1,720,954 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
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
Assessment of recruiting methods to enhance poultry science undergraduate programs
Full text linkRecruitment efforts are important in a college setting. With only six remaining poultry science departments, they specifically need recruitment to help meet extreme demands for students by the industry. However, little is known about which recruitment efforts are effective or if poultry science majors prefer specific recruitment methods. Chapter II of this dissertation is an assessment of current recruitment practices and enrollment of the six poultry science departments in the U.S. Results revealed that all departments currently have recruitment programs and differences were observed within each. Some were in the budget, time spent recruiting, amount of faculty dedicated to recruitment efforts, and activities utilized in recruitment efforts. Chapter III of the dissertation was a comparison of recruitment programs with student numbers, graduation rates, and student satisfaction. This study was conducted in an attempt to understand which recruitment practices work for a given poultry science department and which department, if any, could benefit from a change. Departments with low enrollment counts had variations in recruitment practices when compared to other departments with higher enrollment counts, such as their perceived effectiveness of FFA national convention, direct mailing and brochures, and hosting 4-H and FFA poultry activities. In Chapter IV, a survey was conducted to determine the influence of factors on student choice among poultry science students. This study determined that conversations with a poultry faculty member or department representative, campus student activities, cost (consist of tuition, room, and board), scholarships, preparation for employment, job opportunities, and high school agriculture teachers were the most influential factors for poultry science students in the decision to major in poultry science. Collectively, these three studies reveal that conversations with prospective students, including campus tours where these conversations can occur, should be utilized. Scholarships, cost, and employment opportunities are also very important to students. Additionally, poultry science department personnel should target FFA events and/or 4-H programs as recruitment opportunities. Other efforts could be used to raise awareness about a poultry science department or poultry science as a major, in general, but might not be effective in recruiting students to a specific department
Sanitization of broiler breeder hatching eggs using ultraviolet light and hydrogen peroxide
Full text linkUltraviolet light (UV) and hydrogen peroxide (H2O2) decrease eggshell bacteria. However, when combined, the optimum amount of each and effects on hatchability are unknown. In Experiment 1, when compared to other concentrations of H2O2 and lengths of UV, the combination of 1.5% H2O2 and 8 minutes of UV yielded optimum results with a 3 log10 CFU/egg reduction in bacteria on the eggshell. In Experiment 2, exposing eggs to this optimum combination yielded a 1000 fold reduction in eggshell bacteria but only a numerical increase in hatch of set and hatch of fertile. In Experiment 3, eggs exposed to repetitive treatments of H2O2 and UV yielded a 4 log reduction in eggshell bacteria but no differences in hatchability or chick characteristics. In conclusion, the combination of H2O2 and UV proved to be effective for eggshell sanitization, especially when used repetitively, and did not alter hatchability
- …
