272 results on '"Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro"'
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2. Grupo focal como estratégia de investigação Qualitativa em um programa de formação continuada de professores em Ciências Naturais
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Pereira, Grazielle Rodrigues, Universidade de Aveiro, Paula, Lilian Mascarenhas, Espaço Ciência InterAtiva/Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Coutinho-Silva, Robson, and Instituto de Biofísica Carlos Chagas Filho/Universidade Federal do Rio de Janeiro
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Grupo Focal ,Anos Iniciais do Ensino Fundamental ,Ensino de Ciências - Published
- 2013
3. ANÁLISIS DE LIBROS DE TEXTO EN BRASIL Y EN ESPAÑA: UNA INTRODUCCIÓN AL TEMA EN EL ÁREA DE EDUCACIÓN FÍSICA
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CNPq, Botelho, Rafael Guimarães; Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Neira, Marcos Garcia; Faculdade de Educação da Universidade de São Paulo, CNPq, Botelho, Rafael Guimarães; Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, and Neira, Marcos Garcia; Faculdade de Educação da Universidade de São Paulo
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El objetivo de este artículo es revisar los trabajos que se centran en el análisis de libros de texto en Educación Física. Los 17 trabajos recuperados, entre 2000 y 2012, revelan que en las imágenes de los libros prevalecen mujeres con cuerpos delgados y hombres musculosos. Sin tener en cuenta la diversidad étnica, etaria y multiforme, las imágenes preconizan personas blancas y atléticas. Por ende, se puede afirmar que aún prevalecen estereotipos, prejuicios y discriminaciones con relación al género, edad, etnia, raza y patrones corporales en las imágenes y textos de los libros analizados por los autores brasileños y españoles., This paper has the aim to revise the documents that concentrate on the analysis of textbooks in Physical Education. The 17 documents retrieved, between 2000 and 2012, revealed that in the textbooks’ images prevail the women with slim bodies and muscular men. Without taking into account the ethnic, age and multiform diversity, the images exalt white, athletic and slim people. Therefore, it is possible to affirm that stereotypes, prejudices and discrimination in relation to genre, age, ethnic group, race and corporal patterns still prevail in the images and texts of the books analysed by the Brazilian and Spanish authors., Este artigo tem por objetivo revisar os trabalhos que se centram na análise de livros didáticos de Educação Física. Os 17 trabalhos recuperados, entre 2000 e 2012, revelam que nas imagens dos livros prevalecem mulheres com corpos magros e homens musculosos. Sem levar em conta a diversidade étnica, etária e multiforme, as imagens preconizam pessoas de raça branca, atléticas e magras. Por conseguinte, pode-se afirmar que ainda prevalecem estereótipos, preconceitos e discriminações em relação ao gênero, idade, etnia, raça e padrões corporais nas imagens e textos dos livros analisados pelos autores brasileiros e espanhóis.
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- 2014
4. Remaining phosphorus in soils developed from different parent materials in three topossequences, Pinheiral-RJ
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Fontana, Ademir; Embrapa Solos, Pereira, Marcos Gervasio; Universidade Federal Rural do Rio de Janeiro, Santos, Adailde Carmo dos; Instituto Federal de Educação, Ciência e Tecnologia da Bahia, Bernini, Thiago Andrade; Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Anjos, Lúcia Helena Cunha dos; Universidade Federal Rural do Rio de Janeiro, Fernández, Carlos Fernando Dorronsoro; Facultad de Ciencias, Universidad de Granada, Peinado, Francisco José Martins; Facultad de Ciencias, Universidad de Granada, Fontana, Ademir; Embrapa Solos, Pereira, Marcos Gervasio; Universidade Federal Rural do Rio de Janeiro, Santos, Adailde Carmo dos; Instituto Federal de Educação, Ciência e Tecnologia da Bahia, Bernini, Thiago Andrade; Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Anjos, Lúcia Helena Cunha dos; Universidade Federal Rural do Rio de Janeiro, Fernández, Carlos Fernando Dorronsoro; Facultad de Ciencias, Universidad de Granada, and Peinado, Francisco José Martins; Facultad de Ciencias, Universidad de Granada
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This work aimed to evaluate the remaining phosphorus tenors and correlate with the chemical, physical and mineralogical attributes in soils horizons developed from different parent materials in three topossequences in the municipality of Pinheiral, RJ. Were described and collected samples of surface horizons (A) and subsurface (B+C) from 14 soils profiles under pasture in three toposequences (T1, T2 and T3), being T1 under basalt, T2 under muscovite-biotite-gneiss and T3 under gabbro. Chemical and physical routine analyses as well as Al and Fe by sulfuric acid attack and X-ray fluorescence, Fed (dithionite-citrate-bicarbonate) and Feo (ammonium oxalate), clay specific surface (SS), clay and oxide mineralogy and remaining phosphorus (Prem), were taken. Variations in the Prem tenors were observed, which related to the nature of parent material, landscape position and soils development degree, which can be analyzed by the chemical, physical and mineralogical variations. The Prem tenors followed the order T2 > T1 = T3 in A horizons and T1 > T3 and T2 ~ T1 e T3 in B+C horizons. Negative correlations between Prem tenors with Fe2O3 (X rays) > Fed > SS > Feo in the A horizon and with Fe2O3 (sulfuric acid) > Fe2O3 (X rays) > clay > Fed > Feo in the B+C horizons, were observed. The principal components and hierarchical clustering analysis contributed to the joint data evaluation, showing the related attributes and the similarity between soils., Este trabalho teve o objetivo de avaliar os teores do fósforo remanescente e correlacioná-los com os atributos químicos, físicos e mineralógicos em horizontes de solos formados a partir de diferentes materiais de origem em três topossequências no município de Pinheiral, RJ. Foram descritos e coletadas amostras de horizontes superficiais (A) e subsuperficiais (B+C) de 14 perfis de solos sob pastagem em três topossequências (T1, T2 e T3), sendo T1 sob basalto, T2 sob muscovita-biotita-gnaisse e T3 sob gabro. Foram realizadas as análises químicas e físicas de rotina, bem como Al e Fe pelo ataque sulfúrico e fluorescência de raios X, Fed (ditionito-citrato-bicarbonato de sódio) e Feo (oxalato ácido de amônio), superfície específica da argila (SE), mineralogia da argila e óxido, e fósforo remanescente (Prem). Variações dos teores de Prem foram observadas, as quais relacionadas à natureza do material de origem, posição na paisagem e grau de desenvolvimento dos solos, o que pode ser analisado pelas variações dos atributos químicos, físicos e mineralógicos. Os teores de Prem seguiram a ordem T2 > T1 = T3 no horizonte A e da T1 > T3 e T2 ~ T1 e T3 nos horizontes B+C. Foram observadas correlações negativas entre os teores de Prem com Fe2O3 (raios X) > Fed > SE > Feo nos horizontes A e com Fe2O3 (ataque sulfúrico) > Fe2O3 (raios X) > argila > Fed > Feo nos horizontes B+C. As análises de componentes principais e agrupamento hierárquico contribuíram para avaliação conjunta dos dados, evidenciando os atributos relacionados e as similaridades entre os solos.
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- 2013
5. A COMPLEXIDADE DO ATO DE LEITURA EM LÍNGUA INGLESA PARA ALUNOS INICIANTES
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Mulico, Lesliê Vieira; Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro; Universidade do Estado do Rio de Janeiro and Mulico, Lesliê Vieira; Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro; Universidade do Estado do Rio de Janeiro
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Políticas de letramento tem colocado o ato de leitura em posição de destaque para o ensino de línguas. Todavia, apesar de professores e alunos reconhecerem a importância da leitura para a cidadania, percebo que o hábito de ler não é prontamente aderido, especialmente quando se trata de leitura literária. Da mesma forma, no âmbito do ensino de leitura instrumental em língua inglesa para iniciantes, tal fato se repete mesmo estando o aprendiz consciente do papel-chave que a língua exerce no mercado de trabalho. Observando que a leitura literária em língua mãe e a de textos técnicos em língua inglesa suscitam repulsas semelhantes, hipotetizo que a leitura de textos ficcionais em língua mãe e não-ficcionais em língua inglesa são investimentos comparáveis, pois requerem do leitor a capacidade de metaforização. A fim de demonstrar a complexidade do processo, estabeleci um diálogo entre a teoria dos atos de leitura de textos ficcionais de Wolfgang Iser (1996) e o modelo da construção de sentido de Richard Kern (1996) para analisar as relações de contingência e algumas representações mentais que um determinado texto técnico em língua inglesa requer do leitor iniciante. Portanto, constatei que textos ficcionais e não-ficcionais requerem processos mentais e representações metafóricas semelhantes., Literacy politics have put the act of reading in the spotlight in the scope of language teaching. Nonetheless, although teachers and learners recognize the importance of reading for citizenship, I notice that the reading habit is not readily adopted, especially when it comes to literary reading. Likewise, in the field of reading for specific purpose in English for beginners, said fact also occurs even if the learner is conscious of the key role the language plays in society. Upon observing that mother tongue literary reading and instrumental reading in English provoke similar rejections from the learner-reader, I hereby hypothesize that the act of reading fictional texts in the mother tongue and non-fictional ones in English are comparable acts, for they require the capacity to metaphorically abstract language representations. In order to demonstrate the complexity of this process, I have established a dialogue between Wolfgang Iser’s reading act theory (1996) and Richard Kern’s available designs and contextual layers in literacy (1996) so as to analyze the relationships of contingency and some mental representations that a given text in English requires form the reader. Hence, I have ascertained that both fictional and non-fictional texts require similar mental processing and metaphorical representations.
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- 2012
6. Conventional and alternative concentration processes in milk manufacturing: a comparative study on dairy properties
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Amanda Alves PRESTES, Cristiane Vieira HELM, Erick Almeida ESMERINO, Ramon SILVA, Elane Schwinden PRUDENCIO, AMANDA ALVES PRESTES, Universidade Federal de Santa Catarina, CRISTIANE VIEIRA HELM, CNPF, ERICK ALMEIDA ESMERINO, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, RAMON SILVA, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, and ELANE SCHWINDEN PRUDENCIO, Universidade Federal de Santa Catarina.
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Laticínios ,freeze concentration ,non-thermal processing ,membrane separation ,dairy processing ,freeze-drying ,Thermolabile compoun ,thermolabile compounds ,Liofilização ,Congelamento ,Food Science ,Biotechnology - Abstract
The concentration of dairy products is widely applied in dairy manufacturing due to obtaining products with the high dry matter, added value, reduced volume, and an increase in shelf-life. Traditional thermal concentration processes are the most applied in dairy industries, however, high temperatures can damage the bioactive compounds in milk, in addition to modifying the physicochemical, sensory, and nutritional characteristics of concentrated products. This review summarizes the importance of replacing traditional concentration methods with unconventional non-thermal processes, which can bring an option to dairy industries due to the concentration enabling the preservation of proteins, enzymes, vitamins, color, and flavor of the product. Alternative methods, such as freeze concentration, membrane separation processes, and freeze-drying, compose recent works about new methodologies to concentrate dairy products without changing specific properties and increase the quality, which is one of the main purposes for the dairy industries. Through a comparative study with recent researches, this overview highlights some alternative concentration processes that can improve the yield and increase the quality of concentrated dairy products. With new environmentally sustainable methods and the possibility of reducing the costs of the concentration process, these emerging concentration methods become attractive for dairy industries from a technological and economic perspective. PRACTICAL APPLICATION: Improving the quality of concentrated dairy products by non-thermal emerging technologies. Made available in DSpace on 2022-07-26T18:22:07Z (GMT). No. of bitstreams: 1 FST-2022-ConventionalAlternativeConcentrationProcessesMilkManufacturing.pdf: 1550466 bytes, checksum: 3e7936c63a4beba51b31adbcfca286a3 (MD5) Previous issue date: 2022
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- 2022
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7. Desenho de processo para manipulação higiênica de 500 ovos/dia em um serviço de alimentação
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SANTOS, M. R. dos, SILVA, C. B. da, SILVA, G. M. da, SCHIAVONE, T., HORA, I. M. de C. da, WALTER, E. H. M., MÁRCIA RONQUETI DOS SANTOS, Universidade Veiga de Almeida, CAMILA BARBOSA DA SILVA, Universidade Veiga de Almeida, GABRIELA MARCELINO DA SILVA, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, TATIANA SCHIAVONE, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, IRACEMA MARIA DE CARVALHO DA HORA, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, and EDUARDO HENRIQUE MIRANDA WALTER, CTAA.
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Serviços de alimentação ,Segurança de alimentos ,Manipulação de ovos ,Desenho de processo ,Teletrabalho - Abstract
O estudo de caso descreve os procedimentos higiênicos estabelecidos em um serviço de alimentação, que mudou a operação de ovos em pó para ovos in natura, demandando 500 unidades/dia para produzir pelo menos 2.000 refeições. O diagnóstico do processo foi conduzido durante a pandemia de COVID-19 por uma equipe multiprofissional, através de vídeos das etapas de processamento dos ovos e webconferências. O desenho de processo foi definido por teletrabalho, pela elaboração de fluxograma e descritivo do processo, incluindo requisitos para a aquisição dos ovos, boas práticas de manipulação, procedimentos de higiene operacional e controle das condições de cocção. A avalição com foco no fluxo de ovos aumentou a confiabilidade do sistema como um todo, de forma rápida e sem demandar investimentos econômicos substanciais. O desenho de processo estabelecido neste estudo de caso poderá ser empregado por outros serviços de alimentação, fortalecendo o sistema de gestão da qualidade das refeições e o status do ovo in natura como alimento seguro, nutritivo e versátil. Made available in DSpace on 2021-09-21T02:07:18Z (GMT). No. of bitstreams: 1 1767-7943-1-PB-1-1.pdf: 734516 bytes, checksum: 92206bdf1252875b5db0b34ba23bd8a0 (MD5) Previous issue date: 2020
- Published
- 2020
8. O ensino de ciências no espaço do atendimento educacional especializado mediado por abordagem CTS
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de Mello, Ana Rita Gonçalves Ribeiro, Messeder, Jorge Cardoso, and Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro
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Specialized Educational Service ,Students with disabilities ,Teaching and learning ,Teaching Science ,Technology and Society ,Didactic strategies ,Multidisciplinar - Ensino de Ciências e Matemática ,Atendimento Educacional Especializado ,Alunos com deficiência ,Ensino e aprendizagem ,Ensino de ciências ,Tecnologia e Sociedade ,Estratégias didáticas - Abstract
This article is an excerpt from research developed at the Professional Master's level in Science Teaching, characterized by a qualitative approach research, of the intervention research type, with the voluntary participation of seven Specialized Educational Service (SES) students, from a municipal school in Baixada Fluminense. In view of this, the objective of this article is to show a few didactic strategies in Science teaching, through the Science, Technology and Society (STS) approach, that were developed and that can be used by the SES teacher to teach science to students with disabilities, using the following resources: children's literature, games, videos and dialogue. In this way, the article brings the construction of the subjects' knowledge, which was based on the representation of their speech and subjectivity in the light of theoretical references of the STS approach and of special education, in the inclusive perspective. And, following the line of reasoning, some results are presented that show that the students had high self-esteem in front of themselves and in front of the group, the improvement of the organization and the processing of thought, the articulation and exposition of ideas, the improvement of the orality and the improvement of dialogicity with teachers and peers. Even so, the educational product affiliated with the research, a digital magazine entitled “Experiences in STS & Special Education”, confirms the teaching and learning possibilities of SES students, through the teaching of Science in STS, aiming at the development of skills and abilities aimed at a more critical citizen education. Este artigo trata do recorte de uma pesquisa desenvolvida em nível de Mestrado Profissional em Ensino de Ciências, caracterizando-se numa pesquisa de abordagem qualitativa, do tipo pesquisa-intervenção, com a participação voluntária de sete alunos do Atendimento Educacional Especializado (AEE), de uma escola municipal da Baixada Fluminense. À vista disso, o objetivo desse artigo é mostrar algumas estratégias didáticas em ensino de Ciências, por meio da abordagem em Ciência, Tecnologia e Sociedade (CTS), que foram desenvolvidas e que podem ser usadas pelo professor do AEE para ensinar ciências aos alunos com deficiência, com a utilização dos seguintes recursos: literatura infantil, jogos, vídeos e diálogo. Dessa forma, o artigo traz a construção do conhecimento dos sujeitos, que se baseou na representação da fala e subjetividade dos mesmos à luz de referenciais teóricos do enfoque CTS e da educação especial, na perspectiva inclusiva. E, seguindo a linha de fundamentação, são apresentados alguns resultados que mostram que os alunos tiveram a autoestima elevada diante de si mesmo e diante do grupo, a melhora da organização e do processamento do pensamento, a articulação e exposição de ideias, o aperfeiçoamento da oralidade e a melhora da dialogicidade com professores e pares. Ainda assim, o produto educacional filiado à pesquisa, uma revista digital intitulada “Experiências em CTS & Educação Especial”, ratifica possibilidades de ensino e aprendizagem dos alunos do AEE, por meio do ensino de Ciências em CTS, visando o desenvolvimento de competências e habilidades voltadas para uma formação cidadã mais crítica.
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- 2022
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9. Precipitação e aporte de nutrientes em diferentes estádios sucessionais de floresta Atlântica, Pinheiral - RJ
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Deivid Lopes Machado, Fabiano de Carvalho Balieiro, Carlos Eduardo Gabriel Menezes, Marcos Gervasio Pereira, Anderson Ribeiro Diniz, Universidade Federal Rural do Rio de Janeiro, Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Universidade Estadual Paulista (UNESP), Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, ANDERSON RIBEIRO DINIZ, UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO, MARCOS GERVASIO PEREIRA, UFRRJ, FABIANO DE CARVALHO BALIEIRO, CNPS, DEIVID LOPES MACHADO, UNIVERSIDADE ESTADUAL PAULISTA, CARLOS EDUARDO GABRIEL MENEZES, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro., Universidade Federal Rural do Rio de Janeiro (UFRRJ), Universidade Estadual Paulista (Unesp), and Inst Fed Educ Ciencia & Tecnol Rio de Janeiro
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lcsh:Agriculture ,Ecologia de comunidade ,lcsh:S ,lcsh:SD1-669.5 ,Forestry ,Community ecology ,lcsh:Forestry ,ecologia de comunidades ,Succession ,Water balance ,balanço hídrico ,sucessão - Abstract
RESUMO A cobertura florestal possui importância dentro do contexto do balanço hídrico de determinado local, podendo alterar o mecanismo de entrada de água e nutrientes na superfície do solo. Apresenta-se o resultado de um estudo que visou quantificar a precipitação efetiva, a interceptação e a adição de nutrientes na precipitação interna e no escoamento pelo tronco em um remanescente florestal da Mata Atlântica com diferentes estádios sucessionais: floresta secundária em estádio inicial (FSEI), floresta secundária em estádio médio (FSEM) e floresta secundária em estádio avançado (FSEA). O estudo foi conduzido no município de Pinheiral - RJ, durante o período de abril de 2009 a março de 2010. Os valores de precipitação incidente, precipitação efetiva e de interceptação foram similares entre os três estádios avaliados. A área de FSEA apresentou maiores valores de Mg e P na adição de nutrientes via precipitação interna em relação às demais áreas avaliadas. O pH da água da precipitação interna não diferiu entre as áreas, mas foi mais elevado do que o pH da precipitação total. As três áreas avaliadas não apresentaram diferença quanto à adição de nutrientes via escoamento pelo tronco. A área FSEA apresentou uma tendência de maiores valores de adição de nutrientes via precipitação interna e escoamento pelo tronco. ABSTRACT Forest cover has importance within the context of the water balance of a particular site and may alter the mechanism of entry of water and nutrients to the soil surface. The aim of this study was to quantify the net precipitation, interception, addition of nutrients in throughfall and stem flow in a forest in different stages of regeneration of Mata Atlântica: early-stage secondary forest (ESSF), intermediary stage secondary forest (ISSF) and advanced stage secondary forest (AESF). The study was conducted in Pinheiral, Rio de Janeiro state. The data collection was performed during the period of April 2009 to March 2010. The values of incident precipitation, effective precipitation and interception were similar among the three stages evaluated. The AESF area showed higher values of Mg and P in the addition of nutrients from throughfall compared with other areas assessed. The pH of the precipitation incident did not differ among areas, but was higher than the pH of rainfall. The three areas evaluated showed no difference in the addition of nutrients to flow through the trunk. The AESF area showed a trend of higher levels of addition of nutrients from throughfall precipitation and runoff from stemflow.
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- 2013
10. A formação do terapeuta ocupacional para atuação na Ateção Primária em Saúde: uma revisão da literatura/The formation of occupational therapist for primary health care: a literature review
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Naila Pereira Souza, Bruno Costa Poltronieri, Bárbara dos Santos Gameleira, Karoline de Souza Alves, and Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro (IFRJ).
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Terapia Ocupacional ,Atenção Primária à Saúde ,Formação em Saúde ,General Medicine - Abstract
Nos ultimos anos, obteve-se maior insercao de terapeutas ocupacionais em servicos que compoe a Atencao Primaria em Saude (APS). O objetivo deste estudo e analisar a producao cientifica brasileira acerca da formacao do terapeuta ocupacional para a atuacao na APS. Realizou-se uma busca nas bibliotecas e bases de dados CAPES, SCIELO, LILACS e em periodicos da profissao no pais, resultando em 16 artigos a serem revisados e discutidos atraves de analise tematica. A partir da leitura do material foi identificado a repeticao de nucleos de sentido sendo definido a organizacao do conteudo nos seguintes temas: 1) Principios, diretrizes e ferramentas da APS na formacao do terapeuta ocupacional; 2) Diferentes cenarios e estrategias de ensino na formacao do terapeuta ocupacional e; 3) Principais desafios vivenciados na formacao em terapia ocupacional para atuacao na APS. Observou-se que na formacao foram discutidas a importância da longitudinalidade do cuidado, a ordenacao da rede, e a relevância do aprendizado das principais ferramentas, como o acolhimento, o vinculo, a clinica ampliada, o apoio matricial e o Projeto Terapeutico Singular. Esses conceitos da pratica na APS sao vivenciados desde a graduacao ate a formacao continuada. Considera-se que o aprendizado vem se dando em consonância com as Diretrizes Curriculares Nacionais do curso, atraves de experiencias teorico-praticas e sob a luz dos principais conceitos, principios e diretrizes das principais politicas publicas voltadas ao estabelecimento e organizacao da APS, independente dos obstaculos encontrados. Abstract In recent years, it was obtained greater insertion of occupational therapists in services that compose the Primary Health Care (PHC). The purpose of this study is to analyze the Brazilian scientific production about the formation of the occupational therapist to work in PHC. A search was performed in the libraries and databases CAPES, SCIELO, LILACS and in professional journals in the country, resulting in 16 articles to be reviewed and discussed through thematic analysis. From the reading of the material was identified the repetition of center of meaning being defined the organization of content in the following themes: 1) Principles, guidelines and tools of PHC in the training of occupational therapist; 2) Different scenarios and teaching strategies in occupational therapist training and; 3) Main challenges experienced in occupational therapy training for PHC. It was observed that the experiences are based on the main guidelines, recognizing the importance of longitudinality of care and ordering of the network, and the relevance of learning the main tools such as welcoming, bonding, expanded clinic, matrix support and the Singular Therapeutic Project. These concepts of practice in PHC are experienced since graduation until the spaces of continuing education as multidisciplinary residences and graduate programs. Learning is considered to be in line with the National Curriculum Guidelines of the course, through theoretical and practical experiences and in the light of the main concepts, principles and guidelines of the main public policies aimed at establishing and organizing PHC regardless of obstacles encountered. Key words: Occupational Therapy; Primary Health Care; Professional Qualification. Resumen En los ultimos anos, se logro una mayor insercion de terapeutas ocupacionales en los servicios que componen la Atencion Primaria de Salud (APS). El objetivo de este estudio es analizar la produccion cientifica brasilena sobre la formacion del terapeuta ocupacional para trabajar en APS. Se realizo una busqueda en las bibliotecas y bases de datos periodicas de CAPES, SCIELO, LILACS y en revistas profesionales del pais, lo que resulto en 16 articulos para ser revisados y discutidos mediante analisis tematico. A partir de la lectura se identifico la repeticion de nucleos de significado definiendose la organizacion del contenido en los siguientes temas: 1) Principios, pautas y herramientas de APS en la formacion del terapeuta ocupacional; 2) Diferentes escenarios y estrategias de ensenanza en la formacion del professional y; 3) Principales desafios experimentados en la capacitacion en TO para la APS. Se observo que las experiencias se guian por las pautas principales, reconociendo la importancia de la longitudinalidad de la atencion, el orden de la red, y la relevancia de aprender las herramientas principales como la bienvenida, el vinculo, la clinica ampliada, el apoyo matricial y el Proyecto Singular Terapeutico. Estos conceptos de practica en APS se experimentan desde espacios de pregrado hasta educacion continua. Se considera que el aprendizaje esta en linea con las Directrices Curriculares Nacionales del curso, a traves de experiencias teoricas y practicas y a la luz de los principales conceptos, principios y directrices de las principales politicas publicas destinadas a establecer y organizar la APS independientemente de los obstaculos encontrados. Palabras clave: Terapia ocupacional; Atencion primaria de salud; Formacion Profesional.
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- 2020
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11. Decomposition of the CO stretching vibration band of laboratory H2O-CO ices irradiated by heavy ions
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Hermann Rothard, E. F. da Silveira, A. L. F. de Barros, Alicja Domaracka, Ph. Boduch, E. Seperuelo Duarte, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Centro Federal de Educação Tecnológica Celso Suckow da Fonseca (Rio de Janeiro) ( CEFET/RJ), Pontifical Catholic University of Rio de Janeiro (PUC), Atomes, Molécules et Agrégats (AMA), Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Matériaux, Défauts et IRradiations (MADIR), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), and Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)
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Physics ,[PHYS]Physics [physics] ,010504 meteorology & atmospheric sciences ,solid state -ISM ,010308 nuclear & particles physics ,molecules -infrared ,Analytical chemistry ,Astronomy and Astrophysics ,Ice mantles ,01 natural sciences ,Decomposition ,Ion ,Vibration ,astrochemistry -solid state ,13. Climate action ,Space and Planetary Science ,general ,0103 physical sciences ,Irradiation ,volatile -methods ,laboratory ,ISM ,0105 earth and related environmental sciences - Abstract
H2O and CO molecules are the main constituents of the interstellar dust grain ice mantles. Infrared spectra of the ices in line of sights of young stellar objects and background stars have shown that the CO stretching vibration band can be decomposed into three main components: 2143, 2139 and 2136 cm−1, assigned to CO in different environment sites. The relative strengths between the components have been associated to an evolutionary track of the interstellar molecular clouds. H2O:CO (3:2) and (10:1) ices samples were irradiated by 0.79 MeV/u 58Ni13 + ions to simulate the effects produced by heavy ion cosmic rays in typical interstellar ices mixtures. The CO stretching vibration band is decomposed into six Gaussians functions (2150, 2144, 2141, 2138, 2136 and 2133 cm−1) and their integrated absorbances were measured as a function of fluence. The results have shown that, at the final fluence, the component 2138 cm−1 is the main component of the CO stretching vibration band. The component 2150 cm−1 disappears at the beginning of irradiation. Based on the present and previous results, a time scale for the components in the interstellar ices is proposed. For H2O:CO ice in the ISM it is predicted that, after 1 Myrs, the main components of the CO stretching vibration band are the 2138 cm−1 and 2141 cm−1, due to the CO monomers and dimers, respectively.
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- 2021
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12. Batalhas públicas pela história nas redes sociais: articulações para uma educação histórica em direitos humanos
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João Carlos Escosteguy Filho, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, CNPq, and Faperj
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História ,General Medicine - Abstract
O artigo objetiva analisar visões sobre o passado em páginas autointituladas conservadoras, ou “de direita”, na rede social Facebook. Pressupomos que, nos últimos anos, foi construída uma relação direta entre crescimento das redes sociais e ascensão de certa visão de mundo “de direita” sobre o passado que embasa projetos de sociedade no Brasil. Com base nas propostas da história pública e da educação em direitos humanos, e focando na análise de postagens das páginas virtuais sobre um “tema sensível” específico, a dupla escravidão-racismo, pretendemos analisar de que maneira certa concepção de mundo conservadora se coaduna com uma perspectiva de passado que, dissolvendo o peso do ontem sobre o agora, acaba também anulando a densidade histórica necessária a uma atitude historiadora comprometida com qualquer projeto emancipatório de sociedade.
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- 2019
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13. Therapeutic Effects of Probiotic Minas Frescal Cheese on the Attenuation of Ulcerative Colitis in a Murine Model
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Cordeiro, Barbara Fernandes, Alves, Juliana de Lima, Angeli Belo, Giovanna, Oliveira, Emiliano Rosa, Braga, Marina P., Lemos, Luisa, Guimaraes, Jonas T., Silva, Ramon Lima, Rocha, Ramon S., Jan, Gwénaël, Silva, Marcia C., Freitas, Mônica Q., Esmerino, Erik A., Gala Garcia, Alfonso, Ferreira, Ennio, Faria, Anna Maria C., Cruz, Adriano G., Azevedo, Vasco, Rosa Do Carmo, Fillipe Ruiz, Instituto de Ciencias Biologicas [Minas Gerais], Universidade Federal de Minas Gerais [Belo Horizonte] (UFMG), Massachusetts General Hospital, Harvard Medical School [Boston] (HMS), Fluminense Federal University [Niterói], Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Science et Technologie du Lait et de l'Oeuf (STLO), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), and This work was supported by the Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).
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functional food ,cheese ,Lactococcus lactis ,[SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology ,colitis ,inflammatory bowel disease ,[SDV]Life Sciences [q-bio] ,digestive system diseases ,probiotic ,[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology - Abstract
International audience; Inflammatory bowel diseases (IBDs) constitute disturbances of gastrointestinal tract that cause irreversible changes in the structure and function of tissues. Ulcerative colitis (UC), the most frequent IBD in the population, is characterized by prominent inflammation of the human colon. Functional foods containing probiotic bacteria have been studied as adjuvants to the treatment or prevention of IBDs. The selected probiotic strain Lactococcus lactis NCDO 2118 (L. lactis NCDO 2118) exhibits immunomodulatory effects, with promising results in UC mouse model induced by dextran sodium sulfate (DSS). Additionally, cheese is a dairy food that presents high nutritional value, besides being a good delivery system that can be used to improve survival and enhance the therapeutic effects of probiotic bacteria in the host. Therefore, this work investigated the probiotic therapeutic effects of an experimental Minas Frescal cheese containing L. lactis NCDO 2118 in DSS-induced colitis in mice. During colitis induction, mice that consumed the probiotic cheese exhibited reduced in the severity of colitis, with attenuated weight loss, lower disease activity index, limited shortening of the colon length, and reduced histopathological score. Moreover, probiotic cheese administration increased gene expression of tight junctions’ proteins zo-1, zo-2, ocln, and cln-1 in the colon and increase IL-10 release in the spleen and lymph nodes. In this way, this work demonstrates that consumption of probiotic Minas Frescal cheese, containing L. lactis NCDO 2118, prevents the inflammatory process during DSS-induced colitis in mice, opening perspectives for the development of new probiotic functional foods for personalized nutrition in the context of IBD.
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- 2021
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14. Greenhouse gas emissions (CO2 and CH4) and inorganic carbon behavior in an urban highly polluted tropical coastal lagoon (SE, Brazil)
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Luiz C. Cotovicz, Daniel Tremmel, Luciana O. Vidal, Bastiaan A. Knoppers, Gwenaël Abril, Carolina Ramos Régis, Rodrigo Lima Sobrinho, Marcelo Bernardes, Renato Pereira Ribeiro, Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Universidade Federal Fluminense [Rio de Janeiro] (UFF), Universidade Federal do Ceará = Federal University of Ceará (UFC), Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, and Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF)
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Health, Toxicology and Mutagenesis ,[SDE.MCG]Environmental Sciences/Global Changes ,Environment pollution ,010501 environmental sciences ,01 natural sciences ,chemistry.chemical_compound ,Total inorganic carbon ,Phytoplankton ,Dissolved organic carbon ,Environmental Chemistry ,Organic matter ,14. Life underwater ,Monóxido de carbono ,ComputingMilieux_MISCELLANEOUS ,0105 earth and related environmental sciences ,chemistry.chemical_classification ,Poluição ambiental ,Hypoxia (environmental) ,General Medicine ,Pollution ,Metano ,6. Clean water ,Carbon dioxide ,Coastal eutrophication ,chemistry ,13. Climate action ,Coastal lagoons ,Environmental chemistry ,Greenhouse gas ,[SDE]Environmental Sciences ,Environmental science ,Carbonate chemistry ,Eutrophication ,Methane - Abstract
International audience; Increasing eutrophication of coastal waters generates disturbances in greenhouse gas (GHG) concentrations and emissions to the atmosphere that are still poorly documented, particularly in the tropics. Here, we investigated the concentrations and diffusive fluxes of carbon dioxide (CO2) and methane (CH4) in the urban-dominated Jacarepagua Lagoon Complex (JLC) in Southeastern Brazil. This lagoonal complex receives highly polluted freshwater and shows frequent occurrences of anoxia and hypoxia and dense phytoplankton blooms. Between 2017 and 2018, four spatial surveys were performed (dry and wet conditions), with sampling in the river waters that drain the urban watershed and in the lagoon waters with increasing salinities. Strong oxygen depletion was found in the rivers, associated with extremely high values of partial pressure of CO2 (pCO2; up to 20,417 ppmv) and CH4 concentrations (up to 288,572 nmol L−1). These high GHG concentrations are attributed to organic matter degradation from untreated domestic effluents mediated by aerobic and anaerobic processes, with concomitant production of total alkalinity (TA) and dissolved inorganic carbon (DIC). In the lagoon, GHG concentrations decreased mainly due to dilution with seawater and degassing. In addition, the phytoplankton growth and CH4 oxidation apparently consumed some CO2 and CH4, respectively. TA concentrations showed a marked minimum at salinity of ~20 compared to the two freshwater and marine end members, indicating processes of re-oxidation of inorganic reduced species from the low-salinity region, such as ammonia, iron, and/or sulfides. Diffusive emissions of gases from the entire lagoon ranged from 22 to 48 mmol C m−2 d−1 for CO2 and from 2.2 to 16.5 mmol C m−2 d−1 for CH4. This later value is among the highest documented in coastal waters. In terms of global warming potential (GWP) and CO2 equivalent emissions (CO2-eq), the diffusive emissions of CH4 were higher than those of CO2. These results highlight that highly polluted coastal ecosystems are hotspots of GHG emissions to the atmosphere, which may become increasingly significant in future global carbon budgets.
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- 2021
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15. CAMINATA DEL PRIVILEGIO Y LAS CAUSAS PERCIBIDAS DE LA DESIGUALDAD SOCIAL: UN DEBATE CON LOS ESTUDIANTES DE EDUCACIÓN FÍSICA
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Loiola, Mariana Costa, Alves, Heytor de Queiroz, Vaz, Mariana Fonseca, Oliveira, Alexandre Palma de, Imbiriba, Luís Aureliano, Macedo, Adriana Ribeiro de, National Council of Scientific and Technological Development. Federal Institute of Education, Science and Technology of Rio de Janeiro., Consejo Nacional de Desarrollo Científico y Tecnológico. Instituto Federal de Educación, Ciencia y Tecnología de Río de Janeiro., Conselho Nacional de Desenvolvimento Científico e Tecnológico, and Instituto Federal de Educação, Ciência e Tecnologia do Rio de janeiro.
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Estudantes. Educação Física. Emoções. Percepção social ,Educação socialmente referenciada em educação física: debate sobre desigualdades sociais ,socially referenced education ,integral education in physical education ,social issues and physical education ,Estudiantes. Educación Física. Emociones. Percepción social ,Students. Physical education. Emotions. Social Perception - Abstract
Putting social representations at school in perspective is not an easy task. This study analyzed perceptions of ten Physical Education students before and after the Privilege Walk – activity that represents individual histories through steps – in order to understand its effects on the group, considering the previous perceptions of their own social positions, factors related to those positions, and changes of perspective triggered by the Privilege Walk. Students correctly estimated their final positions in the Walk, but they expected smaller differences among them as a result of individual effort and access to rights and privileges. However, after the Privilege Walk, they observed major distances among them, and issues of gender, sexual orientation, family support and economic condition were perceived as crucial. Racism was mentioned in the questionnaire but not in the group, indicating the difficulty of holding an open debate about social issues., Discutir las representaciones sociales no es una tarea fácil. En este trabajo, las percepciones de diez estudiantes de EF antes y después de la Caminata del Privilegio —dinámica que representa la trayectoria de vida de los participantes a través de pasos— fueron analizadas con el objetivo de comprender los efectos de la actividad sobre el grupo, a partir de las percepciones de sus posiciones sociales, de los factores atribuidos a tales posiciones y de los cambios de perspectiva desencadenados por la Caminata del Privilegio. Los estudiantes estimaron correctamente sus posiciones finales en la Caminata, aunque esperaban encontrar poca diferencia entre ellos producto del esfuerzo individual y del acceso a derechos y privilegios. Sin embargo, después de la Caminata del Privilegio, observaron una gran distancia entre ellos y cuestiones como género, orientación sexual, apoyo familiar y condición económica fueron percibidas como centrales. El racismo fue citado, pero de forma reservada, en cuestionario, indicando la dificultad en el debate abierto de cuestiones sociales., Colocar em perspectiva as representações sociais não é tarefa fácil. Neste trabalho, as percepções de dez estudantes de Educação Física antes e após a Caminhada do Privilégio – dinâmica que representa a trajetória de vida dos participantes através de passos – foram analisadas visando compreender os efeitos da atividade sobre o grupo a partir das percepções de suas posições sociais, dos fatores atribuídos a tais posições e das mudanças de perspectiva desencadeadas pela Caminhada do Privilégio. Os estudantes estimaram corretamente suas posições finais na Caminhada, porém esperavam encontrar pouca diferença entre eles, decorrente do esforço individual e do acesso a direitos e privilégios. Contudo, após a Caminhada do Privilégio, observaram uma grande distância entre eles e questões como gênero, orientação sexual, apoio familiar e condição econômica foram percebidas como centrais. O racismo foi citado, mas de forma reservada, em questionário, indicando a dificuldade de debate aberto de temas sociais.
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- 2019
16. Видалення нафти з водних систем полідивінілбензеновими та поліметилметакрилат-дивінілбензеновими смолами: ізотермальні та кінетичні дослідження
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Thiago Muza Aversa, Paulo C. S. Rocha, Elizabete F. Lucas, Carla Michele Frota da Silva, Universidade Federal do Rio de Janeiro, and Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro (IFRJ)
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кінетична модель ,Aqueous solution ,General Chemical Engineering ,адсорбція ,isotherm model ,oily water treatment ,General Chemistry ,kinetic model ,porous polymer resins ,Divinylbenzene ,Kinetic energy ,Poly(methyl methacrylate) ,Isothermal process ,chemistry.chemical_compound ,chemistry ,пористі полімерні смоли ,adsorption ,visual_art ,оброблення нафтовмісної води ,visual_art.visual_art_medium ,ізотерма ,Nuclear chemistry - Abstract
та дивінілбензенова (ДВБ) смоли для адсорбції нафти в штучному середовищі нафта-вода. Дослідження проводили для двох процесів: (i) безперервний процес для оцінювання кількості води з нафтою, яку можна елюювати до досягнення межі насичення смол; і (ii) періодичний процес для одержання кінетичної та ізотермічної моделі двох смол., Встановлено, що для обох смол результати найкраще відповідають ізотермі Фройндліха та кінетичній моделі псевдодругого порядку. Знайдені значення низької енергії активації свідчать про фізичну адсорбцію між смолами та нафтою. Показано, що незважаючи на непогану ефективність ДВБ смоли щодо видалення нафти, її можна замінити промисловою смолою MMA-ДВБ, завдяки таким перевагам як менша вартість, токсичність та легкість регенерації. In this study, the performance of two polymer resins was evaluated, one composed of methyl methacrylate-divinylbenzene (MMA-DVB) and the other of only divinylbenzene (DVB), for adsorption of oil in synthetic oily wastewater. The tests were carried out using two processes: (i) continuous flow, to assess the quantity of oily water that can be eluted until reaching the saturation point of resins; and (ii) batch, to obtain information about the best-fitting kinetic and isotherm models for the two resins. The results for both resins showed better fits to the Freundlich isotherm model and the pseudo-second-order kinetic model. The low activation energy values found suggest physical adsorption between the resins and oil. Although DVB resin has presented slightly better oil removal efficiency than the MMA-DVB one, the results showed that DVB resin can be industrially replaced by MMA-DVB resin, due to the latter advantages: lower cost, lower toxicity and easy regeneration, as indicated by the kinetic and isothermstudies.
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- 2019
17. Green banana biomass: Physicochemical and functional properties and its potential as a fat replacer in a chicken mortadella
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Simone Pereira Mathias, Everaldo Zonta, Amauri Rosenthal, Erick A. Esmerino, Fernando Jensen Braz Corrêa, Raul Castro Carriello Rosa, Bruna Emygdio Auriema, Paula Thaís dos Santos Soares, Rosa Helena Luchese, Jonas T. Guimarães, Bruna Emygdio Auriema, UFRRJ, Fernando Jensen Correa, UFRRJ, Jonas de Toledo Guimarães, UFF, Paula Thaís dos Santos Soares, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Maracana, Everaldo Zonta, UFRRJ, RAUL CASTRO CARRIELLO ROSA, CNPAB, AMAURI ROSENTHAL, CTAA, Rosa Helena Luchese, UFRRJ, Erick Almeida Esmerino, UFRRJ, and Simone Pereira Mathias, UFRRJ.
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0106 biological sciences ,Sensory profiling ,Mortadella ,food.ingredient ,Potassium ,chemistry.chemical_element ,01 natural sciences ,Food technology ,Ingredient ,chemistry.chemical_compound ,0404 agricultural biotechnology ,food ,010608 biotechnology ,Gallic acid ,Food science ,Resistant starch ,Flavor ,Natural ingredient ,Magnesium ,04 agricultural and veterinary sciences ,040401 food science ,Fat replacer ,chemistry ,Dietary fiber ,Trolox ,Descriptive analysis ,Food Science - Abstract
The potential of green banana biomass (GBB) as a natural ingredient and its impact as a fat replacer in chicken mortadella on sensory perception were investigated. The GBB was assessed for physicochemical characterization, antioxidant capacity and antimicrobial activity. Five chicken mortadella formulations were developed with fat replacement of 25, 50, 75 and 100% by GBB. Microbiological stability of the formulations was assessed, and the sensory profiling was evaluated by Preferred Attribute Elicitation (PAE). The dietary fiber, resistant starch, total phenolic compounds and antioxidant capacity in GBB were 3.99%, 4.16%, 518.39 mg GAE/100 g (GAE: Gallic acid equivalent) of dry sample, 5307.62 ?mol of trolox equivalent (TE)/100 g of dry sample and 3583.12 ?mol of trolox equivalent (TE)/100 g of dry sample, respectively. GBB contained potassium (1121 mg/100 g), phos- phorus (183.6 mg/100 g), magnesium (77.4 mg/100 g), copper (0.53 mg/100 g) and iron (7.21 mg/100 g). The microbial counts in the formulations after 90 days of chill storage were within the safe limit. The results concluded that GBB showed desirable functional and technological proprieties to be used in chicken mortadella without affecting the characteristic flavor of these products. Besides, PAE proved to be a potential method to characterize chicken mortadella. Made available in DSpace on 2022-06-01T13:19:38Z (GMT). No. of bitstreams: 1 1-s2.0-S0023643820316741-main.pdf: 1722136 bytes, checksum: 6b746f87a531b4bdf42937763b381c80 (MD5) Previous issue date: 2021
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- 2021
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18. A visão sobre a ciência e cientistas: explorando concepções em um clube de ciências
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Patrícia do Socorro de Campos da Silva, Sonia Barbosa dos Santos, Giselle Rôças, and Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro - FAPERJ, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro - IFRJ, Escola Municipal Telêmaco Gonçalves Maia, Secretara Municipal de Educação da Cidade do Rio de Janeiro.
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lcsh:LC8-6691 ,lcsh:Special aspects of education ,General Engineering - Abstract
Clubes de Ciências estreitam a relação entre ciência e estudantes, a partir de atividades que viabilizem a experiência e contato com a ciência e cientistas. Este trabalho explora a compreensão destes alunos sobre a ciência, cientista e o trabalho científico antes e após as ações. Entre os resultados, verificamos uma possível redução do estereótipo acerca do trabalho científico e do cientista e uma visão mais ampla sobre a ciência. Concluímos que a aproximação com a ciência é um dos instrumentos para o enfrentamento de paradigmas, auxiliando na compreensão do papel social, político e ético da Ciência na sociedade. A partir desta vivência propomos a divulgação científica com atividades como ciclo de palestras, visita a laboratórios de pesquisas e discussões acerca da ciência e do trabalho científico. Em nossa experiência, tais ações auxiliaram na compreensão por parte dos alunos, de que a ciência é feita por nós e nos pertence.
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- 2016
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19. Electronic State Spectroscopy of Halothane As Studied by ab Initio Calculations, Vacuum Ultraviolet (VUV) Synchrotron Radiation and Electron Scattering Methods
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Denis Duflot, Paulo Limão-Vieira, Nykola C. Jones, A. M. Ferreira-Rodrigues, G. G. B. de Souza, Samuel Eden, Flavio N. Rodrigues, Søren Vrønning Hoffmann, F. Ferreira da Silva, Nicholas J Mason, Centro de Física e Investigação Tecnológica [Lisboa] (CEFITEC), Departamento de Fìsica [Lisboa] (DF), Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA), Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Faculdade de Ciências e Tecnologia = School of Science & Technology (FCT NOVA), Universidade Nova de Lisboa = NOVA University Lisbon (NOVA)-Universidade Nova de Lisboa = NOVA University Lisbon (NOVA), Physico-Chimie Moléculaire Théorique (PCMT), Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 (PhLAM), Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Department of Physics and Astronomy [Aarhus], Aarhus University [Aarhus], Instituto de Química, Universidade de São Paulo, Departamento da Ciência da Natureza e Matemática, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, DCN, Instituto de Biociências, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), School of Physical Sciences [Milton Keynes], Faculty of Science, Technology, Engineering and Mathematics [Milton Keynes], The Open University [Milton Keynes] (OU)-The Open University [Milton Keynes] (OU), Portuguese National Funding Agency FCT-MEC through researcher and sabbatical grants, IF-FCT IF/00380/2014 and SFRH/BSAB/105792/2014, research grants PTDC/FIS-ATO/1832/2012 and UID/FIS/00068/2013, British EPSRC through a Life Sciences Interface Fellowship (EP/E039618/1), a Career Acceleration Fellowship (EP/J002577/1), Research Grant (EP/L002191/1), and ANR-11-LABX-0005,Cappa,Physiques et Chimie de l'Environnement Atmosphérique(2011)
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Valence (chemistry) ,Vacuum ,Absorption spectroscopy ,Ultraviolet Rays ,Chemistry ,Photoelectron Spectroscopy ,Photodissociation ,Synchrotron radiation ,Electrons ,7. Clean energy ,symbols.namesake ,13. Climate action ,Ab initio quantum chemistry methods ,Rydberg formula ,symbols ,Quantum Theory ,[PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph] ,Physical and Theoretical Chemistry ,Atomic physics ,Halothane ,Spectroscopy ,Electron scattering ,Synchrotrons - Abstract
International audience; We present the first set of ab initio calculations (vertical energies and oscillator strengths) of the valence and Rydberg transitions of the anaesthetic compound halothane (CF3CHBrCl). These results are complemented by high-resolution vacuum ultraviolet photoabsorption measurements over the wavelength range 115–310 nm (10.8–4.0 eV). The spectrum reveals several new features that were not previously reported in the literature. Spin–orbit effects have been considered in the calculations for the lowest-lying states, allowing us to explain the broad nature of the 6.1 and 7.5 eV absorption bands assigned to σ*(C–Br) ← nBr and σ*(C–Cl) ← nCl transitions. Novel absolute photoabsorption cross sections from electron scattering data were derived in the 4.0–40.0 eV range. The measured absolute photoabsorption cross sections have been used to calculate the photolysis lifetime of halothane in the upper stratosphere (20–50 km).
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- 2015
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20. Fauna edáfica na dinâmica sucessional da Mata Atlântica em floresta estacional semidecidual na Bacia do Rio Paraíba do Sul - RJ
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Marcos Gervasio Pereira, Anderson Ribeiro Diniz, Deivid Lopes Machado, Carlos Eduardo Gabriel Menezes, Maria Elizabeth Fernandes Correia, Universidade Estadual Paulista (Unesp), Universidade Federal Rural do Rio de Janeiro (UFRRJ), and Embrapa Agrobiologia|Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro
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lcsh:Agriculture ,Forest succession ,Sucessão florestal ,Fauna do solo ,lcsh:S ,lcsh:SD1-669.5 ,Forestry ,Indicadores edáficos ,Edaphic indicators ,lcsh:Forestry ,Soil fauna - Abstract
Made available in DSpace on 2015-08-26T19:21:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-03-01. Added 1 bitstream(s) on 2015-08-31T13:04:20Z : No. of bitstreams: 1 S1980-50982015000100091.pdf: 757880 bytes, checksum: 5081530911351433735615024b0704ab (MD5) Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) A fauna edáfica, pela sua diversidade e magnitude das funções que realiza no ambiente solo, pode refletir o estado de funcionamento dos ecossistemas. Neste sentido, este estudo teve como objetivo avaliar a atividade, composição estrutural e diversidade da comunidade da fauna do solo, em diferentes estádios sucessionais da Mata Atlântica, em Pinheiral - RJ. Para tanto, foram estudadas três áreas de Floresta Estacional Semidecidual Submontana em diferentes estádios sucessionais: Floresta em Estádio Inicial (FEI), Floresta em Estádio Médio (FEM) e Floresta em Estádio Avançado (FEA). Em cada área foi demarcada uma parcela de 30 m x 30 m. Para captura dos organismos epígeos da mesofauna e macrofauna, utilizaram-se armadilhas do tipo pitfall-traps, sendo distribuídas, aleatoriamente, 10 armadilhas em cada área. Foram realizadas amostragens em abril e agosto de 2009. A atividade dos organismos (ind arm-1 dia-1) e os índices ecológicos de riqueza e equidade de Pielou foram calculados a partir da quantificação e identificação dos indivíduos amostrados. A partir da análise dos resultados, contatou-se que o mês de agosto, caracterizado com maior precipitação, influiu diretamente na atividade, composição estrutural e diversidade da fauna do solo. A estrutura populacional foi influenciada pelos estádios sucessionais, sendo que a atividade dos grupos Acari, Araneae, Diptera, Formicidae, Hymenoptera e Isopoda aumentou em função do avanço sucessional. A atividade total e o índice de riqueza média também responderam ao processo de sucessão. O grupo Entomobryomorpha foi o mais abundante em todas as áreas, sendo o responsável pelas variações do índice de Pielou. De maneira geral, verificaram-se maiores valores da atividade dos grupos, atividade total e riqueza média na FEA, e menores na FEI, confirmando, assim, o potencial uso desses organismos como indicadores da dinâmica sucessional em florestas secundárias. The soil fauna, for its diversity and magnitude of the tasks that it carries out in the soil environment, may reflect the state of the ecosystem functioning. Therefore, this study aimed to evaluate the activity, the structural composition and the diversity of soil fauna community in different successional stages of Atlantic forest, in Pinheiral, RJ state. Thus, three areas of lower montane semi-deciduous forest in different succession stages were studied: Forest in initial stage (FIS), Forest in intermediate stage (FINS) and Forest in advanced stage (FAS). In each area, it was demarcated a plot of 30 m x 30 m. To capture the epigean organisms, mesofauna and macrofauna, 'pitfall-traps' were used, being distributed, randomly, 10 traps in each area. The samples were taken in April and August 2009. The activity of organisms (arm ind-1 day-1) and ecological index of the richness and evenness were calculated from the quantification and identification of individuals sampled. From the analysis of the results, it was noticed that August featured higher precipitation and directly influenced the activity, structural composition and diversity of soil fauna. The population structure was influenced by successional stages, and group activity Acari, Araneae, Diptera, Formicidae, Hymenoptera and Isopoda increased with advancing succession. Total activity and average wealth index also responded to the advancement of vegetation. The group Entomobryomorpha was the most abundant in all areas, being responsible for the variations of the index of evenness. In general, there were higher values of group activity, total activity and average wealth in FAS, and lower the FIS, thus confirming the potential use of these organisms as indicators of successional dynamics of secondary forests. Universidade Estadual Paulista Júlio de Mesquita Filho, Campus Botucatu, Fazenda Lageado, Rua José Barbosa de Barros, 1780, Rod. Alcides Soares, Km 3, CEP 18610-307, Botucatu (SP), Brasil Universidade Federal Rural do Rio de Janeiro Departamento de Solos, Seropédica (RJ), Brasil Embrapa Agrobiologia,Seropédica (RJ), Brasil Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Campus Nilo Peçanha, Pinheiral (RJ), Brasil Universidade Estadual Paulista Júlio de Mesquita Filho, Campus Botucatu, Fazenda Lageado, Rua José Barbosa de Barros, 1780, Rod. Alcides Soares, Km 3, CEP 18610-307, Botucatu (SP), Brasil.
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- 2015
21. Biomassa, estoques de carbono e de nutrientes em estádios sucessionais da Floresta Atlântica, RJ
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Deivid Lopes Machado, Fabiano de Carvalho Balieiro, Marcos Gervasio Pereira, Anderson Ribeiro Diniz, Carlos Eduardo Gabriel Menezes, Universidade Federal Rural do Rio de Janeiro, Instituto de Agronomia, Departamento de Solos, Universidade Estadual Paulista (UNESP), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Campus Nilo Peçanha - Pinheiral, ANDERSON RIBEIRO DINIZ, UFRRJ, DEIVID LOPES MACHADO, UNESP, MARCOS GERVASIO PEREIRA, UFRRJ, FABIANO DE CARVALHO BALIEIRO, CNPS, and CARLOS EDUARDO GABRIEL MENEZES, IFRJ.
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Carbon sequestration ,Forest succession ,Ciclagem de nutrientes ,Litter ,Sucessão florestal ,General Agricultural and Biological Sciences ,Nutrients ciclyng ,Serapilheira ,Sequestro de carbono - Abstract
Made available in DSpace on 2022-04-28T19:01:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01 The forest fragments inserted in the area of Atlantic Forest have great importance in relation to the stock of carbon and nutrient cycling.This study aimed to estimate the biomass and carbon stock in biomass, litter stocks and stocks of carbon and nutrients in litter fall in two forests, with different successional stages (25 and 65), classified as secondary forest in medium stage (SFMS) and secondary forest in an advanced stage (SFAS), located in the basin of the Paraíba do Sul River, Pinheiral, RJ. In each successional stage was enclosed a plot of 50 x 50 m, where the samples were performed. The estimated above-ground biomass was 44.3 Mg ha- 1 in FSEM and 131.6 Mg ha-1 in FSEA, with the totals, including root biomass, respectively 57.6 Mg ha-1 and 171.0 Mg ha-1. The carbon stock of aboveground biomass was 20.8 Mg ha-1 in FSEM and 61.8 Mg ha-1 in FSEA. With regard to litter, there were higher values of inventory levels and contents of organic carbon and nutrients in FSEA. The accumulated litter on the ground proved to be an important transfer of N, Ca and Mg, standing out the contents of N on FSEA and the contents of Ca on FSEM. Universidade Federal Rural do Rio de Janeiro, Instituto de Agronomia, Departamento de Solos, BR 465 Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agronômicas de Botucatu, Rua José Barbosa de Barros, 1780 Embrapa Solos, Rua Jardim Botânico, 1024 Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Campus Nilo Peçanha - Pinheiral, 550, Rua José Breves - Centro Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências Agronômicas de Botucatu, Rua José Barbosa de Barros, 1780
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- 2015
22. Soil fauna in successional dynamics of atlantic forest in semi-deciduous seasonal forest in the basin of river ‘ParaÍba do Sul’, Rio de Janeiro state
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Machado, Deivid Lopes [UNESP], Pereira, Marcos Gervasio, Correia, Maria Elizabeth Fernandes, Diniz, Anderson Ribeiro, Menezes, Carlos Eduardo Gabriel, Universidade Estadual Paulista (UNESP), Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), Doutorando em Ciência do Solo na Universidade Federal Rural do Rio de Janeiro, and Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Campus Nilo Peçanha
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Forest succession ,Edaphic indicators ,Soil fauna - Abstract
Made available in DSpace on 2022-04-29T07:25:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01 The soil fauna, for its diversity and magnitude of the tasks that it carries out in the soil environment, may reflect the state of the ecosystem functioning. Therefore, this study aimed to evaluate the activity, the structural composition and the diversity of soil fauna community in different successional stages of Atlantic forest, in Pinheiral, RJ state. Thus, three areas of lower montane semi-deciduous forest in different succession stages were studied: Forest in initial stage (FIS), Forest in intermediate stage (FINS) and Forest in advanced stage (FAS). In each area, it was demarcated a plot of 30 m x 30 m. To capture the epigean organisms, mesofauna and macrofauna, pitfall-traps were used, being distributed, randomly, 10 traps in each area. The samples were taken in April and August 2009. The activity of organisms (arm ind-1 day-1) and ecological index of the richness and evenness were calculated from the quantification and identification of individuals sampled. From the analysis of the results, it was noticed that August featured higher precipitation and directly influenced the activity, structural composition and diversity of soil fauna. The population structure was influenced by successional stages, and group activity Acari, Araneae, Diptera, Formicidae, Hymenoptera and Isopoda increased with advancing succession. Total activity and average wealth index also responded to the advancement of vegetation. The group Entomobryomorpha was the most abundant in all areas, being responsible for the variations of the index of evenness. In general, there were higher values of group activity, total activity and average wealth in FAS, and lower the FIS, thus confirming the potential use of these organisms as indicators of successional dynamics of secondary forests. Doutorando em Ciências Florestais na Universidade Estadual Paulista Júlio de Mesquita Filho, Campus Botucatu, Fazenda Lageado Rua José Barbosa de Barros, 1780, Rod. Alcides Soares, Km 3 Departamento de Solos, Universidade Federal Rural do Rio de Janeiro, BR 465, Km 7 Pesquisadora da Embrapa Agrobiologia, BR 465, Km 7 Doutorando em Ciência do Solo na Universidade Federal Rural do Rio de Janeiro, BR 465, Km 7 Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Campus Nilo Peçanha, Rua José Breves, 550 Doutorando em Ciências Florestais na Universidade Estadual Paulista Júlio de Mesquita Filho, Campus Botucatu, Fazenda Lageado Rua José Barbosa de Barros, 1780, Rod. Alcides Soares, Km 3
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- 2015
23. PRECIPITATION AND NUTRIENT CONTRIBUTION IN DIFFERENT SUCCESSIONAL STAGES OF ATLANTIC FOREST, PINHEIRAL, RIO DE JANEIRO STATE
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Diniz, Anderson Ribeiro, Pereira, Marcos Gervasio, Balieiro, Fabiano De Carvalho, Machado, Deivid Lopes [UNESP], Menezes, Carlos Eduardo Gabriel, Universidade Federal Rural do Rio de Janeiro, Embrapa Solos, Universidade Estadual Paulista (Unesp), and Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro
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water balance ,ecologia de comunidades ,balanço hídrico ,community ecology ,sucessão ,succession - Abstract
Made available in DSpace on 2021-07-14T10:34:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2013. Added 1 bitstream(s) on 2021-07-14T11:33:13Z : No. of bitstreams: 1 S1980-50982013000300389.pdf: 1309027 bytes, checksum: 138d19e14200659c9a60c6a6c318461b (MD5) A cobertura florestal possui importância dentro do contexto do balanço hídrico de determinado local, podendo alterar o mecanismo de entrada de água e nutrientes na superfície do solo. Apresenta-se o resultado de um estudo que visou quantificar a precipitação efetiva, a interceptação e a adição de nutrientes na precipitação interna e no escoamento pelo tronco em um remanescente florestal da Mata Atlântica com diferentes estádios sucessionais: floresta secundária em estádio inicial (FSEI), floresta secundária em estádio médio (FSEM) e floresta secundária em estádio avançado (FSEA). O estudo foi conduzido no município de Pinheiral - RJ, durante o período de abril de 2009 a março de 2010. Os valores de precipitação incidente, precipitação efetiva e de interceptação foram similares entre os três estádios avaliados. A área de FSEA apresentou maiores valores de Mg e P na adição de nutrientes via precipitação interna em relação às demais áreas avaliadas. O pH da água da precipitação interna não diferiu entre as áreas, mas foi mais elevado do que o pH da precipitação total. As três áreas avaliadas não apresentaram diferença quanto à adição de nutrientes via escoamento pelo tronco. A área FSEA apresentou uma tendência de maiores valores de adição de nutrientes via precipitação interna e escoamento pelo tronco. Forest cover has importance within the context of the water balance of a particular site and may alter the mechanism of entry of water and nutrients to the soil surface. The aim of this study was to quantify the net precipitation, interception, addition of nutrients in throughfall and stem flow in a forest in different stages of regeneration of Mata Atlântica: early-stage secondary forest (ESSF), intermediary stage secondary forest (ISSF) and advanced stage secondary forest (AESF). The study was conducted in Pinheiral, Rio de Janeiro state. The data collection was performed during the period of April 2009 to March 2010. The values of incident precipitation, effective precipitation and interception were similar among the three stages evaluated. The AESF area showed higher values of Mg and P in the addition of nutrients from throughfall compared with other areas assessed. The pH of the precipitation incident did not differ among areas, but was higher than the pH of rainfall. The three areas evaluated showed no difference in the addition of nutrients to flow through the trunk. The AESF area showed a trend of higher levels of addition of nutrients from throughfall precipitation and runoff from stemflow. Universidade Federal Rural do Rio de Janeiro Embrapa Solos Universidade Estadual Paulista Júlio de Mesquita Filho Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro Universidade Estadual Paulista Júlio de Mesquita Filho
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- 2013
24. Biotecnétika : jogo integrador de conceitos emgenética
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Brão, Arianne Francielle Silva, Ana Maria Teresa Benevides-Pereira, Tânia Goldbach - Instituto Federal de Educação Ciência e Tecnologia do Rio de Janeiro - IFRJ, and Luzia Marta Bellini - UEM
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Jogos didáticos ,Brasil ,Matemática ,Educational games ,Genetics ,Conceptual maps ,Paraná ,Brazil ,Genética ,Mapas conceituais ,Ciências Exatas e da Terra - Abstract
When teaching Biological Sciences there is still a predominance of expositive lectures and a strategy to change this perspective has been the use of playfulness, as they awake interest and help the learning process. This work describes and verifies the game Biotecnetiks, as a tool to help the process of teaching and learning Genetics, subject considered one of the hardest in Biology, mainly due to its specific language. It has 26 cards called "theme" and 58 cards called "concept", and the game was put into practice to groups of 3rd year of High School in three schools of the public education system in a city of Paraná, Brazil. A questionnaire supplied indications of participants' opinion about the game, as well as a comparison between elaboration of conceptual maps made before and after the activity provided elements to evaluation. The questionnaires present 94% of positive answers concerning the use of the game and suggestions about its structure. The conceptual maps indicated 60% of evidence of Genetics learning, as well as 60% of students answered that the game helped the learning. The teachers that participated of the activity support the game, and highlight the possibility of using it in this configuration or even adapted to different classroom realities. No ensino das Ciências Biológicas, observa-se o predomínio de aulas expositivas; uma estratégia para mudar essa perspectiva tem sido o uso de atividades lúdicas, pelo interesse que despertam e por seu auxílio à aprendizagem. O presente estudo descreve e verifica o jogo Biotecnétika como auxiliar no processo de ensino-aprendizagem de Genética, conteúdo considerado dos mais difíceis em Biologia, em especial por sua linguagem específica. Composto por 26 cartas, denominadas como "temas" e 58 cartas "conceito", o jogo Biotecnétika foi aplicado às turmas de 3º ano do Ensino Médio de três colégios da rede estadual de ensino de uma cidade do interior do Paraná. Um questionário forneceu indicações sobre a opinião dos participantes sobre o jogo; e a comparação entre a elaboração de mapas conceituais realizados antes e depois da atividade propiciou elementos para a avaliação. Os questionários apresentaram 94% de respostas positivas ao uso do jogo, assim como sugestões em sua estrutura. Os mapas conceituais apontaram 60% de indícios de aprendizagem de Genética, e 60% dos alunos que responderam ao questionário disseram que o jogo auxiliou o aprendizado. Os professores participantes da pesquisa expressaram apoio ao jogo, salientando a possibilidade de ser utilizado na forma que se encontra ou ainda adaptado para as diferentes realidades encontradas em salas de aula. 161 f
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- 2013
25. LITTER CONTRIBUTION AND DECOMPOSITION AND ROOT BIOMASS PRODUCTION IN FORESTS AT DIFFERENT SUCESSIONAL STAGES IN PINHEIRAL, RJ
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Menezes, Carlos Eduardo Gabriel, Pereira, Marcos Gervasio, Correia, Maria Elizabeth Fernandes, Anjos, Lúcia Helena Cunha Dos, Paula, Ranieri Ribeiro, Souza, Manuel Euzébio De [UNESP], Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Universidade Federal Rural do Rio de Janeiro, Embrapa Agrobiologia, Universidade Federal de Viçosa, and Universidade Estadual Paulista (Unesp)
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serapilheira ,litter ,raízes ,nutrient cycling ,ciclagem de nutrientes ,root - Abstract
Made available in DSpace on 2021-07-14T10:34:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2010. Added 1 bitstream(s) on 2021-07-14T11:33:11Z : No. of bitstreams: 1 S1980-50982010000300439.pdf: 2987752 bytes, checksum: da247748d46e99a4097ae8822348e878 (MD5) Este estudo objetivou avaliar a deposição e decomposição da serapilheira e a produção de biomassa radicular de três fragmentos florestais em diferentes estágios sucessionais (avançado, médio e inicial) localizados no município de Pinheiral, RJ. Para interceptação da serapilheira instalaram-se em cada fragmento, dez coletores cônicos. Avaliou-se a biomassa radicular em dois períodos (chuvoso e seco), amostrando-se pelo método do monólito, em 0-10, 10-20 e 20-30 cm e dez repetições por profundidade. Não ocorreram diferenças na deposição de serapilheira entre as áreas, mas apenas uma tendência de aumento com a evolução sucessional. Não foram verificadas variações temporais de serapilheira entre as áreas mais jovens, inicial e médio no decorrer do ano, com tendência de aumento nos meses de julho e agosto. Em estágio avançado, o aporte da serapilheira pôde ser agrupado em dois períodos: “fevereiro a julho”, menores valores e “agosto a janeiro”, maiores valores. A deposição das frações folhas e material reprodutivo diminuíram, enquanto ramos e outros aumentaram com o avançar sucessional. A decomposição da serapilheira mostrou em estágio sucessional médio a menor constante k (0,0038 g.g-1.dia-1) e maior tempo de meia vida (182 dias), seguida por inicial (0,044 g.g-1.dia-1 e 154 dias) e avançado (0,0064 g.g-1.dia-1 e 108 dias). A biomassa radicular nas diferentes áreas e profundidades, no período seco e chuvoso, apresentou maiores valores em estágio avançado, intermediários em médio e menores em inicial. As diferenças sazonais da biomassa radicular ocorreram sobretudo em estágio médio, com maiores valores na coleta de junho. The aim of this study was to evaluate litter input and decomposition and root biomass of three forest fragments at different successional stages (advanced, medium and initial) in Pinheiral Municipality, in the state of RJ, Brazil. To evaluate litter input, 10 conic collectors were installed in each fragment. The root biomass was quantified by monolith method in two periods (wet and dry) at depths of 0-10, 10-20 and 20-30 cm, and 10 samples were collected in each area. To evaluate the decomposition rate in each area, 12 litter bags were distributed. No significant differences were observed for litter input between the areas, but there was a tendency to increase litter input with successional evolution. No significant differences were observed for seasonal litter input between areas during the year, but there was a small increase in the months of July and August. At the advanced stage, litter input could be grouped into two periods: February to July, with lower values; and August to January, with higher values. The leaf fractions and reproductive material input were reduced, while branch and other fractions increased with succession. For litter decomposition, the intermediate stage showed the lowest decomposition constant (k) (0.0038 g g -1day-1) and the highest half life time (182 days) , followed by the initial (0044 g g -1day-1 and 154 days) and advanced (0.0064 g g -1day-1 and 108 days) stages. The root biomass in different areas and depths for both two periods studied showed higher values in the advanced stage, followed by the intermediate stage and the lowest values were found in the initial stage. The seasonal root biomass difference occurred mainly in the intermediate stage, with higher values in June. Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro Universidade Federal Rural do Rio de Janeiro, Departamento de Solos Embrapa Agrobiologia Universidade Federal de Viçosa Universidade Estadual Paulista, Faculdade de Ciências Agronômicas Universidade Estadual Paulista, Faculdade de Ciências Agronômicas
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- 2010
26. Fósforo remanescente em solos formados sob diferentes materiais de origem em três topossequências, Pinheiral- RJ
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Adailde Carmo dos Santos, Lúcia Helena Cunha dos Anjos, Marcos Gervasio Pereira, Francisco José Martins Peinado, Carlos Fernando Dorronsoro Fernández, Ademir Fontana, Thiago Andrade Bernini, ADEMIR FONTANA, CNPS, Marcos Gervasio Pereira, UFRRJ, Adailde Carmo dos Santos, Ciência e Tecnologia da Bahia, Thiago Andrade Bernini, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Lúcia Helena Cunha dos Anjos, UFRRJ, Carlos Fernando Dorronsoro Fernández, Química Agrícola- Facultad de Ciencias, Universidad de Granada, and Francisco José Martins Peinado, Deptº de Edafología y Química Agrícola- Facultad de Ciencias, Universidad de Granada.
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chemistry.chemical_compound ,Horizontes superficiais e subsuperficiais ,chemistry ,Phosphate adsorption ,Phosphorus ,Adsorção de fosfato ,chemistry.chemical_element ,Mineralogy ,Ammonium oxalate ,General Agricultural and Biological Sciences ,Atributos dos solos ,Nuclear chemistry - Abstract
Este trabalho teve o objetivo de avaliar os teores do fósforo remanescente e correlacioná-los com os materiais de origem em três topossequências no município de Pinheiral, RJ. Foram descritos e coletadas amostras de horizontes superficiais (A) e subsuperficiais (B+C) de 14 perfis de solos sob pastagem em três topossequências (T1, T2 e T3), sendo T1 sob basalto, T2 sob muscovita-biotita-gnaisse e T3 sob gabro. Foram realizadas as análises químicas e físicas de rotina, bem como Al e Fe pelo ataque sulfúrico e fluorescência de raios X, Fed (ditionito-citrato-bicarbonato de sódio) e Feo (oxalato ácido de amônio), superfície específica da argila (SE), mineralogia da argila e óxido, e fósforo remanescente (Prem). Variações dos teores de Prem foram observadas, as quais relacionadas à natureza do material de origem, posição na paisagem e grau de desenvolvimento dos solos, o que pode ser analisado pelas variações dos atributos químicos, físicos e mineralógicos. Os teores de Prem seguiram a ordem T2 > T1 = T3 no horizonte A e da T1 > T3 e T2 ~ T1 e T3 nos horizontes B+C. Foram observadas correlações negativas entre os teores de Prem com Fe2O3 (raios X) > Fed > SE > Feo nos horizontes A e com Fe2O3 (ataque sulfúrico) > Fe2O3 (raios X) > argila > Fed > Feo nos horizontes B+C. As análises de componentes principais e agrupamento hierárquico contribuíram para avaliação conjunta dos dados, evidenciando os atributos relacionados e as similaridades entre os solos. Made available in DSpace on 2020-10-03T09:11:15Z (GMT). No. of bitstreams: 1 fosforo-remanescente.pdf: 449560 bytes, checksum: 1df685850006d6d5511a67add95bb25b (MD5) Previous issue date: 2013
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- 2013
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27. Organic matter of surface horizons in topolito-sequences from an environment in Mar de Morros, Pinheiral, Rio de Janeiro, Brazil
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Adailde Carmo dos Santos, Thiago Andrade Bernini, Lúcia Helena Cunha dos Anjos, Ademir Fontana, Marcos Gervasio Pereira, ADEMIR FONTANA, CNPS, Marcos Gervasio Pereira, UFRRJ, Lúcia Helena Cunha dos Anjos, UFRRJ, Adailde Carmo dos Santos, Instituto Federal de Educação, Ciência e Tecnologia da Bahia, and Thiago Andrade Bernini, Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro.
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Pedogenesis ,Agriculture (General) ,Pedogênese ,Atributos edáficos ,Soil Science ,Horticulture ,lcsh:S1-972 ,S1-972 ,Solo ,Humic fractions ,Soil formation ,Edaphic attributes ,Carbono ,Frações húmicas ,lcsh:Agriculture (General) ,Agronomy and Crop Science - Abstract
O objetivo deste trabalho foi quantificar o carbono orgânico e as frações húmicas de horizontes superficiais de perfis de solo em três topolitossequências no ambiente de Mar de Morros, no município de Pinheiral, RJ. Foram selecionadas as topolitossequências: T1 (basalto), T2 (muscovita-biotita-gnaisse) e T3 (gabro). Os horizontes superficiais de 14 perfis de solo, sob cobertura de pastagem (T1 e T3) e pastagem mista não manejada e leguminosa (pasto sujo/capoeira) (T2), foram descritos e coletados para análises químicas, físicas e do teor de carbono nas frações húmicas. Os teores de carbono orgânico variaram de acordo com o material de origem e decrescem na seguinte ordem: T3 > T1 > T2. Os teores de carbono orgânico aumentam do topo para a várzea na T1, ocorrendo o inverso na T3 e sem um padrão definido na T2. A fração humina predominou em todos os perfis de solo das topolitossequências e foi seguida pela fração ácidos fúlvicos na T1 e de forma equitativa entre as frações ácidos fúlvicos e ácidos húmicos na T2 e T3. Considerando o ambiente similar em termos da vegetação original e o uso agrícola, as mudanças no carbono do solo e nas frações húmicas podem refletir as interações com os componentes minerais e processos pedogenéticos, influenciados pelo material de origem e o relevo. The aim of this study was to quantify the organic carbon and humic fractions of the surface horizons of soil profiles in three topolito-sequences from the Mar de Morros environment in the town of Pinheiral, in the state of Rio de Janeiro, Brazil. The topolito-sequences selected were: T1 (basalt), T2 (muscovite-biotite-gneiss), and T3 (gabbro). The surface horizons of 14 soil profiles under pasture (T1 and T3), and unmanaged mixed pasture and leguminous plants (shrub/vegetation) (T2), were marked out and collected for chemical and physical analysis, and evaluation of the carbon content of the humic fractions. The organic-carbon content varied according to the source material, decreasing in the order: T3 > T1 > T2. The organic-carbon content increased from the highest point to the lowlands in T1, with the opposite occurring in T3, and no definite pattern being seen in T2. The humin fraction predominated in all the topolito-sequence soil profiles, being followed by the fulvic acid fraction in T1, and by the fulvic and humic acid fractions equally in T2 and T3. Considering the environments as being similar in terms of original vegetation and agricultural use, changes in the carbon and humic fractions of the soil may reflect interactions with mineral components and pedogenic processes, influenced by the original material and the landscape.
28. Digital cognitive training for functionality in mild cognitive impairment: a randomized controlled clinical trial.
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Carvalho CM, Poltronieri BC, Reuwsaat K, Reis MEA, and Panizzutti R
- Abstract
Digital cognitive training may improve cognition in people with mild cognitive impairment (MCI); however, the effect on functionality remains poorly defined. The Canadian Occupational Performance Measure (COPM) is a valid and consistent instrument for evaluating the performance of activities of daily living in this population. This study used the COPM to investigate the effects of digital cognitive training on functionality in individuals with MCI. We recruited participants aged 60 or older with MCI to a double-blinded, randomized, stepped wedge clinical trial of digital cognitive training compared to an active control group of commercial computer games. Participants were evaluated for functionality and cognition before and after 10 h of intervention. Ten hours of digital cognitive training improved functionality, measured by COPM performance, compared to the active control group. Learning over trials also improved significantly after 10 h of digital cognitive training, as compared to the active control group. Ten hours of digital cognitive training improved functionality in MCI. More sensitive tools, such as COPM, should be used to evaluate the effect of therapeutic interventions for functionality in MCI., Competing Interests: Declarations. Competing interests: Dr. Panizzutti is the founder of NeuroForma LTDA, a company with a financial interest in cognitive training. The remaining authors have no conflict of interest to disclose., (© 2025. The Author(s), under exclusive licence to American Aging Association.)
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- 2025
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29. Differential expression of peptidases in Strigomonas culicis wild-type and aposymbiotic strains: from proteomic data to proteolytic activity.
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Santos JFBD, Bombaça ACS, Vitório BDS, Dias-Lopes G, Garcia-Gomes ADS, Menna-Barreto RSF, d'Avila CM, and Ennes-Vidal V
- Subjects
- Trypanosomatina enzymology, Trypanosomatina genetics, Symbiosis, Proteolysis, Proteome, Proteomics, Peptide Hydrolases metabolism, Peptide Hydrolases genetics
- Abstract
Background: Strigomonas culicis is a monoxenic trypanosomatid parasite of insects that naturally contains an endosymbiotic bacterium. The aposymbiotic strain can be obtained, making this strain a model for evolutive research about organelle origins. In addition, S. culicis contains homologues of virulence factors of pathogenic trypanosomatids, which functions are waiting for further analysis. In this sense, the publication of S. culicis proteome makes feasible additional investigations regarding the differential expression of peptidases from the wild-type (WT) and the aposymbiotic (APO) strains., Objectives: Here, we analysed two proteomic data from S. culicis WT and APO strains screening for peptidases differentially expressed and assessed the differential expression of cysteine and metallopeptidases., Methods: A comparative proteomic screening between WT and APO identified 43 modulated peptidases., Findings: Cysteine and metallopeptidases, such as calpains and GP63, were the major classes, highlighting their significance. GP63 exhibited an increased proteolysis in a specific metallopeptidase substrate, an up-modulation gene expression in RT-PCR, and a higher protein identification by flow cytometry in the aposymbiotic strain. Notwithstanding, the wild-type strain showed enhanced cysteine peptidase activity., Main Conclusion: Our study highlighted the endosymbiont influence in S. culicis peptidase expression, with GP63 expression and activity raised in the aposymbiotic strain, whereas cysteine peptidase levels were reduced.
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- 2024
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30. Effects of bottom-up versus top-down digital cognitive training in older adults: A randomized controlled trial.
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Woodruff E, Poltronieri BC, Sousa LPA, de Oliveira YG, Reis MA, Scoriels L, and Panizzutti R
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- Humans, Male, Female, Aged, Cognitive Behavioral Therapy methods, Neuropsychological Tests, Aged, 80 and over, Cognitive Training, Cognitive Dysfunction therapy, Cognition physiology
- Abstract
Introduction: Impairments in bottom-up perceptual processing have been associated to the age-related cognitive decline. Digital cognitive training focusing on bottom-up and/or top-down processes have been studied as a tool to remediate age-related cognitive decline. However, the most effective training type and order of application remain unclear., Methods: One hundred and fifteen older adults were randomly assigned to 40 h of bottom-up then top-down or top-down then bottom-up digital cognitive training or an active control group. We evaluated cognition at baseline, after 20 h and 40 h of training and at follow-up using a mixed-model analysis., Results: Global cognition improved, for the top-down group, after 20 h of training (p = 0.04; d = 0.7) and for all three groups after 40 h. The improvement in global cognition remained five months after the bottom-up/ top-down training (p = 0.009; d = 4.0). There were also improvements in the recall cognitive domain, after 20 h of training, for the bottom-up group and, after 40 h, for all three groups. Gains were observed in verbal fluency after 40 h of training for both therapeutic groups. Processing speed was significantly slower, after 20 h of training, for the control and bottom-up groups and, after 40 h, only for the control group. Emotion recognition improved, after 20 h, for the control group as compared to the therapeutic groups., Conclusions: These results indicate that the bottom-up/top-down training has the most endurable effects, which reveals the importance of the order of application of the exercises for gains in cognition in older adults., Competing Interests: Declaration of competing interest This work was supported by the National Institutes of Health – Fogarty International Center (Grant R03TW009002 to RP); Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) (Grant E-26/110.305/2014 to RP) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (Grant 400455/2012-9 to RP). Posit Sciences provided the exercises of the intervention groups at no cost. The authors of the current manuscript, declare that the funding received from such agencies did not limit the ability to complete the investigation as planned and publish the results. They had full control of all primary data.We also declare that we have the data available so that Archives of Gerontology and Geriatrics can review it, if requested. R.P. is the founder of NeuroForma LTDA, a company with a financial interest in cognitive training. The remaining authors have no conflict of interest to disclose., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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31. Mobility assessment of potentially toxic elements contained in flotation and cyanidation tailings dam from gold mine located in Brazil.
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Castro DC, Anjos NOAD, Barcelos DA, Ferreira KK, Silva FANGD, Pontes FVM, Teixeira AMDS, and Castilhos ZC
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- Brazil, Metals, Heavy analysis, Environmental Monitoring methods, Mining, Gold chemistry
- Abstract
In Brazil, the recurring environmental impacts due to insufficient inspection and inadequate management of potentially toxic mining tailings have raised significant concerns. The study concentrates on examining the mobility of elements in flotation (ft) and cyanidation (ct) tailings from gold mining operations, following successive extractions. The influence of extractants on the release of elements from both ft and ct samples, including As, Cd, Cu, Cr, Pb, Se, and Zn, was examined and compared to the ABNT NBR 10004:2004 standard. The samples were obtained from a gold mining company in Brazil. Sequential extraction tests for ft and ct samples were conducted to simulate weathering effects, using solutions of 0.1 mol L-1 citric acid, 0.1 mol L-1 acetic acid, 0.1 mol L-1 oxalic acid, 0.1 mol L-1 ammonium acetate, and distilled water at pH 5.5. The results revealed that the established limits for Pb and Cd under the ABNT NBR 10004:2004 standard were exceeded in a 1:1 tailing-to-extractor ratio. In ct samples, both elements surpassed the standard limits for all extractors, except for Cd when using water. In ft samples, Pb exceeded the limits with all acids, while Cd exceeded the limits only in the presence of acetic acid and ammonium acetate.
- Published
- 2024
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32. Susceptibility of Leishmania amazonensis Axenic Amastigotes to the Calpain Inhibitor MDL28170.
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Oliveira SSC, Marinho FA, Sangenito LS, Seabra SH, Menna-Barreto RF, d'Avila CM, Santos ALS, and Branquinha MH
- Abstract
Leishmaniasis encompasses a group of neglected diseases caused by flagellated protozoa belonging to the Leishmania genus, associated with high morbidity and mortality. The search for compounds with anti- Leishmania activity that exhibit lower toxicity and can overcome the emergence of resistant strains remains a significant goal. In this context, the calpain inhibitor MDL28170 has previously demonstrated deleterious effects against promastigote forms of Leishmania amazonensis , which led us to investigate its role on axenic amastigote forms. The calpain inhibitor MDL28170 was able to decrease the viability of amastigotes in a typically dose-dependent manner. The treatment with the IC
50 dose (13.5 μM) for 72 h led to significant amastigote lysis and increased cell-to-cell aggregation. Ultrastructural analysis revealed several cellular alterations, including disruption of the trans -Golgi network and the formation of autophagosomes when treated with MDL28170 at ½ × IC50 dose. Additionally, mitochondrial swelling and the formation of concentric membranous structures inside the mitochondrion were observed after incubation with the IC50 dose. These results reinforce the potential application of the calpain inhibitor MDL28170 against L. amazonensis , highlighting its effectiveness and possible mechanism of action against the parasite.- Published
- 2024
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33. Evaluation of Ability of Inactivated Biomasses of Lacticaseibacillus rhamnosus and Saccharomyces cerevisiae to Adsorb Aflatoxin B 1 In Vitro.
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Pires RC, da Costa Calumby J, Rosim RE, Pires RD, Borowsky AM, Ali S, de Paiva EL, Silva R, Pimentel TC, da Cruz AG, de Oliveira CAF, and Corassin CH
- Abstract
Biological decontamination strategies using microorganisms to adsorb aflatoxins have shown promising results for reducing the dietary exposure to these contaminants. In this study, the ability of inactivated biomasses of Lacticaseibacillus rhamnosus (LRB) and Saccharomyces cerevisiae (SCB) incorporated alone or in combination into functional yogurts (FY) at 0.5-4.0% ( w / w ) to adsorb aflatoxin B
1 (AFB1 ) was evaluated in vitro. Higher adsorption percentages (86.9-91.2%) were observed in FY containing 1.0% LR + SC or 2.0% SC ( w / w ). The survival of mouse embryonic fibroblasts increased after exposure to yogurts containing LC + SC at 1.0-4.0% ( w / w ). No significant differences were noted in the physicochemical and sensory characteristics between aflatoxin-free FY and control yogurts (no biomass) after 30 days of storage. The incorporation of combined LRB and SCB into yogurts as vehicles for these inactivated biomasses is a promising alternative for reducing the exposure to dietary AFB1 . The results of this trial support further studies to develop practical applications aiming at the scalability of using the biomasses evaluated in functional foods to mitigate aflatoxin exposure.- Published
- 2024
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34. Isolation and Characterization of Plant-Growth-Promoting Bacteria Associated with Salvinia auriculata Aublet.
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Goulart JTSS, Quintanilha-Peixoto G, Esteves BDS, de Souza SA, Lopes PS, da Silva ND, Soares JR, Barroso LM, Suzuki MS, and Intorne AC
- Abstract
Salvinia auriculata Aublet is a floating aquatic plant, capable of absorbing the excess of nutrients and water contaminants and can be used in effluent treatment plants. The ability to survive in degraded areas may be related to the association with beneficial bacteria capable of promoting plant growth. However, little is known about the microbiota associated with this aquatic plant and its potential application to the aquatic environment. In this sense, this work aims to identify bacteria associated with S. auriculata that could be able to promote plant growth. Eighteen bacterial strains were identified by sequencing of the 16S rRNA gene, belonging to the genera Agrobacterium , Bacillus , Curtobacterium , Enterobacter , Pseudomonas , Siccibacter , and Stenotrophomonas . All isolates produced indole compounds, 12 fixed N
2 , and 16 solubilized phosphate. A new strain of Enterobacter (sp 3.1.3.0.X.18) was selected for inoculation into S. auriculata . For this purpose, 500 mL of nutrient solution and 1 g of the plant were used in the control and inoculated conditions. Enterobacter inoculation promoted a significant increase ( p ≤ 0.05) in fresh plant biomass (17%) after 4 days of cultivation. In summary, the present study characterized 18 plant-growth-promoting bacteria isolated from S. auriculata with potential for biotechnological application, such as the production of bioinoculants or biomass resources, to protect or improve plant growth under conditions of stress.- Published
- 2024
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35. Indirect victims of violence: a look at health impacts.
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Bueno RTO, Souza ER, and Poltronieri BC
- Subjects
- Humans, Brazil, Homicide psychology, Mental Health, Police, Interviews as Topic, Male, Female, Adult, Middle Aged, Aged, Qualitative Research, Family psychology, Grief, Violence psychology
- Abstract
We sought to investigate the perceptions of indirect victims or family members of homicide victims, about the repercussions of these deaths on their health. A qualitative, exploratory, descriptive study was carried out, based on eight semi-structured individual interviews with two groups: family members of police officers victimized by lethal violence, and family members of people killed as a result of police intervention, designated here as homicide. Both groups reported the perception that their health deteriorated after the homicide, and mentioned problems such as depression, panic disorder, insomnia, heart conditions and eating disorders. They also highlighted the acquisition of habits that are harmful to health, such as the consumption of alcoholic beverages, tobacco and self-medication, and the worsening of pre-existing health issues. It was observed that the homicide committed and suffered by police agents affects various aspects of the lives of indirect victims that are inseparable from health issues in a broader sense. These people are also victims of this violence, although their suffering is often made invisible. Studying this topic helps to give space to the suffering and mourning of these people and to subsidize the best performance of the institutions and services involved.
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- 2024
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36. Dereplication of 4-Quinolone Alkaloids from Waltheria Indica (Malvaceae) Tissues Using Molecular Network Tools.
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de Medeiros Silva R, de Castro Lima MM, and Cotinguiba F
- Subjects
- 4-Quinolones chemistry, 4-Quinolones pharmacology, 4-Quinolones isolation & purification, Chromatography, High Pressure Liquid, Plant Leaves chemistry, Plant Roots chemistry, Molecular Structure, Plant Extracts chemistry, Plant Extracts pharmacology, Plant Extracts isolation & purification, Tandem Mass Spectrometry, Alkaloids chemistry, Alkaloids isolation & purification, Alkaloids pharmacology
- Abstract
Waltheria indica (Malvaceae) is a plant popularly used in folk medicine by traditional African and indigenous communities, and in various countries worldwide, to treat general inflammation. Several biological activities of this plant have been reported, including acetylcholinesterase inhibition and potential anti-human immunodeficiency virus (HIV), antinociceptive, analgesic, antifungal, anticancer, anti-inflammatory, leishmanicidal, trypanocidal, antioxidant, and antibacterial activities. The chemical profile of Waltheria indica was assessed by dereplication analysis using UPLC-MS/MS, and data acquisition was performed using chemoinformatics tools, such as Mass Spectrometry-Data Independent AnaLysis (MS-DIAL) and MS-FINDER softwares. The preprocessed data were sent to the GNPS to build a feature-based molecular network (FBMN). Thirty-three 4-quinolone alkaloids were annotated in the extracts and fractions of stems and roots, whereas 12 were annotated in the extracts and fractions of flowers and leaves. This represents an inaugural chemical investigation study employing UPLC-Q-TOF-MS/MS analysis, along with a molecular network approach, within this species and genus., (© 2024 Wiley-VHCA AG, Zurich, Switzerland.)
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- 2024
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37. Enterotoxigenic Staphylococcus aureus in Brazilian artisanal cheeses: Occurrence, counts, phenotypic and genotypic profiles.
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Margalho LP, Graça JS, Kamimura BA, Lee SHI, Canales HDS, Chincha AIA, Caturla MYR, Brexó RP, Crucello A, Alvarenga VO, Cruz AG, Oliveira CAF, and Sant'Ana AS
- Subjects
- Animals, Staphylococcus aureus genetics, Brazil, Food Microbiology, Stainless Steel analysis, Enterotoxins genetics, Milk microbiology, Cheese microbiology, Methicillin-Resistant Staphylococcus aureus, Staphylococcal Infections
- Abstract
The present study aimed to assess the occurrence and counts of Staphylococcus aureus in Brazilian artisanal cheeses (BAC) produced in five regions of Brazil: Coalho and Manteiga (Northeast region); Colonial and Serrano (South); Caipira (Central-West); Marajó (North); and Minas Artisanal cheeses, from Araxá, Campos das Vertentes, Cerrado, Serro and Canastra microregions (Southeast). The resistance to chlorine-based sanitizers, ability to attach to stainless steel surfaces, and antibiogram profile of a large set of S. aureus strains (n = 585) were assessed. Further, a total of 42 isolates were evaluated for the presence of enterotoxigenic genes (sea, seb, sec, sed, see, seg, sei, sej, and ser) and submitted to typing using pulsed-field gel electrophoresis (PFGE). BAC presented high counts of S. aureus (3.4-6.4 log CFU/g), varying from 25 to 62.5%. From the S. aureus strains (n = 585) assessed, 16% could resist 200 ppm of sodium hypochlorite, whereas 87.6% produced strong ability to attach to stainless steel surfaces, corroborating with S. aureus ability to persist and spread in the environment. Furthermore, the relatively high frequency (80.5%) of multidrug-resistant S. aureus and the presence of enterotoxin genes in 92.6% of the strains is of utmost attention. It reveals the lurking threat of SFP that can survive when conditions are favorable. The presence of enterotoxigenic and antimicrobial-resistant strains of S. aureus in cheese constitutes a potential risk to public health. This result calls for better control of cheese contamination sources, and taking hygienic measures is necessary for food safety. More attention should be paid to animal welfare and hygiene practices in some dairy farms during manufacturing to enhance the microbiological quality of traditional cheese products., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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38. Evaluation of the design of the influenza-like illness sentinel surveillance system in Brazil.
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Freitas LP, Codeço CT, Bastos LS, Villela DAM, Cruz OG, Pacheco AG, Coelho FC, Lana RM, Carvalho LMF, Niquini RP, Almeida WAF, Silva DAD, Carvalho FC, and Gomes MFDC
- Subjects
- Humans, Brazil epidemiology, SARS-CoV-2, Pandemics, Sentinel Surveillance, Influenza, Human epidemiology, Influenza, Human diagnosis, COVID-19 epidemiology, COVID-19 diagnosis
- Abstract
The influenza-like illness (ILI) sentinel surveillance operates in Brazil to identify respiratory viruses of public health relevance circulating in the country and was first implemented in 2000. Recently, the COVID-19 pandemic reinforced the importance of early detection of the circulation of new viruses in Brazil. Therefore, an analysis of the design of the ILI sentinel surveillance is timely. To this end, we simulated a sentinel surveillance network, identifying the municipalities that would be part of the network according to the criteria defined in the design of the ILI sentinel surveillance and, based on data from tested cases of severe acute respiratory illness (SARI) from 2014 to 2019, we drew samples for each sentinel municipality per epidemiological week. The draw was performed 1,000 times, obtaining the median and 95% quantile interval (95%QI) of virus positivity by Federative Unit and epidemiological week. According to the ILI sentinel surveillance design criteria, sentinel units would be in 64 municipalities, distributed mainly in capitals and their metropolitan areas, recommending 690 weekly samples. The design showed good sensitivity (91.65% considering the 95%QI) for qualitatively detecting respiratory viruses, even those with low circulation. However, there was important uncertainty in the quantitative estimate of positivity, reaching at least 20% in 11.34% of estimates. The results presented here aim to assist in evaluating and updating the ILI sentinel surveillance design. Strategies to reduce uncertainty in positivity estimates need to be evaluated, as does the need for greater spatial coverage.
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- 2024
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39. Vulnerabilities mediating the Healthcare encounter: by an intersectional agency.
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Barbosa AC, Oliveira SS, and Oliveira RG
- Subjects
- Humans, Brazil, Female, Aged, Black People psychology, Poverty, Vulnerable Populations, National Health Programs organization & administration, Health Services Accessibility, Healthcare Disparities, Delivery of Health Care organization & administration, Health Personnel psychology, Health Personnel organization & administration
- Abstract
This essay elucidates the Healthcare and Intersectionality notions to prompt reflections on the interaction between healthcare professionals and individuals referred to as Nanás: elderly, poor, and Black women who represent a historically marginalized profile throughout Brazilian history. By delving into the arguments about the concept of Intersectionality and the multifaceted Care dimensions, it becomes apparent that there is a pressing need to broaden the perspective on women who access healthcare services, as they are inherently shaped by their life experiences. Moreover, it is imperative to acknowledge how the intersecting factors inherent in their profiles can influence the approach taken by those providing Care, which underscores the essentiality of an intersectional agency on the part of the agents involved in this encounter, namely the Nanás and healthcare workers, to effectively uphold the principles of comprehensiveness and equity within the Unified Health System (SUS).
- Published
- 2024
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40. Chemical composition and sensory profiling of coffees treated with asparaginase to decrease acrylamide formation during roasting.
- Author
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CarolinaVieira-Porto A, Cunha SC, Rosa EC, DePaula J, Cruz AG, Freitas-Silva O, Fernandes JO, and Farah A
- Subjects
- Humans, Volatile Organic Compounds analysis, Cooking methods, Alkaloids analysis, Chlorogenic Acid analysis, Caffeine analysis, Male, Food Handling methods, Maillard Reaction, Hot Temperature, Chromatography, High Pressure Liquid, Seeds chemistry, Female, Acrylamide analysis, Asparaginase, Asparagine analysis, Coffea chemistry, Coffee chemistry, Taste
- Abstract
Acrylamide is an amide formed in the Maillard reaction, with asparagine as the primary amino acid precursor. The intake of large amounts of acrylamide has induced genotoxic and carcinogenic effects in hormone-sensitive tissues of animals. The enzime asparaginase is one of the most effective methods for lowering the formation of acrylamide in foods such as potatoes. However, the reported sensory outcomes for coffee have been unsatisfactory so far. This study aimed to produce coffees with reduced levels of acrylamide by treating them with asparaginase while retaining their original sensory and bioactive profiles. Three raw samples of Coffea arabica, including two specialty coffees, and one of Coffea canephora were treated with 1000, 2000, and 3000 ASNU of the enzyme. Asparagine and bioactive compounds (chlorogenic acids-CGA, caffeine, and trigonelline) were quantified in raw and roasted beans by HPLC and LC-MS, while the determination of acrylamide and volatile organic compounds was performed in roasted beans by CG-MS. Soluble solids, titratable acidity, and pH were also determined. Professional cupping by Q-graders and consumer sensory tests were also conducted. Results were analyzed by ANOVA-Fisher, MFA, PCA and Cluster analyses, with significance levels set at p ≤ 0.05. Steam treatment alone decreased acrylamide content by 18.4%, on average, and 6.1% in medium roasted arabica and canefora coffees. Average reductions of 32.5-56.0% in acrylamide formation were observed in medium roasted arabica beans when 1000-3000 ASNU were applied. In the canefora sample, 59.4-60.7% reductions were observed. However, steam treatment primarily caused 17.1-26.7% reduction of total CGA and lactones in medium roasted arabica samples and 13.9-22.0% in canefora sample, while changes in trigonelline, caffeine, and other evaluated chemical parameters, including the volatile profiles were minimal. Increasing enzyme loads slightly elevated acidity. The only sensory changes observed by Q-graders and or consumers in treated samples were a modest increase in acidity when 3000 ASNU was used in the sample with lower acidity, loss of mild off-notes in control samples, and increased perception of sensory descriptors. The former was selected given the similarity in chemical outcomes among beans treated with 2000 and 3000 ASNU loads., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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41. A potent and selective activator of large-conductance Ca 2+ -activated K + channels induces preservation of mitochondrial function after hypoxia and reoxygenation by handling of calcium and transmembrane potential.
- Author
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de Souza IIA, da Silva Barenco T, Pavarino MEMF, Couto MT, de Resende GO, de Oliveira DF, Ponte CG, Nascimento JHM, and Maciel L
- Subjects
- Animals, Mice, Male, Large-Conductance Calcium-Activated Potassium Channels metabolism, Membrane Potential, Mitochondrial drug effects, Reactive Oxygen Species metabolism, Mice, Inbred C57BL, Hypoxia metabolism, Membrane Potentials drug effects, Oxygen Consumption drug effects, Oxygen metabolism, Calcium metabolism, Mitochondria, Heart metabolism, Mitochondria, Heart drug effects
- Abstract
Aims: Ischaemic heart disease remains a significant cause of mortality globally. A pharmacological agent that protects cardiac mitochondria against oxygen deprivation injuries is welcome in therapy against acute myocardial infarction. Here, we evaluate the effect of large-conductance Ca
2+ -activated K+ channels (BKCa) activator, Compound Z, in isolated mitochondria under hypoxia and reoxygenation., Methods: Mitochondria from mice hearts were obtained by differential centrifugation. The isolated mitochondria were incubated with a BKCa channel activator, Compound Z, and subjected to normoxia or hypoxia/reoxygenation. Mitochondrial function was evaluated by measurement of O2 consumption in the complexes I, II, and IV in the respiratory states 1, 2, 3, and by maximal uncoupled O2 uptake, ATP production, ROS production, transmembrane potential, and calcium retention capacity., Results: Incubation of isolated mitochondria with Compound Z under normoxia conditions reduced the mitochondrial functions and induced the production of a significant amount of ROS. However, under hypoxia/reoxygenation, the Compound Z prevented a profound reduction in mitochondrial functions, including reducing ROS production over the hypoxia/reoxygenation group. Furthermore, hypoxia/reoxygenation induced a large mitochondria depolarization, which Compound Z incubation prevented, but, even so, Compound Z created a small depolarization. The mitochondrial calcium uptake was prevented by the BKCa activator, extruding the mitochondrial calcium present before Compound Z incubation., Conclusion: The Compound Z acts as a mitochondrial BKCa channel activator and can protect mitochondria function against hypoxia/reoxygenation injury, by handling mitochondrial calcium and transmembrane potential., (© 2024 Scandinavian Physiological Society. Published by John Wiley & Sons Ltd.)- Published
- 2024
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42. Extracellular Vesicles from Scedosporium apiospermum Mycelial Cells: Implication for Fungal-Host Interplays.
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Aor AC, Sangenito LS, Mello TP, Joffe LS, Rizzo J, Veiga VF, da Silva RN, Pereira MD, Fonseca BB, Rozental S, Haido RMT, Rodrigues ML, Branquinha MH, and Santos ALS
- Abstract
The release of extracellular vesicles (EVs) has been implicated as an alternative transport mechanism for the passage of macromolecules through the fungal cell wall, a phenomenon widely reported in yeasts but poorly explored in mycelial cells. In the present work, we have purified and characterized the EVs released by mycelia of the emerging, opportunistic, widespread and multidrug-resistant filamentous fungus Scedosporium apiospermum . Transmission electron microscopy images and light scattering measurements revealed the fungal EVs, which were observed individually or grouped with heterogeneous morphology, size and electron density. The mean diameter of the EVs, evaluated by the light scattering technique, was 179.7 nm. Overall, the structural stability of S. apiospermum EVs was preserved during incubation under various storage conditions. The lipid, carbohydrate and protein contents were quantified, and the EVs' protein profile was evidenced by SDS-PAGE, revealing proteins with molecular masses ranging from 20 to 118 kDa. Through immunoblotting, ELISA and immunocytochemistry assays, antigenic molecules were evidenced in EVs using a polyclonal serum (called anti-secreted molecules) from a rabbit inoculated with conditioned cell-free supernatant obtained from S. apiospermum mycelial cells. By Western blotting, several antigenic proteins were identified. The ELISA assay confirmed that the anti-secreted molecules exhibited a positive reaction up to a serum dilution of 1:3200. Despite transporting immunogenic molecules, S. apiospermum EVs slightly induced an in vitro cytotoxicity effect after 48 h of contact with either macrophages or lung epithelial cells. Interestingly, the pretreatment of both mammalian cells with purified EVs significantly increased the association index with S. apiospermum conidia. Furthermore, EVs were highly toxic to Galleria mellonella , leading to larval death in a typically dose- and time-dependent manner. Collectively, the results represent the first report of detecting EVs in the S. apiospermum filamentous form, highlighting a possible implication in fungal pathogenesis.
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- 2024
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43. Antifungal potential of the new copper(II)-theophylline/1,10-phenanthroline complex against drug-resistant Candida species.
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Frota HF, Lorentino CMA, Barbosa PF, Ramos LS, Barcellos IC, Giovanini L, Souza LOP, Oliveira SSC, Abosede OO, Ogunlaja AS, Pereira MM, Branquinha MH, and Santos ALS
- Subjects
- Copper pharmacology, Theophylline pharmacology, Candida albicans, Drug Resistance, Fungal, Microbial Sensitivity Tests, Antifungal Agents pharmacology, Antifungal Agents chemistry, Candida, Phenanthrolines
- Abstract
Candida spp. are the commonest fungal pathogens worldwide. Antifungal resistance is a problem that has prompted the discovery of novel anti-Candida drugs. Herein, 25 compounds, some of them containing copper(II), cobalt(II) and manganese(II) ions, were initially evaluated for inhibiting the growth of reference strains of Candida albicans and Candida tropicalis. Eight (32%) of the compounds inhibited the proliferation of these yeasts, displaying minimum inhibitory concentrations (MICs) ranging from 31.25 to 250 μg/mL and minimum fungicidal concentration (MFCs) from 62.5 to 250 μg/mL. Drug-likeness/pharmacokinetic calculated by SwissADME indicated that the 8 selected compounds were suitable for use as topical drugs. The complex CTP, Cu(theo)
2 phen(H2 O).5H2 O (theo = theophylline; phen = 1,10-phenanthroline), was chosen for further testing against 10 medically relevant Candida species that were resistant to fluconazole/amphotericin B. CTP demonstrated a broad spectrum of action, inhibiting the growth of all 20 clinical fungal isolates, with MICs from 7.81 to 62.5 μg/mL and MFCs from 15.62 to 62.5 μg/mL. Conversely, CTP did not cause lysis in erythrocytes. The toxicity of CTP was evaluated in vivo using Galleria mellonella and Tenebrio molitor. CTP had no or low levels of toxicity at doses ranging from 31.25 to 250 μg/mL for 5 days. After 24 h of treatment, G. mellonella larvae exhibited high survival rates even when exposed to high doses of CTP (600 μg/mL), with the 50% cytotoxic concentration calculated as 776.2 μg/mL, generating selectivity indexes varying from 12.4 to 99.4 depending on each Candida species. These findings suggest that CTP could serve as a potential drug to treat infections caused by Candida species resistant to clinically available antifungals., (© 2023. The Author(s), under exclusive licence to Springer Nature B.V.)- Published
- 2024
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44. Manganese(II), copper(II) and silver(I) complexes containing 1,10-phenanthroline/1,10-phenanthroline-5,6-dione against Candida species.
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Gandra RM, Pacheco CA, Sangenito LS, Ramos LS, Souza LO, McCarron P, McCann M, Devereux M, Branquinha MH, and Santos AL
- Subjects
- Animals, Chlorocebus aethiops, Silver pharmacology, Manganese pharmacology, Vero Cells, Candida, Candida albicans, Microbial Sensitivity Tests, Drug Resistance, Fungal, Copper pharmacology, Antifungal Agents pharmacology, Antifungal Agents therapeutic use, Phenanthrolines
- Abstract
Background: New chemotherapeutics are urgently required to treat Candida infections caused by drug-resistant strains. Methods: The effects of 16 1,10-phenanthroline (phen)/1,10-phenanthroline-5,6-dione/dicarboxylate complexed with Mn(II), Cu(II) and Ag(I) were evaluated against ten different Candida species. Results: Proliferation of Candida albicans , Candida dubliniensis , Candida famata , Candida glabrata , Candida guilliermondii , Candida kefyr , Candida krusei , Candida lusitaniae , Candida parapsilosis and Candida tropicalis was inhibited by three of six Cu(II) (MICs 1.52-21.55 μM), three of three Ag(I) (MICs 0.11-12.74 μM) and seven of seven Mn(II) (MICs 0.40-38.06 μM) complexes. Among these [Mn
2 (oda)(phen)4 (H2 O)2 ][Mn2 (oda)(phen)4 (oda)2 ].4H2 O, where oda = octanedioic acid, exhibited effective growth inhibition (MICs 0.4-3.25 μM), favorable activity indexes, low toxicity against Vero cells and good/excellent selectivity indexes (46.88-375). Conclusion: [Mn2 (oda)(phen)4 (H2 O)2 ][Mn2 (oda)(phen)4 (oda)2 ].4H2 O represents a promising chemotherapeutic option for emerging, medically relevant and drug-resistant Candida species.- Published
- 2024
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45. Demonstrating Agreement between Radio and Fluorescence Measurements of the Depth of Maximum of Extensive Air Showers at the Pierre Auger Observatory.
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Abdul Halim A, Abreu P, Aglietta M, Allekotte I, Cheminant KA, Almela A, Aloisio R, Alvarez-Muñiz J, Yebra JA, Anastasi GA, Anchordoqui L, Andrada B, Andringa S, Anukriti, Apollonio L, Aramo C, Ferreira PRA, Arnone E, Velázquez JCA, Assis P, Avila G, Avocone E, Bakalova A, Barbato F, Mocellin AB, Bellido JA, Berat C, Bertaina ME, Bhatta G, Bianciotto M, Biermann PL, Binet V, Bismark K, Bister T, Biteau J, Blazek J, Bleve C, Blümer J, Boháčová M, Boncioli D, Bonifazi C, Arbeletche LB, Borodai N, Brack J, Orchera PGB, Briechle FL, Bueno A, Buitink S, Buscemi M, Büsken M, Bwembya A, Caballero-Mora KS, Cabana-Freire S, Caccianiga L, Caruso R, Castellina A, Catalani F, Cataldi G, Cazon L, Cerda M, Cermenati A, Chinellato JA, Chudoba J, Chytka L, Clay RW, Cerutti ACC, Colalillo R, Coleman A, Coluccia MR, Conceição R, Condorelli A, Consolati G, Conte M, Convenga F, Dos Santos DC, Costa PJ, Covault CE, Cristinziani M, Sanchez CSC, Dasso S, Daumiller K, Dawson BR, de Almeida RM, de Jesús J, de Jong SJ, Neto JRTM, De Mitri I, de Oliveira J, Franco DO, de Palma F, de Souza V, de Errico BPS, De Vito E, Del Popolo A, Deligny O, Denner N, Deval L, di Matteo A, Dobre M, Dobrigkeit C, D'Olivo JC, Mendes LMD, Dorosti Q, Dos Anjos JC, Dos Anjos RC, Ebr J, Ellwanger F, Emam M, Engel R, Epicoco I, Erdmann M, Etchegoyen A, Evoli C, Falcke H, Farmer J, Farrar G, Fauth AC, Fazzini N, Feldbusch F, Fenu F, Fernandes A, Fick B, Figueira JM, Filipčič A, Fitoussi T, Flaggs B, Fodran T, Fujii T, Fuster A, Galea C, Galelli C, García B, Gaudu C, Gemmeke H, Gesualdi F, Gherghel-Lascu A, Ghia PL, Giaccari U, Glombitza J, Gobbi F, Gollan F, Golup G, Berisso MG, Vitale PFG, Gongora JP, González JM, González N, Goos I, Góra D, Gorgi A, Gottowik M, Grubb TD, Guarino F, Guedes GP, Guido E, Gülzow L, Hahn S, Hamal P, Hampel MR, Hansen P, Harari D, Harvey VM, Haungs A, Hebbeker T, Hojvat C, Hörandel JR, Horvath P, Hrabovský M, Huege T, Insolia A, Isar PG, Janecek P, Jilek V, Johnsen JA, Jurysek J, Kampert KH, Keilhauer B, Khakurdikar A, Covilakam VVK, Klages HO, Kleifges M, Knapp F, Köhler J, Kunka N, Lago BL, Langner N, de Oliveira MAL, Lema-Capeans Y, Letessier-Selvon A, Lhenry-Yvon I, Lopes L, Lu L, Luce Q, Lundquist JP, Payeras AM, Majercakova M, Mandat D, Manning BC, Mantsch P, Marafico S, Mariani FM, Mariazzi AG, Mariş IC, Marsella G, Martello D, Martinelli S, Bravo OM, Martins MA, Mathes HJ, Matthews J, Matthiae G, Mayotte E, Mayotte S, Mazur PO, Medina-Tanco G, Meinert J, Melo D, Menshikov A, Merx C, Michal S, Micheletti MI, Miramonti L, Mollerach S, Montanet F, Morejon L, Morello C, Mulrey K, Mussa R, Namasaka WM, Negi S, Nellen L, Nguyen K, Nicora G, Niechciol M, Nitz D, Nosek D, Novotny V, Nožka L, Nucita A, Núñez LA, Oliveira C, Palatka M, Pallotta J, Panja S, Parente G, Paulsen T, Pawlowsky J, Pech M, Pękala J, Pelayo R, Pereira LAS, Martins EEP, Armand JP, Bertolli CP, Perrone L, Petrera S, Petrucci C, Pierog T, Pimenta M, Platino M, Pont B, Pothast M, Shahvar MP, Privitera P, Prouza M, Puyleart A, Querchfeld S, Rautenberg J, Ravignani D, Akim JVR, Reininghaus M, Ridky J, Riehn F, Risse M, Rizi V, de Carvalho WR, Rodriguez E, Rojo JR, Roncoroni MJ, Rossoni S, Roth M, Roulet E, Rovero AC, Ruehl P, Saftoiu A, Saharan M, Salamida F, Salazar H, Salina G, Gomez JDS, Sánchez F, Santos EM, Santos E, Sarazin F, Sarmento R, Sato R, Savina P, Schäfer CM, Scherini V, Schieler H, Schimassek M, Schimp M, Schmidt D, Scholten O, Schoorlemmer H, Schovánek P, Schröder FG, Schulte J, Schulz T, Sciutto SJ, Scornavacche M, Segreto A, Sehgal S, Shivashankara SU, Sigl G, Silli G, Sima O, Simkova K, Simon F, Smau R, Šmída R, Sommers P, Soriano JF, Squartini R, Stadelmaier M, Stanič S, Stasielak J, Stassi P, Strähnz S, Straub M, Suomijärvi T, Supanitsky AD, Svozilikova Z, Szadkowski Z, Tairli F, Tapia A, Taricco C, Timmermans C, Tkachenko O, Tobiska P, Peixoto CJT, Tomé B, Torrès Z, Travaini A, Travnicek P, Trimarelli C, Tueros M, Unger M, Vaclavek L, Vacula M, Galicia JFV, Valore L, Varela E, Vásquez-Ramírez A, Veberič D, Ventura C, Quispe IDV, Verzi V, Vicha J, Vink J, Vorobiov S, Watanabe C, Watson AA, Weindl A, Wiencke L, Wilczyński H, Wittkowski D, Wundheiler B, Yue B, Yushkov A, Zapparrata O, Zas E, Zavrtanik D, and Zavrtanik M
- Abstract
We show, for the first time, radio measurements of the depth of shower maximum (X_{max}) of air showers induced by cosmic rays that are compared to measurements of the established fluorescence method at the same location. Using measurements at the Pierre Auger Observatory we show full compatibility between our radio and the previously published fluorescence dataset, and between a subset of air showers observed simultaneously with both radio and fluorescence techniques, a measurement setup unique to the Pierre Auger Observatory. Furthermore, we show radio X_{max} resolution as a function of energy and demonstrate the ability to make competitive high-resolution X_{max} measurements with even a sparse radio array. With this, we show that the radio technique is capable of cosmic-ray mass composition studies, both at Auger and at other experiments.
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- 2024
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46. Translation and validation of the audiovisual version of the Montreal cognitive assessment in older adults in Brazil.
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Carvalho CM, de Andrade KR, Poltronieri BC, de Oliveira YG, Ferreira RG, Woodruff E, and Panizzutti R
- Subjects
- Humans, Aged, Brazil epidemiology, Reproducibility of Results, Mental Status and Dementia Tests, Neuropsychological Tests, Cognitive Dysfunction diagnosis, Cognitive Dysfunction epidemiology
- Abstract
Background: The use of a reliable remote cognitive screening test for older adults is crucial for the diagnosis of cognitive impairment. This study aimed to translate and validate the audiovisual Montreal Cognitive Assessment (MoCA)for older adults in Brazil., Methods: One hundred and fourteen older adults were recruited from the community and demographic, functional, mood, and cognitive data were collected. Participants were classified into two groups: cognitively healthy or mild cognitive impairment (MCI). Statistical analyses were performed in order to assess the validity of the test and the cutoff score., Results: The psychometric properties of the audiovisual MoCA showed good convergent validity. The audiovisual MoCA was represented as a unifactorial adjusted model, the composite reliability value was acceptable and a cutoff point of ≥23 reached adequate sensitivity and specificity at 0.77 and 0.92, respectively., Conclusions: The translated audiovisual MoCA is a valid and reliable cognitive screening test that can be administered remotely in older adults in Brazil. The test demonstrated a great ability to discriminate older adults with MCI from cognitively healthy adults. Future studies should focus on validating the audiovisual MoCA using other target population groups in order to expand the use of this remote screening test., (© 2023. The Author(s).)
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- 2024
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47. Impact of animal origin of milk, processing technology, type of product, and price on the Boursin cheese choice process: Insights of a discrete choice experiment and eye tracking.
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Tavares-Filho ER, Hidalgo LGS, Lima LM, Spers EE, Pimentel TC, Esmerino EA, and Cruz AG
- Subjects
- Animals, Cattle, Female, Humans, Bison, Buffaloes, Eye-Tracking Technology, Goats, Lactose, Milk, Cheese, South American People, Consumer Behavior
- Abstract
Boursin is a versatile semisoft cheese that can be made with different types of milk. While widely distributed in the European and North American markets, Boursin is produced to a limited extent in Brazil despite its commercial potential. This scenario encourages consumer-oriented product development studies by facilitating data collection with less bias and fewer product preconceptions, thus favoring the investigation of technological aspects of commercial interest. This study evaluates Brazilians' perceptions regarding different versions of Boursin cheese, with the aim of gaining a better understanding of the factors related to choosing cheese. Four attributes related to cheese production were evaluated at three different levels using two discrete choice experiments: one with eye tracking (n = 20) and another without (n = 312). These attributes included "type of processing" (evaluating pasteurization, ohmic heating, and preparation with raw milk), "animal origin of milk" (cow, goat, or buffalo milk), "type of product" (traditional, light, and lactose-free versions), and "price" (10.99, 13.99, and 16.99 BRL). Information regarding processing with ohmic heating did not affect the probability of Boursin being chosen, suggesting that consumers are open to using this emerging technology in Boursin cheese. However, information on being made with goat, buffalo, and raw milk negatively impacted the probability of choice, along with the price of 16.99 BRL. The frequency of cheese consumption and the level of health concerns also affected the probability of choosing the product. PRACTICAL APPLICATION: Identifying the relationship between extrinsic attributes presented on the Boursin cheese label and the consumer's choice process can aid the communication process with the target audience and reveal how some technological issues of interest to manufacturers are perceived. This study indicates how information regarding the animal origin of the milk (cow, goat, and buffalo), the type of processing (pasteurization, ohmic heating, and raw milk), the version of the product (traditional, light, and lactose-free), and the price affect the consumer choice process. The results provide insights that can be applied to product processing and designing labels., (© 2023 Institute of Food Technologists.)
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- 2024
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48. Influence of the cationic degree and molar mass of modified starches on their physicochemical properties and capability to enhance the oil recovery process.
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de Araujo LLGC, Dos S Cescon L, Da Cruz GF, and Nascimento RSV
- Abstract
Polysaccharides and their derivatives are used as additives in numerous petroleum industrial processes, especially in enhanced oil recovery (EOR). There exists however, a lack of studies concerning how their physicochemical properties affect the oil recovery process. This work presents an investigation of a series of 2-hydroxy-3-(trimethylammonium)propyl starches (HTPS) with different molar masses and cationic degrees that are potentially useful for EOR. It was investigated surface/interfacial tensions, rheological profile, emulsion index and wettability alteration. The results provide experimental evidence that the HTPS intrinsic properties affect the measured properties. The HTPS solution/oil interfacial tension (IFT) ranged from a low value of 19.0 to a high value of 34.0 mN/m and correlates positively with the molar mass of the HTPS. In contrast, the rheological behavior displays correlations with the molar mass and the degree of cationization. Furthermore, the 1 % HTPS solutions presented around 10 % of viscosity increase in comparison to brines typically used in waterflooding. The derivative with a higher molar mass and intermediate degree of cationization (HTPS 2) was more effective in changing the wetting condition of an aged limestone with a wettability alteration index (WAI) of 52 % while the commercial surfactant cetyltrimethylammonium bromide (CTAB) presented a WAI of 32.6 %., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
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- 2024
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49. Heavy metals and health risk assessment of Brazilian artisanal cheeses.
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Rocha LS, Ramos GLPA, Rocha RS, Braz BF, Santelli RE, Esmerino EA, Freitas MQ, Mársico ET, Bragotto APA, Quitério SL, and Cruz AG
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- Animals, Cattle, Brazil, Risk Assessment, Cheese, Metals, Heavy, Arsenic
- Abstract
Dairy products stand out as a food matrix susceptible to the contamination of heavy metals via cattle feed and environmental or processing conditions. Specifically, in the case of cheese, the concentrations can be further increased depending on the production process. The artisanal cheese market has been standing out, especially in Brazil, due to cultural and gastronomic reasons. Eight types of Brazilian artisanal cheese were analyzed for metal concentrations (chromium, copper, cadmium, lead, arsenic, and mercury, n = 80, 10 samples of each cheese) using inductively coupled plasma mass spectrometry. Based on the results, a health risk assessment was carried out, based on the determination of estimated daily intake, target hazard quotient (THQ), and hazard index (HI). Variable concentrations were observed between the types of cheese, but in all cases the THQ and HI values were less than 1, indicating an absence of potential risk in the consumption of artisanal cheeses in relation to the intake of heavy metals., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023. Published by Elsevier Ltd.)
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- 2023
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50. Volatile fingerprinting, sensory characterization, and consumer acceptance of pure and blended arabica coffee leaf teas.
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DePaula J, Cunha SC, Ferreira IMPLVO, Porto ACV, G Cruz A, Petrarca M, Tereza Trevisan M, Revi I, and Farah A
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- Tandem Mass Spectrometry, Health Promotion, Brazil, Tea, Coffea
- Abstract
Coffee leaves contain several bioactive compounds and have been traditionally consumed as a medicinal infusion in the East for centuries. Coffee production generates large amounts of leaves as by-products, which are often wasted in most producing countries because of the low acceptability in the West. Nevertheless, processing and blending coffee leaves may increase aroma and flavor complexity. This study evaluated the volatile and sensory profiles and consumer acceptance of coffee leaf teas compared to two among the most consumed teas (black and maté teas) in Rio de Janeiro. Infusions were made with one experimental and one commercial coffee leaf tea (CLT), two black teas (BT), and one toasted maté tea (TMT) for volatile (GC-MS/MS) and sensory profiles. As an attempt to improve coffee leaf tea acceptance, CLT were also blended (50%) with BT or TMT. Acceptance, Check All That Apply (CATA), and Projective Mapping sensory tests were performed with untrained assessors aged 18-49 (n = 100). Volatile data were standardized by centering and normalization. Sensory data were treated by ANOVA/Fisher test, PCA, and AHCMFA, considering differences at p < 0.05. Ninety-two volatile compounds distributed in 12 classes were identified in different samples. CLT, BT, and TMT infusions shared 19 compounds, including 9 potential impact compounds for aroma and flavor: α-ionone, β-ionone, hexanal, nonanal, decanal, benzaldehyde, trans-linalool oxide, linalool, and dihydroactinidiolide. The most cited flavor attributes for CLT infusions were herbs/green leaf, woody and refreshing. For TMT and BT, herbs/green leaf, woody, burnt, and fermented were the most cited. These attributes agreed with the volatile profiles. CLT shared 22 compounds with TMT and 28 with BT. Considering pure infusions, TMT presented the highest mean acceptance scores (6.7), followed by Com. and Exp. CLT (6.1 and 5.8, on a 9-point-hedonic scale, respectively). Blending with TMT increased mean acceptance of Exp. CLT (6.4), while blending with BT, downgraded the mean acceptance of Com. CLT (5.3). In Projective Mapping, CLT was considered to have a higher sensory resemblance with TMT than BT. If produced adequately, CLT was shown to have good market potential to support sustainable coffee production and promote health., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
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