537 research outputs found

    O GĂȘnero Encontros de Serviços como Ferramenta para o Ensino de LĂ­ngua Inglesa

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    Exchanges in Service Encounters usually relate to the negotiation of goods such as food, clothing, information, and other services. The social purpose of this oral genre is the solicitation and provision of goods or services, involving at least two interactants who engage in a dialogue. To engage in Service Encounters dialogue requires some knowledge of the general field of buying and selling in which the interactants are involved. Using this genre as a tool to teach English, therefore, can provide students with ways to acquire the English language in a contextualized and real way. The objectives of this paper are (i) to raise awareness of how texts of the Service Encounters genre is structured to achieve an effective communicative purpose and (ii) to demonstrate some of the key factors that affect the language used in its field. From these objectives, we indicate how the genre Service Encounters is usually presented in English language coursebooks and we discuss how the teaching of this genre can be done using the Teaching and Learning Cycle (TLC) used in Sydney School genre-based Pedagogy.As trocas em Encontros de Serviços estĂŁo normalmente relacionadas Ă  negociação de bens como alimentos, roupas, informaçÔes e outros serviços. A finalidade social desse gĂȘnero oral Ă© a solicitação e prestação de bens ou serviços, envolvendo pelo menos dois interagentes que se engajam em um diĂĄlogo. Para se engajar em um diĂĄlogo de Encontros de Serviços, Ă© necessĂĄrio algum conhecimento do campo geral de compra e de venda em que os interagentes estĂŁo envolvidos. Usar esse gĂȘnero como ferramenta para o ensino de lĂ­ngua inglesa, portanto, pode fornecer aos estudantes maneiras de adquirir o idioma de forma contextualizada e real. Adotando este gĂȘnero oral como foco, os objetivos deste trabalho sĂŁo: (i) despertar a consciĂȘncia sobre como o texto do gĂȘnero Encontros de Serviços Ă© estruturado para atingir um propĂłsito comunicativo eficaz e (ii) demonstrar alguns dos fatores-chave que afetam a linguagem usada em seu campo. A partir desses objetivos, indicamos como o gĂȘnero Encontros de Serviços Ă© geralmente apresentado nos livros didĂĄticos de lĂ­ngua inglesa e discutiremos como o ensino desse gĂȘnero pode ser feito utilizando o Ciclo de Ensino e Aprendizagem (CEA) utilizado na Pedagogia com base em gĂȘneros da Escola de Sydney.&nbsp

    Late dead space fraction (fDlate) before and after pulmonary embolectomy

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    This report presents data on the late dead space fraction (fDlate) of a patient submitted to surgical pulmonary embolectomy. Pulmonary thromboembolism (PTE) was diagnosed by echo-Doppler ultrasound of the lower limbs, lung scintigraphy, computerized helical tomography and angiography. The fDlate was calculated based on volumetric capnography as well as on arterial blood gases according to ERIKSSON et al. [1]. The preoperative fDlate value was 0.16, which was considered positive for the diagnosis of PTE, as it was higher than the cut-off point of 0.12. The postoperative fDlate value was - 0.04, which was below 0.12 and was characterized as negative. The agreement of fDlate with the imaging results confirms the validity of this new, noninvasive diagnostic tool.Este relato de caso apresenta os resultados da fDlate (fração tardia de espaço morto) em um paciente submetido a embolectomia por tromboembolismo pulmonar (TEP). O TEP foi diagnosticado por ultrassonografia ecodoppler de membros inferiores, cintilografia pulmonar, tomografia helicoidal computadorizada e arteriografia pulmonar. O cålculo da fDlate se baseou na capnografia volumétrica e na gasometria arterial de acordo com ERIKSSON et al. [1]. A fDlate pré-operatória foi de 0,16 e foi considerada positiva por estar acima do valor de corte de 0,12. A fDlate pós-operatória foi de - 0,04, um valor inferior ao valor de corte de 0,12 e foi caracterizada como negativa. A correlação da fDlate com os resultados de imagem confirma a validade desta nova ferramenta diagnóstica não-invasiva.818

    Mitigation of urban heat island effects by thermochromic asphalt pavement

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    Asphalt road pavements are usually dark and, consequently, have a low albedo. Therefore, they absorb energy as heat, increasing the Urban Heat Island (UHI) effect, which impacts the environment, energy consumption, and human health. Through the functionalization with thermochromic materials (TM), this work aims to develop a smart asphalt pavement able to change its surface color, increasing the reflectance, and thus mitigate this phenomenon. To achieve this goal, asphalt substrates were functionalized by a surface spray coating of a thermochromic solution (TS) containing aqueous solution of thermochromic microcapsules (thermocapsules), dye, and epoxy resin. To evaluate the functionalization features, Fourier Transform Infrared Spectroscopy (FTIR), and Thermal Differential test (TDT) with cyclic temperature variation were performed in the functionalized asphalt binder. Moreover, Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray Spectrometry (EDS), a Quick Ultraviolet Accelerated Weathering Test (QUV) with Colorimetry test, and an adaptation of the Accelerated Polishing Test (APT) were performed on the functionalized asphalt mixture. The results indicate that the functionalization of asphalt substrates with TS exhibits a reversible color-change ability, higher luminosity values when subjected to temperatures above 30 C, and wear resistance

    Pervasive gaps in Amazonian ecological research

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    A922 Sequential measurement of 1 hour creatinine clearance (1-CRCL) in critically ill patients at risk of acute kidney injury (AKI)

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    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

    Measurement and interpretation of same-sign W boson pair production in association with two jets in pp collisions at s = 13 TeV with the ATLAS detector

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    This paper presents the measurement of fducial and diferential cross sections for both the inclusive and electroweak production of a same-sign W-boson pair in association with two jets (W±W±jj) using 139 fb−1 of proton-proton collision data recorded at a centre-of-mass energy of √s = 13 TeV by the ATLAS detector at the Large Hadron Collider. The analysis is performed by selecting two same-charge leptons, electron or muon, and at least two jets with large invariant mass and a large rapidity diference. The measured fducial cross sections for electroweak and inclusive W±W±jj production are 2.92 ± 0.22 (stat.) ± 0.19 (syst.)fb and 3.38±0.22 (stat.)±0.19 (syst.)fb, respectively, in agreement with Standard Model predictions. The measurements are used to constrain anomalous quartic gauge couplings by extracting 95% confdence level intervals on dimension-8 operators. A search for doubly charged Higgs bosons H±± that are produced in vector-boson fusion processes and decay into a same-sign W boson pair is performed. The largest deviation from the Standard Model occurs for an H±± mass near 450 GeV, with a global signifcance of 2.5 standard deviations
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