Journal La Multiapp https://www.newinera.com/index.php/JournalLaMultiapp <p>International <strong>Journal La Multiapp</strong> ISSN 2721-1290 (Online) and ISSN 2716-3865 (Print) includes all the areas of research activities in all fields Engineering, Technology, Computer Sciences, A<span class="tlid-translation translation" lang="en"><span class="" title="">rchitect</span></span>, Applied Biology, Applied Chemistry, Applied Physics, Material Engineering, Civil Engineering, Military and Defense Studies, Photography, Cryptography, Electrical Engineering, Electronics, Environment Engineering, Computer Engineering, Software Engineering, Electromechanical Engineering, Transport Engineering, Mining Engineering, Telecommunication Engineering, Aerospace Engineering, Food Science, Geography, Oil &amp; Petroleum Engineering, Biotechnology, Agricultural Engineering, Food Engineering, Material Science, Earth Science, Geophysics, Meteorology, Geology, Health and Sports Sciences, Industrial Engineering, Information and Technology, Social Shaping of Technology, Journalism, Art Study, Artificial Intelligence, and other Applied Sciences.</p> Newinera Publisher en-US Journal La Multiapp 2716-3865 Algorithm for Detecting Acoustic Traces of Neutrino Decay https://www.newinera.com/index.php/JournalLaMultiapp/article/view/1006 <p><em>In the articles "Doppler Effect and Acoustic Trails of Neutrinos" and "Neutrinos above the Earth's surface", published in the journal "LA MULTIAPP" on February 25, 2022 and July 12, 2023, I was forced to touch on the astrophysical topic when, in the flow of data obtained in the process Monitoring acoustic noise with a recorder with a Nyquist frequency of 5 kHz, at a depth of 1000 m in the earth's crust, events began to be frequently observed, the shapes and frequencies of which are not typical for seismology and geophysics, and had not previously been observed by anyone. The shape of some events was very similar to the traces of neutrino decay, such as the bipolar pulse and the “diamond”, recorded by acoustic detectors in seawater. Subsequently, when recording high-frequency acoustic processes on the Earth's surface with a recorder with a Nyquist frequency of 50 kHz, events were discovered that were even more similar to traces of neutrino decay. At the same time, a <strong>“strange”</strong> association of some events of unknown origin with the field extrema of the power electrical network of a large city was discovered. To avoid erroneous conclusions, it is necessary to understand the origin of this <strong>“strangeness”</strong>.</em></p> Askold Belyakov Copyright (c) 2024 Journal La Multiapp http://creativecommons.org/licenses/by-sa/4.0/ 2024-03-01 2024-03-01 5 2 44 51 10.37899/journallamultiapp.v5i2.1006 Bitcoin Price Prediction Model Development Using Convolutional Neural Network (CNN) and Long Short-Term Memory (LSTM) https://www.newinera.com/index.php/JournalLaMultiapp/article/view/1070 <p><em>Cryptocurrency is a virtual currency that can be used as a financial or economic standard, foreign currency reserve, and as a means of payment in some countries. The value that goes up and down every time is not easy to predict using logic. This is a problem for investors, besides that investors lack knowledge about the direction of crypto money movement. In addition, there is no system that can predict the price of Bitcoin, so this can cause investors to take the wrong steps in transactions and can cause losses. To avoid this risk, a system is needed that can predict bitcoin prices using data mining techniques, namely forecasting, the algorithms used are CNN and LSTM. The data used is Bitcoin closing price data from January 1, 2017, to April 26, 2023. The data is divided into 80% training data and 20% testing data. The prediction results are evaluated using MAPE which gets a MAPE value of 0.037 or 3.7% in the CNN algorithm, while the LSTM algorithm gets a value of 0.065 or 6.5%. The MAPE results of the two algorithms are in the MAPE range &lt;10%, so it can be said that the ability of the forecasting model is very good so that it can be used as a reference to determine the prediction of bitcoin prices in the next few periods.</em></p> Jonathan Cahyadi Amalia Zahra Copyright (c) 2024 Journal La Multiapp http://creativecommons.org/licenses/by-sa/4.0/ 2024-03-07 2024-03-07 5 2 52 62 10.37899/journallamultiapp.v5i2.1070 Backend Development of a Microservice-Based Website Application for Public Issue Reporting: Case Studyn in People Representative Council https://www.newinera.com/index.php/JournalLaMultiapp/article/view/1148 <p><em>This research introduces a web application aimed at advancing public issue reporting, promoting civic engagement, and expediting government responses. In collaboration with DPRD Jawa Barat, the research leverages Scrum methodology, social network features, and a microservice architecture to create an efficient communication platform between citizens and governmental bodies. The backend of the application, developed using the Go programming language, adopts a microservice architecture to enhance scalability and maintainability. The Scrum methodology facilitates an agile development process, ensuring adaptability to changing requirements and fostering continuous improvement throughout the project lifecycle. Additionally, the study explores the incorporation of social network features to encourage public engagement within the application. This integration allows citizens to connect, share, and discuss public issues, further enhancing the collaborative nature of the reporting platform. To ensure the seamless functionality of the microservices, API testing is employed, validating the reliability and consistency of the application's interfaces. Stress testing is also conducted to assess scalability and performance capabilities, identifying potential optimizations for the system's responsiveness under varying levels of load. In conclusion, this research presents an innovative solution for public issue reporting that combines microservice architecture, Scrum methodology, and social network features. The application's integration of these elements aims to not only streamline citizen-government communication but also create a dynamic platform that encourages active public involvement and collaboration.</em></p> Rizqullah Maziyah Isnaeni Nur Ichsan Utama Sinung Suakanto Copyright (c) 2024 Journal La Multiapp http://creativecommons.org/licenses/by-sa/4.0/ 2024-05-10 2024-05-10 5 2 63 77 10.37899/journallamultiapp.v5i2.1148