bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Assessment Results of Physical Education Learning Quality Mapping in Nahdlatul Ulama Pakis Junior High School
Authors: Akhmad Muhson  , Sudari  , Hendi Imam Fadoli  , Nunuk Tujung Sari  
Published: December 2024

Learning Quality Mapping Cognitive Assessment is a cognitive assessment intended for the Malang Regency Education Office in mapping the quality of learning at the Junior High School level throughout Malang Regency, both public and private schools. The purpose of this research is that both students, teachers, schools and education agencies can find out the average achievement of student competencies in each subject. This research is included in ex-post facto research, this research uses a quantitative approach in the form of numbers. Ex-post facto research is a method that is widely used and useful for researchers because it provides a lot of valuable information for decision making in the field of education. The population and sample in this study were grade 9 students of Nahdlatul Ulama Pakis Junior High School totaling 178 and representative sampling was proportional random sampling. Data collection in this study used primary data obtained from students in the form of questionnaires and secondary data obtained from documentation of learning outcomes obtained from teachers and research documentation. The data analysis technique used by this researcher is descriptive quantitative using questionnaires and documentation. The research results in of each class are in class 9A getting results with good predicates, class 9B getting results with good predicates, class 9C getting results with good predicates, class 9D getting results with good predicates, class 9E getting results with good predicates and class 9F getting results with good predicates. Thus it can be concluded that the learning process and learning outcomes of physical education at Nahdlatul Ulama Pakis Junior High School are going well as evidenced by the results of the assessment carried out simultaneously in Malang Regency in 2024.
The Phenomenon of Early Marriage in the Seginim Sub-District South Bengkulu District
Authors: Yuanta Tia , Nopianti Heni , Widiyarti Diyas 
Published: December 2024

Abstract. Early marriage is a marriage event conducted by a man and a woman under the minimum age of marriage. As happened in Seginim Subdistrict, South Bengkulu Regency, the number of early marriages that occur is relatively high. This research uses a qualitative approach, described descriptively. The techniques used to collect data are non-participant observation, semi-structured interviews, and documentation studies. The data analysis technique used in this research is the Miles and Huberman data analysis model, which includes data collection, data reduction, data presentation, and conclusion drawing. The theory used to analyze the results of this study is Max Weber's social action theory. This study found several findings, namely that early marriage was caused by marriage by accident and not wanting to go to school, lack of knowledge about marriage from both adolescents and parents of adolescents who entered into early marriage, especially regarding the provisions of the minimum age of marriage and the attitude of parents of adolescents who entered into early marriage who were not too strict with their children, especially for their children who only married because they were tired of school. So, it can be concluded that the low knowledge of adolescents regarding the essence and provisions of the minimum age of marriage. Keywords: Early marriage, Phenomena, Seginim, South Bengkulu, Teenagers. Abstrak. Perkawinan dini adalah peristiwa perkawinan yang dilakukan oleh seorang pria dan wanita yang masih di bawah usia perkawinan minimal. Seperti yang terjadi di Kecamatan Seginim, Kabupaten Bengkulu Selatan, jumlah perkawinan dini yang terjadi relatif tinggi. Penelitian ini menggunakan pendekatan kualitatif yang dijelaskan secara deskriptif. Teknik yang digunakan untuk mengumpulkan data adalah observasi non-partisipan, wawancara semi-struktural, dan studi dokumentasi. Teknik analisis data yang digunakan dalam penelitian ini adalah model analisis data Miles dan Huberman, yang meliputi pengumpulan data, reduksi data, penyajian data, dan penarikan kesimpulan. Teori yang digunakan untuk menganalisis hasil penelitian ini adalah teori tindakan sosial Max Weber. Penelitian ini menemukan beberapa temuan, yaitu bahwa perkawinan dini disebabkan oleh perkawinan yang terjadi secara tidak sengaja dan tidak ingin melanjutkan sekolah, kurangnya pengetahuan tentang perkawinan baik dari remaja maupun orang tua remaja yang melakukan perkawinan dini, khususnya terkait ketentuan usia perkawinan minimal dan sikap orang tua remaja yang melakukan perkawinan dini yang tidak terlalu tegas terhadap anak-anak mereka, terutama untuk anak-anak mereka yang hanya menikah karena merasa lelah dengan sekolah. Oleh karena itu, dapat disimpulkan bahwa rendahnya pengetahuan remaja mengenai esensi dan ketentuan usia perkawinan minimal. Kata Kunci: Perkawinan dini, Fenomena, Seginim, Bengkulu Selatan, Remaja.
Investigating the effect of a 12-week game skill-based activity in physical education to enhance movement competence of students: a randomized trial
Authors: Longakit Jet , Lobo Joseph , Tagare Ruben Jr. , Aliser Johnlenon , Colobio-Englatiera Britanny , Panganiban Teejay , Aquino John Michael , Rodriguez Deljun , Gazali Novri , Kurnaz Mert 
Published: December 2024

Background and Study Aim. Improving students’ physical competence and engagement relies on effective physical education programs. The use of innovative teaching methods is becoming increasingly prevalent in education. This study aims to investigate the effect of game skill-based activity in physical education to enhance movement competence of students.
Material and Methods. The study included 60 students, aged 18 to 21, from different universities. They were divided into experimental and control groups using a quasi-experimental design. The Movement Competency Screen (MCS) was used for assessment. The movement competency test evaluated students' movement skills before and after the intervention. The test included bodyweight squats, lunges and twists, push-ups, bend-and-pull exercises, and single-leg squats.
Results. There were no significant differences in motor competence screening scores between the two groups (p > .05). However, the experimental group showed significant improvements across all movement competency screen assessments. This finding highlights the effectiveness of game-based learning in enhancing skill acquisition, coordination, and overall physical skills. In contrast, the control group demonstrated only a moderate increase in movement skills. The results suggest that the game-based collaborative learning method positively impacted motor competence. It promoted the regulated, harmonious, and holistic development of students' movement skills.
Conclusions. The study postulates that a 12-week game skill-based activity in physical education promotes physical competency. It also offers social and psychological benefits. This approach presents a promising pedagogical method to enrich physical education experiences. It encourages cooperation, teamwork, and active participation among students, fostering a more supportive and dynamic learning environment.
PENERAPAN MODEL PEMBELAJARAN BERPIKIR INDUKTIF PADA PEMBELAJARAN MENULIS LATAR BELAKANG MASALAH KARYA ILMIAH
Authors: Miftahul Malik  , Anisa Nur Fazrin  
Published: December 2024

ABSTRAK
Model pembelajaran berpikir induktif adalah model pembelajaran berbasis memproses informasi, dengan model ini siswa dituntut aktif berlajar secara mandiri, menemukan konsep dan gagasan, serta mengembangkan kemampuan berpikir kritis. Penelitian ini bertujuan untuk melihat bagaimana penerapan model pembelajaran berpikir induktif dalam pembelajaran menulis latar belakang masalah karya ilmiah di kelas XI SMA Mekar Arum Bandung Tahun Ajaran 2021/2022 dari mulai perencanaan, pelaksanaan, hingga hasil pembelajaran. Penelitian ini merupakan penelitian kuantitatif, metode yang digunakan dalam penelitian ini adalah pre-expreimental design dengan bentuk one group pretest and posttest. Berdasarkan hasil uji statistik disimpulkan bahwa model berpikir induktif memiliki pengaruh positif terhadap hasil belajar peserta didik. Meski begitu, model tersebut dikategorikan tidak efektif diterapkan dalam pembelajaran menulis latar belakang masalah karya ilmiah karena berdasarkan hasil perhitungan efektifitas N-Gain, diperoleh nilai rata-rata persen gain sebesar 28.44%. Sedangkan nilai maksimal untuk kategori efektif sebesar lebih dari 76%.
Kata Kunci: model pembelajaran berpikir induktif dan hasil belajar

ABSTRACT
Inductive thinking learning model is a learning model based on processing information, with this model students are required to actively learn independently, find concepts and ideas, and develop critical thinking skills. This study aims to see how the application of the inductive thinking learning model in learning to write the background of scientific work problems in class XI SMA Mekar Arum Bandung in the 2021/2022 academic year from planning, implementation, to learning outcomes. This research is a quantitative research, the method used in this research is pre-experimental design in the form of one group pretest and posttest. Based on the results of statistical tests, it is concluded that the inductive thinking model has a positive influence on student learning outcomes. Even so, the model is not effectively applied in learning the background of scientific work problems because based on the results of the N-Gain calculation, the average profit percentage is 28.44%. While the maximum value for the effective category is more than 76%.
Keywords: inductive teaching model and learning outcomes
Determining the stability of roll-back stretches in steep layers when unloading a coal rock massif
Authors: Chepiga Daria , Podkopaiev Serhii , Shashenko Oleksandr , Skobenko Oleksandr , Demchenko Oleksandr , Podkopayev Yevgen , Fedorchuk-Moroz Valentyna , Matsuk Zakhar , Shymchuk Oleksandr 
Published: December 2024

The object of this study is the condition of side rocks in a coal rock massif with preparatory workings. The task solved was to ensure the stability of preparatory workings to improve the safety of miners' activities.
The bearing capacity of protective structures in the preparatory mining workings along the length of the excavation section in a coal mine was comparatively assessed.
The operational condition of the roll-back stretch, when using a protective technique that involves coal pillars, is provided for at their relative deformation e<0.25 and relative volume change dV<0.1. At a distance of l>50 m behind the cleaning pit, at e³0.6–0.8, there is a decrease in the load-bearing capacity of coal pillars and the destruction of the roof. The loss of cross-sectional area of the roll-back stretch is 50 %. Under such conditions, the level of a roof collapse threat is approaching a critical state. When using rolling bundles made of wooden sleepers at e>0.21 and dV>0.16, conditions are created around the preparatory workings at which the integrity of the roof is ensured through the gradual sealing of protective structures. At a distance l>60 m, the increase in lateral rock displacements reaches the minimum values DU=10 mm, and the loss of the cross-sectional area of the roll-back stretch is 30 %.
The kind of functional dependence between the length l (m) of the roll-back stretch with different protection techniques and the relative change in the volume dV of protective structures was experimentally determined. Such a dependence makes it possible to assess the bearing capacity of protective structures along the length of the excavation area in the zone of active influence of mountain pressure behind the cleaning pit.
The operational condition of roll-back stretches when using coal pillars is ensured within the limits of their deformation resource, which limits the use of this protection technique. To ensure the stability of preparatory workings, it is advisable to use rolled bundles made of wooden sleepers. After their compaction, the movement of side rocks is limited in the worked-out space of the excavation site
Design of an intelligent module for detecting signs of information security threats and the emergence of unreliable data
Authors: Cherepanska Irina , Sazonov Artem , Kyrychuk Yuriy , Melnychuk Petro , Melnychuk Dmytro , Nazarenko Nataliia , Pryadko Volodymyr , Bakhman Serhii , Khraban Davyd 
Published: December 2024

At the stage of production preparation, there is an urgent need for an automated system that would timely detect signs of threats to information security and the emergence of unreliable data. To solve this problem, an intelligent module capable of detecting such threats and unreliable and/or anomalous data has been designed. The proposed intelligent module is the state-of-art, original, and effective toolkit. It can be recommended for practical use as part of the well-known information and computer system for automated modeling of the system of automatic orientation of production objects at the stage of technological preparation of machine and instrument-building production. Its application makes it possible to increase information security and reliability of important production data at the stage of technological preparation of production, in particular, when modeling systems for automatic orientation of production objects. In addition, the use of the proposed intelligent module makes it possible to obtain a number of important social and economic effects. Some of these effects are manifested in the prevention or reduction of material, intellectual and time costs for saving and restoring information, etc.
Automated analysis of important production data regarding their reliability and abnormality is carried out by machine learning methods using a specially designed advanced variational autoencoder based on classification algorithms and using wavelet transformation.
The designed intelligent module for detecting signs of a threat to information security and the emergence of unreliable and/or anomalous data works in real time with a high accuracy of 97.53 %. It meets the requirements of modern production
Determining the influence of technological parameters of the laser processing of plastic cards edges on improving their wear resistance
Authors: Kyrychok Tetiana , Nazarenko Olena , Korotenko Olena , Klymenko Tetiana , Talimonova Nadiia 
Published: December 2024

The object of this study is plastic cards for various purposes, which are a multilayer structure. The main factors affecting the wear of cards are environmental influences, storage and use conditions, and equipment for reading our personalized information. During the operation of plastic cards, the most common defects are peeling of the top protective layer and violation of the integrity of the card structure. An increase in the frequency of such operational defects may be caused at the production stage by the peculiarities of a die-cutting process.
The subject of the study is to determine the optimal technological parameters for laser processing of plastic cards in order to improve their quality characteristics, in particular, wear resistance. The process of card wear was simulated by exposure to chemical and mechanical factors. The study was conducted using a standard procedure. The new methodology includes a combination of classical tests: a combination of chemical and dynamic effects and the introduction of a washing test.
To solve the existing problem, it was proposed to improve the technological process by introducing laser edge processing of plastic cards after die-cutting. A set of experimental studies on resistance to transverse, longitudinal bending and twisting revealed that the wear resistance of cards after laser edge treatment increased by 12 % compared to untreated cards. It was established that for cards made of polyvinylidene chloride, processing with a CO2 laser with a power of 25.5 W and a diameter of the laser beam of 1.5 mm is the most rational. It has been confirmed that this laser processing technique makes it possible to strengthen the chemical bonds between the layers of the body of a plastic card
Devising a method for assessing the efficiency in managing logistics operations of motor transport enterprises
Authors: Vorkut Tatiana , Volynets Lyudmila 
Published: December 2024

The object of this study is the logistics operations of a motor transport company. The task addressed is to improve the effectiveness of assessing the state of efficiency in managing logistics activities of motor vehicle enterprises, regardless of the level of hierarchy of the motor vehicle enterprise. Underlying the research is the game chaos algorithm (GCA) applied for assessing the state of efficiency in managing the logistics operations of motor transport enterprises. Evolving artificial neural networks are used to train GCA.
A comprehensive model for assessing the effectiveness of the operation of logistics activities of motor transport enterprises was built.
The model is proposed to be used in the operational management of logistics activities of motor transport enterprises. In addition, the model built allows for the following:
− assessing possible risks of disrupting the task of providing goods and services in organizations and organizational networks;
− determining the influence of performance evaluation indicators of the logistic support system in organizations and organizational networks on each other;
– establishing the influence of a group of indicators for evaluating the effectiveness of logistics support in organizations and organizational networks on a separate indicator.
The study also proposes a method for evaluating the effectiveness of managing logistics activities of motor transport enterprises. The originality of the method is that it makes it possible to avoid hitting the global and local optimum due to additional improved procedures based on the use of game chaos theory.
The simulation results showed an increase in the effectiveness of assessing the operational efficiency of the management of logistics activities of motor transport enterprises at the level of 14–16 % due to the use of additional improved procedures
Development of multifunctional polymer composites with high red mud content
Authors: Melnyk Liubov , Sviderskyy Valentin 
Published: December 2024

Red mud (RM) is one of the large-scale by-products of alumina production, posing significant environmental challenges due to its high alkalinity, toxicity, and substantial accumulation volumes. The object of this study is polymer composite based on styrene-butadiene aqueous dispersion with RM and chamotte (Pa2) as fillers at high concentrations (up to 90 wt. %). The primary problem addressed in this research is finding effective ways to utilize RM as secondary raw material to enhance its recycling efficiency and create multifunctional materials with adjustable properties.
The study established that RM has an irregular plate-like structure with a high active surface area, which facilitates the formation of an open porous composite structure, while Pa2 forms a dense matrix due to its aluminosilicate content. Infrared spectral analysis confirmed the presence of functional groups (OH, Si–O, Al–O) that ensure the interaction of fillers with the polymer matrix. Thermogravimetric analysis demonstrated that RM and Pa2 exhibit similar behavior under heating. Mechanical tests revealed that RM-based composites exhibit high plasticity and energy absorption capacity, whereas Pa2-based composites are characterized by greater stiffness and strength (elastic modulus up to 129.8 MPa).
The results indicate that the choice of filler type and concentration effectively regulates composite properties. The proposed approach enables the recycling of industrial waste and the development of multifunctional materials suitable for use in construction, protective coatings, and the production of structural elements capable of withstanding significant loads
Optimization of image compression using artificial neural networks
Authors: Lytvyn Oleksandr , Kolos Nadiya 
Published: December 2024

The object of research is artificial neural networks of adaptive resonance theory (ART). ART neural networks are classified by matching input data to one of the existing classes, provided that the data is sufficiently similar to the Class prototypes. Continuous and discrete adaptive resonance theory networks ART-1 and ART-2 work effectively in recognition systems, especially in conditions of high uncertainty, when it is necessary to identify a large number of different images.
The main problem that was solved in this study was to optimize the process of image compression using artificial neural networks, because image compression is widely used in many scientific and technical fields and becomes especially relevant when transmitting over narrow-band communication channels. A way to overcome these difficulties may be to select basic data for reconstruction from an open data set (Modified National Institute of Standards and Technology) – Fashion-MNIST. There are still unresolved issues related to the fact that lossy compression algorithms with increasing compression ratio usually generate artifacts that are clearly visible to the human eye.
A compression algorithm based on neural networks is described, which establishes a correspondence between the input and output spaces consisting of elements of the codebook and neurons. The proposed method uses a different approach (First Order), rather than a simple difference coding scheme (zero order), where the new code is calculated by subtracting the previous encoded block. The peak signal-to-noise ratio of PSNR and the root-mean-square error (MSE) of these algorithms is 24.7 DB with a compression ratio of 25.22.
The main area of practical use of the results obtained is improved image compression for processing large – volume video and photo materials without significant loss of quality
Power and emission estimation of plastic waste pyrolysis-derived fuel blends in internal combustion engines
Authors: Susilo Sugeng Hadi , Mashudi Imam , Santoso Santoso , Hardjito Agus , Pebrianti Dwi 
Published: December 2024

Energy, especially from fossil fuels, is essential for everyday life, while plastic waste is an increasing environmental threat. Plastic waste disposal methods such as landfilling and burning cause pollution. Therefore, a process is needed that converts plastic waste into fuel. The object of the study is the engine performance. The problem to be solved is the relationship between the use of a mixture of fossil fuels and pyrolysis fuel on the performance of internal combustion engines.
This research uses a systematic data collection process to obtain accurate and reliable results. The necessary equipment, including a dynamometer and gas analyzer, was prepared, and the engine was warmed up to a stable operating temperature of 80 °C. The motorbike is then positioned on the dynamometer with the rear tires aligned and the front tires secured to prevent movement. Data collection was carried out at engine speeds of 2000, 3000, 4000, 5000, and 6000 rpm, using three fuel mixtures: 10 % plastic pyrolysis fuel with 90 % RON 90, 20 % plastic pyrolysis fuel with 80 % 90 RON, and 30 % plastic pyrolysis fuel with 70 % RON 90. Each test was repeated three times, with the output power measured using a dynamometer and exhaust emissions (CO and HC levels) recorded using a gas analyzer. The test results show that the optimal fuel mixture to produce maximum engine power is a PE-RON 90 mixture with a ratio of 20:80, providing the best performance at medium to high engine speeds (3000–6000 rpm) with low CO emissions. The highest power output (1.05) occurs at 4000 rpm, while the PE-RON 90 30:70 alloy produces the best power performance at 6000 rpm (0.78 % CO). Additionally, the pyrolysis fuel blend significantly reduces CO and HC emissions, with the PE-RON 90 30:70 blend showing the lowest CO (0.78 % at 6000 rpm) and consistently reducing HC emissions across the rpm range