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All Journal JURNAL DERIVAT: JURNAL MATEMATIKA DAN PENDIDIKAN MATEMATIKA LEMMA: Letters Of Mathematics Education Seminar Nasional Teknologi Informasi Komunikasi dan Industri BAREKENG: Jurnal Ilmu Matematika dan Terapan Zero : Jurnal Sains, Matematika, dan Terapan JURNAL PENDIDIKAN TAMBUSAI Pelita Eksakta Jurnal Litbang Edusaintech Journal of Mathematics UNP
Riry Sriningsih
Mathematics Departement Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Improved Teacher Scientific Publication Competency Based On Sustainable Professional Development at Tanbisaw Sriningsih, Riry
Pelita Eksakta Vol 1 No 2 (2018): Pelita Eksakta Vol. 1 No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol1-iss02/32

Abstract

Based on observations, the results of questionnaires and discussions with elementary school teachers in Tanbisaw, Kubung Subdistrict, Solok Regency, found two main factors causing the majority of teachers to be heavy and difficult to publish their writings, namely: 1) Motivation and 2) Substance. Most teachers state that procedures for making scientific works and publications have criteria that are too difficult to fulfill or follow. The teacher has not found any material that is worth writing. The teacher stated that they did not have the time to do research and look for reading sources to write. The purpose of this activity is to motivate and improve the competence of teachers in producing scientific publications in carrying out their duties through Sustainable Professional Development. Specifically, the aim is to: 1) direct teachers to produce research ideas, 2) guide teachers in compiling scientific publications, and 3) inform and direct teachers to publish works at national seminars and scientific journals. The activity was held at SDN 02 Tanjung Bingkung, with participants being elementary school teachers consisting of 8 elementary schools, the methods used were: lecture methods, guided training, discussion and direct practice in writing and making scientific papers to be published.
Mathematical Model of Zakat and Low-Tax Policy Effects on Economic Population Muhammad Subhan; Riry Sriningsih
ZERO: Jurnal Sains, Matematika dan Terapan Vol 10, No 1 (2026): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v10i1.28497

Abstract

Many Islamic countries implement low-tax policies, but these often fail to reduce inequality and poverty. Zakat has a function to redistribute wealth, but previous studies fail to explore its dynamic interaction with tax systems. This study builds a mathematical model that describes the combined effects of zakat and low-tax policies on economic population dynamics. We develop a system of differential equations that represents wealthy, middle, and poor populations, then analyze it qualitatively by finding equilibrium points and their stability. Analysis reveals a single asymptotically stable equilibrium point, indicating that zakat effectively reduces the wealth gap, even under a low-tax setting. We also established a threshold condition for the middle-to-poor population ratio, guiding policymakers on designing effective poverty interventions. This study lays a theoretical groundwork that incorporates Islamic financial institutions into poverty reduction strategies.
Spatial Heterogeneity of Tuberculosis Incidence Using Geographically Weighted Negative Binomial Regression (GWNBR) in Indonesia Riry Sriningsih; Mohammad Soleh; Muhammad Subhan; Reni Prima Gusty
ZERO: Jurnal Sains, Matematika dan Terapan Vol 10, No 1 (2026): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v10i1.28500

Abstract

Poisson regression is widely used for count data but relies on the equidispersion assumption, which is often violated in epidemiological data due to overdispersion. Negative Binomial Regression (NBR) addresses this issue by introducing a dispersion parameter. However, both models assume spatial homogeneity of parameters. This study applies Geographically Weighted Negative Binomial Regression (GWNBR) to analyze tuberculosis (TB) cases across 38 provinces in Indonesia in 2024. The response variable is the number of TB cases, with predictors including population density, smoking prevalence (age   15), poverty rate, and number of hospitals. Overdispersion was confirmed (deviance/df = 12,020), justifying the use of NBR. Model comparison shows that GWNBR provides improved fit relative to global models, with lower AIC than the NBR model (716.45 vs 732.29). Spatial heterogeneity was confirmed by the Breusch–Pagan test (BP = 21.011; p  0.01). Provinces exhibit distinct patterns of significant determinants; for example, in West Sumatra, poverty and smoking show strong positive local effects, while in several eastern provinces smoking is not significant. These findings highlight the importance of spatially adaptive TB control policies rather than uniform national strategies.
Co-Authors Alifta Ainurrochmah Annisya Annisya Arnellis Arnellis Athifah Rahmi Atus Armadi Purta Dani, Andrea Tri Rian Dewi Murni Dony Permana Elfira Safitri Eli Yuliza Ermawati Ermawati Fariz Rivalno Helma Helma Helma Helma Hendra Syarifuddin Idhia Sriliana Irma Suryani Iswarnedi Iswarnedi Jamhari Jamhari Khairil Amri Media Rosha Media Rosha Melvy Utari Permadhi Meri Mulyani Minora Longgom Nasution Mirna Mirna Mohammad Soleh Mohammad Soleh Muhammad Subhan Muhammad Subhan Muhammad Subhan MUHAMMAD SUBHAN Mulyadi Mulyadi NARITA YURI ADRIANINGSIH Nazvira, Mutia Nurainun Pulungan putra, farhan maulana Randy Rahayu Melta Raudhatul Jannah A.M Reni Prima Gusty Resti Indrawati Utami Riski Dwi Rianto Putra rizky hamdanih Rozi Wahyudi Saskia Perdani, Ladyra Soleh, Mohammad Soleh Subiono - Vhinasy Andari Wartono Wartono Wartono Wartono Yoga Perdana yudi Arpa