1,720,959 research outputs found
The role of air transportation in emissions through energy usage: Evidence from global data
No full textInvestigating the role that air transportation plays in regard to carbon emissions offers several valuable insights and contributions that are critical for addressing climate change and promoting sustainable development as far as climate mitigation, policy development and evaluation, technological innovation, public awareness engagement, international cooperation, and risk management and resilience are concerned. Such studies are of importance since aviation holds approximately 2% of global carbon dioxide emissions according to the Intergovernmental Panel on Climate Change (IPCC). Therefore, this study aims to search for the role of air transportation in pollutant emissions around the globe. A global data split by regions and income groups is constructed and evaluated through the autoregressive distributed lag (ARDL) methodology. Results reveal that means of air transportation generally exert statistically significant effects on carbon dioxide (CO2) emissions; however, the signs of coefficients of air transportation are in mixed directions across different regions and income groups. The study concludes that alternative air transport systems such as solar-powered aircraft and technological innovations should be seriously considered as a business strategy due to increasing pollutant emissions
The role of tourism in environmental pollution: evidence from Malta
No full textThis article searches the effects of tourism development onemission pollutants in Malta using (1) the autoregressivedistributed lag approach and (2) two datasets which are annualdata from 1971 to 2018 and quarterly data from 1990Q1 tı2018Q4 as per data availability. Findings confirm that tourism,energy usage, and carbon dioxide emissions are in a long-termequilibrium relationship; carbon emissions converge rapidlytowards the long-term equilibrium path through tourism andenergy consumption channels. Findings also reveal that growthin tourism results in significant changes in energy consumptionand, therefore, in CO2emissions. Tourism has positive effects oncarbon emissions in shorter periods. Still, these effects turn out tobe harmful in the more extended periods beyond the peak pointof carbon emissions which correspond to 1,063,213 milliontourists. Therefore, this study strongly confirms the existence ofan inverted U-shaped Environmental Kuznets Curve hypothesisfor Malta
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
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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