1,721,006 research outputs found
Association between Non-Hodgkin’s Lymphoma and essential thrombocythemia
No full textNo abstract availabl
Analisi della suscettività al dissesto idrogeologico del bacino del T. Roglio (Val d’Era – Toscana): confronto tra analisi di regressione logit e analisi cart per la determinazione delle unità di risposta all’erosione.
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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
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
Il paziente ustionato: fattori associati all'insorgenza del disturbo post-traumatico da stress e indicazioni per l'intervento.
No full textScopo. Partendo dall’evidenza che non tutti i pazienti ustionati sviluppano un Disturbo Post-Traumatico da Stress (PTSD), l’obiettivo di questa overview è descrivere le variabili che possono favorirne l’insorgenza in conseguenza a un’ustione e delineare indicazioni per l’intervento.
Metodi. È stata effettuata una ricerca su PubMed degli studi relativi al PTSD nella popolazione ustionata usando la parola-chiave burn in combinazione con le seguenti altre: PTSD, traumatic event, trauma, ASD, psychological factors. L’attenzione è stata rivolta ai lavori pubblicati in Inglese nell’ultimo decennio (1998-2009).
Risultati. Dalla ricerca sono emersi in tutto 37 articoli. Tra i fattori di rischio che concorrono all’insorgenza del PTSD sono stati individuati, principalmente, la presenza di sintomatologia post-traumatica nelle prime settimane successive all’ustione, il coping di evitamento, il nevroticismo, la presenza di disturbi psichici antecedenti il trauma e il grado di deturpazione estetica. I principali fattori protettivi emersi dalla rassegna sono invece la ricerca di sostegno sociale o emozionale e l’estroversione. Scarse sono le informazioni relative al trattamento di questi pazienti.
Conclusioni. La letteratura citata evidenzia l’importanza della vulnerabilità individuale, oltre all’esperienza di un evento traumatico in sé, nello sviluppo di un PTSD nei pazienti ustionati. Questi pazienti devono far fronte a problemi del tutto peculiari e specifici, per cui, al fine di strutturare un adeguato intervento, diventa utile valutare, oltre alle implicazioni fisiche e psicosociali dell’ustione, le caratteristiche psicologiche di ogni paziente, in modo tale da articolare un trattamento che tenda conto della complessità del paziente ustionato
The burn patient: Factors associated with post-traumatic stress disorder and directions for intervention
No full textAim. Starting from the evidence that not all burn patients develop a post-traumatic stress disorder (PTSD), the aim of this overview was to describe variables, which favour the development of the disorder following to burn injury and to delineate directions for a treatment. Methods. We searched articles in English related to PTSD in the population suffering from burns in the PubMed database, using the key word 'burn' in combination with: PTSD, traumatic event, trauma, ASD, and psychological factors. We concentrated our attention on articles published in the last decade (january 1998-march 2010). Results. We found 32 articles. The risk factors concurring in the onset of PTSD are the presence of post-traumatic symptoms in the first following weeks to the burn, the avoidant coping, nevroticism, the presence of psychiatric disorder before the trauma, and the degree of disfigurement. The principal protective factors emerged from the review are the search of social or emotional support and extraversion. Information related to the treatment of these patients is scarce. Conclusions. The literature underlines the importance of the individual vulnerability to the development of PTSD in burn patients, besides the experience itself of a traumatic event. These patients must face peculiar and specific problems, therefore, with the purpose to develop a suitable intervention, it would be useful to appraise, besides the physical and psychosocial implications of the burn, the psychological characteristics of each patient, to articulate a treatment that may account for the complexity of the burn patient
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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