35 research outputs found

    Optical characterization of europium-doped indium hydroxide nanocubes obtained by Microwave-Assisted Hydrothermal method

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    Crystalline europium-doped indium hydroxide (In(OH)3:Eu) nanostructures were prepared by rapid and efficient Microwave-Assisted Hydrothermal (MAH) method. Nanostructures were obtained at low temperature. FE-SEM images confirm that these samples are composed of 3D nanostructures. XRD, optical diffuse reflectance and photoluminescence (PL) measurements were used to characterize the products. Emission spectra of europium-doped indium hydroxide (IH:xEu) samples under excitation (350.7 nm) presented broad band emission regarding the indium hydroxide (IH) matrix and 5D0 → 7F0, 5D0 → 7F1, 5D0 → 7F2, 5D0 → 7F3 and 5D0 → 7F4 europium transitions at 582, 596, 618, 653 and 701 nm, respectively. Relative intensities of Eu3+ emissions increased as the concentration of this ion increased from 0, 1, 2, 4 and 8 mol %, of Eu3+, but the luminescence is drastically quenched for the IH matrix.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Universidade Federal do Rio Grande do Norte Centro de Tecnologia Departamento de Engenharia de MateriaisUniversidade Federal de São Paulo (UNIFESP)Universidade de São Paulo Instituto de Física de São CarlosUniversidade Estadual Paulista Instituto de Química Laboratório Interdisciplinar de Eletroquímica e CerâmicaUNIFESPFAPESP: 2013/07296-2SciEL

    Uso de jogos e redes sociais como estratégias de promoção de saúde para crianças e adolescentes: um relato de experiência de extensão universitária

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    The pandemic caused by the new coronavirus has had consequences in many areas. With the suspension of face-to-face classes, students and educators have been encouraged to develop better technological aptitude to optimize the use of distance communication media. Thus, academic institutions have prioritized the use of digital media to enable and supervise studies and projects. Therefore, the extension project entitled "Healthy Eating and Physical Activity Practice as a Health Prevention Strategy for Children and Adolescents", which aims to encourage the adoption of good eating habits and physical exercise in health promotion for public school students, has adapted the materials applied in previous face-to-face versions to the digital format. This paper aims to share the experience report of the conversion and innovation of the original proposal. Survey questionnaires were made on Google Forms; video recordings posted on YouTube; and posts on the social network Instagram. However, the big innovation was the creation of games on the Wordwall platform. As a result, there was a closer relationship between extensionists and the children, despite the distance in person, with a high degree of improvement in digital communication abilities. The extensionists went further into the technological universe, always reflecting on the children's performance. In this way, this process proved to be a true exercise for professional practice from a virtual perspective, generating more qualified, updated, and empathetic citizens.A pandemia provocada pelo novo coronavírus trouxe consequências para diversas áreas. Com a suspensão das aulas presenciais, alunos e educadores foram instados a desenvolver melhor aptidão tecnológica para otimizar o uso de meios de comunicação a distância. Assim, instituições de Ensino Superior aperfeiçoaram o uso de mídias digitais para fomentar e supervisionar estudos e projetos. Dessa forma, o projeto de extensão intitulado “Alimentação Saudável e Prática de Atividade Física como estratégia de Prevenção em Saúde de crianças e adolescentes”, que visa a incentivar a adoção de bons hábitos alimentares e do exercício físico na promoção da saúde de estudantes da rede pública, adaptou para o formato digital os materiais aplicados em versões presenciais anteriores. Este trabalho objetiva compartilhar o relato de experiência da conversão e inovação da proposta original. Foram feitos questionários de sondagem no Google Forms; gravação de vídeos postados no YouTube; e postagens na rede social Instagram. Entretanto, a grande inovação foi a criação de games na plataforma Wordwall. Como resultados, destaca-se o estreitamento dos vínculos entre extensionistas e o público-alvo, a despeito do distanciamento presencial, com elevado grau de aperfeiçoamento de habilidades de comunicação digital. Os extensionistas se aprofundaram mais no universo tecnológico, refletindo sempre no aproveitamento das crianças. Desse modo, esse processo mostrou-se um verdadeiro exercício para a prática profissional numa perspectiva virtual, formando cidadãos mais qualificados, atualizados e empáticos. Destaca-se o uso dos jogos e redes sociais como grandes aliados no processo de ensino-aprendizagem que poderão ser incorporados à ação presencial da extensão universitária

    Conflitos legais e impactos ambientais no município de Extremoz, RN, Nordeste do Brasil

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    O estudo objetivou analisar os conflitos legais em áreas protegidas e impactos ambientais no município de Extremoz-RN, localizado na zona costeira do nordeste brasileiro. Os procedimentos metodológicos envolveram a pesquisa bibliográfica, coleta de dados secundários, pesquisa de campo e elaboração cartográfica. Como impactos ambientais decorrentes das diversas formas de ocupação do solo pode-se citar o desmatamento e queima da vegetação ciliar, ocorrência de processos erosivos e assoreamento em corpos d’água e possível perda de biodiversidade pela extração de areia. Em relação aos conflitos ambientais legais, constatou-se que 11% das áreas protegidas estão ocupadas por atividades antrópicas

    Brazilian consensus on the treatment of fibromyalgia

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    UNIFESP Ambulatório de FibromialgiaUFPR HC ambulatório de fibromialgiaUNIFESPUNIFESP Setor de reumatismos de partes molesPUC-SP Departamento de MedicinaPUC-Campinas Hospital Universitário Serviço de ReumatologiaSociedade Brasileira de ReumatologiaSanta Casa de Belo Horizonte Ambulatório de Fibromialgia Programa de Residência Médica em ReumatologiaFMUSP HC Serviço de ReumatologiaSanta Casa de Campo Grande Setor de Reumatologia programa de Residência em Clínica MédicaUniversidade Federal de Ciências da Saúde de Porto AlegreUNiSULUniversidade Federal do Espírito Santo Hospital Universitário serviço de ReumatologiaSociedade Brasileira de Clínica MédicaSociedade Brasileira para o Estudo da DorAssociação Brasileira de Medicina Física e ReabilitaçãoUniversidade de São Paulo Faculdade de MedicinaUniversidade Federal FluminenseAcademia Brasileira de Neurologia Departamento de DorEuropean Neurological Society Subcomitê de DorPeripheral Nerve SocietyFMUSP Grupo de MãoSociedade Brasileira de ortopedia e TraumatologiaAxia.Bio farmacoeconomia e pesquisa em saúdeUNIFESP Núcleo de Gestão de PesquisasUNIFESP, Ambulatório de FibromialgiaUNIFESP, Setor de reumatismos de partes molesUNIFESP, Núcleo de Gestão de PesquisasSciEL

    Molecular epidemiological investigation of Mayaro virus in febrile patients from Goiania City, 2017-2018.

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    Mayaro virus (MAYV) has historically been associated with sylvatic transmission; however, urban outbreaks have been reported in Brazil, including cases of co-detection with dengue virus (DENV). Therefore, we performed a molecular survey to investigate MAYV circulation and cocirculation with DENV within Goiania, a major city in Central-West Brazil. Among 375 subjects with arbovirus-like symptoms, 259 were positive for DENV and 26 for MAYV. Of these, 17 were coinfected with DENV-2, suggesting co-transmission of the viruses. The most common complaints at the time of inclusion were myalgia, headache, fever, arthralgia, retro-orbital pain, and skin rash. No specific symptoms were associated with MAYV when either detected alone or co-detected with DENV, compared to that when DENV was detected alone. Most MAYV-infected subjects were women with no recent travel history to rural/sylvatic areas. Phylogenetic reconstruction indicated that the MAYV identified in this study is closely related with a lineage observed in Peru, belonging to genotype D. Our results corroborate the growing circulation of MAYV in urban environments in Brazil and reinforce the need to implement laboratory diagnosis in the Unified Health System, considering that the clinical manifestations of Mayaro fever are similar to those of other arboviruses, particularly dengue. Furthermore, most cases occurred in association with DENV-2. Further phylogenetic studies are needed to evaluate MAYV, which has not been widely examined

    Brazilian legislation on genetic heritage harms biodiversity convention goals and threatens basic biology research and education

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    The complete genome sequence of Chromobacterium violaceum reveals remarkable and exploitable bacterial adaptability

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    Chromobacterium violaceum is one of millions of species of free-living microorganisms that populate the soil and water in the extant areas of tropical biodiversity around the world. Its complete genome sequence reveals (i) extensive alternative pathways for energy generation, (ii) ≈500 ORFs for transport-related proteins, (iii) complex and extensive systems for stress adaptation and motility, and (iv) wide-spread utilization of quorum sensing for control of inducible systems, all of which underpin the versatility and adaptability of the organism. The genome also contains extensive but incomplete arrays of ORFs coding for proteins associated with mammalian pathogenicity, possibly involved in the occasional but often fatal cases of human C. violaceum infection. There is, in addition, a series of previously unknown but important enzymes and secondary metabolites including paraquat-inducible proteins, drug and heavy-metal-resistance proteins, multiple chitinases, and proteins for the detoxification of xenobiotics that may have biotechnological applications

    ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

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    Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ
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