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All Journal Jurnal Matematika Buletin Udayana Mengabdi Jambura Journal of Mathematics Udayana Journal of Social Sciences and Humanities (UJoSSH) Gema Wisata
Ni Ketut Tari Tastrawati
Faculty Of Mathematics And Natural Sciences, Udayana University
Humanities Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences

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MODEL SIKLUS BISNIS IS-LM DENGAN PERSAMAAN DIFERENSIAL TUNDAAN Ni Ketut Tari Tastrawati
Jurnal Matematika Vol 2 No 1 (2012)
Publisher : Mathematics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JMAT.2012.v02.i01.p19

Abstract

Sistem dinamik dapat dikembangkan dalam berbagai bidang kehidupan.Seperti dalam bidang ekonomi, salah satu sistem dinamik dalam bidang iniadalah model siklus bisnis. Ada beberapa model siklus bisnis, diantaranya modelIS-LM. Dalam penelitian ini akan dianalisa model siklus bisnis IS-LM dengan parametertime delay. Perbedaan antara keputusan investasi dengan implementasinyamenganjurkan untuk merumuskan model siklus bisnis IS-LM yang baru, yang memperlihatkanbahwa dinamika model sangat bergantung pada parameter time delay(waktu persiapan periode investasi). Dalam penelitian ini akan digunakan teoremabifurkasi Hopf untuk memprediksi kejadian dari limit cycle untuk parameter timedelay, yang menggambarkan siklus dari model IS-LM.
Analisis Sensitivitas dalam Optimalisasi Keuntungan Produksi Busana dengan Metode Simpleks A.A.Sri Desiana Shintya Dewi; Ni Ketut Tari Tastrawati; Kartika Sari
Jurnal Matematika Vol 4 No 2 (2014)
Publisher : Mathematics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JMAT.2014.v04.i02.p48

Abstract

The main goal of every company in business is the optimal profit. Challenges that often faced by companies in achieving maximum profit is the difficulty of combining every available resources of the company. The purpose of this study was to determine the maximum profit that can be obtained by Ls Garment using the simplex method and determine the impact of the changes that occur in the objective function coefficients and constants right side constraints to the optimal solution. Based on the results of the application method used, it was obtained maximum profit of Rp. 1.893.184,00 per day with the amount of Dress Payung, Celana Aladdin XL, Celana Aladdin XXL, Celana Aladdin ¾, Dress Kerut, and Daster Haji respectively are 34, 60, 68, 96, 26, and 26 pieces. Profit remain in optimal condition if the change of coefficients value at the objective function is less than or equal to the coefficient of the objective function at the initial model.
Faktor-faktor yang Memengaruhi Kualitas Pelayanan Jaminan Kesehatan Bali Mandara Made Susilawati; Ni Ketut Tari Tastrawati; Ni Nyoman Widiasih
Jurnal Matematika Vol 4 No 1 (2014)
Publisher : Mathematics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JMAT.2014.v04.i01.p40

Abstract

Penelitian ini bertujuan untuk mengetahui faktor-faktor yang memengaruhi kualitas pelayanan jaminan kesehatan Bali Mandara sehingga dapat memberikan pertimbangan bagi Pemerintah daerah dalam rangka perencanaan peningkatkan kualitas kesehatan. Penelitian ini mengambil responden sebanyak 150 resoponden yang menggunakan jaminan kesehatan Bali Mandara. Dalam penelitian ini, 27 variabel yang memengaruhi kualitas pelayanan jaminan kesehatan Bali Mandara dianalisis dengan analisis faktor yang mereduksi sejumlah variabel yang ada menjadi sedikit/berarti dan menamakannya sebagai faktor. Hasil dalam penelitian ini menunjukkan bahwa terdapat 6 faktor yang memengaruhi kualitas pelayanan jaminan kesehatan bali Mandara dengan sumbangan kumulatif sebesar 76.021%. Faktor yang paling dominan adalah faktor Bukti Langsung dengan nilai eigen sebesar 10.165 atau faktor ini mampu menjelaskan 37.648% dari seluruh total faktor-faktor yang memengaruhi kualitas pelayanan jaminan kesehatan Bali Mandara.
Motivasi Berlatih Pemain Silat Keluarga Silat Nasional Perisai Diri - Provinsi Bali . Sukrianingsih; Eka N. Kencana; Tari Tastrawati
Jurnal Matematika Vol 8 No 1 (2018)
Publisher : Mathematics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JMAT.2018.v08.i01.p94

Abstract

Silat is a class of indigenous martial arts found in some countries in Southeast Asia such as Indonesia, Malaysia, Brunei, Singapore, and south of Thailand. In Indonesia, silat is organised by several silat organisations according to its style (aliran) or school (perguruan). This essay is aimed to study the motivation of playing silat and classify it into its motivational factors by applying confirmatory factor analysis. The data were collected by distributing self-administered questionnaire to 180 members of Perisai Diri at Bali Province, one silat school in Indonesia. Six factors were confirmed as motivational factors for playing silat. These factors, order decreasingly according to their variance explained, are Appreciation of Indigenous Culture, Personal Achievement, Self-Defence, Recreation, Health Maintenance, and Mental & Spiritual Building.
Efektifitas Metode Nadir Compromise Programming dalam Menentukan Nilai Optimum Portofolio Saham Wandi Noviyanto; Ni Ketut Tari Tastrawati; Kartika Sari
Jurnal Matematika Vol 6 No 1 (2016)
Publisher : Mathematics Department, Faculty of Mathematics and Natural Sciences, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JMAT.2016.v06.i01.p67

Abstract

Nadir Compromise Programming (NCP) is one of method that can be used to solve multiobjective problem using certain parameter. One of the problem that can be solved by these method is to get the optimum value of stock portfolio. The purpose of this study was to determine on what value of parameter among six values of parameter, NCP models effective in determining the optimum value of the stock portfolio. The data used in this research was secondary data in the form of daily data from the price of 6 types of stocks from October 2013 to October 2015. In this study, the optimum value of the stock portfolio was calculated by the the NCP model at 6 parameter values, i.e. 1, 10, 100 , 1000, 10000, and 100000. As a result of this study showed that the NCP model effective in determining the optimum value of the stock portfolio on parameter 1.
STUDI PENINGKATAN PENGETAHUAN GURU MENGENAI SITASI DALAM PENYUSUNAN KARYA TULIS ILMIAH UNTUK MEMINIMALKAN PLAGIARISM K. Sari; D. P. E. Nilakusmawati; N. K. T. Tastrawati; L. G. Astuti; I. N. Widana
Buletin Udayana Mengabdi Vol 16 No 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.64 KB)

Abstract

Tujuan kegiatan pengabdian kepada masyarakat ini adalah untuk mengetahui: pengaruh pemberian pelatihan terhadap peningkatan pengetahuan guru mengenai aturan tata cara mensitasi dan plagiarisme.meningkatkan pemahaman guru mengenai tata cara sitasi. Kegiatan dilakukan di SMK Farmasi Bintang Persada Denpasar dan SMK Farmasi Bintang Persada Tabanan, dengan subjek kegiatan adalah guru-guru semua bidang studi pengampu mata pelajaran di kedua sekolah tersebut, dengan rincian 16 orang guru SMK Farmasi Denpasar dan 9 orang guru SMK Farmasi Tabanan. Metode yang digunakan adalah metode one group pretest-posttest Instrumen yag digunakan dalam kegiatan ini adalah soal pre-test dan post-test. Sebagai hasil dari kegiatan ini diperoleh terdapat peningkatan yang signifikan mengenai pengetahuan guru-guru tentang aturan tata cara mensitasi dan plagiarisme setelah diberikan pelatihan
Forecasting Foreign Tourist Visits to Bali Using Bayesian Vector Autoregression with Normal-Inverse-Wishart Prior I Wayan Sumarjaya; Ni Ketut Tari Tastrawati
Udayana Journal of Social Sciences and Humanities Vol 1 No 2 (2017): UJoSSH, September 2017
Publisher : Research and Community Services Institutes of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (320.689 KB) | DOI: 10.24843/UJoSSH.2017.v01.i02.p02

Abstract

As a major tourist destination, Bali has become an icon for tourism in Indonesia. In general, the number of foreign tourist visits shows an increasing trend. However, there is considerable fluctuation in the number of visits which is affected by season. In another word, there is a stochastic trend in the number of tourist visits. Policy makers need a method to predict this tourist visits. A commonly used method to predict tourist visits is time series analysis. Time series analysis has been used in various fields such as finance, business, engineering, meteorology, geophysics, and tourism, to name but a few. Research on forecasting tourist visits usually uses univariate data. This research aims to forecast the number of foreign tourist visits from four major countries such as Asia Pacific, ASEAN, America, and Europe simultaneously using Bayesian vector autoregression with normal-inverse-Wishart prior. First data is plotted to see its characteristics. Then the data is modeled using Bayesian vector autoregression. In this stage normal-inverse-Wishart prior is used. Next, Markov chain Monte Carlo is conducted to make a prediction from the posterior distribution. The forecast suggests that the number of tourist visits in general increased, albeit some fluctuation in some months.
Penerapan Model Multi Channel Single Phase dalam Optimisasi Layanan Restoran Cepat Saji Nurahmadiningsi Nurahmadiningsi; Nadia Manurung; Nico Dhemus; Dinda Setyasari; Dittha Kumari; Ni Ketut Tari Tastrawati
Gemawisata: Jurnal Ilmiah Pariwisata Vol. 20 No. 3 (2024): Jurnal Ilmiah Pariwisata
Publisher : Sekolah Tinggi Ilmu Ekonomi Pariwisata Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56910/gemawisata.v20i3.374

Abstract

A queue is a waiting line from a service facility. Long queues are caused by the number of consumers who come more than the number of service facilities, it is necessary to apply a queuing model to overcome long queues. This research was conducted at Mc Donald's Jimbaran fast food restaurant because the fast food restaurant is located in a tourist and lecture area, causing queues. The current condition at Mcdonald’s Jimbaran there are more than one service facility, the discipline of the first come first service (FCFS) queue is in accordance with the single-phase multi-channel. After analyzed with data from 31 May 2022 to 06 June 2022 for 7 days. Based on the results of the analysis obtained, it can be concluded that at lunch time requires 4 services while at dinner time only requires 2 service.
Kombinasi Metode Bilqis Chastine Erma dan Sumathi Sathiya dengan Metode Stepping Stone untuk Optimasi Masalah Transportasi Mardiansah, Rifki; Tastrawati, Ni Ketut Tari; Sari, Kartika
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.v6i1.23857

Abstract

Transportation problems experienced by UD. Raja Wangi in distributing Maha Dewa fragrant incense. UD. Raja Wangi incurs high transportation costs due to irregular direct distribution patterns and has not paid attention to the route to be passed. One way to solve the problem is to use transportation methods to get the optimal distribution route so that the transportation costs incurred are minimal. This study aims to solve transportation problems using the Bilqis Chastine Erma (BCE) method and the Sumathi Sathiya method with the Stepping Stone method to obtain the optimal solution. The Bilqis Chastine Erma (BCE) and the Sumathi Sathiya methods are indirect methods of solving transportation problems by obtaining an initial solution. After obtaining the initial solution, the Stepping Stone method is used to obtain the optimal solution. The results showed that the optimal solution using the Stepping Stone method based on the initial solution of the Bilqis Chastine Erma (BCE) method obtained a total transportation cost of Rp42,937.00 while the optimal solution using the Stepping Stone method based on the initial solution of the Sumathi Sathiya method obtained a total transportation cost of Rp38,727.00. In addition, the Sumathi Sathiya method gets a difference in total transportation costs of Rp11,790.00 or 23% of the total transportation costs incurred by the UD. Raja Wangi. Therefore, the Sumathi Sathiya method is the best solution for minimizing transportation costs.
Co-Authors . Sukrianingsih A. A. I. DWI FIBRIAYORA A.A.Sri Desiana Shintya Dewi AA Sudharmawan, AA ADE AYU NITA DEVI AGUS EKA ARIESTA AHMAD SAIFUDDIN AJENG FITRAH SANI ANNISAA’ FEBRIANTI Desak Putu Eka Nilakusmawati Dinda Setyasari Dittha Kumari Eka N. Kencana EKA N. KENCANA ELFRIDA RIANI TSANI G. K. GANDHIADI GEDE ADITYA SURYA WIBAWA GEDE SURYAWAN I GUSTI AYU KOMANG KUSUMA WARDHANI I GUSTI AYU VIDYARA VRAJESHVARI I GUSTI MADE AYU ANGGUN TIARA PRATINI I KADEK TEGUH PRADANA I KOMANG TRY BAYU MAHENDRA I MADE EKA DWIPAYANA I Nyoman Widana I Putu Eka Nila Kencana I PUTU YUDI PRABHADIKA I WAYAN RADIKA APRIANA I Wayan Sumarjaya I WAYAN YOGA ASTAWA IDA AYU GDE KHASMANA PUTRI Ida Ayu Putu Ari Utari Ida Ayu Putu Ratna Dewi ISTIQOMAH ISTIQOMAH JUITA HARYATI SIDADOLOG K. Sari Kartika Sari KARTIKA SARI Komang Dharmawan L. G. Astuti LAILATUL RIZKIANA LUH PUTU IDA HARINI MADE NITA DWI SAWITRI Made Susilawati Mardiansah, Rifki MIKHA LAYASISA TARIGAN Nadia Manurung NGURAH P. DWIPAYANA NI KADEK DESI PUJA ANTARI Ni Luh Putu Suciptawati NI MADE DINDA PRATIWI Ni Nyoman Widiasih NI PUTU DEVIYANTI NI PUTU INTAN PUSPA DEWI NI WAYAN NI WAYAN EKANTARI Nico Dhemus NOVITA TRIANI HAMMA Nurahmadiningsi Nurahmadiningsi PUTRI BELLA SAGITA SANG AYU PUTRI INDRIA RANTASARI SISILIA MARTINA UTAMI AGUSTINI Wandi Noviyanto YOHANA Th.V. SERAN