1,720,954 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
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
Ikke-lineær elementanalyse av fiberforsterkede betongbjelker, ved bruk av stykkevis lineært tøyningsdiagram i strekk
No full textSAMMENDRAG:
Hensikten med denne oppgaven er å undersøke om oppførselen til fiberbetong kan etterliknes på en god måte med et stykkevis lineært diagram i strekk, når alle andre materialegenskaper er i henhold til allerede eksisterende anbefalinger for ikke-lineære elementanalyser. Anbefalingene som oppgaven bygger på, er anbefalingene fra Hendriks and Roosen (2020). Oppgaven tar for seg bjelker fra studiet Xingwei Xue (2019) og analyserer de med løsningsstrategien presentert i denne masteroppgaven. For å kunne se hvordan stykkevis lineært diagram i strekk oppfører seg. Dette sammenliknes for noen bjelker, med en eksponentielle kurve som Hendriks and Roosen (2020) anbefaler for ordinær betong.
Oppgaven viser at stykkevis lineært diagram i strekk etterlikner oppførselen til de fleste bjelkene på en god måte, og treffer godt med den maksimale kraften. Den viser også at den eksponentielle modellen treffer bedre for de laveste fiberinnholdene for bjelken hvor begge modeller er testet. Det konkluderes med at den stykkevis lineære modellen ikke klarer å etterlikne oppsprekkingen av bjelken på korrekt måte. Samtidig viser variasjonen i antall punkter for strekkdiagrammet at å legge til eller fjerne to punkter, ikke endrer oppførselen til bjelkene det er brukt på i nevneverdig grad. Dette fordi bjelkene ikke når store nok tøyninger i strekk til å havne utenfor det første lineære området til kurven frem til strekkfastheten. Momenttrykkbrudd sammen med lokalt brudd i betongen under opplegget til trykkdiagonalen, er de fremtredende bruddformen for alle bjelkene
Ikke-lineær elementanalyse av fiberforsterkede betongbjelker, ved bruk av stykkevis lineært tøyningsdiagram i strekk
Get PDFSAMMENDRAG:
Hensikten med denne oppgaven er å undersøke om oppførselen til fiberbetong kan etterliknes på en god måte med et stykkevis lineært diagram i strekk, når alle andre materialegenskaper er i henhold til allerede eksisterende anbefalinger for ikke-lineære elementanalyser. Anbefalingene som oppgaven bygger på, er anbefalingene fra Hendriks and Roosen (2020). Oppgaven tar for seg bjelker fra studiet Xingwei Xue (2019) og analyserer de med løsningsstrategien presentert i denne masteroppgaven. For å kunne se hvordan stykkevis lineært diagram i strekk oppfører seg. Dette sammenliknes for noen bjelker, med en eksponentielle kurve som Hendriks and Roosen (2020) anbefaler for ordinær betong.
Oppgaven viser at stykkevis lineært diagram i strekk etterlikner oppførselen til de fleste bjelkene på en god måte, og treffer godt med den maksimale kraften. Den viser også at den eksponentielle modellen treffer bedre for de laveste fiberinnholdene for bjelken hvor begge modeller er testet. Det konkluderes med at den stykkevis lineære modellen ikke klarer å etterlikne oppsprekkingen av bjelken på korrekt måte. Samtidig viser variasjonen i antall punkter for strekkdiagrammet at å legge til eller fjerne to punkter, ikke endrer oppførselen til bjelkene det er brukt på i nevneverdig grad. Dette fordi bjelkene ikke når store nok tøyninger i strekk til å havne utenfor det første lineære området til kurven frem til strekkfastheten. Momenttrykkbrudd sammen med lokalt brudd i betongen under opplegget til trykkdiagonalen, er de fremtredende bruddformen for alle bjelkene.The purpose of this thesis is to investigate whether the behavior of fibrous concrete can be mimicked in a good way with a piecewise linear diagram when all other material properties are in accordance with preexisting nonlinear element analysis recommendations. The recommendations on which the assignment is based are the recommendations from Hendriks and Roosen (2020). The thesis deals with beams from the study Xingwei Xue (2019), and analyzes them with the solution strategy presented in this master thesis. To see how the piecewise linear diagram in a row behaves in tension. This is for some of the beams compared with the recommended exponential curve that Hendriks and Roosen (2020) recommends for ordinary concrete.
The thesis shows that a piecewise linear diagram in tension mimics the behavior of most beams in a good way, and coincides well with the maximum force observed. It also shows that the exponential model performs better for the lowest fiber content of the beam where both models have been tested. It is concluded that the piecewise linear model fails to mimic the cracking of the beam correctly. At the same time, the variation in the number of points for the bar graph shows that adding or removing two points does not significantly change the behavior of the beams it is used on. This is because the beams do not reach large enough stretches in tension to fall outside the first linear range of the curve until the tensile strength
- …
