bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh media belajar Youtube dan lingkungan sosial terhadap motivasi belajar siswa generasi Z
Authors: Anisa Sabila Nur , Indrawati Cicilia Dyah Sulistyaningrum , Subarno Anton
Published: June 2024

Abstrak: Penelitian ini bertujuan untuk mengetahui (1) pengaruh media pembelajaran YouTube terhadap motivasi belajar siswa generasi z, (2) pengaruh lingkungan sosial terhadap motivasi belajar siswa generasi z, (3) pengaruh media pembelajaran YouTube dan sosial lingkungan secara simultan terhadap motivasi belajar siswa generasi z. Penelitian dilakukan di SMK Negeri 3 Surakarta. Penelitian ini menggunakan metode kuantitatif. Sampelnya adalah 304 siswa yang menggunakan YouTube sebagai media pembelajarannya. Pengumpulan data dilakukan dengan menggunakan kuesioner skala likert dan dianalisis dengan regresi linier berganda. Hasil penelitian menunjukkan bahwa (1) terdapat pengaruh positif dan signifikan media pembelajaran YouTube terhadap motivasi belajar siswa generasi z (thitung 7,349 > ttabel 1,650), (2) terdapat pengaruh positif dan signifikan lingkungan sosial terhadap motivasi belajar siswa generasi z (thitung 7,411 > ttabel 1,650), (3) terdapat pengaruh positif dan signifikan media pembelajaran YouTube dan lingkungan sosial secara simultan terhadap motivasi belajar siswa generasi z (Fhitung 94,798 > Ftabel 3,026).

Kata kunci: berkomunitas; dorongan menuntut ilmu; kuantitatif; media sosial

Abstract: This study aims to find out (1) the influence of YouTube learning media on students learning motivation of generation z, (2) the influence of social environment on students learning motivation of generation z, (3) the influence of YouTube learning media and social environment simultaneously on students learning motivation of generation z. The study was conducted at SMK Negeri 3 Surakarta. This study used a quantitative method. The sample involved 304 students who used YouTube as their learning media. The data was collected with Likert scale questionnaires and analyzed with multiple linear regression. The results showed that (1) there was a positive and significant influence of YouTube learning media on students learning motivation of generation z (tcount 7,349 > ttable 1,650), (2) there was a positive and significant influence of social environment on students learning motivation of generation z (tcount 7,411 > ttable 1,650), (3) there was a positive and significant influence of YouTube learning media and social environment simultaneously on students learning motivation of generation z (Fcount 94,798 > Ftable 3,026).

Keywords: learning motivation, quantitative, social environment, media social
Pengaruh kesadaran diri dan lingkungan teman sebaya terhadap kedisiplinan mahasiswa PAP FKIP UNS
Authors: Yuliana Risti , Sawiji Hery , Ninghardjanti Patni
Published: June 2024

Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh kesadaran diri dan lingkungan teman sebaya secara parsial dan simultan terhadap tingkat kedisiplinan mahasiswa. Penelitian kuantitatif ini menggunakan metode deskriptif korelasional. Pengambilan sampel menggunakan teknik proporsional stratified random sampling dan menghasilkan 60 siswa sebagai sampel. Pengumpulan data menggunakan kuesioner. Analisis data menggunakan regresi linier berganda dan menggunakan IBM SPSS ver. 25.0. hasil penelitian menunjukkan bahwa: 1) X1 berpengaruh secara parsial terhadap Y (thitung 2,122 > ttabel 2,002) dengan nilai signifikansi sebesar 0,038; 2) X2 berpengaruh secara parsial terhadap Y (thitung 2,245 > ttabel 2,002) dengan nilai signifikansi sebesar 0,029; 3) X1 dan X2 secara simultan mempengaruhi Y (Fhitung 7,487 > Ftabel 3,159) dengan nilai signifikansi sebesar 0,001. Hasil penelitian menunjukkan signifikansi ganda X1 dan X2 terhadap Y dipengaruhi sebesar 20,8% dan sisanya sebesar 79,2% dipengaruhi oleh variabel lain yang tidak dieksplorasi dalam penelitian ini.

Kata kunci: ketertiban akademik mahasiswa; lingkungan pergaulan; pemahaman diri

Abstract: This research aimed to investigate the partial and simultaneous effects of self-awareness and peer environment on the disciplinary level of college students. This quantitative study used the correlational descriptive method. The sampling used a proportionate stratified random sampling technique and resulted in 60 students as the sample. The data collection employed a questionnaire. The data analysis used multiple linear regression and utilized IBM SPSS ver. 25.0. the result of the study revealed that: 1) X1 partially affected Y (tcount 2,122 > ttable 2,002) with a significance value of 0,038; 2) X2 partially affected Y (tcount 2,245 > ttable 2,002) with a significance value of 0,029; 3) X1 and X2 simultaneously affected Y (Fcount 7,487 > Ftable 3,159) with a significance value of 0,001. The result of this study showed the multiple significance of X1 and X2 towards Y was affected by 20,8% value and the rest of 79,2% was affected by the other variables that were not explored in this study.

Keywords: college students’ discipline; peer environment; self-awareness
Pembuatan aplikasi pengelolaan data penjualan dan asuransi berbasis web di PT Pos Indonesia Kantor Cimahi
Authors: Rusmayanti Dewi Sri , Pramono Tangguh Dwi
Published: June 2024

Abstrak: Tujuan dari proyek ini adalah (1) Mengetahui kondisi awal pengelolaan data penjualan kredit dan asuransi, (2) Merancang aplikasi, (3) Membuat aplikasi, dan (4) Mengimplementasikan penerapan pengelolaan data penjualan kredit dan asuransi pada Kantor PT Pos Indonesia Cimahi. Proyek ini menggunakan metode studi kasus. Permasalahan yang terdapat pada bagian penjualan Kantor Pos Cimahi perlu dikaji lebih lanjut. Pengumpulan data dilakukan dengan observasi dan wawancara kepada manajer bagian penjualan Kantor Pos Cimahi sebagai data primer. Sedangkan data sekunder diperoleh dari dokumentasi keadaan di lapangan. Proses perancangan dan pembuatan aplikasi menggunakan software PHP dan XAMPP serta database yang dirancang dengan MySQL pada phpMyAdmin. Hasil dari proyek ini adalah pengelolaan data aplikasi berbasis web, dengan hasil pengujian menunjukkan tidak ditemukan kesalahan pada aplikasi dan dapat digunakan sebagai alternatif alat dalam mengelola data penjualan kredit dan asuransi sehingga lebih cepat dan mudah diakses. Informasi yang terdapat pada aplikasi ini juga mudah dipahami karena ditampilkan dengan jelas dan tepat.

Kata kunci: kompensasi; pemrosesan informasi; perangkat lunak

Abstract: The objectives of this project are (1) Knowing the initial conditions of managing credit sales and insurance data, (2) Designing an application, (3) Making an application, and (4) Implementing the application of management credit sales and insurance data at PT Pos Indonesia Cimahi Office. The project uses the case study method. The problems contained in the sales department of the Cimahi Post Office need to be studied further. Data collection was carried out by observation and interviews with the sales department manager of the Cimahi Post Office as primary data. Meanwhile, secondary data is obtained from the documentation of the situation in the field. The process of designing and creating applications uses the PHP and XAMPP software and a database designed with MySQL on phpMyAdmin. The result of this project is web-based application data management, with test results that show no errors were found in the application and can be used as an alternative tool in managing credit sales and insurance data so that it is faster and easier to access. The information contained in this application is also easy to understand because it is displayed clearly and precisely.

Keywords: compensation; information processing; software
Implementasi sistem pembayaran pajak daerah melalui Quick Response Indonesian Standard (QRIS) di BPKPD Kabupaten Kebumen
Authors: Wijayanti Sinta Nur , Ninghardjanti Patni , Susantiningrum Susantiningrum
Published: June 2024

Abstrak: Tujuan penelitian ini adalah untuk mengetahui penerapan sistem pembayaran pajak daerah melalui QRIS, manfaat, kendala, dan solusi permasalahan dalam penerapan QRIS. Penelitian ini menggunakan metode deskriptif kualitatif dengan pendekatan studi kasus. Data penelitian ini diperoleh dari informan, lokasi, dan dokumen, sedangkan teknik pengambilan sampel menggunakan purposive sampling. Teknik pengumpulan data dalam penelitian ini menggunakan wawancara, dokumen, dan observasi. Hasil penelitian menunjukkan bahwa penerapan QRIS dapat mempermudah transaksi pembayaran Wajib Pajak sehingga lebih efisien, mudah, aman dalam satu genggaman tanpa perlu antri di Bank Jateng dan bebas biaya admin. Kendala penerapan QRIS adalah kebiasaan dilayani oleh perangkat desa, kurangnya sosialisasi dari kepala desa kepada wajib pajak, dan server yang masih belum stabil. Masalah kebiasaan dilayani oleh perangkat desa dan kurangnya sosialisasi dari kepala desa kepada wajib pajak belum ada solusinya, sedangkan solusinya dari server yang tidak stabil yaitu BPKPD berkoordinasi dengan Diskominfo. Kesimpulan dari penelitian ini adalah implementasi pembayaran pajak daerah melalui QRIS masih belum maksimal.

Kata kunci: kode bayar cepat Indonesia; penghasilan pajak wilayah; teknologi

Abstract: The purpose of this study was to determine the implementation of the local tax payment system through QRIS, the benefits, constraints, and solutions to problems in the implementation of QRIS. This research uses descriptive qualitative method with a case study approach. The data from this study were obtained from informants, locations, and documents, while the sampling technique used purposive sampling. Data collection techniques in this study used interviews, documents, and observations. The results show that the implementation of QRIS can facilitate taxpayer payment transactions so that it is more efficient, easy, safe in one hand without the need to queue at Bank Jateng and free of admin fees. Constraints to the implementation of QRIS are the habit of being served by village officials, the lack of dissemination from the village head to the taxpayer, and the server is still unstable. There is no solution to the problem of the habit of being served by village officials and the lack of dissemination from the village head to taxpayers, while the solution from an unstable server, namely BPKPD, coordinates with Diskominfo. The conclusion of this study is that the implementation of local tax payments through QRIS is still not optimal.

Keywords : local tax; quick response payment code Indonesia; technology
Customer Service dalam meningkatkan pelayanan nasabah selama pandemi Covid-19 pada Bank BTN Cabang Surakarta 2021
Authors: Vernanda Alfreda Larasati , Murtini Wiedy , Susantiningrum Susantiningrum
Published: June 2024

Abstrak: Penelitian ini bertujuan untuk mengetahui peran, kendala, dan solusi dalam mengatasi kendala pelayanan nasabah pada masa pandemi covid-19 2021 di Bank BTN. Penelitian ini bersifat deskriptif dengan pendekatan studi kasus. Penelitian ini menggunakan data primer dan data sekunder. Sumber datanya adalah informan, tempat, dan dokumen dengan teknik pengambilan sampel menggunakan purposive sampling dan snowball sampling. Untuk teknik analisis data diterapkan model interaktif Miles dan Huberman. Penelitian ini menemukan bahwa peran layanan nasabah di Kantor Cabang Bank BTN Surakarta sangat penting dan vital untuk meningkatkan intensifikasi dana melalui produk-produk yang tersedia. Sedangkan kendala yang dihadapi dalam pelayanan pelanggan adalah karena ketatnya SOP, masalah sistem dan IT, tingkat pendidikan dan usia pelanggan, serta panggilan masuk dari sesama rekan kerja saat bertugas. Oleh karena itu, Bank BTN Cabang Surakarta mengambil beberapa solusi untuk mengatasi permasalahan tersebut, seperti melakukan konfirmasi melalui call center, meminta maaf dan menghubungi kembali nasabah, tetap tenang dalam menangani permasalahan nasabah, dan fokus pada nasabah.

Kata Kunci:; deskriptif kualitatif; peningkatan; studi kasus

Abstract: This research aims to determine the role, constraints, and solutions in overcoming obstacles in customer service during the covid-19 pandemic 2021 at Bank BTN. This research is descriptive with a case study approach. This study uses primary data and secondary data. The data sources are informants, places, and documents with sampling techniques using purposive sampling and snowball sampling. For data analysis techniques, Miles and Huberman's interactive models are applied. This research found that the role of customer service at Bank BTN Branch office in Surakarta was crucial and vital to increase the intensification of funds through available products. Meanwhile, the obstacles faced by customer service were due to the strict SOP, system and IT problem, the level of education and age of the customers, and incoming calls from fellow colleagues when they are in charge. Therefore, the branch office of Bank BTN in Surakarta came up with some solutions to overcome the problems, such as confirming through the call centre, apologizing and re-contacting customers, remaining calm in handling customer problems, and focusing on customers.

Keywords: case study; descriptive qualitative; improvement 
Implementasi e-government di masa pandemi dalam pelayanan publik oleh Dinas Koperasi dan UKM Kabupaten Sragen
Authors: Salsabila Haniyah , Ninghardjanti Patni , Susilowati Tutik
Published: June 2024

 
Abstrak: Perkembangan teknologi informasi dan komunikasi di era Revolusi Industri 4.0 menyebabkan perubahan pada sistem yang ada di masyarakat dan pemerintahan. Pemanfaatan teknologi informasi dan komunikasi dalam sistem pemerintahan khususnya dalam hal Pelayanan Publik kepada masyarakat menjadi lebih efektif terutama di masa pandemi yang membatasi dimensi ruang pelayanan. E-Government yang digunakan pemerintah dapat mempermudah proses penyampaian pelayanan dari masyarakat kepada pemerintah. Penulis memilih Pemerintah Daerah Kabupaten Sragen karena Kabupaten Sragen telah mendapatkan penghargaan dalam best of the best e-goverment Award 2007 dari Warta Ekonomi. Penulis fokus pada penerapan e-Government di perangkat daerah khususnya Dinas Koperasi dan UKM Kabupaten Sragen, berdasarkan hasil kajian penerapan E-Government oleh Pemerintah Daerah Kabupaten Sragen belum terlaksana di semua perangkat regional.

Kata kunci: departemen koperasi; pemerintahan digital; usaha mikro, kecil, dan menengah
 
Abstract: Information and communication technology development in the Industrial Revolution era 4.0 caused changes in existing systems in society and government. The use of information and communication technology in the government system, especially in terms of Public Services to the community, becomes more effective, especially during a pandemic that limits the dimension of service space. E-Government used by the government can facilitate the process of submitting services from the public to the government. The author chose the Regional Government of Sragen Regency because Sragen Regency has received an award in the best of the best e-government Award 2007 from Warta Ekonomi. The author focuses on the implementation of e-government in regional devices, especially the Cooperative and SME Office of Sragen Regency, based on the results of a study of the implementation of E-Government by the Regional Government of Sragen Regency has not been implemented in all regional devices.

Keywords: cooperative department; digital government; micro small and medium enterprises
Profesionalisme kerja pegawai kantor Kecamatan Jebres Kota Surakarta
Authors: Nurdiana Isma Zakiyah Laily , Murtini Wiedy , Indrawati Cicilia
Published: June 2024

This study aims to determine (1) the performance that employees of the Jebres District office have carried out, (2) the supporting factors and inhibiting factors of the performance of Jebres District office employees in achieving professional performance, and (3) the efforts made by employees in achieving the professionalism of the employees of the Jebres District office. This research is a descriptive qualitative approach with a case study research type. Sources of research data were obtained from informants (Jebres District Head, Head of Public Service Section, and employees), documents (SOP, Jebres District profile modules, Training Certificates, Service Banners), and results of observations (performance). The sampling technique used purposive sampling and snowball sampling. The results showed that (1) the performance that has been carried out so far by employees of the Jebres District office refers to three aspects, namely knowledge, skills, and work attitudes: (2) Work-supporting factors owned by employees of the Jebres District office include: (a) factors of apparatus awareness; (b) rules in the public; (c) organization; (d) capabilities and skills; and (e) facilities and infrastructure factors. The inhibiting factors include (a) the quality of personnel resources, (b) government support, and (c) working conditions; (3) the efforts made by employees to achieve professionalism to increase and evaluate their commitment to work for good results. Even better, the efforts made by the government, namely by providing training, career development, and training programs.
Penerapan model pembelajaran STAD untuk meningkatkan keaktifan siswa pada mata pelajaran kepegawaian
Authors: Gloria Tyasnita - , Ninghardjanti Patni , Akbarini Nur Rahmi
Published: June 2024

This study aims to determine the increase in student activity by applying the type of cooperative learning model Student Teams Achievement Division (STAD) at SMK Negeri 1 Sukoharjo, which is motivated by the lack of active students in learning activities. This is classroom action research conducted in class XII Office Governance Automation 2 in the 2022/2023 academic year. Classroom Action Research was implemented in two cycles, with 3 meetings in each cycle. Each cycle is carried out with four activity stages: planning, action, observation, and reflection. The data was collected by observing, interviewing, and documenting, while the tools used to collect research data were student activity sheet instruments. The results of the pre-action research showed that the average result of activity was 43.8% d. In cycle I, activeness obtained a percentage of 58.4%. Then, the increase occurred significantly in cycle II with an activeness of 82%. Thus, it can be concluded that using the STAD-type cooperative learning model can increase student activity in Class XII Personnel Management Automation Office Governance Automation 2.
Pengaruh self regulated learning dan literasi digital terhadap motivasi berprestasi siswa MPLB SMKN 1 Karanganyar
Authors: Sari Winta Diah Permata , Subarno Anton , Akbarini Nur Rahmi
Published: June 2024

This study aims to (1) determine the influence of self-regulated learning on students' achievement motivation, (2) determine the influence of digital literacy on students' achievement motivation, and (3) determine the combined influence of self-regulated learning and digital literacy on students' achievement motivation. The population of this study consisted of 216 students majoring in Office Management and Business Services at SMKN 1 Karanganyar in the academic year 2022/2023. This research used the proportionate stratified random sampling technique with a sample of 138. Data collection was conducted using a questionnaire. This research can be concluded as follows: (1) there is a positive and significant influence of self-regulated learning on students' achievement motivation, based on the calculated  t-value > the tabled t-value (7.29 > 1.98) and a significance level of 0.00, (2) there is no positive and significant influence of digital literacy on students' achievement motivation, based on the calculated t-value < the tabled t-value (0.34 < 1.98) and a significance level of 0.73, and (3) there is a positive and significant combined influence of self-regulated learning and digital literacy on students' achievement motivation, based on the calculated F-value > the tabled F-value (54.10 > 3.06) and a significance level of 0.00.
Studi literatur: dampak media sosial terhadap prestasi peserta didik
Authors: Aminudin Muhammad Irfan , Sawiji Hery , Rapih Subroto
Published: June 2024

This study is a literature review that aims to synthesize and explore the impact of social media usage on learners’ achievement (students and university students). This literature review analyses various studies and research articles that examine the relationship between social media usage and students’ academic performance. The research method used is qualitative with a literature review technique. Journal searches were conducted on Google Scholar, ScienceDirect, and Scopus, covering 2015-2022. Screening and selection of studies resulted in 122 articles, with a final set of 13. The collected data was analyzed using literature review techniques according to predefined categories in the PRISMA diagram. The findings of the study indicate that there are both positive and negative impacts of social media usage on student achievement. Positive impacts include easier access to learning resources, collaborative opportunities, and improved student communication. However, there are also negative impacts, such as distraction, decreased focus, and reduced study time. This study concludes that social media usage has a significant impact on student achievement, but excessive usage can disrupt study concentration and lead to a decline in student performance.
Pengaruh fasilitas belajar dan motivasi belajar terhadap hasil belajar siswa pada mata pelajaran ekonomi
Authors: Alfiantama Javier Rama , Ninghardjanti Patni , Susantiningrum Susantiningrum
Published: June 2024

This study uses quantitative research to know; 1) whether or not there is an influence of learning facilities on learning outcomes; 2) whether or not the influence of learning motivation on learning outcomes; 3) whether or not the influence of learning facilities and learning motivation on learning outcomes. This research was conducted at SMA Negeri 1 Cikarang Utara. The total population of this research is 107, and the total sample is 52. The sampling technique used was proportionate random sampling. Data collection techniques from this study used questionnaires, observation, and documentation. The data analysis techniques used in this study are multiple regression analysis, F test, and t-test. the results of this study are: 1) There is an influence of learning facilities on learning outcomes with the results of the t-test 2.267 > 2.00958 or H0 is rejected, H1 is accepted; 2) There is an influence of learning motivation on learning outcomes with the results of the t-test 2.197 > 2.00958 or H0 is rejected, H2 is accepted; 3) There is an influence of learning facilities and learning motivation on learning outcomes with the results of the F test 39,318> 3.18b or H0 is rejected, H3 is accepted.
Peningkatan hasil belajar melalui penerapan model belajar direct instruction dengan tutor teman sebaya
Authors: Aini Awalina Nur , Indrawati Cicilia , Susantiningrum Susantiningrum
Published: June 2024

This research aims to improve students' learning outcomes in class X MPLB 3 SMK Negeri 3 Surakarta by applying direct instruction with peer tutors' learning model on office technology elements. This research is classroom action research (CAR) with two cycles. Each cycle consisted of planning, action, observation, evaluation, and reflection. The research subjects were teachers of office technology elements and students of class X MPLB 3 SMK Negeri 3 Surakarta, totaling 34 students. The data sources used in this research are primary and secondary. Primary data comes from informants, teachers, and students, and then from events, namely teaching and learning activities. Secondary data comes from documents used in research. Data collection techniques are observation, interviews, documentation, and performance training. Data analysis techniques using critical techniques and comparative descriptive statistics techniques. This research indicates that student learning outcomes have increased with each cycle. Before the implementation of the action, the learning outcomes of students who completed it were 6 students, with a percentage of 17,65%. The learning outcomes of students in cycle 1 increased to 24 students who passed with a percentage of 70.59%. Student learning outcomes in cycle 2 increased again, with 100% of students achieving completeness.
Pengaruh minat menjadi guru dan sikap profesional keguruan terhadap kesiapan mengajar mahasiswa Pendidikan Administrasi Perkantoran
Authors: Filhuda Cholid , Sawiji Hery , Ningrum Susanti
Published: June 2024

Abstrak: Tujuan penelitian ini untuk: 1) mengetahui pengaruh pengaruh minat menjadi guru terhadap kesiapan mengajar mahasiswa Pendidikan Administrasi Perkantoran UNS; 2) mengetahui pengaruh sikap profesional keguruan terhadap kesiapan mengajar mahasiswa Pendidikan Administrasi Perkantoran UNS; dan 3) mengetahui pengaruh minat menjadi guru dan sikap profesional keguruan terhadap kesiapan mengajar mahasiswa Pendidikan Administrasi Perkantoran UNS. Penelitian ini menggunakan teknik kuantitatif dengan metode korelasional. Adapun populasi dalam penelitian ini ialah seluruh mahasiswa Prodi Pendidikan Administrasi Perkantoran angkatan 2019 yang berjumlah sebanyak 83 mahasiswa. Adapun analisis data Maret bahwa: 1) terdapat pengaruh yang positif dan signifikan minat menjadi guru terhadap kesiapan mengajar dibuktikan dengan nilai t hitung (2,956) > t tabel (1,990) dan nilai signifikansi 0,042 < 0,050. 2) terdapat pengaruh yang positif dan signifikan sikap profesional keguruan terhadap kesiapan mengajar dibuktikan dengan nilai t hitung (2,081) > t tabel (1,990) dan nilai signifikansi 0,041 < 0,050. 3) terdapat pengaruh yang positif dan signifikan minat menjadi guru dan sikap profesional keguruan terhadap kesiapan mengajar dibuktikan dengan nilai Fhitung (4,791) > Ftabel (3,96) dan nilai signifikansi 0,011 < 0,050. Hasil penelitian juga Maret bahwa minat menjadi guru dan kesiapan mengajar dapat mempengaruhi kesiapan mengajar sebesar 10,7% sedangkan 89,3% lainnya dipengaruhi oleh variabel lain.

Kata Kunci: antusiasme menjadi guru; ketangkasan mengajar; sikap sportif

 

Abstract: This study investigates the impact of interest in becoming a teacher and teacher professional attitudes on the readiness to teach Office Administration Education students at UNS. Employing quantitative techniques with correlational methods, the study includes all students from the Office Administration Education Study Program class of 2019 (n = 81). Key findings are as follows: (1) Interest in Becoming a teacher: There is a positive and significant influence on teaching readiness (t-count = 0.956, p < 0.05). (2) Teacher Professional Attitudes: Teacher professional attitudes also significantly affect teaching readiness (t-count = 2.081, p < 0.05). (3) Combined Influence: Considering both interest in becoming a teacher and professional attitude, there is a positive and significant impact on teaching readiness (F-count = 4.791, p < 0.05). Furthermore, the study reveals that interest in becoming a teacher and readiness to teach collectively contribute to 10.7% of teaching readiness, while the remaining 89.3% is influenced by other variables.

Keywords:  enthusiasm to become a teacher; sportsmanship; teaching agility
Cold Hydraulic Extraction Optimization and Characterization of Balanites aegyptiaca and Ceiba pentandra Seed Oils
Authors: Nitièma-Yefanova Svitlana , Georges Yé Siédouba , Son Gouyahali , Nébié Roger C. H. , Bonzi-Coulibaly Yvonne L.
Published: June 2024

Non-edible vegetable oils have a huge potential for many industrial applications. Most of them are expressed by mechanical pressing, but data on the different operating conditions to achieve optimal extraction yields and high-quality oil are scarce. Hence, the objective of this study was to optimize key hydraulic extraction parameters at ambient temperature (25 °C) of Balanites aegyptiaca and Ceiba pentandra oils by increasing the oil recovery. Optimal holding time, applied pressure, compression speed, and press cage charge were determined for whole and crushed oleaginous material. The results indicate that the B.aegyptiaca kernels and C.pentandra seeds contained 2.7 and 5.7% moisture, as well as 46.3 and 26.2% fat, respectively. Under the optimal operating conditions, the oil recovery (wt.%. d.b.) from whole (crushed) material was 73.4 (69.8) B.aegyptiaca kernels and 38.2 (41.2) C.pentandra seeds. The extracted oils have a high content of unsaturated fatty acids including of about 74 wt.% for B. aegyptiaca and 69 wt.% for C.pentandra. They were particularly rich in linoleic ω-6 acid, 45.32 and 38.77 wt.%, respectively. The chemical characteristics of cold-extracted B. aegyptiaca and C.pentandra oils were 10 and 20 ppm phosphorus, 2.8 and 3.5 ppm iron, 0.0 ppm copper, 0.06 and 0.1% water-volatile matter, respectively. These valuable material properties make the B.aegyptiaca and C.pentandra oils an ecological and renewable resource for multipurpose applications.
Enhanced learning: Designing bifocal modeling practicum tools with ESP32 for exploring kinetic theory of gases
Authors: Sujito Sujito , Sulur Sulur , Hudha Muhammad Nur , Winarno Nanang , Sunardi Sunardi
Published: June 2024

This research was conducted to obtain an initial design for a laboratory practical tool based on bifocal modeling assisted by an ESP32 microcontroller for kinetic gas theory. This study was conducted to obtain an initial design for a practical laboratory tool based on bifocal modeling assisted by the ESP32 microcontroller on the kinetic theory of gases. This study was conducted descriptively through a literature review of various book articles and materials. Interviews were conducted with students and physics teachers in high schools (9 students and two teachers in Malang, 15 students and three teachers in Bandung) in Indonesia. Interviews were conducted to obtain an overview of the application of physics learning and reveal other potential problems students and teachers face. The design of the bifocal modeling tool developed has been consulted with physics and ICT learning experts. The results are that it needs to be further developed and maintained until the manufacturing stage. Bifocal modeling based on the design developed in this study has the potential to facilitate students to conduct scientific experiments related to the kinetic theory of gases. Based on the equipment to be developed, it is expected that students will be able to observe macroscopic gas phenomena through actual experiments, monitor microscopic phenomena visualized through computer models, collect data in actual experiments and computer simulations, and compare data. Students' understanding of the concept of the kinetic theory of gases has the potential to be improved by conducting practical work using bifocal modeling-based tools.
Expeditionary ground rehabilitation for military-vehicle traffic
Authors: Bell Haley , Edwards Lulu , Rushing John
Published: June 2024

The research objective for this study is to identify and evaluate techniques for soil stabilization to support military-vehicle ground maneuver in contested environments. Various types of stabilizers mixed with silty sand are evaluated in the laboratory for their compressive strength at various soil moisture contents and in the field for their rutting performance. Field data are analyzed for the ability to withstand trafficking from a military ground vehicle by evaluating the rut depth and measured instrumentation data. The field testing shows that the rapid soil stabilization materials and techniques can produce repairs that withstand required traffic without traditional pavement surface materials.
Organization оf Electrochemical Protection оf Steel Underground Pipelines Against Corrosionin the Gas Distribution Industry of the Republic of Belarus
Authors: Strutsky N. V. , Romaniuk V. N.
Published: June 2024

Steel underground gas pipelines occupy a significant share of the total length of gas distribution pipelines,  and therefore their maintenance in proper condition is a constant and very urgent task. Due to its global nature, the main influencing factor affecting the technical condition of any steel underground pipelines, including gas pipelines, is corrosion, primarily soil corrosion. To protect against it on pipeline networks, along with insulating coatings, electrochemical protection (ECP) is applied, that is, following the definition of STO [Standard of Organization] 17330282.27.060.001–2008,  protection of metal against corrosion in an electrolytic environment, carried out by establishing a protective potential on it or eliminating the anodic potential shift from the stationary potential. In the gas distribution industry of the country, methods and means of electrochemical protection have been applied since the beginning of gasification and the construction of the first gas pipelines. All gas supplying organizations of the State Production Association for Fuel and Gasification “Beltopgaz” (six regional and Minsk city), which operate gas distribution facilities, have specialized corrosion protection services. These services provide maintenance of available ECP equipment, conduct electrical measurements on gas pipelines and corrosion studies of soils, and have certified laboratories. This paper is devoted to the analysis of domestic experience in organizing electrochemical protection of steel underground gas distribution pipelines, searching for promising directions for its improvement and increasing efficiency through the implementation of a unified industry technical policy, automation and telemechanization of ECP equipment in the general context of digital transformation, optimization of the timing and volume of maintenance.
Laser deposition of aluminum and magnesium‑based alloys for repair and surface restoration of components
Authors: Nemenenok B. M. , Devoyno O. G. , Lushchik P. E. , Rafalski I. V. , Rulenkov A. D.,
Published: June 2024

The results of studying the processes of laser deposition of aluminum and magnesium‑based alloys, the features of the structure of deposited layers using electron microscopy and X‑ray computed tomography data, measurements of microhardness after laser deposition of aluminum and magnesium alloys are presented. Modeling of the stress‑strain state of flat components during laser deposition of an aluminum‑magnesium alloy containing 0.6–0.95 % magnesium, 0.7–1.0 silicon, up to 0.3 titanium, up to 0.5 zinc, and up to 0.4 % manganese was performed. The nature of the distribution of deformations and stresses during the use of various technological schemes of laser deposition during surface treatment of aluminum‑magnesium alloys by laser deposition methods is established.
Thermodynamics of the substantial universe
Authors: Stetsenko V. Yu.
Published: June 2024

Based on thermodynamic calculations of the substantial Universe, it is shown that the cosmological theory of the Big Bang is erroneous. The thermodynamic ban on this theory makes the hypothesis of dark energy expanding the substantial Universe also erroneous. It is shown that the substantial Universe is a thermodynamically equilibrium system. Therefore, the substantial Universe cannot disintegrate, losing its structure, cannot shrink to a point, cannot disappear into a black hole. The equilibrium substantial Universe exists forever, preserving its enthalpy, entropy, mass and temperature. The main reason for the redshift of spectral lines of light from distant stars and galaxies is not the expansion of the substantial Universe, but its clouds of gas and dust, which reduce the energy of photons.
Structural stability during remelting of foundry binary alloys
Authors: Marukovich E. I. , Stetsenko V. Yu. , Stetsenko A. V.
Published: June 2024

A nanostructural mechanism of structural stability during remelting of foundry binary alloys has been developed. This mechanism is determined by the stability of the centers of crystallization of microcrystals of α‑phases and β‑phases. It is shown that this stability depends on the concentration of adsorbed hydrogen and oxygen atoms. The higher these concentrations, the less stable the centers of crystallization of α‑phase and β‑phase microcrystals in melts of foundry binary alloys, and vice versa. With an increase in overheating and (or) the holding time of melts of foundry binary alloys, the concentrations of adsorbed hydrogen and oxygen atoms in them increase. As a result, structural stability decreases during the remelting of foundry binary alloys.
Improving the technology of producing seamless hot‑rolled pipes from stainless steel l80 type 13Cr in the tube rolling workshop
Authors: Strelchenko A. V. , Avdeev S. V. , Shcheglov A. V. , Kom O. I. , Yakush V. I.
Published: June 2024

The production of seamless hot‑deformed pipes from martensitic stainless steel with a high chromium content, used under the constant influence of aggressive environments, involves overcoming a series of technological challenges. These challenges are due to the metal’s structural features, such as relatively low plasticity, a narrow temperature range for hot deformation, a tendency to defect formation during rolling, and more intense wear on the rolling tools. The article discusses the main stages of research work on mastering the technology of producing seamless hot‑rolled pipes from stainless steel grade L80 type 13Cr at OJSC “BSW – Management Company of Holding “BMC”. It presents the results and complexities of mastering the technology for producing seamless stainless steel pipes, analyzes the results aimed at reducing the cost of finished products by increasing the durability of piercing mandrels, the resistance of disc saws for cutting blanks, eliminating metal adhesion to the piercing mill’s Dishar discs, increasing the productivity of the rolling line and heat treatment process.
Processes occurring during the synthesis of wollastonite‑containing refractory used in non‑ferrous metallurgy
Authors: Dyatlova E. M. , Panteleenko F. I. , Popov R. Ju. , Shimanskaya A. N. , Kavrus I. V. , Samsonova A. S. , Diakonov O. M.
Published: June 2024

This article presents the results of research on the processes occurring during the synthesis of wollastonite‑containing ceramics obtained from various clay components. The peculiarities of crystalline phase formation in the material are described. The obtained information lays the foundation for the organization of ceramic production that is in demand in the metallurgical industry.
The influence of dispersing structure in multiple drawing on the plasticity of low‑carbon steel
Authors: Fetisov V. P.
Published: June 2024

During repeated drawing of low‑carbon steel, the initial grain size of ferrite and the intensity of hardening affect the accumulation of defects in the crystal structure and the overall decrease in the plastic properties of cold‑formed wire. Minimizing the cell sizes and reducing the intensity of deformation hardening for a more dispersed initial structure maintain an increased relative contraction of fine‑grained steel after large total compressions. The increase in the tendency to harden coarse‑grained steel is accompanied by an increased decrease in the ductility of the wire during repeated drawing. Large total compressions increase the structural sensitivity of the relative constriction of low‑carbon wire.
Quality of Metal Surface After Hydroabrasive Cleaning from Corrosive Deposits
Authors: Kachanov I. V. , Filipchik A. V. , Kovalevich V. S. , Shatalov I. M. , Nedvetsky S. V.
Published: June 2024

A brief analytical review of existing hydraulic methods and techniques used to remove corrosive deposits formed on metal surfaces is provided. An effective cleaning method is described – hydro-abrasive cleaning (HAC) using bentonite clay, soda ash and polyacrylamide in its composition, which can not only improve the quality of the surface being cleaned, but also form a corrosion-protective film coating on it. The results of experimental research to study the influence of hydro-abrasive cleaning technology parameters on the processed surface of samples made from steels Ст3 (St3), Ст20 (St20) and Ст45 (St45) are presented. It has been shown that changing the parameters of hydro-abrasive cleaning (jet speed, distance to the treated surface, time) makes it possible to achieve a roughness of metal products ranging from 3.2 μm to 12.5 μm. It has been established that the use of a new technology of hydro-abrasive cleaning (HAC) results in the removal of corrosive deposits from metal surfaces with a minimum roughness of up to 0.01 microns. It has also been shown that with a bentonite clay content of 2–4 %, it is possible to achieve surface roughness in the range of 20–30 μm, which is optimal for the flame spraying process. With a bentonite clay content of 0.5–2 %, a surface roughness of 30–50 μm can be achieved, which is optimal for the subsequent painting process. In addition, when carrying out hydro-abrasive cleaning (HAC) on the treated metal surfaces, a long-term anti-corrosion coating is formed, which retains its properties for a long time (up to 1 year).
Strength Indicators of Fiber Reinforced Concrete with Carbon Nanomaterials
Authors: Leonovich S. N. , Sadovskaya E. A.
Published: June 2024

Concrete composites with low defects, dense and homogeneous, with a high degree of adhesion between the cement matrix and aggregates, as well as a high ratio between static tensile and compressive strengths and plasticity have the best crack resistance characteristics. This ratio increases in the case of the use of fiber-reinforced concrete. Modern research in nanotechnology focuses on the management of matter at the nanoscale level, which makes it possible to create materials with new properties. Due to the high aspect ratio, flexibility, high strength and rigidity, carbon nanotubes (CNTs) exhibit reinforcing properties. Due to their nanoscale features, CNTs interact with a complex network of calcium-silicate-hydrate binder (C – S – H), contribute to a decrease in porosity and compaction of the cement stone structure, increase the shear forces of matrix adhesion in the contact zone. Thus, there are all prerequisites to assert that fiber concrete with a cement matrix modified with carbon nanotubes will have the required high strength characteristics and crack resistance due to multilevel dispersed reinforcement and the efficient operation of fiber in a nanomodified concrete matrix. This article presents the results of testing samples made of cement stone, concrete and fiber concrete with carbon nanotubes. The presence of carbon nanotubes in cement stone contributes to an increase in compressive strength by 11 %, tensile strength during bending by 20 %. The test results of samples made of reinforced fiber concrete modified with nanocarbon materials have shown an increase in tensile strength during bending up to 109 %, tensile strength during splitting up to 82 %, axial tensile strength up to 78 %.
Continuously Variable Two-Flow Hydrostatic-Mechanical Transmission of Crawler Tractor
Authors: Zhdanovich Ch. I.
Published: June 2024

The paper proposes an original design of a continuously variable two-flow hydrostatic-mechanical transmission, which ensures division of the power flow along the sides of the crawler tractor. To ensure stability of rectilinear motion, their volumetric and mechanical efficiency, the maximum pressure of the working fluid in the hydraulic transmission, the maximum speed and torque on the shaft of the hydraulic motor. The parameters of an unregulated hydraulic motor, an adjust-table pump and mechanical transmission elements are selected. A mathematical model of the rectilinear motion of a caterpillar tractor with a continuously variable hydrostatic-mechanical transmission has been developed, taking into account the weight of the tractor, the parameters of the running system, the characteristics of the internal combustion engine, the parameters and efficiency of hydraulic machines, gearboxes, range and transfer boxes, planetary gear and allowing to determine the efficiency of individual branches and the entire transmission, carry out traction calculations of the tractor. A calculation program has been developed that implements the mathematical model. The parameters of the dual-flow transmission are selected so that most of the torque is transmitted through the mechanical branch and the transmission has a fairly high efficiency value. The maximum value of tractor traction efficiency is realized in the second and third ranges, which are designed to perform basic tillage operations.
A population-based cohort study of mitochondrial disease and mental health conditions in Ontario, Canada
Authors: Rosella Laura , Hurst Mackenzie , Buajitti Emmalin , Samson Thomas , Young L. Trevor , Andreazza Ana C.
Published: June 2024

Background

Mitochondrial disease has been linked to mental health disorder in clinical cohorts and post-mortem studies. However, a lack of population-level studies examining the relationship between mitochondrial disease and mental health has resulted in an evidence gap and creates a challenge for identifying and addressing care needs for the mitochondrial disease population.
Using multiple linked population health databases in a single-payer health system that covers the full population, this study aimed to investigate the prevalence of mood disorders and other mental health conditions in patients with mitochondrial disease and to examine the joint impact of mitochondrial disease and mental health conditions on healthcare use and health system costs. To contextualize these findings, a clinical comparator cohort of multiple sclerosis (MS) patients was analyzed.

Results

Overall, co-prevalent mental health conditions are common in the mitochondrial popualtion. Double the proportion of patients in the mitochondrial disease cohort had a co-prevalent mental health illness as compared to the MS population (18% vs 9%). Healthcare utilization was highest among patients with co-prevalent mitochondrial disease and mental illness, with 49% hospitalized within 1 year prior to cohort entry (compared to 12% of MS patients with no mental health condition). Costs were likewise highest among mitochondrial disease patients with mental health conditions.

Conclusions

This study presents the first comprehensive, population-wide cohort study of mitochondrial disease and co-prevalent mental health conditions. Our findings demonstrate a high burden of mental health conditions among mitochondrial disease patients, with high associated health care needs. We also find that patients with concurrent mental illness and mitochondrial disease represent a high-burden, high-cost population in a single-payer health insurance setting.