1,720,958 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
Diet -related risk factors for gastric dilatation -volvulus in dogs of high -risk breeds: A nested case-control study
No full textGastric dilatation-volvulus (GDV) in dogs is characterized by gastric filling with air, gastric malposition, and high case-fatality rate. Diet-related risk factors for GDV were identified using a nested case-control study. Of 1991 dogs from 11 large- and giant-breeds in a previous prospective study of GDV, 106 dogs that developed GDV were selected as cases while 212 remaining dogs were randomly selected as controls. Owner-reported information on the dogs\u27 diet included the amount and type of foods fed and selected label information. Information on ingredients of home-prepared foods and forms in which they were fed (e.g., raw, cooked) was also requested. A complete profile of nutrient intake was constructed for each dog using published references and nutrient databases. Owners also reported on feeding-related management practices such as frequency of feeding and moistening of dry food. Potential risk factors were examined for a significant (p \u3c 0.05) relationship with GDV risk using unconditional logistic regression. The study confirmed previous reports of an increased risk of GDV with increasing age (odds ratio (OR), 1.15; 95% confidence interval (CI), 1.03, 1.29), having a first-degree relative with GDV (OR, 1.90; CI, 1.06, 3.40), and having a raised food bowl (OR, 2.18; CI, 1.21, 3.93). New findings included an increased risk of GDV for dogs consuming dry foods containing fat among the first four ingredients (OR, 2.59; CI, 1.45, 4.62) or citric acid (OR, 3.16; CI, 1.70, 5.90). Dry foods containing a rendered meat meal with bone product among the first four ingredients significantly decreased the risk of GDV (OR, 0.47; CI, 0.24, 0.93). Moistening of dry food alone was not associated with GDV risk, but dry foods containing citric acid that were moistened prior to feeding significantly increased GDV risk (OR, 4.19; CI, 1.80, 9.73). Approximately 30 and 33% of all cases of GDV in this study could be attributed to consumption of dry foods containing fat among their first four ingredients or citric acid, respectively. Owners can use these findings to reduce dogs\u27 risk of GDV in these breeds
Anthropologist-Parents as Researchers: A Critical Appreciation of 'Doing Fieldwork in China . . . With Kids!' by Cornet and Blumenfield
Full text linkThis article is a review of a book that contains reflective accounts by western anthropologists who were accompanied by their children when they were conducting their anthropological fieldwork in rural China. The presence of the children resulted in unplanned interactions, leading to new data for their research. It also triggered new questions on the researchers’ cultural assumptions. Although set in the specific context of anthropological fieldwork, the reflective accounts can serve as useful learning material for early-stage researchers in many other fields
Factors associated with cumulative research funding of investigators from CIHR – a major health-research funding agency
No full textPurpose: Few systematic studies have focused on determinants of cumulative research funding (CRF), a measure of research productivity among career researchers world-wide. Using researchers funded by the Canadian Institutes for Health Research (CIHR), this exploratory study quantifies the association between CIHR-investigator roles and CRF obtained from the CIHR.
Methods: CIHR grants and awards obtained in fiscal years 1999-2006 by non-trainee principal investigators (PI) and by supervisors of CIHR trainee awards were used to determine investigator-level CRF. Log-transformed CRF was regressed on investigator role as CIHR-salary award recipient or supervisor of CIHR-trainee award recipients after adjustment for number of project-years, research area, and PI status. Number of publications in life sciences and biomedical journals from January 2000 to August 2007 was compared among 80 randomly-selected CIHR-investigators who were supervisors (n=40) and non-supervisors (n=40). Reported results were considered significant at P-value < 0.05.
Results: Multiple regression analysis based on 6515 CIHR-investigators indicated that salary award recipients were associated with a 29.5% higher CRF but the magnitude of this positive association was inversely associated with time since first receiving salary award. Supervisors were associated with, on average, a 13.1% decrease in CRF; increasing numbers of trainees supervised was associated with decreasing CRF. Earlier recipients of grants and salary awards were more likely also supervisors. The median number of publications for supervisors was higher than that for non-supervisors (31 vs. 11.5).
Conclusions: Demonstrated associations between investigator-level CRF and predictors suggest that CRF should be considered in the context of investigators’ multiple roles. The study, without establishing causality, also documents evidence of multi-lateral returns to the enterprise of academic research from salary and trainee awards. The major limitation is that CRF and predictors are derived from a single funding agency. Findings should be viewed as preliminary and should serve to develop hypotheses for future, comprehensive research
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
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