1,720,967 research outputs found
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
Assessment of the impact of local energy policies in reducing greenhouse gas emissions
No full textThe present work investigates the potential energy savings coming from a careful
and detailed local energy policy. The paper analyzes and assesses from technical,
economic and environmental viewpoints different initiatives in the energy sector
aimed at increasing energy efficiency in end-uses and reducing overall carbon
emissions. The results are based on energy planning for five Italian urban areas
sized at about fifty thousand inhabitants. The analysis has been developed with
the aim of reaching generally applicable criteria suitable for evaluating the local
energy policy contribution to the greenhouse gas (GHG) emissions reduction.
Several initiatives for the private and public sectors have been considered, such
as: (i) the introduction of combined heat and power generation based on useful
thermal demand, suitable for the industry and service sectors (swimming pools,
large distribution organizations); (ii) generation of electricity from renewables
(solar energy, biomass); (iii) thermal insulation of private and public buildings,
such as schools; (iv) introduction of micro-combined heat and power generation
in the residential sector. For each solution the primary energy reduction and the
consequent reduction in GHG emissions have been evaluated and a feasibility
analysis has been developed in order to assess the profitability of the investment.
Great attention has been paid to the public sector, which has an important role in
providing leadership and driving changes in other sectors; furthermore, a rational
use of energy combined with the exploitation of country-based incentives is able
to reduce the public administrative expenditure. The results show that local
energy policy can give an important contribution to gas emission reduction
targets, and underline the fundamental role of public sector initiatives
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
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
Optimal management of renewable and fossil fuel energy systems in a smart community
No full textThe present paper focuses on the energy aspects related to sustainable communities aimed at becoming smart. In particular, the paper discusses optimal strategies for the management of renewable energy systems (RES) and fossil fuel energy systems. Marche Region, one of the 21 Italian administrative divisions, has been taken as a reference case in order to compare different strategies. The area is characterized by a high percentage of electricity imported from the grid, suggesting the importance of increasing the local production to become sustainable. The year 2020 has been taken as the target year. An energy model of the area has been built considering RES potential and energy saving initiatives defined in the Regional Energy Master Plan. The model has been developed with EnergyPLAN, an optimization tool developed by Aalborg University and used to assess energy systems Three different solutions for the integration of RES and the minimization of fossil fuel consumption have been considered: i) a Demand Side Management technique related to the introduction of heat pumps seeking to use the excess of electricity derived from renewable production; ii) the use of micro-CHP systems in buildings to compensate for the variability of RES production; iii) the introduction of EVs with dump and smart charge. The best results come from HPs and EVs with smart charge, which are able to reduce the electricity in excess and minimize the primary energy consumption, in particular when a high share of intermittent renewable is introduced
Assessing the impact of micro-generation technologies on local sustainability
No full textThe work addresses the role of local energy planning for the introduction of low carbon policies to
achieve challenging climate targets. Taking as reference case an urban area that aims to become Sustainable
Community, several initiatives have been assessed. Two target years, 2020 and 2050, have been analysed
with the aid of EnergyPlan, an integrated energy system model based on the hourly energy demand
and supply able to consider constraints deriving from grid stability. The effects of climate change, defined
by a regional climate model, have been analysed in the long-term scenario. The work focuses on the
impact of a high share of micro-generation technologies for satisfying the energy demand of the building
sector, following an original comprehensive approach that helps a better understanding of the implication
of such low carbon policy. Both solar devices and micro-combined heat and power systems have
been taken into account, the latter covering different technologies (i.e. internal combustion engines, Stirling
engines, microturbines and fuel cells). Results show that the use of a high share of micro-generation
technologies can help to reduce CO2 emissions and enable an increase in large-scale intermittent renewable
production, only if a coordinated local energy plan combined with an optimal operation strategy is
pursued. Moreover the work outlines the importance of developing an integrated energy system for
introducing such technologies that can help to: (i) decarbonise the building sector, (ii) increase energy
security and iii) postpone the investments in new network capacit
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
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