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All Journal Jurnal Pendidikan Teknologi dan Kejuruan SPEKTRUM: Jurnal Pendidikan Luar Sekolah (PLS) JTEV (Jurnal Teknik Elektro dan Vokasional Journal of Tropical Soils Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) JOIV : International Journal on Informatics Visualization AL ISHLAH Jurnal Pendidikan Sinkron : Jurnal dan Penelitian Teknik Informatika QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama Jurnal Penelitian Pendidikan IPA (JPPIPA) Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN TAMBUSAI JOURNAL OF SCIENCE AND SOCIAL RESEARCH JRTI (Jurnal Riset Tindakan Indonesia) SCAFFOLDING: Jurnal Pendidikan Islam dan Multikulturalisme JSR : Jaringan Sistem Informasi Robotik Community Engagement and Emergence Journal (CEEJ) Jurnal Pendidikan Teknologi Informasi dan Vokasional At-Tajdid : Jurnal Pendidikan dan Pemikiran Islam Teknomekanik Jurnal Vokasi Mekanika Journal of Community Service Journal of Engineering Researcher and Lecturer Asian Journal of Science, Technology, Engineering, and Art Journal of Innovative and Creativity Jurnal Penelitian Pendidikan Indonesia
Refdinal, Refdinal
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From passive to critical consumption: The role of educational content in short videos to improve students' critical thinking skills Aspar, Fathir; Refdinal, Refdinal; Erizon, Nelvi; Jasman, Jasman; Irzal, Irzal; A, Yufrizal
Jurnal Pendidikan Teknologi Kejuruan Vol 8 No 1 (2025): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v8i1.42323

Abstract

The engaging and personalized nature from short video makes it quickly popular, yet concerns persist about their potential to diminish critical thinking skills. This study investigates whether short videos with educational content can improve students' critical thinking skills. Using a quasi-experiment method, Thirty-three participants were divided into control and experimental groups, with critical thinking measured using the Holistic Critical Thinking Scoring Rubric (HCTSR) based on essay analysis in pretest and posttest. After administering educational short videos to the experimental group, the results showed that there was an increase in students' critical thinking skills, shown by the result of controlling the pretest variable through the ANCOVA test with a p-value of <0.001. The result highlights the potential of educational short videos as tools for fostering critical thinking by providing interventions which prioritize treatment fidelity through standardized protocols (SOPs) for content delivery, validating assessment tools, and structuring content design. Recommendations for future research include larger sample sizes, repeated data collection at strategic intervals, and rigorous validation of question complexity.
FILSAFAT TVET DALAM LENSA SDGs REALISME, HATI DAN LOGIKA DALAM PENDIDIKAN VOKASI Yuberta, Andre; Refdinal, Refdinal; Abdullah, Rijal; Mardizal, Jonni
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 4 (2025): November 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i4.4802

Abstract

Abstract: Technical and Vocational Education and Training (TVET) plays a crucial role in bridging the needs of the industrial world with the goals of sustainable human development. Within the context of the Sustainable Development Goals (SDGs), particularly Goal 4.7 on Education for Sustainable Development, this study revisits the philosophy of TVET through three dimensions: realism, heart, and logic. The research aims to uncover the philosophical foundations of TVET within the SDG framework by tracing classical German thought (Kerschensteiner, Spranger, Fischer) alongside modern paradigms rooted in technology, vocational psychology, and educational sustainability. The method employed is an integrative bibliometric-based literature analysis of 1,041 Scopus-indexed articles (2015–2024), combined with a philosophical review of five major sources from Germany, the United Kingdom, China, and Indonesia. The findings reveal four key insights: (1) Educational realism emphasizes contextual and meaningful work competencies; (2) The dimension of heart highlights moral values, humanity, and psychological well-being within the TVET system; (3) Educational logic is reflected in technology-based curricula that integrate knowledge, skills, and values; and (4) The integration of SDGs fosters ecological awareness and social responsibility. TVET is thus conceptualized as a philosophical system that unites work reality, humanity, and scientific rationality toward a sustainable vocational curriculum for the 21st century. Keyword: Philosophy of TVET; SDGs; vocational ethics; vocational psychology; educational sustainability Abstrak: Pendidikan Teknik dan Kejuruan (TVET) berperan penting dalam menjembatani kebutuhan dunia industri dengan tujuan pembangunan manusia berkelanjutan. Dalam konteks Tujuan Pembangunan Berkelanjutan (SDGs), khususnya poin 4.7 tentang Education for Sustainable Development, kajian ini meninjau ulang filsafat TVET melalui tiga dimensi: realisme, hati, dan logika. Penelitian ini bertujuan mengungkap fondasi filosofis TVET dalam kerangka SDGs dengan menelusuri pemikiran klasik Jerman (Kerschensteiner, Spranger, Fischer) serta paradigma modern berbasis teknologi, psikologi vokasional, dan keberlanjutan pendidikan. Metode yang digunakan adalah integrative literature analysis berbasis bibliometrik terhadap 1.041 artikel Scopus (2015–2024), dipadukan dengan telaah filosofis terhadap lima sumber utama dari Jerman, Inggris, Tiongkok, dan Indonesia. Hasil penelitian menunjukkan empat temuan utama: (1) realisme pendidikan menekankan kompetensi kerja kontekstual dan bermakna; (2) dimensi hati menyoroti nilai moral, kemanusiaan, dan kesejahteraan psikologis dalam sistem TVET; (3) logika pendidikan tercermin pada kurikulum berbasis teknologi yang menghubungkan pengetahuan, keterampilan, dan nilai; serta (4) integrasi SDGs menumbuhkan kesadaran ekologis dan tanggung jawab sosial. TVET dipandang sebagai sistem filosofis yang menyatukan realitas kerja, kemanusiaan, dan rasionalitas ilmiah menuju kurikulum kejuruan berkelanjutan abad ke-21. Kata kunci: Filsafat TVET; SDGs; etika vokasional; psikologi kejuruan; keberlanjutan pendidikan. 
PEMBERDAYAAN BUMNAG KENAGARIAN ANDIANG SEBAGAI PENGHASIL PUPUK GRANUL UNTUK TANAMAN HIAS Refdinal, Refdinal; Ambiyar, Ambiyar; Fernandez, Donny; Adri, Junil
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 5, No 2 (2022): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v5i2.559-568

Abstract

Sejak pandemi covid-19 muncul di indonesia, kebijakan barupun bermunculan, seperti Work From Home (WFH) yang mana masyarakat dibatasi untuk keluar rumah dan disarankan untuk melakukan pekerjaan dirumah saja. Masyrakatpun menghabiskan banyak waktu dirumah selama pandemi. Hal ini membuat orang banyak melakukan hal-hal baru selama dirumah salah satunya yakni memelihara tanaman hias dirumah. Memelihara tanaman hias bisa memberikan banyak manfaat salah satunya memberi keindahan pada rumah. Namun keindahakan yang dihasilkan oleh tanaman hias tentunya tidak lepas dari cara memelihara dan pemberiaan pupuk. Pupuk bagi tanaman sangat diperlukan untuk menambah unsur hara bagi pertumbuhan tanaman. Pupuk yang banyak diminati oleh oleh para perajin tanaman hias adalah pupuk gradul karena bentuknya yang menarik, keterbiasaan menggunakan pupuk gradul dan kemudahan dalam menggunakannya. Banyaknya minat akan pupuk granul menjadikan peluang produsen pupuk granul terutama di Kenagarian Andiang Kabupaten 50 Kota yang terdapat banyak populasi ternak ayam, sehingga kotoran ayam bisa dijadikan bahan baku pupuk granul. Dalam kegiatan pengabdian ini, dilakukan pengolahan pupuk granul menggunakan alat dengan sistem pirangan putar sehingga pengolahan pupuk granul menjadi lebiih mudah. Hasil dari pelaksanaan kegiatan ini memberikan manfaat yang begitu terasa bagi masyarakat terutama bagi perekonomian masyarakat di Kenagarian Andiang Kabupaten 50 Kota.
INOVASI TEKNOLOGI MESIN POWER THRESER UNTUK PETANI PADI DI KABUPATEN DHARMASRAYA Syahri, Budi; Refdinal, Refdinal; Aziz, Abdul
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 5, No 2 (2022): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v5i2.594-603

Abstract

The purpose of implementing this community service activity is to improve the economy of the rice farming community in Dharmasraya Regency, especially Kenagarian Koto Baru. From the results of a survey conducted by the service team, an indication of the basic problem of farmers is in the process of handling rice at post-harvest. In this process, farmers spend a lot of energy, time and money because they tend to be carried out manually. Through this service activity, the service team tries to unravel the problems of farmers by making technological innovations for the power thereser machine. The science and technology offered in this activity is the construction of a power thereser machine that is equipped with a long blow. The function of this blowing tunnel is to efficiently separate filled rice and empty rice. So that the rice yields obtained by farmers are clean with the best quality of grain. The method of applying science and technology in this activity is to provide introductory theory, demonstration, practice and its application directly. The introductory theory is applicable, namely the introduction of tools, how to use them, their functions and application in the field. The results of the implementation of this activity provide significant benefits to the work process of farmers in operating the rice thresher machine. The level of satisfaction and assessment of farmers on this rice thresher machine is very high because it is effective in construction and efficient in operation
Characterization of Density and Stability of Oil Palm Empty Fruit Bunch Briquettes without Binder under Variations of Molding Temperature and Compaction Pressure Albasyit, Muhammad Ravi; Fernanda, Yolli; Refdinal, Refdinal; Kurniawan, Andre
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 4 (2025): Jurnal Vokasi Mekanika
Publisher : Departemen Teknik Mesin Fakultas Teknik Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i4.902

Abstract

The dependence on fossil fuels in Indonesia continues to increase in line with the growing energy consumption, thus necessitating alternative energy sources that are more environmentally friendly and sustainable. Oil palm empty fruit bunches (OPEFB) are agro-industrial waste with great potential to be utilized as raw material for briquette production; however, their utilization remains suboptimal. This study aims to analyze the effect of molding temperature and compaction pressure on the density and stability of binderless OPEFB briquettes. The research method employed is experimental, using a quantitative descriptive-analytical approach with non-carbonized briquettes. The treatment variations include molding temperatures (230°C, 250°C, and 280°C) and compaction pressures (1 MPa, 3 MPa, and 5 MPa) applied to two types of materials, namely dried and undried OPEFB. The results indicate that increasing temperature and compaction pressure significantly enhances briquette density. At a temperature range of 250–280°C and a pressure of 5 MPa, the briquettes achieved the highest density (>1.0 g/cm³) with strong shape stability. The thermoplastic lignin content in OPEFB melts at high temperatures, acting as a natural binder. Briquettes with a density ≥0.80 g/cm³ exhibited strong physical integrity, while those with a density <0.70 g/cm³ tended to be brittle. It can be concluded that the optimum conditions for producing high-quality binderless OPEFB briquettes are achieved at a temperature range of 250–280°C and a compaction pressure of 5 MPa, resulting in briquettes with excellent density and shape stability suitable as a renewable alternative energy source
Community Empowerment Through Rice Thresher Technology Innovation in Realizing Post-Harvest Efficiency and Local Food Security in Dharmasraya Regency Refdinal, Refdinal; Adri, Junil; Putri, Lili Dasa
SPEKTRUM: Jurnal Pendidikan Luar Sekolah (PLS) Vol 13, No 4 (2025): SPEKTRUM: Jurnal Pendidikan Luar Sekolah (PLS): Publishing November 2025
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/spektrumpls.v13i4.136031

Abstract

This community service program is motivated by the fact that the people of Jorong Pinang Gadang still face various obstacles in managing agricultural products, especially in the post-harvest stage. The limitations of the tools and technology used are still the main obstacles in increasing agricultural efficiency and productivity. From an economic perspective, the income of the community largely depends on agricultural products, especially from the sale of grain. However, due to the limitations of post-harvest technology, the results obtained often experience shrinkage due to loss of grain in the threshing process. In addition, the selling price of grain which tends to fluctuate makes it difficult for farmers to obtain stable profits. This service aims to increase the efficiency of the rice threshing process and stimulate interest in rice farming among farmers, especially in Jorong Pinang Gadang, Nagari Koto Padang, Kabupaten Dharmasraya. The stages of the activity include: (1) stages starting from field surveys, (2) identifying problems, (3) determining solutions, (4) making designs, (5) making tools, (6) testing tools, (7) demonstrations, (8) handover of tools and, (9) evaluation and monitoring. This training successfully improved post-harvest efficiency for farmers and achieved local food security for the community in Nagari Koto Padang. The innovative rice thresher technology has increased farmers' productivity, both in terms of harvest quality and economics. Furthermore, the community has gained a better understanding of how to effectively manage a farmer group to achieve shared goals. Keywords: Training, innovation in rice thresher technology, post harvest efficiency, food security
Prediksi Beban Turbin Uap Menggunakan Machine Learning Berbasis Random Forest untuk Optimalisasi Efisiensi Turbin Uap Pada PLTU Ombilin Alfarizi, Diki; Arwizet, Arwizet; Refdinal, Refdinal; Primawati, Primawati
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i3.2880

Abstract

Penelitian ini mengembangkan model prediktif untuk estimasi beban turbin uap dengan mengimplementasikan teknik machine learning Random Forest dalam rangka optimasi efisiensi operasional turbin uap pada fasilitas PLTU Ombilin. Proses penelitian melibatkan akuisisi data operasional historis yang kemudian melalui tahap preprocessing menggunakan normalisasi Min-Max Scaler dan pembagian dataset dengan rasio 80:20 untuk training dan testing. Optimasi model Random Forest dilakukan melalui hyperparameter tuning untuk memperoleh konfigurasi optimal, menghasilkan performa dengan MAE 1.024, RMSE 0.987, dan R-squared 0.893 pada evaluasi testing. Hasil evaluasi mengindikasikan kemampuan model dalam menghasilkan prediksi akurat dengan generalisasi yang memadai terhadap data baru. Implementasi model ini diproyeksikan dapat berfungsi sebagai tool decision support dalam manajemen operasional pembangkit, meningkatkan thermal efficiency turbin uap, dan mendukung reduksi konsumsi fuel serta emisi greenhouse gas. Riset ini merekomendasikan eksplorasi algoritma komplementer seperti Gradient Boosting, XGBoost, dan Artificial Neural Network untuk benchmarking performa dan validasi model yang lebih komprehensif.
Effectiveness of Using Virtual Reality Media for Students' Knowledge and Practice Skills in Practical Learning Refdinal, Refdinal; Adri, Junil; Prasetya, Febri; Tasrif, Elfi; Anwar, Muhammad
JOIV : International Journal on Informatics Visualization Vol 7, No 3 (2023)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/joiv.7.3.2060

Abstract

Virtual Reality (VR) has become an option to be used as a learning medium in engineering. A study of the effectiveness of VR is needed to determine which fields and types of learning are suitable to employ it. This work aims to reveal the effectiveness of virtual reality media on students' cognitive and practice skills. The role of the media as a tool to make learning more efficient and effective. VR media brings learning in the virtual world that seems to be done in real terms. The research method used was a quasi-experiment with a posttest-only control group design research approach. The research subject consisted of two homogeneous classes. Learning outcomes are evaluated by testing students' cognitive and practice skills. The novelty of this research is the creation of learning media that are identical to the welding process simulator. Visual practice places and equipment in virtual form through VR are made to resemble practice places and equipment used in real situations. This similarity aims to provide concrete information about the welding process. The study revealed that the use of VR media significantly affected their knowledge. However, it did not significantly affect their practice skills. VR has not been able to provide an experience closer to real-life conditions during welding, such as heat, sparks, and sounds that appear when the electrode touches the workpiece. The distance between the electrode and the workpiece significantly affects the welding result in the welding process.
Co-Authors A, Yufrizal Abdul Aziz Abdullah, MT, Dr. Rijal Abrar Tanjung Adzkia, Mhd Safiq Afriza Media Albasyit, Muhammad Ravi Alfarizi, Diki Ambiyar, Ambiyar Andesko, Rio Andre Kurniawan Anwar, M Ardi, Junil Arif, Chandra Armansyah Armansyah Arwizet Arwizet, Arwizet Aspar, Fathir Aswardi Aswardi Azis, Ismail Berliansyah, Aqilvin Budi Syahri Chandra, Rofi Dedy Irfan Delima Yanti Sari Dinul, Fadhilah Ikhsan Donny Fernandez Dori Yuvenda Edidas , Edidas Efrianova, Vivi Elfi Tasrif Erizon, Nelvi Fadhilah Fadhilah Fadhli Ranuharja Fadillah, Fikri Fahmi Rizal Fani Keprila Prima Fauza, Anna Niska Febri Prasetya Ferdiansyah, Ferdiyansyah Fiandra, Y A Fiki Efendi Firdaus, Jeri Rizal Firdaus, Novemli Fitrah Qalbina Ganefri . Giatman, M Gusnita, Wiwik Hafis, M Hamdani Hamdani Hamizum, Bestra Haris, Zainal Abdul Hasan Maksum Herisvan Hendra Hilman, Antoni Ika Parma Dewi Indarta, Yose Irzal, Irzal Jalinus, N Jalius, Nizwardi Jasman Jasman Junil Adri Kamil, Fadhil Muhammad Kandena Putra, Tegar KRIKORIAN, MIHAEL Le, Sai Kham Lili Dasa Putri Maiyana, Efmi Mardizal, Jonni Muhammad Anwar Mulianti Murni Astuti Muskir, Mukhlidi Mustakim, Waradzi Nanda, Iffarial Nasution, Yeni Puspitasari Nizwardi Jalinus Novendra, Alan Novrita, Sri Zulfia Nurdin Hendri Nurmansyah, Ridho Prasetyo, Vicky Primandari, Sri Riski Putri Primawati Primawati, Primawati Purwantono, Purwantono Putra, Dino Adi Putra, Randi Purnama Rahma Putri, Nadia Suci Rahmadani, Ade Fitri Ramli Ramli Randa Afabek Remon Lapisa Rifelino Rifelino Riki Saputra, Riki Rini Widyastuti Rozandi, Azel Saputra, Firman Omni Sari, Adha Kurnia Sefriani, Rini Sidiq, Ahmad Halim Sri Rizki Putri Primandari sudiani, yoni Syahril Syahril Syamsu, Azhari Tamara, Yolanda Ta’ali, Ta’ali Unung Verawardina, Unung Usmeldi Usmeldi Utari, Nadia Wagino Waradzi Mustakim Waskito Waskito, Waskito Winda Lestari Siregar Yolli Fernanda Yuberta, Andre Yufrizal Yufrizal, Yufrizal Yulnafatmawita Yulnafatmawita