Infectious diseases in the modern world pose a significant threat to humanity in the form of epidemics and pandemics. To prevent and combat them, it is necessary to carry out antiseptic and disinfectant treatments of various environments, household and industrial surfaces, as well as wounds of various origins. Double-layer hydroxides intercalated with peroxyanions as active oxygen compounds are promising materials for this. In order to determine the possibility of obtaining Zn-Al double-layer hydroxide intercalated with peroxylactic acid anions, samples were synthesized by the method of chemical co-precipitation in the presence of peroxylactic acid at controlled pH (8, 10) and t=20 ℃. The properties of the synthesized samples were investigated. The content of active oxygen (in terms of H2O2) was determined by the method of iodometric titration with the calculation of the percentage of hydrogen peroxide that was intercalated in double layered hydroxides, remained in the mother solution or was lost. The crystal structure was studied by X-ray phase analysis, the yield of samples was determined gravimetrically, and sedimentation was determined by measuring and normalizing the thickness of the sediment layer. It was found that the samples synthesized at pH=8 and 10 are biphasic and consist of an oxide phase and a double-layer hydroxide phase. The determined content of active oxygen (in terms of H2O2) in the samples synthesized at pH=8 (0.533 %) and at pH=10 (0.876 %) confirms the success of the synthesis of Zn-Al-peroxylactate double layered hydroxides. Synthesis at elevated pH is promising. A low percentage of H2O2 intercalation was revealed – 4.03–6.54 %, the majority of hydrogen peroxide (82.36-94.44 %) remains in the mother solution. The yield of the synthesized samples was determined to be 61.9 % and 79.5 % at synthesis pH of 10 and 8, respectively. The sedimentation properties of the samples were studied and their improvement was shown when the pH of the synthesis was increased

AbstractThis correspondence introduces several distinct current efforts by Ukrainian psychoanalytic practitioners and researchers from various clinical, scholarly, and applied fields to support the sustainable development of psychoanalytic training and work in the context of the ongoing 2022 Russian invasion of Ukraine. Among these developments are (a) the translation of the classic and contemporary psychoanalytic texts into the Ukrainian language, (b) the promotion of Ukrainian psychoanalytic contributions within Ukraine and abroad, and (c) the support of psychoanalysis and psychoanalytic psychotherapy as an evidence‐based practice to be officially recognized in Ukraine. The initiatives were integrated with the launch of a scholarly peer‐reviewed online open‐access journal—the Ukrainian Psychoanalytic Journal—which has been confirmed by the Ukrainian Ministry of Education and Science as a scientific periodical. In addition to describing these initiatives, this contribution serves as an invitation to international psychoanalytic audiences to contribute to these processes, including via workshops on psychoanalytic writing and publication, joint panel discussions, or collaborative research projects with Ukrainian psychoanalytic professionals. We also welcome submissions of original previously published (with copyright permission) or unpublished papers to be translated and published in the Ukrainian language.

Purpose. To investigate the anthropogenic communication of the Cherkasy oblast as an ecosystem-forming component of the modern landscape structure of the area of research. Research materials and methods. Methods. On the principle of natural-anthropogenic coexistence general scientific and specific scientific research methods were applied. Results. The peculiarities of natural conditions and natural resources are determined by the geographical location within the borders of the Dniester-Dnieper and Left Bank-Dnieper forest-steppe regions of the East European plain country. The class of road landscapes of the study area is formed by the following types of roads, namely: automobile, dirt, forest and field roads, railways. In the landscape structure of Zvenyhorod district, the length of highways, unpaved roads, field and forest roads, railways. Uman district and Cherkasy district have the highest index of connectivity in terms of road length. The lowest indicators of the index of communication in terms of the length of highways in Zolotoniskyi district. Uman district has the highest index of communication in terms of the length of dirt roads, and Zvenigorodsky district has the lowest. Zolotoniskyi district and Cherkasy district have the highest index of communication in terms of the length of field and forest roads. The lowest indicator is Zvenigorodsky district, Uman district. Cherkasy district has the highest communication index in terms of railway length and Zvenigorodsky district has the lowest. Conclusions. The Zolotonisky district of Cherkasy region has the highest index of general anthropogenic communicability, i.e. it has the highest degree of anthropogenic transformation of the territory and anthropogenic load

This paper introduces the Proceedings of the XV International Conference on Mathematics, Science and Technology Education (ICon-MaSTEd 2023), which took place at the Kryvyi Rih State Pedagogical University, Ukraine, from 17 to 19 May 2023. It provides background information and the organizational structure of the conference, as well as the structure of the proceedings. It also acknowledges the many people who contributed to the success of the conference.

Knowledge about current state of the trees in urban areas may be important for foresting and green planting of city landscapes and for improving environmental quality in these areas. The object of this study were to screen a range of morphometric, physiological and biochemical parameters among species of the genus spruce (Picea A. Dietr.) in urban areas of Kryvyi Rih City and to assess the ecological adaptations among species of the genus spruce (Picea A. Dietr.) along an environmental gradient in urban areas of Kryvyi Rih City. During 2017-2021, the 7 research plots in Kryvyi Rih City urban areas along an environmental gradient (low, moderate and high levels of the environmental impact) and 1 research plot in the background area (control) were established. The 30–40-year-old trees of indigenous spruce species (Norway spruce (Picea abies (L.) Karst.)) and non-native spruce species (Colorado blue spruce (Picea pungens var. ‘Glauca’)) were investigated. The morphometric characteristics of trees, vitality of trees and chlorophyll a, chlorophyll b content in needles were studied. The results showed that in background area the tree height (14.5-15.1 m and 11.7-12.5 m for Norway spruce and Colorado blue spruce), diameter at breast height (25.3-28.1 cm and 24.6-27.2 for Norway spruce and Colorado blue spruce), chlorophyll a content (0.75-1.04 mg/g of wet weight and 0.96-1.24 mg/g of wet weight for Norway spruce and Colorado blue spruce) and chlorophyll b content (0.33-0.41 mg/g of wet weight and 0.42-0.50 mg/g of wet weight for Norway spruce and Colorado blue spruce) were typical of mature 30-40-year-old spruce trees. In Kryvyi Rih City urban areas the ecological stress along an environmental gradient decreased the values of growth, vitalyty and photosynthetic activity of the trees by 15-50%. Colorado blue spruce trees (non-native species) exhibit greater ecological tolerance and ecological adaptations than Norway spruce trees (indigenous species). Colorado blue spruce is less sensitive to environmental impact and have a better ecological adaptive balance of pigment content than Norway spruce. Our results confirm that from a sustainable development of the urbane areas perspective it is necessary to using the Colorado blue spruce for greene planting.

The article addresses one of the relevant global trends – the sharing economy or participation economy. The authors explore its features and benefits (time and resources saving, rational consumption, use of communication technologies etc.). The publication considers the driving forces, namely peering social networks, real-time technologies, the global economic crisis, environmental issues and a renewed belief in the importance of communities. The authors argue that BlaBlaCar is one of the world leading online ridesharing platforms. The article defines the essence of BlaBlaCar as a new model of shared consumption tracing the history of its inception and development. The authors examine characteristics and peculiarities of BlaBlaCar in terms of a modern information network; reveal the behavioral traits of BlaBlaCar users worldwide and in Ukraine. The article attempts to anticipate the prospects of BlaBlaCar development.

Sustainable tourism is fundamentally about preserving and enhancing natural, historical, or cultural heritage, as well as promoting activities related to local identity and history. For mining regions, one of the ways to diversify their economies on a sustainable basis is to develop the tourism sector. The development of niche forms of tourism, which are fully focused on the resources of the industrial area, helps to supplement and diversify the tourist offer in these regions, including industrial tourism and one of its areas - mining tourism. The objective of the study is to reveal the importance of sustainable development for an old industrial region, using Kryvyi Rih as an example, by intensifying tourism activities that would maximize the social, economic, cultural, and environmental benefits of tourism. The research is based on the dialectical method of cognition and a systematic approach. The research was carried out on the basis of parallel use of theoretical (comparative analysis, abstraction, specification and generalization) and empirical methods (expeditionary methods, observations, the method of field visual inspections, content analysis, etc.) As a result of the study, approaches to the concept of “mining tourism” were structured, and the key objects of interest of consumers of this tourist destination were identified. Global trends in the transformation of industrial areas for the needs of mining tourism were analyzed. The information on mining facilities in Kryvyi Rih is systematized and their suitability for the tourism sector is diagnosed. Based on the diagnostics, the use of various mining facilities in thematic tour programs is proposed, which is confirmed by the results of practical tourism activities.

The development of students’ key competences and their scientific worldview is one of the significant tasks of secondary education. Understanding of the Universe, its objects, structure and research methods is an important part of natural and mathematic worldview. Problem-based learning is a relevant form for develop critical thinking during the study of these topics in the course of astronomy. In the conditions of distant learning this can be realized with the help of interactive online platforms whereas practical tasks can be realized through the use of simulators, mobile and computer applications. This will contribute the development of students’ key competences and practical skills. This research offers to emphasize the Universe study and interactive technology use in order to develop research, information and digital competences as well as competences in natural sciences and technologies.