1,720,959 research outputs found
Efficiency of oil companies in Russia in the context of energy and sustainable development
No full textThe transformation of the energy market and the development of its technologies radically change the industry and uncover new segments for competition. Scientific and technological progress is gradually changing the market structure and replacing petroleum products with other energy sources, creating new consumption sectors. However, the oil and gas industry still plays a major role in the energy and fuel balance of the world (almost 60% of global energy consumption is concentrated in the oil and gas sector). Due to the specifics of the petroleum sector, the companies tend to be large and have a significant direct and indirect influence on the oil industry as a whole. In this article, the authors of the study compared Russian and international companies in the oil and gas sector and identified the distinctive features of each group. To reveal the main factors influencing financial performance, we construct models of the dependence of net profit on various macroeconomic, microeconomic, institutional, and additional factors. The basic panel data model is tested, taking into account fixed and random individual effects. Results show that the profit of each major oil and gas company is affected by revenue, production costs, and tax deductions. The key interest rate set by the Central Bank of Russia is also important for the activities of oil and gas companies. A distinctive factor for petroleum corporations is the negative impact of financial leverage on the profits of domestic companies and the negative impact of investment in the environmental area for foreign companies. According to our forecasts, the total profit of the eight largest oil producers in Russia will decrease by 60% in 2020. Such forecasts are not very encouraging, but due to the current market situation, they are not surprising. © 2020 The Author
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Supply as a factor in the destabilization of the oil market
No full textThe article deals with the fundamental and conjuncture factors of the oil market equilibrium. The purpose of the study is to identify new economic indicators that affect the global pricing model in the oil market, and determine the effectiveness of the existing cartel agreement. The structure of net energy consumption, as well as features of demand for energy resources by regions of the world, is presented in the article. The study provides a comprehensive statistical analysis of the dynamics of changes in oil prices and production indicators of the largest oil producing countries in the world. The analysis highlights the factors of the oil market stabilization from the demand and supply side: production, technological and price factors. Relative indicators, such as the level of technology development and drilling efficiency in the respective segments, were found to have the greatest impact on the stability of energy prices, and long-term price stabilization is possible only if the US oil industry participates in OPEC+ agreement
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
- …
