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1	Biomedical Engineering	ABS-15
Redesigning the Grossing Station: A Biomedical Approach to Safer Formaldehyde Handling in Anatomical Pathology Meike Rachmawati, Wida Purbaningsih, Meta Maulida Damayanti, Iman Apriana Effendi, Faradilla Azzahra Dinariansyah, Fathin Azimati Nadila, Ismawati, Nugraha Nugraha, Aninditya Putri Anugrah, Fattahrani Fattahrani, Reyiena Kusumaryani Rahmat Universitas Islam Bandung Abstract Formalin, a widely used tissue fixative in anatomical pathology laboratories, poses significant health risks due to its formaldehyde content. This study aimed to develop a cost-effective, ergonomically designed grossing station equipped with an exhaust system to reduce formaldehyde exposure among laboratory personnel. A quasi-experimental design was employed to assess the effectiveness of various exhaust configurations. The prototype workstation was constructed using corrosion-resistant stainless steel and featured integrated ventilation with a total airflow capacity of 325 CFM. Formaldehyde exposure was measured using an air quality detector across three configurations: (1) no exhaust systems active, (2) room exhaust only, and (3) both room and grossing station exhausts active. Exposure levels were recorded at different times of the day and analyzed using TWA and STEL metrics, benchmarked against OSHA, NIOSH, and ACGIH standards. Results showed a significant reduction in formaldehyde concentration when both exhaust systems were active, with TWA and STEL values remaining below OSHA thresholds, though still exceeding the more stringent limits set by NIOSH and ACGIH. The findings support the effectiveness of integrated local exhaust ventilation in reducing exposure, while also highlighting the need for further refinement in ducting and air intake systems. This research provides a practical and scalable solution to enhance safety in pathology laboratories, particularly in resource-limited settings. Keywords: Pathology anatomy, grossing station, exhaust system, formaldehyde Share Link | Plain Format | Corresponding Author (Meike Rachmawati)

2	Biomedical Engineering	ABS-20
Empowering Communities Through the Transfer of Technology for the Formulation of Traditional Herbal Remedies Based on Red Ginger and Lemongrass in Karya Mukti Village, Ciwidey Lelly Yuniarti, Widayanti, Eka Hendryani, Tryando Bathara, Miranti Kania Dewi, Muhamad Nurel Galbi Faculty of Medicine, Universitas Islam Bandung Abstract Red ginger (Zingiber officinale var. rubrum) and lemongrass (Cymbopogon citratus) are well known for their health benefits, including antidiabetic properties and cholesterol-lowering effects. One of the herbal products that can be easily developed from these plants is essential oil. Essential oils are a traditional form of Indonesian herbal medicine that have been used for centuries to support health and treat illness. They are beneficial clinically, economically, and can be stored for long periods. The partner of this community service program (PKM) is the Hurip Barokah farmer group, located in Wangun Hamlet, Karya Mukti Village, Cililin Subdistrict, Bandung Regency, about 28 km from the Islamic University of Bandung. Most residents in this area work as farmers. A previous PKM program in this village involved planting medicinal herbs on unused land. However, the current use of red ginger and lemongrass is still limited to decoctions, which are not durable and cannot be stored long term. To provide a sustainable solution, the Faculty of Medicine PKM team conducted a workshop and mentoring program to train the community in making essential oils from red ginger and lemongrass. This approach aims to improve the usability and shelf life of herbal medicines. This activity was conducted directly in Kampung Wangun, Karya Mukti Village, with participants from the Hurip Barokah community. The primary objective was to enhance the quality of human resources and basic public services, addressing strategic issues that directly impact the community^s quality of life. Keywords: red ginger, lemongrass, herbal medicine, essential oil Share Link | Plain Format | Corresponding Author (lelly yuniarti)

3	Biomedical Engineering	ABS-39
Strengthening Poskestren Institutions Through Advocacy, Legality, and Capacity Building for Cadres at the Baitul Hidayah Islamic Boarding School in Bandung Regency Yudi Feriandi (a*), Titik Respati (b), Amelia Dwi Heryani (c), Erik Setiawan (d), Wiki Angga Wiksana (d) a) Bagian Ilmu Pendidikan Kedokteran dan Humaniora, Fakultas Kedokteran Universitas Islam Bandung *yudi.feriandi[at]unisba.ac.id b) Bagian Ilmu Kesehatan Masyarakat, Fakultas Kedokteran Universitas Islam Bandung c) Bagian Ilmu Kesehatan Masyarakat Industri, Fakultas Kedokteran Universitas Islam Bandung d) Fakultas Ilmu Komunikasi Universitas Islam Bandung Abstract Islamic boarding schools (pesantren) have been identified as promising grassroots platforms for community-based health promotion through the establishment of Islamic Boarding School Health Posts (Poskestren). However, challenges related to institutional legality, organizational structure, and the competency of health cadres impede optimal functioning and sustainability. The Community Service Program (PKM) was conceived with the objective of contributing to the institutional strengthening of Poskestren at the Baitul Hidayah Islamic Boarding School, situated in Bandung Regency, West Java. The intervention was predicated on three fundamental strategies: first, cross-sectoral advocacy with health authorities and stakeholders- second, facilitation of institutional legality and administrative documentation- and third, an initial assessment of health cadre competencies. The program has led to marked progress in legal formalization, which is currently awaiting approval from the District Health Office. Concurrently, the organizational structure of Poskestren is being formalized through an official decree from the pesantren leadership. A study of 30 prospective health cadres revealed significant deficiencies in knowledge and skills related to first aid, rational use of medicines, basic nutrition, and the principles of clean and healthy living behavior (PHBS). These findings underscore the necessity for structured, context-specific training modules guided by a standardized cadre handbook. This initiative demonstrates that a collaborative, empowerment-based approach is essential to ensuring the long-term viability and impact of Poskestren as a model for health promotion in Islamic educational settings. Keywords: legality- cadres- health- Islamic boarding schools- poskestren Share Link | Plain Format | Corresponding Author (Yudi Feriandi)

4	Biomedical Engineering	ABS-42
Bioactive Self-Nanoemulsifying Drug Delivery Systems: Formulation Strategies, Biopharmaceutical Performance, and Therapeutic Applications Sani Ega Priani (a,b*), Adilah Nurhaliza (a), Gofarana Wilar (c), Anis Yohana Chaerunisaa (d), Iyan Sopyan (d) a). Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Islam Bandung, Jl. Ranggagading, Bandung 40116, Indonesia b) Doctoral Program of Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, Sumedang 45363, Indonesia *egapriani[at]gmail.com c). Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, Sumedang 45363, Indonesia d). Department of Pharmaceutics and Technology of Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, Sumedang 45363, Indonesia Abstract Self-Nanoemulsifying Drug Delivery Systems (SNEDDS) are lipid-based delivery platforms that spontaneously form nanoemulsions in gastrointestinal fluids, thereby enhancing the solubility, dissolution, and absorption of poorly water-soluble drugs. Bioactive SNEDDS incorporate therapeutic oils that function both as lipid excipients and as active agents with intrinsic pharmacological effects. This review examines the development of Bio SNEDDS in terms of formulation strategies, biopharmaceutical performance, and therapeutic applications. A systematic literature search was conducted on studies published within the last five years from reputable databases. Reported bioactive oils include black seed oil, pomegranate seed oil, turmeric oil, copaiba oil, cardamom oil, eucalyptus oil, mentha oil, olive oil, mahogany seed oil, raspberry oil, and coconut oil fatty acids. When combined with suitable surfactants and co-surfactants, these oils have yielded nanoemulsions often below 100 nanometers in size with narrow polydispersity, high stability, rapid emulsification, and markedly enhanced bioavailability. The improvement in bioavailability was mainly attributed to the efficient drug delivery provided by the SNEDDS system. Generally, the bioactive oils offered complementary pharmacological effects that were secondary to the benefits from improved solubility and absorption. Overall, Bio SNEDDS present a promising dual-function platform, with the delivery system as the primary driver of performance and the bioactive oils offering potential complementary benefits Keywords: SNEDDS- Bioactive oil- Formulation- Pharmacokinetic- Pharmacodynamic Share Link | Plain Format | Corresponding Author (Sani Ega Priani)

5	Biomedical Engineering	ABS-50
Understanding Tuberculosis in Rural Indonesia: An Analysis of Contributing Factors Rastipiati(a*), Fuzi Fauziatun Nisa(b), A Asrina(c), Nita Ike Dwi Kurniasih(d) Bhakti Husada Indonesia University Jl. Lkr. Bayuning No. 2, Kadugede, Kadugede Subdistrict, Kuningan Regency, West Java *rasti.mkepumy[at]gmail.com Abstract Tuberculosis (TB) remains a major global health problem, causing 10.6 million cases and 1.4 million deaths annually. In Indonesia, the burden is particularly severe in rural areas where limited health services, low education, and socioeconomic vulnerabilities increase susceptibility. This study examined associations between gender, age, education, smoking, and income with TB incidence among patients at community health centers in rural Indonesia. A quantitative cross-sectional study was conducted with 80 TB patients selected by total sampling. Data were obtained through structured questionnaires and analyzed using the Chi-square test. The majority of patients were male (72.5%), within productive age (65%), had low education (68.7%), moderate smoking behavior (53.8%), and low income (67.5%). Statistical analysis showed significant associations between TB incidence and gender (p = 0.001), age (p = 0.004), education (p < 0.001), smoking (p < 0.001), and income (p = 0.012). These findings highlight that socio-demographic and behavioral factors strongly influence TB occurrence. The results emphasize the importance of targeted health promotion, smoking cessation programs, and socioeconomic support strategies to enhance TB prevention and management in rural primary healthcare settings. Keywords: Tuberculosis, Risk Factors, Socio-demographic Determinants, Smoking, Rural Indonesia. Share Link | Plain Format | Corresponding Author (Rastipiati Rastipiati)

6	Chemistry	ABS-3
Formulation and Kinetic Evaluation of Curcumin Nanogel Based on Alginate Dialdehyde Saviola, Fitrianti Darusman, Hilda Aprilia Wisnuwardhani, Hanifa Rahma, Arlina Prima Putri Department of Pharmacy, Faculty of Mathematics and Natural Science, Universitas Islam Bandung, Ranggagading 8, Bandung, 40116, Indonesia Abstract Cancer is a potentially fatal disease caused by uncontrolled and abnormal cell growth. It is characterized by unregulated cell proliferation at a high rate, leading to continuous cell division . Breast cancer is among the primary factors underlying women mortality. Conventional chemotherapy is frequently associated with high systemic toxicity and limited bioavailability, thereby highlighting the necessity for more effective and less harmful therapeutic options. Biological therapy, also known as biologically based practice, is an alternative cancer treatment that utilizes natural compounds to directly or indirectly destroy cancer cells by triggering an immune response. One promising natural compound for cancer therapy is curcumin, also known as diferuloylmethane (C21H20O6), the orange-yellow pigment found in Curcuma longa. This study developed a curcumin-based nanogel using dialdehyde alginate via the inverse microemulsion method to enhance curcumin stability and delivery. Characterization included organoleptic tests, homogeneity, pH, viscosity, particle size, polydispersity index (PDI), zeta potential, entrapment efficiency, and drug release kinetics. The optimal formulation, F4, showed a particle size of 144,63 nm, PDI 0.536, and zeta potential -32.67 mV, indicating good stability. Release kinetics study shows that it followed the Higuchi model, suggesting controlled release. This nanogel formulation demonstrates alginate as a potential matrix for as curcumin encapsulation, contributing to the development of nanotechnology-based pharmaceuticals. Keywords: Curcumin, Nanogel, Dialdehyde Alginate, Kinetic Evaluation Share Link | Plain Format | Corresponding Author (Arlina Prima Putri)

7	Chemistry	ABS-5
Determination of Specific and Non-Specific Standardization Parameters for Simplicia of Pineapple Peels [Ananas comosus (L.) Merr.] Farendina Suarantika, Hanifa Rahma, Bambang Tri Laksono Faculty of Mathematics and Sciences, Universitas Islam Bandung Abstract Ananas comosus (L.) Merr or pineapple contains some phenolic compounds such as o-coumaric acid, gallic acid, syringic acid, vanillin, ferulic acid, sinapic acid, and gentisic acid which possess antioxidant properties. Mainly, the peel is particularly rich in fiber, vitamins, and bromelain than the pineapple flesh. Despite its nutritional benefits, pineapple peel is often overlooked. Plant-derived natural substances can originate from various parts, including the bark, roots, fruits, leaves, and seeds-meaning any part of the plant may hold active compounds. The use of plants like simplicial requires standardization to ensure the quality, efficacy, and safety of herbal materials in accordance with the Indonesian Herbal Pharmacopoeia, Materia Medika Indonesia, and the Republic of Indonesia^s Ministry of Health regulations. Standardization involves both specific and non-specific parameters. The result of organoleptic test showed that the pineapple peels simplicia had a dark brown color, a fine powder texture, a sour and bitter taste, and a distinctive aromatic odor. Total ash content 4,876%- Acid insoluble ash content 1,443%- water and ethanol soluble content 12,243 % and 17,58%. For drying losses 6,451%, and water content 4,533%. Based on the results of specific parameters and non-specific standardization of Ananas comosus (L.) Merr. simplicia met the standard requirements. Keywords: Pineapple, Ananas comosus (L.) Merr, Simplicia, Standardization, Specific and Non-Specific Share Link | Plain Format | Corresponding Author (Farendina Suarantika)

8	Chemistry	ABS-8
Enhancing Community Knowledge on Essential Oils Through Educational Outreach in Mekarwangi Village, West Bandung Hanifa Rahma 1, Bambang Tri Laksono 1, Taufik Muhammad Fakih 1, Farendina Suarantika 2, Vinda Maharani Patricia 2, Nurlaelatul Hadawiyah 1, Muhamad Ilham Hidayat 1 1. Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Islam Bandung, Jl. Ranggagading, Bandung 40116, Indonesia 2. Pharmacist Professional Education Study Program, Faculty of Mathematics and Natural Sciences, Universitas Islam Bandung, Jl. Batik Halus, Bandung 40123, Indonesia Abstract Essential oils are volatile aromatic compounds extractedfrom plants, widely known for their health and economicbenefits. Indonesia ranks among the worlds top producers, with over 40 types of essential oils, includingeucalyptus, citronella, clove, patchouli, ginger, nutmeg, and tamanu. Despite this rich potential, utilizationremains suboptimal, particularly in Mekarwangi Village, West Bandung Regency, due to limited public awareness. This study aimed to enhance community knowledge aboutessential oils through targeted educational outreach. A descriptive quantitative observational method wasemployed, involving 19 participants. Initial knowledge wasassessed using a pre-test questionnaire, followed by a counseling session that included informational materialsand interactive discussions led by a subject matter expert. A post-test was then administered to evaluate changes in understanding. The results demonstrated a statisticallysignificant improvement in knowledge, with averagescores increasing from 62.37&#8239-plus min&#8239-10.05 to 75.52&#8239- plus min 11.04. Notably, 63.16 percent of participants showed a qualitative shiftfrom poor to good knowledge categories. These findingsindicate that structured dissemination and counselingefforts effectively improved both the quality and quantityof public understanding regarding the use of essential oilsin Mekarwangi Village. This suggests that similarcommunity-based interventions could be a valuablestrategy for promoting the utilization of local natural resources for health and economic benefits. Keywords: Essential oils, Community knowledge, Educational outreach, Indonesia, Quantitative improvement Share Link | Plain Format | Corresponding Author (Hanifa Rahma)

9	Chemistry	ABS-29
Optimization and Characterization of Nanoemulsions of Protein Hydrolysate from Black Soldier Fly Maggot as an Antioxidant Vinda Maharani Patricia, Hanifa Rahma, Hilda Aprilia Wisnuwardhani, Yani Lukmayani, Syadza Syahida Zahra Universitas Islam Bandung Abstract Increased exposure to ultraviolet (UV) radiation is a primary trigger for the heightened production of free radicals in the body, underscoring the urgent need for effective natural antioxidant agents. Protein hydrolysate derived from Black Soldier Fly (BSF) maggots has been identified as a rich protein source with significant antioxidant potential. This study focuses on the optimization and characterization of nanoemulsions formulated with BSF maggot protein hydrolysate, considering variations in the enzymes used during the hydrolysis process. Furthermore, the antioxidant activity of the resulting nanoemulsions was comprehensively evaluated using the DPPH radical scavenging assay method. The results indicate that hydrolysis using the pepsin enzyme yielded protein hydrolysate with the best antioxidant activity, as demonstrated by an IC50 (Inhibitory Concentration 50%) value of 136,405 ug/mL. The optimal nanoemulsion formulation consisted of protein hydrolysate, Tween 80, PEG 400 (at a 1:1 ratio), Virgin Coconut Oil (VCO), and distilled water. This formulation exhibited excellent physical characteristics, including a globule size of 14,27 nm, a Polydispersity Index (PDI) of 0,14, a zeta potential of 0,83, and a viscosity ranging from 10-2000 cPs. Stability tests conducted over six cycles using heating-cooling and freeze-thaw methods showed no phase separation, with stable pH values of 5,505, and high transmittance of 97,9% and 96,75%. Although IC50 value value indicated very weak antioxidant activity was 4941,364 ug/mL, the formulation demonstrated remarkable physical stability and potential as a topical antioxidant. Keywords: protein hydrolysate, maggot, black soldier fly, antioxidant, nanoemulsion Share Link | Plain Format | Corresponding Author (Vinda Maharani Patricia)

10	Chemistry	ABS-31
Alpha-amylase Inhibitory Activity of Sembung Stem Extract (Blumea balsamifera L.) as an Antidiabetic Agent Ratih Aryani, Umi Yuniarni, Bertha Rusdi, Tarisa Perolin Universitas Islam Bandung Abstract Diabetes mellitus is a degenerative disease caused by chronic metabolic disorders, characterized by hyperglycemia. This condition is typically triggered by decreased tissue sensitivity to insulin, which can lead to various progressive and multifactorial systemic complications. One strategy to control hyperglycemia is to inhibit carbohydrate-hydrolyzing enzymes, such as alpha-amylase, thereby managing postprandial blood glucose spikes. The stem of sembung (Blumea balsamifera L.) is known to contain secondary metabolites with potential antidiabetic properties. This study aimed to determine the alpha-amylase inhibitory activity of sembung stem extract using the DNS (3,5-dinitrosalicylic acid) method. The extract was obtained through maceration using 96% ethanol as the solvent, followed by in vitro evaluation of alpha-amylase inhibitory activity by determining the IC&#8325-&#8320- value, with acarbose used as the reference standard. The results showed that the ethanolic extract of sembung stem had an IC50 value of 232.68 ppm (weak category), while acarbose exhibited an IC50 value of 4.33 ppm (very strong category). Although its activity was lower than acarbose, the sembung stem extract demonstrated potential as an antidiabetic agent through alpha-amylase inhibition. Keywords: Sembung, Blumea balsamifera, antidiabetic activity, alpha-amylase, IC50 Share Link | Plain Format | Corresponding Author (Ratih Aryani)

11	Chemistry	ABS-32
Anthelmintic activity of ethanol extract granules of water apple leaves Suwendar, Ibrahim Jantan, Dina Mulyanti, Umi Yuniarni Pharmacy Study Program, Universitas Islam Bandung. Abstract Infectious diseases caused by worms in livestock, including cattle, are still considered a serious problem including in Southeast Asia. Java apple leaves have been known to have anthelmintic activity on Ascaris suum worms. Ascarus suum is a worm that lives in pigs and has similar properties to worms that live in cattle. In this study, java apple (Eugenia aqueum) leaves will be made into granules that can be mixed with animal feed. Furthermore, anthelmintic activity tests were carried out on worms and eggs. The results showed that java apple leaf extract granules met the requirements of the humidity test, Flow properties test and compression density test aspects. Result showed that the extract granules showed anthelmintic activity. The IC50 for male worms to experience paralysis is 35.19% b.v, , while the IC50 for female worms to experience paralysis is 55.24% b/v. The inhibition ability of apple rose leaf ethanol extract on the development of fertile eggs calculated was 58.80%. Based on the results above it can be concluded that a granul of ethanol extract of java apple leaves showed potential as an anthelmintic because it caused paralysis in Ascaris suum worms after being observed for 120 minutes. that the preparation also caused a significant reduction in the number of fertile worm eggs compared to controls (p<0.05). Keywords: java apple leaf, granules preaparations, anthelmintic effect Share Link | Plain Format | Corresponding Author (Suwendar Suwendar)

12	Civil Engineering	ABS-4
LIMESTONE MINE EXPLORATION USING ELECTRICAL RESISTIVITY TOMOGRAPHY Noor Fauzi Isniarno, Sriyanti, Linda Pulungan, Universitas Islam Bandung Abstract Rock mining materials are very important commodities for infrastructure development programs and are very important for improving the national economy. Along with this program, there will also be an increase in the need for raw materials for infrastructure development, especially limestone raw materials as a cement mixture. The increase in cement needs must be accompanied by an increase in production capacity in several factories in Indonesia. The increasing supply of raw materials encourages investors to mine limestone. Many business actors in the limestone mining sector will play an active role in supporting government programs in meeting cement raw materials. West Bandung Regency is an area in West Java that has the potential for limestone mining materials that are worthy of being developed. This happens because several rock formations in the West Bandung Regency area are composed of limestone and have a fairly good distribution and have the potential for mining. Therefore, mining efforts cannot be separated from the work of searching for mining materials or mining materials. One of the jobs that must be done is to carry out exploration activities, mining exploration activities play a very important role in determining the quantity, quality, and form of mining materials which will later be useful as information to be used as mining prospects in the future. Keywords: Mining Eksploration, Geological Modeling, Resource Estimation, Electrical Resistivity Tomography, Photogrammetry Share Link | Plain Format | Corresponding Author (Noor Fauzi Isniarno)

13	Civil Engineering	ABS-9
Development of Sustainable Development Goals (SDGs) Village Model through Integration of Technology and Islamic Values: A Case Study of Cimenyan District Asep Hariyanto (a*), Saraswati (a), Lely Syiddatul Akliyah (a), Salma Salsabila Nurjaman (a), Sultan Dhafa Al Gibran (a), Muhammad Rizky (a) a) Urban and regional Planning Study Program, Faculty of Engineering, Universitas Islam Bandung, Indonesia *asep.hariyanto[at]unisba.ac.id Abstract This study aims to develop a sustainable village development model that integrates technology and Islamic values in Cimenyan District. The research method used is a case study with quantitative and qualitative approaches. The results show that the integration of technology and Islamic values in the sustainable village development model can improve the quality of life of the community, promote social justice, and reduce poverty. This study also shows that technology can be an effective means to disseminate Islamic values and increase community awareness about the importance of sustainable development. Furthermore, this study finds that community participation and government support are crucial in implementing the sustainable village development model. The model developed in this study can serve as a reference for the government and related stakeholders in planning and implementing better sustainable village development. This study contributes to the development of theory and practice of sustainable village development based on technology and Islamic values. Keywords: Sustainable village development- technology- Islamic values Share Link | Plain Format | Corresponding Author (Dr. Asep Hariyanto, S.T., M.Si.)

14	Civil Engineering	ABS-10
GUIDANCE AND EDUCATION ON ENVIRONMENTALLY FRIENDLY AGRICULTURAL AND ECOTOURISM MANAGEMENT IN THE NORTHERN BANDUNG REGION (KBU): A CASE STUDY OF MANDALAMEKAR VILLAGE, CIMENYAN DISTRICT, BANDUNG REGENCY Saraswati (a*), Asep Hariyanto (a), Ivan Chofyan (a), Syifa Rahmawati (a), Laura Audina (a), Reynate Firyal (a), Wafa Cantika Mugia Utami (a), Imam Muttaqin (a) a) Urban and regional Planning Study Program, Faculty of Engineering, Universitas Islam Bandung, Indonesia *saraswati[at]unisba.ac.id Abstract The Northern Bandung Region (Kawasan Bandung Utara/KBU) in West Java Province plays a crucial role as a conservation area for Bandung City, Cimahi City, Bandung Regency, West Bandung Regency, and Sumedang Regency. This region is strategically important for preserving environmental sustainability and maintaining ecological balance. However, pressure from land-use conversion and the increasing development of built-up areas has led to environmental degradation, including land degradation and the loss of regional potential. Mandalamekar Village, located in Cimenyan District, is one of the villages within the KBU that holds significant potential for agricultural development, with key commodities including shallots, potatoes, cabbage, corn, peanuts, tomatoes, and chilies. Situated at an elevation of approximately 800-1,200 meters above sea level, the village enjoys a cool climate and offers beautiful, lush scenery. Existing tourism attractions in Mandalamekar Village include cafes, lodgings, villas, rest areas for hikers and cyclists, and scenic viewpoints showcasing Bandungs city lights at night. These features make Mandalamekar Village highly strategic for the development of nature-based tourism. Accordingly, the preservation and sustainability of the environment are essential in the development of eco-friendly ecotourism in the area. This community service initiative aims to provide assistance and education to the local community in managing environmentally friendly and community-based sustainable agriculture and ecotourism. The implementation of Focus Group Discussions (FGDs) serves to enhance the communitys capacity in optimizing the management of agricultural land and tourism sites. Local residents are expected to become more aware and proactive in maintaining environmental sustainability through practices such as appropriate planting systems, land treatment, the use of suitable growing media, organic fertilizers, as well as the management of agricultural and touris Keywords: Northern Bandung Region- environmentally friendly agriculture- ecotourism Share Link | Plain Format | Corresponding Author (Ir. Saraswati, M.T)

15	Civil Engineering	ABS-12
Unisba Sunda Politan : SDGs Model of Islamic-Local-Global Integration for Branding Design of Tourist Areas in East Bandung Weishaguna Weishaguna, Ira Safitri, Lutfhi Ahmad Barwanto, Rama Arianto Widagdo Urban and Regional Planning Study Programe in Bandung Islamic University Abstract The development plan of Technopolis Gede Bage and Tegalluar New Town with a smart city paradigm has had a high impact of rapid urbanization and modernization to agrarian and traditional Sundanese culture pockets of East Bandung. The issue of the loss of the traditional culture entities become very serious when symptoms apper : (1) the gap in the quality of the modern urban environment with the surrounding rural area, (2) the gap in social quality of immigrant commumities with local communities, (3) the gap amoung urban economic based on digital technology with traditional economic in rural area, (4) the gap in the competitivoness of local commnunities with modern institutions that have global networks. Anticipating the issu of regional disparities, this research article offers a solution to build Unisba Sunda Politan as SDGs Model based on integration Islamic-local-global value for branding design of tourist area in East Bandung. Keywords: SDGs, branding, design, tourism, sunda Share Link | Plain Format | Corresponding Author (Weishaguna Weishaguna)

16	Civil Engineering	ABS-16
The development of a tourism village master plan in Kampung Cileuweung, Cipageran Sub-District, Cimahi City Ernady Syaodih, Irland Fardani, Verry Damayanti, Rama Arianto Widagdo, Hani Burhanudin, Fachri Hilmansyah Wildan, Farell Hakeem Ihza Djiwangsa, Sa^dan Mufid, Bertha Anissa Maisarah Napitupulu Perencanaan Wilayah dan Kota, Universitas Islam Bandung Abstract The development of a tourism village master plan is a strategic effort to harness local potential through community-based participation. This study aims to formulate a master plan for Cileuweung Village as a tourism destination using a community-based development approach. The research employs a qualitative descriptive method, with data collected through field observations, interviews with community leaders, and focus group discussions (FGDs) with local residents. The findings indicate that Cileuweung Village possesses strong natural, cultural, and social assets that have not been fully optimized. Through participatory processes, a development plan was formulated, covering area zoning, community institutional strengthening, and strategies for promotion and sustainability. This master plan is expected to serve as an implementable guideline for both government and local communities in realizing Cileuweung Village as a sustainable, community-empowered tourism destination. Keywords: tourism village, master plan, community development, empowerment Share Link | Plain Format | Corresponding Author (Ernady Syaodih)

17	Civil Engineering	ABS-22
Spectral Reflectance Analysis of Surface Soil for Drought Level Identification Using Drone-Based Multispectral Imagery in Cipatat Village, Padalarang District, West Bandung Regency Iswandaru, Dono Guntoro, Yuliadi Mining Engineering Department, Faculty of Engineering, Universitas Islam Bandung, Indonesia Abstract This study aims to analyze land drought levels in Cipatat Village, Padalarang District, West Bandung Regency using a remote sensing approach based on multispectral imagery. Data were acquired by a digital drone platform with high spatial resolution, enabling the identification of surface soil spectral reflectance under drought conditions. Drought index analysis was conducted over an area of approximately 7 hectares and classified into three categories: low drought (yellow), moderate drought (orange), and high drought (red). The interpretation results indicate that low drought dominates with 66% or about 4.62 ha, while moderate drought accounts for 18% (about 1.26 ha) and high drought reaches 16% (about 1.12 ha). Spatially, high drought areas are concentrated in the central to eastern part of the site, whereas low drought conditions are more prevalent in the western and southern sections. These findings highlight the heterogeneity of land conditions influenced by topographic variation and soil physical properties. The spatial information on land drought levels is expected to serve as a scientific basis for water resource management, drought risk mitigation, and sustainable land-use planning in the Padalarang region, West Bandung Regency. Keywords: land drought, spectral reflectance, multispectral imagery, drone, remote sensing, Padalarang. Share Link | Plain Format | Corresponding Author (Iswandaru iswandaru)

18	Civil Engineering	ABS-23
Spatial Planning and Building Setbacks in the Binongjati Knitting Industrial Area, Bandung City: A Preliminary Study of Urban Planning, Economics, and Transportation Rahmat Lazuardi (a*), Vera Septiawati (a), Muhammad Syarqim Mahfudz (a), Ammarrafi Rahman Alharits (a), Fajrin Meilani Azzahra Zain (a), Khairan Muhammad Al-Kanz (a), Saeful Hidayat (a) a) Faculty of Engineering, Universitas Islam Bandung, Bandung, Indonesia Abstract Binongjati home-based industrial area of Bandung City, which has rapidly developed as a center for household-based knitting production. Mapping results reveal that over 70% of buildings violate the GSB regulations regarding roads and building-to-building distances, especially Class 4 buildings that serve mixed functions (residential and SMEs). In addition, 77% of the buildings along the riverbanks also breach river setback regulations as stipulated by national policy. These violations are not merely acts of noncompliance, but rather reflect structural pressures due to limited land availability, microeconomic needs, and misalignment between formal regulations and the spatial practices of local communities. The area^s transport infrastructure has not developed in parallel with economic growth, triggering spatial conflicts, congestion, and a decline in built environment quality. Poor inter-agency coordination and the lack of effective oversight mechanisms further exacerbate the situation. This study underscores the need for a more adaptive, participatory, and spatial data-driven approach to planning. Managing areas like Binongjati requires policies that bridge legal certainty with spatial justice, through the development of micro-zoning guidelines, community empowerment, and the utilization of GIS technology for continuous monitoring. The research provides both a conceptual and operational framework for transforming informal urban areas into structured, functional, and equitable living spaces. Keywords: Spatial Planning, Building Setbacks, Home-based Industry, Spatial Justice, Informal Settlements Share Link | Plain Format | Corresponding Author (Rahmat Lazuardi)

19	Civil Engineering	ABS-36
GIS to Predict Flood Vulnerability Areas in Dayeuhkolot Industrial Estate Astri Mutia Ekasari- Hani Burhanudin- Virza Fachri Fahlevi- Adinda Chiquita Ramadhani Zahra Universitas Islam Bandung Abstract Flooding significantly impacts local industrial and economic activities. It has been shown to disrupt operations, cause worker absences, interrupt product delivery, damage facilities, and hinder raw material supplies. Dayeuhkolot District, located in Bandung Regency, covers about 448.6 hectares as an industrial area. This area, part of the downstream Citarum Hulu watershed, often experiences overflow floods from the Citarum River. The expansion of built-up land by 22 hectares over the past four years increases the potential for flood-affected zones. This study aims to identify flood-prone areas in the Dayeuhkolot industrial zone using a geographic information system (GIS) overlay method, which combines multiple spatial parameters to assess flood vulnerability. The analysis indicates that 61.2% (274.3 hectares) of the area in KPI Dayeuhkolot is quite prone to flooding, while 38.2% (171.9 hectares) is very vulnerable. Flood-prone zones are distributed across six locations: Jl Cibogo, Jl Cisirung, Jl Sekeandur, Jl Citarum, Jl Dayeuhkolot, and Jl Palasari. The area surrounding Jl Cibogo is expected to be most severely affected due to its large flood vulnerability zone, which could lead to substantial economic and social losses as the land use in this area includes industrial, commercial, and office spaces. To address this issue, implementing the Water Sensitive Urban Development (WSUD) approach should be considered. Keywords: Flood Vulnerability, Dayeuhkolot, GIS, WSUD Share Link | Plain Format | Corresponding Author (Astri Mutia Ekasari)

20	Civil Engineering	ABS-38
Accelerating Village Development through Fiscal Decentralization: An Analysis of Success Determinants in the Village Development Index (VDI) in Bandung Regency Tarlani Tarlani, Nia Kurniasari, Ernady Syaodih, Kalila, Salsabila Universitas Islam Bandung Abstract ^Fiscal decentralization is a fundamental instrument for promoting regional autonomy. This study aims to analyze the impact of fiscal decentralization on the acceleration of village development in Bandung Regency, focusing on improvements in the Village Development Index (VDI) and identifying the key determinants of success. Using a mixed-methods approach, this research analyzes secondary VDI data from all 270 villages for the year 2025, alongside primary data from in-depth interviews with village heads. The results show a significant transformation in village status. As of 2025, 186 villages, or nearly 69%, have achieved ^Independent^ status- 82 villages, or 30%, are ^Advanced^- and only 2 villages remain in the ^Developing^ category. This acceleration shows a strong correlation with the allocation of the national Village Fund (DD) and the regional Village Fund Allocation (ADD). Qualitatively, we found that the effectiveness of these fiscal transfers is heavily determined by local governance factors. These include: first, the leadership capacity and digital adaptability of village heads- second, the quality of local human resources- third, the strategic role of professional village facilitators- and fourth, the degree of community participation in planning and oversight. In conclusion, while fiscal decentralization is an effective catalyst for village development, its impact is strongly mediated by the quality of local institutions and actors. Therefore, strengthening participatory governance is a crucial policy implication for sustainable development. Keywords: Fiscal Decentralization, Accelerating, Village Expenditure, Digital, Governance Share Link | Plain Format | Corresponding Author (Tarlani tarlani)

21	Civil Engineering	ABS-40
Assessing the Quality Fulfillment of Integrated Green Open Space Functions in Bandung City Based on the Indonesia Green-Blue Index (IHBI) Verry Damayanti, Lutfhi Ahmad Barwanto, Fachmy Sugih Pradifta, Farell Hakeem Ihza Djiwangsa, Fachri Hilmansyah Wildan, Bertha Anissa, Hasna Hapsari, Hali Aulia Ramadhan Program Studi Perencanaan Wilaya dan Kota, Fakultas Teknik, Universitas Islam Bandung Abstract Bandung City faces significant challenges in providing adequate Green Open Space, with the current provision reaching only 12.8 percent of the total city area far below the national minimum standard of 30 percent. Amid limited land availability and increasing development pressure, enhancing the quality of existing RTH becomes a strategic alternative. This study aims to evaluate the quality of nine urban parks in Bandung using the Indonesian Green Blue Index (IHBI), which measures both ecological and social aspects through a weighting system and bonus points for vegetative elements. The method involved field observations to identify park elements such as vegetation types, pavement materials, and additional ecological features, analyzed using IHBI calculation schemes based on the Regulation of the Minister of ATR BPN No. 14 of 2022. The results show that Tegallega Park recorded the highest IHBI score 110,650.94 m2, while Sukajadi Park 3,519.42 m2 and Cibeunying Park 8,895.65 m2 had the lowest values due to their limited area. Interestingly, three strategically located urban parks Alun Alun Bandung, Alun Alun Ujungberung, and Alun Alun Cicendo also showed low bonus element scores, indicating a need to improve the ecological quality and vegetative features of these spaces. The study recommends optimizing vegetation cover, using permeable materials, and adopting IHBI as a regular assessment tool for sustainable urban park management. Keywords: green open space, Indonesian green blue index, urban parks, ecological quality, Bandung Share Link | Plain Format | Corresponding Author (Verry Damayanti)

22	Civil Engineering	ABS-57
Tier 2-Based Inventory of Vehicular CO Emissions in Banda Aceh Using Vehicle Kilometers Traveled T. Robby Irza, Sugiarto Sugiarto, Sofyan M. Saleh, Renni Anggraini, Mariana Mariana, Roudhia Rahma, Tomio Miwa Universitas Syiah Kuala Abstract Air pollution in Banda Aceh, Indonesia, has intensified owing to the widespread use of private vehicles, particularly motorcycles and passenger cars. This problem is exacerbated by outdated vehicle technologies, inadequate infrastructure, and the dominance of high-emission transportation modes. This study aimed to quantify carbon monoxide (CO) emissions from private vehicles across nine sub-districts in Banda Aceh using a Tier 2 emission inventory approach based on Vehicle Kilometers Traveled (VKT) data. Data were collected through a field survey involving 550 respondents using stratified random sampling across the nine sub-districts. CO emissions were estimated using VKT data based on the Tier 2 emission factor. The analysis identified Baiturrahman (410.92 tons/year), Banda Raya (334.79 tons/year), and Lueng Bata (351.12 tons/year) as the top three sub-districts contributing the highest annual CO emissions. Overall, motorcycles accounted for 1,401.40 tons/year, whereas passenger cars contributed 1,157.38 tons/year, resulting in a total CO emission load of 2,558.78 tons/year throughout Banda Aceh. These findings underscore the urgent need for targeted environmental policies, cleaner vehicle technology, and improved urban transportation infrastructure. By providing a comprehensive emission profile, this study supports the development of sustainable urban mobility strategies and highlights the critical need for emission reduction to improve air quality.2,558.78 tons/year throughout Banda Aceh. These findings underscore the urgent need for targeted environmental policies, cleaner vehicle technology, and improved urban transportation infrastructure. By providing a comprehensive emission profile, this study supports the development of sustainable urban mobility strategies and highlights the critical need for emission reduction to improve air quality and public health. Keywords: emissions, carbon monoxide, VKT, Tier 2, environmental policies. Share Link | Plain Format | Corresponding Author (Sugiarto Sugiarto)

23	Civil Engineering	ABS-58
Projected Traffic Performance of a National Road Segment at Politeknik Negeri Lhokseumawe (PNL), Aceh, Indonesia Khudri Yansari, Sugiarto Sugiarto, Sofyan M. Saleh, Mariana Mariana, Roudhia Rahma , Tomio Miwa Master Program, Department of Civil Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia Department of Civil Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia Abstract Evaluating traffic performance is essential for the planning and management of sustainable urban transportation systems, especially in corridors influenced by significant activity centers, such as universities. This study forecasts the performance of a national road segment situated directly in front of Politeknik Negeri Lhokseumawe (PNL), Aceh, Indonesia. Empirical data were gathered through traffic surveys conducted in 2025, which encompassed vehicle classification, volume, speed, and road geometry. The analysis employed the Degree of Saturation (DS) as the primary indicator of roadway performance, supplemented by traffic projection models utilizing historical vehicle registration and population growth data. Projections were made for a four-year period, extending to 2029. The results suggest that weekday traffic volumes will reach 2,564 pcu/h at STA 0+000, 2,612 pcu/h at STA 0+500, and 2,613 pcu/h at STA 1+000, representing a 7-8% increase compared to the baseline values in 2025. The corresponding DS values ranged from 0.65 to 0.69, categorizing the corridor under Level of Service (LOS) C. This classification indicates stable yet increasingly constrained conditions, where maneuverability remains possible but with noticeable declines in comfort and reserve capacities. The findings emphasize that the PNL corridor will remain operationally functional throughout 2029, although it is approaching critical thresholds that could lead to congestion if no interventions are implemented. This study highlights the importance of proactive management strategies, such as adaptive signal timing, traffic demand management, and public transport development, to mitigate the risks of service degradation. The outcomes provide evidence-based insights for transportation authorities, urban planners, and campus administrators to maintain mobility and safety within the Lhokseumawe urban network. Keywords: Degree of saturation, Lhokseumawe, road capacity, traffic performance, traffic projection Share Link | Plain Format | Corresponding Author (Sugiarto Sugiarto)

24	Computer Science	ABS-13
Identification of Student Profiles Based on Machine Learning Approach Ilham Faishal Mahdy, Rafif Naufal Oktiardi, Mohammad Wildan Nurul Haqqi Universitas Islam Bandung Abstract The competition among similar study programs necessitates each Study Program to devise strategies to compete in attracting new students, especially at Private Higher Education Institutions like the Islamic University of Bandung. One of the study programs at Universitas Islam Bandung, namely Statistics, has experienced a declining trend in new student enrollment over the last three years. One strategy that can be implemented is by identifying student profiles. The creation of student profiles can be used as an evaluation tool to improve the quality of education and the quality of student inputs. Furthermore, student profiles also serve as a distinctive feature of the Study Program, making it a reference for prospective students to continue their studies. Machine learning is one method that can be used to identify patterns in the data, in this case, student profiles. There are various machine learning methods, so comparing several machine learning algorithms is needed by observing the accuracy level against the observed data. Based on this consideration, several machine learning methods will be applied that can be used to create profiles of students in the Statistics Study Program at Universitas Islam Bandung. Keywords: Machine Learning, Statistics Study Program, Student Profiles, Universitas Islam Bandung Share Link | Plain Format | Corresponding Author (Ilham Faishal Mahdy)

25	Computer Science	ABS-26
Integrating AI-Based Modeling and Data Analysis into Entrepreneurship Education: Insights from a Multi-Stakeholder FGD Approach Glory Aguzman1, a), Johan2, b, Desman Hidayat3, c, Anggha Dipa Pratama4, d, Lorio Purnomo5, e, Pantri Heriyati6, f Binus University Abstract There are now more options for entrepreneurship education due to the growing importance of artificial intelligence (AI) in data-driven innovation and decision-making. However, particularly in venture contexts related to STEM, traditional entrepreneurship courses sometimes lack integration with computational modelling and simulation tools. To close this gap, this study explores how entrepreneurship curriculum might incorporate AI-supported modelling and data analysis tools to improve student venture validation and prototyping. Three Focus Group Discussions (FGDs) were held with industry practitioners, startup incubator coaches, and entrepreneurship lecturers using a qualitative exploratory approach. The goal of these talks was to jointly create an interdisciplinary course called Venture Creation that incorporates data science and artificial intelligence techniques that were modified from experimental physics. According to the findings, there is widespread support for integrating predictive analytics, AI-based simulations, and prototyping tools into entrepreneurial education. The advantages of giving students the ability to test hypotheses through iteration, make well-informed, evidence-based decisions, and participate in hands-on, real-world venture development were underlined by stakeholders. Interdisciplinary assessment, faculty readiness, and departmental curriculum collaboration are among the issues mentioned. In summary, the study shows that by connecting theoretical knowledge with real-world application, incorporating AI technologies into entrepreneurship education improves the calibre of venture formation. To successfully integrate AI as a cognitive and technological partner in entrepreneurship learning, the suggested curriculum emphasises the necessity of systemic transformation, including faculty development, interdisciplinary rubrics, and modular course design. Keywords: Entrepreneurship Education- Artificial Intelligence (AI)- Predictive Analytics- AI-based Simulation Tools- Venture Creation Share Link | Plain Format | Corresponding Author (glory aguzman)

26	Computer Science	ABS-33
Optimizing E-commerce Performance Through Marketing Analytics: A Longitudinal Analysis of a Fashion Brand (2019-2023 djamaludin, puti renosori, slamet universitas islam bandung Abstract Intense competition in the e-commerce fashion industry requires companies to adopt data-driven strategies to achieve sustainable growth. This research aims to optimize the e-commerce performance of a fashion brand through a marketing analytics approach. This study conducts a longitudinal analysis of five years of sales data (2019-2023) to evaluate multiple performance dimensions. The methodology includes the analysis of annual sales trends, identification of best-selling and underperforming products, mapping of sales channel (marketplace) effectiveness, assessment of promotional impact, and analysis of customer purchasing patterns based on demographics and time. Key findings reveal performance volatility, with a significant sales decline in 2020 due to the COVID-19 pandemic , followed by a strong recovery in 2021 and reaching peak revenue in 2023. The analysis reveals that product categories such as ^Oversized Tees^ and ^Headwear^ are primary revenue contributors. Shopee consistently dominates as the primary sales channel, holding approximately 60% of the market share. A very strong positive correlation was found between promotional costs and revenue - however, the Return on Promotion Spend (ROPS) exhibited a downward trend in 2023 as promotional budgets were aggressively increased. Furthermore, female customers were identified as the segment contributing to a larger share of total revenue. This study concludes that the systematic application of marketing analytics provides deep strategic insights for decision-making. The implication is that fashion brands can optimize product portfolios, efficiently allocate resources across sales channels, and design more effective promotional campaigns to drive sales performance and achieve sustainable business growth in a dynamic market. Keywords: Marketing Analytics, E-commerce, Performance Optimization, Longitudinal Analysis, Fashion Industry Share Link | Plain Format | Corresponding Author (djamaludin djamaludin)

27	Computer Science	ABS-44
Digital ADLX as a Foundation for Modern Learning: A Systematic Review an Bibliometric Analysis Hani Arie Rachmanie (1), Bunyamin (2), and Ishaq Nuriadin (3) (1),(2),(3) University of Muhammadiyah Prof. DR. HAMKA Abstract The rapid digital transformation in education has driven the need for innovation in learning methods that are able to answer the challenges of the 21st century. Digital ADLX is seen as a potential model in improving student engagement, motivation, and learning outcomes through more dynamic and contextual interactions. This study aims to explore and map the development of scientific studies related to digital ADLX through two main methodological approaches, namely systematic review and bibliometric analysis. Data were collected from more than 200 publications obtained from reputable databases such as Scopus and Web of Science during the period 2015 to 2025. The selection process was rigorous with reference to Cochrane guidelines, while bibliometric analysis was facilitated using VOSviewer and Bibliometrix software to identify publication trends, citation frequency, collaboration between authors, as well as dominant keyword mapping. The results showed a significant increase in the number of publications addressing digital ADLX over the past decade. In addition, a strong network of research collaborations between institutions and countries was found, suggesting that the issue of digital ADLX is a global agenda in the future development of education. This study makes an important contribution by providing a conceptual and empirical map that can inform the development of policies, learning strategies and teacher training that are adaptive to the needs of digital education. This study recommends the importance of cross-sector collaboration between researchers, practitioners and policymakers to strengthen a more systematic and sustainable implementation of digital ADLX in the formal education system. Keywords: Digital ADLX, active and deep learning, educational technology, student engagement, digital transformation, systematic review, bibliometric analysis Share Link | Plain Format | Corresponding Author (Hani Arie Rachmanie)

28	Computer Science	ABS-45
Implementation of PrestaShop CMS to Enhance E-Commerce in Cooperative Enterprises Erwin Harahap (a*), Septiana Ayu Estri Mahani (b), Hilwati Hindersah (c) a) Mathematics Department, Faculty of Mathematics and Natural Sciences, Universitas Islam Bandung, Indonesia *erwin2h[at]unisba.ac.id b) Management Department, Faculty of Economic and Business, Universitas Islam Bandung, Indonesia (c) Magister of City and Regional Planning Department, Faculty of Engineering, Universitas Islam Bandung, Indonesia Abstract In the era of digital transformation, cooperative enterprises face increasing pressure to modernize their business processes and compete within the growing e-commerce landscape. This study explores the implementation of the PrestaShop Content Management System (CMS) as a solution to enhance the e-commerce capabilities of cooperatives. PrestaShop, an open-source and modular CMS platform, offers flexible tools for building and managing online stores, making it an ideal choice for small to medium-sized cooperative businesses. The research involves designing and deploying a customized online shop tailored to the operational needs of a cooperative, including product categorization, payment gateways, and inventory synchronization. Through implementation and testing, the study demonstrates improvements in transaction efficiency, user accessibility, and inventory accuracy. The findings suggest that PrestaShop CMS can be effectively adapted to cooperative business models, promoting digital inclusion and enabling greater market reach. This work contributes to the ongoing discourse on digital empowerment for cooperative enterprises, especially in developing regions where technological adoption remains a challenge. Keywords: PrestaShop CMS- Cooperative Enterprises- E-Commerce Implementation- Online Shop- Digital Transformation Share Link | Plain Format | Corresponding Author (Erwin Harahap)

29	Electrical, Electronic, and Computer Engineering	ABS-24
Extreme Programming Implementation for Diabetes Mellitus Early Detection Expert System Using Forward Chaining Method Nurhayati, Akhiat, Ashar Abilowo, Fransiskus Panca Juniawan, Dwi Yuny Sylfania Poltekkes Kemenkes Pangkalpinang Universitas Bangka Beleitung Abstract Diabetes mellitus is a chronic disease that affects millions of people worldwide and is a major cause of morbidity and mortality. Early detection and intervention are crucial in managing the disease and preventing complications. In this paper, we propose an expert system for the early detection of diabetes mellitus using the forward chaining method, which developed with extreme programming. By combining the knowledge of team research and doctor interna as internal medicine specialist, we agreed that this system will have 17 symptoms. This system will utilize data from patient symptoms to generate a diagnosis quickly and accurately by using the Forward Chaining approach, which has ability in provide a lot of information from small data. In addition, we use extreme programming method in order to develop the system that can accurately and efficiently diagnose diabetes in its early stages. For the functional test, we conducted Blackbox Testing, with the result that all features were 100% working exactly as expected. Moreover, the next testing were 88,89% for Confusional Matrix Testing and 90 % for Human Expert Validation Testing. Keywords: Diabetes Mellitus, Early Detection, Expert System, Extreme Programming, Forward Chaining Share Link | Plain Format | Corresponding Author (Fransiskus Panca Juniawan)

30	Electrical, Electronic, and Computer Engineering	ABS-27
Extending TPB and TAM in Freemium Contexts: The Impact of eWOM and Brand Attractiveness on User behavior and Revenue Glory Aguzman, Aisyah Amini, Anggha Dipa Pratama, Lorio Purnomo, Pantri Heriyati, Richel Lamadrid Binus Entrepreneurship Centre, Management, Binus Business School Binus University Jakarta, Indonesia Abstract This study examines the impact of electronic word-of-mouth (eWOM) and brand attractiveness on behavioral intention and revenue stream performance within Spotify^s freemium business model. Drawing from the Theory of Planned Behavior (TPB) and the Technology Acceptance Model (TAM), a structural equation model was tested using data from 108 Gen Z respondents in Indonesia and the Philippines. Findings reveal that eWOM significantly influences both brand attractiveness and behavioral intention, with the latter emerging as the strongest predictor of revenue performance. While brand attractiveness enhances behavioral intention, its direct effect on revenue is negligible, underscoring the mediating role of intention. Additionally, eWOM exerts a direct positive effect on revenue, reinforcing its importance in driving monetization through peer influence and trust. These results highlight the necessity for freemium platforms to prioritize user engagement strategies that amplify social sharing and psychological motivation. Theoretically, this research extends TPB and TAM by integrating social dynamics into consumer decision-making processes in non-transactional digital environments. The study concludes that sustainable revenue growth in freemium models hinges on aligning social influence, brand credibility, and behavioral intention into a cohesive user experience. Keywords: eWOM, TPB, Brand Attractiveness, Behavioral Intention, Freemium Business Model Share Link | Plain Format | Corresponding Author (Lorio Purnomo)

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