arXiv subjects

Serhii Nazarovets

Publications and source records attributed to Serhii Nazarovets.

13 recordsLinked to original sources

arXiv2025

APC waivers and Ukraine's publishing output in Gold OA journals: Evidence from five commercial publishers

This study examines the effect of article processing charge (APC) waivers on the participation of Ukrainian researchers in fully Gold Open Access (Gold OA) journals published by the five largest academic publishers - Elsevier, SAGE, Springer Nature, Taylor & Francis, and Wiley - during the period 2019-2024. These publishers were selected because, in response to the full-scale war launched against Ukraine in 2022, all five introduced emergency 100% APC-waiver policies for Ukrainian authors. Using bibliometric data from the Web of Science Core Collection, the study analyses publication trends in Ukrainian-authored articles in fully Gold OA journals of these publishers before and after 2022. The results show a marked post-2022 increase in Ukraine's Gold OA output, particularly in journals published by Springer Nature and Elsevier. Disciplinary and publisher-specific patterns are evident, with especially strong growth in the medical and applied sciences. The findings underscore the potential of targeted support measures during times of crisis, while also illustrating the inherent limitations of APC-based publishing models in fostering equitable scholarly communication.

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arXiv2024

The publication activity and migration trends of Ukrainian scientists in the social sciences and humanities during the first two years of the Russo-Ukrainian war

This study analyses the publication activity and migration patterns of Ukrainian scholars in the social sciences and humanities (SSH) during the initial two years of the Russo-Ukrainian war. Focusing on scholars who published at least three papers, the study underscores the resilience of these scholars, who continued their academic endeavours within their homeland despite the conflict. The research utilizes data from the Social Sciences Citation Index (SSCI) and the Arts & Humanities Citation Index (AHCI) to illustrate their continued scientific contributions under adverse conditions. It also highlights the crucial role of international collaboration in supporting Ukrainian SSH research, emphasizing that such collaborations primarily manifest through joint research projects rather than relocation of scholars to foreign institutions.

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arXiv2024

Twitter should now be referred to as X: How academics, journals and publishers need to make the nomenclatural transition

Here, we note how academics, journals and publishers should no longer refer to the social media platform Twitter as such, rather as X. Relying on Google Scholar, we found 16 examples of papers published in the last months of 2023 - essentially during the transition period between Twitter and X - that used Twitter and X, but in different ways. Unlike that transition period in which the binary Twitter/X could have been used in academic papers, we suggest that papers should no longer refer to Twitter as Twitter, but only as X, except for historical studies about that social media platform, because such use would be factually incorrect.

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arXiv2024

(Non-)retracted academic papers in OpenAlex

The proliferation of scholarly publications underscores the necessity for reliable tools to navigate scientific literature. OpenAlex, an emerging platform amalgamating data from diverse academic sources, holds promise in meeting these evolving demands. Nonetheless, our investigation uncovered a flaw in OpenAlex's portrayal of publication status, particularly concerning retractions. Despite accurate metadata sourced from Crossref database, OpenAlex consolidated this information into a single boolean field, "is_retracted," leading to misclassifications of papers. This challenge not only impacts OpenAlex users but also extends to users of other academic resources integrating the OpenAlex API. The issue affects data provided by OpenAlex in the period between 22 Dec 2023 and 19 Mar 2024. Anyone using data from this period should urgently check it and replace it if necessary.

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arXiv2024

Visualization of rank-citation curves for fast detection of h-index anomalies in university metrics

University rankings, despite facing criticism, continue to maintain their popularity. In the 2023 Scopus Ranking of Ukrainian Universities, certain institutions stood out due to their high h-index, despite modest publication and citation numbers. This phenomenon can be attributed to influential research topics or involvement in international collaborative research. However, these results may also be due to the authors' own efforts to increase the number of citations of their publications in order to improve their h-index. To investigate this, the publications from the top 30 universities in the ranking were analysed, revealing humpback rank-citation curves for two universities. These humpbacks indicate unusual trends in the citation data, especially considering the high percentage of self-citations and FWCI of analysed papers. While quantitative analysis has limitations, the combination of humped rank-citation curves, self-citations, FWCI, and previous research findings raises concerns about the possible causes of these anomalies in the citation data of the analysed universities. The method presented in this paper can aid ranking compilers and citation databases managers in identifying potential instances of citation data anomalies, emphasizing the importance of expert assessment for accurate conclusions.

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arXiv2023

Ukrainian Arts and Humanities research in Scopus: A Bibliometric Analysis

This article presents the results of a quantitative analysis of Ukrainian Arts and Humanities (A&H) research from 2012 to 2021, as observed in Scopus. The overall publication activity and the relative share of A&H publications in relation to Ukraine's total research output, comparing them with other countries. The study analyzes the diversity and total number of sources, as well as the geographic distribution of authors and citing authors, to provide insights into the internationalization level of Ukrainian A&H research. Additionally, the topical spectrum and language usage are considered to complete the overall picture. According to our results, the publication patterns for Ukrainian A&H research exhibit dynamics comparable to those of other countries, with a gradual increase in the total number of papers and sources. However, the citedness is lower than expected, and the share of publications in top-quartile sources is lower for 2020-2021 period compared to the previous years. The impact of internationally collaborative papers, especially those in English, is higher. Nevertheless, over half of all works remain uncited, probably due to the limited readership of the journals selected for publication.

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arXiv2022

Analysis of publications by authors of Ukrainian institutes in Scopus-delisted titles

In Ukraine, Scopus data are used to evaluate academics. Existing shortcomings in the Ukrainian evaluation system allow them to publish in titles that have been delisted from Scopus, and continue to use those papers as credible research output for evaluation. The purpose of this study was to analyse the publishing activity of Ukrainian institutions in Scopus-delisted titles (as of September 2021) in different fields between 2011 and 2020 and to attempt to appreciate how common this practice is among Ukrainian authors. Scopus was sourced to collect bibliographic and citations-related data, while SciVal was used to analyse these data. The findings suggest that for 17 Ukrainian institutions, papers from titles that have been delisted from Scopus still play an important part of the publication achievement of their employees. In particular, in the field of economics, econometrics and finance, 46.92% of Ukrainian papers were published in a title that was excluded from Scopus. Moreover, the analysis indicated that in two Ukrainian institutions, the level of citation of such papers significantly exceeds the average number of citations to Scopus-indexed papers in the same year and in the same field. Given that bibliometric indicators are also used for research assessment in other Eastern European countries, the results of this paper are applicable to a wider geographic context.

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arXiv2020

Quantitative analysis of the co-publications of Ukrainian scientists with the Nobel laureates 1994-2018 in Science

The Nobel Prize is awarded annually for outstanding scientific discoveries and inventions. Most scientific papers today are co-authored by a large number of researchers. However, very few scientists can receive the Nobel Prize according to the Statutes of the Nobel Foundation. An analysis of the co-authorship of the Nobel laureates will make it possible to identify employees of Ukrainian institutions who have collaborated with leading scientists of the world, whose scientific works were noted by Nobel. For the development of science in Ukraine it is important to study the successful experience of cooperation of domestic research institutions with leading world scientists and research centers, because international scientific collaboration facilitates the process of acquiring new knowledge, promotes mutual enrichment of ideas, efficient use of resources and expands opportunities for further use of research results. Using the Scopus database, selected publications of Nobel Prize winners, which were written in collaboration with scientists who worked in Ukrainian institutions. The data obtained indicate that the employees of scientific institutions of Ukraine published very few papers in collaborations with Nobel Prize winners of 1994-2018 in comparison with employees of institutions in leading countries in publishing activity.

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arXiv2019

Plan S. Pardon impossible to execute

The Plan S initiative is expected to radically change the market of scholarly periodicals, resulting in the abandoning of the subscription model in favour of the open access model. This transition poses new challenges, as well as sets new tasks for researchers, managers, librarians and scientific publishers, particularly in countries with transforming economies. In this study, we set out to estimate approximate costs and future prospects associated with the transition of Belarus and Ukraine towards open access to scientific information on the example of publications by researchers from these two countries in Elsevier journals. To this end, we accessed the Scopus database and selected all papers affiliated with Belarus and Ukraine published by Elsevier journals in 2018. Subsequently, we established which of these articles indicated a corresponding author from Ukraine or Belarus, as well as collected journal titles, correspondence addresses, access types and the APC fee for each article. In addition, funding sources were established for each open access article. This allowed us to determine the total amount of money that Ukraine and Belarus would have needed to pay so that all the articles of their researchers, which were published in Elsevier journals in 2018, were available in an open-access form. The obtained results show that Belarus and Ukraine are currently under-investing in the support of scientific publications and subscription to scientific resources, which is necessary for making a transition to the model of open access to scientific literature. The proposed method for calculating the expenses of publishing papers written by researchers from a given country in open access can be used in the preparation of transformative agreements with developing countries.

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arXiv2018

Black Open Access in Ukraine: Analysis of Downloading Sci-Hub Publications by Ukrainian Internet Users

Introduction. High subscription fees to scholarly research journals provoke researchers to use illegal channels of access to scientific information. Analysis of statistical data on downloads of scholarly research papers by Ukrainian Internet users from illegal web resource can help to define gaps in information provision at the institutional or the state level for each scientific field. Problem Statement. To conduct an analysis of behavior and geography of downloads of scholarly research publications from illegal web resource Sci-Hub by Ukrainian Internet users within the period from September 1, 2015 to February 29, 2016. Purpose. To assess the information needs of Ukrainian researchers who download scientific papers from Sci-Hub. Materials and Methods. The used file is available at public domain and contains complete data of downloads of scholarly research articles from Sci-Hub for the period from September 1, 2015 to February 29, 2016. Inquiries of users with Ukrainian IP-addresses have been selected. Using DOI of downloaded articles enables finding the publishers and journal brands with the help of CrossRef API, whereas using the All Science Journal Classification (ASJC) codes makes it possible to identify the subject. Results. The study has shown that the most documents downloaded related to natural sciences (primarily, chemistry, physics, and astronomy), with Elsevier publications being the most frequently inquired by Ukrainian users of Sci-Hub and Internet users from Kyiv downloading the papers most actively. Conclusion. The obtained data are important for understanding the information needs of Ukrainian researchers and can be used to formulate an optimal subscription policy for providing access to information resources at Ukrainian R&D institutions.

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arXiv2018

Highly Cited Papers of Ukrainian Scientists Written in Collaboration: A Bibliometric Analysis (2011-2015)

The paper presents the results of the study of international and national cooperation of Ukrainian scientists from different scientific fields using citation analysis data from Scopus in the period of 2011-2015. The results show that during the period under study, the number of documents of highly cited Ukrainian scientists that have received enough citations to be included to the top 1%, 5% and 10% most cited documents in the world, evidenced an increase and were significantly different in different subjects areas. Papers written by a group of co-authors predominate among highly cited documents of Ukrainian scientists. Consequently, international cooperation plays an important role in Ukrainian scientists research results visibility and impact. At the same time, up to 16%-27% highly cited articles of Ukrainian scientists have been written without partnering with foreign colleagues, that means a significant part of important scientific results in Ukraine are carried out by oneself. Therefore, for generating an optimal policy of science development in Ukraine it is important to provide a balanced view of the expectations of the results of the international cooperation of Ukrainian scientists and achieving a required balance between the inter-country and international collaboration.

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arXiv2017

War and Peace: The Peculiarities of Ukrainian-Russian Scientific Cooperation Dynamics Against the Background of Russian Military Aggression in Ukraine, in 2014-2016

The paper presents the results of bibliometric analysis of publications that were co-written by authors affiliated with Ukrainian and Russian institutions in 2007-2016 according to Scopus. Results of the study show that Ukrainian and Russian scientists have not refused to carry out joint research in major international projects, but a decrease in the number of works, written by Ukrainian and Russian scientific institutions staff members in 2016, provides evidence on the threat and negative impact the Russian military intervention brings to cooperation in science. The findings are important for generating the science development programs in Ukraine.

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arXiv2017

Evaluation of research activities of universities of Ukraine and Belarus: a set of bibliometric indicators and its implementation

Monitoring bibliometric indicators of University rankings is considered as a subject of a University library activity. In order to fulfill comparative assessment of research activities of the universities of Ukraine and Belarus the authors introduced a set of bibliometric indicators. A comparative assessment of the research activities of corresponding universities was fulfilled; the data on the leading universities are presented. The sensitivity of the one of the indicators to rapid changes of the research activity of universities and the fact that the other one is normalized across the fields of science condition advantage of the proposed set over the one that was used in practice of the corresponding national rankings.

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