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Journal : Jurnal Riset Mahasiswa Matematika

Dinamika Model Matematika Reaksi T-Helper Tribhuana, Chilvia; Pagalay, Usman; Susanti, Elly
Jurnal Riset Mahasiswa Matematika Vol 1, No 5 (2022): Jurnal Riset Mahasiswa Matematika
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/jrmm.v1i5.14477

Abstract

T cells are a major component of the human immune system. These T cells have a number that varies depending on the body's immune response when fighting bacteria or viruses. However, the condition of excess immune cells in the body can also be dangerous. Theoretical studies on the dynamics of T-Helper cells in the body are needed to get the right simulation in treating patients without conducting medical tests on every patient on a daily basis. This study discusses the dynamics of the mathematical model of the T-Helper reaction with the influence of antigen and IL-2. From this study, two equilibrium points were obtained, namely disease-free equilibrium and endemic equilibrium. The use of parameter values from the experimental results shows that the disease-free equilibrium point is locally unstable, while the endemic equilibrium point is locally stable. The numerical simulation showed that the antigen increased from 1st day to the highest value at 0.926 on the 11th day until on the 20th day it started to be constant towards at the value  which is the antigen could be activate the resting T-Helper. The process of activating T-Helper, create IL-2 which can stimulating the proliferation and activity of T-Helper cells, so they can divide the activated cell of T-Helper into two memory cells.
Pengamanan Pesan Menggunakan Algoritma One Time Pad dengan Linear Congruential Generator sebagai Pembangkit Kunci Maghfiroh, Jamilatul; Turmudi, Turmudi; Susanti, Elly
Jurnal Riset Mahasiswa Matematika Vol 2, No 3 (2023): Jurnal Riset Mahasiswa Matematika
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/jrmm.v2i3.16770

Abstract

Cryptography is one method that can be used to secure a message by hiding the original text. This study uses the One Time Pad (OTP) algorithm to secure a message and the Linear Congruential Generator (LCG) algorithm as a key generator. The purpose of this study is to describe the key generation process using the LCG algorithm, the encryption and decryption process of messages using the OTP algorithm. The process of encrypting and decrypting messages using the OTP algorithm requires a key as long as the original message and must be random. Therefore, a random number generation process is carried out using the LCG algorithm before encoding the message. The results of this study are the LCG algorithm is able to build dynamic keys with the condition that the length of the period must be greater than or equal to the length of the plaintext. The process of encoding messages using the OTP algorithm has a high level of security because the number of characters used is more and the process of sending messages is easier. The resulting ciphertext is a very random and unreadable message that is difficult to decipher.
Co-Authors Aan Putra Abd. Rasyid Syamsuri Afriani, Miratia Agung Prastio Agus Nugroho Agussabti Agussabti Agussabti Agussabti Agussabti Agussabti Agussabti Agusssabti Agustina Arida Ahmad Humam Hamid Akbar, Lalu Ajimuliardi Akhmad Baihaqi Alfaridzi, Tegar Alfatin Samay Alghar, Muhammad Zia Amirul Fuadi Andy Wijaya Angga Dwi Mulyanto Ani Muharni Astuti Astuti - Aurum Sahlida Ayulia Yunara Azra Algifari Bahasa Indonesia, Bahasa Indonesia Budi Darma Butarbutar, Novita Candra, Vivi Christine D. Nainggolan Cut Anly Tritama Damanik, Nuraini Yunita Damanik, Zuhari Dani Ansari Darwin Lie Debi Eka Putri Dinaroe Dinaroe Diswandi Nurba, Diswandi Dwi Suheriyanto Edi Saputra EFENDI Efendi Efendi Effendi, Helwin Elvira Iskandar Ernest Grace Eryd Saputra Eva Amalia F Silaen, Musa fendiyanto, fendiyanto Furqan Nazir Huda, Nur Fuad Kholiqul Ilham Syahputra Indra Indra Indra Indra Indra Indra Ira Manyamsari Irdavani, Ananta Irfan Zikri Jannah, Akyunnul Juan Anastasia Putri Jubi, Jubi Julyantri, Julyantri Kamaruzzaman, Suraiya Khairul Anwar Khairul Azwar Kiki Andriyan Lailaturrosidah, Azah Lailiyah, Munirotul Lase, Agustian Zisokhi Laswadi Laswadi Lenny Dermawan Sembiring Luh Putu Ratna Sundari Lukman Hakim M. Aflah Fauzan Siregar Magfiroh, Norma Hasanatul Magfiroh Maghfiroh, Jamilatul Maqfirah Van Tawarniate Marhayati Marto Silalahi Mira Chazinatuddini Muhammad Akram Muhammad Akram muhammad rizki aulia Muji Burrahmad Mujiburrahmad Mujiburrahmad Muliadi Muliadi Musa Fernando Silaen Mustafa Usman Mutiara Arlisyah Putri Utami Nafisatul Qur'ani, Fauziyah Nainggolan, Pinondang Naufal Mutawakkil Nelly Ervina Nusantara, Duano Sapta Peggi Epaga Purba, Olimvia Agus Santi Purba, Rosanna Putri, Risty Angelia Qur'ani, Fauziyah Nafisatul Raida Agustina Ratu Ilma Indra Putri Risty Angelia Putri Robert Tua Siregar Romano Romano Ruth Tridianty Sianipar Safrida Safrida Safrida Siahaan, Yansen Sianipar, Lasmaria Ulan Sari Silaban, Lisda Silitonga, Hery Pandapotan Silvia Zahara Siregar, Kholizah Aryati Siregar, Liper sisca Sofyan Sofyan Sofyan Sri Harini Suci Lestari Suci, Indah Tri Suherman Suherman Supiarmo, M. Gunawan Supitriyani, Supitriyani Suraiya Kamaruzzaman Suyanti Kasimin T. Makmur Tarigan, Parman Tarranita Kusumadewi Tasyarah Tasyarah Teuku Adian Makmur Rizqullah Thoyyibah, Rifqoh Tribhuana, Chilvia Turmudi Ulfa Mifthahurrahmah Usman Pagalay Utami, Denok Andri Waliyatul Hamimiy Wirananda, Henny Andriyani Zikri, Irfan Zulkardi Zulkardi