1,720,963 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
Acute and long term effects of a nutraceutical combination on lipid profile, glucose metabolism and vascular function in patients with dyslipidaemia with and without cigarette smoking
Full text linkIntroduction Lifestyle changes present a fundamental role in cardiovascular prevention. Nutraceuticals also supplementing
diet could help in controlling the cardiometabolic risk.
Aim (1) to evaluate acute efects of a combination of nutraceuticals (cNUT) on vascular function, BP, metabolism in dyslipidaemic patients before and after smoking; (2) to evaluate 12 weeks efects of the cNUT on lipid profle, insulin resistance
and vascular function in patients with hypercholesterolemia not on statins.
Methods After 14 d run-in period, 33 patients assumed a cNUT [patented formula containing: berberine (531.25 mg), red
yeast rice powder (220 mg, 3.3 mg monacolin K) and leaf extract of Morus alba (200 mg) (LopiGLIK®, Akademy Pharma)].
To evaluate acute efects, cNUT or cNUT + smoking (in smoking subjects) on the morning of the frst day of the study and
then 26 patients prolonged 12 weeks efects.
Results In non smokers, cNUT improved FMD (p = 0.041 for treatment). In smokers, FMD decreased after smoking,
this was counteracted by intake of cNUT. In smokers, DBP increased after smoking a cigarette (p = 0.042 for treatment),
counteracted by the cNUT intake. In non smokers, thermogenesis was increased after cNUT administration (p < 0.0001
for treatment). After 12 weeks of cNUT, FMD signifcantly increased (p < 0.05) and SBP (p = 0.04), total cholesterol and
LDL cholesterol (p = 0.03) decreased.
Conclusions Our study suggests benefts of cNUT on cardiovascular prevention in hypercolesterolemic patients, non statin
treated, that goes beyond the cholesterol and insulin resistance reduction protecting the subject from negative efects induced
by smoking too
Real-World Hypertension Prevalence, Awareness, Treatment, and Control in Adult Diabetic Individuals: An Italian Nationwide Epidemiological Survey
No full textIntroduction Hypertesion is the leading cause of morbidity and mortality, worldwide, and its prevalence has been increasing in several countries, including Italy. Aims To assess hypertension prevalence, awareness, treatment, and control in a real-world sample of adults with self-reported diabetes compared with nondiabetic individuals. Methods Following the 2018 World Hypertension Day, a nationwide, cross-sectional epidemiological survey on cardiovascular risk factors ("Abbasso la Pressione!") in 3956 Italian pharmacies enrolled 47217 self-presenting volunteers (>= 18 years). Participants underwent standardized blood pressure (BP) measurements and answered a questionnaire on cardiovascular risk factors and lifestyle habits. Questions included if they had an established diagnosis of diabetes, hypertension or were on a BP medication. Hypertension prevalence was defined as systolic BP >= 140 and/or diastolic BP >= 90 mmHg. A double definition for hypertension control based on the recent European and US guidelines on hypertension was applied. Results Diabetic individuals (N = 5695, 12%) had higher rates of hypertension prevalence (80% vs. 54.7%, p < 0.001), awareness (85.6% vs 77.3%, p < 0.001) and treatment (85.8% vs. 76.7%, p < 0.001), but lower hypertension control rates (36.1% vs. 39.6% according to the 2018 European guidelines, p < 0.001; 25.4% vs 30.8% according to the 2017 US guidelines, p < 0.001) than nondiabetics. Diabetic participants tended to be older, sedentary, overweight/obese, dyslipidemic men, with higher 10-years cardiovascular risk than nondiabetics (p < 0.001). Uncontrolled hypertension was associated with male gender, diabetes, body mass index, unhealthy lifestyle habits, and older age. Conclusions Elevated hypertension awareness and treatment rates in diabetic adults do not translate into adequate BP control in the real world. Concomitant unfavorable metabolic features and unhealthy lifestyle habits might contribute to this observation
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
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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