1,721,316 research outputs found
La stele urbana del frumentarius M. Coelius Homullus (CIL, V, 3362) e il problema della provenienza delle iscrizioni romane
No full textThe urban stele of the frumentarius M. Coelius Homullus (CIL, V, 3362) and the problem of the provenance of the Roman inscriptions Not knowing with certainty the origin of a Latin inscription is one of the main difficulties that the epigraphist encounters in his research. This can lead to serious scientific errors, with the creation of “ghost persons” or the incorrect attribution of an inscription to a place or persons. So we pre-sent here as a case study an inscription of a frumentarius, an elite soldier with intelligence duties, who all scholars have always believed to come from Verona. In reality, the analysis of the lithotype (Proconnesian marble), never used in Roman Verona for sepulchral monuments in the early Im-perial age, and the comparison with other very similar steles from Rome and characteristic not only of the Praetoriani and Vigiles, but also of the Frumentarii, has brought very interesting re-sults. This inscription is not from Verona but comes from Rome and entered Scipione Maffei’s col-lection through some collecting transfers that are difficult to reconstruct, at least for the moment
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
Prestroke barley beta-D-glucan supplementation protects heart and brain from consequences of ischemic stroke regardless of caloric restriction
No full textBackground: Chronic psychosocial stress (PS) and diet-induced obesity cause HBAd, yet its impact on post-stroke outcome is uncertain. 3% barley beta-D-glucan (BBG) supplementation in a high-fat diet (HFD) prevented HBAd in obese PS-exposed mice. We hypothesize that prestroke BBG dietary supplementation may protect heart and brain from stroke's severe consequences regardless of calorie restriction.
Methods: MCAO was performed on adult male C57BL/6J mice with (n=8) and without (n=8) HBAd. Long-term PS exposure caused HBAd in HFD-induced obese mice. HBAd mice were administered an HFD diet with (HFD-beta, n=4) or without (HFD, n=4) 3% BBG before a stroke. Both groups got a month-long normocaloric diet without BBG after stroke. Baseline and 30-day post-stroke motor brain and heart function were assessed. Grid walking, cylinder tests, and
echocardiography measured motor brain and heart function
Results: HBAd mice exhibited severe stroke-induced brain injury compared to mice without HBAd. Motor recovery was significantly improved in HFD-beta mice within 30 days after MCAO, whereas
heart rate was significantly reduced by 30% in both groups without changes of left ventricular systolic and diastolic function. However, heart rate was positively correlated with brain motor recovery only in treated mice. After stroke, HFD-beta had significantly lower end-diastolic interventricular septum thickness than HFD mice.
Conclusions: Pre-stroke HFD BBG supplementation reduced brain ischemia damage and cardiac remodeling in mice with lowered heart rate. Our data suggest BBG supplementation of HFD is sufficient to preserve brain and cardiac function after a stroke in high-risk patients regardless subsequent caloric restriction
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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