https://ojs3.lppm-uis.org/index.php/JLIS/issue/feedJurnal Liga Ilmu Serantau2025-10-11T09:19:41+00:00LPPM UIS[email protected]Open Journal Systems<p style="text-align: justify;"><strong>Jurnal Liga Ilmu Serantau (JLIS)</strong> is a multidisciplinary scientific journal managed and published by the Research and Community Service Institute (LPPM) of Ibnu Sina University, with ISSN online 3047-1567, BRIN SK No. 30471567/II.7.4/SK.ISSN/04/2024 dated April 5, 2024. JLIS is published twice a year, in February and August.</p>https://ojs3.lppm-uis.org/index.php/JLIS/article/view/1111PENGARUH PENERAPAN TOTAL QUALITY MANAGEMENT TERHADAP KINERJA KARYAWAN DI SHOP AND DRIVE2025-10-11T09:19:41+00:00Syafaat Auladi Auladi[email protected]Elsa Rizki Damaiyanti[email protected]Tuwandi Juniarto[email protected]Nadia Eka Damayanti[email protected]<p><em>This study explores the impact of Total Quality Management (TQM), a management approach focused on continuous quality improvement involving all organizational components, on employee performance at Shop and Drive, an automotive service provider. In a highly competitive business environment, enhancing human resource quality is essential to maintain excellent service delivery. The research employs multiple linear regression analysis using data collected from Shop and Drive employees. The findings reveal that while the influence of TQM on performance is not entirely statistically significant, its consistent implementation contributes positively to work efficiency, customer satisfaction, and the company’s competitiveness. These insights offer valuable input for management in formulating sustainable service quality improvement strategies.</em></p>2025-08-16T22:38:24+00:00Copyright (c) 2025 Syafaat Auladi Auladi, Elsa Rizki Damaiyanti, Tuwandi Juniarto, Nadia Eka Damayantihttps://ojs3.lppm-uis.org/index.php/JLIS/article/view/1190EFISIENSI RANTAI PASOK DALAM INDUSTRI ROSTER BETON: PERBANDINGAN METODE ECONOMIC ORDER QUALITY DAN JUST-IN-TIME2025-10-11T09:19:28+00:00Khoerun Nisa Safitri[email protected]Asrul Fole[email protected]Nurul Aini[email protected]<p><em>This study aims to analyze supply chain efficiency in the concrete roster industry in Batam by comparing the Economic Order Quantity (EOQ) and Just-In-Time (JIT) methods with the conventional inventory approach. The main issue faced by the industry is the high total inventory cost due to suboptimal ordering frequency and significant storage expenses. The data used are actual production figures and raw material requirements throughout 2024. A quantitative approach was applied using EOQ and JIT calculations. The results show that the EOQ method generates an annual inventory cost of Rp7,595,000, which is significantly lower than that of the JIT method at Rp10,400,000 and the conventional method at Rp145,650,000. EOQ proves to be more efficient by optimizing order quantities and minimizing storage costs. In contrast, the JIT method effectively eliminates storage costs but increases ordering costs due to more frequent orders. This study recommends adopting the EOQ model as an efficient inventory management solution for medium-scale manufacturing industries. The findings are expected to serve as a reference for strategic decision-making in logistics and supply chain management</em><em>. </em></p>2025-08-16T22:40:45+00:00Copyright (c) 2025 Khoerun Nisa Safitri, Asrul Fole, Nurul Ainihttps://ojs3.lppm-uis.org/index.php/JLIS/article/view/1238IMPLEMENTASI SISTEM PAKAR DALAM MENDIAGNOSIS PENYAKIT PNEUMONIA PADA ANAK2025-10-11T09:19:13+00:00Yusli Yenni[email protected]Nini Khaerini[email protected]<p><em>Pneumonia is a disease with a high mortality rate in children. Pneumonia is an acute respiratory infection and is a disease that is often suffered by children and remains a high cause of child mortality in Indonesia. This occurs due to the still limited knowledge of parents and the lack of medical personnel and treatment facilities, especially in certain areas. This becomes a major point causing delays in disease treatment, resulting in death in children. This research aims to develop and implement a rule-based expert system. Knowledge can assist in the process of diagnosing pneumonia in children. This expert system knowledge is a system that can solve a problem by using the mindset of an expert implemented into the system. This system is built using the forward chaining method in diagnosing pneumonia. The forward chaining method is known as data-driven reasoning because this method searches starting from data or facts that are already known as input. It also searches for appropriate rules, then decisions can be made based on the rules that have been created. The interface implementation uses a web-based system using the PHP programming language and a MySQL database, which can be accessed by the public for consultation. It is hoped that this system will assist relevant parties, especially those with limited knowledge of pneumonia. It will also help medical professionals and the government reduce the child mortality rate due to this disease.</em></p>2025-08-16T22:49:59+00:00Copyright (c) 2025 Yusli Yenni, Nini Khaerinihttps://ojs3.lppm-uis.org/index.php/JLIS/article/view/1244DAMPAK INTERVENSI ERGONOMI TERHADAP KESEHATAN PEKERJA KANTORAN: TINJAUAN SISTEMATIS DENGAN FOKUS PADA INTERVENSI BERBASIS TEKNOLOGI DAN INTEGRASI KESEJAHTERAAN MENTAL2025-10-11T09:18:59+00:00Meylia Vivi Putri[email protected]Dwila Sempi Yusiani[email protected]<p><em>This study aims to provide a systematic review of the impact of ergonomic interventions on office workers' health, focusing on technology-based interventions and mental well-being. Office workers who spend long hours in front of computer screens are at high risk of developing musculoskeletal disorders, such as back pain, neck strain, and eye strain, as well as mental health issues such as stress and anxiety. While physical ergonomic interventions, such as adjusting chair, desk, and computer screen positions, have been proven effective in reducing physical complaints, this study also explores the use of advanced technologies such as wearable devices to monitor posture, break reminder apps, and virtual reality (VR) training. Furthermore, mental well-being programs that involve mindfulness and breathing relaxation techniques have been shown to reduce stress levels and improve workers' psychological well-being. The review results indicate that a combination of physical, technology-based, and mental well-being interventions has a significant impact on improving comfort, reducing physical strain, and enhancing mental health and productivity. Therefore, this study recommends that companies integrate these three aspects into their ergonomic policies to create a healthier and more productive work environment.</em></p>2025-08-16T22:51:48+00:00Copyright (c) 2025 Meylia Vivi Putri, Dwila Sempi Yusianihttps://ojs3.lppm-uis.org/index.php/JLIS/article/view/1245ANALISIS MANAJEMEN RANTAI PASOK PRODUK OTAK-OTAK PADA UMKM DI KIJANG2025-10-11T09:18:45+00:00Dwila Sempi Yusiani[email protected]Meylia Vivi Putri[email protected]<p><em>Kijang, located in Bintan Regency, Riau Islands Province, is known as one of the main production centers of otak-otak made from fresh marine fish, playing an important role in the local economy through small and medium enterprises (SMEs). Nevertheless, its supply chain faces various challenges, such as fluctuations in supply and prices of raw materials, limited processing technology, and dependence on traditional marketing methods. This study aims to analyze the influence of supply chain management on the business performance of otak-otak SMEs in Kijang. The method used is descriptive qualitative, with data collected through structured interviews, direct observation, questionnaires, and literature review. The results show that the supply chain consists of fresh fish procurement from local fishermen, semi-traditional production processes, distribution through direct sales or retailers, and marketing via offline outlets and limited online platforms. The main problems include price increases during the off-season, inconsistent product quality, and suboptimal use of digital marketing. However, there are development opportunities through supplier diversification, modernization of production equipment, implementation of standardized quality control procedures, and integration of digital marketing systems. These strategies are expected to improve operational efficiency, maintain product quality, expand market reach, and strengthen competitiveness in both local and regional markets</em></p>2025-08-16T22:53:54+00:00Copyright (c) 2025 Dwila Sempi Yusiani, Meylia Vivi Putrihttps://ojs3.lppm-uis.org/index.php/JLIS/article/view/1233ANALISIS APLIKASI OUTLOOK EXPRESS TERHADAP INFORMASI KERJA DI PT TANJUNG HARAPAN SENTRANUSA2025-10-11T09:18:31+00:00Alex Darmansyah[email protected]Weni Putri[email protected]Nanda Jarti[email protected]<p>Outlook Express Aplication is an application that serves to convey work information in the form of electronic mail or e-mail whether it be text, pictures and video. The purpose of the study was to find out: use outlook, To find work, and the influence of outlook express to employee information PT Tanjung Harapan. Theoretically usefulness is to determine how much information the employee in the use of Outlook Express, while the practical usefulness is expected that all parties can determine the effect resulting from Outlook Express so that employees can take advantage of the best in the business information. The study was conducted in PT Tanjung Harapan, Jl. Sekupang Industrial Estate, Batam, Indonesia. The research method used is a quantitative research method is descriptive and associative by using simple regression</p>2025-08-19T00:00:00+00:00Copyright (c) 2025 Alex Darmansyah, Weni Putri, Nanda Jartihttps://ojs3.lppm-uis.org/index.php/JLIS/article/view/1248PENGGUNAAN MEDIA PEMBELAJARAN BASIC TRAINER ELECRONICS UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA MATA PELAJARAN DASAR-DASAR KEJURUAN KELAS XMK TDK SMK NEGERI 1 BATAM2025-10-11T09:18:16+00:00Nelma Busra[email protected]Jaenuddin Jaenuddin[email protected]<p>The changes in the curriculum at <em>Center of Excellence</em> schools have resulted in several adjustments to productive subject learning, particularly in lesson hours and subject distribution. With the merging of several subjects into a single subject, namely <em>Basic Vocational Studies</em>, the available time has been further reduced, which in turn causes students to require a relatively longer time to understand the material. Furthermore, with Physics being merged into the <em>IPAS</em> subject—which focuses more on natural, social, and economic sciences—students’ needs related to vocational or engineering fundamentals have yet to be fully met. Learning media is a tool used in the teaching and learning process that stimulates students’ interest, thinking, and attention so that learning objectives can be achieved. The use of learning media also serves to enhance the effectiveness of the learning process, making it more efficient despite the limited time available. This study aims to determine the extent to which students’ learning outcomes improve after the implementation of the <em>Basic Trainer Electronics</em> learning media in <em>Basic Vocational Studies</em>. This classroom action research was conducted in two cycles. In Cycle I, out of 20 students, only 3 students reached the <em>Minimum Mastery Criteria</em> (KKM), or only 15% achieved mastery, with an average score of 55.6. In Cycle II, the number of students achieving mastery increased to 20 out of 20 students, or 100%, with the average score increasing to 78.3. The results show a comparison between Cycle I and Cycle II: in Cycle I, the average score was 55.6 with a mastery percentage of 15%, while in Cycle II, the average score increased to 78.3 and the mastery percentage rose to 100%. Based on the KKM score of 75, the improvement in Cycle II was 85%.</p> <p>From the results of this study, it can be concluded that the use of <em>Basic Trainer Electronics</em> learning media can improve the learning outcomes of XMK TDK students in the <em>Basic Vocational Studies</em> subject. The use of <em>Basic Trainer Electronics</em> learning media can be considered for future research, especially in productive subjects.</p>2025-08-20T00:00:00+00:00Copyright (c) 2025 Nelma Busra, Jaenuddin