Acordeão de concertos em Portugal : perceções e expectativas

Dissertação apresentada ao Instituto Politécnico de Castelo Branco para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Música.O presente estudo incide sobre perceções e expectativas relativamente ao acordeão de concerto em Portugal. Tem como principais objetivos (1) conhecer a origem e a evolução do acordeão enquanto instrumento musical; (2) conhecer a história do acordeão de concerto em Portugal; (3) coligir repertório português para acordeão de concerto; (4) descrever as duas obras a executar no recital de apresentação do trabalho de projeto, Suite n.º 1 “Imagens Pac-Chen”, de Paulo Jorge Ferreira, e Concerto para acordeão e orquestra, de Cristóvão Silva e (5) compreender até que ponto o acordeão de concerto está integrado no meio musical português. Os objetivos delineados justificam-se pelo facto de o investigador, um instrumentista de acordeão de concerto, se sentir motivado para aprofundar o conhecimento na sua área de estudo e de trabalho, para além de dar um contributo para o conhecimento e a afirmação deste instrumento musical em Portugal. Apresenta-se uma fundamentação teórica que incide sobre a origem e a evolução do acordeão, sobre a história do acordeão de concerto em Portugal e, ainda, sobre o repertório português para este instrumento. Descrevem-se e fundamentam-se as opções metodológicas subjacentes a este estudo, relevando o estudo de caso e o inquérito por entrevista. Os resultados apresentados fundamentam-se na análise do conteúdo de entrevistas feitas a oito compositores portugueses

Acordeão de concertos em Portugal : perceções e expectativas

Dissertação apresentada ao Instituto Politécnico de Castelo Branco para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Música.O presente estudo incide sobre perceções e expectativas relativamente ao acordeão de concerto em Portugal. Tem como principais objetivos (1) conhecer a origem e a evolução do acordeão enquanto instrumento musical; (2) conhecer a história do acordeão de concerto em Portugal; (3) coligir repertório português para acordeão de concerto; (4) descrever as duas obras a executar no recital de apresentação do trabalho de projeto, Suite n.º 1 “Imagens Pac-Chen”, de Paulo Jorge Ferreira, e Concerto para acordeão e orquestra, de Cristóvão Silva e (5) compreender até que ponto o acordeão de concerto está integrado no meio musical português. Os objetivos delineados justificam-se pelo facto de o investigador, um instrumentista de acordeão de concerto, se sentir motivado para aprofundar o conhecimento na sua área de estudo e de trabalho, para além de dar um contributo para o conhecimento e a afirmação deste instrumento musical em Portugal. Apresenta-se uma fundamentação teórica que incide sobre a origem e a evolução do acordeão, sobre a história do acordeão de concerto em Portugal e, ainda, sobre o repertório português para este instrumento. Descrevem-se e fundamentam-se as opções metodológicas subjacentes a este estudo, relevando o estudo de caso e o inquérito por entrevista. Os resultados apresentados fundamentam-se na análise do conteúdo de entrevistas feitas a oito compositores portugueses

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

estudos artísticos

A revista de estudos artísticos GAMA encontra, neste terceiro número, um caminho mais definido dentro do projeto global da comunicação de artistas sobre as obras de outros artistas. A Revista GAMA percorre tradições, registos, ações e intervenções artísticas, que assinalaram diversos momentos, com diferentes graus de difusão. Visa-se resgatar, recuperar a arte: é voltar a olhar, pelo escopo particular de um artista, a intervenção de um outro artista, com algum tempo de intervalo entre ambos. Este intervalo é um tempo de sedimentação, de filtragem, ou de recuperação de valores quase esquecidos. O tempo pode fornecer um ponto de vista privilegiado que permite novas interpretações, valorizações, interligações. Permite-se a reativação, o restauro: restauro não no sentido material, mas no sentido da reapresentação do conteúdo possibilitando reforçar um “museu imaginário,” livre de fronteiras e de hierarquias estabelecidas (Malraux). Os objetos de arte anteriores podem ter originado, ou vir a originar, novas obras, na sequência imprevisível dos discursos humanos mais significativos, reagrupando-se em termos de “ação” ou de “orientação,” de “imagem” ou de “palavra,” (Warburg) permitindo “restituir ao discurso o caráter de acontecimento” (Foucault). Entre a história e a memória, o arquivo e a deriva, a viagem e a identidade, a permanência e a resistência, a Revista GAMA vem assinalando um percurso de salvaguarda, de marcação de registos, de preservação de uma riqueza, ora material ora conceptual: a arte detém-se e debruça-se sobre as suas marcas, os seus projetos, os seus registos, as suas transições. Debruçamo-nos sobre os homens.info:eu-repo/semantics/publishedVersio

SARS-CoV-2 introductions and early dynamics of the epidemic in Portugal

Genomic surveillance of SARS-CoV-2 in Portugal was rapidly implemented by the National Institute of Health in the early stages of the COVID-19 epidemic, in collaboration with more than 50 laboratories distributed nationwide. Methods By applying recent phylodynamic models that allow integration of individual-based travel history, we reconstructed and characterized the spatio-temporal dynamics of SARSCoV-2 introductions and early dissemination in Portugal. Results We detected at least 277 independent SARS-CoV-2 introductions, mostly from European countries (namely the United Kingdom, Spain, France, Italy, and Switzerland), which were consistent with the countries with the highest connectivity with Portugal. Although most introductions were estimated to have occurred during early March 2020, it is likely that SARS-CoV-2 was silently circulating in Portugal throughout February, before the first cases were confirmed. Conclusions Here we conclude that the earlier implementation of measures could have minimized the number of introductions and subsequent virus expansion in Portugal. This study lays the foundation for genomic epidemiology of SARS-CoV-2 in Portugal, and highlights the need for systematic and geographically-representative genomic surveillance.We gratefully acknowledge to Sara Hill and Nuno Faria (University of Oxford) and Joshua Quick and Nick Loman (University of Birmingham) for kindly providing us with the initial sets of Artic Network primers for NGS; Rafael Mamede (MRamirez team, IMM, Lisbon) for developing and sharing a bioinformatics script for sequence curation (https://github.com/rfm-targa/BioinfUtils); Philippe Lemey (KU Leuven) for providing guidance on the implementation of the phylodynamic models; Joshua L. Cherry (National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health) for providing guidance with the subsampling strategies; and all authors, originating and submitting laboratories who have contributed genome data on GISAID (https://www.gisaid.org/) on which part of this research is based. The opinions expressed in this article are those of the authors and do not reflect the view of the National Institutes of Health, the Department of Health and Human Services, or the United States government. This study is co-funded by Fundação para a Ciência e Tecnologia and Agência de Investigação Clínica e Inovação Biomédica (234_596874175) on behalf of the Research 4 COVID-19 call. Some infrastructural resources used in this study come from the GenomePT project (POCI-01-0145-FEDER-022184), supported by COMPETE 2020 - Operational Programme for Competitiveness and Internationalisation (POCI), Lisboa Portugal Regional Operational Programme (Lisboa2020), Algarve Portugal Regional Operational Programme (CRESC Algarve2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF), and by Fundação para a Ciência e a Tecnologia (FCT).info:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

Use of green composites for manufacturing small boats in the Amazon: numerical and experimental evaluations

The Amazon has a great potential of natural resources. There is a wide diversity of plant specimens and many of them can be extracted and processed such as jute, sisal and mauve fibers. It is known that usualy small communities from Amazon build their boats using a rudimentary and ecologically incorrect method, which comes from brazilian natives. This method consists in cut of trees with large trunks, which are burned and scraped until they get the desired shape. This process is not viable due to the long time spent and also it is environmentally unacceptable nowadays. Considering these facts, it was created a project at UFPA aiming to evaluate the building viability of small boats adapted to the Amazon region. These boats have been made with composite material, polymeric resin reinforced with natural fiber fabric. Hence, this paper brings the first stage of this project, treating on the build of a small boat with reduced dimensions. This prototype was experimentally studied, using strain gages, and evaluated numerically by finite element method through the software ANSYS¨. This stage was very important to optimize the parameters used in the finite element model, which was employed to analyse the model with real dimensions. As a result, the numerical models showed a good compatibility with real tests. Additionally, the designed boat demonstrated to be able to hold the imposed loads