1,720,971 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
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
The Effect of Presurgical Gemcitabine Cisplatin Chemotherapy for Urothelial Carcinoma
Get PDFNeoadjuvant methotrexate, vinblastin, adriamycin and cisplatin (MVAC) chemotherapy is now recommended for muscle invasive bladder cancer. On the other hand, gemcitabine and cisplatin (GC) is often substituted for MVAC in patients receiving neoadjuvant chemotherapy followed by radical cystectomy, although it not clear whether GC has a similar benefit in this setting. We assessed 27 patients who received MVAC or GC as presurgical or neoadjuvant chemotherapy followed by radical surgery from 2007 to 2011. We evaluated adverse events of each chemotherapy and also the pathological T stage of the primary site, which was indicated to be a prognostic factor in previous reports. Ten patients received GC therapy and 17 patients MVAC. Every MVAC patient received 2 courses of chemotherapy, and 2-7 courses of GC (median 3 courses). Only one patient receiving MVAC (5.9%) and 2 patients receiving GC (20%), achieved pT0 there being no significant difference between the two groups. Although the decrease in platelets was greater in the patients receiving GC than in those receiving MVAC, blood transfusion was needed only in the MVAC group. No patient had to postpone the surgery due to side effects from chemotherapy. The effects of the GC regimen at the primary site of urothelial cancer seem to be similar to those of the MVAC regimen
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
Dosing Schedules and Outcomes in Patients Treated with First-Line Sunitinib for Advanced Renal Cell Carcinoma
Get PDFThe objective of this study was to determine whether alternative sunitinib schedules (AS) could prolong survival of patients with advanced renal cell carcinoma (RCC) compared to the traditional 4-weeks-on/2- weeks-off schedule (TS). Between August 2008 and December 2014, 58 patients with advanced RCC were treated with sunitinib. We retrospectively reviewed the records of the patients who received first-line sunitinib. The progression-free survival, overall survival, relative dose intensity and toxicity in the AS and TS groups were compared. A total of 38 patients were included in the analysis. AS was used for 22 patients who started to receive sunitinib beginning in December 2012. For these patients, sunitinib was administered with a 2-weeks-on/1-week-off, 2-weeks-on/2-weeks-off or 2-weeks-on/3-weeks-off schedule according to the adverse events and clinical characteristics of each patient. The median progression-free survival was 5 months (95% CI : 3-7) for TS compared to 12 months (95% CI : 7-17) for AS (p＝0.0020). The median overall survival was 17 months (95% CI : 10-20) for TS compared to 57 months (95% CI : 25-57) for AS (p＝0.0006). There was no significant difference between the TS and AS groups (64% versus 71%). The incidence of Grade ≥3 thrombocytopenia in the AS group was smaller than that in the TS group (44% versus 27%). Treatment with sunitinib using AS may provide a better outcome than that with TS. Prospective, randomized trials should be conducted to confirm this speculation
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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