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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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Digital empathy in online communication: A systematic literature review
The rapid development of digital technology has transformed how individuals communicate in modern society, reducing nonverbal cues essential for emotional understanding. Consequently, digital empathy defined as the ability to understand and respond to others’ emotions through digital media has gained increasing attention. This study aims to synthesize research trends and challenges related to digital empathy in online communication through a Systematic Literature Review (SLR) of peer-reviewed ar...
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Microencapsulation of Phycocyanin from Spirulina platensis by Freeze-Drying: Optimization of Maltodextrin–Soy Protein Matrices for Enhanced Stability and Antioxidant Functionality
Marlina, Dian
; Saputra, Ryan Werytama
; Aji Prasetyo, Takad Bagas
; Muhamad Ansory, Hery
; Aisiyah, Siti
; Purwaningsih, Desi
Phycocyanin, a natural blue pigment from Spirulina platensis, exhibits strong antioxidant activity but is highly unstable under light, heat, and pH variations, limiting its practical applications. This experimental study addresses the lack of systematic optimization data on maltodextrin–soy protein isolate (SPI) wall matrices for phycocyanin microencapsulation via freeze-drying. Phycocyanin was extracted using phosphate buffer and encapsulated at different maltodextrin:SPI ratios (9:1, 8:2, and...
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Synergistic cultures for resilient mercury bioremediation in ASGM leveraging microbial interactions for sustainable pollutant removal
The widespread use of mercury (Hg) in artisanal and small-scale gold mining (ASGM) necessitates effective bioremediation strategies. This study evaluated the mercury reduction capabilities of two bacterial strains, Bacillus subtilis and Pseudomonas aeruginosa, using real-world ASGM liquid waste. In a seven-day laboratory-scale experiment, we assessed the performance of single and mixed bacterial cultures under varying pH conditions. Our results show that B. subtilis was particularly effective, a...
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Financial Management Practices Driving Sustainable Community Empowerment in Somongari Tourism Village
This study examines the strategic role of financial management in empowering the community of Somongari Tourism Village, Purworejo Regency, which serves as a model of Community-Based Tourism (CBT). Despite its rich natural and cultural assets, the village faces challenges in sustaining tourism growth due to fluctuating visitor numbers, limited services differentiation, and uneven income distribution. The research aims to evaluate how transparent and participatory financial practices can strength...
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Optimization of Coconut Fiber and Styrofoam Composition in Concrete to Improve Strength and Sound Absorption
Purwanto
; Firmawan, Ferry
; Ahmad, Fahrudin
; Purwanti, Hani
; Husna, Aimmatul
; Darus, Nadirah
; Haron, Zaiton
; Yahya, Khairulzan
This study aimed to evaluate the effect of coconut husk and Expanded Polystyrene (EPS) composition on the mechanical and acoustic properties of lightweight concrete. The research was conducted experimentally using a two-way factorial design with coconut husk variations of 0%, 0.5%, 1%, 1.5%, and 2% of cement weight and EPS variations of 0%, 10%, 20%, and 30% of coarse aggregate volume. A total of 20 mix variations (5 coir levels × 4 EPS levels) were prepared with three replications for each test...
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Pengaruh Manajemen Organisasi Tim terhadap Kinerja Atlet dalam Lingkungan Olahraga Perguruan Tinggi
Jendela Olahraga
Vol 11
, No 01
(2026)
Penelitian ini bertujuan untuk mengkaji pengaruh manajemen organisasi tim terhadap kinerja atlet dalam konteks olahraga perguruan tinggi. Penelitian menggunakan pendekatan kuantitatif dengan desain survei. Sampel penelitian melibatkan 120 atlet mahasiswa yang berasal dari tiga perguruan tinggi negeri dan dipilih menggunakan teknik purposive sampling. Instrumen penelitian terdiri atas kuesioner manajemen organisasi tim yang mencakup aspek perencanaan, koordinasi, kepemimpinan pelatih, dan komunik...
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Perlindungan Anak Berbasis Hak di Ruang Digital: Systematic Literature Review terhadap Risiko dan Strategi Perlindungan
Nursyahbani, Coryza
; Purwadi, Purwadi
; Nursyahbani, Coryza
; Pusari, Ratna Wahyu
; Purwadi, Purwadi
Paudia
Vol 15
, No 1
(2026)
Pesatnya perkembangan media digital meningkatkan risiko pelanggaran hak anak, seperti cyberbullying, paparan konten berbahaya, eksploitasi daring, dan pelanggaran privasi. Kondisi ini menegaskan urgensi perlindungan anak di era digital yang belum sepenuhnya terintegrasi dalam kebijakan dan praktik. Penelitian ini bertujuan mengidentifikasi risiko media digital terhadap hak anak, menganalisis strategi perlindungan, serta memetakan peran negara, keluarga, pendidik, dan platform digital. Metode yan...
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EFL Teacher’s Perspectives on Integrating AI into Reading Comprehension Teaching in Papua
ETERNAL: English Teaching Journal
Vol 17
, No 1
(2026)
This study explores EFL teachers’ perspectives on integrating Artificial Intelligence (AI) technologies into reading comprehension instruction in Papua, Indonesia. This study employed a quantitative descriptive survey, conducted with 17 teachers from elementary, junior high, and senior high schools. Data were collected through an online questionnaire and analyzed using descriptive statistics. Findings showed that teachers were generally familiar with AI and express confidence in its use, particu...
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Pemberdayaan Masyarakat Berbasis Ekonomi Kreatif melalui Workshop Pengolahan Minyak Jelantah di Kelurahan Pesantren Kota Semarang
Yuniarti, Nur Atika
; Atika Mutiarachim
; Ryan Arya Pramudya
; Ery Fatarina Purwaningtyas
; Eleny Sania Putri
Jurnal Suara Pengabdian 45
Vol 5
, No 1
(2026)
Tantangan utama yang dihadapi warga Kelurahan Pesantren, Kota Semarang adalah belum optimalnya pengelolaan limbah lingkungan rumah tangga, khususnya minyak jelantah, yang berpotensi menimbulkan pencemaran dan masih kurang dimanfaatkan secara ekonomi. Program ini bertujuan untuk meningkatkan kesadaran lingkungan, keterampilan kewirausahaan, dan kemandirian ekonomi masyarakat dengan inovasi ekonomi kreatif. Tahapan pelaksanaannya meliputi observasi dan identifikasi masalah, perencanaan program par...
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