Erick Paulus
Universitas Padjadjaran

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The use of mobile-assisted virtual reality in fear of darkness therapy Erick Paulus; Mira Suryani; Puspita Adhi Kusuma Wijayanti; Firdaus Perdana Yusuf; Aulia Iskandarsyah
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 1: February 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v17i1.11614


Fear of darkness is a common psychological problem that may extent to a specific phobia if it is not treated well. Several intervention techniques related to fear and phobia using actual exposure therapy have been studied for decades, however, there were some constraints emerged when the therapist provides a real environment to overcome the patient's reaction to his/her specific fear. Virtual reality (VR) technology is an innovative tool providing a more immersive, secure, personal, and controlled virtual environment. Therefore, we developed a novel framework for treating the fear of darkness named Mobile-assisted Virtual Reality (MAVR). The purpose of this study was to evaluate the use of MAVR to treat fear of darkness based on usability, time consumption and its ability to decrease fear. We used the GOMS model as an interaction guidance between human and computer which aimed to facilitate the process of re-learning in mindset change and individual’s behavioral toward situation of darkness and night. Therefore, a comprehensive evaluation was conducted to measure the efficacy of the MAVR. We developed the usability assessment checklist to assess the feasibility and acceptability of the MAVR, and fear of darkness thermometer to measure the degree of fear. The Wilcoxon Signed Rank Test showed that the fear of darkness was significantly decreased after participants received the MAVR therapy (z=-3.550, p-value<0.001). We found that the MAVR was very useful, easy to be used and acceptable for participants. In conclusion, this study highlights the efficacy of Mobile-assisted Virtual Reality in treating specific fear, and it seems that Virtual Reality technology has a promising benefit to be implemented for other fear or specific phobia and also used in other psychological treatment.
A Framework to Ensure Data Integrity and Safety Erick Paulus; Mochamad Azmi Fauzan
Data Science: Journal of Computing and Applied Informatics Vol. 2 No. 1 (2018): Data Science: Journal of Computing and Applied Informatics (JoCAI)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1079.131 KB) | DOI: 10.32734/jocai.v2.i1-90


The technology development allows people to more easily communicate and convey information. The current communication media can facilitate its users to send and receive digital data, such as text, sound or digital image. But in terms of security, communications media not always ensure the confidentiality and authentication of data traffic. Most people rely solely on the security provided by the communications media providers in securing their data, which is essentially still inadequate. This paper presents the development of a data security framework by applying the principles of cryptography and digital signatures, such as authenticity, integrity, and data confidentiality. The application is designed using the SHA-256 algorithm as digital signature, AES algorithm as file encryption, and RSA algorithm as asymmetric key in digital file distribution and signature. Then, several simulation testing was performed to ensure the robustness of the framework. Furthermore, we also evaluated the speed of framework based on CPU and memory capacity. Based on the experiment, our proposed framework can be a reliable solution for securing data in data transaction
Implementasi Cell ID dan GPS dalam Pencarian Lokasi Fasilitas Kesehatan Terdekat Fahmi Candra Permana; Diah Chaerani; Erick Paulus
Jurnal Matematika Integratif Vol 13, No 1: April, 2017
Publisher : Department of Matematics, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1137.587 KB) | DOI: 10.24198/jmi.v13.n1.11675.55-66


Cell ID dan GPS merupakan layanan berbasis lokasi dan teknologi yang banyak membantu manusia dalam hal navigasi dan penemuan tempat-tempat yang bermanfaat di sekitarnya. Salah satu komponen utama dari teknologi ini dapat diterapkan pada telepon seluler. Dalam penelitian ini, dirancang sebuah aplikasi dengan memanfaatkan teknologi berdasar implementasi dari Cell ID dan GPS untuk mengetahui posisi user dan lokasi fasilitas kesehatan terdekat di sekitar user dan penggunaan JSON sebagai sarana untuk menyimpan database pada web. Aplikasi ini diimplementasikan pada telepon seluler dengan sistem operasi Android. Hasil dari penelitian ini menunjukkan bahwa Cell ID dan GPS dapat diimplementasikan dengan baik dengan memanfaatkan akses Internet dan Google Maps untuk mencari fasilitas kesehatan terdekat dan menggambarkan daerah sekitar user.