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Introduction. 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. Problem Statement. 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. Purpose. Explore the network of collaborators research institutions of Ukraine workers with Nobel laureates in selected scientific fields. Materials and Methods. Created a list with Scopus ID Nobel laureates 1994-2018 in the fields of Physics, Chemistry, Medicine or Physiology. Using the Scopus database, selected publications of Nobel Prize winners, which were written in collaboration with scientists who worked in Ukrainian institutions. The number of these publications, their authors, the type, time of writing and the number of citations were determined. Results. The 31 publications were singled out, in which the Nobel laureates of 1994-2018 and employees of scientific institutions of Ukraine were co-authors. A total of 37 such authors from 14 scientific institutions have been identified. Conclusions. 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. Consequently, the system of relations of Ukrainian institutions with foreign scientific institutions, whose employees make an important contribution to scientific progress, is underdeveloped.

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.

The paper presents the results of bibliometric analysis of publications co-written by authors affiliated with Ukrainian and Russian institutions in 2007–2016, based on Scopus data. The survey results have showed that Ukrainian and Russian researchers continue carrying out joint research in major international projectsю However, a decrease in the number of works published by Ukrainian and Russian research institutions in 2016 has testified to an adverse impact of Russia’s military aggression on cooperation in the field of science. The findings are important for preparing the science development programs in Ukraine.