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All Journal JURNAL ILMU PERTANIAN Jurnal Eduscience (JES) INFOKUM Journal of Computer Networks, Architecture and High Performance Computing Instal : Jurnal Komputer
Leni Marlina
Universitas Pembangunan Panca Budi
Agriculture, Biological Sciences & Forestry Computer Science & IT Decision Sciences, Operations Research & Management Education Other

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Respon Pemberian Ekoenzim dan Pupuk Organik Cair Terhadap Pertumbuhan dan Produksi Bawang merah (Allium ascalonicum L) Najla Lubis; M. Wasito; Leni Marlina; Rosmaria Girsang; Hasril Wahyudi
AGRIUM: Jurnal Ilmu Pertanian Vol 25, No 2 (2022)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v25i2.10354

Abstract

Tujuan penelitian ini adalah untuk mengetahui respon akibat pemberian Ekoenzim (EE) dan pupuk organik cair (POC) terhadap pertumbuhan dan produksi bawang merah (Allium ascalonicum L.). Metode penelitian ini menggunakan Rancangan Acak Kelompok (RAK) faktorial terdiri dari 2 faktor. Faktor pertama adalah pemberian ekoenzim (EE) yang terbagi menjadi 4 taraf yaitu E0= (kontrol), E1 = 1%, E2= 2%, E3 = 3%. Faktor kedua adalah pemberian POC buah-buahan yang terbagi menjadi 4 taraf yaitu B0 = (kontrol), B1 = 1%; B2 = 2%, B3 = 3%. Parameter pengamatan adalah tinggi tanaman (cm), jumlah daun (helai), jumlah anakan, berat basah umbi per plot, berat kering Umbi per plot. Hasil penelitian menunjukkan bahwa pemberian EE berpengaruh tidak nyata pada semua parameter yang diamati, dimana perlakuan terbaik pada E1 = 1%. Pemberian POC buah-buahan berpengaruh tidak nyata pada parameter tinggi tanaman (cm), jumlah daun (helai), namun berpengaruh sangat nyata pada parameter jumlah anakan, berat basah umbi per plot (g) dan berat kering umbi per plot (g), dimana perlakuan terbaik pada pemberian B3 = 3%. Interaksi antara pemberian Eco enzyme dan POC Buah-buahan berpengaruh tidak nyata pada semua parameter yang diamati.
AN IMPLEMENTATION OF RECOGNITION LETTER AND NUMBER BASED ON MOBILE FOR EARLY CHILDHOOD KINDERGARTEN IT-AL FATIH Heni Wulandari; Suherman Suherman; Leni Marlina
INFOKUM Vol. 10 No. 5 (2022): December, Computer and Communication
Publisher : Sean Institute

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Abstract

An Early childhood education could be defined as all efforts in facilitated a development and learning of children from birth to six years of age through provision of various experiences and stimuli that are developing. Kindergarten (TK) IT AL Fatih is one of schools that educates early childhood, where the school is located at Pelaksanaan I street No.02 steet IV. At the school there is no means of learning children through interactive learning media, in learning to recognize letters and numbers the teacher still uses the lecture method so that the learning process to children can cause boredom and boredom. Interactive learning in the form of audio visual using mobile-learning technology is a learning system needed by early childhood to be responsive and encourage the emergence of teacher innovation and creativity in creating and developing a conducive educational climate in kindergarten IT AL Fatih. The implementation of activities uses an approach method by conducting direct socialization and explaining to teachers and children how the application of letter and number recognition in mobile-based early childhood can increase teacher productivity and increase children's interest in learning. The results of the evaluation during the activity process received very good responses, as evidenced by the questionnaire evaluation, 75% of which stated strongly agree (SS) and 25% stated agree (S).
Utilization of Data Analytics to Enhance Operational Efficiency in Manufacturing Companies Rendi Aprijal; Iqbal Wiranata Siregar; Andysah Putera Utama Siahaan; Leni Marlina
Journal of Computer Networks, Architecture and High Performance Computing Vol. 6 No. 2 (2024): Articles Research Volume 6 Issue 2, April 2024
Publisher : Information Technology and Science (ITScience)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/cnahpc.v6i2.3723

Abstract

In the digital era, manufacturing industries confront challenges like heightened global competition and intricate production processes, urging them to boost efficiency and productivity. Amidst these circumstances, Big Data emerges as a pivotal opportunity to enhance manufacturing performance. Big Data, characterized by vast volumes of data, utilizes advanced data mining to machine learning techniques for analysis. Data analytics, an interdisciplinary field, profoundly impacts manufacturing operations, enabling deeper insights into production processes. By analyzing production data, companies identify inefficiencies, streamline workflows, and enhance operational efficiency and productivity. Predictive maintenance through sensor data analysis prevents machine failures, while logistics data analysis optimizes supply chains and inventory management, reducing costs and enhancing competitiveness. However, implementing Big Data analytics presents challenges such as rapid data growth, diverse data sources, real-time insights, skill shortages, and data fragmentation. Overcoming these hurdles requires robust technology, skilled personnel, and effective data management strategies. Examples of Big Data analytics applications include customer behavior analysis by Amazon and Netflix, fraud detection in insurance, and urban mobility optimization. Success factors in data analytics implementation include effective data-driven communication, technology integration, and skill enhancement. In conclusion, implementing Big Data Analytics in manufacturing promises significant benefits in operational efficiency, product quality, and competitiveness. Overcoming challenges necessitates robust strategies and consideration of ethical and security issues, ensuring responsible data usage. With a deep understanding of Big Data Analytics, manufacturing companies can leverage this technology to achieve higher efficiency and competitiveness in the global market.
ANDROID-BASED ENDLESS RUNNER GAME LEARNING MEDIA INNOVATIONS TO IMPROVE STUDENTS' MATHEMATICAL LITERACY Leni Marlina; Aswandi Aswandi
JURNAL EDUSCIENCE Vol 13, No 1 (2026): Jurnal Eduscience (JES), (Authors from Australia, Taiwan, and Indonesia)
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jes.v13i1.7513

Abstract

Purpose –This study aims to evaluate the effectiveness of Android-based endless runner games as a learning medium for improving students' mathematical literacy through interactive gameplay that integrates mathematical problem-solving with entertainment elements.Methodology – This study employed a quasi-experimental pretest-posttest control-group design with 60 elementary students (grades 5-6), divided into an experimental (n=30) and a control (n=30) group. Data collection included a 20-item mathematical literacy test covering arithmetic, geometry, and measurement, plus feedback questionnaires measuring engagement and motivation—statistical analysis employed t-tests with normality and homogeneity of variance testing. Game quality was evaluated using the Game-based Learning Evaluation Framework.Findings – Results demonstrated significant improvements in mathematical literacy. The experimental group achieved substantially greater gains (30.8%) than the control group (6.1%), with statistical analysis confirming significance: t(58) = 5.67, p < .001, Cohen's d = 1.85, representing a considerable effect. Affective outcomes were equally positive: 90% of students reported increased confidence in mathematics, 85% expressed heightened interest, and overall engagement averaged 4.2/5.0, demonstrating the intervention's effectiveness in both cognitive and motivational dimensions.Contribution – This study contributes to validates situated learning and constructivist frameworks in mobile game contexts, demonstrating how seamless integration of learning content into gameplay mechanics enhances effectiveness. It offers educators an accessible, evidence-based mobile learning tool that simultaneously addresses achievement, engagement, and motivation—particularly valuable in resource-constrained educational settings
Implementasi Algoritma Vernam Cipher Untuk Keamanan Data Nilai Siswa Studi Kasus SMK Swasta Rahmat Islamiyah Medan Raihan Arya Dhani; Leni Marlina; Juliandri
Bahasa Indonesia Vol 18 No 01 (2026): Instal : Jurnal Komputer
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jurnalinstall.v18i01.474

Abstract

Student score data at SMK Swasta Rahmat Islamiyah Medan must be protected to prevent unauthorized access, modification, or data loss. To ensure confidentiality and data integrity, this research implements the Vernam Cipher encryption algorithm, which uses a one-time pad key and XOR operations to secure data. The algorithm provides strong protection when the key is used only once and kept confidential. By applying Vernam Cipher to the student score data process, all stored or transmitted information becomes unreadable without the correct key. This method helps reduce the risk of data leakage and manipulation. The results show that Vernam Cipher is effective in enhancing the security of student score data, ensuring a fair and reliable assessment process.  
Co-Authors Andysah Putera Utama Siahaan Aswandi Aswandi Hasril Wahyudi Heni Wulandari Iqbal Wiranata Siregar Juliandri M. Wasito Najla Lubis Raihan Arya Dhani Rendi Aprijal Rosmaria Girsang Suherman Suherman