28 research outputs found

    Sobre o (des)uso de exercícios na técnica pianística

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    A inexistência de unanimidade entre os pianistas/pedagogos, em relação ao processo de aprendizagem da técnica pianística, foi desde sempre um ponto sensível no universo do piano. Se numa fase inicial da criação do instrumento a prática de exercícios era aprovada pela grande maioria, à medida que a didática foi evoluindo e o conhecimento do funcionamento anatómico foi sendo integrado, aumentaram também as discrepâncias sobre a sua aplicação. Este estudo incorpora o debate das principais ideias existentes sobre o assunto, distribuídas em duas partes: na primeira parte estão compreendidos os aspetos relacionados com as vertentes artística e pedagógica, e na segunda parte estão contidas as perspetivas anatómica e fisiológica. No corpo da pesquisa, com a apresentação dos diferentes argumentos, são também expostos alguns exercícios/sistemas técnicos menos conhecidos, e ainda comportamentos a adotar para a prevenção de lesões.The lack of consensus among pianists/teachers, regarding the process of learning piano technique, has always been a sensitive point in the piano universe. If at an early stage of the instrument creation the practice of exercises was approved by the great majority, as the didactic evolved and the anatomical knowledge was being integrated, the divergences on its application increased. This study incorporates the existing debate of the main ideas on the subject, divided into two parts: in the first part are included the aspects related to the artistic and pedagogical strands, and in the second part the anatomical and physiological perspectives. In the body of research, with the presentation of the different arguments, are also presented some less known exercises/technical systems, as well as measures to adopt in order to prevent injuries

    “Primavera de Piano – Portimão 2016” - Festival com mais de 60 pianistas e 16 horas de música

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    Relatório de Estágio para a obtenção do grau de Mestre em Ensino de MúsicaEste trabalho incide sobre a prática pedagógica desenvolvida no Conservatório de Música do Porto e o projeto de intervenção implementado na Escola Básica e Secundária da Bemposta. Procurou-se, para além da informação relevante, a elaboração de uma reflexão sobre a prática educativa e os respetivos processos de lecionação e aprendizagem envolvidos. Neste trabalho é possível encontrar informação relevante sobre as instituições que acolheram o autor para a realização do estágio e do projeto de intervenção, a organização da prática educativa supervisionada com as respetivas planificações, as caracterizações dos alunos, a descrição das aulas observadas e algumas reflexões sobre a referida prática. É também disponibilizada toda a informação sobre o projeto de intervenção Primavera de Piano – Portimão 2016 desde a sua conceção à realização. Neste projeto estavam inerentes os objetivos de desenvolvimento, nos alunos, de hábitos de audição de música erudita e de ida a concertos ao vivo, de sensibilização dos encarregados de educação para a participação nas atividades dos seus educandos e de motivação dos alunos para o estudo do instrumento. Adicionalmente, através da implementação de questionários durante e após a realização do evento, pretendeu obter-se informação que permitisse compreender a motivação dos alunos para a realização deste tipo de atividades, a frequência com que o fizeram, e se as mesmas lhes causaram algum impacto positivo para o seu futuro. De igual modo, perceber também qual a assiduidade dos encarregados de educação nas atividades desenvolvidas, qual a regularidade da população em concertos ao vivo e qual a sua perceção relativamente à atividade cultural circundante. Os resultados obtidos revelaram a pertinência e a relevância da implementação de um projeto desta natureza.This work focuses on the pedagogical practice developed at Conservatório de Música do Porto and on the intervention project at Escola Básica e Secundária da Bemposta. The intention is, aside from the relevant information, to present a reflection on the educational practice and the related teaching and learning processes. In this document it is possible to find relevant information about the organizations that welcomed the author to the apprenticeship and to the intervention project, the organization of the supervised educational practice and the related class planning, students’ profiles, observed class reports and some thoughts about the aforementioned practice. All the information about the intervention project Primavera de Piano – Portimão 2016 from its conception to its completion is also available. At the core of this project were purposes such as developing classical music listening habits in students and the importance of attending live concerts, the awareness of parents to participate in their children’s activities and students’ motivation to practice piano. Additionally, questionnaires performed during and after the completion of this event, aimed to understand students’ motivation and frequency of participation in this kind of activities, the impact of this intervention project in their future, parents’ attendance to the project’s activities and the population’s perception and participation on the local cultural activities. The results indicate the relevance of the implementation of a project like this

    Photography-based taxonomy is inadequate, unnecessary, and potentially harmful for biological sciences

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    The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; Nemésio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009; Cianferoni & Bartolozzi 2016; Amorim et al. 2016). This question was again raised in a letter supported by 35 signatories published in the journal Nature (Pape et al. 2016) on 15 September 2016. On 25 September 2016, the following rebuttal (strictly limited to 300 words as per the editorial rules of Nature) was submitted to Nature, which on 18 October 2016 refused to publish it. As we think this problem is a very important one for zoological taxonomy, this text is published here exactly as submitted to Nature, followed by the list of the 493 taxonomists and collection-based researchers who signed it in the short time span from 20 September to 6 October 2016

    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

    (Im)pertinências da educação: o trabalho educativo em pesquisa

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    O leitor encontrará neste livro o resultado de pesquisas científicas sobre temas que fundam a educação problematizam princípios e práticas atuais da educação escolarizada. Sem abandonar as antigas concepções de educação e também sem valorizar apenas as novidades teóricas, os autores apostam numa sólida união entre Psique e Eros, inspirada nas concepções de Freud. A obra abrange estudos sobre o lúdico na educação infantil, a ética, os afetos, o valor da fantasia na aprendizagem e no desenvolvimento emocional, a constituição profissional de docentes e pesquisadores, a orientação sexual e a educação escolar. Pertinências e impertinências da educação são consideradas na medida em que produzem e reproduzem valores humanos na construção de identidade pessoal e profissiona

    Identification of the cell targets important for propolis-induced cell death in Candida albicans

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    AbstractCandida albicans is the most common fungal pathogen of humans, forming both commensal and opportunistic pathogenic interactions, causing a variety of skin and soft tissue infections in healthy people. In immunocompromised patients C. albicans can result in invasive, systemic infections that are associated with a high incidence of mortality. Propolis is a complex mixture of several resinous substances which are collected from plants by bees. Here, we demonstrated the fungicidal activity of propolis against all three morphogenetic types of C. albicans and that propolis-induced cell death was mediated via metacaspase and Ras signaling. To identify genes that were involved in propolis tolerance, we screened ∼800 C. albicans homozygous deletion mutants for decreased tolerance to propolis. Fifty-one mutant strains were identified as being hypersensitive to propolis including seventeen genes involved in cell adhesion, biofilm formation, filamentous growth, phenotypic switching and pathogenesis (HST7, GIN4, VPS34, HOG1, ISW2, SUV3, MDS3, HDA2, KAR3, YHB1, NUP85, CDC10, MNN9, ACE2, FKH2, and SNF5). We validated these results by showing that propolis inhibited the transition from yeast-like to hyphal growth. Propolis was shown to contain compounds that conferred fluorescent properties to C. albicans cells. Moreover, we have shown that a topical pharmaceutical preparation, based upon propolis, was able to control C. albicans infections in a mouse model for vulvovaginal candidiasis. Our results strongly indicate that propolis could be used as a strategy for controlling candidiasis

    An iron-acquisition-deficient mutant of Corynebacterium pseudotuberculosis efficiently protects mice against challenge

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    International audienceCaseous lymphadenitis (CLA) is a chronic disease that affects sheep and goats worldwide, and its etiological agent is Corynebacterium pseudotuberculosis. Despite the economic losses caused by CLA, there is little information about the molecular mechanisms of bacterial pathogenesis, and current immune prophylaxis against infection has been unable to reduce the incidence of CLA in goats. Recently, 21 different mutant strains of C. pseudotuberculosis were identified by random mutagenesis. In this study, these previously generated mutants were used in mice vaccination trials to develop new immunogens against CLA. Based on this analysis, CZ171053, an iron-acquisition-deficient mutant strain, was selected. After challenge with a virulent strain, 80% of the animals that were immunized with the CZ171053 strain survived. Furthermore, this vaccination elicited both humoral and cellular responses. Intracellular survival of the bacterium was determined using murine J774 cells; in this assay, the CZ171053 had reduced intracellular viability. Because iron acquisition in intracellular bacteria is considered one of their most important virulence factors during infection, these results demonstrate the immunogenic potential of this mutant against CLA
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