898 research outputs found

    Educational analysis of language learning by computer-assisted using the web. The Appraisalweb project

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    En este trabajo se propone una metodología global de análisis pedagógico del Aprendizaje de Lenguas Asistido por Ordenador (ALAO) a través de la Web. Para ilustrar tal propuesta, se presenta un proyecto de Investigación y Desarrollo denominado APPRAISALWeb, llevado a cabo por investigadores de la Universidad Politécnica de Valencia. Su objetivo es el desarrollo y la puesta a disposición de la sociedad a través de la Web de una plataforma de recogida de datos y análisis pedagógico de cursos y recursos de ALAO basado en la Web. En primer lugar se presenta el Proyecto APPRAISALWeb en su contexto, incluyendo su relevancia en la investigación y sus objetivos. A continuación se explican las dos columnas en las que se fundamenta el proyecto, es decir, por una parte, la propuesta de un modelo teórico para el análisis pedagógico del ALAO, y, por otra parte, el desarrollo de una herramienta informática disponible en la Web para llevar a cabo dicho análisis en la práctica. Seguidamente, se incorporan ciertas aportaciones de la teoría de los Metadatos en los Objetos de Aprendizaje que pueden servir al análisis. Finalmente se extraen conclusiones sobre la viabilidad del proyecto y de la metodología propuesta, y se apuntan propuestas de investigación futuras en este proyecto.This study suggests a global methodology for the pedagogical analysis of Webbased Computer Assisted Language Learning (CALL). To illustrate such proposal, a Research & Development project called APPRAISALWeb and carried out by researchers at the Universidad Politécnica de Valencia is presented. Its objective is to develop a platform for the collection and pedagogical analysis of data from Webbased CALL courses and resources and make it available on the Web for the whole society. Firstly, the APPRAISALWeb Project is presented in context, including its research significance and objectives. Then, the two features on which the project is based are discussed, i.e., on the one hand, the suggestion of a theoretical model for the pedagogical analysis of CALL, and, on the other hand, the development of a computer tool available through the Web to carry out such analysis in practice. Next, some insights from research on Learning Objects Metadata Theory which can be of use in the analysis are incorporated. Finally, conclusions are drawn about the feasibility of the project and the proposed methodology, and some suggestions are made for future research work within the project

    An IFRS 2 and FASB 123 (R) Compatible Model for the Valuation of Employee Stock Options

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    In this paper, we show how employee stock options can be valued under the new reporting standards IFRS 2 and FASB 123 (revised) for share-based payments. Both standards require companies to expense employee stock options at fair value. We propose a new valuation model, referred to as Enhanced American model, that complies with the new standards and produces fair values often lower than those generated by traditional models such as the Black-Scholes model or the adjusted Black-Scholes model. We also provide a sensitivity analysis of model input parameters and analyze the impact of the parameters on the fair value of the option. The valuation of employee stock options requires an accurate estimation of the exercise behavior. We show how the exercise behavior can be modeled in a binomial tree and demonstrate the relevance of the input parameters in the calibration of the model to an estimated expected life of the optio

    The Bean Boutique: St. Louis, MO

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    Business Concept Mission: The Bean Boutique is a brand that offers good-willed consumers sustainably-sourced, ethically-made clothing and coffee with an engaging and homey store environment. Vision: Aiming to reduce the harmful impact of the fast fashion industry by putting the environment first, employing ethically and farming sustainably.https://griffinshare.fontbonne.edu/fas-494-2020/1002/thumbnail.jp

    Effect of rigid body motion in phase-field models of solid-state sintering

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    In the last two decades, many phase-field models for solid-state sintering have been published. Two groups of models have emerged, with and without the contribution of rigid body motion. This paper first describes the previously published phase-field model with an advection term driven by rigid body motion. The model is then used to investigate the differences between models with and without rigid body motion in new benchmark geometries exhibiting markedly different behavior. Sensitivity studies concerning the parameters of the rigid-body motion model are conducted and their effects on equilibrium and kinetic properties explored. In particular, it is shown by simulations that a shrinkage rate independent of system size requires the inclusion of an advection term. Finally, the reason behind this behavior is explored and implications for diffusion-only models are drawn

    English as a Foreign/Second Language in Secondary Education Materials and Links for Teaching and Learning

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    http://www.isabelperez.comSite at a glance Isabel's ESL site is an educational website that provides plenty of useful online materials for teachers and learners of ESL/EFL at secondary education level. It is addressed to both learners and teachers who can find here hundreds of resources, including interactive exercises, teaching ideas and various links of interest, together with papers and other academic materials to be disseminated among teaching practitioners. The site was first set up back in 1997 by Isabel Pérez Torres, an experienced CALL researcher and practitioner. Isabel herself maintains the site and frequently updates it

    Emergency and permanence of the Zika virus epidemic: an agenda connecting research and policy.

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    Submitted by Ana Beatriz Oliveira ([email protected]) on 2019-04-15T14:03:31Z No. of bitstreams: 1 Emergency and permanence of the Zika virus.pdf: 127208 bytes, checksum: 9f42e85e68cad6f3bb6b3fdea62abb95 (MD5)Approved for entry into archive by Ana Beatriz Oliveira ([email protected]) on 2019-04-16T13:34:46Z (GMT) No. of bitstreams: 1 Emergency and permanence of the Zika virus.pdf: 127208 bytes, checksum: 9f42e85e68cad6f3bb6b3fdea62abb95 (MD5)Made available in DSpace on 2019-04-16T13:34:46Z (GMT). No. of bitstreams: 1 Emergency and permanence of the Zika virus.pdf: 127208 bytes, checksum: 9f42e85e68cad6f3bb6b3fdea62abb95 (MD5) Previous issue date: 2018Horizonte 2020, o Programa-Quadro de Pesquisa e Inovação da União Européia, sob o acordo de subvenção da Rede Latino-Americana de Prontidão para Zika (ZikaPLAN) n. 734584 do Departamento para o Desenvolvimento Internacional do Reino Unido (DFID) e Wellcome Trust (206016 / Z / 16 / A). Conselho Nacional de Pesquisa (CNPq) e Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ); financiamento da produtividade em pesquisa para os alunos MCN Moreira e MEL Moreira.Fundação Oswaldo Cruz. Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz. Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira. Rio de Janeiro, RJ, Brasil.Universidade Federal de Pernambuco. Recife, PE, Brasil.Fundação Oswaldo Cruz. Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira. Rio de Janeiro, RJ, Brasil.Fundação Oswaldo Cruz​. Instituto Aggeu Magalhães. Recife, PE, Brasil.London School of Hygiene & Tropical Medicine. London, U.K

    Book review "Learning and Teaching in the Virtual World of Second Life"

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    Eds. Judith Molka-Danielsen and Mats DeutschmannLearning and Teaching in the Virtual World of Second LifePublished by Tapir Academic Presshttp://www.tapirforlag.no/forlag/englishTrondheim, 2009194 ppISBN: 978-82-519-2353-

    John's ESL Community - English Interactive

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    John's ESL Community - English Interactive is an interactive website with a double portal for students and teachers. It offers a wide range of learning and teaching resources, with over 350 activities for students, including quizzes, games and exercises of many kinds, as well as plenty of class resources for ESL teachers. It is claimed to be updated almost daily. There is the possibility of obtaining a free e-mail account. Content is sorted by communicative skills and linguistic topics. It was set up in 1995 by John Erskin. It makes wide use of JavaScript interactive resources. Its overall objective is to provide general linguistic practice at different levels of general English and in different formats. English is also the vehicular language for the whole site. Multimedia includes audio and graphics, but no video. Plug- ins, software and files in general are easy to access and download

    Book Review "Artificial Intelligence in Second Language Learning"

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    Dodigovic, Marina (2005)Artificial Intelligence in Second Language Learning. Raising Error Awareness.Second Language Acquisition series. Clevedon: Multilingual Matters Ltd. ISBN: 1-85359-829-1 (304 p.
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