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All Journal JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI Jurnal Pengajaran MIPA Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Jurnal Online Pendidikan Matematika Kontemporer EurekaMatika (Jurnal Online Matematika S1) AKSIOMA: Jurnal Program Studi Pendidikan Matematika Journal of Mathematical and Fundamental Sciences Jurnal Daya Matematis Kubik Indonesian Journal of Science and Technology Jurnal Matematika dan Statistika serta Aplikasinya (Jurnal MSA) Jurnal Fourier AdMathEduSt: Jurnal Ilmiah Mahasiswa Pendidikan Matematika Math Didactic: Jurnal Pendidikan Matematika AL ISHLAH Jurnal Pendidikan Didaktis: Jurnal Pendidikan dan Ilmu Pengetahuan Jurnal Analisa Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Jurnal Cendekia : Jurnal Pendidikan Matematika M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Jurnal Pengabdian Kepada Masyarakat (Mediteg) JPMI (Jurnal Pembelajaran Matematika Inovatif) Jurnal Ilmiah Matematika dan Pendidikan Matematika (JMP) JIIP (Jurnal Ilmiah Ilmu Pendidikan) InPrime: Indonesian Journal Of Pure And Applied Mathematics KUBIK: Jurnal Publikasi Ilmiah Matematika Jurnal Eurekamatika MATHunesa: Jurnal Ilmiah Matematika JASL - Journal of Applied Studies in Language Edumatica: Jurnal Pendidikan Matematika Jurnal Dedikasi untuk Negeri Jurnal Riset Mahasiswa Matematika Jurnal Matematika Integratif SIGMA DIDAKTIKA: Jurnal Pendidikan Matematika JMT (Jurnal Matematika dan Terapan) Journal on Mathematics Education Research Jurnal Pendidikan MIPA Jurnal Pendidikan Progresif
Kartika Yulianti
Universitas Pendidikan Indonesia
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Maxim violation in pretty little liars TV series Yulianti, Kartika; Ambalegin, Ambalegin
Journal of Applied Studies in Language Vol. 5 No. 2 (2021): Dec 2021
Publisher : Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jasl.v5i2.301-308

Abstract

This research was conducted due to the importance of cooperative principle in daily conversation, as Grice’s theory explained about cooperative principle which has been divided into four maxims: 1) maxim of quantity, 2) maxim of quality, 3) maxim of relation, and 4) maxim of manner. These four maxims are the rules that have to be obeyed by the speakers and the interlocutors during interactions. This research is focusing on maxim of violation occurred in Pretty Little Liars TV Series. The method used in this analysis is descriptive qualitative. Objects of the research are the types of the violation and also the implied meaning behind the violation. This research used the observation method using non-participatory technique in collecting the data, and pragmatics identity method in analyzing the data. In presenting the data, this research used informal method. The result of this research found out that there were fifteen violations happened in Pretty Little Liars, all of the maxims are violated during this show. The violation of maxim relation was the most dominant violation.
Analyzing Computational Thinking Skills in 7th Grade Students: A Focus on Data Processing in Mathematics Education Fitria, Nida; Jupri, Al; Dahlan, Jarnawi Afgani; Yulianti, Kartika; Iskandar, Idris
Jurnal Pendidikan MIPA Vol 25, No 4 (2024): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Abstract

Computational Thinking (CT) skills are essential in mathematics education, particularly in data processing topics. This study aims to analyze the CT skills of 7th-grade junior high school students based on four main components: decomposing, abstraction, pattern recognition, and algorithmic thinking. A qualitative phenomenological approach was employed, involving 14 students selected purposively based on their diverse academic performance levels. Data was collected through classroom observation, CT skill tests focusing on data processing tasks, and in-depth semi-structured interviews to explore students’ problem-solving strategies and cognitive processes. The findings reveal varied CT competencies among students. For decomposing, 29% of students demonstrated high ability, effectively breaking down complex problems into manageable steps, while 36% exhibited moderate skills. In abstraction, the majority (57%) struggled to filter relevant data from irrelevant ones, highlighting this as a key area for improvement. Pattern recognition showed 36% of students in the high category, recognizing and logically explaining data trends, whereas 29% remained in the low category. Algorithmic thinking presented the strongest performance, with 43% of students categorized as high, showcasing structured and logical approaches to solving data-related problems. The study highlights the need for targeted interventions to strengthen abstraction and pattern recognition skills, crucial for comprehensive data analysis. By identifying strengths and weaknesses in CT skills, this research provides insights into designing more effective teaching strategies and developing CT-oriented curricula. The findings contribute to mathematics education by addressing 21st-century skills, equipping students with critical thinking and analytical capabilities needed in a data-driven world.         Keywords: computational thinking, mathematics, data processing, junior high school. DOI: http://dx.doi.org/10.23960/jpmipa/v25i4.pp1809-1823
Epistemological Obstacles of Secondary School Students in Solving PISA-Standard Mathematical Literacy Problems Related to Functions Elisya, Nur; Dahlan, Jarnawi Afgani; Yulianti, Kartika
Jurnal Pendidikan MIPA Vol 25, No 4 (2024): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Abstract

Mathematical literacy is an essential 21st-century competency that students must possess to address global challenges. However, results from the Programme for International Student Assessment (PISA) show that Indonesian students' mathematical literacy remains low. This study aims to explore the epistemological obstacles experienced by students in understanding and solving PISA-standard mathematical literacy problems related to functions. Employing a qualitative approach through Didactical Design Research (DDR), this study focused on identifying epistemological obstacles among four 8th-grade students at a public secondary school in Bandung. Data were collected using tests, interviews, and documentation. The research findings revealed epistemological obstacles related to both conceptual knowledge and practical application, which were detailed in five main issues: understanding the concept of functions, representing functions in the form of equations, graphs, and tables, and solving context-based problems. These obstacles arose due to limited foundational knowledge, such as the concepts of domain, range, and variables, as well as a lack of practice in solving contextual problems.      Keywords: epistemological obstacles, mathematical literacy, PISA, function, mathematic education.  DOI: http://dx.doi.org/10.23960/jpmipa/v25i4.pp1771-1786
Analyzing Cognitive Styles and Spatial Abilities in Geometry Transformations through the Problem-Based Learning Approach Syahbudin, Fauzan; Priatna, Nanang; Yulianti, Kartika
Jurnal Pendidikan Progresif Vol 14, No 3 (2024): Jurnal Pendidikan Progresif
Publisher : FKIP Universitas Lampung

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Abstract

Analyzing Cognitive Styles and Spatial Ability in Geometry Transformations Learning through PBL Approach. Objective: This study aims to investigate the spatial abilities of grade IX junior high school students using the Problem- Based Learning (PBL) approach, considering their cognitive styles: Field Independent (FI) and Field Dependent (FD). Methods: Using a descriptive qualitative approach, six students were selected based on their cognitive styles and spatial ability. Data were collected through spatial ability tests, interviews, and classroom observations. Findings: The findings highlight notable differences in spatial abilities between FI and FD students. FI students displayed strengths in spatial visualization, perception, and orientation, excelling in tasks that required analytical problem-solving and independent work. However, they faced challenges in mental rotation and proportional scaling during dilation, often struggling with complex transformations due to limited exposure and insufficient time management. FD students performed better in structured tasks, particularly spatial perception and orientation, benefiting from guided instructions and peer support. Nevertheless, FD students encountered significant difficulties in mental rotation and spatial relations, particularly in tasks requiring independent conceptual understanding. Group dynamics played a crucial role in the effectiveness of PBL. Balanced groups, consisting of both cognitive styles, fostered collaboration and improved learning outcomes. In contrast, homogeneous or imbalanced groups often resulted in reduced engagement and lower performance.Conclusion: This study underscores the necessity of adapting PBL strategies to align with the distinct needs of cognitive styles. FI students thrive with opportunities for independent exploration and structured individual feedback, while FD students require collaborative, guided discussions and supportive group settings. By integrating differentiated instructional strategies, educators can optimize spatial ability development and ensure equitable learning opportunities for all students. These insights provide a framework for enhancing geometry education through targeted, inclusive approaches. Keywords: cognitive styles, field dependent, field independent, problem-based learning, spatial ability.DOI: http://dx.doi.org/10.23960/jpp.v14.i3.2024144
E-Cordial Labeling for Cupola Graph Cu(3, b, n) Yulianti, Kartika; Rokhmatillah, Fitri; Sispiyati, Ririn
InPrime: Indonesian Journal of Pure and Applied Mathematics Vol. 4 No. 1 (2022)
Publisher : Department of Mathematics, Faculty of Sciences and Technology, UIN Syarif Hidayatullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/inprime.v4i1.24210

Abstract

Graph labeling is a map that maps graph elements such as vertices, edges, vertices, and edges to a set of numbers. A graph labeling is named e-cordial if there is a binary mapping f:E(G)→{0,1} which induces the vertex labeling defined by g(v)=Ʃ_{uvϵE(G)}f(uv)(mod 2), so that it satisfies the absolute value of the difference between the number of vertices labeled 1 and the number of vertices labeled 0 is less than equal to 1, and also for the number of edges labeled 0 and labeled 1. A graph that admits the e-cordial labeling is called an e-cordial graph. In this paper, we proved that some of the cupola graph Cu(3,b,n) is e-cordial.Keywords: E-Cordial Labeling; E-Cordial Graph; Cupola Graph Cu(a, b, n). AbstrakPelabelan graf merupakan pemetaan yang memetakan unsur-unsur graf seperti simpul, sisi, simpul dan sisi ke himpunan bilangan. Sebuah pelabelan dinamakan pelabelan e-cordial jika terdapat pemetaan biner f:E(G)→{0,1} yang menginduksi pelabelan simpul yang didefinisikan g(v)=Ʃ_{uvϵE(G)}f(uv)(mod 2) sehingga nilai mutlak dari selisih banyaknya simpul yang dilabeli 1 dan banyaknya simpul yang dilabeli 0 kurang dari sama dengan 1, dan nilai mutlak dari selisih banyaknya sisi yang dilabeli 1 dan banyaknya sisi yang dilabeli 0 kurang dari sama dengan 1. Sebuah graf yang dapat dilabeli secara e-cordial dinamakan graf e-cordial. Pada makalah ini dibuktikan bahwa beberapa graf kubah Cu(3,b,n) adalah e-cordial.Kata Kunci : Pelabelan E-Cordial; Graf E-Cordial; Graf Kubah Cu(a, b, n).
Optimizing Modem Placement in UPI Building FPMIPA using the Illumination Model Aisy, Khansa Salsabila Rohadatul; Yulianti, Kartika; Sumiaty, Encum; Yusnitha, Isnie
InPrime: Indonesian Journal of Pure and Applied Mathematics Vol. 6 No. 2 (2024)
Publisher : Department of Mathematics, Faculty of Sciences and Technology, UIN Syarif Hidayatullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/inprime.v6i2.41452

Abstract

Since a reliable internet signal has become an essential and significant need nowadays, the existence of modems as transmitters of internet signals is also crucial; modems transmit the internet signal (without cable), which is then captured by devices. This research aims to construct a mathematical model to determine the minimum number of modems and their placement so that the entire building FPMIPA-A of UPI has a good internet signal. In this research, we assume that the modem can pass through at most two walls, and the area studied is limited to the first floor of FPMIPA-A. The model is based on the illumination problems theorems, one of which states that every monotone 6-gon can be covered by a single 2-modem point placed at one of its two leftmost (or rightmost) vertices.  By the theorem, we view the layout of the rooms in the building as a combination of polygons. The results show that 12 modems are required to cover all areas on the first floor of FPMIPA-A to get a good signal.Keywords: illumination problem; modem; polygonal regions; optimal modem placement; building FPMIPA A. AbstrakSaat ini, kebutuhan akan sinyal internet yang andal menjadi kebutuhan penting dan utama. Modem sebagai pemancar sinyal internet mengirimkan sinyal internet (tanpa kabel) dan kemudian ditangkap oleh perangkat. Penelitian ini bertujuan untuk membangun model matematika yang menentukan jumlah minimum modem dan penempatannya agar seluruh gedung FPMIPA-A UPI mempunyai sinyal internet yang baik. Pada penelitian ini diasumsikan modem dapat menembus paling banyak dua dinding dan area yang diteliti dibatasi pada lantai 1 gedung FPMIPA-A UPI. Model matematika untuk masalah penempatan modem ini didasarkan pada teorema masalah iluminasi, yang salah satunya menyatakan bahwa setiap 6-gon monoton dapat ditutupi oleh satu titik 2-modem yang ditempatkan di salah satu dari dua simpul paling kiri (atau paling kanan).  Berdasarkan teorema tersebut, tata ruang pada lantai 1 gedung FPMIPA-A UPI dipandang sebagai kombinasi poligon. Hasil penelitian menunjukkan bahwa dibutuhkan 12 modem untuk mencakup seluruh area di lantai 1 FPMIPA-A guna mendapatkan sinyal yang baik. Kata Kunci: masalah iluminasi; modem, daerah poligon; penempatan modem secara optimal; gedung FPMIPA A. 2020MSC: 90C90.
Chromatic Number of the Corona Product of Complete Graph and Star Graph Asmarani, Mustika; Yulianti, Kartika; Mulyaning Asih, Endang Cahya
Jurnal MSA (Matematika dan Statistika serta Aplikasinya) Vol 13 No 2 (2025): VOLUME 13 NO 2, 2025
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/msa.v13i2.56235

Abstract

In this paper, we determine the chromatic number of the corona product of complete graph $K_n$ and star graph $K_{1,m}$. Determination of the chromatic numbers is done by observing patterns, constructing conjectures, and proving them formally. We found that the chromatic number of the corona product of complete graph $K_n$ and star graph $K_{1,m}$ is $\chi\left(K_n\odot K_{1,m}\right)=\left\{\begin{matrix}3,\ \ n=1,2\\n,\ n=3,4,\ldots,\ k\\\end{matrix}\right.$, and the chromatic number of the corona product of star graph $K_{1,m}$ and complete graph $K_n$ is $\chi\left(K_{1,m}\odot K_n\right)=n+1,\ n=1,2,\ldots,\ k$. Furthermore, using Matlab software, a program is created to visualize the coloring of the vertices based on the formula that has been obtained.
Model Matematika Penjadwalan Obat Kemoterapi Kanker secara Optimal Menggunakan Non-dominated Sorting Genetic Algorithm-II (NSGA-II) Ashilah Azmii, Yusyifa; Yulianti, Kartika; Sispiyati, Ririn
Jurnal Fourier Vol. 14 No. 1 (2025)
Publisher : Program Studi Matematika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/fourier.2025.141.45-55

Abstract

In this study, a mathematical model for cancer chemotherapy drug scheduling was developed, which is the problem of scheduling drugs given to patients. The mathematical model developed has an objective function of reducing cancer cells while reducing toxicity in the patient's body, with constraints in the form of limits for the number of healthy cells, cancer cells, drug concentration, and patient toxicity. The influential and interrelated variables are arranged in a system of differential equations consisting of the number of healthy cells, number of cancer cells, drug dose, drug concentration, patient toxicity and drug effect, which describes the chemotherapy of non-specific cancer cell cycles. Optimal solution was obtain numerically using Runge-Kutta Method and Non-dominated Sorting Genetic Algorithm-II (NSGA-II). The results showed that this algorithm was able to produce a solution with an optimal dosing schedule every 8 days for 106 days with 14 drug doses. Doses ranged from 20.00 to 29.55 mg/m² with an average of 24.28 mg/m² and a standard deviation of 3.64 mg/m² so as to minimize the number of cancer cells and damage to healthy cells.
Co-Authors Aan Hasanah Abdul Latip Abdul Latip Abolla, Gloria Angelica Agus Y. Gunawan Agus Yodi Gunawan Aini, Siti Aisy, Khansa Salsabila Rohadatul Al Jupri Alfitri, Putri Armania Agustina Alivia Alivia Alvira Firjan Humaira Ambalegin, Ambalegin Ashilah Azmii, Yusyifa Asmarani, Mustika Asyifa Rahmawati Azzahra, Yasmine Bill Chairy Rizki Bustaren Cece Kustiawan Dadang Juandi Darhim Darhim Dian Usdiyana Edy Soewono Eha Harningsih Elisabet Ivanna Grace Handayani Elisya, Nur Encum Sumiaty, Encum Enmufida Enmufida Entit puspita Erman Suherman Eyus Sudihartinih Fakhrana Nadhilah Fanny Febryani Fatimatuz Zahro Octavia Fery Ferdiansyah Fitri Rahmawati Fitri Rokhmatillah Fitri, Azela Fitria, Nida Hamdan Anshory Martanegara Husty Serviana Husain Ika Zulhidayati Iskandar, Idris Isnie Yusnitha, Isnie Jarnawi Afgani Dahlan Khusnul Novianingsih Kurniati, Nurdiyah Kurniawan, Surya Kusnandi Kusnandi Kusnandi, Kusnandi Lafita Rahmi LUKMAN, LUKMAN M Akbar Gulvara M. Rizqi Ramadhan Mulyaning A, Endang Cahya Mulyaning Asih, Endang Cahya Mutiara Pertiwi N. Nurjanah Nanang Priatna Nasution, Muhammad Awaludin Noor Annisah Sholehah Nur Aidah, Anisa Nur Hidayatullah Romadhon Nur Rofi'ah Nurmala Setianing Putri Pangestu, Herny Wulandari Pangestu, Herny Wulandari Rini Marwati Ririn Sispiyati Rokhmatillah, Fitri Sadiyyah, Fitriani Halimatus Salman, Gelar Saragih, Martin Valerian Amadeus Siti Aisah, Lusi Siti Fatimah Siti Fatimah Suci Permata Hati Sufyani Prabawanto, Sufyani Sulaiman, Faris Hasby Surya Kurniawan Syahbudin, Fauzan Syahraini, Alfi Syarifuddin Syarifuddin Taqiya, Farah Ayyun Tia Purniati Tia Purniati Turmudi Ulfa, Nadia Ulfah Nur Azizah Utari Wijayanti Wijaya, Muhammad Lutfi Wijaya, Muhammad Lutfi Lutfi Wildy Ardan Yaya S. Kusumah Yaya S. Kusumah Yaya Sukjaya Kusumah Yusuf Adhitya