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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin OPSI JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) Journal Industrial Servicess Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri Jurnal Agrotek UMMat Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Jurnal Manajemen Jurnal Abdi Insani BERDAYA: Jurnal Pendidikan dan Pengabdian Kepada Masyarakat Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Mesin Nusantara International Journal Software Engineering and Computer Science (IJSECS) Jurnal Karya Pengabdian Teknik Mesin BULLET : Jurnal Multidisiplin Ilmu Jurnal Umum Pengabdian Masyarakat (JUPEMAS) Protech Biosystems Journal Energy, Materials and Product Design
Maharsa Pradityatama
Universitas Mataram
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation

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Tingkat Risiko dan Keluhan Musculoskeletal Disorders (MSDs) pada Pengguna Jasa Perahu Wisata Tradisional Maharsa Pradityatama; I Made Suartika; Hilda Fatihah
Jurnal PASTI (Penelitian dan Aplikasi Sistem dan Teknik Industri) Vol. 20 No. 1 (2026): Jurnal PASTI
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/pasti.2026.v20i1.003

Abstract

Tourism represents a key sector contributing to economic growth, employment generation, and poverty reduction. In marine tourism, traditional tourist boats function as primary transportation; however, their seating design is often not ergonomically optimized, potentially leading to musculoskeletal discomfort among users. This study aims to evaluate the prevalence and distribution of musculoskeletal complaints associated with seating on traditional tourist boats using the Nordic Body Map (NBM) instrument. Data were collected from 30 Indonesian respondents aged 17–45 years. The findings reveal that the highest prevalence of discomfort occurred in the buttocks (90%) and lower back (83%), whereas the lowest prevalence was observed in the right ankle (29%) and right calf (30%). The mean discomfort score was 60, which falls within the moderate risk category (range 50–70), indicating the necessity for ergonomic intervention. These findings highlight the importance of redesigning seating facilities on traditional tourist boats to improve user comfort and mitigate the risk of musculoskeletal disorders.
Development of Anthropometrics Database for Ages 19-21 in West Nusa Tenggara: Optimizing Secondary Data for Industrial Product Design Fikrihadi Kurnia; Maharsa Pradityatama; Akbar Tawaqqal
JTI: Jurnal Teknik Industri Vol 11 No 1 (2025): JUNI 2025
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v11i1.35468

Abstract

This study aims to develop an anthropometric database for individuals aged 19-21 in West Nusa Tenggara (NTB) Province to support ergonomic product design tailored to local physiological needs. A descriptive quantitative approach was employed, involving direct measurements of body dimensions in a sitting posture from 52 samples selected via purposive sampling. Key measurements included sitting height, eye level while seated, shoulder height, popliteal length, and other relevant dimensions, analyzed for normality, sufficiency, and consistency. The data followed a normal distribution with sufficient sample validity. Percentile values (P1, P5, P50, P95, P99) revealed significant variations in body dimensions, providing a robust reference for ergonomic design across sectors like creative industries, education, healthcare, and agriculture. The anthropometric database enables designing inclusive, comfortable, and safe products that accommodate various body sizes, enhancing user experience and efficiency in NTB’s key industries. The study is limited to NTB’s 19-21 age group and seated posture measurements, restricting its applicability to Indonesia’s broader population or other postures. Future research should expand geographic scope and include diverse postures to enrich national anthropometric data. Keywords: Anthropometry, Ergonomic Design, Seated Posture, Percentiles, West Nusa Tenggara.  
Utilization of Pumpkin seed waste extract as an inhibitor in reducing the corrosion rate on metals Syarif Hidayatullah; Nasmi Herlina Sari; Ahmad Akromul Huda; Maharsa Pradityatama; Sinarep Sinarep; suteja suteja
Protech Biosystems Journal Vol 5, No 1 (2025): Protech Biosystem Journal
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/protech.v5i1.32116

Abstract

Our research focuses on enhancing the potential of pumpkin seed waste extract as a sustainable corrosion inhibitor for metal (Fe) in 1 M HCl solution. Phytochemical screening and antioxidant activity were identified. Various investigative methodologies including experimental techniques such as Potentiodynamic Polarization (PDP) were used to evaluate the effectiveness of these pumpkin seed waste extract inhibitors in inhibiting corrosion. Electrochemical results showed that the effectiveness of the inhibitor was concentration dependent here reaching 83.11% at 3000 g/L pumpkin seed waste extract inhibitor. The PDP showed that the mixed inhibition control effectively retarded the corrosion of the metal. Furthermore, the adsorption behavior of the pumpkin seed waste extract inhibitor onto the metal follows the Langmuir isotherm model with physisorption properties. The adsorption mechanism of the inhibitor on the metal surface successfully formed a protective film on the metal surface thereby reducing the corrosion rate.  
Edukasi Ergonomi Penggunaan Smartphone dan Gambaran Keluhan Muskuloskeletal Berdasarkan Penggunaan Kacamata Fikrihadi Kurnia; Anak Agung Alit Triadi; Maharsa Pradityatama; Yelli Fitri; Made Wijana
JURNAL KARYA PENGABDIAN TEKNIK MESIN Vol. 8 No. 1 (2026): April, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penggunaan smartphone yang intensif pada pekerja berpotensi menimbulkan keluhan muskuloskeletal akibat postur statis dan penerapan ergonomi yang kurang tepat. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk memberikan edukasi ergonomi penggunaan smartphone sekaligus menggambarkan pola keluhan muskuloskeletal pada pekerja berdasarkan penggunaan kacamata. Kegiatan dilaksanakan pada 39 pekerja melalui penyuluhan ergonomi dan pengisian kuesioner keluhan muskuloskeletal. Analisis data dilakukan secara deskriptif, disertai uji Chi-Square sebagai analisis tambahan. Hasil menunjukkan bahwa keluhan paling banyak ditemukan pada segmen leher, bahu, dan punggung. Berdasarkan penggunaan kacamata, perbedaan distribusi keluhan hanya ditemukan pada segmen lengan. Kegiatan ini menegaskan pentingnya edukasi ergonomi untuk mencegah keluhan muskuloskeletal pada pekerja pengguna smartphone.
Penerapan Kelengkapan Keselamatan dan Kesehatan Kerja (K3) Pada UMKM Konstruksi Logam Anak Agung Alit Triadi; Nur Kaliwantoro; I Gede Bawa Susana; Maharsa Pradityatama; Akbar Tawaqqal; Lalu Marvin Apriyadi; Muhammad Alkaff
JURNAL KARYA PENGABDIAN TEKNIK MESIN Vol. 8 No. 1 (2026): April, Jurnal Karya Pengabdian
Publisher : Jurusan Teknik Mesin FT Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jkp.v8i1.239

Abstract

Occupational Safety and Health (OSH) implementation in small and medium metal construction enterprises is often neglected, particularly regarding non-ergonomic working postures and the low use of personal protective equipment (PPE). These conditions increase the risk of work-related fatigue, occupational diseases, and workplace accidents. This community service program aimed to improve workers’ knowledge and behavior toward healthy work concepts and PPE utilization in a metal construction MSME through counseling and hands-on demonstrations. The activity was carried out in one day at the partner’s workshop, involving all workers and the business owner. The program adopted a counseling and implementation-oriented training design, using a five-item pre-test and post-test questionnaire on healthy work concepts, OSH, and PPE use. The results indicate a substantial improvement in OSH knowledge and behavior. The average percentage of “yes” responses increased from approximately 16% at pre-test to about 92% at post-test; PPE use rose from 40% to 100%, and workers who reported always using PPE increased from 20% to 80%. The partner also began to understand and apply basic ergonomic principles in working posture and workstation arrangement. It can be concluded that the dissemination and demonstration of healthy work concepts and PPE use effectively enhanced OSH awareness and behavior among workers in the metal construction MSME, thus supporting business continuity through a safer, more comfortable, and more productive work environment.
Characteristics of Holocellulose Isolated from Waru Bark Fibers as Biopackaging Materials Suteja Suteja; Syarif Hidayatullah; Nasmi Herlina Sari; Maharsa Pradityatama
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 19 No. 2 (2025): SINTEK JURNAL
Publisher : Faculty of Engineering, Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.19.2.132-143

Abstract

Holocellulose isolated from waru bark fiber (HCT) holds significant potential as a sustainable material for packaging applications in the food, pharmaceutical, and agricultural industries. Understanding its characteristics is crucial for optimizing chemical and mechanical treatments to enhance performance. This study isolated holocellulose from waru bark fibers via sequential hydrothermal alkaline (5% NaOH) and acid-bleaching (NaClO₂-CH₃COOH) treatments at 60°C. The raw fibers (RW-HCT) and treated holocellulose (TR-HCT) were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). FTIR analysis confirmed the effective removal of lignin and hemicellulose components in TR-HCT, evidenced by the disappearance of peaks at 1735.29 cm⁻¹ (C=O stretching) and 1327.68 cm⁻¹ (C–O in lignin). XRD results showed that the crystallinity index increased from 62.29% ± 3.47 (RW-HCT) to 77.41% ± 5.26 (TR-HCT). SEM micrographs revealed a rougher, cleaner fiber surface in TR-HCT due to the removal of non-cellulosic impurities. TGA demonstrated improved thermal stability of TR-HCT, with a higher residual mass (1.01%) compared to RW-HCT (−6.43%). The findings indicate that holocellulose from waru bark fibers is a promising, eco-friendly reinforcement material for developing biodegradable packaging composites.
Why Income Is Not Enough: Financial Literacy Drives Household Saving in Demak Efriyani Sumastuti; Maharsa Pradityatama
Jurnal Manajemen Vol. 30 No. 2 (2026): June-September 2026
Publisher : Fakultas Ekonomi dan Bisnis, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jm.v30i2.4041

Abstract

This study investigates why income is not sufficient to strengthen household saving by examining the roles of education, work, and financial literacy among rural households in Demak, Indonesia. The research addresses the relationships among education, work, income, financial literacy, and household saving, focusing on the behavioural mechanism that converts socio-economic conditions into saving outcomes. A cross-sectional household survey was conducted, and respondents were selected using purposive sampling. The data were examined using Partial Least Squares Structural Equation Modelling (PLS-SEM). The results show that household saving is mostly driven by financial literacy, while income does not directly translate into higher saving when capability pathways are considered. Education and work influence saving primarily through financial literacy, highlighting the importance of capability-building interventions. The study provides practical implications for designing financial education and rural saving programmes that prioritise financial literacy as a leverage point.
Exploring the Relationship Between Coordinated Political Communication Activities and Public Sentiment on Platform X Through an Integrated Data Analytics Framework During the First 100 Days of the Prabowo Administration Fransiskus Risky Gawahi; Cinta Mugia Wening Galih; Hilda Fatihah; Maharsa Pradityatama
International Journal Software Engineering and Computer Science (IJSECS) Vol. 6 No. 2 (2026): AUGUST 2026
Publisher : Lembaga Komunitas Informasi Teknologi Aceh (KITA), Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijsecs.v6i2.7524

Abstract

The rapid growth of social media has transformed political communication patterns in Indonesia, particularly on platform X, which has become an important medium for public opinion formation and digital political discourse. This study aims to examine the relationship between coordinated account activities and public sentiment regarding the performance of President Prabowo Subianto’s government during the first 100 working days of his administration. A quantitative data analytics approach was employed using 10,000 public posts collected from platform X between October 20, 2024, and January 29, 2025. The study combined text mining, sentiment analysis, social network analysis, and statistical analysis to identify dominant narratives, sentiment distribution, coordinated account activity patterns, and their relationship with public sentiment. The results showed that the dominant narratives focused on the Free Nutritious Meal Program, public satisfaction, and corruption eradication. Sentiment analysis indicated that 62% of the posts were classified as positive, while social network analysis identified centralized interaction patterns among accounts classified as political buzzers. Statistical analysis showed a significant positive relationship between buzzer activity and positive sentiment, with a Pearson correlation coefficient of 0.78 (p < 0.01). Linear regression analysis further indicated that posting frequency, hashtag quantity, and retweet counts collectively explained 65% of the variation in positive public sentiment. These findings indicate that coordinated communication activities were associated with the concentration of positive narratives and higher engagement levels on platform X. This study contributes to research on digital political communication and data analytics by combining text mining, sentiment analysis, social network analysis, and statistical modeling to examine coordinated political communication activities. The findings also indicate the need for stronger digital literacy and monitoring approaches to identify coordinated digital propaganda activities on social media.
Optimalisasi Sosialisasi SNPMB Berbasis Digital untuk Meningkatkan Minat Siswa SMA terhadap Teknik Industri Universitas Mataram Leni Agustina; Laeli Nurrahmah; Meysarah Na’ilah; Moamar Rahman; Maharsa Pradityatama; Dwi Komala Sari; Gelsy Falisha Abdia; Muhammad Galang Putra Prayitno; Ni Made Putri Candrawati; Yelli Fitri
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 7 No. 2 (2026): Edisi Mei - Agustus
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v7i2.8834

Abstract

Pengabdian ini dilatarbelakangi oleh rendahnya pemahaman siswa SMA terhadap jalur SNPMB serta kurang optimalnya strategi promosi Program Studi Teknik Industri Universitas Mataram. Tujuan kegiatan ini adalah meningkatkan minat siswa melalui optimalisasi sosialisasi berbasis ceramah dan media digital. Metode yang digunakan adalah pendekatan deskriptif dengan desain pre-test dan post-test terhadap siswa kelas XII di 13 SMA di Provinsi Nusa Tenggara Barat. Kegiatan meliputi penyampaian materi SNPMB, pemutaran video promosi, serta penyebaran konten Instagram Story sebagai media informasi lanjutan. Hasil menunjukkan adanya peningkatan minat siswa sebesar ±25-40% berdasarkan hasil evaluasi kuesioner sebelum dan sesudah kegiatan. Selain itu, terjadi peningkatan pemahaman terhadap jalur SNPMB dan ketertarikan terhadap Program Studi Teknik Industri. Kebaruan kegiatan ini terletak pada integrasi pendekatan sosialisasi konvensional dengan strategi promosi digital berbasis media sosial yang dievaluasi secara kuantitatif. Kegiatan ini berkontribusi dalam menghasilkan model sosialisasi yang lebih efektif, adaptif, dan berbasis data dalam meningkatkan minat calon mahasiswa.
Co-Authors A.A. Ngurah Nara Kusuma Ahmad Akromul Huda Akbar Tawaqqal Anak Agung Alit Triadi Anak Agung Alit Triadi Anna Apriana Hidayanti Apriana Hidayanti, Anna Aruan, Jerry Chaedar, Muhammad Cinta Mugia Wening Galih Dwi Komala Sari Efriyani Sumastuti Emmy dyah S Emmy Dyah Sulistyowati, Emmy Dyah Fauzan Fahrussiam Febrian, Ade Fikrihadi Kurnia Fikrihadi Kurnia Fikrihadi Kurnia Fransiskus Risky Gawahi Gelsy Falisha Abdia Gunartha, I Gusti Made Bagus Sri Hilda Fatihah Hilda Fatihah I G.B. Budi Dharma I Gede Bawa Susana I Gusti Made Bagus Sri Gunartha I Gusti Made Bagus Sri Gunartha I Gusti Ngurah Agung Natria Patraman I Gusti Ngurah Agung Natria Patraman I Made Nuarsa I Made Nuarsa, I Made I Made Suartika I Putu Bayu Pramartha I Putu Bayu Pramartha I.D.K. Okariawan Ida Bagus Alit Kurnia, Fikrihadi Kurnia, Fikrihadi Laeli Nurrahmah Lalu Marvin Apriyadi Leni Agustina Leni Agustina Made Wijana Made Wijana, Made Made Wirawan Mardiah, Rabiatun Meysarah Na’ilah Moamar Rahman Muhammad Alkaff Muhammad Galang Putra Prayitno Nasmi Herlina Sari Na’ilah, Meysarah Ni Made Putri Candrawati Nugroho, Dony Satriyo Nur Arfian Nur Kaliwantoro Nurrahmah, Laeli Okariawan, I Dewa Ketut Patraman, I Gusti Ngurah Agung Natria Pramartha, I Putu Bayu Pramudi Arsiwi Rahman, Moamar Ridoni Saoloan Purba Rudy Sutanto Sinarep Sinarep Suartika, I Made Surya, Muhammad Dianku Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja Suteja, Suteja Syarif Hidayatullah Syarif Hidayatullah Syariful Wardana Tegas Satriadi Tita Talitha Triadi, Anak Agung Alit Triadi, Anak Agung Alit Wahyudinil Islam Wijana, Made Yelli Fitri Yusril Ilhamdani Zico Fatahillah Prastomo