Article Per Year (5 Year)
p-Index From 2021 - 2026
2.621
P-Index
This Author published in this journals
All Journal Jurnal Teliska Jurnal Ampere PENDIPA Journal of Science Education JUTIS : Jurnal Teknik Informatika Pelita Eksakta Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Abdimas Bina Bangsa Publikasi Hasil Pengabdian Kepada Masyarakat. UNP Journal of Statistics and Data Science Teaching English and Language Learning English Journal Indonesian Journal of Statistics and Its Applications
Dina Fitria, Dina
Unknown Affiliation
Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Physics Social Sciences Other

Published : 20 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 20 Documents
Search

 1   2 
Application of Singular Spectrum Analysis in Predicting Rupiah Exchange Yuan Hendrawan, Muhammad; Zilrahmi, Zilrahmi; Kurniawati, Yenni; Fitria, Dina
Indonesian Journal of Statistics and Applications Vol 9 No 1 (2025)
Publisher : Statistics and Data Science Program Study, IPB University, IPB University, in collaboration with the Forum Pendidikan Tinggi Statistika Indonesia (FORSTAT) and the Ikatan Statistisi Indonesia (ISI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/ijsa.v9i1p75-85

Abstract

The exchange rate between two countries is the price of the currency used by residents of these countries to trade with each other, the relationship between the Rupiah exchange rate and the Yuan is one of the important aspects in the dynamics of international trade. Therefore, forecasting the exchange rate is important as an effort to predict the exchange rate of Rupiah against Yuan in the future. The method used for forecasting is Singular Spectrum Analysis, namely decomposition and reconstruction. The accuracy of the resulting forecast is measured using the Mean Absolute Percentage Error criterion. The exploration results obtained are forecasting accuracy based on the Mean Absolute Percentage Error value of 2.15% with a window length of 23 which identifies that the forecasting results are accurate and effective. Forecasting is said to be accurate if the Mean Absolute Percentage Error value is lower than 10% and close to 10%
Pemeriksaan TiLV (Tilapia Lake Virus) Pada Ikan Nila (Oreochromis niloticus) Budidaya Fitria, Dina; Fathonah, Deffya; Afrianti, Rini; Turrohmah, Azizah; Mujaidiah; Destiana, Anggari Linda; Day, Dafzel; Astuti, Indri
PendIPA Journal of Science Education Vol 9 No 2 (2025): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.2.310-317

Abstract

Nile Tilapia (Oreochromis niloticus) is highly sought after by Indonesian consumers and is one of the leading commodities cultivated in freshwater. However, tilapia farming still frequently encounters challenges that lead to a decline in production, one of which is infection by pathogens such as Tilapia Lake Virus (TiLV). TiLV can infect fish in waters with temperatures above 25°C, with mass mortality peaking at 30°C, reaching a 50% death rate. Proper handling and control measures are essential to manage TiLV outbreaks effectively. TiLV detection in fish can be conducted using the Polymerase Chain Reaction (PCR) method. PCR-based virus detection is a diagnostic technique that identifies the presence of viral genetic material with high specificity and accuracy. This study aimed to detect TiLV infection in farmed Nile tilapia. The procedures included sample collection, necropsy, organ fixation, RNA extraction, PCR amplification, electrophoresis, and gel documentation analysis. Based on the PCR results, Nile tilapia samples tested positive for TiLV infection, as indicated by the presence of a 250 bp DNA band in the gel documentation system, aligning with the TiLV positive marker. Among the three fish showing suspected TiLV symptoms, two (66.6%) were confirmed infected.
ANALISIS PEMBAGIAN ZONA PROTEKSI PADA JARINGAN DISTRIBUSI 20 kV PENYULANG MERANTI GI BUNGARAN UNTUK MENINGKATKAN PELAYANAN KE KONSUMEN Fitria, Dina; Maulana, Muhammad Arif
Jurnal Ampere Vol. 5 No. 2 (2020): JURNAL AMPERE
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/ampere.v5i2.5056

Abstract

Not all feeders of the 20 kV distribution network distribution of the protection zone work well, one of which is the Meranti feeder. Meranti feeders have a high failure of protection zone coordination. The feeder with the division of 6 protection zones has failed coordination of the protection zone 33 times in 2017. Where protection in zone 4, zone 5 and zone 6 always trips together with protection zone 3. This causes the continuity of service to be disrupted because the area is not disturbed too. go out too. From the analysis, it is found that the failure of coordination of protection relays in zone 4, zone 5 and zone 6 is caused because in zone 3 protection the amount of time setting is the same as zone 4, zone 5 and zone 6, namely 0.05 tms. And the coordination of the protection settings is said to be good if the downstream relay setting is faster than the upstream side, so that in setting the relay on the Meranti feeder it starts from the end protection relay with the fastest time (0.05 tms) and upstream can increase each stage by 0 , 3 secondsABSTRAK Tidak semua penyulang jaringan distribusi 20 kV pembagian zona proteksinya bekerja dengan baik, salah satunya adalah penyulang Meranti. Penyulang Meranti memiliki kegagalan koordinasi zona proteksi yang masih tinggi. Penyulang dengan pembagian 6 zona proteksi  tersebut memiliki kegagalan koordinasi zona proteksi sebanyak 33 kali pada tahun 2017. Dimana proteksi pada zona 4, zona 5 dan zona 6 selalu trip bersamaan dengan proteksi zona 3. Hal ini menyebabkan continuitas pelayanan terganggu karena daerah yang tidak terganggu juga ikut padam. Dari hasil analisis didapatkan bahwa kegagalan koordinasi relay proteksi pada zona 4, zona 5 dan zona 6 disebabkan karena pada proteksi zona 3 besaran setting waktunya sama dengan zona 4, zona 5 dan zona 6 yaitu 0,05 tms. Dan koordinasi setting proteksi dikatakan baik apabila setting relai disisi hilir lebih cepat dari sisi hulu, sehingga dalam melakukan setting relai pada penyulang Meranti dimulai dari relai proteksi paling ujung dengan waktu paling cepat (0,05 tms) dan ke hulu dapat naik setiap tahap sebesar 0,3 detik.
Nagari Tanjung Balik Menuju Digitalisasi Data Syafriandi, Syafriandi; Amalita, Nonong; Vionanda, Dodi; Fitria, Dina; Zilrahmi, Zilrahmi; Yarman, Yarman
Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Vol 22, No 3 (2022): Suluah Bendang: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/sb.03280

Abstract

Kegiatan pembangunan hendaknya dilaksanakan dengan menggunakan perencanaan yang tepat. Perencanaan ini memerlukan informasi yang diperoleh dengan adanya data.  Nagari Tanjung Balik Kecamatan X Koto Singkarak merupakan salah satu nagari yang termasuk dalam Kecamatan X Koto Singakarak, Kabupaten Solok. Untuk perencanaan pembangunan, nagari ini memerlukan adanya informasi dan data. Namun, nagari ini tidak memiliki akses ke data sektoral yang terhimpun di BPS. Di sisi lain, nagari ini juga dihadapkan pada keterbatasan sumber daya yang memiliki pengetahuan tentang Statistika. Oleh karena itu, tim pengabdi melaksanakan Kegiatan Pengabdian kepada Masyarakat di Nagari Tanjung Balik untuk membantu mengatasi kedua masalah di atas.  Dari kegiatan pengabdian ini, pemerintah Nagari Tanjung Balik memiliki database yang terbaru, akurat, dan mudah diakses yang bisa digunakan untuk mengetahui informasi yang detail tentang masyarakat nagari ataupun untuk memetakan potensi dan masalah di nagari. Begitu pula, dari kegiatan ini,  pemerintah nagari telah memiliki kader yang bisa melakukan pengumpulan data di waktu yang akan datang dengan menggunakan aplikasi RSN dan mengelola database yang telah dibangun.
Pemetaan Intensitas Gempa Bumi di Wilayah Sumatera Barat Menggunakan Model Epidemic Type Aftershock Sequence Spatio-Temporal Fikra, Hidayatul; Fitria, Dina; Nonong Amalita; Tessy Octavia Mukhti
UNP Journal of Statistics and Data Science Vol. 2 No. 2 (2024): UNP Journal of Statistics and Data Science
Publisher : Departemen Statistika Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/ujsds/vol2-iss2/171

Abstract

The random spatial and temporal occurrence of earthquakes means that this are still being researched from a seismological and stochastic perspective. Point processes are examples of stochastic processes which explain seismic activity, one of them is Epidemic Type Aftershock Sequence (ETAS) model. It lackness ignores the location or spatial component of. Consequently, the components of time, location, and magnitude will be taken into consideration when discussing the ETAS model in this study. The spatio-temporal model is the name given to this concept. Therefore, in this research,mapping of earthquake intensity will be carried out in the West Sumatra region using the spatio-temporal ETAS model stated in conditional intensity function with eight parameters. The data used are earthquake events in the West Sumatra region with a magnitude threshold of 4 SR and a depth of ≤ 70 km for the period January 2000 to January 2024. Parameter model estimated using the maximum likelihood method and solved using the Davidon Fletcher Powell algorithm. The result shows area of West Sumatra with high earthquake intensity is coastal area, namely West Pasaman, Padang, Mentawai Islands and the South Pesisir. This makes the area vulnerable to seismic disasters
Comparison of K-Means and K-Medoids in Clustering Regency/City in West Sumatra Province Based on Environmental Indicators Robiati, Silfi; Fitria, Dina; Vionanda, Dodi; Sulistiowati, Dwi
Indonesian Journal of Statistics and Applications Vol 8 No 2 (2024)
Publisher : Statistics and Data Science Program Study, IPB University, IPB University, in collaboration with the Forum Pendidikan Tinggi Statistika Indonesia (FORSTAT) and the Ikatan Statistisi Indonesia (ISI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/ijsa.v8i2p191-201

Abstract

The Environmental Quality Index is an index that describes the condition of environmental management results nationally, and generalises from all regencies/cities and provinces in Indonesia. Although the Environmental Quality Index of West Sumatra Province has increased, there are still regencies/cities in West Sumatra Province have decreasing Environmental Quality Index. Therefore, it is necessary to conduct further analysis, one of which is to form a group of regencies/cities into a group according to their similarities or characteristics. This study aims to compare the K-Means and K-Medoids methods in grouping regencies/cities in West Sumatra Province based on environmental quality indicators in 2023. The data used in this research is secondary data, which is orginally the publication of Central Bureau of Statistics namely Sumatera Barat Dalam Angka in 2024. The research compares the K-Means cluster method and the K-Medoids cluster method. It concludes K-Means better than K-Medoids methods based on DB index with three clusters. First cluster has 12 regencies/cities with a high average air quality index, the second cluster has 6 regencies/cities that have small amounts of waste, and the third cluster has 1 city with a high average water quality index and land quality index, but a large amount of waste.   Keywords: Cluster, Comparison, Environmental, K-Means, K-Medoids
Application of Area Sampling Frame for Digitizing Household Data in Talawi Mudiak to Support Sustainable Development Goals Syafriandi, Syafriandi; Fitria, Dina; Amalita, Nonong; Kurniawati, Yenni; Permana, Dony; Fitri, Fadhilah; Martha, Zamahsary; Mukhti, Tessy Octavia
Pelita Eksakta Vol 8 No 2 (2025): Pelita Eksakta, Vol. 8, No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol8-iss2/293

Abstract

Desa Talawi Mudiak menghadapi tantangan dalam pengelolaan data kependudukan. Meskipun mereka telah menyusun RPJMD 2022-2027 yang mengacu pada SDG's, pendataan yang dilakukan masih terbatas pada aspek kependudukan dan demografi. Padahal, pemutkhiran data harus mencakup 17 pilar SDg's agar dapat digunakan sebagai dasar dalam perencanaan pembangunan desa. Selain itu, keterbatasan akses internet dan kurangnya pemanfaatan teknologi informasi juga menjadi kendala pengembangan sistem informasi desa yang lebih komprehensif. Program Studi S1 Statistika hadir dalam menjembatani pencapaian beberapa pilar itu melalui pemutakhiran data hingga dilitalisasinya. Kegiatan diawali dengan pengumpulan data awal, perhitungan kerangka sampling, pelaksanaan survei, dan pemrosesan data pasca survei hingga diperoleh suatu kesimpulan yang dapat digunakan untuk pembangunan desa. Kegiatan melibatkan banyak pihak, mulai dari dosen program studi, perangkat desa, mahasiswa, dan masyarakat. Hasil yang diperoleh berupa data yang mutakhir dan sebuah buku berisikan kondisi Desa Talawi Mudiak tahun 2025.
SISTEM KONTROL PEMANTAU KEBERSIHAN PENDINGIN UDARA BERBASIS MIKROKONTROLLER NODEMCU ESP-32 Pratama, Muhammad Nuryan; Atika, Ratna; Fitria, Dina
JURNAL TELISKA Vol 18 No III (2025): TELISKA November 2025
Publisher : Teknik Elektro Polsri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.17768986

Abstract

Room temperature and humidity in tropical climates, such as in Indonesia, are generally controlled using air conditioning (AC), which has now become a basic necessity. This study aims to improve the durability and energy efficiency of air conditioning systems through the application of microcontroller-based devices. Monitoring is carried out by measuring the AC electrical current, where the normal value is in the range of 3.2–3.6 amperes, while when the current exceeds 4 amperes, the system automatically cuts off the electricity supply. In addition, a water level control sensor with a maximum limit of ±4 cm is installed on the inner water tank. If the water level reaches ±3 cm and touches the sensor, the system will automatically stop the AC operation. To support remote monitoring, the system is equipped with an Arduino NodeMCU ESP-32 module integrated with the Blynk application, so that users receive notifications when a disturbance occurs. Real-time monitoring information is also displayed on the LCD screen on the control panel. The results of the study show that this design is able to provide protection against damage caused by excessive current and water levels, while also increasing the operational efficiency of the AC.
Forecasting Foreign Tourists to West Sumatera Before and After COVID-19 Using ARIMA and Prophet and Its Impact on Foreign Exchange Alandra, Cindy Resha; Permana, Dony; Vionanda, Dodi; Fitria, Dina
Indonesian Journal of Statistics and Applications Vol 9 No 2 (2025)
Publisher : Statistics and Data Science Program Study, SSMI, IPB University, in collaboration with the Forum Pendidikan Tinggi Statistika Indonesia (FORSTAT) and the Ikatan Statistisi Indonesia (ISI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/ijsa.v9i2p157-168

Abstract

Foreign exchange earnings are very important for the improvement of the economy in Indonesia, where these foreign exchange earnings can be obtained through the tourism sector. One of the provinces in Indonesia that is a major tourist destination is West Sumatra. The number of foreign tourists coming to West Sumatra is influenced by various factors, one of which is the COVID-19 pandemic that resulted in a decrease in visitor numbers. The research was conducted to forecast the number of foreign tourists to West Sumatra using the ARIMA and Prophet methods, as well as to calculate the loss and foreign exchange earnings and the forecasting accuracy of both methods. The data for this study was taken from the BPS West Sumatra website regarding the number of foreign tourists to West Sumatra from 2015 to 2024. In this data, forecasting for the year 2020 will be done using the ARIMA method and forecasting for the year 2025 using the Prophet method. The data in this study tends to be stable before the pandemic, making the ARIMA method suitable. Meanwhile, after the pandemic, the data fluctuated, making the Prophet method suitable. From the results obtained, the best ARIMA model is ARIMA (1, 0, 1). The forecasting accuracy is 1.82% with an estimated foreign exchange loss of $52,095,688 for the year 2020. Meanwhile, using the Prophet method, the forecasting accuracy obtained is 12.13% with an estimated foreign exchange revenue of $208,546,812 for the year 2025.
Whatsapp and Wordplay: Gamified English Learning in Nonformal Classroom Fitria, Dina; Sujito
Teaching English and Language Learning English Journal Vol. 6 No. 1 (2026): February
Publisher : Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36085/telle.v6i1.10129

Abstract

English vocabulary mastery presents a significant challenge for nonformal education students characterized by heterogeneous backgrounds and limited face-to-face instructional time. This study explores the effectiveness of gamified vocabulary challenges through WhatsApp in improving vocabulary mastery among Grade XI students at PKBM Arrohmah Demak Package C program. Employing a pre-experimental design with one-group pretest-posttest, the research involved 40 students participating in a two-week gamification program with structured daily and weekly tasks. Data were collected through standardized vocabulary tests and participation tracking via WhatsApp platform. Analysis using paired sample t-test and Pearson correlation revealed significant improvement in mean scores from 56.2 to 74.8 with participation rates reaching 87.5%. The multidimensional assessment system measured timeliness, completeness, accuracy, and creativity with an overall achievement of 77.4%. A strong positive correlation was identified between participation levels and learning achievement. Findings confirm that integrating gamification and mobile learning through WhatsApp effectively enhances vocabulary mastery in nonformal education contexts. This platform offers high accessibility and flexibility suitable for adult learner characteristics. Despite its effectiveness, challenges such as limited internet access and low student creativity require attention in future digital learning implementations.
Co-Authors Abdillah, Muhammad Mukhlis Abdul Aziz, Ahmad Malik Abdur Rahim, Abdur Al Aziz, Saddam Alamin, M. Alandra, Cindy Resha Anggari Linda Destiana Antasya, Faridah Atika, Ratna Darussalam, Muhammad Illyas Day, Dafzel Dewi Rawani Dinul Haq, Asra Dodi Vionanda Dony Permana Dwi Sulistiowati, Dwi Fathonah, Deffya Fikra, Hidayatul Fitri, Fadhilah Ghaly, Fayyadh Hendrawan, Muhammad Indri Astuti Joni Joni Joumil Aidil Saifuddin Khalida, Rizqiana Maulana, Muhammad Arif Moh. Wahyu Aminullah Moulita, R.A. Nurul Muhni Pamuji, Muhni Mujaidiah Mukhti, Tessy Octavia Nahdah, Athaya Nisrina Nonong Amalita Nugroho, Agung Pajrini, Nurul Hasni Permana, Dony Pratama, Muhammad Nuryan Putri, Sindy Amelia Revelino, Imanuel Ridho, Fakhru Rini Afrianti Robiati, Silfi Salma, Admi Suhady, Suhady Suherman, Suherman Suparmin Suparmin Syafriandi Syafriandi Tessy Octavia Mukhti Turrohmah, Azizah Yarman Yarman, Yarman Yenni Kurniawati Yudi Irwansi, Yudi Yuwon, Yuwon zafira, Rufaidah Zamahsary Martha Zilrahmi, Zilrahmi