bluuebunny/crossref_metadata_2025 huggingface dataset:
Hubungan Anemia Pada Ibu Hamil Dengan Berat Badan Bayi Di RSUD Dr. H. Soewondo Kendal
Authors: Aulia Putri Desmatika , Kartika Ishartadiati  , Andra Agnez Al Aska  , Sukma Sahadewa
Published: December 2024

Penelitian ini dilatarbelakangi dengan adanya peningkatan prevalensi anemia yang terjadi pada ibu hamil yaitu menurut (Riskesdas) tahun 2013 menyatakan bahwa peningkatan prevalensi anemia pada ibu hamil meningkat dari 37,1% menjadi 48,9%. Sedangkan di Provinsi Jawa Tengah prevalensi anemia pada ibu hamil sebesar 43,5%. Dampak yang ditimbulkan akibat seorang ibu hamil menderita anemia yaitu menghambat tumbuh kembang janin yang di kandungnya Selain itu, dapat menyebabkan terjadinya perdarahan pada saat proses persalinan, bayi terlahir dengan berat badan yang kurang, penurunan kecerdasan, imunitas bayi menurun dan mudah menderita gizi buruk. Tujuan Penelitian ini untuk mengetahui hubungan anemia pada ibu hamil dengan angka berat badan bayi baru lahir di RSUD Dr. H. SOEWONDO KENDAL Tahun 2020 – 2021. Pengambilan data menggunakan metode data set statistik yang merupakan penggunaan data yang sudah tersedia atau disebut data sekunder. Sedangkan, uji data menggunakan metode uji Spearman Rank. Hasil: Hubungan anemia pada ibu hamil dengan angka berat badan bayi baru lahir dapat diketahui dari nilai signifikansi, dimana nilai signifikansi pada penelitian ini menggunakan uji Spearman Rank, yaitu 0,707 (p=0,707) dimana jika dibandingkan dengan nilai α=0,05 maka p > 0,05. Kesimpulan: Penelitian ini menunjukkan bahwa tidak ada hubungan anemia pada ibu hamil dengan angka berat badan bayi baru lahir.
Factores que potencializan la educación virtual en una etapa Post-Covid
Authors: Amaya Amaya Arturo , Cantú Cervantes Daniel , Hernández Almazán Jorge Arturo
Published: December 2024

El objetivo de esta investigación fue identificar los factores de mayor incidencia que potencializaron la educación virtual en la Universidad Autónoma de Tamaulipas, durante la pandemia por Covid-19. Se trabajó en un enfoque cuantitativo con diseño transeccional descriptivo con alcance correlacional por el enfoque analítico y tipos de datos usados. Se utilizó la escala de Satisfacción, Interacción, Autosuficiencia y Aprendizaje Autorregulado en cursos virtuales de Kuo et al. (2014), la cual analiza: Interacción estudiante-estudiante, Interacción estudiante-instructor, Interacción estudiante-contenido, Autoeficacia en el uso de internet, Aprendizaje autorregulado y Satisfacción sobre el curso virtual. Los resultados mostraron que la mayor parte de los estudiantes (muestra estratificada n = 3604, Edad M = 20.49, DE ± 0.552, Min = 18, Max = 28) presentaron niveles altos de satisfacción en los cursos en línea y más del 80% de los participantes manifestaron su disposición de continuar estudiando bajo la modalidad virtual. Los factores de autoeficacia en el uso de internet y la interacción del estudiante-instructor mostraron correlaciones positivas y significativas (p < 0.05) respecto a la satisfacción estudiantil bajo la modalidad virtual, además, los participantes de mayor edad presentaron una mayor satisfacción que los sujetos menor edad sin importar su estado de empleabilidad en paralelo a su escolaridad. Por otra parte, no se encontraron diferencias significativas (p > 0.05) entre el género de los participantes, el estado de su empleabilidad y su rango etario respecto a los puntajes obtenidos.
Mitos de Violencia Contra las Mujeres en la Pareja: La escala MIPVAW
Authors: García-Pérez Rafael , Rodríguez López Manuel , Rebollo Catalán Ángeles , Cubero Pérez Mercedes , Bascón Díaz Miguel Jesús
Published: December 2024

La violencia contra las mujeres en la pareja (IPVAW) ocurre a edades cada vez más tempranas y la juventud percibe señales iniciales de violencia contra las mujeres como "normales". Esta normalización de la violencia permite a los agresores mantener sus relaciones y su reputación social, al tiempo que reduce el apoyo social de las víctimas y aumenta su vulnerabilidad. La revisión teórica sugiere actualizar las escalas disponibles incorporando la normalización de la violencia. El propósito de este estudio es desarrollar una nueva escala (MIPVAW) para evaluar el grado de aceptación de los mitos sobre la violencia íntima de pareja. Para ello, 1.500 estudiantes universitarios españoles de primer año (edad: M = 18.9; SD = 1.38) completan la nueva escala MIPVAW y la adaptación española del Inventario de Sexismo Ambivalente. Los resultados de EFA y CFA apoyan una estructura de cuatro factores, mostrando índices de fiabilidad adecuados, lo que se logra con solo 15 ítems. Esto indica que la escala es válida y fiable para evaluar la aceptación de diferentes mitos sobre IPVAW: minimización de la violencia, culpabilización de las víctimas, exoneración del agresor y normalización de la violencia. También se demuestra una alta correlación entre las puntuaciones de la escala MIPVAW con el sexismo ambivalente. Esta escala representa una contribución novedosa en la medición de este constructo al incorporar la normalización de la violencia y mejorar su aplicabilidad reduciendo los indicadores para su medida.
REVIEW OF MODERN TECHNOLOGIES FOR "STRUCTURAL HEALTH MONITORING" (SHM) OF HISTORICAL BUILDINGS IN COMPLEX ENGINEERING AND GEOLOGICAL CONDITIONS: SENSORS, DATA ANALYSIS METHODS AND PROSPECTS FOR APPLICATION IN UKRAINE
Authors: Bugai Dmytro , Scherbyna Sergiy , Kril Tetiana , Cherevko Iryna , Shekhunova Stella
Published: December 2024

A brief overview of modern technologies of “Structural Health Monitoring” (SHM) of building structures is presented. The main attention is paid to the analysis of the world experience and features of the application of SHM to historical buildings, which are situated in difficult geothechnical conditions and are exposed to the influence of dangerous geological processes. The goals and principles of the methodology are outlined. An overview of the main types of instrumental sensors (in particular, accelerometers, acoustic emission sensors, GPS sensors, and sensors of environmental conditions) is presented. The methods of mathematical analysis and interpretation of the received data streams are discussed. The article demonstrates the significance of employing contemporary SHM technologies for architectural monuments within the National Reserve “Kyiv-Pechersk Lavra”. These structures are situated in challenging engineering and geological contexts, and are susceptible to hazardous effects from both natural (landslide processes, meteorological factors) and anthropogenic (waterlogging of foundation soils due to leaks from engineering networks, vibration loads from transport, blast waves due to military operations, etc.) sources. The pilot experience of applying the SHM methodology to the objects of the Kyiv-Pechersk Lavra National Reserve is discussed. The work on testing of sensors (accelerometers, bicycle meters, laser inclinometer) for recording vibrometric, seismic and deformation effects on the objects of the reserve is described. A method of automatic extraction of a useful signal of the ‘microcrack’ type for an accelerometer sensor is presented. The results of the test operation of a 3D laser inclinometer for studying the directions of sliding and deformation of historical buildings and structures, in particular, due to landslides and soil subsidence, etc. are presented.
ANALYSIS OF THE DEPOSITIONAL CONDITIONS OF THE MIOCENE SALIFEROUS FORMATION OF THE TRANSCARPATHIAN TROUGH
Authors: Shekhunova Stella , Siumar Natalia , Stadnichenko Svitlana , Aleksieienkova Maryna
Published: December 2024

Based on the results of the generalization and interpretation of geological and geophysical materials of the Miocene saliferous formation of the Transcarpathian Trough, a GIS-integrated database was designed and used to apply a new technique for structural models development. In particular, models of the depths and thickness of the saliferous formation within the Chop-Mukachevo and Solotvyno depressions were developed. The obtained models were analyzed to assess the degree of reliability and the verification of the boundary of the saliferous formation was done.
THE EFFECT OF ANTHROPOGENIC FACTORS ON THE HOLOCENE BOTTOM SEDIMENT FORMATION OF THE SHALLOW WATER AREAS IN THE BLACK SEA NORTHWESTERN SHELF ON DIATOMS
Authors: Olshtynska Olexandra , Tymchenko Yuliia
Published: December 2024

Modern water ecosystems of the northwestern Black Sea shelf shallow coastal areas develop under the influence of both natural and anthropogenic factors. Diatoms, which are abundant in these waters, are sensitive organisms-­indicators of the ecologicaconditions of the aquatic environment. The purpose of the article is to reveal the effect of anthropogenic factors on the Late Holocene sedimentary conditions using the analysis of the ecological structure of diatom assemblages from the NovoeuksinianHolocene bottom sediments column sections. The research was carried out on the shelf areas within the Gulf of Odesa and near the Danube Delta. It was determined that the specifics of modern sedimentation and ecological conditions of the northwestern shelf shallow water areas depend on the flat bottom relief, a significant amount of river water and suspended sediments, regulated flow of the main tributaries, increased bioproductivity and a high level of anthropogenic load. The characteristic species and typical ratios of diatom ecological groups indicating the stages of Holocene transgression in the coastal zone were determined for the studied water areas. For the open Gulf of Odesa, the appearance of the littoral assemblage with the dominance of Paralia sulcata species in the plankton is a sign of the onset of the Middle-­Late Holocene marine conditions. Ihas been established that diatom assemblages from the surface sediments of the Odesa Bank and the Chilia Delta branch estuarine areas are distinguished by the appearance of planktonic and epiphytic species-­indicators of eutrophication ananthropogenic water pollution. According to the calculations, this sediment was formed during the second half of the 20th century, when significant anthropogenic changes in the hydrological regime of the Dnipro and Danube occurred. As a result, the vertical sequences of diatom composition made it possible to trace not only the natural transformations of sedimentation conditions due to the Holocene transgression, but also the response of biotopes to anthropogenic changes. The studies have shown that the nature of sedimentation on the shallow shelf has changed since the second half of the 20th century, which was the result of intense anthropogenic impact.
BIOSTRATIGRAPHY OF NEOGENE AND QUATERNERY DEPOSITS (MIDDLE MIOCENE-HOLOCENE) OF THE NOUTHERN PART OF THE BLACK SEA ACCORDING TO OSTRACODS
Authors: Dykan Natalia
Published: December 2024

The biostratigraphic analysis of Neogene and Quaternery deposites (Middle Miocene-Holocene) of the nouthern part of the Black Sea is based on a detailed systematic study and comprehensive analysis of fossil and recent ostracods. The regularities of the stratigraphic position of fossil ostracods in the Neogene-Quaternary deposits of the northern part of the Black Sea (the inner shelf–continental slope up to 1000 m water depth from the Danube Delta to the Taman Peninsula, geological sections of the Black Sea coast, the estuary of the northwestern Black Sea coast) were analyzed. The identification of biostratigraphic subdivisions (сenozone, ecozone, acmezone, layers with ostracods) in Sarmatian, Meotic, Pontic of the Middle-Upper Miocene; Kimmerian, Kujalnikian of the Pliocene; Gurian, Chaudian, Old-Evksinian, Evksino-Uzunlarian, Karangatian, Postkarangatian, Novo-Evksinian, Holocene of the Quaternary are based. The boundary of the Pliocene–Quaternary and Pleistocene–Holocene in the northern part of the Black Sea according to ostracods is based.
Metafora konseptual aksara Jawa dalam Serat Centhini: kajian linguistik kognitif
Authors: Elika Ninik , Nurhayati Nurhayati
Published: December 2024

This research aims to describe the conceptual metaphor of the Javanese character in Serat Centhini. Serat Centhini is the most extensive literary work formed by the Javanese song on Java and was written in Javanese characters using the Old Javanese language. Volume 3, part 5 of Serat Centhini explores the conceptualization of the Japanese character as it relates to the history of the emergence of life, body parts, and mortality. This research uses qualitative descriptive paradigm methods, utilizing gathering and interview techniques. The theoretical framework is based on the Lakoff and Johnson theory. The research results show us that Javanese people conceptualize the history of life’s emergence, body parts, and mortality into Javanese characters based on visual similarities, location or position, the sound of the characters, and their meanings. This conceptualization also reflects the acculturation of Javanese culture with Islam and the relationship between humans and God.
Mantra penyambutan kelahiran anak pada ritual belian melas suku Dayak Tunjung
Authors: Putri Nina Queena Hadi , Sulistyowati Endang Dwi , Saputra Marselinus Juan , Rokhmansyah Alfian
Published: December 2024

Mantra dipercaya oleh masyarakat pendukungnya memiliki kekuatan gaib, kesaktian, dapat menyembuhkan penyakit, dan menghindari gangguan roh-roh gaib. Penelitian ini bertujuan untuk mendeskripsikan fungsi mantra belian melas suku Dayak Tunjung di Kampung Ngenyan Asa, Kabupaten Kutai Barat. Metode yang digunakan dalam penelitian ini adalah metode penelitian etnografi dengan pendekatan kualitatif yang dipaparkan secara deskriptif. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah teknik observasi, wawancara terstruktur, dan dokumentasi. Teknik analisis data yang digunakan adalah reduksi data, transkrip data, penyajian data, penarikan kesimpulan. Dari hasil penelitian mantra pada belian melas berfungsi sebagai pengendali sosial (nasihat), pengingat (peringatan toleransi, dan alat komunikasi pemeliant dengan para roh-roh agar tidak mengganggu, menyakiti dan kembali kepada anak keluarga),  sarana untuk berdoa dengan roh-roh, dan  sarana pelestarian budaya lokal.
Semiotics in the song Saat Kau Telah Mengerti by Virgoun
Authors: Widhiarto Annisa Karunia , Illona Fatiha , Suryaningrum Dewi , Hapsari Anggalia Tri , Muzaki Helmi , Zunoomy Muhammadu Sainulabdeen , Bello Idris Muhammad
Published: December 2024

This research aims to describe the connotation and denotation meanings in the song entitled Saat Kau Telah Mengerti (When You Understand) by Virgoun. In this article, the method used descriptive qualitative and analyses using Roland Barthes' semiotic theory, which discusses the concepts of denotation and connotation. According to Barthes' concept, a denotative sign consists of a signifier and a signified, but it also functions as a connotative sign. This means that the connotative sign not only has an additional meaning, but also consists of both parts of the denotative sign on which it is based. The results of this study reveal that there are ten song lyrics that contain denotative meaning and sixteen song lyrics that contain connotative meaning. The song Saat Kau Telah Mengerti has a meaning in the form of messages and hopes of parents to children. In its song, the songwriter as a parent wants to give the best for his child. However, action taken by parents for their children’s benefit can occasionally cause the child to feel upset or angry.
Pengembangan AMPURASIA: media interaktif berbasis aplikasi android pada materi teks puisi rakyat kelas VII SMP
Authors: Wijayanti Citra Putri , Sulistiyono Roni
Published: December 2024

Android-based learning media has become one of the innovations in 21st-century education. There is a need for new educational technologies aligned with the current demands and challenges of learning, especially in preparing for PISA and AKM assessments. This article describes the development and feasibility testing of the Android-based application 'AMPURASIA' as a learning medium for 7th-grade junior high school students on traditional poetry texts. The research follows the R&D approach, using the Borg & Gall model, which involves seven essential stages: (1) data collection, (2) product design planning, (3) initial product development, (4) limited-scale preliminary testing, (5) initial product revision, (6) field testing, and (7) final product revision. This study employed observation sheets and questionnaires as data collection instruments. In the limited trial, the researcher involved 10 students as subjects, while experts served as validators. The data collected were analyzed using descriptive quantitative methods. The analysis results showed that the learning media was rated 'highly feasible' with an average score of 88% on the product feasibility test. Therefore, the product can be utilized as an interactive learning medium.
Subalternity dan unhomeliness dalam cerpen The Arrangers of Marriage karya Chimamanda Ngozi Adichie
Authors: Alaydrus Syarifah Fairuz Shafira , Saraswati Asri
Published: December 2024

As a black Nigerian woman who married an immigrant, Chinaza from The Arrangers of Marriage (2009) short story had to go to the United States of America and live with her husband. Being in an unfamiliar environment made her feel isolated, especially with her marriage being an arrangement in which she had no say. This research aims to reveal Chinaza’s lack of agency in gaining her voice and how it affects her alienation in a new environment. By using a qualitative descriptive method, this research applies a postcolonial approach with the help of Gayatri Spivak’s subaltern and Homi Bhabha’s unhomeliness concept. The results show that Chinaza is a subaltern who is silenced and marginalized in both her patriarchal family and her new environment in the United States. In addition, her new life in a foreign country made her feel confined between two cultures, which couldn’t seem to accept her nor was she able to accept completely. The feeling of “unhomely” that Chinaza experienced was not solely caused by living in a foreign country, but also because of her husband urging her to abandon her culture.
Fungsi dan bentuk metafora pada Patu Mbojo
Authors: Maisaroh Siti , Santoso Anang , Roekhan Roekhan
Published: December 2024

Tujuan penelitian ini adalah untuk mendeskripsikan jenis-jenis metafora konseptual pada Patu Mbojo. Metode penelitian ini adalah deskriptif kualitatif. Teknik pengumpulan data yang digunakan yaitu teknik baca dan catat. Teknik baca dilakukan untuk menemukan data-data metafora konseptual pada patu Mbojo. Kemudian teknik catat yaitu mencatat data yang diperoleh dari hasil membaca. Data penelitian diperoleh dari buku Patu Mbojo: Struktur, Konsep Pertunjukan, Proses Penciptaan, dan Fungsi karya Ahmad Badrun. Proses analisis data terdiri dari tiga tahap: reduksi data, penyajian dan analisis data, serta penarikan simpulan. Metafora konseptual mengungkap tiga jenis utama dalam Patu Mbojo: struktural, orientasional, dan ontologis. Metafora ini memanfaatkan alam, tubuh manusia, dan pengalaman sehari-hari untuk menggambarkan konsep abstrak. Selain estetika, metafora juga menghubungkan masa lalu, kini, dan masa depan, sekaligus menjadi wadah nilai-nilai moral dan edukasi masyarakat Bima-Dompu. Dengan demikian, Patu Mbojo tidak hanya karya sastra, tetapi juga cerminan cara berpikir, nilai, dan kearifan lokal masyarakat.
The use of turn taking in the 2020 US presidential debate: A conversation analysis study
Authors: Aryanti Maya Lisa , Yuliawati Susi , Ekawati Dian , Darmayanti Nani
Published: December 2024

The 2020 US presidential debate was a democratic practice held every four years. In the debate, each debater used turn taking strategies. This research focuses on the uses of turn taking strategies and their types dominantly produced by the debaters in the debate. The strategies encompass taking, holding, and yielding the turn. Elaborating the strategy in depth is the aim of this research. Qualitative conversation analysis technique using turn-by-turn consideration was the used method. The utterances of the debaters were the data. The data source was a self-made transcription based on the video recording of the debate. Overlapping, interruption, repair, and other debater selection often occur in the debate through those strategies. Consequently, TRP frequently cannot be reached, and the usage of these strategies affects turn allocation. The results show that turn taking strategies were applied in the debate. Trump used taking the turn and yielding the turn as strategies. Meanwhile, Biden used holding the turn as his strategy. For future research, discussions on turn-taking subcategories in the scope of political debates and conversation analysis are expected to be conducted more.
Healthcare Futures: Opportunities, Challenges and Risks in a Blockchain-Driven Environment
Authors: Goldberg Robert , Pitts Peter J. , Hinkel Jennifer
Published: December 2024

The integration of blockchain technology and smart contracts presents a transformative opportunity in healthcare financing by enabling the creation and trading of futures contracts based on the value of medical innovations. Traditional financial mechanisms struggle to capture the downstream savings generated by new therapies, particularly as insurers and health systems face the challenge of managing short-term costs while realizing long-term health benefits. Blockchain’s decentralized, transparent, and tamper-proof infrastructure offers a solution by providing reliable data that tracks health outcomes, cost savings, and patient behavior in real-time.
This paper explores how a blockchain-governed healthcare marketplace can facilitate the trading of Health Impact Futures (HIF) contracts that allow stakeholders—such as self-insured health plans, insurers, biotech firms, and speculators—to hedge risks, capture savings, and invest in medical innovations. By leveraging smart contracts, which automate transactions and ensure trust through pre-defined algorithms, the platform offers a seamless and secure environment for managing complex healthcare data and financial instruments. The introduction of health cost indices, anchored in reliable blockchain-verified data, allows for accurate pricing and risk management, promoting liquidity and market efficiency.
Additionally, tokenization of health savings enables insurers to capture the economic value of improved health outcomes, even when patients switch health plans. This approach not only ensures the continuity of value but also introduces a new financial layer that reflects the real-world impact of medical innovations. By using structured notes and algorithm-driven health indices, market participants can dynamically hedge against fluctuations in healthcare costs while aligning incentives across the healthcare value chain. The paper concludes by addressing the technological, regulatory, and data integrity challenges associated with developing a blockchain-based futures market for healthcare and proposes a roadmap for overcoming these barriers to unlock the full potential of this innovation.
History of bridge architecture to the XVIIIth century
Authors: Buhaievskyi Sergiy , Haponova Lyudmila , Nazarko Olga , Buhaievskyi Volodymyr
Published: December 2024

Abstract. Problem. Bridge construction and the warehouse history development of lighting architecture and living technology. The contribution to the material from this diet was based on the close interconnection of the design and the artistic appearance of the material. The history of the bridge development construction is laid out in the context of the foreign cultural and technical level of the analyzed era. Knowledge of the architectural design basics expands the professional and secluded look of future fachists, the creative taste of art, encourages developers to create constructively and artistically valuable disputes. The goal is to conduct further research and analysis of the development of the place and the development of culture from ancient Greece and classical structures of the post-beam type, simplifying the process of building arch crypts in Starodav the new Roman power, bridges between Central Europe and Asia. Behind the era of the Revival of Italy and the end of the 16th century. Priishov Baroque style. Its characteristic features were the use of dynamic compositions and rich architectural decor. Soon the baroque will emerge in France, but will not expand widely here. Beginning from the middle of the 17th century, classicism became a panicky style in France. before the tendency to create facade compositions that are not directly related to the constructive side of disputes in England. The analysis shows that bridge projects in the 18th century. consist of engineers who were either architects or practical bridge builders. Methodology. Simultaneously carrying out an analysis of the development of the theoretical field of engineering knowledge. To achieve the goal, it is necessary to reveal the sequence of road infrastructure, look at the materials in the geometric variety of sizes of stone materials, and identify their influences in the development of structural bridge systems. Results. Based on a comprehensive look at the bridges built before the 18th century, the main stages in the development of the place were revealed. Regardless of the actual costs of human and financial resources, it is possible to demonstrate the reliability of everyday structures and ensure the reliability of the designed architectural forms today. Originality. Before carrying out structural analysis, we follow the designs and methods of building places of architectural styles that developed significantly under the influx of changes in the aesthetic views of the era. Practical value. The unity of constructive and artistic solutions has been revealed. Conducting primer analysis of the main style-creating disputes (palaces, cathedrals, villas), their formal and expansive warehouse architecture, which develops independently, poses in connection with the development of the structure. The trends of park art, of which park architecture and bridges have become a special sphere, are looming for further development.
Assessment of the Environmental Impact of Passenger Road Transport Fleet in Ukraine
Authors: Svichynskyi Stanislav , Svichynska Olha
Published: December 2024

Abstract. Problem. Today, humanity is increasingly aware of the consequences of its impact on the environment, necessitating urgent solutions to a range of ecological problems. In this context, there is growing attention to the ecological aspects of decisionmaking regarding various project implementations. This trend is also reflected in the planning of transportation systems. Designers in Western European countries, guided by the EU Directive on environmental management and the ISO 14001 environmental management system regulation, always take into account the expected energy consumption and the impact of projects on ecosystems. Currently, in Ukraine, only general information about the environmental state is available, highlighting the need for a more detailed analysis of fuel consumption and the impact of the transportation system on living conditions. This article is dedicated to studying this issue. Goal. The purpose of this article is to develop an approach for assessing the environmental impact of freight road transport in Ukraine based on relevant modern European methodologies for evaluating fuel consumption and greenhouse gas emissions. Methodology. The assessment of fuel consumption and greenhouse gas emissions from freight vehicles should be based on specific indicators per vehiclekilometer. This is due to the fact that the data on transport work volumes, presented in state statistics, are not always reliable because of the voluntary nature of reporting and the lack of a legislative framework. For a more accurate assessment, it is advisable to divide freight vehicles into two categories: light and heavy. The methodology for analyzing fuel consumption and greenhouse gas emissions is based on modern models, particularly the HDM-4 model, which is one of the most widely used for such calculations. Results. The developed approach allowed for the determination of total fuel consumption and greenhouse gas emissions from freight road transport on a national scale. Originality. For the first time, approximate current data on the environmental impact of the entire freight vehicle fleet in the transportation system of Ukraine has been obtained. Practical value. The obtained figures for fuel consumption and greenhouse gas emissions from freight transport can be used by government authorities for the ecological assessment of scenarios for the development of Ukraine’s transportation system.
Method for Defining VD-Functions for Transport Network Elements in an Urban Mobility Model
Authors: Sistuk Volodymyr
Published: December 2024

Abstract. Problem. One of the critical factors influencing the assignment of private transport demand in urban mobility models is the Volume-Delay Function (VDF) applied to transport network elements such as links, nodes, and turns. Decades of research have provided substantial insights into transportation modeling, including the identification of parameters essential for constructing VD-functions. Nevertheless, the accurate definition and calibration of VD-functions for all significant transportation network objects in urban models continue to demand innovative approaches. Goal. The objective of this study is to formulate a method for determining VD-functions for objects of the transport network within the urban mobility model developed using PTV Visum software, leveraging the analysis of historical traffic data. Methodology. The study establishes the relationships between the current speed of private transport and links congestion levels, as well as between travel time and congestion at nodes and turns when applying different VD-functions. Using Kryvyi Rih's urban mobility model, developed in PTV Visum software, the VD-functions were tested in various combinations, with a focus on selecting appropriate calibration parameters. The average vehicle flow rate in the loaded network served as the criterion for assessing the alignment of the model's results with real-world conditions. For the city's street and road network, average daily traffic speeds were analyzed using data from the TomTom Traffic Stats portal, which utilizes FCD technology. The analysis concluded that Scenario 2 is the most suitable for Kryvyi Rih's mobility model, applying the Lohse function for links and TModel Nodes for nodes and turns. Originality. A scientifically interesting aspect is the approach of utilizing average daily vehicle speed data, obtained through FCD technology, to determine and calibrate VD-functions for various types of transport network objects within the urban mobility model. Practical value. This work holds practical significance for transportation modeling engineers, as the developed VD-functions can be applied during the calibration of private transport demand in mobility models for other cities. Additionally, it is valuable for decisionmakers in the transport sector, aiding in more informed planning and management.
New Technologies of Grain Boundary Engineering of Materials for Improving the Corrosion Resistance of High Alloy Stainless Steel Pipes
Authors: Dergach Tetyana , Hlushkova Diana , Balev Andrey
Published: December 2024

Abstract. Problem. Pipes made of highly alloyed corrosion-resistant steels are widely used in corrosive-aggressive environments in priority industries. In connection with the increasing severity of their operating conditions, increased requirements for resistance to intercrystalline, pitting corrosion, corrosion cracking, and sulfide corrosion cracking under stress become the most important in accordance with the requirements of foreign and international standards. Previous studies have shown that currently operating technologies for the production of pipes do not meet the modern, comprehensive requirements for quality characteristics. To solve this problem, it is necessary to apply new progressive scientific and technological methods. Goal. The purpose of the work is to increase the corrosion resistance and operational reliability of pipes made of highly alloyed austenitic and ferritic-austenitic steels by improving their structure during deformation and temperature treatments according to the principle of grain boundary engineering of materials. Methodology. To achieve the goal, the latest scientific achievements and technologies for improving the structure and increasing the corrosion resistance of rolled products made of high-alloy steel were analyzed. When conducting experimental studies, modern methods were used and methods of metal structure research and complex corrosion tests for resistance to local types of corrosion to which corrosionresistant steels are subjected in operating conditions were developed. The results. The latest technologies for the production of pipes from austenitic chromenickel and ferritic-austenitic chrome-nickelmolybdenum steels, based on the principle of grain boundary construction of polycrystalline materials, have been developed. They ensure obtaining a structure of pipes with an increased content of special low-energy grain boundaries in the theory of coinciding site lattices (CSL) and high resistance against local types of corrosion in accordance with new industry requirements. Originality. For the first time, special low-energy grain boundaries in the ferritic component and interphase boundaries with reduced surface energy in highly alloyed ferriticaustenitic steels were found. The leading role of special boundaries in increasing resistance to local types of corrosion that originate at grain boundaries is shown. Practical value. The results of the work were implemented in the production at Centravis Production Ukraine PJSC, which contributed to the improvement of the quality and competitiveness of products
Influence of available impact energy of the testing machine on drop weight tear test characteristics of high toughness pipeline steels
Authors: Lyuchkov Anatoliy , Vakhrusheva Vira , Hruzin Natalia
Published: December 2024

Abstract. Problem. Currently, the problem he methodological issues related to drop load testing (DLT) of rolled plates and pipes made of highviscosity steel for high-pressure gas mains are considered. The imperfection of the current standards in terms of selecting the values of the stored energy of the copra, ensuring the correct testing of metal of the entire size range, is note. Goal Evaluation of the influence of stored copra energy on the results of WIP in terms of the amount of viscous component and absorbed fracture energy of full-thickness specimens of high-viscosity pipe steels widely used in the construction of high-pressure gas pipelines. Methodology. We examined sheets and base metal of pipes of strength classes X65, X70 and X80 of various thicknesses manufactured using thermomechanical rolling technology. The falling load tests were performed on Zwick copters of different capacities. Results The limits of application of the recommendations of APIRP5L3 and EN10274 standards for the choice of the value of the stored energy of the copra during the falling load test of high-viscosity pipe steels have been clarified. The recommendations are applicable only for steels with a thickness of less than 25 mm. Recommendations for selecting the optimal values of the stored energy of the copra at the HDM of high-viscosity pipe steels with a thickness of 25 mm and more are given Originality. The influence of stored copra energy on the results of WIP of high-viscosity pipe steels is estimated. Practical value. Recommendations were issued on the choice of the value of the stored energy of the ERW copra during testing, which will increase the measurement accuracy and reliability of the assessment of the resistance to destruction of gas pipelines
Structure and properties evolution of the Al – Cu – Mg alloy during the «twin-roll casting – hot deformation – heat treat-ment» technological process
Authors: Nohovitsyn Oleksii , Pryhunova Adel , Aiupova Tetyana , Nosko Olha , Volyniuk Diana
Published: December 2024

The influence of hot deformation and heat treatment on the wide solidification range 2024 alloy twin-rolled cast sheet billets structure and properties evolution at all stages of the technological process was studied. The maximum strength at a reduction ε = 50 % (ζB ≈ 450 MPa), and an increase in ductility with the degree of deformation (from 0–2 % in the cast state to 20–22 % after rolling and heat treatment) were established. The resulting mechanical properties of the 2024 alloy strip exceed existing analogs and standard requirements
Prospects of application of composite reinforcement in the construction industry
Authors: Piliuhin Yevhenii , Rott Nataliia
Published: December 2024

Problem. In the context of the ongoing conflict in the country, the need for metals in military applications highlights the importance of exploring alternative materials for the construction sector. This paper addresses the problem of corrosion in traditional metal reinforcement, which significantly affects the durability and safety of structures. Goal.The goal of this study is to evaluate the prospects of using composite reinforcement in construction, focusing on its mechanical properties, corrosion resistance, and overall performance compared to conventional metal reinforcement. Methodology. The methodology employed includes a comparative analysis of the physical and mechanical properties of metal and composite reinforcement, as well as a review of relevant literature on corrosion mechanisms and protection methods for building materials. Results indicate that composite reinforcement not only offers superior corrosion resistance but also significantly reduces weight, enhancing the overall efficiency of construction projects. Originality.The originality of this study lies in its comprehensive examination of the benefits and challenges of implementing composite materials in the construction industry, especially in regions facing resource constraints due to war. Additionally, the findings underscore the potential of composite reinforcement to improve infrastructure resilience while decreasing reliance on traditional metal resources. Practical value. The practical value of this research is evident in its implications for building practices, providing guidelines for the integration of composite reinforcement into new construction projects. By highlighting the advantages of composite materials, this study contributes to the ongoing discourse on sustainable construction practices and resource-efficient engineering solutions, ultimately supporting the development of more resilient infrastructure in challenging environments.
Solving the problem of technological object identification
Authors: Binkovska Anzhela , Kononykhin Oleksandr , Aleksandrovska Yuliia
Published: December 2024

Abstract. Problem. The identification task is formulated as follows: based on the results of observations of the input and output variables of a system, a model, i.e. a formalized representation of this system, should be built that is optimal in some sense. This shows the connection between the identification task and the above general scheme of establishing regularities based on the results of observations. The identification task is based on modern control theory. To solve it, modern computers are used. The latter, with their high speed and virtually unlimited memory capacity, create the prerequisites for receiving, transmitting and processing large arrays of observations that are necessary for building adequate models of real objects. Goal. Studying the possibilities of solving the problem of identifying technological objects using MATLAB+Simulink. Job tasks: to consider the tasks of identifying technological objects of management; to choose an identification method; identify the electric motor model. Methodology. The research problems should be solved by methods of analysis and synthesis of automatic control systems by the method of least squares. Results. In the work, experimental data on the dependence of the engine idling speed on the excitation current were obtained and solved the identification problem using the MATLAB+SIMULINK package. Originality. Based on the analysis of existing solutions, it was found that the works did not consider the calculation of absolute and relative errors of the results of identifying the object and the model developed using the least squares method. Thus, there is a need to develop a system for identifying a model of a technological object made by the least squares method. To solve the identification problem, an electric motor is chosen as the object of study. Practical value. The paper examines the methods used to identify complex objects. The comparative analysis showed that the most acceptable method is the least squares method, due to simple mathematical calculations in comparison with the other methods. To illustrate the application of this method, two tasks were solved: identification of the model of an electric motor; identification of the model of an alarm system. The studies have shown that model identification can be performed using the MATLAB+Simulink package. The research results obtained on the model differ from the experimental data by no more than 4 %
Control of the size and distribution of residual macronapples by rolling rollers
Authors: Subbotin Oleksandr , Belozerov Valerii , Subbotina Valeriia , Volkov Oleg , Knyazev Sergiy , Ryaboshtan Valentyn
Published: December 2024

Abstract. Microarc oxidation (MAO) is used to improve the wear and corrosion resistance of agricultural, road construction and mining machinery parts. Applying layers of aluminum to a steel product and then converting part of it into corundum ceramics will help to create maximum hardness, wear resistance and high adhesion strength. Problem. Abrasive and corrosion-abrasive wear causes the greatest damage to agricultural, road construction and mining machines. Natural abrasive, consisting mainly of SiO2 particles with a hardness of HV = 10 GPa, can only be protected by using materials with a hardness higher than the hardness of the abrasive. The solution to this problem is the application of wearresistant layers. Increasing wear resistance can be achieved by producing corundum ceramics by the micro-arc oxidation (MAO) method. Goal. The goal is to create wear-resistant corundum coatings on 40KhS steel by microarc oxidation with gas-plasma spraying of an aluminum layer. Methodology. The X-ray diffraction analysis of the coatings was performed in this work. The X-ray analysis was performed at room temperature using a DRON-4 diffractometer in monochromatic Kα-Cu radiation. When deciphering the obtained diffractograms, the ASTM. Originality. The study showed that it is possible to form a high-hardness (HV ≈ 17 GPa) oxide coating on an aluminum layer deposited by gas plasma spraying on 40KhS steel. Practical value. The resulting structure and high hardness of MАO coatings are a prerequisite for ensuring their high wear resistance to abrasive wear and corrosive environments experienced by parts of agricultural, earthmoving and road machines.
Navigating Precarious Citizenship in Schools: Newcomer Youth of Color at the Intersection of Race and Ability
Authors: Handy Tamara
Published: December 2024

Refugee and asylum-seeking youth of color from African and Middle Eastern countries contend with racist-ableist structures in host-nation schools, primarily through newcomer supports offered to them. Considering their unique migratory experiences, this comprehensive systematic literature review explored how youth of color from Africa and the Middle East are supported in host-nation schools already entrenched in systemic racism and ableism. This review advanced precarious citizenship as a framework to explain student experiences. The findings showed how segregation and exclusion, ableist determinations of civic fitness, and assimilationist imperatives introduced precarity and foreclosed educational opportunities. Implications for research and practice are discussed, emphasizing the importance of disrupting racism and ableism in supporting newcomer youth of color.
Feasibility of application of step-by-step air supply in coke ovens of different heights
Authors: Abdullin S.Yu. , Stelmachenko S.Yu. , Koskova H.E.
Published: December 2024

The research was carried out with the aim of identifying the impact of a step-by-step approach air into the vertical of the coke oven by the amount of nitrogen oxides formed. Numerical modeling using ANSYS-FLUENT programs. 3D models of verticals were built, in which the combustion processes of heating gases were simulated. It is known that the amount of NOx formation is affected by the temperature in the flame. Searching for ways to reduce the maximum flame temperature in the vertical without reducing the amount of heat transferred to the coal charge is a promising direction. Modeling of various options for the design of furnaces of different heights showed that recirculation reduces the amount of NOx formation by no less than half, and the organization of the second stage of air supply - by an additional 10-30 %, depending on the location of the second stage in height and the amount of air supplied to it. Adding each new air supply stage beyond two reduces the efficiency from each new addition, so the arrangement of two air supply points has been considered as optimal. The optimal height of the location of the second stage of secondary air supply has been also found. For furnaces up to 7 meters high, the arrangement of a staged air supply is justified if, in addition to recirculation, it ensures a more uniform heating of the coal load in height, but the concentration of NOx is slightly reduced. It has been found that the addition of the second stage of air in the ovens of small height, less than 7 m, can cause overheating of the top of the furnaces, which will lead to deterioration of the quality of coke in these areas. Therefore, step-by-step air supply to the verticals of such furnaces should be implemented with caution, taking into account other factors, in particular, the parameters of the charge. Maximum flame temperatures when heated with mixed gas are lower than those for coke gas, which opens up greater opportunities for reducing NOx when using this gas. Keywords coke ovens, batteries, step-by-step air supply, heating gas combustion conditions, recirculation of combustion products, mechanism of formation, thermal nitrogen oxides, coke ovens heating system, reduction of nitrogen oxide formation volumes, refractory brickwork. Corresponding author H.E. Koskova, e-mail: galina.koskova@gmail.com