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All Journal Mimbar Ilmu Ensiklopedia of Journal Jurnal EDUCATIO: Jurnal Pendidikan Indonesia Jurnal Riset Komunikasi Science Education and Application Journal Jurnal Ilmiah Profesi Pendidikan PAKAR Pendidikan Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat International Journal of Business, Economics, and Social Development MSI Transaction on Education AEEJ : Journal of Automotive Engineering and Vocational Education Scientific ACADEMIA: Jurnal Inovasi Riset Akademik El Madani: Jurnal Dakwah dan Komunikasi Islam Journal of Comprehensive Science Ensiklopedia Research and Community Service Review INJECTION: Indonesian Journal of Vocational Mechanical Engineering JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia J-CoSE: Journal of Community Service & Empowerment
Sugiarto, Toto
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Religion Arts Humanities Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Social Sciences Transportation Other

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The Relationship between Social Media Consumption and Generation Z's Marriage Preference Lazuardi, Revalina Azzahra; Nugraha, Yogaprasta Adi; Firdaus, Dwi Rini Sovia; Sugiarto, Toto
Jurnal Riset Komunikasi (JURKOM) Vol. 9 No. 1 (2026): February 2026
Publisher : Asosiasi Pendidikan Tinggi Ilmu Komuniasi (ASPIKOM) Wilayah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38194/jurkom.v9i1.1540

Abstract

The widespread circulation of “fear of marriage” narratives on social media has intensified public discourse on intimate relationships and raised concerns about shifting marital perceptions among Generation Z. This study examines the relationship between social media exposure, perceptions of negative marriage-related issues, and marriage preferences among Generation Z. A quantitative descriptive approach was employed using accidental sampling. Data were collected from 390 undergraduate students from Universitas Pakuan, IPB University, and Universitas Ibn Khaldun in Bogor City, Indonesia, through a structured questionnaire with a four-point Likert scale. Descriptive statistics and Pearson correlation tests were applied. The findings reveal a weak but significant positive correlation between social media exposure and marriage preference (r = 0.164; p = 0.001), and a significant negative correlation between perceptions of negative issues such as domestic violence, financial burden, and infidelity and marriage preference (r = −0.238; p = 0.000). Notably, 95.92% of respondents reported positive marriage preferences. This study contributes to communication scholarship by demonstrating that social media does not reduce Generation Z’s intention to marry, but instead shapes more selective and rational marital decision-making within digital meaning-construction processes.
ANALISIS FAKTOR PSIKOLOGIS TERHADAP PENCAPAIAN AKADEMIK SISWA SMK: STUDI PADA PEMBELAJARAN KELISTRIKAN OTOMOTIF Owen Sitorus, Mikhael; Sugiarto, Toto; Maksum, Hasan; Rifdarmon, Rifdarmon
Ensiklopedia of Journal Vol 8, No 2 (2026): Vol. 8 No. 2 Edisi 3 Januari 2026
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v8i2.3723

Abstract

This research seeks to examine the impact of learning interest and motivation on Final Semester Examination (UAS) outcomes in the Light Vehicle Electrical Maintenance course at SMK Negeri 4 Pariaman. The study used a quantitative methodology using a correlational design. The population included all 26 students in class XI Automotive Engineering, using a saturation sample approach. Research tools included Likert scale questionnaires to assess learning interest and motivation, together with UAS score recording. The data analysis used multiple linear regression facilitated by SPSS. The findings indicated that: (1) learning interest did not significantly affect UAS results (sig. 0.424 > 0.05); (2) learning motivation did not significantly affect UAS results (sig. 0.340 > 0.05); and (3) the combined effect of learning interest and motivation did not significantly affect UAS results (F = 0.495; sig. 0.616 > 0.05), with a R² value of merely 4.1%. The results suggest that elements such as the quality of practical facilities, instructor ability, and instructional strategies have a more significant effect in student learning outcomes in productive disciplines.Keywords: Learning Interest, Learning Motivation, Learning Outcomes, Light Vehicle Electrical, Vocational High School
ANALISIS TINGKAT PENGETAHUAN PADA SOAL UAS PRODUKTIF OTOMOTIF SEMESTER GENAP 2024/2025 KELAS XII TKR SMK NEGERI TEKNOLOGI DI KOTA PADANG Al Adaby, Muhammad; Sugiarto, Toto; Arif, Ahmad; Muslim, Muslim
Ensiklopedia of Journal Vol 8, No 2 (2026): Vol. 8 No. 2 Edisi 3 Januari 2026
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v8i2.3710

Abstract

This study aims to analyze the distribution of factual, conceptual, procedural, and metacognitive knowledge levels in Final Semester Examination (UAS) questions for automotive productive subjects created by teachers at State Vocational High Schools (SMK) in Padang City. This research employs a quantitative descriptive design with a single variable of knowledge level based on Anderson's taxonomy. The research objects include 160 multiple-choice questions from the even semester UAS 2024/2025 from four State Vocational High Schools in Padang (SMKN 1 West Sumatra, SMKN 1 Padang, SMKN 5 Padang, and SMKN 8 Padang). The research instrument uses knowledge level analysis sheets based on operational verbs and question contexts. Data analysis techniques employ quantitative descriptive analysis by calculating the percentage of each knowledge level. The results show the overall distribution of knowledge levels: conceptual 49.375% (79 questions), procedural 18.75% (30 questions), factual 16.25% (26 questions), and metacognitive 15.625% (25 questions). There are significant variations among schools, particularly at SMKN 1 Padang with 70% conceptual dominance and SMKN 5 Padang with 30% metacognitive. Compared to BSNP (2018) recommendations, significant deviations occur where conceptual far exceeds standards (49.375% vs 10-20%) and procedural is below standards (18.75% vs 50-60%). However, these differences can be explained by the characteristics of vocational education that integrates written and practical assessments. This study recommends the need for teacher training in developing Bloom taxonomy-based questions, developing standardized question banks, and adjusting knowledge level distribution standards specific to vocational education.Keywords: knowledge levels, Anderson's taxonomy, final examination questions, automotive vocational education, HOTS
Analisis Kombinasi Busi Platinum, Pengapian +2°, dan Water Injection terhadap Efisiensi Pembakaran dan Ketahanan Mesin Sepeda Motor Empat Langkah Viroza, Al-Thoriq; Purwanto, Wawan; Sugiarto, Toto; Arif, Ahmad; Juanda, Ahmad
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 4 No. 2 (2026): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v4i2.346

Abstract

Penggunaan sepeda motor di Indonesia terus meningkat, memicu dua masalah utama: keterbatasan bahan bakar fosil dan meningkatnya polusi udara. Penelitian sebelumnya banyak menyoroti dampak lingkungan, namun aspek ketahanan mesin belum dikaji secara mendalam. Penelitian ini bertujuan menganalisis pengaruh kombinasi busi platinum, pengapian +2°, biogasoline E25, dan sistem Water Injection berbasis ultrasonic mist maker terhadap durabilitas mesin sepeda motor empat langkah. Metode eksperimen dilakukan dengan membandingkan kondisi standar (pertalite) dan perlakuan kombinasi selama 110 jam operasional. Hasil penelitian menunjukkan penurunan signifikan massa deposit karbon dari 680 mg menjadi 260 mg serta volume dari 378 mm³ menjadi 144 mm³, atau pengurangan lebih dari 61%. Temuan ini membuktikan bahwa kombinasi biogasoline dan Water Injection tidak hanya mengurangi pembentukan deposit karbon, tetapi juga berpotensi memperpanjang usia pakai mesin serta mendukung teknologi transportasi ramah lingkungan. The rapid increase in motorcycle use in Indonesia has created two major challenges: fossil fuel depletion and rising air pollution. While previous studies mainly focused on environmental impacts, engine durability remains underexplored. This study aims to evaluate the effects of combining platinum spark plugs, +2° ignition timing, E25 biogasoline, and a Water Injection system using an ultrasonic mist maker on the durability of four-stroke motorcycle engines. An experimental method was conducted by comparing standard conditions (pertalite) with the combined treatment over 110 hours of operation. Results indicated a significant reduction in carbon deposits, with mass decreasing from 680 mg to 260 mg and volume from 378 mm³ to 144 mm³, representing a reduction of over 61%. These findings highlight that the integration of biogasoline and Water Injection not only reduces carbon deposit formation but also extends engine lifespan and supports environmentally friendly transportation technologies.
Evaluasi Eksperimental Aftermarket Catalytic Converter Berbahan Stainless Steel terhadap Emisi CO dan HC pada Honda Beat FI (KZL) 2014 Nasution, M. Fatih Meutuah; Fernandez, Donny; Sugiarto, Toto; Hidayat, Nuzul
JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia Vol. 4 No. 2 (2026): JTPVI: Jurnal Teknologi dan Pendidikan Vokasi Indonesia
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtpvi.v4i2.398

Abstract

Penelitian ini bertujuan mengevaluasi pengaruh pemasangan catalytic converter aftermarket berbahan stainless steel (Brand KR 49 Racing, diameter 50 mm) terhadap kadar emisi gas buang karbon monoksida (CO) dan hidrokarbon (HC) pada sepeda motor Honda Beat FI seri KZL tahun 2014. Metode yang digunakan adalah eksperimen dengan dua kondisi pengujian, yaitu knalpot standar tanpa catalytic converter dan knalpot dengan catalytic converter, pada tiga variasi putaran mesin (1600, 2500, dan 6000 rpm) dengan tiga kali pengulangan pada setiap kondisi. Emisi CO (%) dan HC (ppm) diukur menggunakan exhaust gas analyzer. Hasil menunjukkan bahwa pemasangan catalytic converter menurunkan rata-rata CO dari 5,16% menjadi 4,40% (1600 rpm), 0,93% menjadi 0,54% (2500 rpm), dan 0,51% menjadi 0,37% (6000 rpm). Rata-rata HC juga menurun dari 279 ppm menjadi 209 ppm (1600 rpm), 91 ppm menjadi 75 ppm (2500 rpm), dan 39 ppm menjadi 37 ppm (6000 rpm), dengan persentase penurunan rata-rata HC berturut-turut 25,08%, 17,58%, dan 5,12%. Temuan ini mengindikasikan bahwa catalytic converter berbahan stainless steel berpotensi menurunkan emisi CO dan HC pada konfigurasi pengujian yang digunakan. This study evaluates the effect of installing an aftermarket stainless-steel catalytic converter (Brand KR 49 Racing, 50 mm diameter) on carbon monoxide (CO) and hydrocarbon (HC) exhaust emissions of a 2014 Honda Beat FI KZL-series motorcycle. An experimental design was applied under two conditions: a standard exhaust without a catalytic converter and an exhaust equipped with the catalytic converter, tested at three engine speeds (1600, 2500, and 6000 rpm) with three repetitions per condition. CO (%) and HC (ppm) were measured using an exhaust gas analyzer. The results show that the catalytic converter reduced mean CO from 5.16% to 4.40% (1600 rpm), from 0.93% to 0.54% (2500 rpm), and from 0.51% to 0.37% (6000 rpm). Mean HC decreased from 279 ppm to 209 ppm (1600 rpm), from 91 ppm to 75 ppm (2500 rpm), and from 39 ppm to 37 ppm (6000 rpm), corresponding to mean HC reductions of 25.08%, 17.58%, and 5.12%, respectively. These findings indicate that a stainless-steel catalytic converter can reduce CO and HC emissions under the tested conditions.
Co-Authors Ade Irma Suryani Adnan, Anggi Nur Ahmad Arif Ahmad Juanda Al Adaby, Muhammad Apriansyah Ardi yanto Arianto, Rian Asnawi, Naupal Azwardi Baehaqi Baharudin, Agus Dani Saputra, Hendra Decoya, Ferres Dedi Setiawan Doni saputra Donny Fernandez Dony Novaliendry Dwi Aksa, Azezen Dwi Sudarno Putra Faisal Amri Firmansyah, M. Sadly Fuadi, Alyauma Gunawan, Akmal Gusti Marliani Hakim, Zaidan Ibnul Hanafi Ar Rasyid, Imam Hanapi Hasan Haris Abizar, Haris Hasan Maksum Hendra Dani Saputra Hendra Pratama, Diky Jumiati Karim, Muhamad Nazmi Koto, Rahmat Desman Lazuardi, Revalina Azzahra Leoparlin, Alfridho M. Yasep Setiawan Martias Martias Martias Miftahul Rizki Milana Milana Muhammad Fikri muhammad rizky, muhammad Muslim Muslim Muslim Muslim Nanda, Iffarial Nasution, M. Fatih Meutuah Nasyikin, Sustinawati Nizwardi Jalinus Norrahmiati Nuzul Hidayat, Nuzul Owen Sitorus, Mikhael Panji Pasaribu, Mora Pramadanta, Aqshal Pramulia, Rahul Purwanto, Wawan Rasid Annafi, Wahyu Ridwan Ridwan, Ridwan Rifdarmon Rifdarmon, Rifdarmon Romansyah Nusi Putra Roni Jayawinangun Sa'adah, Agis Amelia Saleh Hasibuan, Erwin Sihole, Yosua Partogi Siman, Siman Slatnusa, Yoga Aldon Sofi, Abdullah Subeki, Kevin Suhelmi, Qodri Sulaiman, Agung Taufiq, Ilham Tri Lestari Ulzan, Alfim Usri, Hafiz Viroza, Al-Thoriq WAGINO Wagino Wanda Afnison Widyarto, Yogi Yasep Setiawan, M Yogaprasta A Nugraha Zaharbaini, Fauzan Zapit, Dandi Wahyudi