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Redaksi BAREKENG: Jurnal ilmu matematika dan terapan, Ex. UT Building, 2nd Floor, Mathematic Department, Faculty of Mathematics and Natural Sciences, University of Pattimura Jln. Ir. M. Putuhena, Kampus Unpatti, Poka - Ambon 97233, Provinsi Maluku, Indonesia Website: https://ojs3.unpatti.ac.id/index.php/barekeng/ Contact us : +62 85243358669 (Yopi) e-mail: barekeng.math@yahoo.com

BAREKENG: Jurnal Ilmu Matematika dan Terapan

barekeng
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Published by Universitas Pattimura

ISSN : 19787227 EISSN : 26153017 DOI : https://search.crossref.org/?q=barekeng

Core Subject : Economy, Science, Education, Engineering,

Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Mathematics Mechanical Engineering Physics Transportation

BAREKENG: Jurnal ilmu Matematika dan Terapan is one of the scientific publication media, which publish the article related to the result of research or study in the field of Pure Mathematics and Applied Mathematics. Focus and scope of BAREKENG: Jurnal ilmu Matematika dan Terapan, as follows: - Pure Mathematics (analysis, algebra & number theory), - Applied Mathematics (Fuzzy, Artificial Neural Network, Mathematics Modeling & Simulation, Control & Optimization, Ethno-mathematics, etc.), - Statistics, - Actuarial Science, - Logic, - Geometry & Topology, - Numerical Analysis, - Mathematic Computation and - Mathematics Education. The meaning word of "BAREKENG" is one of the words from Moluccas language which means "Counting" or "Calculating". Counting is one of the main and fundamental activities in the field of Mathematics. Therefore we tried to promote the word "Barekeng" as the name of our scientific journal also to promote the culture of the Maluku Area. BAREKENG: Jurnal ilmu Matematika dan Terapan is published four (4) times a year in March, June, September and December, since 2020 and each issue consists of 15 articles. The first published since 2007 in printed version (p-ISSN: 1978-7227) and then in 2018 BAREKENG journal has published in online version (e-ISSN: 2615-3017) on website: (https://ojs3.unpatti.ac.id/index.php/barekeng/). This journal system is currently using OJS3.1.1.4 from PKP. BAREKENG: Jurnal ilmu Matematika dan Terapan has been nationally accredited at Level 3 (SINTA 3) since December 2018, based on the Direktur Jenderal Penguatan Riset dan Pengembangan, Kementerian Riset, Teknologi, dan Pendidikan Tinggi, Republik Indonesia, with Decree No. : 34 / E / KPT / 2018. In 2019, BAREKENG: Jurnal ilmu Matematika dan Terapan has been re-accredited by Direktur Jenderal Penguatan Riset dan Pengembangan, Kementerian Riset, Teknologi, dan Pendidikan Tinggi, Republik Indonesia and accredited in level 3 (SINTA 3), with Decree No.: 29 / E / KPT / 2019. BAREKENG: Jurnal ilmu Matematika dan Terapan was published by: Mathematics Department Faculty of Mathematics and Natural Sciences University of Pattimura Website: http://matematika.fmipa.unpatti.ac.id

Arjuna Subject : Matematika - Matematika Terapan

Articles 1,248 Documents

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MENGKAJI PERBEDAAN KEMAMPUAN MATEMATIS SISWA MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF THINK PAIR SHARE (TPS) DAN MODEL PEMBELAJARAN KONVENSIONAL DI KELAS VIII SMP DITINJAU DARI LEVEL SEKOLAH Palinussa, Anderson Leonardo; Thaib, Abdullah
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 1 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

The purpose of this research is to study the differencesstudentsâ€™ mathematical abilities of schools with middle accreditation level and low accreditation level when given the same treatment by applying Think Pair Share (TPS) model compared to conventional models on the circle concept. The Population of this research is schools with a midddle accreditation level and low accreditation level in Ambon. Samples of this research are students on the 8th grade of SMP Al-Wathan Ambon which has middle accreditation level and students on 8th grade of SMP Ass Salam Ambon which has low-level accreditation. This research is experimental research by using Post Test Only Control Group Design. The results on these schools shown that a significant value less than alpha value, in precisely 0,012 < 0,05, which means H0 is rejected and H1 is accepted. This statistical expression means that there is a difference in studentsâ€™ mathematical abilities through the application of Think Pair Share and Conventional model reviewed from school levels.

KOMPARASI HASIL BELAJAR SISWA YANG MENGGUNAKAN MEDIA SWISHMAX DAN TANPA SWISHMAX PADA MATERI OPERASI HITUNG PECAHAN DI KELAS VII SMP NEGERI 3 AMBON Talakua, Marlyd; Ratumanan, Tanwey Gerson; Tamalene, Hanisa
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 1 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

This study aims to determine whether there are differences between student's learning outcomes who are taught using swishmax as learning media and without using swishmax in the fractional operation material of class VII in SMP Negeri 3 Ambon. The study used experimental research with the pretest-posttest control group as research design. The study was conducted on class VII students of SMP Negeri 3 Ambon. there are two classes in the study. The first is experimental class which is taught using swishmax learning media and the second is control class which is taught without using swhismax. Based on the t-test with the help of the SPSS program, it was obtained t_count = t_3,591325> t_2.0106 = t_tabel, so that H0 is rejected or Ha is accepted. This shows that there are significant differences between the learning outcomes of students who are using Swishmax learning media and those are without using Swishmax learning media. Furthermore, the average scores of the experimental class and control class were 71.90 and 59.46 respectively. Thus, the learning of fractional operations using swishmax provides significantly better results compared to without swishmax.

PENDEKATAN GEOGRAPHICALLY WEIGHTED ZERO INFLATED POISSON REGRESSION (GWZIPR) DENGAN PEMBOBOT FIXED BISQUARE KERNEL PADA KASUS DIFTERI DI INDONESIA Ismah, Ismah; Sumertajaya, I Made; Djuraidah, Anik; Fitrianto, Anwar
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 1 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

The number of deaths due to diphtheria is counts data and there is a considerable presence of zeros (excess zeros). Besides, data on the spread of disease are generally geographically oriented or observed in each particular region, which is a type of spatial data. Geographically Weighted Zero Inflated Poisson Regression (GWZIPR), as the development of Geographically Weighted Regression (GWR) and Zero Inflated Poisson (ZIP) models will be used as a model in processing provincial diphtheria data in Indonesia in 2018, with the independent variable percentage of diphtheria cases (X1), percentage of vaccinated numbers (X2) and percentage of the population (X3) in each province in Indonesia. Estimating model parameters uses the method of maximum likelihood estimation. While the weighting function used is fixed bisquare kernel. Data is processed using software R packages lctools. The results were obtained if the model involved all three independent variables, the effect of the three independent variables on the number of deaths due to diphtheria was not significant. This is because there is a strong and significant relationship between independent variables, so that if the model does not involve a variable percentage of the population (population density), the percentage of vaccinated people affects the number of deaths caused by diphtheria significantly in an area. So that the provision of immunization vaccines can reduce the number of deaths caused by diphtheria

PROFIL 24 JAM KUAT PENERANGAN, SUHU UDARA, KELEMBABAN UDARA DI LUAR DAN DI DALAM HUTAN MANGROVE Dalengkade, Mario Nikolaus
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 1 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

The phenomenon of climate change that occurs in statistical distribution patterns throughout the period of change in variation. These changes would be implications for micro abiotic conditions. As a case study, the abiotic condition profile in mangrove ecosystems is interesting to study in the Fourier function. This study aims to describe the relationship between weather variables such as intensity, air temperature, and humidity using the Fourier function . The results of the study showed that the intensity of position 1 (the outermost point) and position 3 (the edge point) presented a graphic higher than position 9 (the point in) the mangrove forest, with a peak illumination at 12.00 at 51,210 lux. The air temperature at 19.00â€’04.00 has decreased and rises again until 13.00 oâ€™clock reached a maximum point of 34,60 C. The air temperature is inversely proportional to the humidity, at 19.00 to 04.00 an increase and again decreased to reached the minimum limit of 59,9% at 13.00 oâ€™clock. In addition, cross-correlation showed of the air temperature and humidity consistently presented thermal diffusion of 1,0 hours from position 1 to position 3, while positions 3 to position 9 are 1,0 hours â€’ 1,2 hours. Data indicate that mangrove forests can reduce vertical thermal diffusion.

APLIKASI ALGORITMA BACKTRACKING UNTUK MENENTUKAN RUTE OPTIMAL DISTRIBUSI AIR ISI ULANG GONZALO DI KOTA AMBON Lakotany, Jemsry E.; Persulessy, Elvinus R.; Lesnussa, Yopi Andry
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 1 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

Distribution is a delivery of goods from an original area to the destination area, wherein the distribution, the problem of travel routes is very important because it can affect the time and cost of doing the distribution. The optimal route itself is a route that minimizes the distance and travel time. This research using the Backtracking Algorithm as part of the Traveling salesman problem method in finding the shortest route or minimum distance. In this research, the Backtracking algorithm is applied to search the minimum route for Gonzalo refill water distribution. The results obtained are the path with the shortest route in Ambon City, such as: Gonzalo - Jln. Karang Panjang - Jln. Pitu ina - Jln. Dr. Kayadoe - Terminal mardika - Jln. Wr. Supratman - Jln. A.Y. Patty - Jln. Said Commands - Jln. Pattimura - Jln A. Yani - Gonzalo, with a long of travel route is 15,301 Km.

FLUKTUASI TEMPORAL KELEMBABAN UDARA DI DALAM DAN LUAR EKOSISTEM MANGROVE Dalengkade, Mario Nikolaus
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 2 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

Modeling air humidity in the mangrove ecosystem using Fourier functions shows a cycle of temporal fluctuations. The cycle is influenced by the intensity of the sun. Graphical modeling of air humidity shows similarities for position 1 and position 3. Starting at 19.00 air humidity is 72% and continues to rise reaching 85.5% at exactly 04.00. Then it declined again by 59.2% at 12.00. Unlike the 9th position starting at 19.00 the value of air humidity is 71.5% and continues to rise reaching 82.5% at exactly 4:00 a.m., and decreases again to reach 65% at 12.00. The difference in the value of air humidity is because position 1 and position 3 are located outside and the edge of the mangrove forest where no or lack of mangrove canopy cover causes the evaporation process to occur very quickly. While position 9 is located in the mangrove forest where the mangrove canopy cover plays an important role in controlling the evaporation process and reducing the intensity of the sun. Besides that cross-choreal testing produces a timeâ€’lag that varies for each position measuring air humidity based on the depth and edge of the mangrove ecosystem.

ANALISIS KESTABILAN MODEL PENYEBARAN PENGGUNA NARKOBA DENGAN FAKTOR EDUKASI Husain, Moh Rizal; Nurwan, Nurwan; Resmawan, Resmawan
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 1 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

This article discusses the model of drug addicts with education. The analysis begins by constructing the model. Next, the equilibrium point and its stability conditions are determined, and numerical simulation is given at the end. Two equilibrium points obtained, those are the drug-addicts free equilibrium point and the drug-addicts endemic equilibrium point. Then the basic reproduction number ( ) as the expected value of infection per unit time is determined using the Next Generation Matrix approach. Based on the numerical simulation, every population is stable near to the drug-free equilibrium point at , means the population of the drug-addict constantly decrease and on a certain condition will be non-existent, and stable around to drug-endemic equilibrium point at , means the drug-addict population will constantly increase so the drug epidemic occurred. Through the numerical simulation, the biggest education is given, the more population susceptible to education increase which caused the number population of susceptible without education decrease.

PENERAPAN FUZZY INFERENCE SYSTEM TIPE MAMDANI UNTUK MENENTUKAN JUMLAH PRODUKSI ROTI BERDASARKAN DATA JUMLAH PERMINTAAN DAN PERSEDIAAN (STUDI KASUS PABRIK CINDERELA BREAD HOUSE DI KOTA AMBON) Sahulata, Elisabeth Rossemary Yunita; Wattimanela, H. J.; Noya Van Delsen, M. S.
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 1 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

Increased competitive competition in the economic development of each company engaged in the industry requires the company to win the competition by taking into account the inventory of goods to get the maximum profit. Therefore the planning of the number of products is very important to meet all existing requests. Writing and discussion in this study is the application of the Mamdani Fuzzy Inference System to determine the amount of production based on data on the amount of supply and demand at Cinderela Bread House Factory using the help of Matlab R2017a Software to determine the number of bakery products that must be produced. The application of Mamdani type Fuzzy logic in determining the amount of bread production based on the amount of supply and demand data can assist companies in making decisions with an accuracy value of 90.26633% and an error value of 9.77367%.

ESTIMASI PARAMETER MODEL PROBIT PADA DATA PANEL MENGGUNAKAN OPTIMASI BFGS Halistin, Halistin; Ratnasari, Vita; Rahayu, Santi Puteri; Patih, Tandri
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 2 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

One model that may explain the pattern of the relationship between the categorical dependent variable and the independent variables is probit regression. In the probit regression, the independent variable can be categorical or continuous. Probit regression is using the link function of the standard normal distribution. If the probit regression modeling involves a cross-section data and time series data, it is called probit data panel model. Parameter estimation of random effect probit data panel model is using the maximum likelihood estimation (MLE) method with Gauss Hermite Quadrature approach. Iterative procedure by using BFGS method. BFGS method used to obtain the close form value of the parameter estimates.

APLIKASI PROGRAM LINIER INTEGER 0-1 UNTUK MENYUSUN JADWAL USULAN PIKET SATPOL PP Hermanto, Koko; Suarantalla, Ryan; Sahdan, Sahdan
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 14 No 1 (2020): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

A zero-one integer linear programming with the Lindo software approach can be used to solve the cyclical scheduler method problem. The cyclical scheduling method is one of the scheduling methods that can be used to schedule work picks from Satuan Polisi Pamong Praja (Satpol PP), where each Satpol PP will work within a specified period of 5 days and will repeat periodically. The decision variable solution to the linear programming model is zero or one which becomes the decision of the Satpol PP in choosing the type of schedule. The preparation of this proposed schedule pays attention to the preferred weight of the Satpol PP holidays in each type of schedule that is formed so that the objective function of the linear programming model is to maximize the preferred holiday weights per Satpol PP against the existing schedule types. The results of the analysis obtained an optimal proposal schedule in maximizing the quality of assignments to each shift while taking into account the workload and constraints that exist. Also, it is known comparison between proposal scheduling and scheduling that has been used so far is seen in the aspect of quality, and fairness of the schedule carried out in the proposed scheduling is superior.

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Yopi Andry Lesnussa, S.Si., M.Si

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Maluku

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Contact Name Yopi Andry Lesnussa, S.Si., M.Si

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Location Kota ambon, Maluku INDONESIA

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Yopi Andry Lesnussa, S.Si., M.Si

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yopi_a_lesnussa@yahoo.com

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+6285243358669

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barekeng.math@yahoo.com

Location
Kota ambon,

Maluku

INDONESIA