1,721,002 research outputs found
Has "D-Dimeritis" Worsened during the Coronavirus Disease 2019 Pandemic?
No full textBackground: This report describes how D-dimer testing pattern may have changed during the ongoing coronavirus disease 2019 (COVID-19) pandemic. Methods: Two independent analyses were conducted in this report. The first encompassed a digital search in Medline, using the keyword “D-dimer”, restricted to the past 40 years and with no language restriction. The second analysis was based on data provided by the management control unit of the University Hospital of Verona, concerning the number of D-dimer tests requested in the complete years 2019 (i.e., “pre-COVID-19”), 2021 and 2022 (i.e., “during COVID-19”). Results: The overall number of PubMed documents containing the word “D-dimer” has increased by 3.0-folds in 2020, 3.9-fold in 2021 and 3.1-fold in 2022 compared to the year 2019, respectively. Between 1992 and 2019 (i.e., pre-COVID-19), the increase was almost perfectly linear (r=0.989), while the linear fit was dramatically impaired after inclusion of the past three years. A good statistic power could be restored using a polynomial equation (r=0.941). The overall number of D-dimer tests requested at the local institution increased from 1885 in 2019, to 10449 in 2021 and 5803 in 2022, displaying a 5.5- (p=0.011) and 3.1-fold (p=0.027) increase. The surge was higher for COVID-19, intensive care and emergency medicine units, while the growth remained modest for all other hospital units. Conclusion: Clinicians have clear in mind that D-dimer is a key biomarker in COVID-19, but D-dimeritis may have been magnified by COVID-19
“Should I stay or Should I go”: patient who leave Emergency Department of an Italian Third-Level Teaching Hospital
No full textBackground and Aim: Patients could leave ED not receiving the desired care either Without Being Seen by a doctor (LWBS) or Against Medical Advice (DAMA). In term of care quality, LWBS may be related to inappropriate access and process of care, while DAMA may lead to increased risk of mortality and re-admissions. This study aims to identify frequency of patients who leave ED, determine their characteristics and identify associated factor. Methods: This was a retrospective observational study of patients that attended EDs of University Hospital Trust of Verona in 2017. Demographic and ED access associated variables were collected for LWBS, DAMA and completed-ED-treatment patients. Univariate and multivariate data analyses was based on EMUR-PS administrative data. Results: 5,901 of 127,180 ED accesses were uncompleted treatment (4.64%); LWBS were 4,664 (79.04%) and DAMA 1,237 (20.96%). Those who leave ED tended to be younger (39.35 vs. 45.56, p<0.01). Independent factors associated with ED leaving resulted: i) nonurgent triage category (OR: 2.941, 95%CI: 2.405-3.596) ii) non-Italian-nationality (OR: 1.695, 95%CI: 1.493-1.924) and requiring psychiatric consult (OR:6.16 95%IC 4.82-7.87); while protective factors resulted: i) female gender (OR: 0.713, 95%CI: 0.633-0.803); i) Paediatric ED (OR: 0.593, 95%CI: 0.437-0.805); ii) Obstetrics-Gynaecology ED (OR: 0.284, 95%CI: 0.193-0.416) iii) inclusion in fast track pathways (OR: 0.747, 95%CI: 0.602-0.927). Higher ED leaving rate were observed during night-time and Sunday, either overcrowding resulted not associated.Conclusion: Results show the necessity to implement primary care-ED integrated pathway, mainly in frail sub-population, improve awareness on healthcare service use and refine communication skills in ED-team
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
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
¿Cuán "nuevos" (y diversos) son los nuevos ingresantes? : Perfiles socioeconómicos y educativos de los estudiantes de Ciencias Agrarias y Forestales (UNLP)
Full text linkEsta ponencia se inscribe en una investigación más amplia que tiene por objeto comprender las trayectorias académicas y las formas de ser estudiantes que construyen los sujetos en relación con la cultura institucional y curricular de las carreras de Ingeniería de la Facultad de Ciencias Agrarias y Forestales de la Universidad Nacional de La Plata. Este trabajo se focaliza en la descripción de los perfiles socioeconómicos y educativos de los estudiantes del tramo inicial de las carreras (ingreso y primer año). Tanto las investigaciones del campo de la educación superior como las perspectivas de actores institucionales relevadas en pesquisas previas dan cuenta de la existencia de cambios en la composición de la matrícula de los estudiantes que ingresan a la universidad. Sin embargo, son escasas las indagaciones específicas de esta cuestión en el escenario institucional estudiado. Las principales fuentes serán los datos disponibles en el Sistema Preuniversitario de Ingreso y el SIU Guaraní, así como también información elaborada por el Observatorio Académico de la FCAyF.Fil: Carrera, María Cecilia. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.Fil: Alcoba, Julieta. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.Fil: Perilli, Valeria. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.Fil: Fava, Maximiliano. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.Fil: Montenegro, Jésica. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.Fil: Paso, Mónica. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.Fil: Garatte, Luciana. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina
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
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