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All Journal Jurnal Fisika Unand Psikoborneo : Jurnal Ilmiah Psikologi
Furqan, Ahmad
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Humanities Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics Social Sciences

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Pemodelan Anomali Magnetik Untuk Identifikasi Struktur Bawah Permukaan Bumi Di Nagari Cupak Kabupaten Solok Furqan, Ahmad; Pujiastuti, Dwi; Puryanti, Dwi; Putra, Ardian
Jurnal Fisika Unand Vol 13 No 4 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.4.476-482.2024

Abstract

This research was conducted to determine the distribution of magnetic anomalies in the geothermal area of Nagari Cupak, Solok Regency using geomagnetic methods. Data was collected using a magnetometer at 144 observation points with a distance of 300 m between points. The magnetic anomaly value is obtained from the correction of daily variation’s total magnetic data and correction to the magnetic field value of the 13th generation IGRF (International Geomagnetic Reference Field) reference model. Furthermore, reduction to the poles and continuation upwards with a height of 200 m are carried out to remove noise and separate local and regional magnetic anomalies. After data processing, the total magnetic anomaly value in the area ranges from 1252.8 nT to 2969.4 nT which is categorized as low. The low anomaly value is thought to be caused by the demagnetization of rocks due to the influence of geothermal sources in the subsurface. Furthermore, 2D modeling is carried out by analyzing the magnetic anomaly data and making a cross-sectional incision of the model on the contour of the magnetic field anomaly that has been processed above. Based on the modeling results, the subsurface geothermal system of Nagari Cupak, Solok Regency, consists of a cover rock layer, reservoir layer, and hot rock layer which is suspected to be the heat source of the geothermal system of the study area.
Pengaruh Terapi Relaksasi Progresif Terhadap Stres Pada Remaja Penghuni Lembaga Pemasyarakatan Furqan, Ahmad
Psikoborneo: Jurnal Ilmiah Psikologi Vol 4, No 2 (2016): Psikoborneo: Jurnal Ilmiah Psikologi
Publisher : Program Studi Psikologi, Fakultas Ilmu Sosial dan Ilmu Politik, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/psikoborneo.v4i2.3996

Abstract

Fenomena keterlibatan remaja dalam kasus hukum banyak dijumpai, bahkan mengakibatkan mereka dijebloskan dalam lembaga pemasyarakatan. Hidup dan tinggal di lembaga pemasyarakatan dapat menyebabkan kondisi tertekan secara fisiologis, psikologis, maupun perilaku, atau sering disebut stres. Penelitian eksperimen ini dilakukan untuk mengetahui efektivitas pengaruh teknik relaksasi progresif untuk mengatasi stres pada remaja penghuni lembaga pemasyarakatan, dengan subjek berjumlah 20 orang remaja. Pengukuran stres menggunakan skala DASS dengan mengambil sub-skala ketiga saja. Hasil penelitian menunjukkan perbedaan stres kelompok eksperimen sebelum dan setelah diberikan perlakuan dengan nilai P = 0,003. Perbandingan post-test kelompok eksperimen dan kontrol dengan menggunakan gain score menunjukkan nilai P = 0,009, yang menandakan bahwa terdapat perbedaan nilai stres antara kelompok eksperimen yang diberikan teknik relaksasi progresif dibanding kelompok kontrol yang diberikan teknik placebo.
Co-Authors Ardian Putra Dwi Pujiastuti Dwi Puryanti