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Metaheuristic Optimization Stacking Application for Rainfall Classification: A Comparative Study
Accurate rainfall classification plays a vital role in effective meteorological forecasting, agricultural planning, and also to avoid natural disasters. However, standard classification models often exhibit unstable performance. This study evaluates the effectiveness of an Ensemble Stacking framework enhanced with Optimized Swarm Based and Metaheuristic method such as Artificial Bee Colony (ABC) and Cuckoo Search (CS) optimization algorithms to improve prediction reliability. The proposed approa...
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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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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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The Impact of Screen Time Duration and Eye Rest Habits on Students of Muhammadiyah 4 High School, Depok City in 2024
Jurnal Kesehatan
Vol 19
, No 1
(2026)
Pendahuluan: Kelelahan mata umum terjadi di kalangan siswa karena penggunaan perangkat elektronik seperti smartphone yang berkepanjangan. Penelitian ini bertujuan untuk mengidentifikasi faktor-faktor yang berkontribusi terhadap keluhan kelelahan mata di SMA Muhammadiyah 4 Kota Depok, dengan fokus pada hubungan antara faktor individu, perangkat digital, dan lingkungan. Metode: Dalam penelitian ini, variabel dependen adalah kelelahan mata dan variabel independen adalah postur tubuh saat menggunaka...
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The Effect of Service Quality on the Satisfaction of Bpjs Patients in the Outpatient Installation of Lawawoi Health Center, Sidenreng Rappang Regency
Jurnal Kesehatan
Vol 19
, No 1
(2026)
Pendahuluan: Kualitas layanan sangat penting untuk kepuasan pelanggan, khususnya di bidang layanan kesehatan, karena kualitas layanan berdampak pada persepsi dan kepercayaan pasien. Fakta tersebut menyoroti permasalahan seperti staf yang tidak ramah, perilaku yang kurang ramah, perlakuan yang dirasakan tidak setara, tidak adanya staf yang melakukan konseling, dan terbatasnya fasilitas ruang tunggu. Metode: Pendekatan yang digunakan adalah pendekatan kuantitatif dengan desain studi cross-sectiona...
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Maternal and Child Characteristics, Stimulation Practices, and Their Association with Stunting: A Cross-Sectional Study
Wijayanti, Anisa Catur
; Isnaeani, Farida Nur
; Wulandari, Windi
; Werdani, Kusuma Estu
; Puspita, Widya Galih
; Pratiwi, Septiani Cipta
; Sahda, Renaya Amelia
Jurnal Kesehatan
Vol 19
, No 1
(2026)
Pendahuluan: Stunting adalah bentuk malnutrisi kronis pada masa kanak-kanak yang mengganggu pertumbuhan fisik, perkembangan kognitif dan motorik, serta produktivitas jangka panjang. Puskesmas Trucuk II di Kabupaten Klaten memiliki prevalensi stunting tertinggi di kabupaten tersebut (22,7%). Penelitian ini mengkaji perbedaan usia anak, usia ibu, stimulasi, dan perkembangan anak dalam kaitannya dengan kejadian stunting. Metode: Penelitian potong lintang dilakukan di wilayah kerja Puskesmas Trucuk...
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When the fear of being left behind becomes a burden: A correlational study between fear of missing out and psychological distress among millennials
Life in the modern era has been characterized by increased social media use and heightened psychological pressures among millennials, including anxiety, stress, and depression. Fear of missing out (FoMO), defined as the apprehension of being left behind from others’ social experiences, may contribute to elevated psychological distress. This study aimed to examine the relationship between FoMO and psychological distress among millennials. This study employed a quantitative approach with a bivaria...
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The role of self-worth in mediating the influence of fairness on psychological wellbeing of senior high school students
This study examines the role of self-worth as a mediator in the relationship between fairness and psychological wellbeing among senior high school students. A total of 400 senior high school students from Central Java participated in this research through an online survey utilizing the Student Fairness Scale, Self-Worth Scale, and Psychological Wellbeing Scale instruments. Data were analyzed using structural equation modeling (SEM). The results demonstrated that fairness had a significant positi...
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Student academic hardiness: descriptive analysis and its relationship with individual characteristic
Harahap, Ade Chita Putri
; Indreswari, Henny
; Hidayah, Nur
; Setyowati, Arbin Janu
; Ramli, M
; Makhsin, Mardzelah Binti
; Harahap, Dinda Permatasari
; Simarmata, Sari Wardani
This study aims to analyze students' academic hardiness and examine its differences based on individual characteristics as well as its relationship with academic achievement. This research employed a quantitative approach with a descriptive and correlational design. The participants consisted of 103 students selected using accidental sampling. Data were collected using a Likert-scale questionnaire measuring the dimensions of commitment, control, and challenge. Data analysis was conducted using d...
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