1,720,980 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
Laparoscopic pyloroplasty for idiopathic non-hypertrophic pyloric stenosis in a child
No full textAcquired gastric outlet obstruction (GOO) during infancy and childhood represents an uncommon event. We describe a 6-year-old boy with GOO who did not respond to medical treatment or to endoscopic pyloric balloon dilatations. The stenosis was successfully treated with laparoscopic pyloroplasty which relieved the obstruction. (C) 2012 Elsevier Inc. All rights reserved
The role of heat shock proteins (HSPs) in vitiligo: deviation of cytotoxic response?
No full textJ.Dermatol Sci 2005 Feb.37(2):114-
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
Low cervical skin crease approach for superior sternal cleft repair
No full textSuperior sternal cleft repair aims to restore bony protection to mediastinal structures and to eliminate visible deformity. We describe a 4-day-old neonate with an isolated defect who successfully underwent primary repair using a low cervical skin crease incision. Such a novel approach combined optimal surgical exposure and excellent cosmesis. (C) 2009 Elsevier Inc. All rights reserved
Circumumbilical pyloromyotomy in the era of minimally invasive surgery
No full textBackground/purpose: No studies have investigated the cosmetic outcome of current approaches to pyloromyotomy in infants with hypertrophic pyloric stenosis. The purpose of this study was to evaluate the final appearance of the scar in patients undergoing circumumbilical pyloromyotomy. Methods: During a 16-year period, 86 infants underwent circumumbilical pyloromyotomy at our institution. A detailed questionnaire was created to document the family members' perceptions of the esthetic appearance of the scar. Data were collected by telephone interview and at clinic visit. In addition, cosmesis was assessed by 5 staff members who scored blindly the esthetic outcome of the scars with comparative photographs, using a categorical scale. Results: Fifty-seven families were tracked by telephone contact. In the family questionnaire, 100% of families reported an excellent or good scar. Of these, forty-one (72%) were available for cosmetic assessment. Follow-up ranged between 5 months and 15 years (mean, 6 years). The panel members ranked the scar, on average, as excellent or good for 90% of the patients. No assessor stated that a scar was unacceptable. Intra- and interobserver agreement was 0.72 and 0.78, respectively. Conclusions: Overall satisfaction with the cosmetic outcome of circumumbilical pyloromyotomy is very high. © 2008 Elsevier Inc. All rights reserved
Laparoscopic-assisted resection of juvenile polyp of the jejunum in a 3-year-old girl
No full textSporadic juvenile polyp of the jejunum is exceedingly rare, reported only once in the English literature. We describe a 3-year-old girl with a long-lasting history of chronic iron deficiency anemia and a delayed diagnosis of jejunal polyp. The lesion was eventually discovered by ultrasonography and successfully resected using a laparoscopic-assisted transumbilical approach. (C) 2012 Elsevier Inc. All rights reserved
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
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