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Menampilkan 1–10 dari 517 artikel
Lightweight Dual-Layer Chaotic Image Encryption Using Arnold Cat Map and Henon Zigzag Diffusion
Umam, Chaerul
; Abdussalam, Abdussalam
; Nursetyo, Arif
; Sugiarto, Bambang
; Islam, Husain Md Mehedul
Digital image transmission over open networks raises significant security concerns due to the high correlation and predictable statistical properties of image data. Existing chaotic encryption schemes based on Arnold Cat Map (ACM) and Henon mapping often suffer from high computational cost, parameter sensitivity, or reliance on complex multi-stage designs. To address these limitations, this study proposes a lightweight dual-layer chaotic image encryption framework that integrates ACM-based pixel...
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Technical and Operational Evaluation of SRT-Based IP Contribution for Live Television Broadcasting
Secure Reliable Transport (SRT) is increasingly used for IP-based live-broadcast contribution because it enables low-latency delivery, packet recovery, and encrypted transport over public networks. However, its practical value depends on measurable performance under real operating conditions and disciplined operational control. This study evaluates the implementation of SRT in live football league and volleyball broadcasts using bounded case evidence from operational records, questionnaires, and...
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The The Relationship Between Workload, Work Stress, Work Environment, and Management Role on Firefighter Performance
Journal of Occupational Health, Hygiene and Safety
Vol 4
, No 1
(2026)
Employee performance is an important factor in determining the success of an organization in achieving its established goals. At the Semarang City Fire Department, employees are required to work quickly, accurately, and responsively in emergency situations, making optimal performance essential. However, high job demands, psychological pressure, work environment conditions, and organizational culture that have not been fully optimized may affect employee performance. In addition, firefighting is...
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Application of LSTM and MODIS Satellite Imagery for Forecasting Oceanographic Dynamics and Identifying Potential Fishing Zones in the Sunda Strait
Khalifa, Muta Ali
; Yudono, Muchtar Ali Setyo
; Prabowo, Nico Wantona
; Santoso, Prakas
; Rachmanto, Farhan
; Prasetia, Aditya Teguh
This study integrates AQUA-MODIS satellite imagery with the Long Short-Term Memory (LSTM) model to forecast oceanographic dynamics and identify Potential Fishing Zones (PFZ) in the Sunda Strait. The dataset spanning from January 2014 to December 2024 was used for model training, while forecasts for January–August 2025 were validated using in-situ observations from six sampling stations. The model predicted sea surface temperature (SST), chlorophyll-a concentration, and ocean current speed, with...
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Analysis of the Efficiency of Universal Bacterial Filters with the Adapter Port on the GE Carescape R860 Ventilator Using the Uncertainty Method
Pramusinto, Dian Bambang
; Dwi Prasetyowati, Sri Arttini
; Pramusinto, Dian Bambang
; Dwi Prasetyowati, Sri Arttini
MEDIKA TRADA : Jurnal Teknik Elektomedik Polbitrada
Vol 7
, No 1
(2026)
The frequency of filter replacement that must always be replaced increases the hospital's budget requirements for consumables (BHP). An alternative solution is to replace the original filter with a universal filter with the addition of ports so that it can be compatible on the ventilator machine. This study aims to analyze the effect of using universal bacterial filters modified with ports to be compatible with ventilators. The research was conducted with a quantitative approach and internal and...
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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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Repositioning school guidance and counseling in Indonesia's free nutritious meals program: Toward a safe, healthy, and psychosocially supportive school ecosystem
The Free Nutritious Meal Program (Program Makan Bergizi Gratis or MBG) is a national policy initiative in Indonesia aimed at improving students’ nutritional status, learning readiness, and long-term human resource development. However, school meal programs should not be understood merely as food distribution mechanisms, as shared eating activities in schools also involve educational, social, and psychosocial dimensions. This article aims to reposition school guidance and counseling as a psychoso...
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The Effectiveness of Combined Hatha Yoga and Tandem Walking Exercise on Balance among Older Adults in Malang
Rosidah, Nikmatur
; Ameylia, Ananda Viona
; Yuliadarwati, Nungki Marlian
; Prastowo, Bayu
; Ningrum, Annisa Salsabila Budi
; Rizal, Fahmi
; Acharya, Anup
; Prasetyo, Dwi Agung
FISIO MU: Physiotherapy Evidences
Vol 7
, No 2
(2026)
Introduction: Age-related declines in muscle strength, proprioception, and postural control contribute to balance impairment among older adults and increase the risk of falls. Non-pharmacological interventions, particularly structured physical exercise combining relaxation and balance training, have been recommended to improve balance performance. This study aimed to evaluate the effect of a combined Hatha Yoga and Tandem Walking Exercise program on balance among older adults in Malang. scores....
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The Correlation Between Physical Activity and Quality of Life Among Physiotherapy Students at Muhammadiyah University of Malang, Class of 2022
Rafli Arrahim, Muhammad
; Rosidah, Nikmatur
; Baruna, Arys Hasta
; Muthohiry, Muhammad Raiz
; Prastowo, Bayu
; Rizal, Fahmi
; Prasetyo, Dwi Agung
FISIO MU: Physiotherapy Evidences
Vol 7
, No 2
(2026)
Introduction: Physical activity is any activity that requires physical effort and can increase heart rate and breathing. Physical activity plays a role in maintaining physical fitness, strengthening the heart and lungs, reducing the risk of chronic diseases, and helping to improve mood, reduce stress, and enhance quality of life. This study aims to determine the relationship between physical activity and quality of life among students in Malang. Methods: This study employed a correlational desig...
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Technology-Driven Digital Marketing Strategies and their Impact on E-commerce Purchase Decisions
The rapid growth of internet penetration and digital platforms has transformed marketing practices in Indonesian Vocational Training Centers (LPKs). However, inconsistent outcomes in trainee recruitment highlight a gap in understanding the effectiveness of digital marketing in this context. This study aims to examine the effect of digital marketing on purchase intention, with consumer engagement as a mediator and consumer trust as a moderator. Data were collected from 384 trainees in East and We...
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