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All Journal Jurnal Fisika Unand Jurnal Hilirisasi IPTEKS (JHI) BERNAS: Jurnal Pengabdian Kepada Masyarakat Edulab : Majalah Ilmiah Laboratorium Pendidikan Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks MACHINERY: Jurnal Teknologi Terapan Jurnal Manajemen Bisnis Kewirausahaan SATIN - Sains dan Teknologi Informasi AL TADIB : Jurnal Ilmu Pendidikan Jurnal Bahasa Rupa Jurnal Manajemen Pariwisata dan Perhotelan
Arif Budiman
Departemen Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Andalas
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Pengaruh Disiplin Kerja dan Fasilitas Kerja terhadap Produktivitas Kerja Karyawan Ibis Hotel Padang Arif Budiman; Nidia Wulansari
Jurnal Manajemen Pariwisata dan Perhotelan Vol. 3 No. 1 (2025): Jurnal Manajemen Pariwisata dan Perhotelan
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jmpp-widyakarya.v3i1.4720

Abstract

The research aims to analyze how far work discipline and work facilities influence the level of effectiveness of employee performance at Ibis Hotel Padang. The method applied in this research is a descriptive method with a quantitative approach. Data in the form of numbers was obtained through distributing questionnaires, and processed using SPSS version 26. The research results showed that work discipline and work facilities had an impact on employee effectiveness. Hypothesis testing using analysis with multiple linear regression results shows that the F value of 39.272 is greater than the F value of 3.15, with a significance level of 0.00 which is smaller than 0.05. This shows that the variables work discipline (X1) and work facilities (X2) have an effect on work productivity (Y), and the alternative hypothesis (H1) is accepted. Furthermore, the regression coefficient for variable X1 was obtained at 0.088 with a significance level of 0.019 (smaller than 0.05). Meanwhile, variable X2 has a regression coefficient of 0.654 with a significance level of 0.00 (smaller than 0.05). This indicates that an increase of one in work discipline may increase the effectiveness of employee performance by 0.088, while every increase of one in work facilities will increase the effectiveness of employee performance by 0.654. Multiple linear regression analysis shows that the influence of work discipline (X1) and work facilities (X2) on employee performance effectiveness (Y) is 55.7%.
Pendugaan Zona Alterasi Hidrotermal Menggunakan Data Geomagnetik EMM 2017 Di Wilayah Lubuk Sikaping Fauzan Surya Nanda; Arif Budiman
Jurnal Fisika Unand Vol 14 No 6 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.6.623-629.2025

Abstract

This study aims to identify hydrothermal alteration zones in Lubuk Sikaping District, Pasaman Regency, West Sumatra, using Enhanced Magnetic Model (EMM) 2017 geomagnetic data developed by the National Oceanic and Atmospheric Administration (NOAA). The data processing stages include International Geomagnetic Referee Field (IGRF) correction, evaluation of regional and residual anomalies using Radial Average Power Spectrum (RAPS), reduction to the poles, analysis of magnetic anomaly values ​​with the geological conditions of the study area. The results show that residual magnetic anomalies are in the range of -7.09582 nT to 7.65333 nT. The results of the analysis of magnetic anomaly values ​​and geological conditions indicate that the high anomaly zone (3.12460 nT - 7.65333 nT) spread in the south and southwest is a mineralization zone. The moderate anomaly zone (0.07503 nT - 3.12460) spread in the central to northeast is a lithology preservation zone between magnetic igneous rocks and non-magnetic sedimentary rocks. The low anomaly zone (–7.09582 nT - 0.07503 nT) located in the north and northeast is a hydrothermal alteration zone. The presence of mineralization zones, lithology boundary zones and hydrothermal alteration zones indicates that there is a fluid migration path in this area. The hydrothermal alteration zone in Lubuk Sikaping District is associated with the Sarik-Gajah Formation which consists of volcanic rocks that have undergone alteration due to the presence of active structures of the Sumatran Fault System.
Identifikasi Potensi Mineral Nikel Laterit Menggunakan Data Geomagnetik EMM (Enchanted Magnetic Model) 2017 di Kecamatan Poli Polia Keisyah Putri Islami; Arif Budiman
Jurnal Fisika Unand Vol 15 No 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.15.1.87-93.2026

Abstract

A study has been conducted utilizing secondary geomagnetic data from the Enhanced Magnetic Model (EMM) 2017. This study aims to identify the potential presence and lateral distribution of laterite nickel minerals in Poli Polia District. The data processing stages include International Geomagnetic Reference Field (IGRF) correction, Reduce to Pole (RTP) transformation, and separation of regional and residual anomalies. Furthermore, analysis and interpretation are carried out by comparing the residual anomaly map to the regional geological map. The results of the RTP transformation obtained residual magnetic anomaly values ​​ranging from -0.8 nT to 0.7 nT with high anomaly values ​​ranging from 0.5 nT to 0.7 nT and low values ​​ranging from -0.8 nT to -0.6 nT. In the southwest of the study area there is a low magnetic anomaly zone surrounded by a low magnetic anomaly zone, while in the north it is the opposite. The results of data interpretation indicate that the high anomaly zone in the southwest is related to the presence of the Ultramafic Complex (Ku) composed of peridotite and serpentine rocks, while the low anomaly zone is interpreted as a prospective area containing laterite nickel minerals. Meanwhile, in the northern part, the low anomaly zone correlates with the Mekongga Complex (Pzm), which is composed of metamorphic and sedimentary rocks. The presence of a high anomaly zone in this area indicates the presence of geological features such as faults or joints that play a significant role in enhancing the local magnetic response.
Identifikasi Potensi Mineralisasi Emas di Kecamatan Sangir menggunakan Data Geomagnetik EMM 2017 Intan Fitri; Arif Budiman
Jurnal Fisika Unand Vol 15 No 1 (2026)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.15.1.79-86.2026

Abstract

Indonesia is a country with significant potential for gold mineral resources, particularly in areas along the Sumatran magmatic belt. This study aims to identify the potential distribution of gold mineralization in Sangir District, South Solok Regency, using secondary geomagnetic data. The data used is the Enhanced Magnetic Model (EMM) 2017 model obtained from the National Oceanic and Atmospheric Administration (NOAA). Data processing was carried out through the stages of IGRF correction, calculation of total magnetic anomalies, separation of regional and residual anomalies and reduction-to-pole transformation (RTP) using Oasis Montaj software. The results show that the residual anomaly after reduction to the pole ranges from -1.0935 to 1.1861 nT. Based on local geological conditions, zones with low magnetic anomalies that develop in the central to western parts of the study area are interpreted as alteration and fracture zones that have the potential to become hydrothermal fluid movement pathways. The zone with moderate to high magnetic anomalies that developed in the eastern, east-central, and southeastern parts of the research area is interpreted as a response from high magnetic rocks associated with sulfide minerals (pyrite) and porphyry systems, so that the zone is identified as a prospective zone that has the potential to contain gold mineralization.
SOSIALISASI DAN PEMETAAN POTENSI TANAH LONGSOR MENGGUNAKAN METODE MIKROSEISMIK DAN GEOLISTRIK DI KAWASAN OBJEK WISATA BUKIT NOBITA Marzuki Marzuki; Mutya Vonnisa; Ahmad Fauzi Pohan; Arif Budiman; Imam Taufiq; Trengginas Eka Putra Sutantyo; Elistia Liza Namigo; Dian Milvita; Alimin Mahyudin; Nini Firmawati; Muldarisnur Muldarisnur; Afdal Afdal; Dahyunir Dahlan; M. Ali Shafii; Afdhal Muttaqin; Rico Adrial; Dedi Mardiansyah; Harmadi Harmadi; Zulfi Zulfi; Geby Sri Ayu Oktavia; Fani Anjelina; Nurul Annisa
Jurnal Hilirisasi IPTEKS Vol. 6 No. 2 (2023)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v6i2.655

Abstract

Nobita Hill is one of the areas being developed as a tourist attraction in the city of Padang. Above Nobita Hill is a beautiful view, and you can see the picture of Padang City. However, the hilly topography with steep slopes makes this area prone to landslides. This activity aims to map the potential for landslides on Novita Hill. Activities start from preparation, implementation in the field, and evaluation. Field activities are carried out in two stages. The first stage is an experiment to map the landslide potential. The second stage is socialization. The target audience for this activity is the Village Head of Jua Nan XX Village and its officials and the community around Nobita Hill. The results of the study and mapping were disseminated to the village administration and community leaders involved in the development of the Bukit Nobita tourism area, which was carried out on November 16, 2022. The result of tourist objects often changes land use and cover. However, mitigation of the potential for landslides in this area has never been done. Therefore, the Andalas University Physics Department team mapped the potential for landslides on Novita Hill for six months, using microseismic and geoelectric methods. This activity obtained a map of the distribution of dominant frequencies, a map of the distribution of amplification, and an identification of slip planes concerning the potential for landslides on Nobita Hill. Furthermore, the results of the mapping and mitigation efforts have been disseminated to the village administration and community leaders involved in the development of the Bukit Nobita tourism area. This activity was carried out well. The landslide potential distribution map obtained from this activity is input for the community and stakeholders in developing the Buki Nobita tourist attraction that is safe from disasters.
Design of TOEC/IKLA Online Examination Service Application: Case Study of the Centre of Language Development UIN Sunan Kalijaga: Perancangan Aplikasi Pelayanan Ujian Online TOEC/IKLA: Studi Kasus Pusat Pengembangan Bahasa UIN Sunan Kalijaga Nurain; Arif Budiman; Fuad Arif Fudiyartanto; Ervan Yogi Arifianto; Roger Bayuki Sofyan
Edulab : Majalah Ilmiah Laboratorium Pendidikan Vol. 9 No. 1 (2024)
Publisher : Laboratorium Pendidikan Fakultas Ilmu Tarbiyah dan Keguruan Colaboration with Persatuan Pranata Laboratorium Pendidikan Indonesia Tingkat Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/edulab.2024.91.09

Abstract

The Language Center offers standardized tests for Arabic and English in the form of IKLA and TOEC exams. When conducted on paper, they are corrected manually and can have problems such as being less efficient, effective, and accurate. This research aims to design an online test application for TOEC/IKLA that can overcome these problems. This research uses a specific method called a waterfall. The research stages include needs analysis, design, implementation, and testing. A need analysis is carried out to understand the necessity of the application from the user’s perspective. Design is carried out to produce an application design that meets user needs. Implementation is carried out to build applications according to the design that has been created. Testing is carried out to ensure that the application can function properly and meet user needs. The research results show that the designed TOEC/IKLA online test application can overcome the problems found in the manual TOEC/IKLA test. This application can provide more efficient, effective, and accurate exam services. This application is a new and better service that UIN Sunan Kalijaga Yogyakarta delivers for everyone, whether internal or external test takers. This application can even be utilized by other institutions that require online examination services. Abstrak Tes standar untuk bahasa Arab dan Inggris ditawarkan oleh Pusat Pengembangan Bahasa (P2B) dalam bentuk ujian IKLA dan TOEC. Ketika dilakukan di atas kertas, tes tersebut dikoreksi secara manual dan memiliki beberapa masalah seperti kurang efisien, efektif, dan akurat. Tujuan penelitian ini fokus pada merancang sebuah aplikasi tes online TOEC/IKLA. Penelitian ini menggunakan metode khusus yang disebut waterfall. Model pengembangan waterfall terdiri dari tahap analisis kebutuhan, desain, implementasi, pengujian, dan pemeliharaan. Analisis kebutuhan dilakukan untuk memahami kebutuhan aplikasi dari sudut pandang pengguna. Desain dilakukan untuk menghasilkan rancangan aplikasi yang sesuai dengan kebutuhan pengguna. Implementasi dilakukan untuk membangun aplikasi sesuai dengan desain yang telah dibuat. Pengujian dilakukan untuk memastikan aplikasi dapat berfungsi dengan baik dan memenuhi kebutuhan pengguna. Hasil penelitian menunjukkan bahwa system aplikasi ujian online TOEC/IKLA ini merupakan layanan baru yang disediakan P2B UIN Sunan Kalijaga Yogyakarta untuk semua orang, baik peserta ujian internal maupun eksternal. Desain system aplikasi ujian TOEC/IKLA online dikembangkan sesuai dengan tahap pengembangan. Namun, belum dilakukan pengujian untuk melihat efisiensi, efektifitas dan akurasi karena keterbatasan penulis. Oleh karena itu rekomendasi penelitian lebih lanjut tentang system aplikasi ini untuk melihat efektivatas, efisiensi, dan akurasi secara lebih valid. Rancangan ini juga dapat dimanfaatkan oleh institusi lain yang membutuhkan layanan ujian secara online.
Co-Authors A. Fadhil Desafa Adrial, Rico Afdal, Afdal Afdhal Muttaqin Afdhal Muttaqin Ahmad Fauzi Pohan Alimin Mahyudin Angga Elpatsa Ary ramadhan Astuti Atun Misnatun Chairil Akbar, Putra Dahyunir Dahlan Dedi Mardiansyah Dian Fitriyani Dian Fitriyani Dian Milvita Dwi Pujiastuti Dwi Pujiastuti Dwi Puryanti Elistia Liza Namigo, Elistia Elvaswer Elvaswer Elvaswer Ervan Yogi Arifianto Fani Anjelina Fauzan Surya Nanda Feriska Handayani Feriska Handayani Irka, Feriska Handayani Fiqi Diyona Fuad Arif Fudiyartanto Geby Sri Ayu Oktavia Haldis Alvaro Harmadi Harmadi Hendra Hendra Imam Taufiq Imam Taufiq Imam Taufiq Intan Fitri Iqbal Ramadhan Junaidin, Junaidin Karmin Karmin, Karmin Keisyah Putri Islami Luthfi, Haris M. Ali Shafii M. Ali Shafii Marzuki Marzuki Meqorry Yusfi Muhammad Arif Muhammad Hajid An Nur Muhammad Kahfi Muldarisnur, Mulda Mulia, Bagas Meiza Mutya Vonnisa Naela Amalia Zulfa Nidia Wulansari Nini Firmawati Nurain Nurul Annisa Nurul Hasanah Nurwijayanti Olly Norita Tetra Putri, Fenoria Putri, Niken Rahayu Rahmat Rasyid Ramacos Fardela Rayhan Oktaviandra Ridlwan, Burhanuddin Roger Bayuki Sofyan Sri Handani Sri Oktamuliani Sundari, Ella Susi Susyanti Syerlie Annisa Trengginas Eka Putra Trengginas Eka Putra Sutantyo Usna, Sri Rahayu Alfitri Zozy Aneloi Noli Zulfi Zulfi Zulfi