Producción Científica

 

 

Introduction: Alcohol’s effects on cardiovascular disease (CVD) are controversial. Alcohol industry actors have shown particular interest in this subject, and been extensively involved through research funding, and in other ways, generating concerns about bias, particularly in reviews. Material & methods: We conducted a co-authorship network analysis of the primary studies included within a previous co-authorship study of 60 systematic reviews on the impact of alcohol on CVD. Additionally, we examined the relationships between declared alcohol industry funding and network structure. Results: There were 713 unique primary studies with 2832 authors published between 1969 and 2019 located within 229 co-authorship subnetworks. There was industry funding across subnetworks and approximately 8% of all papers declared industry funding. The largest subnetwork dominated, comprising 43% of all authors, with sparse evidence of substantial industry funding. The second largest subnetwork contained approximately 4% of all authors, with largely different industry funders involved. Harvard affiliated authors who at the review level formed co-authorship subnetworks with industry funded authors were seen at the primary study level to belong to the largest epidemiological subnetwork. A small number of key authors make extensive alcohol industry funding declarations. Conclusions: There was no straightforward relationship between co-authorship network formation and alcohol industry funding of epidemiological studies on alcohol and CVD. More fine-grained attention to patterns of alcohol industry funding and to key nodes may shed further light on how far industry funding may be responsible for conflicting findings on alcohol and CVD.

 

 

Background: In the last five years, there has been an accelerated growth in the scientific production about Artificial Intelligence and Healthcare by Scholars of the most diverse disciplines. Recently, the scientific corpus has been enriched with considerable literature reviews ranging from the overview of large collections of scientific documents to the recognition of the state of knowledge on specific aspects (e.g., in the medical field, ophthalmology, cardiology, nephrology, etc.). Methods: The methodological approaches belong to the scientific fields of bibliometrics and topic modeling. Following a bibliometric analysis of the literature on the subject, conducted on a vast collection of scientific contributions, we also searched for the “latent” themes in the semantic structures of these documents, identified the relationships between them and recognized the most likely to be investigated in the future. Results: Results show 24 topics about future trends in literature review connecting the field of AI and Healthcare. Conclusions: This bibliometric review of the literature on artificial intelligence and healthcare allows identifying of some privileged areas of attention by scholars of different disciplines. However, it also reveals the limits of hard clustering techniques, as demonstrated by the presence of some keywords in several groups. The numerous existing reviews must be integrated by reviews based on Topic Modeling techniques, which make it possible to identify topics, historical trends (classical and emerging topics), associations between the documents and to predict, on a probabilistic basis, which scientific fields will be most likely to see development in the future.

 

 

Background: Cluster analysis is vital in bibliometrics for deciphering large sets of academic data. However, no prior research has employed a cluster-pattern algorithm to assess the similarities and differences between 2 clusters in networks. The study goals are 2-fold: to create a cluster-pattern comparison algorithm tailored for bibliometric analysis and to apply this algorithm in presenting clusters of countries, institutes, departments, authors (CIDA), and keywords on journal articles during and after COVID-19. Methods: We analyzed 9499 and 5943 articles from the Journal of Medicine (Baltimore) during and after COVID-19 in 2020 to 2021 and 2022 to 2023, sourced from the Web of Science (WoS) Core Collection. Follower-leading clustering algorithm (FLCA) was compared to other 8 counterparts in cluster validation and effectiveness and a cluster-pattern-comparison algorithm (CPCA) was developed using the similarity coefficient, collaborative maps, and thematic maps to evaluate CIDA cluster patterns. The similarity coefficients were categorized as identical, similar, dissimilar, or different for values above 0.7, between 0.5 and 0.7, between 0.3 and 0.5, and below 0.3, respectively. Results: Both stages displayed similar trends in annual publications and average citations, although these trends are decreasing. The peak publication year was 2020. Similarity coefficients of cluster patterns in these 2 stages for CIDA entities and keywords were 0.73, 0.35, 0.80, 0.02, and 0.83, respectively, suggesting the existence of identical patterns (>0.70) in countries, departments, and keywords plus, but dissimilar (<0.5) and different patterns (<0.3) found in institutes and 1st and corresponding authors, during and after COVID-19. Conclusions: This research effectively created and utilized CPCA to analyze cluster patterns in bibliometrics. It underscores notable identical patterns in country-/department-/keyword based clusters, but dissimilar and different in institute-/author- based clusters, between these 2 stages during and after COVID-19, offering a framework for future bibliographic studies to compare cluster patterns beyond just the CIDA entities, as demonstrated in this study.

 

 

Importance: Scientific publication is an important tool for knowledge dissemination and career advancement, but authors affiliated with institutions in low- and middle-income countries (LMICs) are historically underrepresented on publications. Objective: To assess the country income level distribution of author affiliations for publications resulting from National Cancer Institute (NCI)–supported extramural grants between 2015 and 2019, with international collaborating institutions exclusively in 1 or more LMICs. Design and Setting: This cross-sectional study assessed authorship on publications resulting from NCI-funded grants between October 1, 2015, and September 30, 2019. Grants with collaborators in LMICs were identified in the National Institutes of Health (NIH) Query/View/Report and linked to publications using Dimensions for NIH, published between 2011 and 2020. Statistical analysis was performed from May 2021 to July 2022. Main Outcomes and Measures: Author institutional affiliation was used to classify author country and related income level as defined by the World Bank. Relative citation ratio and Altmetric data from Dimensions for NIH were used to compare citation impact measures using the Wilcoxon rank sum test. Results: In this cross-sectional study, 159 grants were awarded to US institutions with collaborators in LMICs, and 5 grants were awarded directly to foreign institutions. These 164 grants resulted in 2428 publications, of which 1242 (51%) did not include any authors affiliated with an institution in an LMIC. In addition, 1884 (78%) and 2009 (83%) publications had a first or last author, respectively, affiliated with a high-income country (HIC). Publications with HIC-affiliated last authors also demonstrated greater citation impact compared with publications with LMIC-affiliated last authors as measured by relative citation ratios and Altmetric Attention Scores; publications with HIC-affiliated first authors also had higher Altmetric Attention Scores. Conclusions and Relevance: This cross-sectional study suggests that LMIC-affiliated authors were underrepresented on publications resulting from NCI-funded grants involving LMICs. It is critical to promote equitable scientific participation by LMIC institutions in cancer research, including through current and planned programs led by the NCI.

 

 

Uno de los principales desafíos de las instituciones públicas de ciencia y tecnología radica en alinear las actividades y resultados de la investigación con la agenda de I+D y los lineamientos estratégicos definidos institucionalmente. Dentro de los factores que definen este alineamiento se encuentran las publicaciones científicas, consideradas incluso en muchos casos como el principal producto de las actividades de investigación. En el caso del Instituto Nacional de Investigación Agropecuaria (INIA) de Uruguay se definió como política institucional el mejorar los indicadores de cantidad y calidad de publicaciones científicas arbitradas. Para cumplir este objetivo se definieron diferentes acciones a implementar. Con el objetivo de monitorear los resultados de estas se realizó un estudio bibliométrico de las publicaciones del INIA en el período 2011-2022. El artículo que aquí se propone presenta los resultados obtenidos, permitiendo la discusión acerca de la pertinencia estratégica, la evolución, la conformación de grupos de trabajo y las vinculaciones institucionales en relación con la publicación de artículos científicos. Este tipo de análisis contribuye a la revisión continua de la estrategia institucional de forma ágil, dinámica y eficiente.

 

 

Accounting information systems (AIS) are closely connected with using automated accounting data processing technologies, which increase reliability and prompt information delivery to stakeholders for management decision-making. The purpose of the article is to provide the AIS research domain with an additional impetus for further development based on a comprehensive characterization of quantitative parameters and systematic rethinking of trends in the evolution of the scientific themes. The article contains the methods of bibliometric analysis and chronological literature review based on clustering of keywords from a sample of AIS research indexed in Scopus in 1973–2023. The key findings indicate the nicheness of the AIS research problems, due to which the evaluation of the scientific output requires a multifaceted approach. It is found out which countries, journals, articles and authors play a decisive role in the formation of trends in the AIS research domain. Author keywords are used to assess the content orientation of the AIS research themes and to identify patterns of its evolution. We conclude that there is a content exhaustion in AIS scientific problems and the need to find new objects of research that correspond to the trends of Industry 4.0.

 

 

Journal of management & organization (JMO), which started its publication life in 1995, publishes scientific studies in the field of management and organization. This research aims to make a bibliometric analysis of 780 documents published since 2007 when JMO first started indexing in WoS. Research data were taken from the Web of Science database in plaintext format. The journal’s conceptual, intellectual, and social structure was revealed by applying techniques such as co-citation, co-authoring, and co-creation through the Vosviewer software. When the research results are examined, it is seen that there is an increasing trend in the number of citations after 2007, when JMO started to be indexed in the WoS database. Research findings show that 1516 authors contributed to the JMO, with “Tui Mckeown” being the most prolific author with fifteen documents. A total of 651 universities contributed to the JMO during the period under review. The top contributing university is Griffth University, with 38 papers. The country that has contributed the most to the JMO since 2007 is Australia, with 241 documents. “Leadership” is the most used keyword in the journal. “Academy of Management Journal” is the most used journal in the documents sent to the journal. The fact that the journal does not comply with Lotka’s law and the studies with multiple authors are more than single studies means that the cooperation between the authors is strong.

 

 

Measuring the impact of a publication in a fair way is a significant challenge in bibliometrics, as it must not introduce biases between fields and should enable comparison of the impact of publications from different years. In this paper, we propose a Bayesian approach to tackle this problem, motivated by empirical data demonstrating heterogeneity in citation distributions. The approach uses the a priori distribution of citations in each field to estimate the expected a posteriori distribution in that field. This distribution is then employed to normalize the citations received by a publication in that field. Our main contribution is the Bayesian Impact Score, a measure of the impact of a publication. This score is increasing and concave with the number of citations received and decreasing and convex with the age of the publication. This means that the marginal score of an additional citation decreases as the cumulative number of citations increases and increases as the time since publication of the document grows. Finally, we present an empirical application of our approach in eight subject categories using the Scopus database and a comparison with the normalized impact indicator Field Citation Ratio from the Dimensions AI database.

 

 

Citation rankings have emerged as a popular approach to ranking the scholarly impact of law faculties. This paper develops a statistical approach for inferring faculty quality from citation counts and determining when differences among law schools are significant. Statistical tests demonstrate that the distribution of citations within faculties closely follows the lognormal distribution, subject to small adjustments. This suggests a simple test for comparing faculties: whether they could be drawn from lognormal distributions with the same log mean. Under this approach, the geometric mean of citations is the most efficient measure for summarizing faculty quality. Using citation data collected from HeinOnline, this article provides a citation ranking for 195 law schools in the United States. Most differences between peer schools are statistically insignificant, and confidence intervals on citation ranks are extremely wide. Except for the highest-ranked faculties, citation rankings provide little information on the relative quality of faculties.

 

 

This paper measures two main inefficiency features (many publications other than articles; many co-authors’ reciprocal citations) and two main inequity features (more co-authors in some disciplines; more citations for authors with more experience). It constructs a representative dataset based on a cross-disciplinary balanced sample (10,000 authors with at least one publication indexed in Scopus from 2006 to 2015). It estimates to what extent four additional improvements of the H-index as top-down regulations (∆Hh = Hh − Hh+1 from H1 = based on publications to H5 = net per-capita per-year based on articles) account for inefficiency and inequity across twenty-five disciplines and four subjects. Linear regressions and ANOVA results show that the single improvements of the H-index considerably and decreasingly explain the inefficiency and inequity features but make these vaguely comparable across disciplines and subjects, while the overall improvement of the H-index (H1–H5) marginally explains these features but make disciplines and subjects clearly comparable, to a greater extent across subjects than disciplines. Fitting a Gamma distribution to H5 for each discipline and subject by maximum likelihood shows that the estimated probability densities and the percentages of authors characterised by H5 ≥ 1 to H5 ≥ 3 are different across disciplines but similar across subjects.