bluuebunny/crossref_metadata_2025 huggingface dataset:
Efficient Hydrogen Production on Crystalline-Amorphous Heterostructured Cobalt Boride-Phosphite Electrocatalyst
Authors: Nsanzimana Jean Marie Vianney , Ogolla Charles Otieno , Farahbakhsh Nastaran , Sakalli Yilmaz , Hepp Marco , Frohne Jonas , Sebastian Scheld Walter , Killian Manuela Sonja , Butz Benjamin
Published: February 2025

Targeted phase engineering of nanomaterials through non-equilibrium synthesis strategies provides a rich platform for the development and tuning of nanostructured catalysts with outstanding properties and life-time. Unconventional phases or even complex heterostructures play a crucial role in the performance of catalysts for efficient water electrolysis. By utilizing a controlled, iterative reduction synthesis route, a tailored binder-free cobalt boride-phosphite electrode (CoxB-[0.2]P-O) with mixed crystalline-amorphous phases is developed. The tailored cobalt chemistry, hierarchical morphology and mixed phases synergistically enhance the catalytic activity for hydrogen evolution reaction (HER). Those electrodes exhibit platinum-like HER performance with an overpotential of 33 mV at the standard current density of 10 mA cm-2, with excellent intrinsic kinetics and enhanced electron transfer in an alkaline 1M KOH electrolyte. Comprehensive microstructure and spectroscopic analyses proved the success of the one-pot strategy to modulate the chemistry of cobalt by incorporating boron and phosphite. Moreover, the tailored formation of nanostructures with locally varying morphology by the co-existence of amorphous and crystalline phases on the nanometer scale is confirmed. This approach facilitates the rational design for tuning the metal boride-based catalysts’ activity for hydrogen evolution by tailored chemistry of the metal active centers and thus the phase engineering of similar nanomaterials while avoiding the necessity of any post-synthesis thermal treatment processes.
Conversion of Waste Polyolefins into Liquid Fuels via a Two-Step Thermal Oxidation and Photocatalytic Process
Authors: Kang Hyotaik , Ni Siting , Perepichka Inna , Lennox R. Bruce , Li Chao-Jun
Published: February 2025

Each year, vast quantities of fossil fuel reserves are processed to produce a range of polymers, with polyolefin such as polyethylene and polypropylene constituting the majority. Despite their widespread production, only a small fraction of these polymers is recycled, leading to massive plastic waste worldwide. Conventional depolymerization processes are highly endothermic, energy-intensive, and non-selective, rendering them economically unfeasible. Here, we report the conversion of various polyolefins into high-value liquid fuel products via a relatively simple microwave-assisted step combined with a visible-light mediated AuCoOx/GaN catalyst. The one-pot, two-step protocol demonstrates a sustainable approach to plastic upcycling with applications using mixed polymers and post-consumer single-use plastics without the need for pre-sorting, thereby contributing to a circular carbon economy and an alternative pathway to plastic valorisation.
Tetracarboxylic aromatic acid-based self-healing metallosupramolecular flexible nano-scaffold: Exploring rheological features, stimuli-responsiveness and anti-bacterial efficiency
Authors: Dey Biswajit , Sadhu Subhajoy , SAHA DEBLINA , Behera Sai Jyoti , Kundu Anupam , Kumar Ritu Ranjan , Yatirajula Suresh Kumar , Rath Jnanendra
Published: February 2025

Tetracarboxylic acid-directed formation strategy of Zn(II)-metallogel has been achieved through supramolecular interactions among gel-forming Zn(II) acetate dihydrate, pyromellitic acid and N,N′-dimethyl formamide (DMF). Role of pyromellitic acid as low molecular weight gelator in forming stable Zn(II)-metallogel has been established through the work. Mechanical stability of Zn(II)-metallogel has been characterized through several rheological analyses including frequency sweep, strain sweep, time sweep (i.e., thixotropic analysis), and Creep recovery tests. The morphological feature of the xerogel sample of Zn(II)-metallogel gets scrutinized through field emission scanning electron microscopy (FESEM) investigation. The elemental analyses associated to FESEM system has also been performed for getting the role of different metallogel-forming chemical ingredients. The stimuli-responsiveness of the prepared metallogel has been deciphered by applying several influences like mechanical shaking, sonication, heating effect, chemical factors like acid, base, UV-light exposure. The metallogel construction pathway has been explored through the employment of FT-IR and ESI-Mass spectral analyses. The biological effectiveness of the metallogel is also explored. Different kinds of bacteria including Gram +/- ve species such as Bacillus cereus (ATCC 13061), Listeria monocytogenes (MTCC 657), and Staphylococcus aureus (MTCC 96), Salmonella typhimurium (MTCC 98) and Escherichia coli (MTCC 1667) are subjected for exploring the bioactivity of synthesized Zn(II)-metallogel.
The Role of Ethanol in Lithium-Mediated Nitrogen Reduction
Authors: Westhead Olivia , Tort Romain , Douglas James O. , Conroy Michele , Davies Bethan J. V. , Winiwarter Anna , Faisal Aishah , Spry Matthew , Khobnya Artem , Ryan Mary P. , Titirici Maria-Magdalena , Jervis Rhodri , Stephens Ifan E. L.
Published: February 2025

Although the Haber-Bosch process for industrial ammonia production is hailed by many as one of the most influential breakthroughs of the 20th century, its decarbonisation and decentralisation remain a critical challenge. One of the most promising and fast improving approaches is electrochemical nitrogen reduction mediated by lithium. However, the impact of electrolyte configuration on the formation of the Solid Electrolyte Interphase (SEI) and its effect on selective nitrogen reduction is still elusive. In particular, the role of commonly added, supposedly sacrificial, proton donors on SEI chemistry and morphology remains a mystery. In this work, the impact of ethanol concentration in a 1 M LiNTf2 in THF electrolyte on SEI properties and nitrogen reduction is analysed via a multi-pronged characterisation approach. Post-mortem surface analysis via X-ray photoelectron spectroscopy shows a dependence in the relative proportion of LiF and Li2O on ethanol concentration, while depth profiling measurements via cluster source time-of-flight secondary ion mass spectrometry reveals increasing SEI electrolyte permeability at higher ethanol concentrations. Cryogenic electron microscopy measurements show a reduction in SEI thickness with increased ethanol concentration, as well as increased SEI homogeneity. Lithium metal is also observed only in ethanol free condition. Analysis of bulk SEI components via titration corroborates the observation of lithium metal in cryo-microscopy measurements, as well as showing an increase in bulk Li2O/LiOH content with ethanol concentration. A narrow ‘Goldilocks’ region is revealed, where the SEI has just the right properties for efficient nitrogen reduction.
Quantum-Driven Amplification in Toroidal Graphene - From Theory to Industrial Validation
Authors: Meza Olga , Tallhem Soren
Published: February 2025

Toroidal graphene (tG) represents a breakthrough in nanostructures, combining unique geometric properties with quantum-driven electromagnetic amplification. Classical Maxwellian theory predicts a curvature-induced amplification factor (AF) of 30,000 for tG, while Plasmon Hybridization Theory (PHT) elevates the theoretical AF to an experimentally validated 3e9, highlighting tG’s extraordinary capacity for field enhancement. This amplification expands van der Waals (vdW) interactions within bronze matrices from approximately 0.9 nm to 130 nm, enabling ultralow tG concentrations of 0.005 wt%. The material exhibited a 458% improvement in wear resistance and a 78.2% reduction in CO₂ emissions compared to standard cast lead-free bronze. This study bridges theoretical modeling and industrial validation, demonstrating the potential of tG as a transformative additive in sustainable and high-performance metallic composites.
STRUCTURAL RELAXATION AND DIFFUSION OF THE LABILE COMPONENT IN NON-STOCHIOMETRICAL CUPRATES ReBa2Cu3O7-Δ (Re = Y, HO) AND ASSOCIATED OXIDES (overview)
Authors: Pashchenko L. O. , Chykina O. L. , Vovk R. V.
Published: February 2025

The paper investigates the effect of annealing at room temperature on the electrical resistance in the ab-plane ρab(T) of ReBa₂Cu₃O₇-δ (Re = Y, Ho) single crystals with oxygen deficiency. It was found that the reduction of oxygen content induces phase segregation, accompanied by the diffusion of a labile component and structural relaxation in the sample volume, confirming the critical role of oxygen deficiency in determining the structural and electrophysical properties of these materials.

Annealing at room temperature with varying oxygen deficiencies results in an expansion of the linear range of ρab(T) and a narrowing of the temperature region where the pseudogap regime occurs, highlighting the importance of oxygen concentration in forming the electronic structure. Excess conductivity follows an exponential temperature dependence over a broad temperature range, indicating the presence of nonlinear effects. The pseudogap temperature dependence is well described within the BKD-BEK crossover theory, confirming a transition between two modes of material behavior.

Replacing yttrium with holmium (Re = Ho) affects the charge distribution in the CuO planes, leading to disorder in the oxygen subsystem, which alters the electronic structure, manifesting as shifts in temperature regions corresponding to metal-insulator transitions and pseudogap anomaly. Thus, the results demonstrate that controlling the oxygen content and chemical composition of ReBa₂Cu₃O₇-δ crystals is an effective method for managing their electrophysical properties. The obtained short-range interatomic potential values can also be used for systematic studies of the complex behavior and defect chemistry of these materials at the atomic level. The use of "atomic scale techniques" allows not only for improving the physicochemical parameters of various rare earth oxides (REO) compounds but also for validating the adequacy of numerous current theoretical studies.
PECULARITIES OF HIRST EXPONENT ESTIMATION FOR NATURAL PHYSICAL PROCESSES
Authors: Lazorenko O. V. , Onishchenko A. A. , Taranova I. A. , Udovenko M. A.
Published: February 2025

In bounds of the non-linear and system paradigms, been formulated by L. F. Chernogor in the last 1980th, all processes in open, non-linear, dynamical systems are very complex, non-linear, ultra-wideband or fractal ones.

According to the fractal paradigm put forward in the early 2000s by V. V. Yanovsky, fractality is one of the fundamental properties of the surrounding world. Therefore, the study of fractal characteristics, in particular, of natural physical processes is actual, interesting and useful.

The fractal dimension based on the Hurst exponent is one of the oldest and most famous ones. Based on the study of model fractal signals, it is demonstrated that the dependence between the estimate of the Hurst fractal dimension, obtained by the normalized range method, and its true value is significantly non-linear. To decrease of influence of the errors arising as a result of this, it is proposed to use the method of the corrective function.

The practical effectiveness of the proposed method is demonstrated on the example of the analysis of experimental results obtained in the middle 1960s by H. E. Hurst, which discovered the presence of a somewhat strange grouping of the values of the Hurst fractal dimension around the value of 1.27 for various natural physical processes. A hypothesis about the possibility of explaining this fact precisely by the nonlinearity of the mentioned dependence for R/S-method was proposed.
EVOLUTION OF THE TEMPERATURE DEPENDENCES OF ELECTRICAL RESISTANCE OF Y1-XPrXBa2Cu3O7-δ SINGLE CRYSTALS IN A WIDE RANGE OF APPLIED PRESSURE AND CONCENTRATIONS OF PRASEODIUM IMPURITIES
Authors: Hadzhai G. Ya. , Korshak V. F. , Revyakina M. G. , Chykina O. L. , Komisarov A. O. , Vragov O. Yu. , Du Junyi , Pashchenko L. O. , Vovk R. V.
Published: February 2025

The effect of high hydrostatic pressure 0 ≤ Р ≤ 17 kbar on the electrical resistance ρ(Т) in the basic ab-plane of praseodymium-doped single crystals of the Y1–xPrxBa2Cu3O7–δ system at 0 ≤ х ≤ 0.34 was investigated in the paper. Single crystals of compounds Y1–xPrxBa2Cu3O7–δ were grown by solution-melt technology in a gold crucible. Hydrostatic pressure was created in a piston-cylinder multiplier. The pressure was determined with a manganin manometer, and the temperature – with a copper-constantane thermocouple.

It was established that an increase in pressure leads to an increase in the critical temperature of the studied compounds and a decrease in their electrical resistance, which corresponds to literature data for polycrystalline samples. Near the superconducting transition, the appearance of the temperature derivatives of the electrical resistance, dr/dT, of the Y1–xPrxBa2Cu3O7–δ compounds indicates a certain heterogeneity of the samples, i.e., the presence of areas in the samples with different temperatures of the superconducting transition, Tс, which transition to the superconducting state as Tс is reached. At intermediate concentrations of praseodymium, such regions pass into the superconducting state sequentially, but at x = 0 and x = 0.34, the form dr/dT indicates the presence of percolation paths for the flow of the transport current. The value of Tc and literature data on the Debye temperature indicate that the McMillan formula can be applied only to compounds Y1–xPrxBa2Cu3O7–δ that have Tc < 65 K (that is, for x, d > 0.3), and at the same time gives a very high values of the electron-phonon interaction constant, l ~ 1. It was found that, in contrast to pure YBa2Cu3O7–δ samples with optimal oxygen content, the application of high pressure leads to a multiple increase in the value of the baric derivative dTc/dP. It was established that within the limits of experimentally achieved pressures, there was no change in the sign of baric derivatives dTc/dP with increasing pressure, which was observed on polycrystalline samples with close values of praseodymium concentration. The possible mechanisms of the effect of high pressure on the critical temperature of the transition to the superconducting state Tc are discussed, taking into account the features in the electronic spectrum of carriers.
EFFECT OF HIGH PRESSURE ON TEMPERATURE DEPENDENCE OF PSEUDOGAP IN Y0.66Pr0.34Ba2Cu3O7-δ SINGLE CRYSTALS
Authors: Hadzhai G. Ya. , Korshak V. F. , Savich S. V. , Du Junyi , Vovk R. V.
Published: February 2025

The paper investigates the effect of high hydrostatic pressure on the conductivity, s(T), in the basic ab-plane of the HTSC single crystal Y0.66Pr0.34Ba2Cu3O7–δ. The YBa2Cu3O7–δ single crystal was grown using the well-known solution-melt technology. Y2O3, BaCO3, CuО and Pr5O11 compounds were used in the appropriate percentage ratio as initial components for growing Y0.66Pr0.34Ba2Cu3O7–δ single crystal. The modes of growth and oxygen saturation of the Y1–xPrxBa2Cu3O7–δ crystal were the same as for undoped single crystals. Electrical resistance in the ab-plane was measured according to the standard 4-pin method. Hydrostatic pressure was created in a piston-cylinder multiplier. The temperature dependences of the specific electrical resistance, r(Т), of the studied single crystals in the ab-plane in the temperature range Tc–300 K at pressures of 0–10 kbar were obtained experimentally. At all applied pressures, the experimental curves r(T) contain linear sections at temperatures T > T*. When T < T*, the r(T) curves deviate downward from their linear extrapolation, i.e., excess conductivity, Ds(T), appears in the studied samples. It was established that Ds(T) of the samples in a wide temperature range Tf < T < T* are characterized by an exponential temperature dependence Δs ~ (1–Т/Т*)exp(Δ*ab/T), where T* is the mean-field temperature of the superconducting transition, and can be interpreted in terms of the BCS-BEC crossover theory. Using this ratio, the temperature dependence of the pseudogap, Δ*ab(T), from T* to the temperatures corresponding to the maximum value of the pseudogap was constructed. An increase in the applied pressure leads to the effect of narrowing the temperature interval of realization of the pseudogap (PG) mode and, as a result, to the expansion of the interval of the linear dependence of the specific electrical resistance in the ab-plane. As the pressure increases, the temperature dependence of the pseudogap shows a crossover from the dependence of the BCS type to the dependence of the BEK type.
Sathya Indra's Creative Process in Creating Song: Case Study of the Influence of Social Environment on Creativity in Creating Songs
Authors: Septiawan Dhany , Setiyono Budi
Published: February 2025

The process of creativity can be interpreted as an activity before the creation of an idea, or a stage before producing a new discovery and finding previously existing relationships. This study aims to reveal the process of creativity carried out by Sathya Indra in creating songs, several studies conducted by previous researchers have discussed more about a creative process that specifically focuses on relying on individual innovation, but in this study tries to describe how the creative process of an individual music artist is influenced by his socio-cultural environment. The approach in this study uses a qualitative descriptive analysis method. This method seeks to answer the challenge of understanding, providing interpretation and empirical phenomena combined with a system of logic and truth values, as well as the applicable context through direct observation. The stages in finding data for this study were observation, interviews, documentation and document studies. Sathya Indra is a young musician who is known by the wider community after creating many songs. In making his songs, Indra gets his ideas and inspiration from social cultures and from what he sees, most of his songs talk about the love life of young people, seeing from the conflicts experienced, from these events Indra gets his creative ideas in making lyrics for his songs. The content of this study includes Sathya Indra's artistic position, stages of creating songs, forms and results of creativity and the influence of the environment on the structure of the song. The conclusion of this study attempts to describe how the creative process of an individual music artist is influenced by the environment.
Cultural Arts Teachers' Creative Strategies In Enhancing Students' Creativity And Motivation Through Ensemble Music Learning
Authors: Widyaswara Silvana Nada , Suharto Suharto , Lestari Wahyu
Published: February 2025

This study explores the role of creativity of art and culture teachers in teaching music ensembles at SMP Regina Pacis Surakarta. Creativity is an important element in developing students' musical skills and values, such as cooperation, discipline, and appreciation for cultural arts. Using a qualitative approach with an exploratory research design, this study reveals the strategies and methods used by teachers to guide students in creating unique and high-quality music ensembles. The results show that the teacher, Mr. Nugroho Purna Widiyanto, S.Pd., implements creative teaching methods such as demonstration, practice, and peer tutoring, as well as creatively arranging traditional songs to enhance students' interest and understanding of music. This research emphasizes the importance of a creative approach in teaching music to motivate and inspire students, as well as help them develop strong musical abilities and character.
Early Childhood Science Literacy Through Project Learning Using Loose Parts
Authors: Sakina  , Hapidin  , Nurani Yuliani
Published: February 2025

Abstract
Science literacy in early childhood is essential for building scientific understanding and skills that will continue throughout life. This article discusses the use of project learning utilizing loose part media as an effective method to improve children's science literacy. Loose parts, which include a variety of natural and artificial materials that are flexible in their use, provide opportunities for children to be creative and explore science concepts directly. This study uses the Action Research method, this study involves teachers directly in improving classroom learning practices. This study was conducted at TK Aisyiyah Bustanul Athfal 27 Depok. Data collection techniques were carried out through triangulation (interviews, observation and documentation). The technique used is purposive sampling through project learning, children are involved in the process of identifying problems, planning, data collection, analysis, and presentation of results. This approach encourages critical thinking skills, collaboration, and increases curiosity and creativity. The resulting data is processed using the Miles & Huberman Interactive Model. The results of the implementation of this method show an increase in children's understanding of science concepts and practical skills. Thus, loose parts-based project learning has proven to be an effective means to support science literacy in early childhood.
 
Abstrak
Literasi sains pada anak usia dini sangat penting untuk membangun pemahaman dan keterampilan ilmiah yang akan berlanjut sepanjang hidup. Artikel ini membahas penggunaan pembelajaran proyek yang memanfaatkan media loose parts sebagai metode efektif untuk meningkatkan literasi sains anak. Loose parts, yang mencakup berbagai bahan alami dan buatan yang fleksibel dalam penggunaannya, memberikan kesempatan bagi anak untuk berkreasi dan mengeksplorasi konsep sains secara langsung. Penelitian ini menggunakan metode Action Research, penelitian ini melibatkan guru secara langsung dalam meningkatkan praktik pembelajaran di kelas Penelitian ini dilakukan di TK Aisyiyah Bustanul Athfal 27 Depok. Teknik pengumpulan data dilakukan melalui triangulasi (wawancara, observasi dan dokumentasi). Teknik yang digunakan adalah purposive sampling melalui pembelajaran proyek, anak-anak terlibat dalam proses identifikasi masalah, perencanaan, pengumpulan data, analisis, dan presentasi hasil. Pendekatan ini mendorong keterampilan berpikir kritis, kolaborasi, serta meningkatkan rasa ingin tahu dan kreativitas. Data yang dihasilkan diolah menggunakan Model Interaktif Miles & Huberman. Hasil implementasi metode ini menunjukkan peningkatan dalam pemahaman konsep sains dan keterampilan praktis anak. Dengan demikian, pembelajaran proyek berbasis loose parts terbukti sebagai sarana efektif untuk mendukung literasi sains pada anak usia dini.
Kata kunci: Literasi Sains; Pembelajaran Proyek; Loose Parts
Denotative-nominative classification of English pictonyms
Authors: Khadzhylii Tetiana
Published: February 2025

The article is devoted to the study of the denotative-nominative classification of English pictonyms, proper names of paintings. The purpose of this investigation is to explore the denotative-nominative classification of English pictonyms. English ideonyms are the object of the research. The subject is English pictonyms as a subtype of ideonyms. One hundred English pictonyms were selected as the material for this research from the catalogues of the National Gallery (London), the National Gallery of Art (Washington, D.C.), and specialized art websites. Ideonyms are divided into seven subclasses, including artionyms, biblionyms, geortonyms, poetonyms, hemronyms, documentonyms, and chrononyms. A pictonym is a subclass of imageonym, which is a subclass of artionym. During the study, a descriptive method is used for analyzing actual materials, a sampling method is employed to select the material of investigation from art gallery catalogues and websites, and a statistical method – for counting the number of analyzed units.
Kształcenie dualne w Krajowej Szkole Administracji Publicznej
Authors: Grzebielucha Jacek
Published: February 2025

Wiosną 2023 roku wprowadzono w służbie cywilnej wiele zmian. Większość ma charakter korekcyjny, jednak zaprezentowanie nowego trybu kształcenia w Krajowej Szkole Administracji Publicznej – pozornie najbardziej nieistotnej z nowelizacji – może stanowić ciekawy przykład bezpiecznej zachęty do samorozwoju pracowników Korpusu Służby Cywilnej. W niniejszym opracowaniu przedstawione zostało porównanie trybów kształcenia w Krajowej Szkole Administracji Publicznej, a także alternatywne ścieżki rozwoju kadr szeroko rozumianej sfery budżetowej. Analizie poddane zostały źródła publicystyczne oraz przepisy prawa krajowego, a także interpretacje przepisów z komentarzy.
O roli literatury w kształtowaniu cnót wśród sędziów
Authors: Zaorski Adrian , Iwanowska Ewa
Published: February 2025

Niniejszy artykuł skupia się na relacji prawa oraz literatury, przez analizę wpływu beletrystyki na sędziów stosujących prawo. Głównym celem jest pokazanie pozytywnego wpływu, jaki literatura piękna może mieć na stosowanie prawa przez sędziów poprzez ich edukację moralną, a także umożliwienie im rozwoju cnót sędziowskich. Punktem wyjścia rozważań jest problem tzw. trudnych przypadków oraz pokazanie przez ich pryzmat wymogu wiedzy wykraczającej poza tę bezpośrednio związaną z prawem. W tym zakresie odwołano się również do pojęcia „doświadczenia życiowego”, celem pokazania, że potrzeba wiedzy pozaprawnej wśród sędziów dotyczy również typowych sytuacji. Następnie od wołano się do nurtu filozoficznoprawnego jurysprudencji cnót. Dzięki odwołaniu się do instrumentów teoretycznych etyki cnót wskazano na metacnotę mądrości praktycznej jako dyspozycję niezbędną do dobrego pełnienia funkcji sędziego. Szczególny nacisk położono na składającą się na nią skromność epistemiczną, rozumianą jako świadomość ograniczeń swojej ekspertyzy oraz chęć jej poszerzania. Następnie opisano, w jaki sposób literatura jest użytecznym narzędziem promującym nabywanie tej cnoty. Na powyższej podstawie wysnuto wnioski dotyczące pozytywnego wpływu literatury na rozwój moralny sędziów, a przez to i stosowanie przez nich prawa. Naczelną metodą wykorzystywaną w niniejszym artykule jest metoda analityczna, dogmatycznoprawna oraz aplikacja teorii etyki cnót.
Posejdon w romansach epoki Komnenów
Authors: Mikuła Maksymilian
Published: February 2025

W swoim artykule autor bada, jak w romansach powstałych w epoce Komnenów przedstawiony został grecki bóg Posejdon. Autor analizuje trzy z czterech powstałych w tym okresie romansów: Drosillę i Chariklesa Niketasa Eugenianosa, Rodante i Dosyklesa Teodora Prodromosa oraz Hysmine i Hysminiasza Eustathiosa Makrembolitesa. Tekst rozpoczyna się od krótkiego przybliżenia historii oraz części cech tego gatunku literackiego. Autor porusza również problematykę nazwy gatunku. W dalszej części pracy badacz analizuje kolejne fragmenty wyżej wymienionych romansów, porównując je z dziełami antycznymi, w których występuje grecki bóg morza. Tym samym rekonstruuje on wizerunek bóstwa przedstawiony w romansach epoki Komnenów. Jednocześnie bada, jaką rolę Posejdon pełni w tych utworach literackich. Szczególnie ważną częścią artykułu jest omówienie stosunku Posejdona do tytułowych bohaterów w analizowanych utworach.
Wyobrażenie idealnego lidera a jego płeć. Raport z badania
Authors: Kaliński Tomasz , Kąkol Wiktoria , Kopiejć Weronika
Published: February 2025

Dotychczasowe badania wskazują, że stereotyp lidera wiąże się ze stereotypem męskości, w który wpisują się cechy sprawcze. Celem badania było sprawdzenie, czy na wyobrażenie idealnego lidera wpływa jego płeć, tj. czy od kobiet liderek i mężczyzn liderów będzie oczekiwać się tych samych cech i stylów zarządzania. Przeprowadzono eksperyment składający się z trzech warunków. W warunku kontrolnym osoby badane otrzymały kwestionariusz nieokreślający płci lidera, w warunku drugim kwestionariusz dotyczył liderki, a w trzecim – lidera płci męskiej. Badani oceniali ważność cech z wymiarów sprawczości i wspólnotowości oraz oczekiwany styl zarządzania – demokratyczny i autokratyczny. W badaniuwzięło udział 90 studentów. Okazało się, że płeć nie różnicuje wymagań wobec lidera, zarówno od kobiet, jak i od mężczyzn oczekuje się tych samych cech i stylów zarządzania. We wszystkich warunkach badani oceniali cechy sprawcze jako ważniejsze od cech wspólnotowych. Uzyskane wyniki mogą okazać się przydatne w dyskusji na temat rozkładu płci na stanowiskach kierowniczych.
On C-compact orthogonally additive operators
Authors: Dzhusoeva N. A. , Valgasov Z. S.
Published: February 2025

It is shown that the set of all C-compact orthogonally additive operators from a vector lattice E to an AM-space F is a vector lattice and the lattice operations can be calculated by the Riesz–Kantorovich formulas. Moreover, a positive AM-compact orthogonally additive map defined on a lateral ideal of a vector lattice E and taking values in an AM-space F can be extended to the whole space E.
Free boundary problem for a system of parabolic equations of the reaction-diffusion type
Authors: Rasulov M. S.
Published: February 2025

This paper considers a free boundary problem for a system of quasi-linear parabolic equations in one dimension. Nonlinear problems with a free boundary are studied using a method based on constructing a priori estimates. For the solutions of the problem, apriory estimates of Shauder type are established. On the base of apriory estimates, the existence and uniqueness theorems are proved.
Development of Augmented Reality Applications as Learning media for Machine Assembly and Installation
Authors: Ardhiyanto Firmansah Dwi , Tuwoso Tuwoso , Widiyanti Widiyanti , Marsono Marsono
Published: February 2025

There are several courses at the State University of Malang, Faculty of Engineering, Mechanical Engineering Department, one of which is Machine Assembly and Installation which studies knowledge related to management, procedures and materials used to assemble and install machines. The learning process is not optimal because there is no demonstration of the use of lifting aircraft due to limited availability. Therefore, learning media innovations are needed that aim to contain comprehensive material and visualizations lifting aircraft in 3D. Digital AR learning media that is easy to operate by students flexibly. Developing augmented reality-based learning media on lifting aircraft for engine assembly and installation courses and testing its feasibility are the objectives of this study. This development uses the ADDIE model. The results of this study are as follows: (1) material validation obtained a percentage value of 94.31%, which is classified as very feasible; (2) media expert validation showed the feasibility level with a percentage of 93.75%; and (3) the results of small group trials showed a very feasible level with a percentage of 90.12%. The implication of this research is to increase learning effectiveness, increase student learning motivation and facilitate teaching lecturers in the knowledge transfer process.
The Influence of Multimedia Learning and Students’ Learning Motivation toward Biology Learning Outcomes
Authors: H Nurhikmah , Lu'mu Lu'mu , Ridwan Muhammad
Published: February 2025

This study seeks into the effect of multimedia-based learning on the biology learning outcomes in the excretory system topic and influence of learning motivation on biology learning outcomes in the excretory system topic. This is a pre-experiment design without a control group, involving a sample of 20 students. The research procedure for this one-group pre-test-post-test pre-experiment consists of four stages: (1) preparation or planning, (2) implementation of research/observation, (3) processing and analyzing results and testing research hypotheses, and (4) drawing conclusions from the research findings. There is a significant impact of multimedia-based learning on the biology learning outcomes in the excretory system topic for eighth-grade students at a junior high school in West Sulawesi Province. 2. There is a significant influence of learning motivation on biology learning outcomes in the excretory system topic through the application of multimedia-based learning for eighth-grade students at a junior high school in West Sulawesi Province. The multimedia-based learning has a very significant effect on learning motivation because of understanding and better understanding of the retention of learning materials. Multimedia-based learning also allows students to learn in a more visual, auditory, and kinesthetic way. In this case, multimedia can help facilitate different learning styles in students, so that they can more easily understand and remember learning materials.
Development of a Digital Body Weight Scale Prototype with IoT-Based BMI Calculation and Real-Time Weight Tracking
Authors: Hasti Lubna Nadra , Permata Endi , Aribowo Didik
Published: February 2025

Obesity is a growing health concern in Indonesia, with its prevalence steadily increasing and contributing to a variety of non-communicable diseases such as diabetes and heart disease. One effective way to monitor and manage body weight is by regularly calculating the Body Mass Index (BMI). This study aims to develop a digital weighing scale prototype based on the Internet of Things (IoT), equipped with BMI calculation and real-time weight tracking features. The prototype utilizes load cell sensors, HX711, ESP8266, and an OLED display for measuring weight, which is then transmitted to a Flutter-based application (MyWeightApp) connected to Firebase for data storage and graphical visualization. The research adopts the waterfall model for system development, encompassing requirements analysis, planning, modeling, construction, and system handover. Hardware testing demonstrates an accuracy rate of 0.78% error, well below the 5% tolerance threshold. Software testing using black-box testing confirms that the application successfully tracks weight, calculates BMI, and provides effective weight progress graphs. The results of this study indicate that the IoT-based digital weighing scale prototype developed can serve as a practical solution for obesity prevention and health monitoring in Indonesia.
Optimizing Connectivity and Network Management with SDN Technology on VANET Using the SSF Method
Authors: Dinata Hane Yorda , Suranegara Galura Muhammad
Published: February 2025

Vehicular Ad-Hoc Networks (VANET) represent a crucial innovation in transportation technology, enabling vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication. However, VANET faces challenges such as signal fluctuations, data security issues, and high mobility, which affect network reliability. This study aims to optimize connectivity and network management in VANET using the Strongest-Signal-First (SSF) method supported by Software-Defined Networking (SDN). The research was conducted through simulations using Mininet-WiFi. The system was designed with two vehicles and four access points to evaluate the performance of the SSF method, focusing on quality of service (QoS) parameters such as data transfer, jitter, packet loss, and bandwidth. Data were collected over a 30-second simulation under varying bandwidth conditions. The results demonstrate that the SSF method effectively maintains communication reliability, achieving a maximum packet loss of only 0.05% and an average data transfer rate of 285 – 324 kB. However, the effects of fading and network dynamics caused fluctuations in minimum transfer rates (102 – 114 kB) and jitter (0.1 – 1.0 ms), particularly at lower bandwidths. The SSF method has proven to enhance communication stability in VANET. Nevertheless, challenges such as fading and high mobility require additional mechanisms to further improve network performance in dynamic environments.
REPRESENTATION OF SOVIET MANUALS IN SELF-MADE BOOKS-ANTHOLOGIES OF A RURAL TEACHER OF THE TRANS-BAIKAL REGION
Authors:   HSE University, Obukhov Aleksei S. , Popova Polina E. ,   HSE University, Filimonova Sofia A. ,   HSE University
Published: February 2025

The homemade anthology book is a little-studied didactic
genre today, although it represents an important source of empirical material for studying cross-sections of the era, the availability of information and
its selectivity in the context of local and general social history. One of the
relevant resources for searching for materials may be a Soviet textbook – it
represents social and normative positions on issues of history and culture.
During the expedition of the Higher School of Economics “Local history in
Schools of Trans-Baikal region” in June 2023, 9 selfmade books were found
in the school museum of the village of Kalinino in the Nerchinsky district
of the Trans-Baikal Territory. The books were created in the second half
of the twentieth century by Matvey Petrovich Koptelov, a history teacher
at the Kalinin School. He probably created them to collect and structure
information about history, literature, art, and prominent personalities.
Topic, personalities, and historical events selection analysis in comparison
with textbooks сonten from different years provides foundation to judge
the views and reading horizons of the rural intelligentsia representative in
the second half of the 20th century.
“WE’VE BEEN SCRATCHING LIKE ANIMALS FOR A LONG TIME NOW…”: SPECIFICITY OF THE ARTISTIC LANGUAGE OF PAVEL ZALTSMAN
Authors:   Russian State University for the Humanities, Ushakov Fedor V.
Published: February 2025

Pavel Zaltsman (1912–1985) – painter and film artist, writer and
poet. The article presents the artistic features of Pavel Zaltsman’s works. For a
long time, Zaltsman was known as an artist, a student of the founder of analytical
art, Pavel Filonov. The paintings of Pavel Zaltsman found their audience during his lifetime, but were inaccessible to the general public. Zaltsman’s literary
works (poems and the novel “Puppies”) became known and published only in
2011–2012. Researchers began to discover him recently, and many aspects of
his work remain poorly understood. The acquaintance of researchers with the
literary work of Pavel Zaltsman set the researchers the task of determining the
features of his innovative writing. One of the aspects that attracts researchers
in Zaltsman’s work is the problem of alternative expression in the conditions of
Soviet culture. The literary works of Pavel Zaltsman reveal principles that make
it possible to describe culture in the USSR in the 1930s–1950s in a new way.
DYSTOPIA OF DIY-URBANISM VS THE UTOPIA OF PARTISAN URBANISM
Authors:   Russian State University for the Humanities, Shamshadinov Ruslan E.
Published: February 2025

The article discusses modern microurban approaches to changing the urban environment. The concept of DiY-urbanism, which is based on
the idea of independent creativity of residents to improve the urban environment, is considered based on the study of cases – materials from the two-day
workshop “DiY-weekend in Kaliningrad. Designing urban spaces” (2016) and
the sociocultural phenomenon of housing and communal services art. This approach is contrasted with guerrilla urbanism – a utopia that involves informal
and unauthorized changes in urban space. An example of the implementation
of this approach can be considered one of the tallest private wooden buildings
in Russia – the Sutyagin House as an allegory of the utopian approach to
architecture. Consciously or unconsciously, all these approaches appeal to
symbolic reality and encourage the construction of a prototype of an ideal
future that can be realized in reality. And this impulse can be embodied both
in the discourse of utopia and in the discourse of dystopia. The article makes
an attempt to compare and analyze the noted microurban approaches, to
identify their features, in order to conceptualize the sociocultural phenomena
under consideration and actualize their influence on the formation of the
urban environment
PLACES OF OBLIVION. VISUALISING RUINS ON SOCIAL MEDIA
Authors:   Russian State University for the Humanities, Vikulina Ekaterina I.
Published: February 2025

This article focuses on the visualization of ruins in the digital environment, drawing on materials from Russian and international publications
dedicated to abandoned places. The main emphasis is on the visual practice
of “urban explorers” who share their photographs under the hashtag #urbex
(urban exploration). The article analyzes the visual strategies employed in representing ruins, as well as the phenomenon of their popularity in social media.
In contrast to “sites of memory” as conceptualized by Pierre Nora, which refer
to objects that connect the past and present through commemoration, deteriorating places can be described as “sites of oblivion” – a form of expulsion from
collective memory and societal life. While sites of memory may encompass ruins that hold significance for national identity, sites of oblivion refer to ruins on
the periphery of historical memory, which society has lost interest in. Followers of the UrbEx movement are particularly drawn to these forgotten places,
which they essentially rediscover for the world. Today, ruins have become
an integral part of visual culture, both in mass media and artistic expression,
aimed at individual expression. This is evident in disaster films, video games,
and the numerous photographs shared by bloggers, who replicate established
genre codes and reference widely circulating cultural texts. Images of ruins can
evoke the past, bearing witness to former grandeur, document present decline,
or serve as warnings of impending disasters. However, in these photographs,
different temporalities often intersect, overlap, and permeate each other. Abandoned artifacts trigger memories and evoke intersecting temporalities in the
imagination. The history of a place is shaped by experiences, memory, oblivion,
politics, encounters, and myth-making. This expands our understanding of the
urban environment as an ever-changing construct.
ПОЛИТОЛОГИЯ
Authors: Kuppayeva Botagoz
Published: February 2025

Учебник написан в соответствии с требованиями Типовой учебной программы модуля социально-политических знаний для организаций высшего и (или) послевузовского образования (социология, политология, культурология, психология).

В данном учебнике системно и комплексно исследованы теоретические и прикладные аспекты политической науки, осуществлен политологический анализ становления и развития таких проблем, как институт политического лидерства, политической элиты, политические партии, гражданского общества, политическая власть, политическая система, политический режим, политическая культура, государство, политические технологии, политическое прогнозирование, сравнительная политология, модернизация, идеология, культура, геополитика.

Учебник снабжен рекомендуемой литературой, контрольными вопросами, способствующими усвоению материала и выработке самостоятельного творческого мышления и умения разбираться в политических процессах и явлениях.
COMPANY'S FINANCIAL STATEMENTS AND THEIR ANALYSIS
Authors: Plaskova Natalia Stepanovna
Published: February 2025

The book contains theoretical, methodological and practical materials necessary for the study of the Financial Reporting course by students of higher educational institutions studying in the fields of Economics, Management, Finance and others. The textbook outlines modern methods and techniques that will help students understand the content of the company's financial statements, analyze the information contained therein, and assess the company's financial position, profitability, liquidity, and solvency. Along with the theory, the book presents practical calculations performed in a certain sequence according to the actual reporting of the production company in the format of case studies.

The book will also be of interest to practicing specialists in the field of financial management of the company, accountants, business analysts, and arbitration managers.
A Comprehensive Study on the Effectiveness of Physiotherapy in Managing Chronic Musculoskeletal Disorders
Authors: Aldossari Bajran Mohammad , Alshehri Dhafer Ali , Araigah Saleh Ahmed Abu , Alasmari Nasser Saad
Published: February 2025

A complete search of the relevant literature, a total of 4 hundred randomized medical trials were recognized so as to offer a summary of the scientific proof on the effectiveness of physiotherapy inside the treatment of continual musculoskeletal ailments (CMDs). To source the research, bibliographic databases, citation tracking, and expert guidance were utilized. Based on predefined criteria, 180 studies focusing on common musculoskeletal disorders (CMDs) were selected for further analysis. Several meta-analyses were conducted on prevalent chronic musculoskeletal disorders affecting the back, neck, shoulder, and knee. These clinical trials examined various treatments, including spinal manipulation, exercise therapy, traction, ultrasound, and laser therapy .Each randomized clinical trial was assessed using a methodological scoring system based on specific criteria and weighted characteristics. The evaluations were carried out by two or three independent reviewers, who were blinded to the study outcomes, publication details, and author identities to maintain objectivity. The quality of each trial was systematically graded according to its methodological rigor. During the assessment process, studies of the highest quality were prioritized to ensure the reliability of the findings. This approach helped maintain the integrity of the evaluation and contributed to a more accurate synthesis of the evidence regarding effective treatment options for CMDs.PT did reveal fulfillment for some of CMDs and remedy strategies, no matter the truth that the general methodological great of the pains turned into low, as indicated by way of the meta-analyses. although there have been some positive effects, there are numerous indicators that the information is ambiguous due to the presence of vast methodological flaws. this is the case despite the fact that there had been a few wonderful outcomes. however, those findings do not show that physiotherapy isn't useful; as a substitute, they best reveal that we want greater rigorous research to demonstrate its fee inside the remedy of CMD.
HİZMET SEKTÖRÜNDE ELEKTRONİK BİLGİ SİSTEMİ KULLANIMININ HİZMET KALİTESİNE ETKİSİNİN BENCHMARKİNG YAKLAŞIMI İLE ÖLÇÜLMESİ VE BİR DİNLENME TESİSİNDE UYGULAMASI
Authors: Ersöz Olcay Özge , Aktepe Adnan , Ersöz Süleyman , Türker Ahmet Kürşad
Published: February 2025

Bilgi sistemi teknolojilerindeki hızlı gelişmeler hizmet işletmelerini de etkilemekte olup her geçen gün yeni rekabet stratejileri ortaya konulmaktadır. Rekabet üstünlüğü sağlamada hizmet kalitesi en önemli parametrelerden birisidir. Hizmet kalitesinin ölçülmesi hizmetlerin özgün karakteristikleri nedeniyle somut ürünlerin (mal) kalitesini ölçmekten daha zor olmaktadır. Hizmet kalitesinin ölçümüne yönelik literatürde pek çok model yer almasına rağmen, hizmet sunumunun klasik ve dijital bir uygulama ile kıyaslamasını içeren çalışmalar çok yaygın değildir. Bu çalışma ile hizmet kalitesindeki değişimin kıyaslama (benchmarking) yaklaşımı ile ölçülmesi amaçlanmaktadır. Bu amaçla tasarlanan model, müşterilerin taleplerini elektronik bilgi sistemi tabanlı tablet sistemi ile almaya başlayan bir hizmet işletmesinin, bu yeni durumun hizmet kalitesine ne kadar yansıdığını öğrenmek istemesi ile ortaya çıkmıştır. İşletmede gerçekleştirilen sistem analizi ile sağlanan verilere dayalı olarak, Uygulama bir dinlenme tesisinde gerçekleştirilmiştir. Bu dinlenme tesisi, lojistik hizmetlerinin önemli bir sağlayıcısı olan kamyon ve tır şoförlerinin hizmet aldığı bir tesistir. Tesis adisyon sisteminden dijital sisteme yeni geçmiş olup yeni sistemin hizmet kalitesine yansımasını ölçülmeye yönelik bir çalışma gerçekleştirilmiştir. Hizmet kalitesi değişim oranı 3 farklı boyut üzerinden hesaplanmış ve tüm boyutların ortalama değişim oranı % 21,83 olarak tespit edilmiştir. Elde edilen sonuç bir hizmet işletmesi olan restoranlarda belirlenen boyutlar üzerinden klasik adisyon sistemi ve dijital sistem arasındaki müşteri algısında oluşan hizmet kalitesi değişim düzeyini göstermektedir. Bu çalışmada geliştirilen metot mevcut hizmet kalitesinin değişim düzeyini belirlemek için farklı hizmet işletmelerinde kullanılabilir.