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All Journal JOIV : International Journal on Informatics Visualization Numeracy : Jurnal Ilmiah Pendidikan Matematika Dirasatul Ibtidaiyah
Prana Ugi
Department Of Mathematics, Universitas Sumatera Utara, Medan, 20155, Indonesia
Computer Science & IT Education Mathematics

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Thermostats: an Open Source Shiny App for Your Open Data Repository Dasapta Erwin Irawan; Muhammad Aswan Syahputra; Prana Ugi; Deny Juanda Puradimaja
JOIV : International Journal on Informatics Visualization Vol 3, No 2-2 (2019): Internet of Things and Smart Environments
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1146.77 KB) | DOI: 10.30630/joiv.3.2-2.282

Abstract

Hydrochemical analysis has emerged as a powerful methodology in geothermal system profiling. Indonesia is the capital of geothermal energy with its more than 100 active volcanoes. Therefore we need to have an analytical, data-driven, and user-focused online application of geothermal water quality. Proudly we introduce Thermostats (https://aswansyahputra.shinyapps.io/thermostats/). We collected water quality from 416 geothermal sites across Indonesia. Three main objectives are to provide an online open-free to use data repository, to visualize the dataset to suit user’s needs, and to help users understand the geothermal system of each particular site. At the end, we hope they like this system and donate their own dataset to make it better for future users. We designed this online app using Shiny, because it’s open source, lightweight and portable. It’s very intuitive to load our descriptive, bivariate and multivariate statistics. We selected Principal Component Analysis and Cluster Analysis as two strong statistics for water sample classification. Users could add their own dataset by making a pull request on Github (https://github.com/dasaptaerwin/thermostats) or sending it to us by email to make it visible in the application and included in the visualization. We make this application portable, so it can be installed on a local computer or a server, to enable an easy and fluid way of data sharing between collaborators.
APLIKASI UJI MANN-WHITNEY DALAM MENENTUKAN ADA TIDAKNYA PERBEDAAN INDEKS PRESTASI KUMULATIF ANTARA MAHASISWA DOMINAN OTAK KANAN DAN MAHASISWA DOMINAN OTAK KIRI DI FMIPA USU Prana Ugiana Gio
Jurnal Numeracy Vol 1 No 2 (2014)
Publisher : Program Studi Pendidikan Matematika, STKIP Bina Bangsa Getsempena

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (197.965 KB) | DOI: 10.46244/numeracy.v1i2.122

Abstract

Terdapat beberapa metode atau uji yang disediakan dalam statistika untuk menguji beda dari dua rata-rata berdasarkan dua populasi yang independen. Salah satu uji untuk menguji ada tidaknya perbedaan rata-rata dari dua populasi yang berbeda adalah uji Mann-Whitney. Pada tulisan ini diterapkan uji Mann-Whitney untuk menentukan ada tidaknya perbedaan indeks prestasi kumulatif antara mahasiswa dominan otak kanan dan mahasiswa dominan otak kiri di FMIPA USU. Berdasarkan penelitian yang telah dilakukan, maka diperoleh hasil bahwa terdapat perbedaan yang signifikan secara statistik antara jumlah mahasiswa dominan otak kanan dan jumlah mahasiswa dominan otak kiri di FMIPA USU pada tingkat signifikansi 5%. Namun tidak terdapat perbedaan yang cukup signifikan secara statistik mengenai indeks prestasi kumulatif antara mahasiswa dominan otak kanan dan mahasiswa dominan otak kiri di FMIPA USU pada tingkat signifikansi 5%.
RESPON MAHASISWA PGMI TERHADAP PLATFORM WAKELET UNTUK PEMBELAJARAN ONLINE DI MASA PANDEMI COVID-19 Nashran Azizan; Maulana Arafat Lubis; Prana Ugiana Gio; Marhamah Marhamah
DIRASATUL IBTIDAIYAH Vol 1, No 1 (2021): DIRASATUL IBTIDAIYAH
Publisher : Pendidikan Guru Madrasah Ibtidaiyah Institut Agama Islam Negeri Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1018.04 KB) | DOI: 10.24952/ibtidaiyah.v1i1.3567

Abstract

The COVID-19 pandemic has caused many changes in various aspects of life, including in the education sector and the learning system. The application of learning and teaching from home policies for students and lecturers alike changes the face-to-face learning perspective online by utilizing various applications and platforms. This study aims to determine the effectiveness of Wakelet for higher education and the benefits of Wakelet in online learning. This research method is descriptive quantitative through a survey. The population of this study was students of the PGMI IAIN Padangsidimpuan study program semester 6. The sampling technique used in this study was probability sampling which included simple random sampling. The sample was determined based on the Slovin formula assisted by Microsoft Excel software, so the sample was 94 respondents. The data collection technique used a questionnaire by Google Form. Analysis of research data using descriptive statistics assisted by STATCAL and EAVIS software. The results showed that the Wakelet platform was categorized as effective and efficient for use in the university environment, especially in the PGMI IAIN Padangsidimpuan Study Program based on student responses at a percentage of 78.72%. The Wakelet platform is also easily accessible and innovative, varied, and creative based on student responses, which are 80.85%. Besides having an attractive appearance, the Wakelet platform also has benefits, including bringing together all types of student work collected, such as videos, article texts, images, PDF files of papers/e-books / e-journals / e-proceedings, sharing web links, media links,social media and others.
Co-Authors Dasapta Erwin Irawan Deny Juanda Puradimaja Marhamah Marhamah Maulana Arafat Lubis Muhammad Aswan Syahputra Nashran Azizan