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MES: Journal of Mathematics Education and Science
Published by Universitas Islam Sumatera Utara
ISSN : 25284363     EISSN : 25796550     DOI : https://dx.doi.org/10.30743/mes.v4i2.1292
Core Subject : Education,
Mathematics
MES (Journal of Mathematics Education and Science) diterbitkan secara berkala pada bulan April dan Oktober oleh Program Studi Pendidikan Matematika FKIP Universitas Islam Sumatera Utara. Jurnal ini membahas tentang kajian dibidang pendidikan matematika, pembelajaran matematika berbasis ICT dan matematika terapan.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 319 Documents
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ANALISIS METODE PLS-SEM DENGAN MODIFIKASI MODEL UTAUT2 PADA PENGGUNAAN CHATGPT OLEH MAHASISWA UNIVERSITAS SUMATERA UTARA Silalahi, Putri Mayang Syafira; br Tarigan, Enita Dewi; Pane, Rahmawati; Suyanto, Suyanto
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.9562

Abstract

The rapid advancement of technology in modern times has a great influence in various aspects of life, including in the world of education. One example is the presence of ChatGPT among students in learning activities. The use of ChatGPT has many benefits but the use of this technology must still be addressed wisely to avoid ethical issues, copyright and plagiarism. This study aims to determine what factors influence the use of ChatGPT by students of the University of North Sumatra in education. By using the Partial Least Squares-Structural Equation Modeling (PLS-SEM) method with the variables used, namely the UTAUT2 model. The findings of this study state that 8 hypotheses of the relationship between variables tested in the study, of which 4 hypotheses of the relationship between variables are accepted and 4 hypotheses of the relationship between variables are rejected.
OPTIMASI KEUNTUNGAN USAHA TERNAK AYAM RAS BROILER DENGAN PROGRAM LINEAR: STUDI KASUS PADA USAHA TERNAK AYAM RAS BROILER MILIK BAPAK HUMALA PONTAS DI DESA BATUGANA Suhaimi, Syech; Afnaria, Afnaria; Sari, Rina Filia; Marlina, Wenni; Usna, Wilia
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.10250

Abstract

This research is to determine optimal profits in the Humala Pontas broiler chicken farming business by using linear programming, especially the simplex method, to solve this problem. The software used is POM-QM.  The results of this research show that there is an increase in profits obtained if you apply a linear program in the feed management process. The optimal profit obtained by implementing a linear program is Rp 86,460,940.00 for one harvest. The profit so far obtained by breeders is Rp. 84. 200,000.00. There is a profit difference of Rp. 2,260,940.00 by implementing a linear program in the feed and medicine management process.
Optimisasi Transportasi Pada Lingkungan Kabur Dengan Penerapan North West Corner dan Fuzzy Modified Distribution Method Tambunan, Gilbert Pauly Hamonangan; Gultom, Parapat; Sawaluddin, Sawaluddin; Syahputra, Muhammad Romi
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.9732

Abstract

Distribution of agricultural commodities to processing industries requires quite large costs. This is caused by suboptimal allocation. Optimal allocation must take into account differences in transportation distribution costs in each destination area. Pamah Village has a corn commodity, corn which is produced during the harvest season. In each harvest season, the harvest is sold to 5 collectors. From these collectors, it is marketed to 12 corn processing industries. In optimizing allocation and minimizing distribution costs, it is completed using a fuzzy approach and the North West Corner method to get an initial solution, as well as the Fuzzy Modified Distribution method to get an optimal solution. The results of this research resulted in distribution of deliveries from 5 collectors to 12 corn processing industries with a minimum total cost of Rp 1,410,507,435.00. 
Analisis Sensitivitas Metode AHP dalam Penentuan Guru Teladan Berdasarkan Kinerja Sitompul, Weny Grace; Nababan, Esther Sorta Mauli; Gultom, Parapat; Sawaluddin, Sawaluddin
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.9659

Abstract

The aim of this research is to examine the final ranking results of the AHP method through sensitivity analysis. The sensitivity value is sought to predict the situation if there is a change in the weight of the decision criteria. A case example in this research is the determination of an exemplary teacher at SDN 028068 Binjai based on their performance using the AHP method. The decision criteria for this research are Academic Qualifications ( ), Educator Certificate ( ), Pedagogical Competency ( ), Personality Competency ( ), Social Competency ( ), and Professional Competency ( ). Before sensitivity analysis, preliminary final results were obtained by the AHP method. From the final results of the initial ranking using the AHP method, experiments were carried out through several stages of sensitivity analysis. Of all the experiments, generally experienced the most changes in priority order, especially in  with 12 changes in alternative priority order. Then through the sensitivity testing process, sensitivity 1 gets the highest value in the experiment with a value of 0.0282, sensitivity 2 in the experiment with a value of 0.1269, and sensitivity 3 in the  experiment with a value of 0.1256.
REGULARISASI REGRESI LINIER BERGANDA PADA DATA BERDIMENSI TINGGI UNTUK MENGATASI EFEK MULTIKOLINEARITAS Nasution, Muhammat Rayyan; Sutarman, S; Darnius, Open; Rosmaini, Elly
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.9469

Abstract

Penelitian ini membahas model regresi linier berganda yang diberikan regularisasi dalam kasus data berdimensi tinggi (? ≫ ?), bertujuan untuk mengatasi efek multikolinearitas yang terdiri dari efek singularitas dan kualitas model yang buruk. Dalam penelitian ini mengembangkan model regresi linier berganda dengan menambahkan parameter penalti pada fungsi tujuan. Adapun data yang digunakan adalah data primer yang dibangkitkan dengan bahasa pemrograman python dengan tiga skenario sesuai dari penelitian sebelumnya. Metode yang digunakan yaitu Ordinary Least Squared (OLS), Least Absolute Shrinkage and Selection Operator (LASSO) dan Ridge dalam mengestimasi parameter model regresi. Mean Squared Error (MSE) digunakan sebagai metrik evaluasi kinerja model yang dibangun. Dari hasil simulasi yang dilakukan, diperoleh bahwa metode LASSO memberikan kualitas model terbaik dengan memberikan nilai MSE terendah dibandingkan model lainnya.
PENERAPAN PARTIAL LEAST SQUARE-MODIFIED FUZZY CLUSTERING UNTUK SEGMENTASI DALAM PEMODELAN DATA PENGIRIMAN PAKET JNE MEDAN Pasya, Aulia Mumtazah; Husein, Ismail; Siregar, R. Maisaroh Rezyekiyah
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.10202

Abstract

JNE Express is one of the companies engaged in the field of shipping goods, the high level of shipping goods carried out and the many types of goods and types of services available at JNE Express, therefore knowledge is needed regarding the variables that affect the level of shipping goods and segmentation of the types of goods to be shipped. In this study, it is suspected that the type of service and special handling variables on the package affect the level of shipping goods carried out by JNE Express, Medan branch in the outbound unit. The approach used to determine the relationship between latent variables and model segmentation in shipping data is PLS-MFC (Partial Least Square-Modified Fuzzy Clustering). The results of the study showed that all variable indicators were significant where 4 of the 5 services type variable indicators were significant to the quantity of shipping goods, and 2 of the 2 special handling variable indicators were significant. The optimal segment results obtained based on the lowest FPI and NCE values were 2 segments or classes with an FPI value of 0.998 and an NCE value of 1.242. Where the exogenous latent variable that affects the high quantity of goods is the type of service with the REG indicator
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEAD TOGETHER TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS VII Nupus, Nurhayatun; Armanto, Dian
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.9839

Abstract

This study aims to determine the effect of the Numbered Head Together learning model on grade VII mathematics learning outcomes as well as the difficulties or weaknesses of students learning by using the Numbered Head Together learning model. This research is quantitative research with experimental research type, the research used pretest-posttest control group design. In this study the population was all class VII students of SMP Negeri 5 Percut Sei Tuan and the sample used consisted of two classes namely VII-6 (experimental class) and class VII-7 (control class). The sampling technique used simple random sampling. Based on the results of the pretest data, the average value of the experimental class was 29.59 and the control class was 31.5. While the posttest results obtained an average experimental value of 77.40 and a control class of 71.34. Based on the results of hypothesis testing using the t-test, it is concluded that there is a significant effect of the Numbered Head Together learning model on the learning outcomes of seventh grade mathematics students at SMP Negeri 5 Percut Sei Tuan. The Numbered Head Together model can reduce students difficulties in understanding and solving linear equations of one variable and increase students’ active participation in learning.
PERBANDINGAN PENGENDALIAN KUALITAS PRODUK WALL DISPLAY DENGAN DIAGRAM KENDALI D^2 DAN T^2 HOTELLING Harahap, Sherly Vitara; br Tarigan, Enita Dewi; Sembiring, Pasukat; Pane, Rahmawati
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.9584

Abstract

Quality control is the application of a statistical model of quality control to collect and analyze data to evaluate and monitor production results. Melia Frame Calligraphy is an agent and manufacturer of frames or frame bars and finished frameworks made from fiber and wood. The best-selling product is the wall display. Although wall displays are in high demand, they are also the most returned products due to defects since 2023. Based on observation data, it is calculated that the product defect data is quite high, with an average total of 34 defects per day. This study aims to detect the quality of wall display products with  (Mahalanobis Distance) and  Hotelling control charts at Melia Frame Calligraphy Trade Business. The results of this study found that the product experienced the most defects in October 2023 with a total defective product of 1009 units. By using the control diagram, 20 observations out of a total of 75 observations are outside the control limits, then by using the control diagram, 2 observations out of a total of 75 observations are outside the control limits. This shows that the wall display production process is not yet under control. These observations show that the  (Mahalanobis Distance) control chart has more sensitive control limits than the  Hotelling control chart control limits.
STUDI TENTANG KESTABILAN MODEL SIRD-T DENGAN KRITERIA ROUTH-HURWITZ PADA PENYEBARAN SUATU PENYAKIT MENULAR Barus, Tania Aldera Hartanta Putri; Nababan, Esther Sorta Mauli; Mardiningsih, Mardiningsih; Syahputra, Muhammad Romi
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.9306

Abstract

Penelitian ini menginterpretasikan gambaran model matematika SIRD-T dalam kasus penyakit campak, bertujuan untuk membentuk titik kesetimbangan (ekuilibrium) yang terdiri dari bebas penyakit dan endemik, menganalisis stabilitas titik ekuilibrium, serta melakukan simulasi numerik melalui parameter yang mempengaruhi penyebaran penyakit campak, sehingga dapat mengurangi penyebarannya. Kriteria Routh-Hurwitz menunjukkan bahwa infeksi tidak meningkat dan sistem akan menjadi stabil asimtotis. Kemudian diperoleh bilangan reproduksi dasar  artinya tidak terjadi penyebaran pada penyakit campak yang menandakan stabilitas jangka panjang. Sebagai hasil dari simulasi Odin, populasi Suspectible akan tetap berada pada populasi karena populasi berada dalam kondisi endemik, dan populasi Infected seiring berjalannya waktu akan stabil lokal.
ALGORITMA GENETIKA UNTUK PENYELESAIAN TRAVELLING SALESMAN PROBLEM PADA RUTE PENDISTRIBUSIAN BARANG SICEPAT EKSPRES Br Surbakti, Elesa Jessy; Syahmarani, Aghni
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.9487

Abstract

This study aims to examine the application of genetic algorithms in solving the Traveling Salesman Problem (TSP) on the distribution route of goods at SiCepat Ekspres, especially in Medan City. Limiting the research area to Medan City and involving 7 branch warehouses as destination points, the genetic algorithm found the shortest route of 72.6 km. In this study, the mutation process is limited to genes of the 3rd to 7th order to reduce the possibility of damaging an already good solution, thus maintaining the quality of the solution while still providing opportunities for further improvement. The results show that the genetic algorithm can provide an efficient shortest route solution, so that it can help improve the efficiency of goods distribution at SiCepat Ekspres.

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