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Aam Gunawan
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AL-ULUM: JURNAL SAINS DAN TEKNOLOGI
Published by Universitas Islam Kalimantan Muhammad Arsyad Al Banjari
ISSN : -     EISSN : 24774731     DOI : 10.31602
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Energy
Al Ulum: Jurnal Sains dan Teknologi = Al Ulum: Journal of Science and Technology (JST) is an international and open access journal with registered number ISSN 2477-4731 (Online). JST is a peer-reviewed journal published three times a year (April, August and December) by UPT Publication and Journal Management, Islamic University of Kalimantan. JST is intended to be the journal for publishing articles reporting the results of science and technology research. The JST invites manuscripts in the various topics of science and technology include natural sciences, engineering, computer science and technology, health and medical sciences, and agriculture.
Arjuna Subject : Umum - Umum
Articles 235 Documents
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CHARACTERIZATION OF BIODEGRADABLE FOAM FROM OIL PALM EMPTY FRUIT BUNCH CELLULOSE, CASSAVA STARCH, AND POLYVINYL ALCOHOL Idha Silviyati; Aisyah Suci Ningsih; Desti Lidya; Endang Supraptiah; Sri Murda Niati; Bimo Satrio
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 12, No 1 (2026)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v12i1.22977

Abstract

Styrofoam is widely used for food packaging, but its poor degradability and harmful compounds pose serious environmental and health concerns. This study developed biodegradable foam from oil palm empty fruit bunch (OPEFB) cellulose and cassava starch through thermopressing, with polyvinyl alcohol (PVA) added to improve product performance. The formulations varied in cassava starch-to- OPEFB cellulose ratios (1:1, 2:1, 3:1, and 4:1) and PVA concentrations (0%, 5%, and 10%). Results showed that increasing the starch ratio and PVA concentration significantly affected water absorption, tensile strength, thickness, and biodegradation rate. The optimum formulation was obtained at a 4:1 starch-to-cellulose ratio with 10% PVA, yielding water absorption of 10.04%, tensile strength of 2.362 MPa, thickness of 0.114 mm, and complete biodegradation within 48.16 days. All biofoam characteristics complied with SNI 7188.7:2016 and JIS Z1707:2017 standards.
DESIGN AND USABILITY EVALUATION OF A MOBILE TOURISM APPLICATION BASED ON USER-CENTERED DESIGN APPROACH Ricco Herdiyan Saputra; Mezan El-Khaeri Kesuma
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 12, No 1 (2026)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v12i1.22788

Abstract

Mobile tourism applications play a crucial role in supporting travelers’ information search and trip planning; however, many existing systems still suffer from usability limitations that affect user satisfaction and continued use. This study aims to design and evaluate a mobile tourism application prototype using a user-centered design (UCD) framework combined with the System Usability Scale (SUS) for quantitative validation. The development process involved user needs identification, iterative prototyping, and structured usability testing with 20 participants aged 18–35 years. The evaluation results yielded a mean SUS score of 82.5 (SD = 6.8), categorizing the prototype within the “Excellent” usability level. All participants successfully completed the assigned tasks, indicating strong learnability and interaction clarity. These findings demonstrate that integrating UCD with standardized usability benchmarking provides measurable evidence for improving mobile tourism interface quality and supports early-stage validation prior to full-scale implementation.
Front Matter Al Ulum: Journal of Science and Technology Vol. 12, No. 1, April 2026 Front Matter
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 12, No 1 (2026)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

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

Abstract

VALIDATION OF QUALITY OF LIFE AND STIGMA QUESTIONNAIRES IN POST-TB BANJAR POPULATION Juwita Ramadhani; Dyah Aryani Perwitasari; Haafizah Dania
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 12, No 1 (2026)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v12i1.22841

Abstract

Tuberculosis (TB) remains a major public health problem with persistent consequences beyond microbiological cure. Post-TB individuals frequently experience impaired health-related quality of life and social stigma influenced by sociocultural context. Among the Ethnic Banjar population in Indonesia, culturally validated instruments for assessing these outcomes remain limited. This study aimed to evaluate the validity and reliability of the HRQ-6D and Van Rie TB Stigma Scale for post-TB populations of Ethnic Banjar. A cross-sectional psychometric study was conducted among 134 respondents (67 post-TB patients and 67 community members). Construct validity was assessed using item–total correlations, Kaiser–Meyer–Olkin (KMO), and Bartlett’s test of sphericity. Internal consistency was evaluated using Cronbach’s alpha. All HRQ-6D items were valid (r=0.284–0.832; α=0.935). The stigma scale demonstrated acceptable validity, except one item, with strong reliability (α=0.927 patients; 0.843 community). Both instruments are valid and reliable for assessing HRQoL and stigma in post-TB Ethnic Banjar populations.
ANTITUBERCULOSIS POTENTIAL OF Caesalpinia sappan BIOACTIVE COMPOUNDS USING IN SILICO APPROACH Arafah Nurfadillah; Julianti Bunga; Nur Indah Dg Toba; A Irham Asdar
AL ULUM: JURNAL SAINS DAN TEKNOLOGI Vol 12, No 1 (2026)
Publisher : UPT Publication and Journal Management, Islamic University of Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/jst.v12i1.20183

Abstract

Caesalpinia sappan has been reported to possess a plethora of pharmacological effects, including immunomodulatory, antibacterial, astringent, and antitumor properties. The present study set out to ascertain the benefits of the active compounds Caesalpinia sappan in terms of their ability to inhibit the action of the Arabinosyltransferase C enzyme in M. tuberculosis. This research was conducted using an in-silico approach with the following applications: PyMOL, PyRx, AutoDock 4, Biovia Discovery Studio, and Toxtree. The results demonstrated that among the 25 test compounds, gallic acid exhibited the highest Pa value. The gallic acid compound has been found to have the lowest ∆G free bond energy (-7.0 kcal/mol), which is lower than the native ligand and has more hydrogen bonds than the ethambutol. Consequently, gallic acid compounds can impede the function of the Arabinosyl Transferase C receptor.

Page 24 of 24 | Total Record : 235

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