1,721,004 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
Análisis comparativo de la función pulmonar en sujetos con y sin hemiplejía/hemiparesia crónica
No full text[Resumen]
Objetivo. Comparar la función pulmonar, fuerza y resistencia de la musculatura
respiratoria de sujetos con hemiplejía/hemiparesia crónica secundaria a un accidente
cerebrovascular (ACV), con un grupo control (GC) de personas sanas apareadas por edad y
sexo.
Material y métodos. Estudio descriptivo observacional de corte transversal con 66
sujetos (33 por grupo), en el que se efectuaron espirometrías simples y forzadas, máxima
ventilación voluntaria (MVV) y presiones respiratorias máximas (PIM y PEM). Además, se
registraron dos test de seis minutos marcha y, en el caso del grupo de estudio (GE), el
índice motor y la escala de consecuencias del ictus (ECI-16).
Resultados. El análisis comparativo de los datos revela que existe una disminución,
estadísticamente significativa, de los principales volúmenes pulmonares estáticos y
dinámicos del GE con respecto al GC. Dicha disminución mostró, mediante el análisis por
conglomerados, una tendencia hacia el patrón ventilatorio restrictivo. También se registró
una disminución, estadísticamente significativa, de la P[M, PEM Y MVV, en el GE frente al
Gc.
Conclusión. Los supervivientes a un ACV en fase crónica presentan una disminución de
[os volúmenes pulmonares, con tendencia al patrón ventilatorio restrictivo, así como una
disfunción de la musculatura respiratoria, clínicamente relevante, definida por un déficit
de la fuerza y resistencia de la misma.[Resumo]
Obxectivo. Comparar a función pulmonar, a forza e a resistencia da musculatura
respiratoria dos suxeitos con hemiplexíajhemiparesia crónica secundaria a un accidente
cerebrovascular (ACV), cun grupo control (GC) de persoas sas emparelladas por idade e
sexo.
Material e métodos. Estudo descritivo observacional de corte transversal con 66 suxeitos
(33 por grupo), no que se efectuaron espirometrías simples e forzadas, máxima
ventilación voluntaria (MVV) e presións respiratorias máximas (PIM e PEM). Ademais,
rexistráronse dúas probas de seis minutos marcha, e no grupo de estudo (GE), o índice
motor e a escala de consecuencias do ictus (ECI-16).
Resultados. A análise comparativa dos datos revela que existe unha diminución,
estatisticamente significativa, dos principais volumes pulmonares estáticos e dinámicos do
GE con respecto ao Gc. Dita diminución mostrou, a través da análise por conglomerados,
unha tendencia cara ao patrón ventila torio restritivo. Tamén se rexistrou unha
diminución, estatisticamente significativa, da PIM, PEM e MVV no GE fronte ao Gc.
Conclusión. As persoas que sobreviven a un ACV, na fase crónica, presentan unha
diminución dos volumes pulmonares, cunha tendencia cara ao patrón ventilatorio
restritivo. Do mesmo xeito, mostran unha disfunción da musculatura respiratoria,
clínicamente relevante, definida por un déficit da forza e a resistencia da mesma.[Abstract]
Objective. To compare static and dynamic lung volumes, and respiratory muscle strength
and endurance, in chronic stroke survivors (SS) with a control group (CG) of healthy
people matched by age and sex in order to achieve a better understanding of the
respiratory system of chronic SS.
Material and methods. A cross-sectional study was conducted with 66 subjects (33 per
group), in which simple and forced spirometry, maximum voluntary ventilation (MVV) and
maximal respiratory pressures (MIP and MEP) were performed. Moreover, we conducted
two six-minute walk tests and, in the SS, we also measured the Motricity Index and the
Stroke Impact Scale (515-16).
Results. The results demonstrated that SS with chronic hemiplegiajhemiparesis have
significantly lower values of both static and dynamic lung volumes compared to the CG.
Furthermore, we observed through the cluster anaJysis that SS presented a trend towards
restrictive ventilatory pattern. Our findings also demonstrated that SS have significantly
lower values ofMIP, MEP and MW compared to the CG.
ConcIusion. Chronic stroke survivors have a decrease in their lung volumes, showing a
trend towards restrictive ventilatory pattern. Moreover they present a clinically relevant
respiratory muscle dysfunction, in terms of weakness and low endurance
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
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