650 research outputs found

    CARL JANSEN E O ENSINO DE PORTUGUÊS LÍNGUA ESTRANGEIRA

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    A busca por ampliar nosso entendimento sobre o ensino de línguas no Brasil e, mais especialmente, sobre ensino de Português Língua Estrangeira é contínua. Tendo esse fato como motivação e também a contribuição do imigrante alemão no cenário sócio-político-econômico brasileiro, a obra escrita por Carl Jansen – Neuestes praktish-theoretisches Lehrbuch der Portugiesischen Sprache – desperta interesse. Esta obra, cuja primeira edição data de 1863, tem caráter didático e é direcionada especialmente para aqueles que – apesar de terem o alemão como língua materna – têm interesse e/ou necessidade de aprender a língua portuguesa. Considerando a importância da obra e de seu autor para traçar a história do ensino da disciplina no Brasil, pretende-se, nesta primeira etapa da investigação, apresentar resultados oriundos da análise inicial dos conteúdos propostos na 12a. edição da obra citada, bem como dados que legitimem Carl Jansen – um imigrante alemão – como autor de uma obra para ensino de língua portuguesa. O estudo aqui proposto se fundamenta, portanto, nos princípios de uma pesquisa de caráter historiográfico, circunscrevendo-se no âmbito da Historiografia Linguística (HL) e mais especialmente naquele ramo descrito por Swiggers (1998) como historiografia do ensino de língua estrangeira. Por fim, dados preliminares sobre o autor informam que ele foi professor do Colégio Pedro II, revelando que ele tinha, portanto, conhecimento a respeito dos processos de aprendizagem de uma língua estrangeira. Além disso, por ser usuário da língua portuguesa como língua estrangeira, o autor revela preocupação em elaborar um manual que tivesse não apenas um caráter teórico, mas sobretudo um objetivo prático

    Organization of health services and tuberculosis care management

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    Este estudo teve como objetivo analisar a discursividade de gestores sobre a relação entre a organização dos serviços de saúde e a gestão do cuidado à tuberculose (TB) em um município da região metropolitana de João Pessoa/PB. Conduzido pela pesquisa qualitativa no campo analítico da Análise de Discurso de linha francesa, participaram 16 trabalhadores de saúde que atuavam como integrantes de equipes gestoras. Os depoimentos transcritos foram organizados com uso do software Atlas.ti versão 6.0. Após leitura minuciosa do material empírico procurou-se observar nos discursos os processos parafrásicos, polissêmicos e metafóricos, os quais possibilitaram a identificação da seguinte formação discursiva: organização dos serviços de saúde e a relação com a gestão do cuidado à TB; o plano e a prática. Nos discursos dos gestores evidencia-se a fragmentação das ações de controle da tuberculose, a falta de articulação entre os serviços e os setores, o cumprimento de atividades específicas à TB, bem como a falta de planejamento estratégico para gestão do cuidado da doença. Nesse sentido, para que a organização dos serviços de saúde seja efetiva, se faz necessário que a tuberculose seja prioridade na agenda da gestão e reconhecida como um problema social.The scope of this study was to analyze the discourse of managers regarding the relationship between the organization of the health services and tuberculosis care management in a city in the metropolitan region of Joao Pessoa, State of Pernambuco. Using qualitative research in the analytical field of the French line of Discourse Analysis, 16 health workers who worked as members of the management teams took part in the study. The transcribed testimonials were organized using Atlas.ti version 6.0 software. After detailed reading of the empirical material, an attempt was made to identify the paraphrasic, polyssemic and metaphoric processes in the discourses, which enabled identification of the following discourse formation: Organization of the health services and the relation with TB care management: theory and practice. In the discourse of the managers the fragmentation of the actions of control of tuberculosis, the lack of articulation between the services and sectors, the compliance of the specific activities for TB, as well as the lack of strategic planning for management of care of the disease are clearly revealed. In this respect, for the organization of the health services to be effective, it is necessary that tuberculosis be considered a priority and acknowledged as a social problem in the management agenda

    Pervasive gaps in Amazonian ecological research

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    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

    Clonal chromosomal mosaicism and loss of chromosome Y in elderly men increase vulnerability for SARS-CoV-2

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    The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) had an estimated overall case fatality ratio of 1.38% (pre-vaccination), being 53% higher in males and increasing exponentially with age. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, we found 133 cases (1.42%) with detectable clonal mosaicism for chromosome alterations (mCA) and 226 males (5.08%) with acquired loss of chromosome Y (LOY). Individuals with clonal mosaic events (mCA and/or LOY) showed a 54% increase in the risk of COVID-19 lethality. LOY is associated with transcriptomic biomarkers of immune dysfunction, pro-coagulation activity and cardiovascular risk. Interferon-induced genes involved in the initial immune response to SARS-CoV-2 are also down-regulated in LOY. Thus, mCA and LOY underlie at least part of the sex-biased severity and mortality of COVID-19 in aging patients. Given its potential therapeutic and prognostic relevance, evaluation of clonal mosaicism should be implemented as biomarker of COVID-19 severity in elderly people. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, individuals with clonal mosaic events (clonal mosaicism for chromosome alterations and/or loss of chromosome Y) showed an increased risk of COVID-19 lethality

    Mitochondrial physiology

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    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    Mitochondrial physiology

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    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

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    Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio
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