bluuebunny/crossref_metadata_2025 huggingface dataset:
ROLE OF STROMAL MICROENVIRONMENT IN THE FORMATION OF INVASIVE, ANGIOGENIC, AND METASTATIC POTENTIAL OF ENDOMETRIOID CARCINOMA OF ENDOMETRIUM
Authors: Iurchenko N.P. , Nesina I.P. , Glushchenko N.М. , Buchynska L.G.
Published: June 2023

The aim of the study was to determine the association of indicators of the progression of endometrioid carcinoma of the endometrium (ECE) with the type of stromal microenvironment, the counts of CXCL12+ fibroblasts and CD163+ macrophages, and the expression of the chemokine CXCL12 and its receptor CXCR4 in tumor cells. Materials and Methods: Histological preparations of ECE samples (n = 51) were analyzed. Expression of CXCL2 and CXCR4 antigens in tumor cells, the content of CXCL12+ fibroblasts and CD163+ macrophages, and the density of microvessels were determined by the immunohistochemical method. Results: Groups of ECE with desmoplastic and inflammatory stromal reactions were delineated. The majority (80.0%) of tumors with desmoplasia were of low differentiation grade, deeply invading the myometrium; 65.0% of patients with these tumors were at stage III of the disease. In ECE cases of stages I–II, 77.4% of ECE showed an inflammatory type of stroma. The high angiogenic and invasive potential of EC of stages I–II was associated with an inflammatory stromal type, high counts of CD163+ macrophages and CXCL12+ fibroblasts in the tumor microenvironment, high expression of the chemokine receptor CXCR4, and reduced expression of its ligand CXCL12 in tumor cells. In the majority of EC of stage III, the increase in angiogenic, invasive, and metastatic potential was accompanied by the presence of desmoplastic stroma, increased expression of CXCR4 in tumor cells, and a high count of CXCL12+ fibroblasts. Conclusions: The obtained results showed that the morphological architecture of the stromal ECE component is related to the molecular features of its constituents and tumor cells. Their interaction modulates the phenotypic characteristics of ECE associated with the degree of malignancy.
Energy expenditures for moving space debris objects from low-Earth orbits to utilization orbits
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Holdshtein Yu.M.
Published: June 2023

The ever-increasing clogging of near-Earth space by space debris objects of various sizes significantly limits the possibilities of space activities and poses a great danger to the Earth’s objects. This is especially true for low orbits with altitudes up to 2,000 km. The risk of collision of operating spacecraft with space debris threatens their functioning in near-Earth space. To control space debris, use is made of active and passive methods of space debris removal from operational orbits. At present, promising means of space debris removal are a space debris transfer to low-Earth orbits with a lifetime of less than twenty-five years, a transfer to a junk obit, and in-orbit utilization. According to the latest recommendations, space debris objects moved to low-Earth orbits should have a lifetime of less than twenty-five years. In the dense atmosphere, small space debris objects usually burn up completely, while large ones burn up only partially and may reach the Earth. Since space debris motion in the atmosphere can only be predicted with large errors, a timely and accurate prediction of the place and time of fall of large space debris objects onto the Earth is impossible. Space debris objects can remain in junk orbits for hundreds of years without interfering with space projects. This method of space debris removal reduces the risk of collision with space debris objects in the initial orbit, but increases it in the junk one. According to the concept of in-orbit utilization, space debris is considered a resource for the in-orbit industry. An active space debris removal involves high energy expenditures of service spacecraft. In this regard, the task of their estimation becomes important. The goal of this paper is a comparative assessment of the energy expenditures for moving space debris objects into utilization orbits using service spacecraft with electrojet propulsion systems. The problem is solved using methods of flight dynamics, averaging, and mathematical simulation. The novelty of the obtained results lies in the development of a ballistic scheme and a fast procedure to calculate energy expenditures for moving space debris objects to a disposal orbit using service spacecraft with constant low-thrust electrojet propulsion system. The procedure may be used in substantiating and planning space debris transfer from low-eccentricity low-Earth orbits to utilization orbits.
Classification of the functional features of the shell of a space industrial plat-form
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Palii O.S.
Published: June 2023

The goal of this paper is to identify and classify the functional features of the shell of a space industrial platform. Further space exploration is limited by the difficulty of launching large-sized and massive objects into orbit. At the initial stage of the industrialization of near space, space industrial platforms can be placed therein. The configurations of existing orbital stations as a prototype of space industrial platforms are analyzed, and the ranges of the main parameters of their modules are determined. The structural layout of an industrial platform depends significantly on the technological processes implemented thereon. The configuration of a platform depends largely on a number of criteria that have an effect on its functional features. The paper identifies a number of criteria that have an effect on the functional features and configuration of a platform. They are as follows: structural modularity, the shell frame type, the shell shaping method, the sealing type, the need for a special atmosphere, the need for special process modules, the orientation and stabilization type, the power system type, the thermal control type, the need for a microclimate, and the type of preprocessing of raw materials and their components. Using these criteria, the paper proposes a classification of the functional features of an industrial platform shell. For classification, a space industrial platform is decomposed down to the level of the structural elements of its modules to be used in the development of a comprehensive mathematical model of platform operation. A set of parameters of industrial platforms is formed to ensure the technological processes implemented thereon. The set will be used in platform shell formation according to process parameters. The problem of mass optimization of a space industrial platform is formulated.
Determination of the electron temperature in a supersonic jet of a gas-discharge source from current measurements by an insulated probe system
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Lazuchenkov D.N.
Published: June 2023

The aim of this work is to substantiate the possibility of using the classical procedure for determining the electron temperature for diagnosing a supersonic jet of a collisionless plasma of a diatomic gas using the current-voltage characteristic of an insulated probe system. The probe system consists of a cylindrical probe and a reference electrode composed of several cylinders, all placed transversely in the plasma flow. The ratio of the current-collecting surface area of the reference electrode to the area of the probe is arbitrary and can be significantly less than required by the theory of a single probe. Based on a previously constructed mathematical model of current collection, which includes the calculation of the equilibrium potential of the reference electrode as a function of the probe bias voltage, a procedure is developed for determining the electron temperature by measuring the probe currents in a jet of a gas-discharge source of a laboratory dissociated plasma. An approximation of the floating potential of the insulated probe system in a strongly nonequilibrium plasma of a gas-discharge source jet is found, which allows one to determine the boundaries of the transition region of the current-voltage characteristic using a priori information on the plasma parameters. A formula is obtained for extrapolating the ion probe current vs. bias potential relationship into the transition region of the current-voltage characteristic. Within the framework of the adopted mathematical model of charged plasma particle collection, a numerical analysis of the method error of the electron temperature determination procedure is performed. Quantitative characteristics of the effect of the insulated probe system geometry on the method error are obtained. A numerical simulation of the effect of the probe current measurement errors showed that, within the framework of the adopted model, the accuracy of determining the electron temperature using the insulated probe system is comparable with the accuracy of measurements with a single cylindrical probe. The results obtained may be used in the diagnostics of a laboratory plasma of a gas-discharge source.
Mathematical simulation of the stress and strain field of swap-body freight car components at service loads
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Sobolevska M.B. , Horobets D.V. ,   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Published: June 2023

A new line in railway transportation is the use of swap-body freight cars. Their undercarriage is a flat car for swap bodies, which consists of an underframe, running gear, automatic couples, automatic braking devices, and body fasteners. With seasonal variations in freight shipment, the same flat cars can be used because empty bodies of one purpose are detached from the flat cars and replaced with bodies of another purpose, thus making it possible to use the freight cars obtained in this way dedicated ones. The advantage of freight transportation with swap-body cars is that it allows one to reduce the car acquisition and maintenance cost due to the effective use of a flat car as the most expensive part of a freight car, avoid car demurrage caused by seasonal variations in freight shipment, and speed up the replacement of damaged bodies. It is expedient to introduce freight transportation with swap-body cars on the Ukrainian railways using the world’s experience in the development of swap-body cars. This paper considers a swap-body freight car whose undercarriage is a container flat car. The goal of the paper is a mathematical simulation of the stress and strain field of the components of a swap-body freight car at standard loads according to the Ukrainian State Standard EN 12663-2:2018. Finite-element models were developed to study the stress and strain field of the components of a 45-feet container flat car and a swap-body car at standard loads with account for the features of body-on-undercarriage fastening and clearances in the fasteners. The models underlie the scientific novelty of the paper. Using them, the stress and strain field of the car components at standard loads was studied. According to the requirements of the Ukrainian State Standard EN 12663-2:2018, the strength of the structural components of the flat car underframe was estimated under different loading conditions. It was found that the strength of the 45-feet container flat car underframe under study meets requirements of the Ukrainian State Standard EN 12663-2:2018, while the strength of the underframe of the swap-body car undercarriage does not. This study evidences the need to strengthen the body-on-undercarriage fasteners and improve the design of the swap-body car underframe itself.
A theoretico-methodological understanding of the concept of trustworthiness in sociology and adjacent branches of knowledge
Authors: Liubyva Tetiana , Maksymenko Ol'ha
Published: June 2023

The paper focuses on the understanding of the trustworthiness concept in various realms of academic knowledge, as well as on possible intersections of these interpretations with the understanding of trustworthiness in sociology. Despite quite a frequent usage of the word “trustworthiness” in daily life and a completely “transparent” etymology of this word (“trustworthy”, that is worthy of trust), there is not an established definition of the term “trustworthiness” in academic literature. For example, V. Shlapentokh defines trustworthiness as a property which characterises the degree of adequate reflection of particular features of the social phenomena and processes under study, whereas V. Volovych regards trustworthiness as a degree of correspondence between the gained knowledge and reality. According to Y. Elez, trustworthiness is the way the truth exists “for us”, the way that reflects the correspondence between the truth and its provenness by a cognizing subject. There may be certain difficulties in translating this term. In English, “trustworthiness” literally means “the quality of being worthy of trust”, but we can also come across the word “credibility”, which can be interpreted as “believability” or “cogency”. Besides, there are a number of other concepts such as “truthfulness”, “verifiability”, “consistency”, “certainty”, etc., which are somewhat related to trustworthiness and have similar meanings. In empirical sociological research, trustworthiness mostly relates to validity and reliability. Y. Lincoln and E. Guba developed a set of criteria for assessing the trustworthiness of qualitative research, which are comparable to validity and reliability in quantitative studies. As for factors influencing the trustworthiness of acquired sociological information, they include the following: a) trust between an interviewer and a respondent (A. Irvine, P. Drew and R. Sainsbury); b) the researcher’s awareness of social, cultural and institutional aspects of the issues in question (V. Lub). The given paper does not pretend to provide an exhaustive coverage of the concept of trustworthiness; however, it can give impetus to the discussion on this topic. For instance, designing statistical indicators that allow assessing quantitatively the trustworthiness of sociological research results can be proposed as the first issue to address.
Foreign experience in researching social and political activity online
Authors: Hetman Yulia
Published: June 2023

Over the past decades, depending on the development of information and communication technologies, the understanding of social and political online activity, its meaning, and research methods have been constantly changing. Therefore, the article analyzes new theoretical and methodological approaches and the results of foreign research on public and political online activity. It is worth noting that today the research interest is sharpened by the involvement of more and more citizens and the continuous expansion of online political participation methods in democratic countries. After all, to the huge list of forms of political participation, it is worth adding those that have become available with the development of information and communication technologies, in particular social media — the distribution of political content and the use of social networks to mobilize other people to solve certain political goals. Many research questions have already been raised in the foreign scientific discourse: conceptualization of socio-political online activity, its determinants, predictors, and socio-demographic presentation. In my research, online social and political activism is conceptualized as a form of political participation, meaning citizen activism whose goal or outcome is to influence political and governmental outcomes. The study examines the activity itself because so far this type of activity cannot be called a practice, its normalization and habituation in everyday life have not yet been proven. At the same time, the question of the future of the digital public sphere and its role in democracy is extremely relevant, because it can develop according to at least two opposite scenarios, which directly affects online activism, especially in transition countries. That is why it is so important to study and apply foreign experience in the study of Ukrainian social and political online activism. In general, the article demonstrates that a large gap in Ukrainian research on political participation on the Internet has yet to be filled.
Theorizing in sociology: postpositivist typology of J. Berger, M. Zelditch Jr. and D. Wagner
Authors: Reznik Volodymyr
Published: June 2023

The article presents an explication of the post-positivist typology of theoretical activity in sociology. J. Berger, M. Zelditch and D. Wagner argued for this typology in a set of their publications. They distinguished such types: unit theories of social phenomena, theoretical / orienting strategies, working substantive / methodological strategies for theories construction, theoretical research programs, empirical models. The functions of each of these types were determined within the framework of the theoretical research program. Orienting strategies are broad fundamental directives that provide value-ideological assumptions for the justification of working research strategies. Working strategies define what the core ideas of the research program should be, what questions should be raised by researchers and how they should be investigated within the program framework. In particular, substantive working strategies specify how social phenomena should be defined and conceptualized, what theoretical problems should be solved, and what conceptual tools should be used in doing so. Methodological working strategies specify how unit theories should be developed and what methodological tools should be used to test them. Unit theories are the form in which generated conceptual solutions to researched questions are constituted. Empirical models specify various cases of the studied social phenomena, identify methods of observation and procedures for measuring their manifestations. Within a scientific research program, different types of theorizing interact and complement each other. The growth of sociological knowledge is considered a consequence of this interaction and mutual complementation. As a result, Berger, Zelditch and Wagner significantly expanded the meaning of the concept of a scientific research program in the theoretical context of sociological science. The post-positivist typology of sociological theorizing has become a conceptual tool for empirically identifying trends and patterns of theoretical growth in sociology.
The relationship between the dynamics of the spread of socially dangerous diseases and social inequalities and wartime conditions in Ukraine
Authors: Klymenko Olena
Published: June 2023

The article analyzes the theoretical aspects of scientific researches the problems of spread the socially dangerous diseases and development of health sociology; highlights the results of expert survey of the specialists of public health centers, medical institutions, non-governmental organizations, scientists, conducted by employees of the Department of the Social expertise of the Institute of Sociology of NAS Ukraine in June-August 2022; the influence of existing social inequalities and military time on the spread of socially dangerous diseases is determined. The purpose of the article is to study the interrelation of the dynamics of spread the socially dangerous diseases with social inequalities and conditions of military time in Ukraine. The author made a detailed analysis of the current scientific approach in the field of health sociology, in particular: Ch. Winslow’s theory of "Factors", E. Wilson’s "Sociobiology", concepts of "Stressors" by H. Sale, "Disease of Civilization" by Ch. Rosenberg and "Social Maladaptation" by A. Honneth. The author paid special attention to studying the impact of social inequalities on the spread of socially dangerous diseases in Ukrainian society. In particular, the author highlighted unequal opportunities in access to medical care for different categories of patients with socially dangerous diseases, stigmatization (such forms as discrimination and self-stigmatization), territorial-spatial limitations and various quality of medical care. The analysis of the results of an expert survey of specialists of public health centers and medical institutions, non-governmental organizations and scientists, conducted by members of the Department of social expertise, Institute of Sociology, National Academy of Sciences of Ukraine in June and August 2022 made it possible to establish the influence of social inequalities on the spread of socially dangerous diseases in Ukrainian society. Special attention is paid to the role of Russian military aggression in the worsening situation with the spread of the socially dangerous diseases due to mass destruction of health care facilities, spontaneous movement of large populations, interruptions in the receipt of medicines for therapy, shortage of medical personnel and lack of access to free testing.
Integrity and credibility issues in strategic information on MSM and transgenders in Eastern Europe and Central Asia countries
Authors: Kasianczuk Maksym , Chikhladze Sergo , Djuma Vitaly
Published: June 2023

The article describes the results of an expert survey of activists from two HIV-vulnerable communities (men who have sex with men (MSM) and transgender people), as well as public health professionals from seven countries in the Eastern Europe and Central Asia region regarding the state of strategic information (SI) regarding MSM and trans people in the context of HIV at the national level (quality, integrity, relevance and use of data). An analysis of scientific literature on studies of these communities was also used. According to the level of completeness and quality of SI, the studied countries can be ranked in descending order as follows: Ukraine, Kyrgyzstan, Georgia, Armenia, North Macedonia, Belarus, Estonia. At the same time, information about transgender people is available only in Armenia, Georgia, Kyrgyzstan and Ukraine. The integrity, relevance and use of strategic information in countries mostly depend on the availability of international financial and technical assistance resources, as well as the institutional capacity of organizations of vulnerable communities, in particular in the area of advocacy of the interests of the communities they represent in state authorities. The quality of the available information is also determined by other factors: differences in the definitions of the studied communities (in particular, the inclusion of trans women in the group of men who have sex with men), failure to take into account migration processes, the size and structure of general populations (mostly unknown), the impossibility of constructing non-random samples of sufficient size or insufficient quality of construction of pseudo-random samples, lack of coverage of the entire territory of the respective countries (only the capital and sometimes large cities), etc. In general, with few exceptions, the strategic information available in the Eastern Europe and Central Asia region on MSM and trans people in the context of HIV is incomplete, underutilized and of limited validity.
COMPUTER SIMULATION AND RESEARCH OF ENERGY EFFICIENCY OF PROCESSES OF CHARGING AN ELECTRIC CAR BATTERY FROM A WIRELESS CHARGER
Authors:   Institute of electrodynamics National Academy of Sciences of Ukraine, pr. Peremohy, 56, Kyiv, 03057, Ukrain, Zharkin A.F. , Podoltsev O.D. ,   Institute of electrodynamics National Academy of Sciences of Ukraine, pr. Peremohy, 56, Kyiv, 03057, Ukrain, Pavlov V.B. ,   Institute of electrodynamics National Academy of Sciences of Ukraine, pr. Peremohy, 56, Kyiv, 03057, Ukrain
Published: June 2023

In the paper, based on the method of computer simulation, the process of charging a lithium-ion battery for an electric car from a wireless charger of the inductive-resonance type was investigated. It is shown that when modeling this process, it is necessary to take into account the simultaneous flow of two processes of different scales in time and interconnected - a short-term high-frequency process in the inverter of the charger with a characteristic time of 10-5 s and a long-term process of charging the battery with a characteristic time of 104 s. Direct numerical calculation of these two processes simultaneously requires significant computer resources. To solve this problem, a new approach is proposed and implemented in the Matlab/Simulink package, according to which, at the first stage, when calculating high-frequency processes in the inverter, there are modified Thevenin and Norton equivalents for a wireless charging device, taking into account the total internal losses in this device, and at in the second stage, the long-term battery charging process is calculated first in the mode of a constant current source, using the constructed Norton equivalent, and then in the mode of a constant voltage source, using the constructed Thevenin equivalent. This approach makes it possible to take into account interrelated and time-varying processes in the inverter and in the battery and to investigate the efficiency of wireless transmission of electrical energy from a stationary power source to a battery located on board an electric vehicle. According to the results of the calculations, it is shown that for the developed device, the integral efficiency of the entire battery charging process when the battery parameter increases from 20% to 95% is 86%. References 9, figures 8.
COMPARATIVE ANALYSIS OF ENERGY CHARACTERISTICS OF DIFFERENT TYPES OF SYNCHRONOUS TRACTION ELECTRIC MOTORS
Authors:   National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, pr. Peremohy, 37, Kyiv, 03056, Ukraine, Vaskovsky Yu.M. , Pavluk V.V. ,   National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, pr. Peremohy, 37, Kyiv, 03056, Ukraine
Published: June 2023

Using the methods of mathematical modeling, a comparative analysis of the electromagnetic torque and power charac-teristics of three versions of traction synchronous motors was carried out: a synchronous jet engine, a hybrid synchro-nous jet engine with additional permanent magnets on the rotor, and a synchronous engine with permanent magnets installed on the rotor surface. The comparative analysis was carried out under the conditions of the same dimensions of the engines, the nominal values of the stator winding current and the speed of rotation of the rotor. It was established that under the given conditions, the synchronous motor with permanent magnets on the surface develops the greatest power and torque, but it also has the largest torque pulsations. Design measures to reduce torque pulsations at the same time led to a noticeable decrease in the nominal power of engines. The obtained results can be used when choos-ing an appropriate type of synchronous traction motor, taking into account the given compromise requirements for engine characteristics and vehicle operating conditions. References 12, figures 5, table 2.
ELECTROMAGNETIC MOMENTS OF CONTROLLING THE PRECESSION MOVEMENT OF A THREE-DEGREE-OF-FREEDOM ELECTRIC MACHINE
Authors:   Institute of Electrodynamics National Academy of Sciences of Ukraine, pr. Peremohy, 56, Kyiv, 03057, Ukraine, Petukhov І.S.
Published: June 2023

The main known structures and principles of functioning of electric machines with three degrees of freedom of rotational motion of the rotor are considered. The type of such machines in which it is possible to realize a high frequency of the rotor rotation is highlighted, which gives it the property of gyro-stabilization. The structure of the magnetic system of the machine of this type is presented and a hypothesis is put forward about the adequacy of the expressions of the classical analytical mathematical model, but the need for accurate calculation of the concentrated parameters that make up it. The distribution of magnetic flux density is analyzed based on a numerical mathematical model of a three-dimensional mag-netic field. The dependences of electromagnetic torque components and flux linkages on the rotor axis orientation and the angle of its rotation are calculated. It was concluded that the classical analytical mathematical model are adequate pro-vided that the calculating of its coefficients is based on the results of the modeling of three-dimensional magnetic field in the machine active volume and the surrounding space. It is underlined that, the amplitude of the flux linkage vector of the control winding and the fluctuations of the vector components to use in lumped parameter model must be calculated from the corresponding values of the electromagnetic torque components. Taking into account the results of the analysis of the three-dimensional field demonstrates a significant decrease in the speed of controlled precession and an increase in the amplitude of nutation. References 9, figures 10, tables 2.
Nomenclatural notes on South American Gentianella (Swertiinae, Gentianeae, Gentianaceae): Gentianella calanchoides, G. ernestii, and G. rima
Authors:   Royal Botanical Gardens, Hamilton, Ontario, Canada, PRINGLE James S.
Published: June 2023

The name Gentianella rima (D. Don ex G. Don) Fabris is correctly applied to a species native to central Peru. The name G. ernestii (Briq.) Fabris ex J.S. Pringle is correctly applied to a similar species native to southern Peru. These species, along with G. calanchoides (Gilg) Fabris, are contrasted here.
×Kengdoroegneria, nothogen. nov., and new nomenclatural combinations in Triticeae (Poaceae)
Authors:   M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, OLSHANSKYI Ihor G.
Published: June 2023

The system of the family Poaceae is dynamically changing due to the progress of phylogenetic research. Consequently, nomenclature of some taxa should be adjusted accordingly. In the Plants of the World Online (POWO) and some other authoritative online sources, some genera and nothogenera are accepted in rather wide circumscriptions; for example, ×Agroelymus E.G. Camus ex A. Camus (including ×Agrotrigia Tzvelev and ×Elymopyrum Cugnac), ×Elyleymus B.R. Baum (with synonyms ×Leymotrigia Tzvelev and ×Leymotrix Kharkev. & Prob.), and Elymus L. (including Elytrigia Desv. and ×Elymotrigia Hyl.). However, Pseudoroegneria (Nevski) Á. Löve and Kengyilia C. Yen & J.L. Yang are now commonly recognized as separate genera. If we accept these taxonomic concepts, several nomenclatural combinations are needed. Thus, some of them are proposed here. I propose a new nothogenus ×Kengdoroegneria Olshanskyi for intergeneric hybrids between species of Kengyilia C. Yen & J.L. Yang and Pseudoroegneria (Nevski) Á. Löve. Also, nine nomenclatural combinations in ×Agroelymus, ×Elyleymus, Elymus, and ×Kengdoroegneria are validated.
A new nomenclatural combination in Reynoutria (Polygonaceae)
Authors:   M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, OLSHANSKYI Ihor G. , ANTONENKO Svitlana I. ,   M.G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine
Published: June 2023

The genus Reynoutria includes ca. six species native to East Asia. Hybridization is rather common in this genus. The hybrid Reynoutria ×bohemica Chrtek & Chrtková is currently widespread in Europe, Asia, North and partly South America, Australia and New Zealand. A hybrid between Fallopia compacta (Hook. f.) G.H. Loos & P. Keil and F. sachalinensis (F. Schmidt) Nakai was described recently as Fallopia ×moravica Hodálová & Mereďa. Since we accept the genus Reynoutria as separate from Fallopia, we propose a new combination for this hybrid: Reynoutria ×moravica (Hodálová & Mereďa) Olshan­skyi & Antonenko, comb. nov.
A sharp Remez type inequalities for the functions with asymmetric restrictions on the oldest derivative
Authors: Kofanov V.A. , Zhuravel A.V.
Published: June 2023

For odd $r\in \mathbb{N}$; $\alpha, \beta >0$; $p\in [1, \infty]$; $\delta \in (0, 2 \pi)$, any $2\pi$-periodic function $x\in L^r_{\infty}(I_{2\pi})$, $I_{2\pi}:=[0, 2\pi]$, and arbitrary measurable set $B \subset I_{2\pi},$ $\mu B \leqslant \delta/\lambda,$ where $\lambda=$ $\left({\left\|\varphi_{r}^{\alpha, \beta}\right\|_{\infty} \left\| {\alpha^{-1}}{x_+^{(r)}} + {\beta^{-1}}{x_-^{(r)}}\right\|_\infty}{E^{-1}_0(x)_\infty}\right)^{1/r}$, we obtain sharp Remez type inequality $$E_0(x)_\infty \leqslant \frac{\|\varphi_r^{\alpha, \beta}\|_\infty}{E_0(\varphi_r^{\alpha, \beta})^{\gamma}_{L_p(I_{2\pi} \setminus B_\delta)}} \left\|x \right\|^{\gamma}_{{L_p} \left(I_{2\pi} \setminus B \right)}\left\| {\alpha^{-1}}{x_+^{(r)}} + {\beta^{-1}}{x_-^{(r)}}\right\|_\infty^{1-\gamma},$$ where $\gamma=\frac{r}{r+1/p},$ $\varphi_r^{\alpha, \beta}$ is non-symmetric ideal Euler spline of order $r$, $B_\delta:= \left[M- \delta_2, M+ \delta_1 \right]$, $M$ is the point of local maximum of spline $\varphi_r^{\alpha, \beta}$ and $\delta_1 > 0$, $\delta_2 > 0$ are such that $\varphi_r^{\alpha, \beta}(M+ \delta_1) = \varphi_r^{\alpha, \beta}(M- \delta_2), \;\; \delta_1 + \delta_2 = \delta .$In particular, we prove the sharp inequality of Hörmander-Remez type for the norms of intermediate derivatives of the functions $x\in L^r_{\infty}(I_{2\pi})$.
Description of the automorphism groups of some Leibniz algebras
Authors: Kurdachenko L.A. , Pypka O.O. , Semko M.M.
Published: June 2023

Let $L$ be an algebra over a field $F$ with the binary operations $+$ and $[,]$. Then $L$ is called a left Leibniz algebra if it satisfies the left Leibniz identity: $[[a,b],c]=[a,[b,c]]-[b,[a,c]]$ for all elements $a,b,c\in L$. A linear transformation $f$ of $L$ is called an endomorphism of $L$, if $f([a,b])=[f(a),f(b)]$ for all elements $a,b\in L$. A bijective endomorphism of $L$ is called an automorphism of $L$. It is easy to show that the set of all automorphisms of the Leibniz algebra is a group with respect to the operation of multiplication of automorphisms. The description of the structure of the automorphism groups of Leibniz algebras is one of the natural and important problems of the general Leibniz algebra theory. The main goal of this article is to describe the structure of the automorphism group of a certain type of nilpotent three-dimensional Leibniz algebras.
KEPUASAN PEMUSTAKA TERHADAP LAYANAN PERPUSTAKAAN DI SMP NEGERI 12 SEMARANG
Authors: Widyatama Firdaus Arya , Suharso Putut
Published: June 2023

The services provided in the school library have an impact on the satisfaction of visiting users. The services in the school library must of course be adapted to the conditions and information needs of its users, namely school residents such as teachers and students. This study will discuss user satisfaction with the services in the library of 12 Junior High School Semarang so that in the future it can be used as an evaluation for the library in developing its services. The writing of this research applies a qualitative method with a descriptive approach. The author conducted observation and interviews with the users who use library services and the librarian who manages the library when the author visited to collect data. The results of this study indicate that the existing facilities in the library of 12 Junior High School Semarang are in accordance with the national standards of the Junior High School library. The service from the librarian is also considered good by most of the users, although the librarian who manages the library still has shortcomings in operating service support applications.Layanan yang terdapat di perpustakaan sekolah memiliki dampak terhadap kepuasan pemustaka yang berkunjung. Layanan yang ada di perpustakaan sekolah tentunya harus disesuaikan dengan kondisi dan juga kebutuhan informasi pemustakanya, yaitu warga sekolah seperti guru dan peserta didik. Penelitian ini akan membahas mengenai kepuasan pemustaka terhadap layanan yang ada di perpustakaan SMP Negeri 12 Semarang agar ke depannya dapat dijadikan evaluasi bagi perpustakaan tersebut dalam mengembangkan layanannya. Penelitian ini menerapkan metode kualitatif dengan pendekatan deskriptif. Penulis melakukan observasi dan wawancara dengan pemustaka yang memanfaatkan layanan perpustakaan dan pustakawan yang mengelola perpustakaan tersebut pada saat penulis berkunjung untuk mengumpulkan data. Hasil penelitian ini menunjukkan bahwa fasilitas yang ada di perpustakaan SMP Negeri 12 Semarangsudah sesuai dengan Standar Nasional Perpustakaan SMP. Pelayanan dari pustakawan juga dipandang baik oleh sebagian besar pemustaka, meskipun pustakawan yang mengelola perpustakaan tersebut masih memiliki kekurangan dalam mengoperasikan aplikasi penunjang layanan.
PENERAPAN ENAM LITERASI DASAR PADA ANAK DI TAMAN BACAAN MASYARAKAT BALAI BACA RUMAH BAKO
Authors: Annisa Rahmatul
Published: June 2023

This study aims to describe the application of six basic literacy in children at TBM Balai Baca Rumah Bako. The method used in this research is descriptive qualitative method, where the data is obtained through observation, interviews and documentation. The application of six basic literacy in children carried out by TBM Balai Baca Rumah Bako, namely: (a) the implementation of reading and writing literacy in children is carried out through lapiak baco activities, storytelling, reading aloud and writing poetry and short stories; (b) the application of scientific literacy to children is applied through tutoring activities in mathematics as well as providing an understanding of arithmetic operations in daily life; (c) scientific literacy in children is carried out through parak bako and small camp activities; (d) the application of digital literacy to children is carried out through training on the use of computers and watching movies together; (e) financial literacy in children is carried out through parak bako and batuang (babuek for kampuang) activities; (f) cultural literacy and citizenship in children is carried out through the formation of Minangkabau art studios and routinely commemorating Indonesia's independence day. The application of six basic literacy in children carried out by the TBM Balai Baca Rumah Bako is not optimal, because only literacy and cultural literacy activities are routinely carried out and have a direct impact on children.Penelitian ini bertujuan untuk mendeskripsikan penerapan enam literasi dasar pada anak di TBM Balai Baca Rumah Bako. Metode yang digunakan dalam penelitian ini yaitu metode deskriptif kualitatif, dimana data diperoleh melalui observasi, wawancara dan dokumentasi. Penerapan enam literasi dasar pada anak yang dilakukan TBM Balai Baca Rumah Bako yaitu : (a) penerapan literasi baca-tulis pada anak dilakukan melalui kegiatan lapiak baco, mendongeng, membaca nyaring dan kegiatan menulis puisi dan cerita pendek; (b) penerapan literasi sains pada anak diterapkan melalui kegiatan bimbingan belajar matematika serta memberikan pemahaman operasi aritmatika dalam kehidupan sehari-hari; (c) literasi sains pada anak dilakukan melalui kegiatan parak bako dan camp cilik; (d) penerapan literasi digital pada anak dilakukan melalui kegiatan pelatihan penggunaan komputer dan nonton bareng; (e) literasi finansial pada anak dilakukan melaui kegiatan parak bako dan batuang (babuek untuak kampuang); (f) literasi budaya dan kewargaan pada anak dilakukan melalui kegiatan pembentukan sanggar kesenian Minangkabau serta rutin memperingati hari kemerdekaan Indonesia. Penerapan enam literasi dasar pada anak yang dilakukan oleh TBM Balai Baca Rumah Bako belum optimal, karena hanya kegiatan literasi baca tulis dan literasi budaya yang rutin dilakukan serta berdampak langsung pada anak
PEMANFAATAN DATABASE ONLINE EBSCO BAGI PEMUSTAKA
Authors: Ramayanda Delvia Gustia
Published: June 2023

This research was conducted to determine the use of the Ebsco online database subscribed by the UPT Library of Universitas Negeri Padang for users of the UPT Library of Universitas Negeri Padang. This research method uses a quantitative type of research with a descriptive method. In this study, researchers used two research instruments, namely questionnaire and interview. The questionnaire adapted from Hidayat (2007). This questionnaire has 19 questions divided into four categories namely; frequency of Ebsco online database utilization, purpose of utilization of Ebsco online database, ability of users to browse collections and actions on information search results on Ebsco online databases. From 61 repondents, it can be concluded that users of the Ebsco online database are categorized as "frequent". Based on the results of the analysis using four categories, the results of the overall variables were obtained, there were 28 users with a percentage of 46% of the information retrieval process and information search results in the Ebsco online database.The aspect that influence the use of collections are the frequency of users, the purpose of users, the ability of users to trace collections and the role of librarians. From the results of this study, the frequency of utilization was the most influence aspect the activity in the utilization of the Ebsco online database with a frequency of 44% (in the category of sometimes). So the results of the study on the utilization of the Ebsco online database as a whole were found to be in the "frequent" category with a frequency of 28 and a percentage of 46%.
PERILAKU PENCARIAN INFORMASI RELAWAN DI KOMUNITAS RANGMUDO PALITO PENDIDIKAN PERSPEKTIF LECKIE
Authors: Rahmadanty Mutiara , Erlianti Gustina
Published: June 2023

This study intends to describe the needs of volunteers in searching for information. This study uses descriptive qualitative methods with data collection techniques, namely observation, interviews and documentation. Data analysis uses the theory of Miles and Huberman, namely data reduction, data presentation and verification. The research results show that. The results of this study are (1) work roles, (2) characteristics of information needs, (3) sources of information, (4) awareness of information, (5) outcomes. Information search results are the results obtained from the information search process. Optimal results can be achieved if the information obtained can help complete the tasks and roles of volunteer work. Obtained from the information seeking behavior of volunteers in the educational Rangmudo Palito community with a Leckie perspective, namely searching for information obtained by volunteers which will later be distributed to children in orphanages, of course, requires information search sources that match the needs of volunteers so that children are able to apply the information provided given as a lesson.Penelitian ini bermaksud untuk mendeskripsikan kebutuhan relawan dalam melakukan pencarian informasi. Penelitian ini menggunakan metode kualitatif deskriptif dengan teknik pengumpulan data yaitu observasi wawancara dan dokumentasi.  Analisi data menggunakan teori Miles dan Huberman yaitu reduksi data, penyajian data dan verifikasi. Hasil penelitian menunjukkan bahwa. Hasil penelitian ini (1) work roles (peran kerja), (2) characteristic of information needs (karakteristik kebutuhan informasi), (3) sources of information (sumber informasi), (4) awareness of information (kesadaran informasi), (5) outcomes. Hasil penelusuran informasi merupakan hasil yang didapati dari proses pencarian informasi. hasil yang optimal dapat tercapai apabila informasi yang diperoleh dapat membantu meyelesaikan tugas dan peran kerja relawan. Di peroleh dari perilaku pencarian informasi relawan di komunitas rangmudo palito pendidikan berperspektif leckie yaitu pencarian informasi yang diperoleh relawan yang nantinya akan dibagikan kepada anak-anak di panti asuhan tentunya memerlukan sumber pencarian informasi yang sesuai dengan kebutuhan relawan hingga anak-anak mampu untuk mengaplikasikan informasi yang diberikan sebagai pembelajaran.
Some notes on the date of Attila's death
Authors: Kovács Péter
Published: June 2023

In his paper the author deals with the date of Attila's death. Several scholarly works dealt already with Attila's death and the written sources. The antique source dates his death to the year 453 shortly before Attila's planned campaign against Marcian. On the other hand, Leo the Great's letters has not been examined regarding this issue. In one of his letters written 11 March 451, the pope mentions the still existing dangers (flagella) where obviously refer to Attila and the Huns. This means nothing was known about Attila's death in the middle of March of 453 in Rome, so the Hun king must have died a little bit later.
Reconstructing the riverside of the Danube in the medieval city of Pest
Authors: Horváth Viktória P.
Published: June 2023

In early 2017, an astonishing number of archaeological finds were unearthed during the excavation of two sites in Molnár Street (Budapest), led by the archaeologists of the Budapest History Museum. As the construction works of a new hotel took place on a registered archaeological site, and historical monuments of the city were expected to be found, the presence of archaeological professionals became essential. Even though the location was inhabited for centuries, the early modern and medieval layers were found unaffected.

Because of the nature of the site, the wet and muddy soil layers along the Danube provided a favourable environment for the preservation of organic materials and metals. As the climatic conditions in the Carpathian Basin are less favourable for the survival of organic material, the findings are very special both on a local and a broader regional level. In the Middle Ages, the Danube flowed over a much wider area than it does today. Today's embankment was often under water due to its proximity to the river, especially in the days before its regulation. The population, accustomed to the threat of spring floods, built their houses much further inland and along the river. Only urban landfills and, in safer times, ports and loading docks were established.

The aim of this paper is to specify past ground levels along the river, and changes in the water levels as well as the path of the Danube, with the help of as many environmental archaeological methods as possible. Similar research was already conducted on Margaret Island, in Vác and in Visegrád, so this new case study is hoped to be a useful contribution to reconstructing past landscapes along the river.
The parliamentary margin of movement for strengthening the role of historical dimensions in interpretation and law-making: The case of Hungary
Authors: Gera Anna , Szentgáli-Tóth Boldizsár
Published: June 2023

When the historical dimension of the Hungarian public law is assessed, usually the analysis of the constitutional court case law is highlighted; however the Parliament might have an equally important weight. Article R) of the Fundamental Law provides two crucial references to the historical constitution: the clause of paragraph (3) which mentions the achievements of the historical constitution, and paragraph (4) which imposes the duty on all bodies of the Hungarian state to protect the constitutional identity of Hungary laid down in 22/2016. (XII. 5.) ruling of the Hungarian Constitutional Court. These two provisions are also binding for the Parliament to take into account the historical development of the current legal system during all of its legislative activities. In our view, this duty is more extensive than the examination of certain historical laws; the whole historical development of a legal field should be considered as regard the content of laws; the circumstances of their enactment, their special meaning during each historical period. In our contribution, those already known examples are enumerated, when the Hungarian Parliament relied explicitly on the achievements of the historical constitution, and how broad is the parliamentary space of manoeuvre in this regard. Our focus is to identify such alternative legal instruments, which could strengthen the role of historical arguments in the parliamentary practice. Certain elements of the legislative process will be considered (committee meetings; impact assessment of laws, the potential second chamber), while certain components of the laws will be also assessed (preambles, reasonings of laws, parliamentary resolutions).