42,164 research outputs found

    Creativity and exchange: convergences between the editing policies of Robert Filliou's Eternal Networkand internet art

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    © 2023. The authors. This document is made available under the CC-BY-NC-SA 4.0 license http://creativecommons.org/licenses/by-nc-sa/4.0 This document is the accepted version of a published work that appeared in final form in SOBRE. Revista de prácticas editoriales, arte y arquitecturaEn un momento en el que Internet se ha erigido como nuevo bastión de un consumismo ególatra y feroz, parece necesario volver a recurrir al arte como motor de cambio social. Si bien puede parecer difícil hablar del arte de Internet a partir de las filosofías de un artista que falleció antes de la implantación de la World Wide Web, el objetivo de esta investigación cualitativa es rescatar y dar visibilidad a las relaciones existentes y apenas teorizadas entre las políticas de edición artístico-espiritual defendidas por la Eternal Network de Robert Filliou y determinadas estrategias participativas desarrolladas en el seno del arte de Internet.----------------------------------------At a time when the Internet has emerged as the new bastion of egomaniacal consumerism, it seems necessary to turn again to art as an engine of social change. Although it may seem difficult to talk about Internet art based on the philosophies of an artist who died before the implementation of the World Wide Web, the aim of this qualitative research is to rescue and give visibility to the existing and barely theorized relations between the artistic-spiritual editing policies advocated by Robert Filliou's Eternal Network and certain participatory strategies developed within Internet art

    Civil helicopter design and operational requirement

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    Design and operational requirements and other factors that have a restraining influence on expansion of the helicopter market are discussed. The needs of operators, users, pilots and the community at large are examined. The impact of future technology developments and other trends such as use, energy shortages, and civil and military helicopter requirements and development is assessed. Areas where research and development are needed to provide opportunities for lowering life cycle costs and removing barriers to further expansion of the industry are analyzed

    Overview and Analysis of Practices with Open Educational Resources in Adult Education in Europe

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    OER4Adults aimed to provide an overview of Open Educational Practices in adult learning in Europe, identifying enablers and barriers to successful implementation of practices with OER. The project was conducted in 2012-2013 by a team from the Caledonian Academy, Glasgow Caledonian University, funded by The Institute for Prospective Technological Studies (IPTS). The project drew on data from four main sources: • OER4Adults inventory of over 150 OER initiatives relevant to adult learning in Europe • Responses from the leaders of 36 OER initiatives to a detailed SWOT survey • Responses from 89 lifelong learners and adult educators to a short poll • The Vision Papers on Open Education 2030: Lifelong Learning published by IPTS Interpretation was informed by interviews with OER and adult education experts, discussion at the IPTS Foresight Workshop on Open Education and Lifelong Learning 2030, and evaluation of the UKOER programme. Analysis revealed 6 tensions that drive developing practices around OER in adult learning as well 6 summary recommendations for the further development of such practices

    Cultural competency in the delivery of health services for Indigenous people

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    Aim and objectives This review aims to examine available evidence on cultural competence in health care settings to identify key approaches and strategies that can contribute to improving the development and implementation of Indigenous health services and programs. The objectives are to: 1. define cultural competency –– we consider the significance of cultural competence and how it has been defined in international and local literature, including the use of similar terms and meanings 2. report on the quantity, nature and quality of available evidence –– we look at available evidence on cultural competency in Australia, New Zealand, Canada and the United States, including how cultural competence has been measured, and assess the quality of the evidence against basic methodological criteria 3. identify approaches and strategies that are effective in improving cultural competency among health services staff 4. examine the relationship between cultural competency and health outcomes 5. develop an evidence-informed conceptual framework of cultural competency

    A preliminary energy analysis of a commercial chp fueled with h2ng blends chemically supercharged by renewable hydrogen and oxygen

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    Currently, Power-to-Gas technologies are considered viable solutions to face the onset problems associated with renewable capacity firming. Indeed, carbon-free hydrogen production converting renewable electricity excess and its injection into natural gas pipelines is considered a short- to medium-term solution. In this way, the so-called H2NG blends can be fired within internal combustion engines and micro gas turbines operating in CHP mode, offering better environmental-energy performances in machines. As regards the distributed energy generation scenario, the local H2 production by means of electrolysis for methane enrichment will be more cost-effective if the oxygen is fruitfully used instead of venting it out like a by-product, as usually occurs. This study focuses on the usefulness of using that oxygen to enrich the air-fuel mixture of an internal combustion engine for micro-CHP applications, once it has been fuelled with H2NG blends. Thus, the main aim of this paper is to provide a set of values for benchmarking, in which H2NG blends, ranging in 0%-15% vol., burn within an ICE in partial oxy-fuel conditions. In particular, a preliminary energy analysis was carried out based on experimental data, reporting the engine operating parameters, gains and losses in both electrical and heat recovery efficiency. The oxygen content in the air varies up to 22% vol. A Volkswagen Blue Tender CHP commercial version (19.8 kWel. of rated electrical power output) was considered as the reference machine and its energy characterization was reported when it operated under those unconventional conditions

    Utilitarian Welfare and Representation Guarantees of Approval-Based Multiwinner Rules

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    To choose a suitable multiwinner voting rule is a hard and ambiguous task. Depending on the context, it varies widely what constitutes the choice of an ``optimal'' subset of alternatives. In this paper, we provide a quantitative analysis of multiwinner voting rules using methods from the theory of approximation algorithms---we estimate how well multiwinner rules approximate two extreme objectives: a representation criterion defined via the Approval Chamberlin--Courant rule and a utilitarian criterion defined via Multiwinner Approval Voting. With both theoretical and experimental methods, we classify multiwinner rules in terms of their quantitative alignment with these two opposing objectives. Our results provide fundamental information about the nature of multiwinner rules and, in particular, about the necessary tradeoffs when choosing such a rule.Comment: This work is based on the short paper titled "A quantitative analysis of multi-winner rules" that appeared in the proceedings of the 28th International Joint Conference on Artificial Intelligence (IJCAI 2019

    Estimating the Benefits of Electric Vehicle Smart Charging at Non-Residential Locations: A Data-Driven Approach

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    In this paper, we use data collected from over 2000 non-residential electric vehicle supply equipments (EVSEs) located in Northern California for the year of 2013 to estimate the potential benefits of smart electric vehicle (EV) charging. We develop a smart charging framework to identify the benefits of non-residential EV charging to the load aggregators and the distribution grid. Using this extensive dataset, we aim to improve upon past studies focusing on the benefits of smart EV charging by relaxing the assumptions made in these studies regarding: (i) driving patterns, driver behavior and driver types; (ii) the scalability of a limited number of simulated vehicles to represent different load aggregation points in the power system with different customer characteristics; and (iii) the charging profile of EVs. First, we study the benefits of EV aggregations behind-the-meter, where a time-of-use pricing schema is used to understand the benefits to the owner when EV aggregations shift load from high cost periods to lower cost periods. For the year of 2013, we show a reduction of up to 24.8% in the monthly bill is possible. Then, following a similar aggregation strategy, we show that EV aggregations decrease their contribution to the system peak load by approximately 40% when charging is controlled within arrival and departure times. Our results also show that it could be expected to shift approximately 0.25kWh (~2.8%) of energy per non-residential EV charging session from peak periods (12PM-6PM) to off-peak periods (after 6PM) in Northern California for the year of 2013.Comment: Pre-print, under review at Applied Energ
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