1,721,039 research outputs found
Prognostic Scales of COVID-19 Morbidity and Mortality: Necessary but also Reliable
No full textDesde que surgió en China el brote provocado por el virus SARS-CoV-2 , causante de la enfermedad denominada COVID-19 , se han identificado 103.918.285 casos en todo el mundo, con 2.254.307 muertes (datos actualizados a 03/02/2021-Universidad Johns Hopkins)1. Los brotes producidos en los distintos países han generado una alta demanda de camas hospitalarias y escasez de material sanitario. Para mitigar la sobrecarga y el posible colapso del sistema sanitario, es necesario generar evidencia sobre el diagnóstico y el pronóstico de la enfermedad2.N
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
The Research Integrity Office in Spain. A pending issue
Full text linkEn los últimos años han salido a la luz muchos casos de mala conducta científica, algunos con importantes consecuencias, que han evidenciado las brechas que globalmente existen en cuanto a integridad científica. En España también se han dado casos notables de mala conducta científica en el ámbito de la investigación biomédica. Sin embargo, hasta el momento no se ha creado un organismo encargado de supervisar las fases de ejecución, análisis y publicación de las investigaciones biomédicas desde un punto de vista ético. Por lo tanto, en este contexto, consideramos que es necesaria la creación de una oficina que supervise la integridad científica en España y que actúe en caso de sospecha de mala conducta científica, llevando a cabo una investigación independiente y con capacidad sancionadora. La existencia de dicho organismo sería de especial importancia en el caso de las investigaciones financiadas con fondos públicos, ya que en ese caso el fraude en investigación supondría la malversación de dinero público. La creación de una oficina que realmente actúe frente a los casos detectados podría tener un efecto disuasorio sobre una potencial mala conducta de algunos investigadores, previniendo así situaciones de mala conducta científica.In recent years, many cases of scientific misconduct have come to light, some with considerable consequences, highlighting the existing breaches in the scientific integrity globally. In Spain, there have also been high-profile cases of scientific misconduct. However, so far, no organism or agency has been created to monitor the execution, analysis and publication phases of biomedical research from an ethical point of view. Therefore, in this context, we consider that there is a need for the creation of an office which supervises research integrity in Spain which would act in cases of suspected scientific misconduct, carrying out an independent investigation and proposing public sanctions. The existence of such an organism would be of particular importance in the case of publicly funded research, since in that case research fraud would involve the misappropriation of public funds. The creation of an office that would act on detected cases could have a deterrent effect on potential misconduct by some researchers, thus preventing cases of scientific misconduct.Este trabajo forma parte de la tesis doctoral de Cristina Candal-Pedreira, que ha recibido una beca PFIS (número de referencia FI21/00149) del Instituto de Salud Carlos III (ISCIII)
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
Evidence-based editing: factors influencing the number of citations in a national journal
No full textPurpose: Citations received by papers published within a journal serve to increase its bibliometric impact. The objective of this paper was to assess the influence of publication language, article type, number of authors, and year of publication on the citations received by papers published in Gaceta Sanitaria, a Spanish-language journal of public health. Methods: The information sources were the journal website and the Web of Knowledge, of the Institute of Scientific Information. The period analyzed was from 2007 to 2010. We included original articles, brief original articles, and reviews published within that period. We extracted manually information regarding the variables analyzed and we also differentiated among total citations and self-citations. We constructed logistic regression models to analyze the probability of a Gaceta Sanitaria paper to be cited or not, taking into account the aforementioned independent variables. We also analyzed the probability of receiving citations from non-Spanish authors. Results: Two hundred forty papers fulfilled the inclusion criteria. The included papers received a total of 287 citations, which became 202 when excluding self-citations. The only variable influencing the probability of being cited was the publication year. After excluding never cited papers, time since publication and review papers had the highest probabilities of being cited. Papers in English and review articles had a higher probability of citation from non-Spanish authors. Conclusions: Publication language has no influence on the citations received by a national, non-English journal. Reviews in English have the highest probability of citation from abroad. Editors should decide how to manage this information when deciding policies to raise the bibliometric impact factor of their journals
Duración de la profilaxis antibiótica en pacientes con bacteriuria asintomática, ¿evidencia o desconocimiento? (Duration of antibiotic prophylaxis in patients with asymptomatic bacteriuria: evidence or ignorance?)
No full textN/A
- …
