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All Journal Jurnal Teknologi Pendidikan CESS (Journal of Computer Engineering, System and Science) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Jurnal Pendidikan dan Konseling JATI (Jurnal Mahasiswa Teknik Informatika) Jurnal Pengabdian kepada Masyarakat JEBDEKER: Jurnal Ekonomi, Manajemen, Akuntansi, Bisnis Digital, Ekonomi Kreatif, Entrepreneur Jurnal Teknik Informatika Unika Santo Thomas (JTIUST) Bureaucracy Journal : Indonesia Journal of Law and Social-Political Governance JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Sisfo: Jurnal Ilmiah Sistem Informasi Electron: Jurnal Ilmiah Teknik Elektro Seminar Nasional Riset dan Teknologi (SEMNAS RISTEK) International Journal of Information System and Innovative Technology
Agnes Irene Silitonga
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Kebiasan Sarapan, Asupan Zat Gizi Makro dan Status Gizi pada Remaja di Kota Medan Tyas Permatasari; Yatty Destani Sandy; Caca Pratiwi; Kanaya Yori Damanik; Erni Rukmana; Agnes Irene Silitonga
Jurnal Pendidikan dan Konseling (JPDK) Vol. 4 No. 6 (2022): Jurnal Pendidikan dan Konseling: Special Issue (General)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jpdk.v4i6.9739

Abstract

Pada usia remaja terjadi puncak pertumbuhan yang akan mempengaruhi perubahan komposisi tubuh, pertumbuhan yang pesat pada berat badan sehingga mempengaruhi kebutuhan gizi pada remaja. Kebiasaan makan yang tidak seimbang dan kurang aktifitas fisik serta gaya hidup sedentary merupakan faktor penyebab masalah gizi pada remaja. Tujuan dari penelitian ini adalah mengetahui hubungan antara asupan zat gizi, kebiasaan sarapan dan status gizi pada remaja di Kota Medan. Desain penelitian yang digunakan yakni cross- sectional study. Populasi pada penelitian ini yakni remaja di Kota Medan dan subyek sebanyak 145 diambil yang tersebar ketiga kelompok usia yakni remaja awal, pertengahan, dan akhir. Variabel yang diteliti pada penelitian ini yakni asupan zat gizi makro dan kebiasaan sarapan serta status gizi. Uji korelasi digunakan untuk menganlisis hubungan asupan zat gizi makro dan kebiasaan sarapan dengan status gizi. Hasil menunjukkan terdapat hubungan yang signifkan pada asupan zat gizi makro (energi, protein dan lemak) terhadap status gizi remaja (p<0.00), sedangkan asupan karbohidrat dan kebiasaan sarapan tidak memiliki hubungan yang signifikan (p>0.00).
Penerapan Penempatan dan Penentuan Kapasitas Kapasitor Pada Jaringan Distribusi Tegangan Menengah Kota Medan Menggunakan Electrical Transient Analysis Program Yoakim Simamora; Mega Silfia Dewy; Agnes Irene Silitonga; Muhammad Isnaini
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 4 No 2: Jurnal Electron, November 2023
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v4i2.57

Abstract

The characteristics of the electric power distribution system which is far from the generator and is generally radial in shape causes voltage drops. Voltage drops that are below tolerance cause a decrease in power quality on the consumer side of the distribution network. The methods used to improve voltage drops are network reconfiguration, distributed generator placement, and capacitor placement. In this study, placement capacitors were used to improve voltage profil in the Medan city medium voltage distribution network. Placement of capacitors and determination of capacitor capacity using Electrical transient analyzer program (ETAP). The initial condition of the medium voltage distribution network before the capacitor placement was carried out was an active power loss of 256.1 kW and a minimum voltage of 0,90 p.u. After placing the capacitors using the electrical transient analyzer program, it was obtained that the capacitors were placed on bus 18 and bus 34 with their respective capacitor capacities. 600 kVAR, after running the power flow, the power loss is 194.9 kW or reduced by 23.90% and the minimum voltage is 0,94 p.u or increased by 4.2%.
KLASIFIKASI FAKTOR PENYEBAB PERCERAIAN MENGGUNAKAN ALGORITMA C4.5 Silitonga, Agnes Irene; Darwita Arini Nasution; Histi Trifesi Naibaho; Selvia Apriani; Dewi Pika Lumban Bantu
METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi Vol. 11 No. 1 (2025): Volume 11 Nomor 1 Tahun 2025
Publisher : Universitas Methodist Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46880/mtk.v11i1.3584

Abstract

Divorce is a complex social phenomenon that has significant impacts on individuals and society. In Indonesia, divorce is a serious concern for the government and society because the divorce rate has continued to increase in recent decades. Understanding the factors that contribute to divorce is essential to developing effective prevention strategies. The objective of this study is to classify the factors of divorce in Indonesia using the C4.5 algorithm, an algorithm used for data mining in building decision trees. This study used divorce data from 20 provinces in Indonesia in 2023 with various factors causing divorce. Divorce data was obtained from the Central Statistics Agency of Indonesia. The research process includes data collection, data pre-processing, and application of the C4.5 algorithm to build a classification model. The results of the study showed that continuous disputes and quarrels, apostasy, and economy are the most significant factors in divorce. The research results are expected to be a reference for policy makers and marriage counselors in formulating appropriate interventions to reduce divorce rates. The findings of this study can also serve as a foundation for establishing more effective policies and interventions to reduce divorce rates and enhance family institutions in Indonesia.
SERANGAN MALWARE RANSOMWARE DALAM PERSPEKTIF TRANSNATIONAL CRIME Batu, Dewi Pika Lbn; Siahaan, Parlaungan Gabriel; Ramadhan, Taufiq; Silitonga, Agnes Irene
Bureaucracy Journal : Indonesia Journal of Law and Social-Political Governance Vol. 5 No. 2 (2025): Bureaucracy Journal : Indonesia Journal of Law and Social-Political Governance
Publisher : Gapenas Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53363/bureau.v5i2.615

Abstract

Nowadays, malware attacks are a national and global concern. Malware is software designed to harm or disrupt computers in some way including viruses, worms, Trojans, backdoors, ransomware and other malicious programs. Malware spreads and infects computer systems in various ways. In this research, the author focuses on studying ransomware. Ransomware is a form of malware that infiltrates computer devices to block access to information, basically blocking files and demanding ransom to give access back to the information. Hackers use the double extortion method, encrypting and stealing data with the threat of being published to the media if the ransom is not paid immediately. In recent years, ransomware attacks have occurred in Indonesia, such as the wannacry ransomware attack on Harapan Kita Hospital and Dharmais Hospital, the lockbit ransomware attack on Bank Syariah Indonesia and the ramsonware brain cipher attack on the National Data Center. Moreover, cybercrime is a transnational crime, which can be committed across national borders, so in this case regulation is also a major challenge in handling cybercrime cases.
Pengaruh Customer Relationship Management Terhadap Brand Awareness Gojek Silaban, Fanny Margaretha; Silitonga, Agnes Irene
Jurnal Ekonomi, Manajemen, Akuntansi, Bisnis Digital, Ekonomi Kreatif, Entrepreneur (JEBDEKER) Vol. 5 No. 2 (2025): Juni 2025
Publisher : Sekolah Tinggi Ilmu Ekonomi Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56456/f913da62

Abstract

Penelitian ini bertujuan untuk mengetahui seberapa besar pengaruh customer relationship management terhadap brand awareness Gojek. Dengan jumlah sampel sebanyak tujuh puluh responden secara keseluruhan, penelitian ini menggabungkan pendekatan kuantitatif dengan teknik purposive sampling. Penyebaran kuesioner dengan pengukuran skala Likert dan pengolahan statistik dengan menggunakan analisis regresi linier sederhana serta uji hipotesis dengan uji t dan koefisien determinasi-yang sebelumnya telah diuji dengan uji validitas, uji reliabilitas, dan uji asumsi klasik-menjadi metode pengumpulan data dalam penelitian ini. Hasil penelitian menunjukkan bahwa brand awareness Gojek dipengaruhi secara positif dan signifikan oleh customer relationship management.
Penentuan Kelayakan Penerimaan Bantuan Program Indonesia Pintar (PIP) menggunakan Algoritma C4.5 Agnes Irene Silitonga; Fihi Khoirani Sihotang; Vetric Styven Silaban; Teguh Fachri Fahros; Haryadi
CESS (Journal of Computer Engineering, System and Science) Vol. 10 No. 1 (2025): Januari 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/cess.v10i1.65099

Abstract

Program Indonesia Pintar (PIP) adalah inisiatif bantuan sosial yang diperkenalkan oleh pemerintah Indonesia untuk membantu siswa dari keluarga yang tidak mampu agar dapat melanjutkan pendidikan mereka tanpa kesulitan keuangan. Untuk memperoleh PIP, calon penerima bantuan harus termasuk dalam kategori layak sebagai penerima bantuan. Penelitian ini bertujuan untuk menentukan kelayakan penerima bantuan PIP di SDN 064999 Medan menggunakan algoritma C4.5 yang mana digunakan dalam membentuk pohon keputusan. Dalam penelitian ini, data yang digunakan adalah data siswa SDN 064999 Medan yang telah menerima bantuan PIP pada tahun 2023. Hasil penelitian menunjukkan bahwa algoritma C4.5 membentuk pohon keputusan yang baik untuk memprediksi kelayakan penerima bantuan PIP. Pohon keputusan tersebut menunjukkan bahwa atribut yang paling penting untuk memprediksi kelayakan penerima bantuan PIP adalah atribut pendapatan orangtua, status pekerjaan orangtua, dan jumlah tanggungan orangtua. Dari penelitian ini juga diperoleh 10 rules / aturan dalam penentuan kelayakan penerima bantuan PIP dengan algoritma C4.5. Hasil penelitian ini dapat digunakan untuk membantu dalam proses seleksi penerima bantuan PIP dan untuk memastikan bahwa bantuan tersebut tepat sasaran.
Analisis Rekonfigurasi Jaringan Menggunakan Particle Swarm Optimization untuk Meningkatkan Voltage Stability Index Simamora, Yoakim; Astrid, Erita; Immanuel, Michael Fritz; Waluyo, Bakti Dwi; Sembiring, Muhammad Aulia Rahman; Dewy, Mega Silfia; Silitonga, Agnes Irene; Ginting, Lisa Melvi
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 6 No 1: Jurnal Electron, Mei 2025
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v6i1.330

Abstract

The distribution system is a part of the power system that distributes electrical energy from the transmission network to medium and low voltage consumers, such as households, industrial consumers, and other facilities. Network reconfiguration is the process of restructuring and configuring the network by opening and closing switches to obtain the most optimal network configuration. In this study, the determination of switch opening and closing uses the binary particle swarm optimization (BPSO) algorithm, whose basic principle in finding optimal values is based on the social behavior of birds flocking or fish swimming together.. To measure voltage stability, this research presents the Voltage Stability Index (VSI), improving voltage stability using network reconfiguration with the BPSO algorithm. In this study, the VSI value will be compared with other algorithms, including the PSO algorithm from previous research, the Cuckoo Search Algorithm (CSA), the Harmony Search Algorithm (HSA), and the Modified Whale Optimization Algorithm (MWOA). The simulation results show that the BPSO algorithm can reduce power loss from an initial value of 202.7 kW to 139.3 kW, a decrease of 31.28%. Compared to other algorithms, BPSO has the best percentage reduction in power loss. The simulation results also show that the VSI value improved from an initial value of 0.2112 to 0.1520, an increase of 28%. In improving the VSI value in the IEEE 33 bus distribution system, the BPSO algorithm became the best algorithm for enhancing the VSI value.
Design of Mobile-Based Samosir Tour Hero Tourism Application Silitonga, Agnes Irene
International Journal of Information System and Innovative Technology Vol. 4 No. 1 (2025): June
Publisher : Geviva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63322/stcja626

Abstract

Samosir Tour Hero is an innovative platform designed to help tourists who want to explore Samosir Island easily, integrated, and informatively. The application offers detailed information on vehicle rentals, accommodations, and tourist destinations, and serves as a direct link between tourists and experienced local tour guides. With advanced features such as searching for nearby tourist locations, customized tour packages, and user reviews and recommendations, Samosir Tour Hero provides a comprehensive solution to enhance the tourist experience. The application has significant potential to boost the local economy, support tour guide activities, and strengthen the tourism sector in Samosir. With a user-friendly approach, simple yet effective interface design, and integration of transportation, accommodation, and tour guide services, Samosir Tour Hero aims to create a more personalized, comfortable, and memorable travel experience.
APLIKASI PEMBELAJARAN ALGORITMA BOUNDARY 4-CONNECTED DALAM IDENTIFIKASI JUMLAH SEL PADA CITRA SEL DARAH MERAH Lubis, Ali Akbar; Silitonga, Agnes Irene; Widarma, Adi
Jurnal Teknologi Pendidikan (JTP) Vol. 17 No. 2 (2024): Oktober - Jurnal Teknologi Pendidikan
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jtp.v17i2.65183

Abstract

Abstrak: Perkembangan teknologi yang semakin berkembang pesat, maka mengharuskan sistem Pendidikan juga dapat menyesuaikan dengan perkembangan teknologi tersebut. Salah satu pemanfaatan teknologi informasi dalam bidang pendidikan adalah media pembelajaran atau aplikasi pembelajaran. Aplikasi pembelajaran adalah suatu media pembelajaran dengan metode belajar yang memudahkan proses belajar, tidak membuat bosan dan sulit. Aplikasi pembelajaran dapat dibangun untuk memudahkan proses pembelajaran algoritma. Karena prosesnya yang kompleks dan membutuhkan waktu untuk memahami langkah-langkahnya. Penelitian ini bertujuan untuk membangun aplikasi pembelajaran algoritma Boundary 4-Connected dalam identifikasi jumlah sel pada citra sel darah merah. Algoritma Boundary 4-connected merupakan metode yang dapat digunakan untuk mengklasifikasikan region atau objek dalam citra digital. Hasil dari penelitian ini adalah aplikasi pembelajaran algoritma Boundary 4-Connected dalam identifikasi jumlah sel pada citra sel darah merah sudah layak untuk digunakan dan dapat dijadikan sebagai alternatif media pembelajaran untuk memahami cara kerja algoritma Boundary 4-Connected dalam identifikasi jumlah sel pada citra sel darah merah Kata Kunci: Boundary 4-Connected, aplikasi pembelajaran, citra, sel darah Abstract: The rapid development of technology requires the education system to be able to adapt to the development of this technology. One of the uses of information technology in the field of education is learning media or learning applications. Learning applications are learning media with learning methods that facilitate the learning process, do not make it boring and difficult. Learning applications can be built to facilitate the process of learning algorithms. Because the process is complex and takes time to understand the steps. This study aims to build a learning application for the Boundary 4-Connected algorithm in identifying the number of cells in red blood cell images. The Boundary 4-connected algorithm is a method that can be used to classify regions or objects in digital images. The results of this study are that the Boundary 4-Connected algorithm learning application in identifying the number of cells in red blood cell images is suitable for use and can be used as an alternative learning media to understand how the Boundary 4-Connected algorithm works in identifying the number of cells in red blood cell images. Keywords: Boundary 4-Connected, Learning application, image, blood cells
ANALISIS KOORDINASI RELE ARUS LEBIH PADA SISTEM PROTEKSI PEMBANGKIT LISTRIK TENAGA AIR JELOK PADA MATA KULIAH PROTEKSI SISTEM TENAGA LISTRIK Simamora, Yoakim; Dewy, Mega Silfia; Silitonga, Agnes Irene
JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Vol. 11 No. 1 (2024): Juni - Jurnal Teknologi Informasi dan Komunikasi dalam Pendidikan
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jtikp.v11i1.60288

Abstract

Abstrak: Pembaharuan setting rele arus lebih dan rele gangguan fasa ke tanah pada sistem proteksi di PLTA Jelok sangat diperlukan karena belum adanya pembaharuan nilai setting semenjak PLTA Jelok berdiri pada tahun 1935. Sistem proteksi yang cepat, handal, selektif dan ekonomis perlu ditingkatkan sesuai dengan nilai beban terbaru dan gangguan hubung singkat yang mungkin terjadi. Dalam melakukan setting rele tersebut diperlukan pemilihan nilai arus pickup dan waktu kerja yang sesuai dengan batas perhitungan dari parameter arus beban penuh, arus hubung singkat maksimum dan arus hubung singkat minimum. Kemudian koordinasi antar rele dapat dianalisa menggunakan kurva plot arus terhadap waktu pada program ETAP 12.6. Setting rele pada penelitian ini dinyatakan handal karena kurva terletak dalam batas aman yaitu di sebelah kanan garis arus beban penuh dan inrush transformator serta di sebelah kiri garis damage curve.  Kata Kunci: proteksi, rele, setting, koordinasi, kurva.  Abstract: Renewal setting of over current relay and ground fault relay in the PLTA Jelok™s protection system is important because there is no change in the setting value since PLTA Jelok stood in the 1935. Fast, reliable, selective and economical protection system needs to be improved according to the latest load values and short circuit that may occur. For setting these relays, the required selection of the pickup current value and the working time based on the calculation limit of the full load current, maximum short circuit current and minimum short circuit current. Then the coordination of relays can be analyzed using the time-current plot curve on ETAP 12.6 program. Relays setting of this research are reliable because the curve location is on the right of full load ampere line and transformer inrush and also on the left of damage curve.. Keywords: protection, relay, setting, coordination, curve.
Co-Authors Adi Widarma, Adi Akbar Lubis, Ali Ali Akbar Lubis Anisa Fitri Azmi, Aqilah Bakti Dwi Waluyo Batu, Dewi Pika Lbn Caca Pratiwi Chintia Ni Cinta Rizkia Zahra Lubis Darwita Arini Nasution Dewi Pika Lumban Bantu Enjelina Sinaga Erita Astrid Erni Rukmana Fihi Khoirani Sihotang Ginting, Lukas Hafiz, Fahrul Al-hamdi Haryadi Haryadi - Hastuti, Pebri Hidayatullah, Amar Histi Trifesi Naibaho Immanuel, Michael Fritz Immanuel, Michel Frits Jufri Darma Kanaya Yori Damanik Lisa Melvi Ginting Lumban Toruan, Anjel Monika Mega Silfia Dewy, Mega Silfia Melvi Ginting, Lisa Muhammad Isnaini Mutia Ardila Mutiara Agustina Nst Mutiara Akbar Nasution Nerva, Souza Al-Gibrani Nurdina Safitri Panjaitan, Bon Jovi Marselino Panjaitan, Gabriella Dominggoes Prayoga, Wira Pulungan, Annisa Fadhillah Ramadhan, Taufiq Ratu Evina Dibyantini Rizwinie, Khesya Sabila S, Muhammada Aulia Rahman Sari, Dwy Puspita Selvia Apriani Sembiring, Muhammad Aulia Rahman Sembiring, Samuel Siahaan, Parlaungan Gabriel Silaban, Fanny Margaretha Sinaga, Ferry Indra Sakti H Situmorang, Hasianna Nopina Teguh Fachri Fahros Thohiri, Roza Tumangger, Emya Malum Karina Tyas Permatasari Vetric Styven Silaban Yatty Destani Sandy Yoakim Simamora Yoakim Simamora Zada Annuri Nabila Zega, Elson