1,720,973 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Progress toward understanding Robin sequence
No full textRobin sequence (RS) a congenital malformation named after the French stomatologist Pierre Robin, consists of the triad of micrognathia, subsequently leading to glossoptosis and varying degrees of upper airway obstruction and feeding problems. In the majority of cases a cleft palate and/or syndrome other malformation is present. RS is a heterogenic congenital disorder, whose treatment involves different caregivers from various disciplines, with different views on the approach, diagnosis, and treatment of RS. Subsequently, this makes the treatment of these patients, sometimes critically ill infants, very challenging. In this thesis, we aim to provide insight into several aspects of RS, mainly regarding diagnostics and treatment, and to facilitate decision-making, counselling of involved caretakers, and managing the expectations of parents, to optimize the care of infants with RS. The birth prevalence of RS was estimated to be 1:5,600live births. The minority (37.7%) of the reviewed patients had isolated RS. Of the non-isolated patients, 14.3% had a chromosome anomaly, 47.1% (n=56) a Mendelian disorder, with Stickler syndrome being the most common (n=27), and in 38.7% (n=46), no detectable cause could be found. Mandibular distraction osteogenesis (MDO) is one of the treatment options for RS infants. We conclude that it is an effective surgical option in the treatment of upper airway obstruction in RS, but the possible effects on developing molars and mandibular outgrowth likely necessitate secondary procedures on the long-term. This factor should be considered when deciding on treatment options and counselling of parents. Regarding other treatment options we think that NPA is a feasible, relatively minor invasive treatment option, which should be incorporated in a treatment algorithm for infants with RS as a primary measure. A cost-analysis study between MDO and tracheostomy reveals that there was a threefold increase in average total costs per patient (both direct and indirect; hospitalization, diagnostics, surgery, homecare and work absenteeism) for tracheostomy and four times as many complications were encountered. Tracheostomy seems only indicated as a surgical option to treat a subglottic problem in infants with RS.RS patients revealed to have significant more feeding difficulties than isolated cleft palate only (iCPO) patients and growth in RS infants was significantly lower compared to iCPO and healthy infants, but not affected by kind of airway management, cleft palate grade or associated disorders. Long-term studies are needed to evaluate the effect of the lower growth on further development of infants with RS. Finally we provide a comprehensive and pragmatic approach to the analysis and treatment of infants with RS, which could serve as useful guidance in other clinics to allow better comparison of results, particularly prospective studies. There is an essential need for an evidence-based management strategy with objective measures to further optimize the treatment of RS patients in the future. We hope this thesis will provide a foundation for the development and refinement of treatment approaches and an impetus for further investigations to increase our knowledge of this challenging patient group
Variations on the Author
Get PDF“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
Get PDFWe 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
New perspectives in the treatment of patients with Robin Sequence
No full textThis thesis was initiated to provide better insight in different treatment aspects for patients born with Robin Sequence, with a special focus on long-term outcomes. This resulted in that we better understand the etiology of the development of Robin Sequence, we can better support choices between the different treatment options for the individual patient with Robin Sequence, and has improved outcome prediction and counseling for patients with Robin sequence and their families
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
- …
