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Efektivitas Fermentasi Saccharomyces Cerevisiae dalam Media Gula Larut terhadap Volume Gas Karbon Dioksida yang dihasilkan: (Studi Eksperimen Menggunakan Balon sebagai Indikator di MI Jamiyatul Mubtadiin) Intan Nur Laila; Muhammad Suwignyo Prayogo; Iklila Muzayyanah
Jurnal Cakrawala Pendidikan dan Biologi Vol. 2 No. 2 (2025): Juni: Jurnal Cakrawala Pendidikan dan Biologi
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/jucapenbi.v2i2.264

Abstract

This study aims to determine how effective the fermentation process is carried out by the microorganism Saccharomyces cerevisiae in a soluble sugar medium, and how the sugar concentration affects the volume of carbon dioxide gas produced. The fermentation process was observed using a balloon as a simple indicator to measure the gas produced. The study was conducted with an experimental approach at MI Jamiyatul Mubtadiin, using three variations of sugar concentration: 10%, 15%, and 20%. The results showed that the higher the sugar concentration, the more carbon dioxide gas was formed. This shows that S. cerevisiae is able to utilize sugar efficiently to produce gas in the fermentation process. In addition to providing scientific understanding, this study is also associated with legal, religious, and philosophical values, thus providing a broader perspective on the application of fermentation in everyday life and education.
A Multi-Role Web-Based Customer Relationship Management (CRM) Information System Using the Agile Method at Telkom Witel Lampung–Bengkulu Muhammad Ikhsan; Intan Nur Laila; Rahayu Indah Lestari; Anindita Tri Mulia; Allwine
Jurnal Armada Informatika Vol 10 No 1 (2026): Juni
Publisher : STMIK Methodist Binjai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36520/jai.v10i1.282

Abstract

This study discusses the development of a web-based Customer Relationship Management (CRM) Information System at PT Telekomunikasi Indonesia, Tbk Witel Lampung-Bengkulu by integrating three main roles: Admin, Government Service, and Shared Service General Support. The main problem identified is that user data, regional data, project opportunities, marketing activities, customer data, customer interactions, and payment monitoring were still mostly managed manually using Microsoft Excel, which could cause data duplication, reporting delays, and input errors. This study applied the Agile method through planning, design, development, testing, deployment, and review stages. The system was developed using PHP with the Laravel framework, MySQL database, and Bootstrap to create a responsive user interface. The developed features include login, user management, regional data management, dashboard, Government Service project opportunity management, marketing activity records, customer data, interaction history, payment monitoring, filters, import, export, and user profile. System testing was conducted using Black Box Testing and User Acceptance Testing to ensure that each function met user requirements. The resulting system integrates administration, government sales, and customer collection processes into one platform, making data more centralized, monitoring faster, and reporting more accurate and well documented.