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All Journal JTAM (Jurnal Teori dan Aplikasi Matematika) Zero : Jurnal Sains, Matematika, dan Terapan JURNAL MathEdu (Mathematic Education Journal) Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Jambura Journal of Mathematics Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang JPK: Jurnal Proteksi Kesehatan Journal of Artificial Intelligence and Engineering Applications (JAIEA) Jurnal Ilmiah Teknik Informatika dan Komunikasi Regress: Journal of Economics & Management Innovative: Journal Of Social Science Research GEMBIRA (Pengabdian Kepada Masyarakat)
Kartika, Dinda
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The Locating Chromatic Number for Pizza Graphs Surbakti, Nurul Maulida; Kartika, Dinda; Nasution, Hamidah; Dewi, Sri
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol. 20 No. 2 (2023): Sainmatika : Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/sainmatika.v20i2.13085

Abstract

The location chromatic number for a graph is an extension of the concepts of partition dimension and vertex coloring in a graph. The minimum number of colors required to perform location coloring in graph G is referred to as the location chromatic number of graph G. This research is a literature study that discusses the location chromatic number of the Pizza graph. The approach used to calculate the location-chromatic number of these graphs involves determining upper and lower bounds. The results obtained show that the location chromatic number of the pizza graph is 4 for n = 3 and n for ≥ 4.
The Effect of Phoenix Dactylifera on Uterine Contraction in Labor Kartika, Dinda; Kundarti, Finta Isti; Mediawati, Mika; Setyarini, Didien Ika
JURNAL PROTEKSI KESEHATAN Vol 12 No 2 (2023): JPK: Jurnal Proteksi Kesehatan
Publisher : Poltekkes Kemenkes Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36929/jpk.v12i2.723

Abstract

Cases of prolonged labor in women labor in the world are still relatively high. Inadequate uterine contractions are the leading cause of complications of maternal death worldwide. This study aimed to analyze the Effect of Phoenix Dactylifera on uterine contractions in birthing mothers. The method applied in this research was an experimental Pretest posttest control group design. In this study, there were 60 samples, which were divided into two groups. The Paired t-test results on uterine contractions during the pretest-posttest in the intervention group showed significant results, namely a value of 0.000. In the control group, uterine contractions during the pretest-posttest showed an AP value of 0.090. Uterine contractions increased (adequate) after the mothers were given dates.
PENGEMBANGAN PERMAINAN EDUKASI KRIPTOGRAFI MENGGUNAKAN RPG MAKER MZ Raja, Rinto Manik; Nainggolan, Agnes Margareta; Naibaho, Debora Elssaday; Kartika, Dinda
JURNAL MathEdu (Mathematic Education Journal) Vol 8 No 1 (2025): JURNAL MathEdu (Mathematic Education Journal) Maret 2025
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v8i1.6768

Abstract

Penelitian ini bertujuan untuk mengembangkan permainan edukasi berbasis RPG Maker MZ dalam menyampaikan konsep dasar kriptografi sebagai media pembelajaran interaktif. Metode penelitian yang digunakan adalah Research and Development (R&D) dengan model ADDIE, yang meliputi tahap analisis, perancangan, pengembangan, dan evaluasi. Permainan ini menggabungkan alur cerita menarik dan teka-teki kriptografi untuk membantu pemain memahami konsep kriptografi. Permainan edukasi yang dikembangkan berhasil menggabungkan alur cerita menarik dan tantangan kriptografi dengan cara yang lebih interaktif dan mudah. Evaluasi internal memastikan bahwa permainan berjalan sesuai rancangan, baik dari segi desain, mekanisme permainan, maupun penyampaian materi edukasi. Penelitian ini merekomendasikan penggunaan RPG Maker MZ sebagai platform alternatif dalam pengembangan media pembelajaran matematika yang inovatif dan menarik.
Comparative Analysis of Model Architectures Using Transfer Learning Approach in Convolutional Neural Networks for Traditional Ulos Fabric Classification Abdullah, Taufik; Saputra S, Kana; Syahputra, Hermawan; Indra, Zulfahmi; Kartika, Dinda
Journal of Artificial Intelligence and Engineering Applications (JAIEA) Vol. 4 No. 2 (2025): February 2025
Publisher : Yayasan Kita Menulis

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59934/jaiea.v4i2.719

Abstract

Ulos cloth is a traditional woven fabric of the Batak tribe in North Sumatra, valued for its aesthetic and symbolic significance in various ceremonies. The diversity of ulos motifs presents challenges in preservation due to their unique patterns and functions. This study aims to develop an accurate method for classifying ulos motifs using Transfer Learning on Convolutional Neural Network (CNN) architectures. Five popular models—VGG16, VGG19, MobileNetV3, Inception-V3, and EfficientNetV2—were evaluated on a dataset of 962 ulos images across six motif categories.The results show that Inception-V3 outperformed other models with an average validation accuracy of 98.13% and the lowest loss of 5.67%. Inception-V3 also demonstrated superior generalization, achieving the highest K-fold validation accuracy, while VGG16 and VGG19 exhibited overfitting at higher learning rates. Two-way ANOVA analysis confirmed significant performance differences among the models and highlighted the interaction between model type and training methods. This research recommends Inception-V3 as the optimal model for ulos motif classification, offering an efficient and reliable tool to support cultural preservation through advanced image recognition technology.
Development of Batik Motifs using Symatrig Application to enhance productivity and competitiveness of SMEs Kartika, Dinda; Niska, Debi Yandra; Suwanto, Fevi Rahmawati; Amalia, Sisti Nadia; Siregar, Nurhasanah; Talia, Anita; Syahputra, Fikri
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol. 10 No. 1 (2025): February 2025
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v10i1.14812

Abstract

The Village Development Index (IDM) of the North Padang Lawas Regency in 2023 remained underdeveloped. The status has been upheld since 2018, although many craft and tourism industries in North Padang Lawas Regency have the potential to contribute to the regional economy, one of which is batik small medium enterprises (SMEs). Batik SMEs in North Padang Lawas Regency are predicted to be the featured product of the regency. One of the batik SMEs, i.e., Batik Sekar Najogi, becomes the icon of North Padang Lawas Regency. However, limited knowledge and resources in developing varied batik motifs have made the batik SMEs in this regency unpopular, both provincial and national. The Abdimas Team and partners, i.e., the Department of Industry and Trade of North Padang Lawas Regency, hold training and coaching for the Symatrig computer application to develop batik motifs based on symmetrical patterns in mathematics. The application also has different motif development patterns to produce various batik motifs. Of 30 batik makers joining the training, 13 agree to utilize the Symatrig application in their businesses, while the others strongly agree. Batik makers also offer recommendations to continue conducting such activity to support those involved in the industry.
Analisis Strategi Pemasaran PT. Bank Sumut Kantor Cabang Pembantu Syariah Karya dalam Meningkatkan Jumlah Nasabah Pembiayaan Multiguna Kartika, Dinda; Jannah, Nurul
Regress: Journal of Economics & Management Vol. 2 No. 1 (2022)
Publisher : Medan Resource Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (830.048 KB) | DOI: 10.57251/reg.v2i1.310

Abstract

Marketing strategy is a continuation of the form of market introduction, which will be related to what strategy will be used in marketing the product so that it can be accepted in the market. The marketing strategy of Islamic Banks is one of the steps that must be taken in marketing banking products and services as indicated by increased sales. The increase in sales is oriented towards fund-raising and customer-oriented products, improving service quality and increasing fee-based income. The purpose of this study was to determine the marketing strategy of PT. Bank Sumut Sharia Karya Sub-Branch Office in increasing the number of multipurpose financing customers. The research method used in this research is qualitative with descriptive method. The data is collected, compiled, grouped, analyzed, then integrated so that it becomes a clear and focused picture of the problem under study. Is a research method that is carried out by going directly to the object of research studied at PT. Bank Sumut Sharia Karya Sub-Branch Office. Based on the research results, the marketing strategy used by PT. Bank Sumut Sharia Karya Sub-Branch Office in increasing the number of multipurpose financing customers is by conducting Sales Promotion, Personal Selling and advertising which is applied at PT. Bank Sumut Sharia Karya Sub-Branch Office.
The Application of Frieze Groups and Crystallographic Groups in Generating Batak Toba Ornament Motifs Using a Matlab Graphical User Interface Sinaga, Marlina; Kartika, Dinda
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 8, No 1 (2024): January
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v8i1.17130

Abstract

Gorga is a carving or sculpture typically found on the exterior of a Toba Batak traditional house. The Batak people use fractal (geometric) dimensions in Batak gorga carvings. In mathematics, repetitive and symmetrical patterns in planes that result from transformations are included in the plane symmetry groups. Ethnomathematics is a cultural approach to the concept of mathematics. A frieze group can be defined as a symmetrical group which arises from a unidirectional translation and subsequently generates a linear pattern that recurs exclusively in a single direction. There are seven different pattern types in the frieze groups. Meanwhile, crystallographic patterns are flat two-dimensional patterns that form a lattice. There are 17 crystallographic types of patterns with five different types of unit lattices. The purpose of this study is to generate motifs for Batak ornaments based on frieze groups and crystallographic groups using a Matlab Graphical User Interface (GUI). A total of 119 new motifs were generated based on seven types of patterns in the frieze groups, namely, F1,F2,F3,F4,F5,F6, and F7. Meanwhile, in the crystallographic groups, 153 new motifs were generated based on nine types of patterns, namely, p1,p2,pm,pg,cm,pmg,pmm,cmm, and pgg. To keep with trends, the new motifs generated can be used in everyday life as decorations or business symbols that are characteristic of the Toba Batak region.
PEMANFAATAN SAMPAH PLASTIK MENJADI ICON NAMA DESA DALAM PROGRAM ECOBRIK Sadida, Wahyuni; Kartika, Dinda; Zainuddin, Zainuddin; Gusmawati, Gusmawati; Ramadhani, Eliza; Jamil, Jannatul; Mauliana, Mauliana; Hikmah, Muziatun; Hidayat, Finda; Marlinda, Marlinda
Jurnal Gembira: Pengabdian Kepada Masyarakat Vol 3 No 05 (2025): OKTOBER 2025
Publisher : Media Inovasi Pendidikan dan Publikasi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Program Kuliah Kerja Nyata (KKN) di Desa Cot Punti, Kecamatan Woyla, Kabupaten Aceh Barat difokuskan pada upaya pemanfaatan sampah plastik melalui metode ecobrik. Sampah plastik menjadi persoalan serius di pedesaan karena belum tersedianya sistem pengelolaan yang memadai. Kegiatan ini dilaksanakan melalui tahapan observasi, perencanaan, pelaksanaan, hingga evaluasi, dengan melibatkan masyarakat secara partisipatif. Hasil utama yang dicapai adalah pembangunan icon nama desa berbahan ecobrik yang berfungsi sebagai identitas visual sekaligus sarana edukasi lingkungan. Selain menghasilkan karya fisik, kegiatan ini juga berhasil meningkatkan kesadaran masyarakat tentang pentingnya pengelolaan limbah plastik serta menumbuhkan budaya gotong royong. Dengan keterlibatan lebih dari 70% rumah tangga, program ini terbukti mampu mengurangi volume sampah plastik di desa. Model kegiatan KKN berbasis ecobrik ini dapat direplikasi di wilayah lain sebagai solusi kreatif, edukatif, dan berkelanjutan dalam mendukung tujuan pembangunan berkelanjutan (SDGs).
SEIQR Model Sensitivity and Bifurcation Analysis of SARS-CoV-2 Dynamics with International in-out Mobility Control in Indonesia Sinaga, Lasker Pangarapan; Kartika, Dinda; Farhana, Nurul Ain
Jambura Journal of Mathematics Vol 6, No 1: February 2024
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjom.v6i1.23426

Abstract

This study aims to analyze the SEIQR model for the SARS-CoV-2 dynamic by considering in-out mobility. The model construction is based on the COVID-19 response strategy implemented by the Indonesian government, then analyzing the model by determining the equilibrium point and basic reproduction number, analyzing model stability, parameter sensitivity, and bifurcation. The results show that the model has stable disease-free and disease-endemic critical points when the parameter inequality conditions based on the Routh-Hurwitz criteria are satisfied. Numerical simulations show that the system takes a long time to reach equilibrium. Furthermore, the sensitivity analysis of the basic reproduction number shows that the most sensitive parameters are natural birth and death rate susceptible, contact rate of susceptible individuals with infected individuals from local and international subjects, and rate of exposed individuals who have infected. Thus, efforts to handle COVID-19 in Indonesia can be improved by focusing on controlling international in-out mobility, so that the number of exposed individuals who have been infected can be reduced. Moreover, the bifurcation analysis shows that the system undergoes forward or backward bifurcation under disease-free conditions if certain coefficient values are satisfied based on the Castillo-Chavez and Song conditions.
Transformasi Seni Tradisional ke Era Digital: Penerapan Konsep Fraktal dalam Desain Batik Berbasis Website untuk Meningkatkan Kreativitas dan Inovasi Pasaribu, M.Arya; Nasution, Muhammad Ibrohim; Mardiana, Annisya; Cahaya, Puspa; Kartika, Dinda
Innovative: Journal Of Social Science Research Vol. 4 No. 6 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i6.17389

Abstract

Batik merupakan salah satu warisan budaya Indonesia yang telah diakui UNESCO sebagai Warisan Budaya Dunia. Keindahan motif batik sering kali mencerminkan harmoni seni dan filosofi mendalam. Penelitian ini mengintegrasikan seni tradisional batik dengan teknologi modern melalui penerapan konsep fraktal, cabang geometri yang mempelajari pola berulang dan kompleks. Tujuan penelitian ini adalah mengembangkan sebuah website interaktif berbasis fraktal yang memungkinkan pengguna mendesain motif batik secara mandiri. Dengan algoritma matematis, pola batik dapat dihasilkan secara otomatis dan variatif, membuka peluang untuk eksplorasi desain yang inovatif. Hasil penelitian berupa platform yang memadukan estetika seni batik dan kecanggihan teknologi digital. Meski memiliki keterbatasan dalam variasi pola, website ini memiliki potensi besar untuk dikembangkan lebih lanjut sebagai alat kreatif yang memudahkan akses terhadap seni tradisional di era modern.
Co-Authors Amalia, Sisti Nadia Amry, Zu Ashari, Muhammad Cahaya, Puspa DIdi Febrian Didien Ika Setyaraini Fikri Syahputra Gusmawati Gusmawati, Gusmawati Hermawan Syahputra Hidayat, Finda Hikmah, Muziatun Ida Ayu Putu Sri Widnyani Jamil, Jannatul Kana Saputra S Kundarti, Finta Isti Lasker Pangarapan Sinaga Lestari, Alya Dwi Mardiana, Annisya Marlinda Marlinda Mauliana Mauliana, Mauliana Mediawati, Mika Mingka, Rizka Annisa Naibaho, Debora Elssaday Nainggolan, Agnes Margareta Nasution, Hamidah . Nasution, Muhammad Ibrohim Niska, Debi Yandra Nurhasanah Siregar . Nurul Ain Farhana Nurul Jannah Nurul Maulida Surbakti Pahlawan, Riza Pandiangan , Petra Putri Sarinah Pasaribu, M.Arya Puspita, Maysi Raja, Rinto Manik Ramadhani, Eliza Sadida, Wahyuni Sinaga, Marlina Singarimbun, Riamonda Sri Dewi Surbakti, Nurul Surbakti, Nurul Maulida Suryani, Windi Suwanto, Fevi Rahmawati Talia, Anita Zainuddin, Zainuddin Zulfahmi Indra, Zulfahmi