1,723,654 research outputs found
Being after Heidegger : a mehta-mimamsa rejoinder
No full textBeing after Heidegger : a mehta-mimamsa rejoinde
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
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
Big data for a rare disease: complexity and usefulness
No full textIntroduction: Cystic Fibrosis (CF) is a genetic rare disease, but the concerted actions of medical personnel, researchers and patients allowed the institution of the European Cystic Fibrosis Society Patient Registry (ECFSPR) to collect information on a large number of patients from different European countries in a common format [1].
Objectives: The aim is to show the complexity of the ECFSPR that deals with the management and analysis of a large amount of data and the usefulness of such information for the care of CF patients.
Methods: The ECFSPR collects information on CF European patients (diagnosis, genetics, lung function, growth, complications, microbiology, therapy and transplantation) collated annually by national CF registries and individual CF centres since 2003 (cross-sectional data till 2007, longitudinal data from 2008): it includes data of about 30,000 patients from 22 countries [2]. In order to identify and solve problems, a team that daily works on the ECFSPR was set up ‘service desk’ together with an executive committee and a steering group composed by national representatives that define the major activities of the ECFSPR (data protection legislation, use of data). The research activity is supervised by a scientific committee that identifies major research areas and approves the external data requests.
Results: The critical aspects encountered in the institution of the ECFSPR (definition of the population under study, of inclusion criteria, of what to measure and how) were dealt with a definition group whose members have different expertise and a long experience in CF in creation of healthcare databases.
Assessment of whether patients registered meet the inclusion criteria, data quality controls and data management, handling of missing data, maintaining patient confidentiality and dissemination of data are activities that need to be carried out daily. The assessment of the compliance of the inclusion criteria is responsibility of the national CF registries and individual CF centres since the information sent to ECFSPR are not enough to decide if patients can be included or not. The experience and the expertise of each member of the data quality control group allowed creation of a complete and shared list of data quality controls that are performed by all national registry data managers before sending the data to the ECFSPR. The data management and the handling of missing data are the main activities of the working group: from the uploading of the data to the freezing of the database through the process of correction of the inconsistencies found in the data, the registry coordinator, the service desk and the statistician work in close contact with the national and centres representatives. Maintaining patients confidentiality is one of the crucial aspects in order to reassure patients that decide to give the consent of the use of their data. With a clear language, the ECFSPR gives the necessary information to the patient in order to ensure that security measures meet data protection legislation and are updated if necessary.
The availability of the information on a large number of patients affected by a rare disease allows the study of the epidemiology of the CF [3, 4], also focusing on CF atypical patients. The availability of this information allows also the identification of group of patients eligible for clinical trials that, otherwise, could not be carried out if only a small number of patients were involved. Pharmacovigilance is a potential aspect that can be investigated in order to record adverse events following the use of treatments.
Monitoring care services in the European countries and, for future, planning adequate CF centres are other activities that the availability of a large amount of information makes possible [5]. Giving an answer to a clinical request needs to take into account that these are registry data and they are not collected with ad hoc studies. However, studies on registry data can have an explorative nature and ad hoc studies can be carried out starting from the first results obtained by the ECFSPR.
Conclusions: The complexity of the ECFSPR is magnified by the international setting: agreement on all the aspects of the involvement into the ECFSPR is not easily reached in a short time. However the usefulness of information for the care of CF patients that can be obtained from a European registry for a rare disease is inestimable, therefore all the difficulties are faced and overcome.
References
[1] Viviani L, Zolin A, Mehta A, Olesen HV. The European Cystic Fibrosis Society Patient Registry: valuable lessons learned on how to sustain a disease registry. Orphanet J Rare Dis. 2014 Jun 7;9(1):81. doi:10.1186/1750-1172-9-81.
[2] Zolin A, McKone EF, van Rens J et al. ECFSPR Annual Report 2010, 2014, accessed on 15th May 2015.
[3] Kerem E, Viviani L, Zolin A, MacNeill S, Hatziagorou E, Ellemunter H, Drevinek P, Gulmans V, Krivec U, Olesen H on behalf of the ECFS Patient Registry Steering Group. Modifiers of pulmonary function in cystic fibrosis: analysis of the data of the ECFS Patient Registry. Eur Respir J. 2014 Jan;43(1):125-33. doi: 10.1183/09031936.00166412.
[4] De Boeck K, Zolin A, Cuppens H, Olesen HV, Viviani L. The relative frequency of CFTR mutation classes in European patients with cystic fibrosis. J Cyst Fibros. 2014 Jul;13(4):403-9. doi: 10.1016/j.jcf.2013.12.003.
[5] Burgel PR, Bellis G, Olesen HV, Viviani L, Zolin A, Blasi F, Elborn JS; ERS/ECFS Task Force on The Provision of Care for Adults with Cystic Fibrosis in Europe. Future trends in cystic fibrosis demography in 34 European countries. Eur Respir J. 2015 Mar 18. pii: ERJ-01963-2014
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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