The present study is focused on several species from the genus Astragalus L. with the aim to clarify the taxonomic status of Ukrainian local endemic species Astragalus borysthenicus Klokov, which is sometimes considered a synonym to A. onobrychis L. In this study, the morphological features, current taxonomy, taxonomical history, and phylogenetic analysis based on rDNA Bayesian inference, as well as comparative analysis of ITS1 and ITS2 secondary structures, were investigated. It was found that A. borysthenicus is distant from A. onobrychis according to phylogenetic analysis. Moreover, A. borysthenicus has differences from the investigated taxa in its secondary structures of ITS1 and ITS2 transcripts. These data suggest that A. borysthenicus should be treated as a separate species rather than a synonym to A. onobrychis.

The purpose of this article was to determine the dependence of the values of the boundary of the fire resistance of the bearing walls on the temperature dispersion on their heating surfaces as a scientific basis for improving the efficiency of the evaluation of the results of fire tests. In this paper, the problem of strength was determined to determine the bearing capacity of a reinforced concrete wall in a fire. During work, computational experiments using CFD and the finite element method were used. As a result of the studies, the dependence of the design values of the fire resistance of the reinforced concrete wall on the value of the maximum temperature dispersion on the heating surface of the structure during the fire tests and the error of the definition of the fire resistance limit was obtained, as well as the recommendations for creating new and improving existing furnace chambers from the tests on the fire resistance of the vertical reinforced concrete building constructions.

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The article focuses on the work of the Living Ukrainian Dictionary Commission in the case through the prism of the case ULU (the Union of Liberation of Ukraine), through personalities of authors of Dictionary as participants of the process. Exactly this academic group in the Institute of Ukrainian Scientific Language Science Academy of Ukrainе was «appointed» as the center of ULU in the Academy, and Serhii Yefremov — as the head of the «hostile» organization. In the context of research of the RUD it is expedient to study lingual and linguistic, extralingual and extralinguistic factors, the conditions in which the national identity of the Ukrainian lexicography of the early twentieth century was formed. In the declassified archives of the Security Service of Ukraine, materials of the process of ULU are stored, among which there are cases of three members of the Living Ukrainian Dictionary Commission: H. Holoskevych, A. Nikovskiy, V. Hantsov and S. Yefremov. This article will discuss the Living Ukrainian Dictionary Commission through the prism of the case Serhii Yefremov. It was found out that the tasks of the Commission formulated by S. Yefremov — the national direction of scientific activity, involvement of skilled workers, formation of the Ukrainian scientific terminology on a specific basis — in cases were qualified as political activity of ULU. It was once again confirmed: to be an enemy to the Soviet power, it was enough merely to love nation and have the dignity to work for her self-affirmation. To the 100-th anniversary of the beginning of work on the academic «Russian- Ukrainian dictionary» edited by А. Crimskiy and S. Yefremov 1924–1933 (RUD).

In the article, the lexical material relevant to the renewal of Ukrainian identity in the context of the decolonization of the humanitarian sphere of Ukraine is introduced into scientific circulation — a fragment of the Zvenyhorod Card Index by A. Krymskyi (ZСІ). We consider these materials as a linguistic source as part of the Archival Card Index and an element of the source base of the “Russian-Ukrainian Dictionary” ed. by A. Krymskyi and S. Yefremov (1924–1933). The article examines the problem of linguistic identity. For objective substantiation of the facts its author relies on theoretical literature and two types of linguistic sources: the primary (living language, literary texts in oral and written forms) and the secondary (dictionaries, dictionary materials). The article aims to analyse the titles of ZCI by A. Krymskyi in the context of language processes. The subject of the research is the title element of the ZСІ card. Using the method of structural analysis and description, its design features were determined. The novelty of the work is the analysis of additional units (DO) in the title part; the characteristics of title units (semantic, grammatical, etymological, stylistic). As a result of the study, it was found that the structure of the title element consists of the actual title word and its translated equivalent; additional units can be given to one or both heading words: a word variant of the same part of speech; an adjectival form of the title verb; descriptive construction (as a title or as an additional unit), a combined additional element (both a word and a descriptive construction); characteristics of the title word: semantic — containing clarifications regarding the object or subject of the action, signs, method of action; grammatical — the conjugation of the title word, its grammatical meaning; accentuation — additionally informing about the accent. Etymological, spelling and stylistic comments are rare. This structuring of the title element is an intermediate stage between the collection of field material (living language) and the compilation of a dictionary article. Prospects for further study consist in the analysis of thes variants of the title word (within the micro- and macrostructure of the ZСІ).