1,720,983 research outputs found
Influence of new factors on global energy prospects in the medium term: comparison among the 2010, 2011 and 2012 editions of the IEA’s World Energy Outlook reports”
No full textSeveral economic, geopolitical, demographic and environmental factors drive world’s energy scenario; among them, the reduction of greenhouse gases emissions and the consequent development of renewable energy sources, the global financial crisis, the increase in global population and urbanization, the increase of fossil fuels prices have had a particularly strong impact in recent years. Furthermore, exceptional events, such as the accident at the Fukushima nuclear power plant in Japan, may occur to complicate World energy scenarios.
The most recent reports on world energy markets, especially the WEO - World Energy Outlook, are characterized by the introduction of new prospects and scenarios, as a result of unpredictable events such as Fukushima accident or of emerging factors, such as the increasing share of unconventional resources in the future energy mix (shale gas and shale oil) and the importance of energy efficiency, proposing an “Efficient World Scenario”. Disappointing signals about the development of renewables are also recorded.
The paper focuses on the comparison among the major reports and statistical energy data, especially the 2010, 2011 and 2012 editions of the World Energy Outlook issued by IEA. Mid-term energy scenarios are presented and discussed, with particular emphasis on the increasing importance of energy efficiency, on the new prospects concerning nuclear power and on the role of unconventional fossil fuels
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Sul contesto energetico mondiale
No full textThe paper focuses on the key drivers of World’s energy demand and on the current energy market (oil, gas, coal, nuclear and renewables).
In the first part, the paper analyses the key factors of the present and future energy market, with particular regard to economy, population, fuel prices and CO2 pricing.
World GDP (Gross Domestic Product) and population drive the energy profile. The global economy entered a downturn since 2007, therefore primary energy consumption decreased of 1,1% in 2009. World population will reach 9 billion of person by 2040. Despite the economy recover is uneven, global energy demand will be 30 percent higher in 2040 than 2010, driven by non–OECD countries. Energy prices (especially, oil and gas) and CO2 pricing (e.g. EU ETS, Carbon Tax, cape-and-trade schemes) affect fuel consumption and the investments in energy sector.
In the second part, the current energy situation is presented (estimated resources, production and consumption). At the moment, fossil fuels are still the dominant source of energy (81% of world primary supply in 2009). The role of nuclear in the power generation is affected by Fukushima accident in March 2011.
All presented data are taken from the most important energy reports, such as the ones issued by IEA (World Energy Outlook 2011), EIA (International Energy Outlook 2011), REN21 (Renewables Global Status Report 2011), Exxon Mobile (The Outlook for Energy, 2012); historical energy data are based on BP Statistical Review of World Energy 2012
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Sul contesto energetico mondiale
No full textThe paper focuses on the key drivers of World’s energy demand and on the current energy market (oil, gas, coal, nuclear and renewables).
In the first part, the paper analyses the key factors of the present and future energy market, with particular regard to economy, population, fuel prices and CO2 pricing.
World GDP (Gross Domestic Product) and population drive the energy profile. The global economy entered a downturn since 2007, therefore primary energy consumption decreased of 1,1% in 2009. World population will reach 9 billion of person by 2040. Despite the economy recover is uneven, global energy demand will be 30 percent higher in 2040 than 2010, driven by non–OECD countries. Energy prices (especially, oil and gas) and CO2 pricing (e.g. EU ETS, Carbon Tax, cape-and-trade schemes) affect fuel consumption and the investments in energy sector.
In the second part, the current energy situation is presented (estimated resources, production and consumption). At the moment, fossil fuels are still the dominant source of energy (81% of world primary supply in 2009). The role of nuclear in the power generation is affected by Fukushima accident in March 2011.
All presented data are taken from the most important energy reports, such as the ones issued by IEA (World Energy Outlook 2011), EIA (International Energy Outlook 2011), REN21 (Renewables Global Status Report 2011), Exxon Mobile (The Outlook for Energy, 2012); historical energy data are based on BP Statistical Review of World Energy 2012
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
