bluuebunny/crossref_metadata_2025 huggingface dataset:
Księgozbiór specjalistyczny Henryka Grohmana (1862– 1939) a jego kolekcja grafiki nowoczesnej
Authors: Dragońska Urszula
Published: December 2023

This article is the first study of the library belonging to the Łódź industrialist and art collector Henryk Grohman (1862–1939). It attempts to answer the question of the degree to which analysing these volumes, which are now housed in the collections of the University of Warsaw Library and the National Museum in Warsaw, can prove helpful in the study of art collections. The methodology for researching historical book collections was used to reconstruct and describe the library. These inquiries resulted in more than 165 titles being determined, which originally belonging to Grohman and covered oriental and European arts and crafts, as well as graphic and drawing arts (about 60). These included monographs, albums, and critical catalogues, exhibition and antiquarian nature, published mainly in Western Europe before 1914. The collector’s specialized book collection, built up on an ongoing basis, overlapped with his artistic interests and had the character of a utilitarian library. From the point of view of the study of graphic collections of the late 19th and early 20th centuries, the reference libraries of their creators seem to be of particular importance. In times when taste no longer sufficed to create a valuable collection, and quality and rarity became the main criteria for selecting graphic works, specialized literature on the subject was of help. Created by art historians, collection curators, art market experts, and also private collectors, it introduced the nuanced world of graphic arts. It provided a tool to help identify a print, determine its state, edition and quality, and thus determine the value of a given work. The preserved publications from Grohman’s library were therefore regarded as sources of specialized knowledge that the collector could not acquire either during his education or in his native environment. Three publications have been analysed in detail in the context of Grohman’s graphic arts collection: the series Le peintre-graveur illustré by Loys Delteil (1906–1926), the two-volume catalogue of Jean-Louis Forain’s lithographs and etchings by Marcel Guérin (1910, 1912), and the album devoted to the engravings of Fank Bangwyn prepared by Frank Newbolt (1908). These are publications reflecting the thriving activity of the circle of print enthusiasts of the late 19th and early 20th centuries, which had a significant impact on the dissemination of knowledge about this field of art. The series of relationships revealed between the collection of prints and drawings and the reference library significantly expanded the knowledge on its creator and how the collection was formed. It made it possible to appreciate the collector’s expertise and artistic taste, to observe how his awareness grew, influencing decisions on subsequent purchases, and also to detail the provenance of certain works. Thanks to the research field being expanded to include Grohman’s library, the findings on his graphic collection have become more complete and reliable.
Rewolucja i reakcja
Authors: Haskell Francis , Mencfel Michał
Published: December 2023

The article is a Polish translation of a chapter from a book titled Rediscoveries in Art. Some Aspects of Taste, Fashion and Collecting in England and France. The Wrightsman Lectures delivered under the auspices of the New York University Institute of Fine Arts (Cornell University Press: Ithaca, New York 1980; first edition: Phaidon Press Limited 1976) by Francis Haskell (1928–2000), a renowned art historian, the author of classic studies on artistic patronage, the history of taste, and collecting. The subject of the essay is changes in tastes, particularly the increased interest in Italian and Northern European painting at the turn of 18th and 19th centuries and the consequences of this phenomenon for the British and French collections of painting created at that time (as well as the diverse political and social turbulences that occurred in the wake of the French Revolution and the Napoleonic wars).
Momenty (nie)ciągłości psychologii narracyjnej
Authors: Obrębska Monika , Soroko Emilia
Published: December 2023

The thematic diversity and the way narrative is understood demonstrate the vitality of the concept and the phenomenon of narrative in psychology. This article presents some questions and dilemmas that narrative psychology, which is still a young discipline in search of its scientific identity, pose to researchers. It is not our ambition to resolve these questions; instead, we perceive them as moments of (dis)continuity in the ongoing narrative story and as markers of the directions of research and theoretical considerations. We identify such themes as the distinction between utterance and narrative, the space between author and listener, the directions in which the notion of narrative identity is expanding, and the link between narrative structure and narrative process. The methodological diversity the narrative perspective introduces allows us to pose research questions in a qualitative and quantitative approach.
Narracja filmowa – funkcja terapeutyczna. Kilka słów o Amatorze (1979) Krzysztofa Kieślowskiego
Authors: Grodź Iwona
Published: December 2023

The strategy of the (auto)therapist in film art is a process of dynamic interaction between the transmitting and receiving roles, i.e. the director – the protagonist of his work and the projected viewers. The film is a space enabling the creator to analyze the problems of a modern man in order to increase the skills of self-understanding, self-distancing from emotions and developing reflection. The latter is conducive to the coherence of narratives about oneself and the construction of one’s identity. Results and conclusions: Projection and identification, which is part of the emotional and cognitive responses available to the creator and recipient of the work, are processes of therapeutic importance. Creation (and contact with its effect – a finished work) is then a tool helping to regulate: modulation of attention, emotions (modulation of emotion), fosters cognition (modulation of cognition), understanding behavior (modulation of behavior) and communication (modulation of communication).
Narracja autobiograficzna w biegu życia
Authors: Dryll Elżbieta , Cierpka Anna
Published: December 2023

The aim of the article is to present the concept and research on the development of autobiographical narrative in the course of a person’s life. Reference was made to basic concepts important for the analysis of the topic: the definition of narrative, constructionist assumptions, understanding the process of creating self-narrative and the definition of autobiographical narrative. The considerations also include the issue of autobiographical memory and the discussion on understanding autobiographical narrative as monolithic vs. polyphonic. The following subchapters discuss the predispositions and development of early narrative competences, the beginnings of constructing an autobiographical narrative, the mechanisms of shaping and changing the autobiographical narrative in adulthood, including the characteristic features of self-narratives in late adulthood. The review of research presented in the article documents the mechanisms of shaping the autobiographical narrative, the directions of its changes in the life course and selected relationships important for understanding the process of these changes (e.g. the issue of increasing the ability to reflect biographically with age, fulfilling the need for generativity, the effect of intentionally minimizing unpleasant feelings in senior age, the concept of gerotranscendence, etc.). The article ends with reflections on the importance of constructing an autobiographical narrative in the modern world, the availability of autobiographical reflection and its meaning-creating value.
Pamiętać, upamiętniać, wspominać - nasz obowiązek wobec pokoleń minionych i przyszłych
Authors: Leśniak Lucyna
Published: December 2023

Jubilees and anniversaries usually are the reason to look back, at times and events, but also at people, predecessors of what we are now a part of. It should not surprise then that while in 2019 the Adam Mickiewicz University celebrated its centenary, several new ideas emerged to commemorate previous generations of University people. The Archaeology Faculty of AMU, being of the same age, also incorporated a few ones, including jubilee editions, conferences, and displays. One of the ideas that appeared at that time was to commemorate, in form of exhibitions, some particular alumni, who devoted their lives to archaeology and the University. There have been five such displays presented since then, the first, dedicated to Professor Wojciech Kóčka (1911–1965), opened on November 13th 2021. The article, referring to the display, presents Kóčka’s life and career, illustrating how interesting figure he was. The subjects discussed herein include Sorbian issues, second world war conspiracy, history of archaeology and anthropology, experiencing of air photography in archaeology in pre-war Poland, and the beginning of excavations at Biskupin, to mention the most important. The article, however, is meant to be just the beginning of a discussion, and the hope is expressed at its end that the future brings a monograph devoted to Kóčka.
Archeologizacja krajobrazu. Dynamika współczesnych przemian i negocjowanie społecznych znaczeń - przykład wybranych wsi Jury Krakowsko-Częstochowskiej
Authors: Ławrynowicz Olgierd , Krupa-Ławrynowicz Aleksandra , Piotrowska Alicja
Published: December 2023

In the article, the authors describe the process of archaeologization of selected objects in the local landscape, using examples from five municipalities located in the northern areas of the Polish Jurassic Highland. They look at the processes of persistence or transformation (replacement, revitalization, expansion) and abandonment (destruction, disappearance). The analysis of the collected materials combines the perspectives of archaeology and ethnography/cultural anthropology. It is part of the understanding of landscape as a cultural heritage that runs over time, its form and meaning are fields for negotiation by various entities (local communities, state administration and experts/researchers).
Fortune and glory: motives for modern day treasure hunting in Poland
Authors: Mroczek Diana
Published: December 2023

In 2018, an amendment to the Act on the Protection and Care of Monuments of 2003 was introduced in Poland, aimed at combating the problem of treasure hunting and its impact on national heritage. Despite the consequences, especially a potential penalty of up to eight years in prison, treasure hunting remains an attractive pastime for some. The article aims to find motives of treasure hunters through literature review and studying online forums, including a Facebook groups, to gather information for further action to protect the archaeological heritage. The author identifies seven main motivators of individual treasure hunters, which include: passion for history, adventure seeking, intellectual challenge, collecting, need for fame and recognition, personal satisfaction, and finally financial gain. Each of the above is explained and showed though treasure hunters own public admissions.
Andrzej Sikorski (1953–2023). Archeolog, wykładowca, poeta
Authors: Antowska-Gorączniak Olga
Published: December 2023

On November 11th, 2023 died Andrzej Sikorski, an archaeologist, a university teacher, and a poet. The three nouns, however, appear to be insufficient to describe his intensive presence in the Archaeology Faculty at Adam Mickiewicz University and in numerous other places in Poznań. The paper is an attempt to introduce some of his achievements in various fields, and a farewell to a friend.
Promoting local food systems through public procurement in the European Union
Authors: Muñoz Gómez Marta J.
Published: December 2023

An attempt is made in this article to determine the possible role of strategic public procurement in the promotion of local food systems. The question asked is whether the principles of competition law that regulates the EU’s single market, fully applied in the framework of public procurement, stand in confrontation with the promotion of local food systems. It has been shown that local food systems can be a valid strategical clause included in public procurement procedures, as they enhance various social and environmental general interests that provide consumer’s welfare by improving competition. The local food clause should be defined in the public procurement procedures without reference to a specific administrative territory, whether national or regional and be proportional and suitable to secure the attainment of the general interests’ objectives.
Oil Transnational Corporations and the Legacy of Corporate-Community Conflicts: The Case of SEEPCO in Nigeria
Authors: Ezeudu Martin-Joe
Published: December 2023

This paper examines the nature, impact, ramifications, and root causes of the corporate-community resource conflict in Anambra’s oil-bearing communities. It approaches this objective from the standpoint that such a conflict may be appropriately termed “a legacy of oil transnational corporations” in Nigeria, given their antecedents in the Niger Delta region. Unlike the existing literature that blames such conflicts for the most part on environmental, socio-economic, and political factors, with limited emphasis on the legal factors, this paper takes the position that an unhealthy legal apparatus of the Nigerian state and regulatory gaps in Nigeria’s oil industry provide the enabling environment that makes the conflict inevitable. Essentially, this paper tweaks the “resource curse” theory as espoused by mainstream political economists by demonstrating that, apart from greed and grievance, the “curse” is equally underpinned by inept legal structures and regulatory gaps that show little regard for good governance and the well-being of the local people in host communities. But two possible solutions are proffered. One is the institutionalization of a statutory scheme for consultation with the local communities before appropriation of their lands for oil production projects, and the other is encouraging the participation of indigenous peoples or indigenous entities in the development of their natural resources, following the example of Orient Petroleum Resources Plc.
Prediction in SVO and SOV languages: processing and typological considerations
Authors: Engelhardt Paul E. , Filipović Luna , Hawkins John A.
Published: December 2023

In this study, we tested the possibility that different word orders engender different processing preferences. Our key hypothesis was that a head-initial language like English (SVO) allows more prediction compared to a head-final language like Japanese (SOV). In Experiment 1, English and Japanese native speakers completed a cloze task in which they heard a sentence fragment (SV_ in English and SO_ in Japanese) and had to complete it with the word they thought best. We assessed cloze probability of the words produced and voice onset times. Experiment 2 examined written completions in English, in which we compared the cloze probabilities in SV_ fragments versus OS_ fragments. Following the central hypothesis, this experiment allowed us to determine (within language) whether there is more prediction from a noun and verb compared to two nouns. Finally, in Experiment 3, we compared written completions in English and Japanese, in which the stimuli given to participants were identical (SV_ in English and S_V in Japanese). Results across all three experiments were consistent with greater prediction in English. We argue that prediction is one important factor in processing, that it is relied on more in English than in Japanese, and that prediction will be especially favored in languages like English in which the verb regularly precedes its direct object.
Crystal structure of (Z)-3-(3-(4-hydroxyphenyl)-2-(phenylimino)-2,3-dihydrothiazol-4-yl)-2H-chromen-2-one, C24H16N2O3S
Authors: Abdel-Wahab Bakr F. , Alanazi Saud A. , Yousif Emad , Kariuki Benson M. , El-Hiti Gamal A.
Published: December 2023

C24H16N2O3S, triclinic, P

1
‾

$\overline{1}$

(no. 2), a = 6.7738(3) Å, b = 11.6072(6) Å, c = 13.6060(9) Å, α = 69.197(6)°, β = 87.025(5)°, γ = 76.990(4)°, V = 973.90(10) Å3, Z = 2, R

gt
(F) = 0.0482, wR

ref
(F
2) = 1191, T = 293(2) K.
Simple co-precipitation synthesis of activated carbon-cobalt ferrite (AC-CoFe2O4) nanocomposites: enhanced photocatalytic dye degradation and antimicrobial activity
Authors: Meena Boominathan Catherin , Dinesh Ayyar , Ezhlilarasi Joshua Christy , Ayyar Manikandan , Pandiyarajan Sabarison , Kalaivani Semmedu Selvaraj , Muthukrishnaraj Appusamy , Jaganathan Saravana Kumar , Chuang Ho-Chiao
Published: December 2023

In this present work, spinel cobalt ferrite nanoparticles (CoFe2O4 NPs) and activated carbon-CoFe2O4 nanocomposites (AC-CoFeO4 NCs) were synthesized by simple co-precipitation method and used for photocatalytic dye degradation (PCD) of rhodamine-B (Rh-B) dye. The antimicrobial study of the as-synthesized CoFe2O4 NPs was also performed. The as-synthesized CoFe2O4 NPs and AC-CoFe2O4 NCs were analyzed by ultraviolet spectroscopy (UV), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) studies, scanning electron spectroscopy (FE-SEM) techniques. Powder XRD analysis showed that the as-synthesized CoFeO4 NPs and AC-CoFeO4 NCs had average particle size of 18 nm and 46 nm, respectively. The FE-SEM showed that the CoFe2O4 samples have sphere like morphology and were well decorated on activated carbon in order to provide high surface area. AC-CoFe2O4 NCs have effectively used for the PCD of Rh-B dye with high efficiency. Furthermore, spinel CoFe2O4 NPs acted as a more effective antimicrobial agent against Gram-negative and Gram-positive bacterial strains. Moreover, AC-CoFe2O4 NCs can be used as the precursor materials for supercapacitor, sensors etc.
Wild Boar (Sus scrofa L.) as the Biomonitor of Cadmium and Lead Pollution in the Republic of North Macedonia
Authors: Cokoski Kristijan , Beuković Dejan , Maletić Vladimir , Polovinski Horvatović Miroslava , Vukadinović Marko , Dimitrieska Stojković Elizabeta , Enimiteva Vangelica
Published: December 2023

Until the outbreak of African swine fever in almost the entire Europe and consequently in the Republic of North Macedonia (2022), the population of wild boars was in increase. The biological characteristics of this species make it suitable to be used as a bioindicator for environmental pollution. The concentrations of cadmium and lead (Cd and Pb) were measured using atomic absorption spectrophotometry in the liver of free ranging wild boars. Samples were taken from 608 animals, harvested in a period of 7 years (2016-2022), in 11 hunting locations that cover the whole territory of the Republic of North Macedonia. The mean value of Pb in the liver in all hunting areas was 0.225 mg·kg-1 wet weight with range of 0.154-0.722 mg·kg-1, while mean Cd was 0.366 mg·kg-1 and ranged from 0.177 to 0.464 mg·kg-1. A statistically significant difference in Cd was found between the hunting locations, while Pb differed between hunting years. The mean Cd concentrations were significantly higher in Pelagonisko, Krivorečansko and Ohridsko-Prespansko hunting areas than in those from Pološko hunting area, while the mean Pb values in 2019 and 2020 were significantly higher than the mean value determined in 2021. For Cd, 18.2% of the total number of samples exceeds the maximum allowed limit provided in the legislation, while for Pb it was 6.7%. The maximum mean value for Pb (0.336 mg·kg-1) was measured in 2020 and for Cd (0.449 mg·kg-1) in 2016. The mean values for Pb and Cd obtained in this study were in line with data reported for wild boar from other European countries.
Sleep-Disordered Breathing: Statistical Characteristics Of Joint Recurrent Indicators In ЕЕG Activity
Authors: Selskii Anton O. , Egorov Evgeniy N. , Ukolov Rodion V. , Orlova Anna A. , Drozhdeva Evgeniya E. , Mironov Sergei A. , Doludin Yurii V. , Agaltsov Mikhail V. , Drapkina Oxana M.
Published: December 2023

The purpose of this study was to identify promising candidates for the role of biomarkers associated with different degrees of the apnea-hypapnea index in patients using polysomnographic recordings. Material — The study used polysomnography data recorded in 30 patients with nocturnal respiratory dysfunction in the form of obstructive sleep apnea syndrome. Methods — Analysis of polysomnographic recordings was carried out using a joint recurrent indicator, for which further statistical characteristics were assessed: average value, geometric mean, cubic mean, median, dispersion, standard deviation, the coefficient of variation, asymmetry indicator, kurtosis indicator. Results — For all polysomnographic recordings, joint recurrence diagrams were calculated to identify time points corresponding to specific sleep events in patients with high and low apnea-hypnea index. Based on the statistical characteristics of such events, possible candidates for the role of biomarkers to diagnose apnea syndrome are introduced. Conclusion — The article presents clustering parameters and the efficiency of dividing into clusters of statistical characteristics for two groups of patients - with high and low apnea-hypnea index. Characteristics have been identified that are promising candidates for the role of biomarkers associated with the apnea-hypnea index value.
Modeling of thermal processes in vertical heat exchangers of ground-source heat pump
Authors: Denysova Alla E. , Ivanov Pavel A.
Published: December 2023

The basic directions for perfection heat supply systems are the tendency of transition to the low-temperature heating systems based at application heat pump installations. We consider heat supply systems with ground-source heat pump. The paper considers modeling the efficiency of ground-source heat pumps with the account of Ukrainian climate conditions. The paper presents the energy performance criteria which show the way to rational implementation of ground-source heat pumps for heating. A computational model based at non-stationary heat exchange processes in elements of ground-source heat pumps is developed. Generalization and analysis of theoretical and experimental dates allow establishing nature of dependence thermophysical properties on temperature insoil around ground heat exchangers during long term operation of the system. Numerical simulation of thermal processes in vertical ground pipes for ground-source heat pump working with low-temperature heating systems has been worked out. The results of numerical modeling demonstrated perfection and technical adaption of ground-source heat pump for low-temperature heating systems with rational using ground energy potential. The novelty of our method is complex usage theoretical and experimental results which enable to prevent freezing in the ground during long term exploitation This provides insights at effects of different resource mixes and may serve as a new approach to analysis of future heat pump systems using ground source energy development.The proposed method contributes to the field of creation and implementation the sustainable heating technologies using renewable energy sources. The ground heat exchange pipes quantities that are necessary for effective operation heat pump installation, capacity and coefficient of performance with the account of climate conditions are calculated.
The Relationship Between Financial Development and the Composite Stock Price Index in Emerging Market Countries: A Panel Data Evidence
Authors: Hidayat Ariodillah , Liliana  , Harunurrasyid  , Shodrokova Xenaneira
Published: December 2023

This study examines the influence of financial development variables on the Composite Stock Price Index (CSPI) in Emerging Market Countries. This study uses secondary data obtained from the International Monetary Fund and Yahoo Finance, with an annual data period of 2000–2020. Panel data regression analysis using the random effects model was performed to analyze data. The results showed that Financial Market Access Index (FMAI) and Financial Market Depth Index (FMDI) variables had a positive and significant relationship affecting CSPI, while Financial Market Efficiency Index (FMEI) had a negative and significant relationship to CSPI. The FMEI results negatively affecting CSPI indicate the need for improvements in financial market efficiency. Increased efficiency can help ensure that relevant and accurate information is available quickly and fairly to all parties, driving better investment decisions.
Calvin, Rabelais, and the platonic tradition: cognition of god and the self in renaissance and modernity
Authors: Kleinhempel  Ullrich R
Published: December 2023

In Sociology of Religion the massive shift towards secularisation, especially in historically Protestant countries of Europe, or these with Protestant influence, has been found to comprise two shifts: one towards the loss of religion, the other towards highly individualistic esoteric spirituality. The ‘individualisation of faith’, brought about by Protestantism, proclaimed especially by John Calvin, as ‘master theoretician’, is regarded to be a feature of both. Yet, presently, Protestantism and Western Esotericism, define themselves as opposites. At the beginning of this development, in the 16th century Renaissance culture, Platonism, (understood as spiritual philosophy) had a formative influence on both. In this essay, I will look at the origins of this development, at Calvin’s introduction to his theoretical exposition of Christian faith, the ‘Institutes’, and at Francois Rabelais’ references to ‘divination’ – the means of finding out the will of God – as a foremost literary representative of the spiritual tradition that was to become Western Esotericism. I will show, that both are close in their sharing of the Platonic motif that the knowledge of God and of the Self are interconnected – despite their differing reception of it. Thus, ‘common ground’ is identified, that may help to understand the present dynamics between both, in the context of Modernity.
Devising a comprehensive technology for treating industrial iron sulfate-containing effluents of galvanic production
Authors: Dovholap Serhii , Gomelya Nikolai , Ivanenko Olena , Frolenkova Svetlana , Shabliy Tatiana
Published: December 2023

The object of the research is complex electrochemical and ferritic decontamination of iron sulfate-containing waters. Processing of liquid waste is carried out by electrochemical treatment using two- and three-chamber electrolyzers. This paper investigates the processes of electrodialysis purification of simulated solutions with an FeSO4 compound concentration of 5 g/dm3 and an H2SO4 compound concentration of 300–2100 mg-equiv/dm3. A plate made of stainless steel was used as the cathode, and a plate made of titanium covered with ruthenium oxide and lead was used as the anode. It is shown that the highest current yield of electrodialysis products of 84.5 % was obtained when using a three-chamber electrolyzer with MA-41 anion exchange membranes. It was found that when using the specified electrolyzer, the concentration gradient, the value of which is directly proportional to the difference in the concentrations of the initial solutions filled with the electrode chambers, has a significant effect on the process of separation of impurities. It is shown that for a two-chamber electrolyzer, the current output reaches 72 %, which is explained by the harmful effect of a significant concentration gradient and is manifested in the rapid mechanical blocking of the membrane and the slowing down of the ion migration process, as well as the increase in energy consumption. In a two-chamber electrolyzer, H2SO4 with a concentration of 18.3 % was obtained, which is suitable for repeated use in etching baths. It was found that as a result of electrodialysis separation and additional oxidation, it is advisable to use concentrated iron sulfate solutions for obtaining ferrite material of a crystalline structure with particle sizes of 2–20 μm. Within the framework of the circular economy, an ecologically safe technology for decontamination of industrial iron-containing sulfate solutions of galvanic production using a complex of electrodialysis and ferrite methods is proposed
Construction of a mathematical model for approximating the sphere by strips of unfolding surfaces
Authors: Nesvidomin Andrii , Ahmed Ali Kadhim , Pylypaka Serhii , Volina Tetiana , Nesvidomin Victor , Vereshchaga Viktor , Andrukh Serhii , Pavlenko Oleksandr , Semirnenko Yuriy , Lysenko Kseniia
Published: December 2023

Approximating non-expandable surfaces by compartments of expandable ones makes it possible to simplify the process of obtaining the required shape without loss of operational properties. There is a known approximation of a sphere using the example of a ball when its surface can consist of polygons. However, this list does not exhaust the possible options for approximating the sphere. Its approximation by truncated cones tangent to parallels or by congruent cylindrical petals tangent to meridians is known.
Any line on the surface of a sphere is a line of curvature. This means that the common line of contact of the expanded surface with the sphere will be a line of curvature for the expanded surface as well (rectilinear generatrices of the expanded surface will cross this line at a right angle). When building a sweep of such a surface, the line of contact will be transformed but the rectilinear generatrices will remain perpendicular to it, which simplifies the construction of the sweep.
The approximation of the sphere by congruent strips, the number of which can be different, starting from one, is considered. A necessary condition for such an approximation is a common line of contact of adjacent strips. To this end, the line of contact on the sphere or the guide curve must have an appropriate shape. Such a curve is taken as a slope line (a curve whose tangents form a constant angle of inclination to the horizontal plane). The study results are the parametric equations of the strip touching the sphere and its corresponding equations on the sweep. The construction of the strip on the sweep is explained by the invariance of the geodesic curvature of the guide curve when the strip is bent until it aligns with the plane. This explains the difference between the proposed approach and conventional methods of sphere approximation.
Approximating the sphere by strips of unfolding surfaces has a practical application in architecture with spherical elements, as well as in religious buildings with domes in the form of a part of the sphere
Improving the technology of waxes obtaining from oil and fat waste
Authors: Saveliev Dmytro , Petrova Olena , Kovalov Pavlo , Cherkashyn Oleksandr , Shevchuk Natalia , Markova Nataliia , Ziuzko Alla , Pidhorodetskyi Mykola , Rozumenko Anatolii , Ivashchuk Oleksandr
Published: December 2023

The object of the research is the extraction of waxes from the waste of the oil and fat industry – spent perlite.
As a result of oil winterization, a significant amount of spent filter powders is formed, the disposal of which poses a danger to the environment. At the same time, winterization waste contains a significant amount of oil and wax, which are important components of many types of products. Oil and wax extraction involves the use of volatile, fire-hazardous solvents. An urgent task is to develop new safe and effective technologies for obtaining oils and waxes from winterization waste.
The technology of extracting waxes from spent perlite, obtained as a result of winterization of sunflower oil, which involves treatment of perlite with sodium chloride solution, was investigated.
Perlite was used according to SOU 15.4-37-210:2004 (CAS Number 93763-70-3) with indicators: mass fraction of fat – 20.1 %, peroxide value – 19.5 ½ O mmol/kg, acid value – 3.5 mg KOH/g. The temperature of mass settling after treatment with sodium chloride is 20 °C, the duration – 10 hours.
The following rational conditions for perlite processing using sodium chloride were determined: the concentration of dry sodium chloride (by weight of perlite) – 35.0 %, the duration of mass boiling – 30 minutes. Under these conditions, the experimental value of the saponification value of the obtained wax was 120.5 mg KOH/g. Wax quality indicators: melting point 71.5 °C, acid value 1.6 mg KOH/g, mass fraction of moisture 0.63 %.
The obtained results make it possible to obtain high-quality waxes from the waste of the oil and fat industry using a safe and affordable substance (sodium chloride). This will make it possible to avoid the need for waste disposal and increase the profitability of oil and fat enterprises due to obtaining valuable products from production waste
Multiplex technique of data transmission in residual class systems
Authors: Bahachuk Denys , Hadzhyiev Matin , Nazarenko Aleksandr , Odegov Nick , Stepanov Dmytro
Published: December 2023

The research object: data transmission in optical communication lines. The subject of research is algorithms for the construction of digital data and methods of their transmission over buses in optical computer systems and in backbone fiber-optic systems.
The problem to be solved is the need to devise new methods that ensure increased reliability and cryptographic stability of optical transmission systems. To solve the task, the issue of expanding the theory of timer signal structures and the system of residual classes for the organization of multifactorial multiplex data transmission through the channels of modern information transmission systems was investigated. The factor space is defined (as an example) for fiber optic transmission systems where different multiplexing options are used or may be used.
The possibility of adapting algorithms for the construction of digital signal structures for their further transmission in the system of residual classes by various methods of multiplexing has been substantiated. The main principles of transmission were considered: the principle of independence of multiplexing the transmission of residues on each module and the principle of logical dependence and physical independence of the system of channels for transmission of residue values for a specific module of a specific system of residue classes.
The basic principle is that at each specific point in time in the multivariate binary space, only one of the possible values of each factor can be equal to unity. A comparison with existing transmission systems shows that the proposed technique could provide data transmission at a speed of up to 16 Tbit/s in a transmission bandwidth of 200 THz. At the same time, the capacity of the alphabet of transmitted characters will be 39468 different characters. It also provides a significant increase in the reliability of the entire transmission system
Characteristics of acoustic signals in healthy children using the new device "Trembita-Corona"
Authors: Khomych Olha , Marushko Yuriy
Published: December 2023

In 2016, the last revision of the nomenclature of breathing sounds took place at the Congress of the European Respiratory Society in Amsterdam.

Purpose: to determine the features of the acoustic signal in healthy children using the new "Trembita-Corona" device.

Materials and methods. 100 healthy children aged from 1 month to 18 years were examined. We have distinguished 3 main groups. The 1st research group included 700 acoustic signals that are characteristic of the vesicular type of breathing, the 2nd group - 100 acoustic signals that are characteristic of the tracheal type of breathing, the 3rd group - 200 acoustic signals that are characteristic of the bronchovesicular type of breathing.

The results. With the help of the new "Trembita-Corona" device, a reference computerized database of acoustic signals for lung condition monitoring in healthy children was created. The parameters of the acoustic signal during different types of breathing in healthy children were formalized. Differences were found between the vesicular and the tracheal type of breathing in the average signal power in 0.1, 2, 3, 4, 5, 7, 8 and 9 octaves, in the frequency of the acoustic signal - in 0, 4, 5, 8 octaves, amplitude of the acoustic signal - in 0,3,4,5, 8 octaves. Differences between the vesicular and the bronchovesicular types of breathing were found in the average signal power in 0, 1, 2, 4, 5, 6, 7, 8 and 9 octaves, in the frequency of the acoustic signal - in 0, 3.5, 6 and 7 octaves, amplitude of the acoustic signal - in all 8 octaves.

Conclusions. The "Trembita-Corona" acoustic monitoring device makes it possible to describe sound phenomena that normally occur in healthy children depending on the type of breathing based on the average signal power, amplitude and frequency of the acoustic signal in 11 octaves
Implication of internet of things (IoT) on organisational performance for SMEs in emerging economies – a systematic review
Authors: Muridzi Gibson
Published: December 2023

The object of this research is the implementation of Internet of Things (IoT) and its effect on organizational performance for Small and Medium Enterprises (SMEs) in emerging economies. SMEs in emerging economies are faced with low level of performance due to technological constraint, inadequate skilled human resource, lower entrepreneurial capabilities and management systems, the deficiency of available information, inadequate use of Information Technology, poor quality products and lack of strategic long-term plans. Systematic literature reviews approach was used to discover, assess and synthesize findings of all relevant individual research on fourth industrial revolution (4IR), IoT, organization performance and SMEs topics. 461 articles were found, and 60 articles were used as sample of this study. Findings of this study established that implementation of IoT positively affects performance for SMEs in emerging economies. Results also shows that financial, technological, and operational risks are major risks faced by SMEs in implementing IoT technologies in emerging economies. The essence of the results is to contribute to current body of knowledge by giving interesting insights in the form of a framework on how IoT technologies can be applied in enhancing SMEs performance in emerging economies. This is achieved by making SMEs aware of its potential benefit by providing some knowledge on securing financial resources, and ability to analyse external environment, and to shed more light on the benefits and opportunities that these new tools offer and how it can subsequently improve organization performance for SMEs. Most articles used systematic literature review were from developed economies as there was limited literature which speaks about IoT and SMEs performance in emerging economies. The study therefore focused on IoT and how it can improve SMEs’ organizational performance in emerging economies.
Social innovations in the company’s strategic goals: peculiarities, classification, efficiency evaluation
Authors: Vostriakov Oleksandr , Notevskyi Yevhenii
Published: December 2023

The article is devoted to the features, classification and evaluation of the effectiveness of social innovations in the implementation of the company's strategic goals. The object of the study is the process of formation and implementation of social innovations in the company's activities. At the same time, the development of the concept of social innovations from the 19th century to the present is considered in detail. Special attention is paid to the interpretation of social innovations and strategic goals of the company in Ukrainian and foreign economic science. The research problem is the complexity of forming modern classifications and evaluating the effectiveness of social innovations in the company's strategic goals. The essence of the obtained results is the disclosure of the theoretical provisions of social innovations and strategic goals, the determination of approaches and methods for evaluating the effectiveness of social innovations, as well as the role of social innovations as a tool for achieving the strategic goals of the enterprise. In the reasoned conclusions of the study, it is explained that the gradation of the results of the implementation of social innovations at the enterprise depending on the type (personal, economic, image and social) indicates that each of them has both positive and negative features; methods of evaluating the impact of innovations on the company's performance are shown. In particular, the assessment of the effectiveness of social innovations is also important because their implementation requires a lot additional efforts, which shifts the focus and can distract from solving important issues that are often urgent. The state of war, the destruction of the usual approaches to doing business, the loss of qualified management personnel, specialists in various processes does not allow to effectively find and implement innovations in the social, environmental and managerial components. All these aspects are considered in the context of the effective implementation of the company's strategic goals in the conditions of a dynamic transformational society, in which the research results can be used in practice.
Development of mathematical models to support decision-making regarding the functioning of critical infrastructure in the industry of energy supply
Authors: Terentiev Oleksandr , Prosyankina-Zharova Tetyana , Diakon Valerii , Manuilenco Roman
Published: December 2023

The object of research is the energy supply company and the processes of generation and supply of electric energy. The paper examines the problems of building mathematical models for forecasting the operation of a critical infrastructure object in the conditions of a changing security environment, characterized by unpredictability, the presence of uncertainties of various types, the appearance of new threats, their combinations, changes in the form, duration, nature of their influence. In the work, the main attention is paid to the study of the functioning of critical infrastructure in the field of energy supply. Based on the study of the functioning of the energy company system, methods of dealing with uncertainties at the stage of data preparation for analysis and during the preliminary construction of models are presented, in particular, statistical and probabilistic approaches, modeling of the studied processes, alternative methods of estimating model parameters, etc. The complexity of preparing the input data set is related to the fact that it is necessary to ensure the representativeness and variability of the data sets, given that a significant number of factors must be included in the model according to the requirements of regulatory documents, which can lead to multicollinearity of the input variables. The paper proposes an analytical toolkit based on the use of mathematical models and their combinations, intended for use in specialized decision support systems. In the course of the research, a number of numerical experiments were conducted, in which the proposed methodology was worked out on the materials of the enterprise – the object of the critical infrastructure of the energy sector. SAS Energy Forecasting software was used to build the models. The best forecasting results are obtained using generalized linear models (GLM), in particular the GLM model in the form of ARIMAX (a moving average autoregressive model that includes an integrated trend component and external regressors). The proposals presented in the work will allow to increase the efficiency of the functioning of the energy sector, including the determination of the goals, tasks and benchmarks of its operation in regular mode for certain periods of time, as well as in the field of development of universal and special mechanisms for ensuring stability in the mode of response to threats and critical situations.
\(\mathcal{I}^{\mathcal{K}}\)-SEQUENTIAL TOPOLOGY
Authors: Behmanush H. S. , Küçükaslan M.
Published: December 2023

In the literature, \(\mathcal{I}\)-convergence (or convergence in \(\mathcal{I}\)) was first introduced in [11]. Later related notions of \(\mathcal{I}\)-sequential topological space and \(\mathcal{I}^*\)-sequential topological space were introduced and studied. From the definitions it is clear that \(\mathcal{I}^*\)-sequential topological space is larger(finer) than \(\mathcal{I}\)-sequential topological space. This rises a question: is there any topology (different from discrete topology) on the topological space \(\mathcal{X}\) which is finer than \(\mathcal{I}^*\)-topological space? In this paper, we tried to find the answer to the question. We define \(\mathcal{I}^{\mathcal{K}}\)-sequential topology for any ideals \(\mathcal{I}\), \(\mathcal{K}\) and study main properties of it. First of all, some fundamental results about \(\mathcal{I}^{\mathcal{K}}\)-convergence of a sequence in a topological space \((\mathcal{X} ,\mathcal{T})\) are derived. After that, \(\mathcal{I}^{\mathcal{K}}\)-continuity and the subspace of the \(\mathcal{I}^{\mathcal{K}}\)-sequential topological space are investigated.
ON TWO-SIDED UNIDIRECTIONAL MEAN VALUE INEQUALITY IN A FRÉCHET SMOOTH SPACE
Authors: Khlopin Dmitry V.
Published: December 2023

The paper is devoted to a new unidirectional mean value inequality for the Fréchet subdifferential of a continuous function. This mean value inequality finds an intermediate point and localizes its value both from above and from below; for this reason, the inequality is called two-sided. The inequality is considered for a continuous function defined on a Fréchet smooth space. This class of Banach spaces includes the case of a reflexive space and the case of a separable Asplund space. As some application of these inequalities, we give an upper estimate for the Fréchet subdifferential of the upper limit of continuous functions defined on a reflexive space.
POLYNOMIALS LEAST DEVIATING FROM ZERO IN \(L^p(-1;1)\), \(0 \le p \le \infty \), WITH A CONSTRAINT ON THE LOCATION OF THEIR ROOTS
Authors: Rokina Alena E.
Published: December 2023

We study Chebyshev's problem on polynomials that deviate least from zero with respect to \(L^p\)-means on the interval \([-1;1]\) with a constraint on the location of roots of polynomials. More precisely, we consider the problem on the set \(\mathcal{P}_n(D_R)\) of polynomials of degree \(n\) that have unit leading coefficient and do not vanish in an open disk of radius \(R \ge 1\). An exact solution is obtained for the geometric mean (for \(p=0\)) for all \(R \ge 1\); and for \(0<p<\infty\) for all \(R \ge 1\) in the case of polynomials of even degree. For \(0<p<\infty\) and \(R\ge 1\), we obtain two-sided estimates of the value of the least deviation.