Search Results (4)

The present research aims to describe how turkey meat and carcass quality traits define the interest of the scientific community through the quality standards of journals in which studies are published. To this end, an analysis of 92 research documents addressing the study of turkey carcass and meat quality over the last 57 years was performed. Meat and carcass quality attributes were dependent variables and included traits related to carcass dressing, muscle fiber, pH, colorimetry, water-holding capacity, texture, and chemical composition. The independent variables comprised publication quality traits, including journal indexation, database, journal impact factor (JIF), quartile, publication area, and JIF percentage. For each dependent variable, a data-mining chi-squared automatic interaction detection (CHAID) decision tree was developed. Carcass or piece yield was the only variable that did not show an impact on the publication quality. Moreover, color and pH measurements taken at 72 h postmortem showed a negative impact on publication interest. On the other hand, variables including water-retaining attributes, colorimetry, pH, chemical composition, and shear force traits stood out among the quality-enhancing variables due to their low inclusion in papers, while high standards improved power. Full article

Universities have undergone a profound transformation to increase their competitiveness and research performance; evaluating their research output and scientific impact is therefore of great importance. This article aims to suggest an approach to analyze how the JIF quartile share of research articles differs among European universities in medical science, and how the byline positions of affiliated and non-affiliated authors can influence an article’s scientific impact. We examined the research output of universities in the Top 5 European and Visegrad Group Countries based on the Times Higher Education (THE) World University Ranking 2022 (University of Oxford, ETH Zurich, Karolinska Institute, Charité—Universitätsmedizin Berlin, KU Leuven, Semmelweis University, Jagiellonian University, Charles University Prague, and Comenius University Bratislava). We found that the share of Q1 and the less prestigious Q3 and Q4 papers are inversely proportional when plotted against the ranks of universities. Whilst the proportion of Q1 papers is higher for the Top 5 universities, this ratio decreases with a less prominent place in the ranking. The presence of non-affiliated authors in the first, last, and corresponding author byline positions has a significantly positive effect on the Category Normalized Citation Impact, correlating with the position of the university in the ranking. Moreover, the difference in the Category Normalized Citation Impact between papers with affiliated and non-affiliated authors is also specific to university rank. Full article

Several strategies are used by researchers and research facilities to increase their scientific production and consequent research quality. Bibliometric records show that coauthorship and the number of participating organizations in research publications are steadily increasing; however, the effect of collaboration varies across disciplines, and the corresponding author’s country appears to influence research impact. This finding inspired our research question for this study: How does international cooperation affect scientific impact, and does the affiliation of corresponding authors influence citation impact indicators at the level of individual publications? To this end, we provide a comparative evaluation of research articles published in Q1 journals among Visegrad Group countries (Czech Republic, Hungary, Poland and Slovakia) in Medical and Health sciences between 2017 and 2021. The study investigates the relationship between collaboration type (national vs. international) and scientific impact (impact factor of the journal and category normalized citation impact or research papers), as well as the impact of the country of the corresponding author’s affiliation on quantitative quality of individual papers. We show that Q1 research papers in international collaboration have a higher scientific impact than papers published in national partnerships. Moreover, the corresponding authors’ country of affiliation significantly affects scientific impact. Full article

Journal self-citations may be increased artificially to inflate a journal’s scientometric indicators. The aim of this study was to identify possible mechanisms of change in a cohort of journals that rose from the fourth (Q4) to the first quartile (Q1) over six years or less in Journal Citation Reports (JCR), and the role of journal self-citations in these changes. A total of 51 different journals sampled from all JCR Science Citation Index (SCI) subject categories improved their rank position from Q4 in 2009 to Q1 in any year from 2010 to 2015. I identified changes in the numerator or denominator of the Journal Impact Factor (JIF) that were involved in each year-to-year transition. The main mechanism of change was the increase in the number of citations used to compute the JIF. The effect of journal self-citations in the increase of the JIF was studied. The main conclusion is that there was no evidence of widespread JIF manipulation through the overuse of journal self-citations. Full article