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Effect of accelerated weathering environment on the carbon fiber/polyamide 6 composites
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Montagna, Larissa Stieven

; Morgado, Guilherme Ferreira de Melo

; Marini, Juliano

; Montanheiro, Thaís Larissa do Amaral

; Guimarães, Alessandro

; Passador, Fabio Roberto

; Rezende, Mirabel Cerqueira

Polímeros

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2023, Volume 33 N. 3 elocation e20230032

Abstract: En | Text: En | PDF: En

Abstract Prolonged exposure to environmental conditions such as ultraviolet radiation, humidity, and temperature, to which carbon fiber-reinforced thermoplastic polymer components are exposed during their service life, can lead to significant changes in mechanical, physical, and chemicals properties, and can often be irreversible, resulting in premature component failure. This study presents the influence of accelerated weathering exposure times (400 h, 800 h, and 1200 h) on the mechanical, thermal, and structural properties of carbon fiber (CF)/polyamide 6 (PA6) laminates. Analyses of composite surfaces were carried out using microscopy and contact angle measurements, which indicated that the factors of exposure to accelerated only affected the surface of the composites, showing signs of the beginning of degradation. The tensile strength (609 MPa ± 10 MPa) and interlaminar shear strength (27 MPa ± 0.9 MPa) did not present significant changes, showing that the reinforcement, the matrix, and the interface remained stable after exposure to accelerated.

https://doi.org/10.1590/0104-1428.20230062

Ser orientador na pós-graduação: reflexões sobre a pesquisa narrativa pósgraduação pós graduação pós-graduação
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Melo, Alessandro de

Revista Brasileira de Educação

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2023, Volume 28 elocation e280028

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

RESUMO A partir de reflexões da perspectiva narrativa em pesquisa em educação, o artigo procura realizar um exercício teórico-prático sobre um percurso de dez anos como orientador na pós-graduação em Educação, focando a reflexão da prática de orientação nas pesquisas com sujeitos em suas práticas sociais e educacionais. O texto comporta duas estratégias de exposição: uma teórica sobre o paradigma narrativo e outra narrativa sobre as experiências de orientação. Ao fim, faz-se uma síntese desse percurso, com a qual se pretende auxiliar outros professores nas reflexões sobre essa prática importante na universidade. educação teóricoprático teórico prático pósgraduação pós graduação Educação educacionais exposição fim fazse faz universidade

RESUMEN A partir de reflexiones de la perspectiva narrativa en la investigación en educación, el artículo busca realizar un ejercicio teórico-práctico acerca del curso de diez años como supervisor de posgrado en Educación, centrándose en la reflexión de la práctica de la supervisión en investigaciones con sujetos en sus prácticas sociales y educativas. El texto incluye dos estrategias de exposición: una exposición teórica sobre el paradigma narrativo y una exposición narrativa sobre las experiencias de supervisión. Al final se hace una síntesis de este camino, con el que se pretende ayudar a otros profesores en las reflexiones sobre esta importante práctica en la universidad. educación teóricopráctico teórico práctico Educación educativas camino universidad

ABSTRACT Based on reflections from the narrative perspective in research in education, the article seeks to carry out a theoretical-practical exercise on the course of ten years as an advisor in postgraduate in Education, focusing on the reflection of the practice of guidance in research with subjects in their social and educational practices. The text includes two strategies of exposition: a theoretical on the narrative paradigm and a narrative on the orientation experiences. At the end, there is a synthesis of this path, with which it is intended to assist other teachers in reflecting on this important practice at the university. education theoreticalpractical practical Education practices exposition experiences end path university

https://doi.org/10.1590/s1413-24782023280028

VIOLÊNCIA NO TRABALHO: VIVÊNCIAS E ESTRATÉGIAS DE ENFRENTAMENTO POR ENFERMEIROS DE UNIDADES DE PRONTO ATENDIMENTO
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De Souza Oliveira, Camila

; Quina Galdino, Maria José

; Carvalho Barreto, Maynara Fernanda

; Rolim Scholze, Alessandro

; De Melo Gomes, Jhonny Richard

; Trevisan Martins, Júlia

Ciencia y enfermería

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2022, Volume 28 elocation 10

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

ABSTRACT Objective: To reveal the experiences and coping strategies in the face of workplace violence suffered by nurses in Emergency Care Units. Material and Method: Qualitative study conducted between November and December 2018 through individual and audio-recorded interviews with 21 nurses from two Emergency Care Units in a city located in the state of Paraná, Brazil. For data analysis, the content analysis technique proposed by Bardin was used. Results: The following four categories were identified: 1) Motives for violence in the nursing work; 2) Violence escalation in the nursing work process; 3) The nurse's feelings concerning work-related violence; and 4) The coping strategies among nurses in the face of work-related violence. The experiences of violence were related to delayed care, being a woman and holding important public activities. The coping strategies used were communicating to local authorities, practicing exercising active listening and empathy, keeping calm and spirituality. Conclusions: Nurses have a critical and comprehensive view of the violence they suffer in the work environment of Emergency Care Units from patients and companions due to factors such as delayed care, inadequate human resources, high patient demand, and prejudice against female nursing workers.

RESUMEN Objetivo: Conocer las vivencias y estrategias de afrontamiento ante la violencia laboral que sufren los enfermeros en Servicios de Atención de Urgencia. Material y Método: Estudio cualitativo cuya recolección de datos se realizó entre noviembre y diciembre de 2018 a través de entrevistas individuales y grabadas en audio, a 21 enfermeras de dos Servicios de Atención de Urgencias de una ciudad del interior de Paraná, Brasil. Para el análisis de los datos se utilizó la técnica de análisis de contenido propuesta por Bardin. Resultados: Fueron identificadas cuatro categorías, a saber: 1) Los motivos de la violencia en el trabajo de enfermería; 2) Desdoblamientos de la violencia en el proceso de trabajo de Enfermería; 3) Los sentimientos del enfermero o la enfermera frente a la violencia laboral y 4) Los enfrentamientos utilizados por enfermeros y enfermeras frente a la violencia laboral. Las experiencias de violencia estuvieron relacionadas con el retraso en el cuidado, ser mujer y ejercer actividades públicas. Las estrategias de afrontamiento utilizadas son la comunicación a las autoridades locales, el ejercicio de la escucha activa y la empatía, el mantenimiento de la calma y la espiritualidad. Conclusiones: Las enfermeras tienen una mirada crítica e integral sobre la violencia que sufren en el ambiente de trabajo de las Unidades de Atención de Urgencia de pacientes y acompañantes, en donde están presentes factores como la demora en la atención, recursos humanos inadecuados, alta demanda de pacientes, así como los prejuicios contra las trabajadoras de enfermería.

RESUMO Objetivo: Revelar as vivências e as estratégias de enfrentamento diante da violência no trabalho sofrida por enfermeiros de Unidades de Pronto Atendimento. Material e Método: Estudo qualitativo desenvolvido entre novembro e dezembro de 2018 por meio de entrevistas individuais e gravadas em áudio, com 21 enfermeiros de duas Unidades de Pronto Atendimento de uma cidade localizada no interior do Paraná, Brasil. Para a análise de dados utilizou-se a técnica de análise de conteúdo proposta por Bardin. Resultados: Foram identificadas quatro categorias: 1) Motivos para a violência no trabalho de enfermagem; 2) desdobramento da violência no trabalho de enfermagem; 3) os sentimentos dos enfermeiros em relação à violência no trabalho; e 4) as estratégias de enfrentamento dos enfermeiros diante da violência no trabalho. As vivências de violência estão relacionadas à demora na assistência, ser mulher e exercer atividades públicas. Quanto às estratégias de enfrentamento utilizadas estiveram pautadas com o comunicar às autoridades locais, exercer a escuta ativa e empatia, manter a calma e a espiritualidade. Conclusões: Os enfermeiros têm um olhar crítico e abrangente sobre a violência que sofrem no ambiente laboral das Unidades de Pronto Atendimento advindos dos pacientes e acompanhantes devido a fatores como demora no atendimento, recursos humanos em quantidade não adequada, alta demanda de pacientes, bem como a questão de preconceitos com trabalhadores do sexo feminino na enfermagem.

https://doi.org/10.29393/ce28-10vtcj60010 44 downloads

Development of the prickly pear cactus Opuntia stricta (Haw.) Haw. (Cactaceae) in vitro in response to the replacement of potassium nitrate for a commercial kno 3 fertilizer
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Ferreira, Cinthia Carolinne de Souza

; Paz, Cristiane Domingos da

; Souza, Joselita Cardoso de

; Peixoto, Ana Rosa

; Rios, Lucas Silva

; Nascimento, Alessandro Rosa

; Ribeiro, Juliana Martins

; Melo, Natoniel Franklin de

; Teixeira, Silvio Lopes

; Araújo, Jairton Fraga

Ciência Rural

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2022, Volume 52 N. 1 elocation e20200122

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

RESUMO: Na micropropagação, o nitrato de potássio (KNO3), reagente puro para análise (P.A.), utilizado no preparo dos meios de cultura, possui custo elevado e a sua aquisição depende de trâmites burocráticos, por se tratar de substância controlada pelo Exército Brasileiro. O objetivo deste trabalho foi avaliar o efeito da substituição do KNO3 P.A. por fertilizante comercial (com fonte de KNO3), encontrado livremente no comércio, na micropropagação de palma (Opuntia stricta (Haw.) Haw. cv Orelha de Elefante. Os tratamentos foram de seis concentrações do fertilizante (0; 0,5; 1; 1,5; 2 e 2,5 g L-1) e um controle constituído de 1,9 g L-1 de reagente KNO3, conforme mostrado nos sais MS. Avaliou-se a sobrevivência, tamanho e número de brotações do explante, e o valor da biomassa fresca. Após a aclimatização das mudas avaliou-se a sobrevivência, número de brotações, comprimento da parte aérea, número de raízes, formação da raquete, massa média da biomassa fresca, absorção de macronutrientes e alterações morfológicas das mudas. Os explantes inoculados em meio com fertilizantes nas concentrações de 0,0; 2,0 e 2,5 g L-¹ não se desenvolveram. A resposta dos explantes nas concentrações de 0,5 e 1,5 g L-1 do fertilizante foram iguais aos desenvolvidos em meio contendo KNO3, e na concentração de 1,0 g L-1, em todas as variáveis, as médias foram superiores em relação as do controle. Dessa forma, constatou-se a viabilidade do uso do fertilizante no cultivo in vitro da palma, o que propiciou a eliminação dos entraves burocráticos e redução no custo de 99,12% na compra do produto.

ABSTRACT: In micropropagation, potassium nitrate (KNO3), an ACS reagent grade chemical, used in the preparation of growing mediums is expensive and its procurement depends on bureaucratic procedures, as it is controlled by the Brazilian Army. This research to assessed the effect of replacing the ACS KNO3 for a commercially available fertilizer (KNO3- based) on the micropropagation of the prickly pear cactus (Opuntia stricta (Haw.) Haw. cv. Elephant Ear. Treatments used six different fertilizer concentrations (0, 0.5, 1, 1.5, 2 and 2.5 g L-1) and a control consisting of 1.9 g L-1 KNO3, as shown in the MS salts. The survival, size and number of sprouts and the value of fresh biomass were evaluated. After seedling acclimation, we assessed the survival, number of sprouts, length, and number of roots, racket formation, average fresh biomass mass, macronutrient absorption and morphological changes of the seedlings. Explants inoculated with fertilizers at concentrations of 0.0; 2.0 and 2.5 g L-¹ did not grow. The response of explants at concentrations of 0.5 and 1.5 g L-1 of the fertilizer were the same as those developed in a KNO3 medium, and at a concentration of 1.0 g L-1, in all variables, the means were higher than those of the control medium. Therefore, it showed the feasibility of using fertilizers in the in vitro cultivation of the prickly pear cactus, which may remove bureaucratic barriers and reduce product costs by 99.12%.

https://doi.org/10.1590/0103-8478cr20200122 96 downloads

Impacto do tamanho das instituições de longa permanência na adesão às orientações de prevenção de infecções por COVID-19
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Wachholz, Patrick Alexander

; Melo, Ruth Caldeira de

; Jacinto, Alessandro Ferrari

; Villas Boas, Paulo José Fortes

Revista Latino-Americana de Enfermagem

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2022, Volume 30 elocation e3557

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

Resumo Objetivo: avaliar a adesão das instituições de longa permanência brasileiras às orientações de Prevenção e Controle de Infecções da Organização Mundial da Saúde, observando a associação entre seu porte e a adesão a essas recomendações. Método: estudo transversal realizado com gestores de estabelecimentos. Os autores desenvolveram um questionário de 20 itens, com base nessas orientações, e um escore global de adesão, com base na adesão a essas recomendações. A adesão foi classificada como (1) excelente para aquelas que atenderam ≥14 de 20 recomendações, (2) bom para 10 a 13 itens e (3) baixo para aquelas com menos de dez itens. O tamanho das instalações foi classificado como pequeno, médio e grande, de acordo com uma análise de cluster em duas etapas. Estatística descritiva e teste de qui-quadrado foram utilizados com nível de significância de 5%. Resultados: das 362 instituições incluídas, 308 (85,1%) aderiram a 14 ou mais recomendações. Em relação ao seu tamanho, a adesão à triagem de sintomas de COVID-19 dos visitantes (p=0,037) e ao isolamento de pacientes até que tenham dois exames laboratoriais negativos (p=0,032) foi menor em estabelecimentos maiores, em comparação com estabelecimentos de médio e pequeno porte. Conclusão: a adesão às medidas de mitigação da COVID-19 nas unidades brasileiras foi considerada excelente para a maioria das recomendações, independentemente do porte das unidades.

Abstract Objective: to evaluate the adherence of Brazilian long-term care facilities to the World Health Organization Infection Prevention and Control guidance, and assess the association of their size with the adherence to these recommendations. Method: cross-sectional study conducted with facilities’ managers. Authors developed a 20-item questionnaire based on this guidance, and a global score of adherence, based on the adoption of these recommendations. Adherence was classified as (1) excellent for those who attended ≥14 out of 20 recommendations; (2) good for 10 to 13 items; and (3) low for those with less than ten items. Facilities’ sizes were established as small, intermediate, and large according to a two-step cluster analysis. Descriptive statistics and chi-square tests were used at a 5% significance level. Results: among 362 included facilities, 308 (85.1%) adhered to 14 or more recommendations. Regarding its size, adherence to screening COVID-19 symptoms of visitors (p=0.037) and isolating patients until they have had two negative laboratory tests (p=0.032) were lower on larger ones compared to medium and small facilities. Conclusion: adherence to COVID-19 mitigation measures in Brazilian facilities was considered excellent for most of the recommendations, regardless of the size of the units.

Resumen Objetivo: evaluar la adhesión de instituciones brasileñas de larga estancia a las orientaciones de Prevención y Control de Infecciones de la Organización Mundial de la Salud y evaluar la asociación entre su tamaño y la adhesión a esas recomendaciones. Método: estudio transversal realizado con gerentes de establecimientos. Los autores desarrollaron un cuestionario de 20 ítems basado en estas directrices y un puntaje general de cumplimiento acorde a la observancia de estas recomendaciones. La adhesión se calificó (1) excelente para aquellas que cumplieron con ≥14 de 20 recomendaciones; (2) buena para 10 a 13 artículos; y (3) baja para aquellas con menos de diez elementos. El tamaño de las instalaciones se clasificó como pequeños, medianos y grandes de acuerdo con un análisis de clúster de dos pasos. Se utilizó estadística descriptiva y la prueba de chi-cuadrado con un nivel de significancia del 5%. Resultados: de las 362 instituciones incluidas, 308 (85,1%) se adhirieron a 14 o más recomendaciones. En cuanto a su tamaño, la adhesión al cribado de síntomas de COVID-19 de los visitantes (p=0,037) y al aislamiento de los pacientes hasta que tengan dos pruebas de laboratorio negativas (p=0,032) fue menor en los establecimientos más grandes en comparación con los establecimientos medianos y pequeños. Conclusión: la adhesión a las medidas de mitigación de la COVID-19 en las unidades brasileñas fue considerada excelente para la mayoría de las recomendaciones, independientemente del tamaño de las unidades.

https://doi.org/10.1590/1518-8345.5581.3557

Systemic Manifestations, Tooth Eruption and Enamel Defects in Children with Congenital Zika Virus Syndrome: 36-Month Follow-up Case Series
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Cavalcanti, Alidianne Fábia Cabral

; Arruda, Taynná Dantas de

; Aguiar, Yeska Paola Costa

; Melo, Adriana Suely de Oliveira

; Leal, Jeime Iara Bezerra de Freitas

; Sakly, Emna Hidoussi

; Goncharuk-Khomyn, Myroslav

; Cavalcanti, Sérgio D’Avila L. B.

; Cavalcanti, Alessandro Leite

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2022, Volume 22 elocation e211316

Abstract: En | Text: En | PDF: En

Abstract Objective: To describe systemic manifestations, the characteristics related to tooth eruption, and the occurrence of enamel defects in children with Congenital Zika Virus Syndrome (CZS). Material and Methods: Prospective case series based on nine children with confirmed CZS diagnosis assisted at a reference center in a municipality in the Northeast Region of Brazil. Through a structured interview directed to mothers, information related to prenatal, delivery, and postpartum periods was collected. Tooth eruption was monitored through clinical examinations for 36 months. The modified developmental defect of enamel index (DDE) was used to identify opacities and hypoplasia. Data were presented using descriptive statistics. Results: A high proportion (77.8%) had microcephaly, and 55.5% had low birth weight. Musculoskeletal disorders, swallowing difficulty, and self-injury practices were present in all children. Among the systemic findings, visual impairment (77.8%) and seizures (77.8%) were widely reported. Concerning disorders related to the stomatognathic system, bruxism (66.7%) and difficulty in sucking (33.3%) were present. For most children (77.8%), the deciduous right lower central incisor was the first tooth to erupt (minimum 8 months and maximum 17 months). Enamel defects were diagnosed in only two children (22.2%). Conclusion: A wide range of systemic manifestations was observed in children with CZS, including visual impairment and musculoskeletal disorders. Delayed eruption of the first deciduous tooth was also observed. Enamel defects were present in a small proportion of children.

https://doi.org/10.1590/pboci.2022.037

Checklist of the birds of Mato Grosso do Sul state, Brazil: diversity and conservation
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Nunes, Alessandro Pacheco

; Straube, Fernando Costa

; Posso, Sérgio Roberto

; Laps, Rudi Ricardo

; Vasconcelos, Marcelo Ferreira de

; Hoffmann, Diego

; Morante-Filho, José Carlos

; Donatelli, Reginaldo José

; Ragusa-Netto, José

; Faxina, Claudenice

; Godoi, Maurício Neves

; Urben-Filho, Alberto

; Castro, Sáuria Lúcia Rocha de

; Lopes, Edson Varga

; Anjos, Luiz dos

; Tomas, Walfrido Moraes

; Mendonça, Luciana Baza

; Silva, Paulo Antonio

; Pivatto, Maria Antonietta de Castro

; Costacurta, Marco de Barros

; Melo, Alyson Vieira de

; Hass, Adriani

; Braz, Vívian da Silva

; Módena, Érica de Souza

; Freitas, Gabriel Oliveira de

; Souza, Rafael Augusto Ducel de

; Benites, Maristela

; Mamede, Simone

; Menq, Willian

Papéis Avulsos de Zoologia

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2022, Volume 62 elocation e202262029

Abstract: En | Text: En | PDF: En

Abstract Several phytogeographic regions (Cerrado, Pantanal, Atlantic Forest, Gran Chaco, and Chiquitano Dry Forests) converge in the state of Mato Grosso do Sul, Brazil, and influence regional biodiversity. Despite a list of birds in the state of Mato Grosso do Sul being published by Nunes et al. (2017), it is necessary to update and critically review avifauna records. In this study, we gathered the results of several records obtained from species lists and online data platforms of the 336 sites in this state over the last decades and grouped them into Main (Primary and Secondary) and Tertiary Lists. The avifauna of Mato Grosso do Sul is composed of 678 species, of which 643 (95%) have records proving their occurrence (Primary List), whereas 34 still lack documentation (Secondary List). The number of related species for Mato Grosso do Sul represents 34% of the Brazilian avifauna. Some species stand out for their unique occurrence in Mato Grosso do Sul, such as Melanerpes cactorum, Celeus lugubris, Phaethornis subochraceus, and Cantorchilus guarayanus, reflecting the influence of different phytogeographic regions of the Chaco and Chiquitano Dry Forests. Migrants represent 20% of the bird community occurring in the state, of which 93 species correspond to migrants from various regions of South America (south and west) and 40 to boreal migrants. Thirty-three species perform nomadic movements across the Pantanal Plain and other regions of the state. Thirty-one species are included in some conservation-threatened categories of global and/or national endangered species lists. Other 30 species are included in the near-threatened category at the global level and 23 at the national level. In addition, species typical of dry forests (in Serra da Bodoquena and Maciço do Urucum) and those from the Atlantic Forest in the south of the state deserve attention due to their restricted distribution and the high anthropogenic pressure on their habitat.

https://doi.org/10.11606/1807-0205/2022.62.029

Neurofibromatosis type 1: evaluation by chest computed tomography
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Alves Júnior, Sérgio Ferreira

; Irion, Klaus Loureiro

; Melo, Alessandro Severo Alves de

; Meirelles, Gustavo de Souza Portes

; Rodrigues, Rosana Souza

; Souza Jr., Arthur Soares

; Hochhegger, Bruno

; Zanetti, Gláucia

; Marchiori, Edson

Radiologia Brasileira

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dec 2021, Volume 54 N. 6 Pages 375 - 380

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

Abstract Objective: The aim of this study was to evaluate chest computed tomography (CT) findings in patients diagnosed with neurofibromatosis type 1 (NF1). Material and Methods: This was a retrospective study in which we reviewed the chest CT scans of 14 patients diagnosed with NF1 and neurofibromatosis-associated diffuse lung disease (NF-DLD). The sample comprised eight women and six men. The median age was 55 years (range, 11-75 years). The diagnosis of NF1 was made on the basis of the diagnostic criteria established by the U.S. National Institutes of Health. The images were analyzed by two chest radiologists, who reached decisions by consensus. Results: The predominant CT finding of NF-DLD was multiple cysts, which were observed in 13 patients (92.9%), followed by emphysema, in eight (57.1%) and subpleural bullae, in six (42.9%). Other findings included subcutaneous neurofibromas, in 12 patients (85.7%), ground-glass opacities, in one (7.1%), and tracheobronchial neurofibromas, in one (7.1%). The pulmonary abnormalities were bilateral in 12 cases (85.7%). The abnormalities were predominantly in the upper lung fields in eight cases (57.1%), and their distribution was random in 11 (78.6%). Conclusion: Pulmonary cysts, emphysema, and subpleural bullae appear to be the chest CT findings that are most characteristic of NF-DLD.

Resumo Objetivo: O objetivo deste estudo foi avaliar os achados pulmonares na tomografia computadorizada do tórax de pacientes diagnosticados com neurofibromatose tipo 1 (NF1). Materiais e Métodos Foram revisados, retrospectivamente, os achados tomográficos de 14 pacientes com doença pulmonar difusa associada à NF1 (NF-DPD). A amostra incluiu oito mulheres e seis homens, com idade entre 11 e 75 anos (mediana de idade de 55 anos). O diagnóstico foi estabelecido com base em critérios diagnósticos predeterminados pelo National Institutes of Health dos Estados Unidos. As imagens foram analisadas de forma independente por dois radiologistas, que chegaram a um consenso. Resultados: Os achados tomográficos predominantes foram múltiplos cistos em 13 pacientes (92,9%), enfisema em oito (57,1%) e bolhas subpleurais em seis (42,9%). Achados associados incluíram neurofibromas cutâneos e subcutâneos em 12 pacientes (85,7%), opacidades em vidro fosco em um (7,1%) e neurofibromas traqueobrônquicos em um (7,1%). As anormalidades pulmonares foram bilaterais em 12 casos (85,7%). Houve predomínio nos terços superiores em oito (57,1%) pacientes e se distribuíram randomicamente pelos pulmões em 11 (78,6%). Conclusão: Os achados tomográficos pulmonares mais frequentes na NF-DPD foram os cistos pulmonares, o enfisema e as bolhas subpleurais.

https://doi.org/10.1590/0100-3984.2020.0150

Production cycle and characterization of Italian zucchini genotypes by the logistic model
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Lúcio, Alessandro Dal’Col

; Diel, Maria I

; Tartaglia, Francieli L

; Melo, Patrícia J

; Tischler, André L

; Lambrecht, Darlei M

; Zemolin, João A

; Marques, Lucas E

Horticultura Brasileira

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sep 2021, Volume 39 N. 3 Pages 264 - 271

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

RESUMO O objetivo deste estudo foi identificar a resposta do ciclo produtivo de genótipos de abobrinha italiana cultivadas em condições de campo em duas épocas de cultivo por meio do modelo não linear logístico e seus pontos críticos. Para isso dois experimentos foram conduzidos em delineamento blocos ao acaso, com três genótipos (Caserta, PX13067051 e Tronco) e duas épocas de cultivo (primavera-verão e verão-outono) com oito repetições e a unidade experimental composta por 7 plantas. Ajustou-se o modelo não linear logístico para a variável massa de frutos, em função da soma térmica acumulada, e estimou-se os pontos críticos pelas derivadas parciais da função ajustada. Os pressupostos do modelo não linear não foram atendidos para nenhum genótipo em ambas as épocas avaliadas, e para contornar este problema foi realizado o ajuste por reamostragens bootstrap. Os resultados de não linearidade intrínseca e paramétrica confirmam a qualidade do ajuste do modelo. Pelos parâmetros e pontos críticos do modelo foi possível determinar que os genótipos de abobrinha italiana avaliados foram mais produtivos na primavera-verão. Os genótipos PX13067051 e Caserta apresentaram produtividade superior ao genótipo Tronco, além de serem mais precoces e apresentar maiores taxas de produção. O modelo de crescimento logístico e seus pontos críticos foram capazes de caracterizar o ciclo de produção dos genótipos de abobrinha italiana em diferentes épocas de cultivo, e permitiu que inferências fossem realizadas com vistas a diferenciar os genótipos e as épocas de cultivo avaliadas.

ABSTRACT This study aimed to identify the productive cycle response of Italian zucchini genotypes grown under field conditions in two growing seasons using the nonlinear logistic model and its critical points. Two randomized block experiments were conducted, with three genotypes (Caserta, PX13067051, and Tronco) and two growing seasons (spring-summer and summer-fall), with eight replicates and each experimental unit consisting of 7 plants. The logistic nonlinear model was adjusted for the fruit mass variable, as a function of the accumulated thermal sum, and the critical points were estimated by the partial derivatives of the adjusted function. Adjustment by bootstrap resampling was performed to address the violation of assumptions. The results of intrinsic and parametric nonlinearity confirm the quality of the model fit. This experiment demonstrated that the zucchini genotypes evaluated were more productive in the spring-summer growing season, using the parameters and critical points obtained from the logistic nonlinear model. Genotypes PX13067051 and Caserta showed superior productivity to the Tronco genotype, and also fruited earlier and at a higher rate of production. The logistic growth model and its critical points characterized the production cycle of the zucchini genotypes in different growing seasons and allowed inferences to be made to differentiate the genotypes and the growing seasons.

https://doi.org/10.1590/s0102-0536-20210304 90 downloads

10.

Diagnostic imaging in bronchial atresia
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Melo, Alessandro Severo Alves de

Radiologia Brasileira

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apr 2021, Volume 54 N. 2 Pages 5 - 5

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

https://doi.org/10.1590/0100-3984.2021.54.2e1 244 downloads

11.

Behavior of strawberry production with growth models: a multivariate approach
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Diel, Maria Inês

; Lúcio, Alessandro Dal'Col

; Sari, Bruno Giacomini

; Olivoto, Tiago

; Pinheiro, Marcos Vinícius Marques

; Krysczum, Dionatan Ketzer

; Melo, Patrícia Jesus de

; Schmidt, Denise

Acta Scientiarum. Agronomy

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2021, Volume 43 elocation e47812

Abstract: En | Text: En | PDF: En

ABSTRACT. Strawberry is an economically and socially important crop in several regions worldwide. Thus, studies that provide information on topics in strawberry growth are important and must be constantly updated. The aims of this study were to fit a logistic growth model to describe strawberry fruit production and to estimate the partial derivatives of the fitted model in order to estimate and interpret the critical points, in addition to using multivariate analyses. To do this, data on 16 treatments [combinations of two cultivars (Albion and Camarosa), two origins (national and imported), and four mixed organic substrates (70% crushed sugar cane residue + 30% organic compost, 70% crushed sugar cane residue + 30% commercial substrate, 70% burnt rice husk + 30% organic compost, and 70% burnt rice husk + 30% commercial substrate)] conducted in a randomized complete block design (RCBD) with four replicates were used. A logistic model was fitted to the accumulated fruit production stratified by treatment and replication. Partial derivatives related to the accumulated thermal sum were estimated in order to quantify the critical points of the model. Subsequently, a principal component analysis was performed. The results show that the use of growth models substantially increases the inferences that can be made about crop growth, and the multivariate analysis summarizes this information, simplifying its interpretation. Approaches such as those carried out in this study are still rarely used, but, compared to simpler models, they increase the amount of inferences that can be made and provide greater elucidation of the results.

https://doi.org/10.4025/actasciagron.v43i1.47812 719 downloads

12.

Sugarcane harvest time for processing and technological quality of brown sugar
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Tischler, André Luís

; Jeronimo, Elisangela Marques

; Lúcio, Alessandro Dal’Col

; Sari, Bruno Giacomini

; Melo, Patrícia Jesus de

; Boesso, Francine Fricher

; Diel, Maria Inês

; Tartaglia, Francieli de Lima

Pesquisa Agropecuária Brasileira

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2021, Volume 56 elocation e02435

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

Resumo: O objetivo deste trabalho foi avaliar a época ideal de colheita de dez genótipos de cana-de-açúcar (Saccharum officinarum) para o processamento e a qualidade de açúcar mascavo. O experimento foi realizado em delineamento de blocos ao acaso, em arranjo fatorial 3x10, em parcelas subdivididas, com três épocas de colheita e dez genótipos de cana-de-açúcar, no estado de São Paulo, Brasil. Os parâmetros qualitativos de açúcar mascavo foram avaliados pelo teste de Scott-Knott, a 5% de probabilidade. A época de colheita em setembro, conhecida como meio de safra, é a mais adequada para a produção de açúcar mascavo, em razão dos maiores valores de ºBrix da cana, ºBrix do caldo, valor pol do mascavo e açúcares totais redutores nesse período. A colheita dos genótipos de cana-de-açúcar em junho-julho é a mais favorável para a produção de açúcar mascavo quanto às características de coloração a*, b*, L* e croma; no entanto, é também o período de produção de açúcar mascavo com menores teores de açúcar. A terceira época de colheita (novembro) é a menos recomenda para a produção de açúcar mascavo, em razão dos maiores valores de fibra e pureza. O genótipo mais adequado para a produção e a qualidade de açúcar mascavo é o 'IACSP04-704'.

Abstract: The objective of this work was to evaluate the optimal harvest time of ten genotypes of sugarcane (Saccharum officinarum) for the processing and quality of brown sugar. The experiment was carried out in a randomized complete block design in a 3x10 factorial arrangement in split plots, with three harvest times and ten sugarcane genotypes, in the state of São Paulo, Brazil. The qualitative parameters of brown sugar were evaluated by Scott-Knott’s test, at 5% probability. The harvest season in September, known as the middle of the harvest, is the most suitable for the production of brown sugar due to the higher of ºBrix values of cane, ºBrix of the broth, pol of brown sugar, and total reducing sugars in this period. The harvesting of the sugarcane genotypes in June-July is the most favorable for the production of brown sugar for the color characteristics a*, b*, L*, and chroma; however, it is also the period of production of brown sugar with a lower sugar content. The third harvest season (November) is the least recommended for brown sugar production due to the higher fiber and purity values. The most suitable genotype for brown sugar production and quality is 'IACSP04-704'.

https://doi.org/10.1590/s1678-3921.pab2021.v56.02435 103 downloads

13.

Quality of Life of Mothers of Brazilian Children with Congenital Zika Virus Syndrome and Associated Factors
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Cavalcanti, Alidianne Fábia Cabral

; Aguiar, Yêska Paola Costa

; Arruda, Taynná Dantas de

; Melo, Adriana Suely de Oliveira

; Cavalcanti, Alessandro Leite

; d’Ávila, Sérgio

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2021, Volume 21 elocation e0071

Abstract: En | Text: En | PDF: En

ABSTRACT Objective: To evaluate the quality of life of mothers of Brazilian children with congenital Zika virus syndrome (CZS) and associated factors. Material and Methods: This cross-sectional study assessed the quality of life (QoL) of 65 mothers of children diagnosed with CZS using the WHOQOL-bref questionnaire. Information related to mothers and children's characteristics and aspects of QoL (physical, psychological, social and environment domains) was collected. Data were presented using descriptive and inferential statistics. Associations between independent variables and quality of life outcome were carried out through bivariate analyses, adopting a 5% significance level. Results: The “physical” domain showed the highest score (65.98 ± 17.62), while the “environment” domain showed the lowest score (48.55 ± 14.75). The quality of life for the physical domain was associated with maternal schooling and child's sex, while the psychological domain was associated with family income and child's sucking difficulty. Conclusion: Socioeconomic characteristics and comorbidities were associated with mothers' QoL. Knowledge of QoL determinants and their impact on different dimensions of life can serve as a guide for interventions aimed at improving the QoL of this population.

https://doi.org/10.1590/pboci.2021.120 29 downloads

14.

[SciELO Preprints] - FACING THE PANDEMIC OF COVID-19 BY THE MANAGERS OF CARE HOMES FOR OLDER PEOPLE IN LATIN AMERICA
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Wachholz, Patrick Alexander Jacinto, Alessandro Ferrari Melo, Ruth Caldeira de Dinamarca-Montecinos, José Luis Villas Boas, Paulo José Fortes

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Publication date: 2020-07-24

Abstract: En Pt

Introduction: Few information is available on coping and mitigating COVID-19 in long-term care services for older people (ILPIs) in Latin America (LA). Objectives: To describe how ILPI managers in LA planned and adapted their coping routines to the COVID-19 pandemic, and whether they were able to comply with the recommendations of the World Health Organization (WHO). Methodology: Cross-sectional study, based on the application of an online survey aimed at LTCF managers in LA. A 46-question questionnaire (adopting WHO principles) was sent to participants. Descriptive statistics was used to summarize the data. Results: 23 managers answered the survey (excluding Brazilian respondents), totaling 874 older person (5 -270); a questionnaire was excluded due to lack of answers. Fourteen ILPIs (63.60%) were private for profit. The rate of adherence to WHO recommendations was over 70% for most issues. A little more than half of the institutions developed a strategic coping plan, or identified strategies to deal with deaths from suspected cases. Difficulty in acquiring personal protective equipment was reported by 59.10% of the investigated LTCIs. The testing capacity for SARS-Cov-2 has been reduced (36.36% had no test). Conclusions: The rate of adherence to the recommendations proposed by WHO for coping with COVID-19 was over 70% for most investigated LTCIs. Strategic coping plans were developed in just over half of the institutions. The availability of PPE and the testing capacity for SARS-Cov-2 proved to be quite unsatisfactory.

Introdução: Pouco se sabe sobre o enfrentamento e mitigação à COVID-19 em serviços de longa permanência para idosos (ILPIs) na América Latina (AL). Objetivos: Descrever como os gestores de ILPIs na AL planejaram e adequaram suas rotinas de enfrentamento à pandemia de COVID-19, e se foram capazes de cumprir com as recomendações da Organização Mundial da Saúde(OMS). Metodologia: Estudo transversal, baseado na aplicação de uma pesquisa online dirigida aos gestores de ILPIs na AL. Um questionário de 46 questões (adotando os princípios da OMS) foi enviado aos participantes. Estatística descritiva foi usada para resumir os dados. Resultados: 23 gestores responderam a pesquisa (excluídos os respondentes brasileiros), totalizando 874 idosos (5 –270); um questionário foi excluído por falta de respostas. Quatorze ILPIs (63,60%) eram privadas com fins lucrativos. A taxa de adesão às recomendações da OMS foi superior a 70% para a maioria das questões. Pouco mais da metade das instituições elaborou um plano estratégico de enfrentamento, ou identificou estratégias para lidar com óbitos de casos suspeitos. Dificuldade para a aquisição de equipamentos de proteção individual foram relatados por 59,10% das ILPIs investigadas. A capacidade de testagem para o SARS-Cov-2 foi reduzida (36,36% não dispunham de nenhum teste). Conclusões: A taxa de adesão às recomendações propostas pela OMS para o enfrentamento da COVID-19 foi superior a 70% para a maioria das ILPIs investigadas. Planos estratégicos de enfrentamento foram elaborados em pouco mais da metade das instituições. A disponibilidade de EPIs e a capacidade de testagem para o SARS-Cov-2 mostrou-se bastante insatisfatória.

https://doi.org/10.1590/SciELOPreprints.986

15.

Production of biquinho pepper in different growing seasons characterized by the logistic model and its critical points
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Diel, Maria Inês

; Lúcio, Alessandro Dal’Col

; Valera, Oscar Valeriano Sanchéz

; Sari, Bruno Giacomini

; Olivoto, Tiago

; Pinheiro, Marcos Vinícius Marques

; Melo, Patrícia Jesus de

; Tartaglia, Francieli de Lima

; Schmidt, Denise

Ciência Rural

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2020, Volume 50 N. 4 elocation e20190477

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

RESUMO: O objetivo deste estudo foi caracterizar a produção de pimenta biquinho através da interpretação dos parâmetros do modelo Logístico e seus pontos críticos obtidos pelas derivadas parciais da função, bem como indicar qual a melhor cultivar e a melhor época de cultivo para locais de clima subtropical. Conduziu-se um experimento em esquema fatorial 2x3 sendo duas cultivares de pimenta biquinho (BRS Moema e Airetama biquinho), em três épocas de cultivo (E1: outubro de 2015, E2: 01 de novembro 2015 e E3: janeiro de 2016). Ajustou-se o modelo logístico para massa de frutos em função da soma térmica acumulada, e calculou-se os pontos críticos através das derivadas parciais do modelo com a finalidade de caracterizar o desempenho produtivo da cultura através da interpretação biológica destes parâmetros. Temperaturas próximas a 0 ºC durante o experimento foram letais às plantas, e por isso, para a época 3, ajustou-se um modelo de regressão linear. A interpretação dos parâmetros do modelo Logístico e seus pontos críticos permitiram que a produção das cultivares nas épocas 1 e 2 fossem caracterizadas, sendo que a cultivar mais produtiva é Airetama biquinho em todas as épocas de transplante. Essa cultivar também apresenta maior concentração de produção no período. Quanto a precocidade produtiva as duas cultivares não diferiram significativamente. Sobre a época 3, não foi possível interpretar da mesma forma, pois o ajuste do modelo linear não permite as mesmas interpretações realizadas para o modelo não linear, reafirmando a sua aplicabilidade em cultura olerícolas de múltiplas colheitas.

ABSTRACT: The objective of this study was to characterize the production of biquinho pepper through the interpretation of parameter estimates from the logistic model and its critical points obtained by the partial derivatives of the function, and to indicate the best cultivar and growing season for subtropical climate sites. For this, a 2x3 factorial experiment was conducted with two cultivars of biquinho pepper (BRS Moema and Airetama biquinho) in three growing seasons (E1: October 2015, E2: November 2015, E3: January 2016). The logistic non-linear model for fruit mass was specified as a function of the accumulated thermal sum, and the critical points were calculated through the partial derivatives of the model, in order to characterize the productive performance of the crop by the biological interpretation of the estimates of the three set parameters. In E3, temperatures close to 0 ºC during the experiment were lethal to the plants, and a linear regression model was used in this case. The production of the cultivars in E1 and E2 were well characterized by the estimated logistic models, and the most productive cultivar was Airetama biquinho in all evaluated seasons. This cultivar also presented higher concentration of production. The two cultivars did not differ significantly with regards to productive precocity. For E3, it was not possible to interpret the parameters in the same way as for E1 and E2, since the use of the linear model did not allow the same interpretations performed for the nonlinear model, reaffirming its applicability horticultural crops of multiple harvests.

https://doi.org/10.1590/0103-8478cr20190477 1047 downloads

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