One of the most critical aspects of open pit mining is the dewatering and mine drainage systems. The NCP Open Pit Gold Mine is located in Central Kalimantan. This study area has a range of rainfall intensities and durations from moderate to heavy. Good dewatering is required to manage runoff water and reduce runoff from entering the pit and mine front loading. The study used daily rainfall intensity data from 1994 to 2018. Using the Mononobe Method, the hydrological data for this area were evaluated by determining the value of the rainfall intensity plan. According to the evaluation of rainfall data from 1994 to 2018, the research area saw a rainfall intensity of 86.23 mm/day over a two-year return period. The majority of water extracted from mines is from precipitation and runoff rather than groundwater. An open channel was made around the open pit, flowing water naturally into the sump to reduce water entering the mining area. The water was pumped into the settling pond with 520 m3/hour and 780 m3/hour capacity pumps.

Penelitian ini bertujuan untuk mendeskripsikan perilaku taksadar dan sadar tokoh utama dalam novel Layla Majnun dengan pendekatan fenomenologi Hugenholtz. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kualitatif. Berdasarkan hasil analisis dan pembahasan diperoleh simpulan sebagai berikut: (1) bentuk perilaku tidak sadar tokoh utama dalam novel Layla Majnun meliputi perasaan kesendirian, ketiadaan minat dan perasaan bersalah; (2) bentuk perilaku sadar tokoh utama dalam novel Layla Majnun dilakukan dengan melibatkan indera, yakni melihat, mendengar, dan beradaptasi. Abstract: This research aims to describe conscious and unconscious behavior of main characters in the novel Layla Majnun. The study was based on Hugenhotz phenomenological approach. The method used in this research was descriptive qualitative. Based on the analysis and discussion, it can be concluded as follows: (1) forms of unconscious behavior of the main characters include the feelings of loneliness, disinterest, and guilt; (2) forms of conscious behavior of the main characters involve the senses of seeing, hearing, and adapting. Key Words: phenomenology; unconscious behavior; conscious behavior

The Covid-19 pandemic caused the learning process to carried out online, and to improve students' analytical skills, it was necessary to have supporting media in the online learning process. So that this study aims to determine the feasibility of physics learning media using Sparkol Videoscribe assisted by PhET simulation to improve students' analytical skills in terms of the validity, practicality, and effectiveness of the media developed. This study uses the ADDIE research model, namely analysis, design, development, implementation, and evaluation. The subject of this research is the students of class X MIPA MA Syamsul Huda Kedungreja. Data collection techniques used are validation sheets, student response questionnaires, observation sheets, and learning outcomes tests. The results of this study indicate that: (1) the validation results obtained from the validator expert get a value of 3.84 by material experts and 3.85 by media experts include a very good category, so it can be said to be valid, (2) physics learning media using Sparkol Vvideoscribe is practical because it can be carried out in limited trials and broad trials well, and gets a positive response from students, (3) the results of the analytical ability test increase learning outcomes with an N-gain of 0.71 including the category high, so it is declared effective. Thus the physics learning media using sparkol videoscribe assisted by PhET simulation in this study is declared valid, practical, and effective so that it is feasible to use it to improve students' analytical skills