949 resultados para Open book decompositions


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This paper focuses on the advantages of Open Access, (OA) particularly from the point of view of individual researchers, research centres and disciplines, and institutions. The advantage described by the phrase “OA advantage”, is multifaceted. The experience of Queensland University of Technology in Australia in pioneering OA as preferred practice in an institution with a growing research profile and energy, has seen evidence of the OA advantage develop in the experience of our researchers. The University has witnessed the development of practical evidence about improved recognition and impact, and this has occurred in the context of sector wide activity and policy where fresh approaches and leadership will result in even greater rewards for researchers whose outputs are “in the open”.

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Specialist scholarly books, including monographs, allow researchers to present their work, pose questions and to test and extend areas of theory through long-form writing. In spite of the fact that research communities all over the world value monographs and depend heavily on them as a requirement of tenure and promotion in many disciplines, sales of this kind of book are in free fall, with some estimates suggesting declines of as much as 90% over twenty years (Willinsky 2006). Cashstrapped monograph publishers have found themselves caught in a negative cycle of increasing prices and falling sales, with few resources left to support experimentation, business model innovation or engagement with digital technology and Open Access (OA). This chapter considers an important attempt to tackle failing markets for scholarly monographs, and to enable the wider adoption of OA licenses for book-length works: the 2012 – 2014 Knowledge Unlatched pilot. Knowledge Unlatched is a bold attempt to reconfigure the market for specialist scholarly books: moving it beyond the sale of ‘content’ towards a model that supports the services valued by scholarly and wider communities in the context of digital possibility. Its success has powerful implications for the way we understand copyright’s role in the creative industries, and the potential for established institutions and infrastructure to support the open and networked dynamics of a digital age.

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In her introduction to this edited collection, Christine Halse lays out the purpose of the book as being about addressing three questions for education in contemporary times: What does Asia literacy mean?; Why is it important?; and How might or ought schools do Asia literacy? As a literacy educator it was these three questions that led to my interest in first reading and then reviewing the book. On numerous occasions I’ve felt the expectation that an expertise in Asia literacy should be a part of my toolbox. And yet I’ve always considered Asia literacy to be the responsibility of those who profess to know about – or have some expertise in – history, politics, or studies of society. But here was an edited collection with chapters from a variety of scholars who have informed my work over many years, framing schooling as a noun that could be described qualitatively as more or less Asia literate. As such, I took on the challenge to open up to these ideas and to the opportunity to think again about literacy and the use of this term in pairings such as Asia literacy. I had my own question to add to those of the editor. Can, or even should, literacy be used to describe the skills, capacities and understandings required for citizens to “reflect and explore cultural differences in the Asian region” (Asia Literacy Teachers’ Association of Australia, n.d.) in ways that support engagement within and with Asian peoples and their cultures?

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This work seeks to address those questions and evaluate other international experiences and experiments designed to achieve the same ends. The book is based on a study of two particular cases where parliamentary bodies designed and implemented participatory digital processes, namely, the e-Democracy Program developed by the Brazilian House of Representatives, and the Virtual Senator Program developed by the Chilean Senate. The text unfolds in the form of a systematic analysis of institutional aspects embracing political and organizational elements as well as the social aspects associated to the application of digital democracy in parliaments. The investigation shows that at the stage they found themselves in 2010 those projects had only brought in very incipient results in regard to the aspects of enhancing representativity in decision making processes, aggregating collective intelligence to the legislative process or transparency to parliamentary performances, even though all of those are precious components of any democracy that deems itself to be participatory and deliberative. Nevertheless, such experiences have had the merit of contributing towards the gradual construction of more effective participatory mechanisms, complementary to the political representation system in place.

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This paper estimates a new measure of liquidity costs in a market driven by orders. It represents thecost of simultaneously buying and selling a given amount of shares, and it is given by a single measure of ex-ante liquidity that aggregates all available information in the limit order book for a given number of shares. The cost of liquidity is an increasing function relating bid-ask spreads with the amounts available for trading. This measure completely characterizes the cost of liquidity of any given asset. It does not suffer from the usual ambiguities related to either the bid-ask spread or depth when they are considered separately. On the contrary, with a single measure, we are able to capture all dimensions of liquidity costs on ex-ante basis.

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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.)