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ECCFD-GNN: A Novel Risk-Sensitive Graph Neural Network Model for Fraudulent Transaction Detection
The study presents the integration of machine learning techniques for detecting the credit card fraud. Its integration maintains a behavioral profile of cardholders and other parameters like location, frequency, amount etc. resulting in the timely detection of any anomaly from the normal behavior. A novel approach ECCFD-GNN (Enhanced Credit Card Fraud Detection based on Graph Neural networks) is proposed enhancing the performance of fraud detection. The various behavioral indicators taken into c...
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CFD Simulation of Flame Characteristics Resulting from Volatile Matter Combustion of Various Biomass Pellets
Fitrah, Ramavi Akbar Akhsanul
; Kusumaningtyas, Ratna Dewi
; Widjanarko, Dwi
; Widyastuti, Catur Rini
; Hidayat, Muslikhin
; Aziz, Muhammad
While biomass is a promising carbon-neutral alternative to coal, the specific volatile matter (VM) flame characteristics of diverse biomass pellets, particularly water hyacinth, remain under-researched. This study uses a numerical CFD approach (Ansys Fluent) to investigate how varying VM fractions influence flame structure in a 2D planar slice of the furnace block (25 cm width). Simulations employed the SST k–ω turbulence and Eddy dissipation model to capture mixing-limited chemical reactions. B...
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Exploring Serum Bilirubin as a Potential Biomarker for Primary Open-Angle Glaucoma
Total bilirubin (TBIL) functions as a natural antioxidant, and its levels tend to decrease with increasing oxidative stress, including in glaucoma tissue. This study aims to explore the relationship between total serum bilirubin levels and the severity of primary open-angle glaucoma (POAG). A total of 25 POAG patients and 25 control subjects further divided into aged >60 years and ≤60 years from the Glaucoma Clinic of the Universitas Sumatera Utara Hospital and its affiliated hospitals were i...
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Analysis of the Implementation of Hospital Management Information Systems Using the HOT-Fit Method at Sebelas Maret University Hospital
LUTHFIYYAH, ANGGRAINI
; Regina Putri, Frestiany
; Ratri Sukmaningsih, Wahyu
; Syarry Handoko, Anggraini Luthfiyyah
; Regina Putri, Frestiany
; Ratri Sukmaningsih, Wahyu
MEDIKA TRADA : Jurnal Teknik Elektomedik Polbitrada
Vol 7
, No 1
(2026)
The implementation of the Hospital Management Information System (SIMRS) is an important part of supporting fast, accurate, and integrated health services. Sebelas Maret University Hospital has implemented the Techno Medic application to support Electronic Medical Records (EMR) in outpatient services. This study aims to determine the implementation of SIMRS based on the HOT-Fit approach, which includes Human, Organization, Technology, and Benefit aspects. The study used a qualitative descriptive...
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Evaluating Behavior-Driven Metrics in Gamified Hybrid Environments: A Structural Analysis Approach
Henka Bayu Seta
; Zatin Niqotaini
; Sarika Afrizal
; Theresiawati
; Artika Arista
; Rapolo Joshua Napitupulu
; Muhammad Ibrahim Al Farisi
Despite the widespread adoption of gamification in higher education, a significant research gap remains regarding the structural pathways through which specific game elements influence psychological drivers and academic success in hybrid settings. This study addresses this by evaluating the impact of badges, points, progress bars, and leaderboards on student motivation and outcomes using a quantitative approach with a sample of 437 university students in Indonesia. Data were analyzed using Parti...
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A data analytics driven digital supervision model for enhancing school counselors’ competencies in the era of technological transformation
This study addresses the need to enhance school counselors’ professional competencies through innovative supervision approaches in the era of digital transformation. The study aimed to develop and validate a data analytics-based digital supervision model for school counseling using a mixed-methods design. The quantitative phase involved 150 school counselors whose competencies were measured using a validated scale (Cronbach’s ? = .89). Results showed a significant increase in competency scores f...
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Quantitative Modeling of Change Order Impacts on Cost and Time Overruns in Indonesian Toll Road Infrastructure Projects
Change Orders (COs) are a major challenge in toll road infrastructure projects, often causing cost and time overruns. This study aims to identify key CO drivers and quantify their impacts on project performance in Indonesian toll road projects. A mixed-methods approach was applied, involving qualitative interviews with 35 experts (project managers, consultants, contractors) and quantitative surveys from 75 respondents covering 20 projects implemented between 2015 and 2023. Data analysis employed...
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Camera-Based Smart Mirror with Machine Learning for Postural Analysis: System Development and Reliability Evaluation
Early postural assessment using camera-based systems remains technically challenging due to variability in user positioning and limited evaluation of measurement repeatability. This study presents the development and repeatability evaluation of a smart mirror system for automated postural analysis using pretrained pose estimation and rule-based geometric classification. The system consists of a fixed camera mounted above a mirror and a connected computing device for real-time processing and visu...
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A CIA-based Sustainable Security Risk Mitigation Model for E-Certificate Systems
Suharsono, Teguh Nurhadi
; Choi , John
; Agusiady , Raden Ricky
; Saepudin, Didin
; Sukadwilinda
; Purwanto, Heri
; Savitri , Peti
; Munastha, Ketut Abimanyu
E-certificates are increasingly adopted across sectors, yet existing studies have not developed an integrated risk mitigation model that combines CIA-based sustainable security with operational and stakeholder perspectives. Current frameworks primarily address isolated technical risks or focus on general PKI security, leaving a gap in holistic modeling tailored to end-to-end e-certificate implementation. This study addresses this gap by proposing a Sustainable Security Risk Mitigation Model for...
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From wisdom to life satisfaction: Unpacking the mediating role of gratitude
Adolescents’ life satisfaction is an important indicator of subjective well-being and has been associated with better mental health and academic adjustment. This study examined the effect of wisdom on life satisfaction among high school students and tested gratitude as a mediator of this relationship. A quantitative cross-sectional design was employed using simple mediation analysis (PROCESS Macro Model 4). The participants were 544 high school students in Semarang, selected through random sampl...
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