1,720,955 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
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
THE UNRESOLVED ISSUE OF THE COMORBIDITY BETWEEN OBSESSIVE-COMPULSIVE AND BIPOLAR DISORDERS: A CLINICAL STUDY
No full textObsessive Compulsive Disorder (OCD) is a common mental disorder that often causes great sufferance, with substantial impairment in social functioning and quality of life and affects family and significant relationships. OCD often presents itself in comorbidity with other mental disorders, like Bipolar Disorder (BD). The coexistence of BD and OCD has long intrigued experts and the exact definition of comorbidity between BD and OCD is still uncertain. It is unclear if this comorbidity indicates the simultaneous presence of two separate diseases or if it indicates a more severe subtype of either BD or OCD. The aim of this study is to understand whether, within a group of subjects with OC symptoms, the presence of a comorbidity with BD, outlines a different and specific psychopathological and therapeutic clinical picture. The study recruited a total of 277 OCD outpatients that where divided into two groups: the first one that presented also a diagnosis of BD, according to DSM criteria, and the second one without this comorbidity. All subjects were assessed with the The Yale-Brown Obsessive Compulsive Scale (Y-BOCS) to have a precise assessment of the severity of OCD symptoms. In addition, several socio-demographic, clinical and therapeutic variables have been identified. We included 60,6% of man and 39,4% of women. Considering the whole sample, we find an onset at 18.84 years old but some patients reported an onset before the age of 7. Those with a childhood onset and/or a perinatal trauma presented a more severe form of the disorder, with a greater amount of symptoms and a worse functioning. Out of 277 patients, 37.9% met the criteria for BD. This suggests that BD is a relevant diagnosis to take into account in this population. The comorbidity group had a later onset of the disorder, a gradual and protracted progression of OCD symptoms, characterized by initially moderate and sporadic obsessions or compulsions that gradually increased in frequency and intensity, a chronic course of OCD and less comorbid disorders.
Interestingly, we find a statistically significant association between the presence of OC traits and bipolar comorbidity suggesting that the presence of OC traits is associated with a higher likelihood of having bipolar comorbidity in individuals with OCD. We didn’t find significant difference in terms of symptoms severity, type of obsession and compulsions, suicidal risk or substance use between the two groups. Regarding the psychopharmacological treatment, as expected, in our sample the most commonly prescribed medications were SSRIs and Clomipramine. Considering the other medication used in this sample, there were no statistical differences between the two group except for Atypical Antipsychotics, lithium salts and Valproic acid that were more prescribed in the bipolar comorbidity. This finding aligns with the common clinical use of lithium salts, atypical antipsychotics and valproic acids as mood stabilizers in managing BD. The presence of a comorbidity with BD seems to outline a specific disorder presenting peculiar clinical characteristics and needing tailored treatment approaches. This study should be considered in light of several limitations. Further studies in wider samples and, possibly, with a longitudinal design are needed to better investigate the differences and similarities between OCD and BD-OCD to a better clinical and therapeutical management
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
- …
