1,720,979 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
Comparison of Treatment Outcomes in Patients with Rectal Cancer
No full textObjective: The aim of the present study is to evaluate survival results and acute chemoradiotherapy toxicity in patients with rectal cancer who underwent preoperative chemoradiotherapy (CRT), postoperative CRT, and non-operative CRT. Methods: The records of 139 patients with rectal cancer were analyzed retrospectively. Out of these, the data 9 (6%) patients who died during or immediately after treatment and 2 (1%) patients who gave up the treatment were not used in the survival analysis. Results: Postoperative CRT was applied to 57 (44%) patients, preoperative CRT to 47 (37%) patients, and non-operative CRT to 24 (19%) patients. Non-operative CRT group was the oldest patient group (median age: 70). There was a difference between the treatment groups regarding tumor localization (p0.050). Conclusion: While no difference was determined between preoperative and postoperative CRT applications regarding local recurrence and distant metastasis, overall survival and disease-free survival, and adverse effects of treatment, LVI, and PNI determined in earlier pathological stage and lower frequency for the preoperative application. However, overall survival results of patients receiving non-operative CRT were worse as compared to patients receiving operative CRT
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
Does Diabetes Mellitus Increase Radiotherapy/ Chemoradiotherapy Acute Toxicities?
No full textOBJECTIVE The effect of DM on the acute toxicities of RT/CRT was investigated.METHODS 1892 patients were evaluated retrospectively. Acute toxicities were evaluated weekly during Radiotherapy (RT)/Cardiac resynchronization therapy (CRT) and follow ups were performed after 1 and 3 months according to Radiation Therapy Oncology Group criteria. The patients were divided into those without diabetes mellitus (DM) (Group 1, n=1557 82%) and patients with DM (Group 2, n=335 18%).RESULTS There was a difference between the groups in terms of gender (p<0.001), median age (p<0.001), diagnosis (p=0.023), adjuvant (p=0.023), and concurrent (p=0.047) chemotherapy. Grade 3-4 skin (p=0.001), Grade 1-2 lower gis (lower gastrointestinal system [GIS], p<0.001), and Grade 1-2 gus toxicities (GUS, p=0.012) were all observed more in Group 2; the time for which skin toxicity occurred was earlier in Group 2 (p=0.002). Grade 1-2 white blood cells (p=0.027) and Grade 1-2 hemoglobin toxicities (p=0.033) were observed more in Group 1. Hypertension coexisted in 206 patients (61% of the DM group), and blood glucose was not regulated in 256 patients (76%). In DM patients, the toxicity of grade 3-4 skin (p<0.001) and grade 1-2 lower GIS (<0.001) was higher if hypertension coexisted, while grade 1-2 lower GIS (p=0.029) was higher in DM patients whose blood glucose was not regulated.CONCLUSION In this study, it was observed that DM negatively affected acute toxicity of RT/CRT, and having hyper-tension and lack of regulation of blood glucose contributed to this negativity
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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