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Formosa Journal of Science and Technology (FJST)
Published by PT FORMOSA CENDEKIA GLOBAL
ISSN : -     EISSN : 29646804     DOI : https://doi.org/10.55927/fjst.v1i2
Core Subject : Humanities, Science, Education, Social, Engineering,
Humanities Computer Science & IT Education Industrial & Manufacturing Engineering Social Sciences
Formosa Journal of Science and Technology (FJST) is an open-access scientific journal that publishing full-length research papers and review articles covering subjects that fall under the wide spectrum of science and technology. FJST journal is dedicated towards dissemination of knowledge related to the advancement in science and technology. The prestigious interdisciplinary editorial board reflects the diversity of subjects covered in this journal. Under the realm of science and technology, the coverage includes environmental science, pure and applied mathematics, agricultural research and engineering, biology, biotechnology, bioinformatics, management science, business and economics, Healthcare sciences (including clinical medicine, preventive medicine & public health), physics, biophysics, computer science, chemistry and bioengineering, to name a few. Formosa Journal of Science and Technology is published by Formosa Publisher. The journal now brings out monthly publications. It supports the open access policy for making scientific research accessible to one and all.
Arjuna Subject : Umum - Umum
Articles 896 Documents
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A Comparative Study of Materials in the Design of Concrete and Asphalt Road Pavements in Terms of Cost and Time (Case Study of the Sumberwudi-Maduran Road Section, Lamongan Regency, East Java Province) Johan Sanjoko; Andi Patriadi; Retno Hastijanti
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.370

Abstract

This research is highly urgent in bridging the knowledge gap between standard theory, field practice, and the dynamics of current industrial area development. The construction and periodic maintenance budget for asphalt road pavement with a duration of 20 years requires a cost of Rp. 17,638,200,000.00, then the construction and periodic maintenance budget for asphalt road pavement with a duration of 40 years requires a cost of Rp. 52,225,100,000.00. The construction and periodic maintenance budget for 20-year UR concrete road pavement requires a cost of Rp. 9,063,000,000.00, then the construction and periodic maintenance budget for 40-year UR concrete road pavement requires a cost of Rp. 15,031,400,000.00.
The Influence of Job Resources on Work Engagement Mediated by Psychological Capital I Wayan Surnantaka; Ida Bagus Ketut Surya; I Gede Riana; Ayu Desi Indrawati
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.368

Abstract

The low quality of public services remains a challenge in bureaucratic reform in Indonesia, related to low employee work engagement. This study examines ASN and P3K employees at the Badung Samsat Office, focusing on the influence of job resources on work engagement and psychological capital, as well as the mediating role of psychological capital. A quantitative survey with PLS-SEM analysis was employed. The results indicate that job resources have a positive and significant effect on both work engagement and psychological capital. Psychological capital also positively affects work engagement and partially mediates the relationship. These findings strengthen the Job Demands–Resources (JD-R) model and provide practical implications for improving public service quality through the development of job resources and employee psychological capital.
Patient Perceptions of Digital Fatigue in the Use of Telemedicine During Routine Chronic Care Hardin Hardin; Aliah Bagus Purwakania Hasan; Imran Yaman
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.367

Abstract

This study examines the phenomenon of digital fatigue in the use of telemedicine for routine care of patients with chronic diseases. Using a phenomenological qualitative approach, the research involved 12 informants, consisting of 10 long-term telemedicine users and 2 healthcare workers as triangulation informants. Data were analyzed using interpretative phenomenological analysis. The results indicate that digital fatigue is triggered by high frequency of telemedicine use, cognitive demands during virtual consultations, limited emotional interaction, and repeated technical obstacles. Its effects include decreased motivation, digital process saturation, and a tendency to delay consultations, although telemedicine is still considered beneficial in terms of accessibility. This study highlights that digital fatigue is a significant issue affecting the effectiveness and sustainability of telemedicine services, emphasizing the need for more human-centered, flexible, and supportive service designs in long-term chronic care.
Decision-Making Dynamics of Engineers in Selecting Environmentally Friendly Materials for Medium-Scale Construction Projects Sahrullah Sahrullah
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.366

Abstract

This study examines the decision-making dynamics behind the selection of environmentally friendly materials in medium-scale construction projects in Balikpapan, East Kalimantan. Using a qualitative case study approach, in-depth interviews were conducted with eight key informants, including engineers, project managers, and a quantity surveyor. Thematic analysis reveals that material selection decisions are shaped by dynamic negotiations among technical performance, cost efficiency, schedule constraints, and risk perceptions, with project managers and quantity surveyors playing decisive roles. The study highlights that in medium-scale projects, the adoption of environmentally friendly materials depends more on cross-role decision-making mechanisms than on individual environmental awareness. These findings contribute to practical insights on sustainable material selection and provide an empirical basis for developing more contextual green construction strategies at the project level.
In-depth Analysis of Operator Experiences in Optimizing Main Engine Cooling Systems Based on On-site Operational Insights Pierre Marcello Lopulalan; Hendi Prasetyo; ⁠Surnata ⁠Surnata; Rahmat Santoso
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.365

Abstract

This study explores the role of operator experience in optimizing main engine cooling systems within large-capacity machinery industries. Using a qualitative case study approach in the heavy manufacturing sector in Banten Province, data were collected through in-depth interviews and on-site observations involving 12 informants, including engine operators, supervisors, and maintenance technicians. Thematic analysis reveals that operator experience is critical for early detection of thermal abnormalities, adaptive adjustment of operating parameters, and prevention of recurring system disturbances that are not fully addressed by standard procedures. The study concludes that systematically integrating operator insights into operation and maintenance management enhances cooling system optimization and offers practical contributions to operational strategies and field-based training in mechanical engineering.
Adaptive Performance Management Practices in Responding to Rapid Technological Change within Startup Companies Siti Mahmudah; Tri Siwi Agustina; Moch Aminudin Hadi
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.364

Abstract

This study examines how startups apply adaptive performance management practices to respond to rapid technological change. Using a qualitative case study approach, data were collected from three technology-based startups in East Java through in-depth interviews with 12 informants, supported by document analysis and limited observations. Thematic analysis reveals that adaptive performance management in startups is characterized by flexible goal setting, continuous feedback mechanisms, the use of digital platforms for performance evaluation, and direct leadership involvement in performance adjustments. The findings highlight the strategic role of adaptive performance management in enhancing organizational agility and human resource readiness amid technological change. This study contributes conceptually to human resource management literature within the startup context and offers practical insights for startup managers in designing responsive performance management systems.
The Role of Internal Governance in Managing Financial Risks Associated with Digital Transformation in Manufacturing Firms Karnawi Kamar; Abdul Khalik; Tyahya Whisnu Hendratni; Roni Adi
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.363

Abstract

This study examines the role of internal governance in mitigating financial risks during digital transformation in the manufacturing industry. Using a mixed-methods approach, quantitative data were collected through a survey of 40 manufacturing companies in Banten Province that have implemented digital initiatives, complemented by in-depth interviews with eight key informants. Quantitative analysis and thematic qualitative analysis reveal that effective internal control mechanisms, strong integration between audit and risk management functions, and consistent managerial supervision significantly reduce financial risk exposure during the digitalization process. The findings highlight internal governance as a critical factor in ensuring controlled digital transformation and enhancing financial sustainability. This study contributes theoretically to governance and digitalization literature and provides practical insights for risk control strategies and technology investment policies in the manufacturing sector.
Artificial Intelligence Integration in Forensic Accounting for Detecting Financial Fraud in the Digital Economy Pilipus Ramandei; Kristanti Rahman; Dharma Widada
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.361

Abstract

This study examines the effectiveness of artificial intelligence in forensic accounting for detecting financial fraud within the digital economy. Using a quantitative machine learning approach, the research analyzes 2,314 anonymized digital transaction records from a digital-based Savings and Loan Cooperative in Central Java. Transaction data extracted from accounting information systems were cleaned and analyzed using random forest, logistic regression, and support vector machine algorithms. The results show that AI integration improves fraud detection accuracy up to 91.8%, with transaction frequency, late payments, and loan application patterns identified as key anomaly indicators. The study concludes that AI-based forensic accounting strengthens internal control systems and contributes theoretically through replicable machine learning fraud detection models, while offering practical implications for forensic auditors and modern financial governance policies.
The Role of Ultrasonic Generators as Killers Gram + and Gram – Bacteria I Ketut Putra; I Made Satriya Wibawa; I Ketut Sukarasa
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.360

Abstract

It has created an ultrasonic generator as a destroyer of E.Coli bacteria.The range of frequency that produced by this ultrasonic generator is around 40 kHz up to 50 kHz. From the observation of death of E.Coli bacteria which is impacted by the ultrasonic wave radiation to the frequency variant used at the closed rank of 10-8 cfu/ml ( coloni forming unit / ml ) has obtained that the percentage of E.Coli bacteria death everage is increasing as well as the increasing frequency had been used. At the frequency of 40 kHz able to destroy E.Coli bacteria at the amount of 9,3 %, at the frequency of 42 kHz able to destroy at the amount of 14,1 %, at the frequency of 45 kHz able to destroy at the amount of 26,1 %, at the frequency of 48 kHz able to destroy at the amount 29,7 % and at the frequency of 50 kHz able to destroy at the amount of 38,8 %.By checking the result ot colouring gram of bacteria, we found that the cell of E.Coli bacteria has changed after we doing a radiation to that bacteria by using ultrasonic wave , such as ; the shape of bacteria is getting smaller, partition of the cell is cracked and lysis is occured on it.
Effectiveness of Botanical Insecticides from Virginia Tobacco Bark in Controlling Whiteflies and Increasing Potato Plant Productivity Srilah Nora Wahyuni; M. Taufik Fauzi; M. Sarjan
Formosa Journal of Science and Technology Vol. 5 No. 1 (2026): January 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i1.346

Abstract

This study evaluated the effectiveness of a botanical insecticide derived from Virginia tobacco (Nicotiana tabacum L.) bark in controlling whitefly (Bemisia tabaci) populations and infestation intensity, as well as its impact on potato (Solanum tuberosum L.) productivity. A completely randomized design was applied using six insecticide concentrations (0%, 2%, 4%, 6%, 8%, and 10%) on Tedjo MZ potato plants. The results showed a significant negative linear relationship between insecticide concentration and pest population (R² = 0.98) as well as infestation intensity (R² = 0.99). The highest pest population (3.92 individuals per plant) and infestation intensity (12.31%) occurred in the control treatment, while the lowest values (3.03 individuals per plant and 11.21%) were observed at the 10% concentration, achieving a population suppression effectiveness of 22.82%. A strong correlation between pest population and infestation intensity (R² = 0.98) indicated that each additional pest increased infestation intensity by 1.27%. Botanical insecticide application significantly improved yield, increasing tuber number by 66.67% and tuber weight by 82.93% at the 10% concentration, with very strong correlations (R² > 0.99). The insecticidal activity is attributed to nicotine alkaloids acting as neurotoxins and secondary phytochemicals with multiple toxic effects. These findings demonstrate the strong potential of tobacco-based botanical insecticides as a sustainable, environmentally friendly, and economically beneficial component of integrated pest management

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