41 research outputs found

    ATAUDIW - Uma ferramenta de autoria para auxiliar o uso da lousa digital interativa

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    A utilização de recursos tecnológicos no ensino tem provocado mudanças positivas na elaboração de novas metodologias, a fim de melhorar o processo de ensino e aprendizado. Neste contexto, tecnologias como a Lousa Digital Interativa (LDI), que possibilita a utilização de conteúdos multimidiáticos, podem atuar facilitando o aprendizado, pois incorpora várias funcionalidades, como simulações, tutoriais didáticos, animações, entre outras. Porém a simples presença destes recursos tecnológicos, como é o caso da LDI no ambiente educacional não garante benefícios para o processo de aprendizado do aluno, levantando dúvidas se os recursos disponíveis são utilizados de maneira satisfatória. Sendo assim, se faz necessário refletir acerca de formas que possam possibilitar uma melhor utilização dos recursos da LDI. Ao longo desta pesquisa foi possível verificar que existem poucas ferramentas próprias para o contexto da LDI e muitas apresentam problemas de usabilidade e qualidade de conteúdo, o que pode, em muitos casos, inviabilizar o uso desta ferramenta no ambiente educacional. Sendo assim, uma forma de facilitar a elaboração de conteúdos para serem utilizados na LDI é por meio de Ferramentas de Autoria (FAs). Para verificar se a utilização de FAs promove um melhor uso da LDI foi desenvolvido, por meio desta pesquisa, uma FA para auxílio do uso da LDI, que possibilita a criação de atividades que otimiza o uso dos recursos disponibilizados pela LDI. Para avaliar o uso da ferramenta foram realizadas duas avaliações, uma com docentes para verificar a usabilidade da FA, e uma com os discentes que tencionava verificar a efetividade da FA no engajamento dos alunos. Após análise dos resultados das avaliações, notou-se que a FA pode facilitar a elaboração de atividades na LDI. Além disso foi possível verificar um maior engajamento por parte dos alunos, quando comparado com o modelo tradicional de ensino. Desse modo, a partir da pesquisa realizada foi possível constatar que empregar FAs para auxiliar na elaboração de atividades pode ser uma boa forma de proporcionar uma melhor utilização da LDI.Sociedad Argentina de Informática e Investigación Operativa (SADIO

    Prime Focus Spectrograph - Subaru's future -

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    The Prime Focus Spectrograph (PFS) of the Subaru Measurement of Images and Redshifts (SuMIRe) project has been endorsed by Japanese community as one of the main future instruments of the Subaru 8.2-meter telescope at Mauna Kea, Hawaii. This optical/near-infrared multi-fiber spectrograph targets cosmology with galaxy surveys, Galactic archaeology, and studies of galaxy/AGN evolution. Taking advantage of Subaru's wide field of view, which is further extended with the recently completed Wide Field Corrector, PFS will enable us to carry out multi-fiber spectroscopy of 2400 targets within 1.3 degree diameter. A microlens is attached at each fiber entrance for F-ratio transformation into a larger one so that difficulties of spectrograph design are eased. Fibers are accurately placed onto target positions by positioners, each of which consists of two stages of piezo-electric rotary motors, through iterations by using back-illuminated fiber position measurements with a wide-field metrology camera. Fibers then carry light to a set of four identical fast-Schmidt spectrographs with three color arms each: the wavelength ranges from 0.38 {\mu}m to 1.3 {\mu}m will be simultaneously observed with an average resolving power of 3000. Before and during the era of extremely large telescopes, PFS will provide the unique capability of obtaining spectra of 2400 cosmological/astrophysical targets simultaneously with an 8-10 meter class telescope. The PFS collaboration, led by IPMU, consists of USP/LNA in Brazil, Caltech/JPL, Princeton, & JHU in USA, LAM in France, ASIAA in Taiwan, and NAOJ/Subaru.Comment: 13 pages, 11 figures, submitted to "Ground-based and Airborne Instrumentation for Astronomy IV, Ian S. McLean, Suzanne K. Ramsay, Hideki Takami, Editors, Proc. SPIE 8446 (2012)

    Progress with the Prime Focus Spectrograph for the Subaru Telescope: a massively multiplexed optical and near-infrared fiber spectrograph

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    The Prime Focus Spectrograph (PFS) is an optical/near-infrared multi-fiber spectrograph with 2394 science fibers, which are distributed in 1.3 degree diameter field of view at Subaru 8.2-meter telescope. The simultaneous wide wavelength coverage from 0.38 um to 1.26 um, with the resolving power of 3000, strengthens its ability to target three main survey programs: cosmology, Galactic archaeology, and galaxy/AGN evolution. A medium resolution mode with resolving power of 5000 for 0.71 um to 0.89 um also will be available by simply exchanging dispersers. PFS takes the role for the spectroscopic part of the Subaru Measurement of Images and Redshifts project, while Hyper Suprime-Cam works on the imaging part. To transform the telescope plus WFC focal ratio, a 3-mm thick broad-band coated glass-molded microlens is glued to each fiber tip. A higher transmission fiber is selected for the longest part of cable system, while one with a better FRD performance is selected for the fiber-positioner and fiber-slit components, given the more frequent fiber movements and tightly curved structure. Each Fiber positioner consists of two stages of piezo-electric rotary motors. Its engineering model has been produced and tested. Fiber positioning will be performed iteratively by taking an image of artificially back-illuminated fibers with the Metrology camera located in the Cassegrain container. The camera is carefully designed so that fiber position measurements are unaffected by small amounts of high special-frequency inaccuracies in WFC lens surface shapes. Target light carried through the fiber system reaches one of four identical fast-Schmidt spectrograph modules, each with three arms. Prototype VPH gratings have been optically tested. CCD production is complete, with standard fully-depleted CCDs for red arms and more-challenging thinner fully-depleted CCDs with blue-optimized coating for blue arms.Comment: 14 pages, 12 figures, submitted to "Ground-based and Airborne Instrumentation for Astronomy V, Suzanne K. Ramsay, Ian S. McLean, Hideki Takami, Editors, Proc. SPIE 9147 (2014)

    Treatments for people who use anabolic androgenic steroids: a scoping review.

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    BACKGROUND: A growing body of evidence suggests that anabolic androgenic steroids (AAS) are used globally by a diverse population with varying motivations. Evidence has increased greatly in recent years to support understanding of this form of substance use and the associated health harms, but there remains little evidence regarding interventions to support cessation and treat the consequences of use. In this scoping review, we identify and describe what is known about interventions that aim to support and achieve cessation of AAS, and treat and prevent associated health problems. METHODS: A comprehensive search strategy was developed in four bibliographic databases, supported by an iterative citation searching process to identify eligible studies. Studies of any psychological or medical treatment interventions delivered in response to non-prescribed use of AAS or an associated harm in any setting were eligible. RESULTS: In total, 109 eligible studies were identified, which included case reports representing a diverse range of disciplines and sources. Studies predominantly focussed on treatments for harms associated with AAS use, with scant evidence on interventions to support cessation of AAS use or responding to dependence. The types of conditions requiring treatment included psychiatric, neuroendocrine, hepatic, kidney, cardiovascular, musculoskeletal and infectious. There was limited evidence of engagement with users or delivery of psychosocial interventions as part of treatment for any condition, and of harm reduction interventions initiated alongside, or following, treatment. Findings were limited throughout by the case report study designs and limited information was provided. CONCLUSION: This scoping review indicates that while a range of case reports describe treatments provided to AAS users, there is scarce evidence on treating dependence, managing withdrawal, or initiating behaviour change in users in any settings. Evidence is urgently required to support the development of effective services for users and of evidence-based guidance and interventions to respond to users in a range of healthcare settings. More consistent reporting in articles of whether engagement or assessment relating to AAS was initiated, and publication within broader health- or drug-related journals, will support development of the evidence base
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