1,720,959 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
Reproductive behaviour, endocrinology and captive breeding of the Malayan Sun bear (Ursus malayanus) : a thesis presented in partial fuflilment of the requirements for the degree of Master of Science in Zoology at Massey University
Get PDFA better understanding of Sun bear (Ursus malayanus) reproductive biology is essential to implement more effective management of zoo populations. The objective of this study was to document and describe reproductive behaviour, monitor ovarian and testicular cycles, and review approaches to captive breeding. Because Sun bears exhibit no fixed breeding period in captivity, identifying a set of behaviours associated with oestrus, pregnancy and impending parturition are important. During 1997 three male:female pairs at two zoos were studied for periods of up to 0.05) on testosterone concentrations, which fluctuated throughout the year, with most animals showing sustained increases in androgen excretion at 4-6 month intervals. The mean length of the follicular and luteal phase was 11.2 ± 1.3 days and 93.3 ± 3.0 days, respectively. Increased faecal oestradiol concentrations were associated with the onset of oestrus behaviours and breeding activity; an analysis of endocrine-behaviour data suggests that these behaviours may serve as useful indicators of physiological oestrus. The pattern of oestradiol and progesterone metabolite excretion during pregnancy and pseudopregnancy was similar, indicating that sex steroid monitoring may be of limited use for unequivocal pregnancy diagnosis in ursids. Analysis of studbook data and breeding records from Sun bears in North American and New Zealand zoos revealed that reproduction in these populations is strongly seasonal with the majority (>75%) of births occurring during summer and autumn. A bimodal pattern of reproduction was observed, resulting from sharp peaks in the birth rate during July and October. Findings suggest a correlation between breeding activity and monsoon patterns in this species' native habitat. The factors limiting reproductive success in captive Sun bear populations are not understood. Difficulties confirming pregnancy, coupled with the failure of some zoos to separate potentially pregnant females or implement remote surveillance, reduces reliable statistics for birth or neonate mortality and prevents an investigation of the causes of cub fatality. A review of breeding records from various zoos indicates that standardising approaches to husbandry might also improve Sun bear reproduction in captivity
Walking in Merri Circles
Get PDFThe weight of planetary problems is distressing, and the forgetting seems to have multiplied when I wasn’t looking. In late 2020, whilst a global pandemic is also multiplying with disastrous and tragic consequences, I get my mask on. I make sure my shoelaces are tied and tell my children who are studying remotely, or streaming with screens blazing unchecked, that I am disappearing for a walk along the Merri Creek. Walking for one hour and now two for exercise, as mandated by the Victorian State Government, has been an activity that propels people out of their houses. Walking has taken on new significance for Melburnians living in COVID-19 lockdown: exercise is a reason to legally leave your house and you are reminded as you put one foot in front of the other that you can walk five kilometres in any direction. Knowing that is a quiet freedom. We are enmeshed and complicit, in the way we are also entangled, unpredictable, clever, complex, stupid and amazing, just like other organisms. Every action has a consequence, no matter how big or small
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