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All Journal dCartesian: Jurnal Matematika dan Aplikasi MATEMATIKA Indonesian Journal of Mathematics and Natural Sciences Kreano, Jurnal Matematika Kreatif-Inovatif Khazanah Informatika: Jurnal Ilmu Komputer dan Informatika Jurnal Fourier Science and Technology Indonesia JOIV : International Journal on Informatics Visualization BAREKENG: Jurnal Ilmu Matematika dan Terapan JTAM (Jurnal Teori dan Aplikasi Matematika) International Journal on Emerging Mathematics Education SJME (Supremum Journal of Mathematics Education) Jambura Journal of Mathematics jurnal teknik informatika dan sistem informasi KAIBON ABHINAYA : JURNAL PENGABDIAN MASYARAKAT Jurnal Sains dan Edukasi Sains Journal of Science and Science Education Jurnal Ilmiah Sains Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya
Hanna Arini Parhusip
Universitas Kristen Satya Wacana
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Inovasi Geometri sebagai Media Pembelajaran Matematika Kreatif Parhusip, Hanna Arini; Susanto, Bambang
Kreano, Jurnal Matematika Kreatif-Inovatif Vol 9, No 1 (2018): Kreano, Jurnal Matematika Kreatif-Inovatif 9(1)
Publisher : Jurusan Matematika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Sema

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kreano.v9i1.14047

Abstract

Tujuan inovasi geometri sebagai media pembelajaran matematika kreatif adalah menyediakan contoh kreativitas dalam pembelajaran geometri sehingga geometri yang dikenal dalam pelajaran tidak hanya bentuk baku geometri klasik seperti segitiga, lingkaran, polygon beraturan. Siswa diperkenalkan cara menginovasi bentuk geometri tersebut menjadi bentuk-bentuk kreatif. Metode yang digunakan adalah inovasi permukaan aljabar dan inovasi polygon beraturan menjadi polihedra. Untuk metode pertama yaitu inovasi permukaan dengan menggunakan persamaan aljabar (misal bola dan silinder) dengan bantuan program Surfer. Sedangkan metode kedua adalah melakukan inovasi dengan materi lokal dilakukan dengan penyusunan bidang datar dalam bentuk ruang 3 dimensi melalui bentuk geometri yang sudah dikenal yaitu segi empat dan segilima menjadi polihedra. Adapun hasil penelitian dibedakan menjadi 2 hal dimana kedua hal tersebut selalu memanfaatkan kekayaan lokal Indonesia. Untuk hasil inovasi permukaan aljabar, hasil penelitian berupa motif-motif untuk batik. Sedangkan untuk inovasi polygon beraturan diperoleh Leonardo Dome,Leonardo Bridge dengan media kayu dan bambu, dan beberapa kreativitas disain penutup lampu dengan  kertas. Kegiatan pembuatan inovasi geometri tersebut telah dilakukan oleh mahasiswa pendidikan matematika FKIP dan matematika FSM UKSW dalam kuliah geometri untuk membuat prototip. Untuk selanjutnya, pendekatan yang sama dan produk yang dihasilkan diujicobakan pada siswa sekolah SMP dari Tangerang dan siswa menunjukkan ketertarikan yang lebih besar dibandingkan hanya mempelajari geometri di dalam kelas karena siswa mengalami interaksi yang lebih banyak.The objective of this inovation as educative material for geometry is to provide samples of creativities in mathematical for learning geomety such that geometry should not be thaught in classical sense such as learning only rules in triangles, circles and regular polygons. Students are introduced for innovating the existing geometry into several creative materials. There are 2 methods implemented here,i.e. innovating algebraic surfaces which are mainly cylinders and spheres and innovating regular polygons into several polyhedra. The first part is done by creating surfaces using software called Surfer. The second method is done with the help of a home industry to create parts of the materials. The results of this research are shown by several creative products for learning geometry. The innovation of algebraic surfaces is implemented into batik’s motifs where students are taking part to create the motifs using Surfers. The second method has provide several media such as Leonardo Dome and Leonardo Bridge where physical law can also be integrated for learning application of learning geometry. Additionally, lamp’s decoration is also produced due to innovation of regular polygons into polyhedral. The activities are done by undergraduate students from FKIP math education and FSM from mathematics department of UKSW for creating the prototypes. After words, 24 students from middle school in Tangerang and Students have shown greater interest to learn geometry rather than the classical sense (only in class) since doing the approaches above, students have active interaction with materials. 
Optimasi Perencanaan Produksi Kayu Lapis PT. XXX Menggunakan Metode Goal Programming Titilias, Y A; Linawati, L; Parhusip, H A
Indonesian Journal of Mathematics and Natural Sciences Vol 41, No 1 (2018): April 2018
Publisher : Universitas Negeri Semarang

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Abstract

Penelitian ini bertujuan untuk membuat perencanaan produksi barecore di PT. XXX, menggunakan data primer dan data sekunder bulan Januari – Mei 2017. Model Goal Programming untuk menentukan banyak produksi setiap produk (produk barecore A, B, C) pada setiap minggu selama 1 bulan dengan tujuan memenuhi permintaan konsumen bulanan, memaksimumkan output produksi setiap minggu dalam bulan, memaksimumkan kapasitas gudang, meminimumkan saldo akhir mingguan, memaksimumkan penggunaan bahan baku kaso, memaksimumkan penggunaan bahan tambahan yang tersedia perminggu, memaksimumkan jam kerja forklift yang tersedia. Berdasarkan penyelesaian model Goal Programming dapat disusun jadwal produksi optimal yang dapat memenuhi semua tujuan berdasarkan proritas yang ditetapkan dan usulan untuk perbaikan perencanaan produksi.The research aims to create barecore production planning in PT. XXX, use primary data and secondary data on January – May 2017. Goal Programming Method is used determine how many production of each product (barecore product A, B,C) every week per month in order to fulfill the consumer’s monthly demand, maximize production output every week per month, maximize warehouse capacity, minimize weekly balance, maximize available raw material usage per week, maximize additional raw materials usage per week, maximize available forklift working hours. According to the completion of Goal Programming method, optimal production schedule can be arranged  in purpose to fulfill all priority goals that has been set, and a proposal for the improvement of production  planning.
Model Koreksi Kesalahan pada Data Runtun Waktu Indeks Harga Konsumen Kota-kota di Papua Donggori, Mitha Febby R.; Setiawan, Adi; Parhusip, Hanna Arini
d'CARTESIAN:Jurnal Matematika dan Aplikasi Vol 3, No 1 (2014): Maret, 2014
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.52 KB) | DOI: 10.35799/dc.3.1.2014.4011

Abstract

Abstract The Consumer Price Index is used as a measure of inflation. Consumer Price Index data is time series data are often not stationary, causing decision-making related to the data becomes invalid. Consumer Price Index has a different rate of change in each region, as well as for the city of Jayapura, Sorong and Manokwari in Papua. In this paper, Error Correction Model is used to correct short-term imbalances and establish a long term relationship models Consumer Price Index cities - cities in Papua. We use time period : January 2009 to May 2013. To test stationarity  of the data, we use Phillips - Perron unit root test. Engle - Granger cointegration test is performed to determine whether there is a long-term relationship among cities in Papua. Furthermore, the model established by using the Error Correction Method by Domowitz - Elbadawi to correct short- term imbalances and establish long-term relationships model. The obtained Error Correction Models were compared to the results obtained with the bootstrap method . . Keywords : consumer price index, stationarity test, co integration test, error correction model, the bootstrap method Abstrak Indeks Harga Konsumen digunakan sebagai tolok ukur inflasi. Data Indeks Harga Konsumen merupakan data runtun waktu yang seringkali tidak stasioner sehingga menyebabkan pengambilan keputusan yang berkaitan dengan data menjadi tidak valid. Indeks Harga Konsumen memiliki tingkat perubahan yang berbeda di setiap daerah, begitu juga untuk kota Jayapura, Sorong dan Manokwari di Papua. Model koreksi kesalahan digunakan untuk mengoreksi ketidakseimbangan jangka pendek dan membentuk model hubungan jangka panjang Indeks Harga Konsumen kota – kota di Papua pada makalah ini. Periode waktu yang diamati adalah bulan Januari 2009 sampai dengan bulan Mei 2013. Uji stasioneritas data dengan uji akar unit Phillips-Perron, uji kointegrasi Engle-Granger yang dilakukan untuk mengetahui ada tidaknya hubungan jangka panjang di antara kota – kota tersebut. Lebih lanjut, dibentuk model koreksi kesalahan dengan metode Domowitz-Elbadawi untuk mengoreksi ketidakseimbangan jangka pendek dan membentuk model hubungan jangka panjang. Model koreksi kesalahan yang diperoleh dibandingkan dengan hasil yang diperoleh dengan metode bootstrap.   Kata kunci: indeks harga konsumen, uji stasioneritas, uji kointegrasi, model koreksi kesalahan, metode bootstrap
PENGANTAR UJI STABILITAS UNTUK MODEL KOMPETISI ANTARA DUA POPULASI Warsiki, Endang; Parhusip, Hanna Arini
MATEMATIKA Vol 2, No 8 (2005): JURNAL MATEMATIKA
Publisher : MATEMATIKA

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Abstract

The stability analysis for a competition model between two populations is the main topic in this paper. Stability is studied by considering the  eigenvalues of system differential equations according to the logistic equations which are developed for two populations. This paper can also be used as an introduction of the qualitative theory through a stability analysis. Additionally, this paper is proposed to the beginners in differential equations.  
Analisis Indeks Pembangunan Manusia (IPM) Kabupaten/Kota di Provinsi Maluku Utara Menggunakan Indeks Geary C Berdasarkan Resampling Estimasi Densitas Kernel Theo Sarita, Fetriks; Setiawan, Adi; Parhusip, Hanna Arini
Jurnal Teknik Informatika dan Sistem Informasi Vol 5 No 1 (2019): JuTISI
Publisher : Maranatha University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jutisi.v5i1.1582

Abstract

In this study, it is discussed the Regency/City Human Development Index (HDI) in North Maluku Province to determine the spatial influence of HDI. The data used are Regency/City HDI in North Maluku Province from 2013 to 2017. Furthermore, spatial autocorrelation test with Geary C index is used based on resampling by using Estimated Kernel Density. The test is done to determine whether the Regency/City HDI affects the neighboring Regency/City HDI. Based on the results of optimal bandwidth usage (hopt) with a repetition of 10000 times it is obtained p-value 0.0318, 0.0272, 0.0282, 0.0262 and 0.0258, respectively from 2013 to 2017. Thus, there is a spatial between Regencies/Cities in North Maluku Province from 2013 to 2017. In other words, if the HDI in a Regency/City is high then the neighbouring Regency/City HDI tends to be high, and vice versa.
Word Cloud of UKSW Lecturer Research Competence Based on Google Scholar Data Suryasatriya Trihandaru; Hanna Arini Parhusip; Bambang Susanto; Carolina Febe Ronicha Putri
Khazanah Informatika Vol. 7 No. 2 October 2021
Publisher : Department of Informatics, Universitas Muhammadiyah Surakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/khif.v7i2.13123

Abstract

There is a need in the Universitas Kristen Satya Wacana (UKSW) to identify the research competence of their faculties at a study program and University level. To accomplish this requirement, we need to automate the analysis of research output and publications quickly. Research articles are scattered in many publisher systems and journals which may be reputable, unreputable, accredited, and unaccredited. We devised a computer code to quickly and efficiently retrieve publication titles recorded in Google Scholar using a machine learning algorithm. The result display is in the form of a word cloud so that dominant and frequent words will be prominent in the visualization. In determining scientific terms to display, we used a modified version of the word cloud Python module and unmodified Term Frequency - Inverse Document Frequency (TF-IDF) library. The algorithm was tested on publication titles of our study program in UKSW and confirmed directly. The system features the ability to produce a word cloud visualization for an individual faculty, for faculties in a study program, or in the University as a whole. We have not differentiated publication sources, whether they are reputable or unreputable, which might affect the accuracy of competence identification.
Analisis Sistem Antrian dengan Simulasi di Puskesmas Cebongan Kota Salatiga Puput Retno Muninggar; Lilik Linawati; Hanna Arini Parhusip
Jurnal Fourier Vol. 8 No. 2 (2019)
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.2019.82.57-64

Abstract

Tujuan dari penelitian ini adalah untuk mendapatkan model sistem antrian, mengetahui karakteristik sistem antrian, dan mendapatkan hasil analisis simulasi pada sistem antrian di Puskesmas Cebongan Kota Salatiga. Pengumpulan data dilakukan dengan metode observasi langsung pada bagian Pendaftaran, bagian Cek Tekanan Darah dan bagian Periksa di Poliklinik Umum, dan bagian Pengambilan Obat. Hasil penelitian diperoleh masing-masing model antrian di bagian Pendaftaran, bagian Cek Tekanan Darah, dan bagian Pengambilan Obat adalah (G/G/1) : (FIFO/?/?), dimana waktu antar kedatangan dan waktu pelayanan berdistribusi general, jumlah server 1, disiplin antrian FIFO, kapasitas sistem dan kapasitas kedatangan yang tidak terbatas. Model antrian di bagian Periksa yaitu (G/G/2) : (FIFO/?/?), yaitu waktu antar kedatangan dan waktu pelayanan berdistribusi general, jumlah server 2, disiplin antrian FIFO, kapasitas sistem dan kapasitas kedatangan yang tidak terbatas. Kesesuaian hasil simulasi setiap pelayanan sudah mendekati kondisi nyatanya, namun pada bagian Cek Tekanan Darah dan Pengambilan Obat terdapat beberapa karakteristik yang belum sesuai dengan kondisi nyata. Hasil simulasi rata-rata jumlah pasien dalam antrian dan rata-rata waktu pasien dalam antrian pada bagian Cek Tekanan Darah dan bagian Pengambilan Obat lebih besar dari kondisi nyata. [The purpose of this study are to obtain a queuing system model, find out the characteristics of the queuing system, and obtain the results of simulation analysis on the queuing system in Cebongan Health Center, Salatiga City. Data collection is done by direct observation method in the Registration section, the Blood Pressure Check section and the Check section in the General Polyclinic, and the Drug Collection section. The results of the study were obtained by each queue model in the Registration section, the Blood Pressure Check section, and the Drug Extraction section is (G/G/1) : (FIFO/?/?), where the time of arrival and service time are generally distributed, the number of servers 1, FIFO queue discipline, unlimited system capacity and arrival capacity. The queue model in the Check section is (G/G/2) : (FIFO/?/?), which is the time between arrival and general distribution service time, number of servers 2, FIFO queue discipline, unlimited system capacity and arrival capacity. The suitability of the simulation results for each service is close to the actual conditions, but in the Checking Blood Pressure and Drug Taking section there are several characteristics that are not in accordance with the real conditions. The simulation results of the average number of patients in the queue and the average time of patients in the queue at the Blood Pressure Check and Drug Extraction section are greater than the real conditions.]
Simple Forward Finite Difference for Computing Reproduction Number of COVID-19 in Indonesia During the New Normal Suryasatriya Trihandaru; Hanna Arini Parhusip; Bambang Susanto; Yohanes Sardjono
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 5, No 1 (2021): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v5i1.3468

Abstract

The research purpose shown in this article is describing the time dependent reproduction number of coronavirus called by COVID-19 in the new normal period  for 3 types areas, i.e. small, medium and global areas by considering the number of people in these areas.  It is known that in early June 2020, Indonesia has claimed to open activities during the pandemic with the new normal system. Though the number of COVID-19 cases is still increasing in almost infected areas, normal activities are coming back with healty care protocols where public areas are opened as usual with certain restrictions. In order to have observations of spreading impact of COVID-19, the basic reproduction number (Ro)  i.e. the reproduction number (Ro) is the ratio between 2 parameters of SIR model where SIR stands for Susceptible individuals, Infected individuals, and Recovered individuals respectively. The reproduction numbers  are computed as discrete values depending on time. The used research method is  finite difference scheme for computing rate of change parameters in SIR models based on the COVID-19 cases in Indonesia (global area), Jakarta (medium area) and Salatiga (small area) by considering the number of people in these areas respectively. The simple forward finite difference is employed to the SIR model to have time dependent of parameters. The second approach is using the governing linear system to obtain the values of parameter daily. These parameters are computed for each day such that the values of Ro are obtained as function of time. The research result shows that 3 types areas give the same profiles of parameters that the rate of changes of reproduction numbers are decreasing with respect to time. This concludes that the reproduction numbers are most likely decreasing.
Efek Diskritisasi pada Modifikasi Hypocycloid Menjadi CSCPP (Curve Stitching Connected Pseudo Polygon) Hanna Arini Parhusip
Jambura Journal of Mathematics Vol 2, No 2: Juli 2020
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.82 KB) | DOI: 10.34312/jjom.v2i2.4385

Abstract

Tulisan ini membahas tentang pembuatan Curve Stitching berdasarkan efek diskritisasi kurva Hypocycloid yang dimodifikasi. Kurva yang dihasilkan dinamakan Connected Pseudo Polygon (CPP) karena berupa segibanyak yang berbentuk berdasarkan urutan cara menggambar serta diskritisasi titik yang digunakan. Yang dimaksud Curve Stitching disini adalah pembuatan ornamen dengan papan dan benang. Desain ini digunakan sebagai media bermain dalam kegiatan pelajaran atau kuliah matematika. Selain dengan benang, CPP juga dibentuk dengan kawat dan sedotan agar Desain yang sama dapat dibentuk dengan beberapa material yang cocok untuk penyusunan CPP. CPP ini digunakan sebagai media untuk mengilustrasikan inovasi matematika atau ornamen matematika.
Modern Ethnomathematics Mainstreaming through Mathematics Entrepreneurship Using Mathematical Ornaments Hanna Arini Parhusip; Hindriyanto Dwi Purnomo; Didit Budi Nugroho; Istiarsi Saptuti Sri Sri Kawuryan
International Journal on Emerging Mathematics Education IJEME, Vol. 5 No. 2, September 2021
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/ijeme.v5i2.15118

Abstract

Modern ethnomathematics is proposed in this article by introducing curves and surfaces to objects based on commonly used mathematics. There are 2 types of objects, batik and ornament. The object is known as Batima, which means a mathematical motif made in a batik stamp. The same design can be used to design ornaments, souvenirs, accessories or other household items such as glasses, t-shirts and other materials. The formation of ethnomathematics is driven by entrepreneurial activities. The method starts with the expansion of the circular and spherical equations based on the variation of the power form which was originally 2 in the equation to be valued at random (say p). The other used equations are parametric equations, especially the hypocycloid which is extended to both curves and surfaces with spherical coordinates. In addition, derivative operators can be applied. Product manufacturing is carried out by at least 10 household businesses around Salatiga and Jogjakarta and its surroundings. In order to sustain the mainstreaming of modern ethnomathematics, entrepreneurial activities are carried out with existing materials through exhibitions and competitions that are followed. Likewise, the use of social media and marketplaces are explored to mainstream the modern ethnomathematics into society.
Co-Authors A.A. Ketut Agung Cahyawan W Adi Setiawan Adi Setiawan Adrianus Herry Heriadi Atyanta Nika Rukmasari Bambang Susanto Bernadus Aryo Adhi Wicaksono Carolina Febe Ronicha Putri Denny Indrajaya Endang Warsiki Hindriyanto Dwi Purnomo Istiarsi Saptuti Sri Kawuryan Istiarsi Saptuti Sri Sri Kawuryan Istiarsih Saputri Sri Kawuryan Leopoldus Ricky Sasongko Lilik Linawati Magdalena Dwi Puspasari Mitha Febby R. Donggori Nafisah Riskya Hasna Nirmala Ayu Andika Fitri Nugroho, Didit Budi Obed Christian Dimitrio Om Prakash Vyas Petrus Priyo Santosa Puput Retno Muninggar Suryasatriya Trihandaru Theo Sarita, Fetriks Titilias, Y A Wynona Adita Pradani Yohanes Sardjono Yohanes Sardjono Yusuf Kurniawan