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Training on Creating Interactive Learning Media to Strengthen Integer and Fractional Material for Primary School Teachers of Teacher Working Group IV, X Koto Singkarak Dewi Murni
Pelita Eksakta Vol 3 No 1 (2020): Pelita Eksakta Vol. 3 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol3-iss1/94

Abstract

Tahap berpikir siswa pada tingkat sekolah dasar berada pada tahap operasional konkrit sehingga dalam belajar mereka akan lebih mudah memahami jika menggunakan media yang mereka lihat dan kerjakan langsung. Berdasarkan observasi dan diskusi dengan beberapa guru Sekolah Dasar, khususnya untuk materi operasi bilangan bulat dan pecahan sebagian besar guru belum menggunakan media pembelajaran yang baik dalam pembelajaran. Hal ini disebabkan guru belum terbiasa dan terlatih dalam membuat dan menggunakan media pembelajaran interaktif. Akibatnya siswa masih kesulitan dalam memahami operasi bilangan bulat dan pecahan. Untuk mengatasi masalah tersebut maka tim pengabdian melaksanakan pelatihan kepada guru-guru SD untuk membuat media pembelajaran interaktif serta mempraktekkan penggunaan media tersebut . Hasil dari pelatihan telah dapat meningkatkan kompetensi guru yaitu pemahaman dan keterampilan guru dalam membuat media interaktif serta mengaplikasikannya dalam pembelajaran operasi bilangan bulat dan pecahan.
PERBANDINGAN DAN KARAKTERISTIK BEBERAPATES KONVERGENSI PADA DERET TAK HINGGA Dewi Murni
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 18 No. 02 (2017): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6092.378 KB) | DOI: 10.24036/eksakta/vol18-iss02/71

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The infinite series is an infinite sum of elements of a sequence of real numbers. A main thing related to the infinite series is to determine its convergence (convergent or divergent). Purpose this research were to analyze and determine a comparison and characteristics of each convergence test, such as: D'Alembert test, Raabe test, Gauss's test, Cauchy's Root Test, and Logarithm Test. A method used descriptive method by analyzing theories relevant to the problems discussed and based on literature study.The results showed that each convergence test had characteristics for its convergence test. The D'Alembert Ratio test is easier to use in a series that contains the formn! ,rn, and nn. Raabe test used if the ratio test obtained value limit comparison is, so the test does not give conclusion. Whereas logarithmic test is used in the infinite series that contains the logarithmic form. The Cauchy n-th root test, can be used to determine the absolute series convergence of the nth power
Efektivitas Penggunaan Bahan Ajar Kalkulus Berbasis ICT Terintegrasi Masalah Kontekstual untuk Meningkatkan Aktivitas, Motivasi, dan Hasil Belajar Mahasiswa Dewi Murni; Helma Helma; Mirna Mirna
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 4 No 2 (2020): JEP (Jurnal Eksakta Pendidikan)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jep/vol4-iss2/502

Abstract

This research is part of the development research on Calculus teaching materials. The purpose of this study was to see the effectiveness of using Technology Information Comunication-based calculus teaching materials integrated contextual issues, especially to find out the activities and motivation of student learning while using the calculus teaching materials. Instruments for collecting data in research observation sheets and questionnaires. The data analysis technique used is descriptive statistical analysis. The results of the study are teaching materials Calculus can activate students in lectures and increase students' skills in utilizing information technology progress and can increase learning motivation, student perseverance and enthusiasm in Calculus lectures.
MENENTUKAN FORMULASI ASURANSI JIWA DWIGUNA MENGGUNAKAN HUKUM HELIGMAN-POLLARD DENGAN KASUS MULTIPLE LIFE Wanari Intan Dwi Putri; Muhammad Subhan; Dewi Murni
Journal of Mathematics UNP Vol 3, No 1 (2018): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (903.492 KB) | DOI: 10.24036/unpjomath.v3i1.4669

Abstract

Abstract – One of the problems that can happen to the insurance company is the inability of the company to pay compensation to the insurance participants in the event of a claim. For that, it takes a formulation of premium calculation so that the premium value can be calculated properly. Calculation of net premium using Heligman-Pollard law. The calculation of premiums by using Heligman-Pollard law begins with creating mortalitaas tables, making the cash value of dual-purpose annuity insurance with dependents for n years, calculating net periodic premiums on dual life insurance with multiple life cases, calculating annual net premiums on dual-life insurance with multiple cases life. By using this Heligman-Pollard law, insurance premiums will be grouped into 3 age groups on the new mortality table.
Peramalan Produksi Ikan Laut di Kabupaten Pesisir Selatan Menggunakan Metode Pemulusan Eksponensial Tripel Tipe Brown Rimpi Oktaria; Dewi Murni; Helma Helma
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.673 KB) | DOI: 10.24036/unpjomath.v4i2.6319

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Abstract – Indonesia is a maritime country that has a lot of potential wealth of the sea, one of them is fish production. In West Sumatra, Pesisir Selatan is one of the Region that have a lot of fish production. It is beneficial for the local government to increase the GDP. Therefore, Pesisir Selatan marine fish production for the next few years needs to be foreseen for the government to make planning and appropriate action so the local revenue and foreign exchange could be improved. The purpose of this research was to obtain a forecasting model and predict fish production of Pesisir Selatan in 2015 until 2019. The forecasting method used is triple exponential smoothing method of Brown type. Based on the research results, it is estimated the Pesisir Selatan fish production for 2015 to 2019 has increased.Keywords  –  Fish Production, Forecasting, Tripel Exponential Smoothing, Brown Type
Optimasi Portofolio dengan Lexicographic Goal Programming pada Bursa Efek Indonesia Nilam Purnama Sari; Muhammad Subhan; Dewi Murni
Journal of Mathematics UNP Vol 6, No 1 (2021): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (841.268 KB) | DOI: 10.24036/unpjomath.v6i1.11561

Abstract

Abstract – A portfolio is a collection of investment opportunity that aims to select a combination of efficient of shares owned, in the form of profit (return) is optimal in forming the optimal portfolio, there are three criteria that must be considered, maximizing the total funds that, maximizing expected return, minimizing risk market (systematic risk coefficients). One model that can solve this problem is lexicographic goal programming. research purposes is how to obtain a stock portfolio optimation with lexicographic goal programming and the proportion of the funds invested. The method used is descriptive method that analyzes the theories related to lexicographic goal programming. The result obtained is an optimum portfolio.Keywords – investment, portfolio, return, the coefficient of systematic risk, lexicographic goal programming
Portofolio Mean Variance Efficient Dua Konstrain Pada 15 Saham Indeks LQ45 Fariz Rivalno; Dewi Murni; Riry Sriningsih
Journal of Mathematics UNP Vol 4, No 1 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (228.087 KB) | DOI: 10.24036/unpjomath.v4i1.6295

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Abstract – Portfolio is an investment tool in stocks that divide capital into a number of stocks according to the weight or percentage determined by the investor. For that, investors need to establish an optimal portfolio. One of the optimal portfolio methods is Mean Variance Efficient Two Constraints Portfolio. The purpose of this study is to obtain a formula for determining the investment weight and its application onMean Variance Efficient Two Constraints Portfolio to obtain minimal investment risk from 15 LQ45 Index stocks. The type of this research is applied research. The type of data is secondary data, in the form of closing pricestocks on the LQ45 Index period of November 9th, 2016 - March 2nd, 2017. Steps in the establishment of a portfolio is calculate the return, average return, variance return, covariance return, and find weight investment through formula on the portfolio. The result of this research is obtained a formula for determining the investment weight on Mean Variance Efficient Two Constraints Portfolio and formed an optimal portfolio on 15 LQ45 Index stocks. The portfolio provides 0.07% average return and 0.01% risk. Keywords –Constraint, LQ45 Index, Portfolio, Return, Stocks
Analisis Sistem Antrian pada Loket Pelayanan Cepat (Fast Track) di Kantor BPJS Kesehatan Cabang Padang Envi Sari Oktaviani; Dewi Murni
Journal of Mathematics UNP Vol 4, No 4 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (646.466 KB) | DOI: 10.24036/unpjomath.v4i4.7915

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Abstract— Queue is a condition when some persons are waiting for their turn for a service, as often occured at the office of BPJS Kesehatan (Healthcare and Social Insurance Security Agency) in Padang because the presence of large numbers of the customers of JKN-KIS (National Healthcare Insurance – Healthy Indonesians Card) program. This research aimed to know what kind of queuing models already applied and how optimum the performance of the queuing system. This research is an applied research using primary data. The data is analysed by way of calculating the average time of arrival of the customers and average time of services, conducting distribution match test by applying Kolmologrov Smirnov test, and then analysis. The research found that the queuing models being applied are: (M/M8):(GD/∞/∞) and the number of officers at the fast track service counters needs to be increased to be more optimal. Keywords— Queue, Kolmologrov Smirnov Test, Single Channel Single Phase, Multiple Channel Single Phase.
Prediksi Peluang Perpindahan Merek Handphone Menggunakan Rantai Markov Di RW 03 Air Tawar Barat Padang Mamad Hardiyanto; Yerizon Yerizon; Dewi Murni
Journal of Mathematics UNP Vol 6, No 1 (2021): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (869.805 KB) | DOI: 10.24036/unpjomath.v6i1.11556

Abstract

Abstract –Variety mobile phone brand on the market,gives a great probability on consumers to make mobile phone brand switching from one brand to another brand. Thus giving a challenge to the mobile phone companies to seek measures should be made to obtain or retain consumers. The purpose of this research was to know Markov chain model on the mobile phone brand switching in RW 03 Air Tawar Barat Padang and the probability handphone brand switching in the future.This type of research is applied research using Markov chain analysis. Based on the research results, obtained from the Markov chain models displacement mobile phone as seen in matrix P and consumer probability switching on several mobile phone brands in the future is the brand “Others” (23.68%), Nokia (21.05%), Samsung (17.21%), Blackberry (13.35%), iPhone (10.13%), Oppo (7.74%), and brand Advan (6.85%). Keywords  – Markov Chain, Probability mobile phone brand switching.Abstract –Variety mobile phone brand on the market,gives a great probability on consumers to make mobile phone brand switching from one brand to another brand. Thus giving a challenge to the mobile phone companies to seek measures should be made to obtain or retain consumers. The purpose of this research was to know Markov chain model on the mobile phone brand switching in RW 03 Air Tawar Barat Padang and the probability handphone brand switching in the future.This type of research is applied research using Markov chain analysis. Based on the research results, obtained from the Markov chain models displacement mobile phone as seen in matrix P and consumer probability switching on several mobile phone brands in the future is the brand “Others” (23.68%), Nokia (21.05%), Samsung (17.21%), Blackberry (13.35%), iPhone (10.13%), Oppo (7.74%), and brand Advan (6.85%). Keywords  – Markov Chain, Probability mobile phone brand switching.
Pengukuran Efisiensi Kinerja Komoditi Industri Sandang Kabupaten Agam Menggunakan Data Envelopment Analysis (DEA) Rahmatika Rahmatika; Dewi Murni; Yerizon Yerizon
Journal of Mathematics UNP Vol 4, No 1 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.548 KB) | DOI: 10.24036/unpjomath.v4i1.6276

Abstract

Abstract –Clothing industry is the dominant industry inAgam. The performance of the commodities industry clothing can be determined from input and output factors. The measurement of efficiency is a way to see just how efficient use of inputs and outputs. All this time, it has not been done the measurement of efficiency of the performance of clothing industries in Agam. The measurement of the efficiency of the performance of the industries clothing agam purpose to look at the commodities industry efficient or inefisien. The measurement of efficiency can be using by the method of DEA using CRS and VRS model. For a DMU inefisien can be done by doing a calculation DMU improvement targets that leverages the value of slack. The calculation of the value of the target will be the calculation of the efficiency of the back which resulted in the DMU inefisien be efficient.Keywords – Data Envelopment Analysis, DEA CRS, DEA VRS, Slack, Target.