Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Alami Journal (Alauddin Islamic Medical) Journal Journal of Integrated System
Carin, Carin
Unknown Affiliation
Education Engineering Health Professions Industrial & Manufacturing Engineering Medicine & Pharmacology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
A Structured Approach to Improve Production Process Performance in Operations of Coal Mining Business Carin, Carin; Sofjan, Keanu Nathaniel; Alden, Alden; Gilbert, Kingsley; Phangestu, Windy; Maheswari, Hesti
Journal of Integrated System Vol. 8 No. 2 (2025): Journal of Integrated System Vol. 8 No. 2 (December 2025)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jis.v8i2.11631

Abstract

In the coal mining industry, operational efficiency and production quality are critical to maintaining competitiveness and meeting growing energy demands. This study focuses on the implementation of quality tools to optimize cycle time within the coal production process, from extraction to final delivery to consumers. The tools utilized include flowchart, check sheet, fishbone diagram, Pareto chart, and control chart. The results showed that they are the most effective tools to solve the cycle time in coal mining industry and improve the quality of final products. A detailed workflow mapping revealed several critical bottlenecks contributing to inefficiencies, such as heavy rain, equipment breakdowns, loading delays, and inadequate interdepartmental coordination. Further root cause analysis using the Fishbone diagram identified key contributors from the environment, machinery, work methods, and management practices. The Pareto chart highlighted that a majority of delays were driven by a few dominant causes, consistent with the 80/20 principle, allowing the company to prioritize impactful improvement actions. The control chart, used to monitor cycle time, indicated the presence of special variations through out-of-control data points. These deviations signify the need for immediate investigation and corrective measures. As a result, the PDCA cycle is recommended as a sustainable improvement framework to address recurring inefficiencies and stabilize production performance. By integrating data-driven decision-making and continuous quality improvement, this study offers a strategic foundation for enhancing productivity and ensuring timely coal distribution, particularly for power generation and industrial sectors. The findings support a structured approach toquality management, contributing significantly to the resilience and sustainability of coal mining operations.
The Impact of Physical Activity on Premenstrual Syndrome in Female Students at the Faculty of Medicine, Tarumanagara University Carin, Carin; Wahyuni , Octavia Dwi
Alami Journal (Alauddin Islamic Medical) Journal Vol 10 No 1 (2026): JANUARY
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/alami.v10i1.61813

Abstract

Background: Premenstrual syndrome (PMS) is a common disorder among women of reproductive age that can disrupt daily activities and quality of life. Various factors, including physical activity, may influence the incidence and severity of PMS. However, limited studies focus on medical students, a group with high academic demands and potentially unbalanced physical activity. Objective: To analyze the relationship between physical activity level and the incidence and severity of PMS among female students of the Faculty of Medicine, Universitas Tarumanagara. Methods: This was an analytical observational study with a cross-sectional design conducted at the Faculty of Medicine, Universitas Tarumanagara, from December 2024 to February 2025. A total sampling approach was used, involving 233 female students; after exclusions, 226 respondents (aged 17–24 years) were included. Data on physical activity (IPAQ) and PMS symptoms (SPAF) were collected via questionnaires and analyzed using the chi-square test. Results: Most respondents reported engaging in light physical activity (71.2%). PMS was more frequent and severe among those with light activity (21.7% severe PMS) compared to moderate (14.0% severe) and heavy activity (4.5% severe, majority asymptomatic). Statistical analysis showed a significant relationship between physical activity level and PMS incidence and severity (p=0.004). Conclusion: Higher levels of physical activity (moderate to heavy) are associated with a reduced risk and severity of PMS symptoms among female medical students. Routine physical activity is recommended to support reproductive health.
Co-Authors Alden, Alden Gilbert, Kingsley Hesti Maheswari Phangestu, Windy Sofjan, Keanu Nathaniel Wahyuni , Octavia Dwi