1,721,070 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
Structural Features of Antitumor Titanium Agents and Related Compounds
Full text linkPrevious studies established some Ti compounds as having marked activity against tumors of the
gastrointestinal tract and lack of side effects common to widely used cytostatic agents. We describe pertinent
structural features of known antitumor Ti agents and other potentially active compounds. Particularly
noteworthy features are that Ti-O bonds are short and Ti-O-Ti bond angles are large, demonstrating that in
these compounds the O binding has high s-character approaching sp hybridization
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
Nutritional status, dietary habits, nutritional knowledge and self-care assessment in a group of older adults attending community centres in Pavia, Northern Italy
No full textBackground: The population of industrialised countries is ageing as a consequence
of an increase in life expectancy. As a result of the increasing ageing
process, the assessment of nutritional status and dietary habits, as well
as the assessment of self-care, is needed to plan selected actions aimed at
improving the quality of life in the third and fourth life spans.
Methods: A cross-sectional study was carried out on a randomly selected
sample of 200 healthy older adults (65 years old), attending community
centres for older people in Pavia, Northern Italy. Ninety-two percent of the
recruited subjects participated in the survey. Anthropometric measurements
and the Mini Nutritional Assessment were performed. Dietary habits, nutritional
knowledge and self-care were investigated using a questionnaire
administered by two dietitians.
Results: The majority of subjects were low socio-economic status and overweight
[mean (SD) body mass index = 28.4 (4.3) kg/m2], 12% were malnourished
according to their Mini Nutritional Assessment score and the
majority of the arm muscle circumference measurements were below the
10th percentile, predicting accelerated loss of lean mass, even in the healthy
independently living older adults. Only 30% of the sample had adequate
dietary habits, whereas the ability to self-care was good for the whole
sample.
Conclusions: The unhealthy and unbalanced diet, frequently too rich in
sugar and fats and low in protein intake, might explain being overweight and the loss of lean mass in the study subject
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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