cognitive empathy among university students of the health field, exact sciences, and humanities. Method A cross-sectional study was conducted in an online format with the participation of 519 students of the health field, exact sciences, and humanities. Data collection involved the use of a sociodemographic questionnaire and the Multidimensional Interpersonal Reactivity Index. Results The female sex predominated the overall sample (74.4%). Statistically significant differences were found regarding total empathy as well as the affective and cognitive domains. Students of in the health field had the highest levels of total and affective empathy. Students of the exact sciences had higher levels of cognitive empathy compared to those in the health sciences and humanities. Conclusion In conclusion, students of the health sciences have higher levels of empathy and the affective domain, whereas those of the exact sciences have higher levels of cognitive empathy.

Resumo Objetivo Comparar os níveis de empatia afetiva e cognitiva entre estudantes universitárias das áreas da saúde, exatas e humanas foi o objetivo desse estudo. Método Trata-se de um estudo transversal realizado de forma on-line com a participação de 519 estudantes das humanas, saúde e exatas. Os dados foram coletados através de um questionário sociodemográfico e a Escala Multidimensional de Reatividade Interpessoal. Resultados Os estudantes eram predominantemente do sexo feminino (74,4%). Diferença estatisticamente significativa foram identificadas na comparação da empatia total e dos domínios afetivo e cognitivo. Os estudantes da saúde apresentam maiores níveis de empatia total e empatia afetiva. Enquanto o domínio cognitivo é apresentado em maiores níveis pelos estudantes das exatas comparado aos da saúde e humanas. Conclusão Conclui-se que os estudantes de saúde apresentam maiores níveis da empatia e do domínio afetivo, enquanto os estudantes das exatas apresentam maiores níveis da empatia cognitiva.

https://doi.org/10.1590/1982-0275202340e220076

14.

Hemochromatosis-like disease in Brazilian tapirs (Tapirus terrestris) in Pará state, Brazil
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LIMA, Adrielli Heloise dos Anjos

; NETO, Américo Meirelles

; CARDOSO, Rosekelly de Jesus

; SARMENTO, Natalia Maxine F. P.

; OLIVEIRA, Arieli Sousa de

; MOURA, Márcio Alan Oliveira

; GONZALEZ, Gerson Bladimir Escobar

; RIET-CORREA, Gabriela

; SOARES, Manoel Ananis Lopes

; BEZERRA JUNIOR, Pedro Soares

; AMARAL, Alessandra Scofield

; CERQUEIRA, Valíria Duarte

Acta Amazonica

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dec 2022, Volume 52 N. 4 Pages 303 - 306

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

RESUMO Relatamos dois casos de hemocromatose símile em antas brasileiras, Tapirus terrestris mantidas em cativeiro no estado do Pará, Brasil. Ambas apresentavam lesões de hepatopatia crônica e acentuada, associadas a acúmulo acentuado de hemossiderina. A coloração de Perls demonstrou acúmulo acentuado de ferro nos macrófagos do espaço porta, células de Kupffer e, em menor extensão, hepatócitos na região periportal. Havia, ainda, fibrose portal marcada evidenciada por tricrômico de Masson. Os mecanismos patológicos da doença em antas ainda não estão bem estabelecidos e tem sido sugerido que a espécie apresenta diferentes mecanismos de absorção e eliminação de ferro, sendo sensíveis à elevação dos níveis dietéticos desse metal. Existem dois relatos anteriores da doença em T. terrestres em zoológicos na Austrália e na Escócia. Este é o primeiro relato da doença em antas no Brasil.

ABSTRACT We report two cases of hemochromatosis-like disease in captive Brazilian tapirs, Tapirus terrestris in Pará state, Brazil. Both animals presented symptoms of chronic hepatopathy associated with marked accumulation of hemosiderin. The coloration of Perls demonstrated pronounced iron accumulation in macrophages in the portal space, Kupffer cells, and, to a lesser extent, in the hepatocytes of the periportal region. Marked portal fibrosis was evidenced by Masson’s trichrome. The pathological mechanisms of this disease in tapirs are not yet well established. It has been suggested that the species may have different mechanisms of iron absorption and elimination, rendering them sensitive to elevation in dietary levels of this metal. Two previous reports of this disease in T. terrestris exist from zoos in Australia and Scotland. This is the first report of this disease in tapirs in Brazil based on histopathological and histochemical findings.

https://doi.org/10.1590/1809-4392202103581

15.

[SciELO Preprints] - PROFESSIONAL TRAINING OF THE GRADUATE IN CHEMISTRY: PERSPECTIVES FOR THEIR FUTURE FIELD OF ACTIVITY
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Castro, Alan Stampini Benhame de Paula, Hauster Maximiler Campos de Chagas, Francielle De Oliveira Benhami, Bruna Medina

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Publication date: 2022-10-20

Abstract: En Es Pt

This work is part of a case study on newly graduated students with a maximum of 5 years of the Degree in Chemistry at the Universidade do Estado de Minas Gerais – Ubá unit - MG. We analyzed the school and academic trajectories as well as the future performance in the job market so far. We adopted a qualitative approach seeking the reality of the professional profile of the graduate in Chemistry. The exploratory research method was used through the application of two semi-structured questionnaires aimed at professionals trained in a degree in Chemistry who work or not as teachers. In our analysis, the vast majority, about 85% of respondents, have a paid activity related to chemistry, either as a teacher or chemist in the industry. The academic conditions of the institution were analyzed according to the academic preparation of the graduates. Highlights, such as the integration of graduates into the academic and industrial labor market, are favorable to the academic quality of the institution. The portraits point to a formative trajectory between social and academic integration, favored by the teaching, research and extension projects offered at the university.

Este estudio de caso se trata de estudiantes recién graduados con un máximo de 5 años de la Licenciatura en Química de la Universidade do Estado de Minas Gerais - unidad de Ubá - MG. Analizamos las trayectorias escolares y académicas, así como el desempeño futuro en el mercado laboral hasta el momento. Adoptamos un enfoque cualitativo buscando la realidad del perfil profesional del licenciado en Química. Se utilizó el método de investigación exploratoria mediante la aplicación de dos cuestionarios semiestructurados dirigidos a profesionales formados en la carrera de Química que se desempeñen o no como docentes. En nuestro análisis, la gran mayoría, alrededor del 85% de los encuestados, tiene una actividad remunerada relacionada con la química, ya sea como docente o químico en la industria. Se analizaron las condiciones académicas de la institución de acuerdo a la preparación académica de los egresados. Destacados, como la integración de los egresados al mercado laboral académico e industrial, son favorables a la calidad académica de la institución. Los retratos apuntan a una trayectoria formativa entre la integración social y académica, favorecida por los proyectos de docencia, investigación y extensión que ofrece la universidad.

Este estudo de caso é sobre alunos recém-formados com um máximo de 5 anos do curso de Licenciatura em Química pela Universidade do Estado de Minas Gerais – unidade de Ubá – MG. Analisamos as trajetórias escolares e acadêmicas bem como a futura atuação no mercado de trabalho até o momento. Adotamos uma abordagem qualitativa buscando a realidade do perfil profissional do formado em Licenciatura em Química. Utilizou-se o método de pesquisa exploratória através da aplicação de dois questionários semiestruturados direcionados a profissionais formados em Licenciatura em Química que atuam ou não como professores. Em nossa análise a imensa maioria, cerca de 85% dos entrevistados, exercem atividade remunerada relacionada à química, seja como professor ou químico na indústria. Analisou-se as condições acadêmicas da instituição de acordo com o preparo acadêmico dos licenciados. Os pontos em destaque, como a integração dos licenciados no mercado de trabalho acadêmico e industrial, são favoráveis a qualidade acadêmica da instituição. Os retratos apontam uma trajetória formativa entre a integração social e acadêmica, favorecida pelos projetos de ensino, pesquisa e extensão oferecidos na universidade.

https://doi.org/10.1590/SciELOPreprints.4416

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