1,720,989 research outputs found
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
Energy Modeling and Energy Efficiency Opportunities for a Public Library Building in the Upper Peninsula of Michigan
Get PDFEnergy modeling tools have been extensively used for analyzing building performance as well as for assessing energy efficiency opportunities. The present research has a twofold aim: (1) to model the natural gas consumption and the total electricity consumption of a 12600 sq. ft. public library building in Houghton, MI, and (2) to identify any opportunities to improve energy efficiency. This was accomplished by first developing and validating an eQUEST model for the library building in conjunction with a linear regression model correlating the natural gas consumption (during winter) with heating degree days and the electricity consumption (during summer) as a function of cooling degree days. The said library building, which is serviced by two rooftop furnaces, each with a DX coil, and a hot-water loop using two boilers, has been facing HVAC issues for a few years now, the most common complaint being that it gets too hot in the winter despite the thermostat being set to provide comfortable temperatures. This motivated us to model the building and try and discover the causes for complaints like the above-mentioned while keeping an eye on any energy saving opportunities. The eQUEST model Mean Base Error (MBE) is -3.60% and 2.48% for natural gas consumption and electricity consumption respectively. The coefficient of variation of Root Mean Squared Error -Cv (RMSE) is 7.33% and 4.14% for the natural gas consumption and for electricity consumption respectively. Having thus gained confidence in the ability of the model to provide reasonable predictions, the same was then exercised to understand the key factors responsible for energy consumption in the building and to check for energy efficiency opportunities. Preliminary results suggest that the principal factors affecting the building energy consumption are the lighting, HVAC loads, and occupancy and that the natural gas consumption of the building could be lowered by up to 20% using the furnace units alone (i.e., by dispensing with the boilers), while still meeting the building’s heating requirements. One of the issues also identified in the course of the analysis was that the thermostat is located about 10 ft. away from the radiators and grills and hence it is possible that the HVAC system responds to a lower average temperature than that in the room
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
A Novel”Positive” Approach/Analysis for Enhanced Understanding of the”Negative” Statement of the Second Law of Thermodynamics
No full textAccording to the Kelvin-Planck (K-P) statement of the second law of Thermodynamics, “It is impossible to construct a device that will operate in a cycle and produce no effect other than the raising of a weight and the exchange of heat with a single reservoir.” Although it is impossible to prove this negative statement, it is however accepted because it rests on the fact that no experiment has ever contradicted it. Thus, this statement is accepted as an axiom which is then used to prove different theorems related to the efficiency of reversible heat engine and refrigerator cycles operating between two thermal reservoirs. A well-known example of such a theorem is the following important proposition regarding the efficiency of a reversible cycle: “It is impossible to construct an engine that operates between two given reservoirs and is more efficient than a reversible engine operating between the same two reservoirs.” Many engineering/engineering technology students of Thermodynamics for the first time find it very difficult to appreciate the true meaning and profundity of this apparently simple K-P statement. This is largely due to the fact that the student needs to “accept” as true this negative statement right at the outset of his/her study of the second law, without being offered any “positive” explanations or supporting reasons. This might explain why many students end up considering the fascinating course of Thermodynamics, which is deeply philosophical as well as intensely pragmatic at once, as a “difficult” subject. To alleviate this difficulty, we have taken a novel approach to enable the student to properly understand the negative statement in a more “positive” manner. We commence the analysis by constructing several thermodynamic cycles using an ideal gas as the working substance and consisting of both reversible and irreversible processes. The working substance in all these cycles interacts with only one thermal reservoir at a single temperature, as required by the K-P statement. It is then shown conclusively that not a single such cycle can be designed or constructed which will have the sole effect of doing positive work on the surroundings. We recognize that this is by no means a “proof” of the negative K-P statement of the second law. However, we believe and hope that the analysis presented in this article will offer an expedient tool for enabling the struggling student to properly understand the negative K-P statement and comfortably transition to studying the subsequent theorems, corollaries, and practical applications of the second law of Thermodynamics
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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