84 resultados para OER


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Here, we demonstrate a green and environment-friendly pyrolysis route for the synthesis of metal-rich sulphide embedded in an N-doped carbon (NC) framework in the absence of sulphide ions (S2-). The metal-chelate complex (tris(ethylenediamine) metal(II) sulfate) serves as a new and single source precursor for the synthesis of earth abundant and non-precious hybrid structures such as metal-rich sulphides Co9S8@NC and Ni3S2@ NC when M-II = Co2+ and Ni2+ and counter sulphate (SO42-) ions are the source of S. Both the hybrids show superior OER activity as compared to commercial RuO2.

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Provides publishers of open educationalxresources (OERs) with a summary of when and how moral rights impact on the creation of OER. JLL

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"Im Zuge der weiteren Verbreitung der Social Media und der internetbasierten Lehre, gewinnen eLearning Inhalte immer mehr an Bedeutung. In den Kontext von eLearning und internetbasierter Lehre gehören auch Open Educational Resources (OER). OER sind digitale Lern- und Lehrmaterialien, die frei für Lehrende und Studierende zugänglich sind und auch frei verbreitet werden dürfen. [...] Um OER auszutauschen, zu finden, zu beschaffen und sie auf einer breiten Basis zugänglich zu machen, insbesondere auch über Suchmaschinen und dadurch verwenden zu können, werden für die jeweiligen Materialien Metadaten benötigt. [...] Um die Frage nach dem Handlungs- und Forschungsbedarf zum Thema Metadaten für Open Educational Resources zu untersuchen, wird zunächst ein Überblick über die momentan bestehenden nationalen und internationalen Metadatenstandards für eLearning Objekte gegeben. [...] Hieraus ergeben sich Empfehlungen, welche Metadaten-Standards für die weitere Nutzung und Förderung geeignet sein könnten. Es werden außerdem die Möglichkeiten der Erstellung eines neuen Metadaten-Standards sowie eines gemeinsamen Portals für OER erörtert. Hierbei wird vor allem auf die zu erwartenden Probleme und die damit verbundenen Anforderungen eingegangen." (DIPF/Orig.)

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We have a developed a multiple-radical model of the chemical modification reactions involving oxygen and thiols relevant to the interactions of ionizing radiations with DNA. The treatment is based on the Alper and Howard-Flanders equation but considers the case where more than one radical may be involved in the production of lesions in DNA. This model makes several predictions regarding the induction of double strand breaks in DNA by ionizing radiation and the role of sensitizers such as oxygen and protectors such as thiols which act at the chemical phase of radiation action via the involvement of free radicals. The model predicts a decreasing OER with increasing LET on the basis that as radical multiplicity increases so will the probability that, even under hypoxia, damage will be fixed and lead to lesion production. The model can be considered to provide an alternative hypothesis to those of 'interacting radicals' or of 'oxygen-in-the-track'.

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More Open Education Resources (OER) and learning environments are being created and starting to mature and there are a number of barriers to learning and creator participation. One often overlooked barrier that has been given less attention, especially within OERs, is user experience (UX). UX is the way a person feels about using a product, system or service. We are creatures with emotional needs and, in the rush to get great content open and available sometimes the usability, the wow factor and good design principles get left by the wayside. I will demonstrate ways to think about UX for your OER and learning environments and why this is an important factor in helping engage learners with our educational materials. ‘The real payoff comes when we can make that remarkability last. When we can make people continually feel our work is worthy of discussion. When—for weeks, months, maybe even years— the people who engage with our work continue to sing its praises to everybody they meet’– (Jared Spool in Walter, A. Designing for Emotion). Walter, A. (2011) Designing for Emotion, A Book Apart. http://www.abookapart.com/products/designing-for-emotion

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Abstract NGL 2015 Workshop Användning av OER och video i undervisning och lärande Sten Sundin Hållbus Totte Mattsson Open Educational Resources; OER, även kallat öppna lärresurser, är resurser som finns tillgängliga på Internet som kan användas fritt och i många fall också bearbetas fritt. Fördelarna med OER i allmänhet är att kunna återanvända andra personers expertkunskap och material. Många lärresurser håller en hög kvalitet och är även mycket pedagogiska. Detta förbättrar lärandet och innebär nya möjligheter i undervisningen som en lärare själv annars inte skulle kunnat åstadkomma, som t.ex. att själv göra tidskrävande videoinspelningar. Att undervisa med mer stöd av video, bilder och icketextbaserad information kan även gynna studenters olika lärstilar. Denna workshop syftar till att introducera användning av OER och video för lärare som inte är bekanta med OERbegreppet och som i större utsträckning önskar använda video i undervisningen. Under workshopen kommer deltagarna att arbeta i grupp med relevanta söktjänster för att hitta och undersöka användbara OER eller videoresurser. Länkar och anteckningar från sökningarna kommer att delas till övriga workshopdeltagare på en webbaserad samarbetsyta som kommer att vara tillgänglig även efter workshopen Plan för workshopen ● Introduktion. Fördelar med att använda OER och video i undervisning och lärande. (5 min) ● Min användning av lär och videoresurser idag (gruppdiskussion). Vad är mina tidigare erfarenheter inom området? Hur hittar jag lär och videoresurser för min undervisning? Beskriv hur din nuvarande situation ser ut (15 min) ● Presentation av OER och video i undervisning och varför detta är viktigt för lärare. Olika typer av OER, Creative Commonslicenser, samt hur man hittar OER och andra kostnadsfria lärresurser. Exempel på söktjänster, samt samlingar med OER och videoresurser som kan undersökas. Användning och redigering av YouTubevideos (10 min) ● Arbete i mindre grupper om 2-4 personer. Grupperna har tillgång till listor med passande sökverktyg för att hitta användbara OER och videoresurser. De resurser som har hittats sparas på en gemensam plats med webbverktyget Padlet (50 min) ● Sammanfattning. Alla resultat från sessionen kommer att finnas tillgängliga på en Padletyta som finns kvar efter workshopen så att deltagarna kan fortsätta att dela idéer och undersöka resurser som har hittats. (10 min) Målgrupp Lärare, bibliotekarier och andra utbildare som är intresserade av att öka sina kunskaper om frågor kring OER och video i undervisning och lärande

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In this paper, we describe the successful results of an international research project focused on the use of Web technology in the educational context. The article explains how this international project, funded by public organizations and developed over the last two academic years, focuses on the area of open educational resources (OER) and particularly the educational content of the OpenCourseWare (OCW) model. This initiative has been developed by a research group composed of researchers from three countries. The project was enabled by the Universidad Politécnica de Madrid OCW Office�s leadership of the Consortium of Latin American Universities and the distance education know-how of the Universidad Técnica Particular de Loja (UTPL, Ecuador). We give a full account of the project, methodology, main outcomes and validation. The project results have further consolidated the group, and increased the maturity of group members and networking with other groups in the area. The group is now participating in other research projects that continue the lines developed here

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A wealth of open educational resources (OER) focused on green topics is currently available through a variety of sources, including learning portals, digital repositories and web sites. However, in most cases these resources are not easily accessible and retrievable, while additional issues further complicate this issue. This paper presents an overview of a number of portals hosting OER, as well as a number of “green” thematic portals that provide access to green OER. It also discusses the case of a new collection that aims to support and populate existing green collections and learning portals respectively, providing information on aspects such as quality assurance/collection and curation policies, workflow and tools for both the content and metadata records that apply to the collection. Two case studies of the integration of this new collection to existing learning portals are also presented.

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Also appeared in Rimen en teltsjes.

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In Spring 2009, the School of Languages and Social Sciences (LSS) at Aston University responded to a JISC (Joint Information Systems Committee) and Higher Education Academy (HEA) call for partners in Open Educational Resources (OER) projects. This led to participation in not one, but two different OER projects from within one small School of the University. This paper will share, from this unusual position, the experience of our English tutors, who participated in the HumBox Project, led by Languages, Linguistics and Area Studies (LLAS) and will compare the approach taken with the Sociology partnership in the C-SAP OER Project , led by the Centre for Sociology, Anthropology and Politics (C-SAP). These two HEA Subject Centre-led projects have taken different approaches to the challenges of encouraging tutors to deposit teaching resources, as on ongoing process, for others to openly access, download and re-purpose. As the projects draw to a close, findings will be discussed, in relation to the JISC OER call, with an emphasis on examining the language and discourses from the two collaborations to see where there are shared issues and outcomes, or different subject specific concerns to consider.