1,721,052 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
Obesity and cardiovascular disease. Aspects of methods and susceptibility.
Full text linkThe aim of this thesis was to study the morbidity and mortality of cardiovascular disease (CVD) in obese individuals, as measured by different obesity measurements, and to explore how the CVD risk related to obesity was modified by other biologic and socio-demographic circumstances. Data from two population-based cohort studies was used. The Malmö Preventive Project included 22 444 middle-aged men, with a mean follow-up of 17.7 years. In a subcohort of 6193 men, information on inflammatory proteins was available. The Malmö Diet and Cancer Study included 28 098 men and women, with a mean follow-up of 7.6 years. National and local registers were used to follow the incidence of coronary events (CE), stroke and mortality. Body mass index (BMI) was an independent risk factor for CE and mortality in men. However, the risk associated with obesity was increased by exposure to other atherosclerotic risk factors (smoking, hypertension, diabetes mellitus and hyperlipidemia), of which smoking seemed to be the most important. Obesity was more prevalent in men with manual work and in men living alone, than in men with non-manual work and in cohabiting men. Adjusted for lifestyle and biological risk factors, the increased risk of CE and death for obese men with manual jobs was applicable only to those who were single. There was a positive interaction between obesity and living alone for incidence of CE. Increased BMI was related to plasma levels of inflammation-sensitive proteins (ISP) in men. The CVD risk varied widely between obese or overweight men with high and low ISP. Body fat percentage (BF%), measured by bioelectrical impedance method, was an independent risk factor for cardiovascular morbidity and mortality in men and women. BF% was a stronger CVD risk factor in women than in men. The raised CVD risk associated with high BF% was reduced by physical activity. Body fat distribution as measured by waist hip ratio (WHR) was associated with increased CVD risk. WHR added to the CVD risk in women at all levels of BMI and in men with normal weight. It is concluded that the susceptibility to CVD in obese people differs substantially according to subsets of other biologic and socio-demographic circumstances
Från evidensbaserad medicin till kliniskt kunskapsstöd
No full textAllmänmedicin är ett brett område som spänner över många sjukdomstillstånd, med fokus på patientcentrering. Inom många områden sker en snabb kunskapsutveckling och rekommendationer för utrednings- och behandlingsstrategier uppdateras hela tiden. För en allmänläkare kan det vara svårt att hålla sig uppdaterad och tidsbrist begränsar möjligheterna att leta kunskap i det dagliga kliniska arbetet. Digitalisering och ökande tillgång till information via internet gör att patienter är alltmer pålästa och förberedda. Detta ger dock inte bara adekvat kunskap utan även information som ligger långt från vetenskap och beprövad erfarenhet. Även medarbetaren inom sjukvården riskerar att ta till sig information som inte är faktagranskad. För att kunna förklara för patienten vilken information som är pålitlig, är det av stort värde att kunna hänvisa till information som är kvalitetssäkrad utifrån evidens
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
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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