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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal EnviScience (Environment Science) SIGn Journal of Social Science
Sari, Ike Kumala
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Materials Science & Nanotechnology Physics Public Health Social Sciences

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Analisis Berbagai Metode Pengolahan Sampah Sebagai Solusi Permasalahan Sampah di Kabupaten Lumajang Sari, Ike Kumala; _, Sudarti
Jurnal EnviScience (Environment Science) Vol. 6 No. 2 (2022)
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/jev.v6i2.361

Abstract

Pencemaran lingkungan yang semakin meningkat disebabkan oleh beberapa faktor. Salah satunya yaitu bertambahnya jumlah populasi manusia yang dapat mengakibatkan meningkatnya jumlah sampah. Sampah adalah bahan yang sudah dibuang atau terbuang dan merupakan hasil dari kegiatan manusia maupun alam yang sudah tidak digunakan lagi karena fungsi utamanya sudah diambil. Setiap tahunnya timbulan sampah di Kabupaten Lumajang terus meningkat. Disamping meningkatnya jumlah penduduk permasalahan sampah di Kabupaten Lumajang disebabkan oleh minimnya sarana prasarana pengelolaan sampah dan armada pengangkut sampah. Selain itu juga pola pikir serta partisipasi masyarakat mengenai sampah yang masih belum berkembang. Tujuan penelitian ini yaitu menganalisis metode pengolahan sampah untuk mengatasi permasalahan sampah yang ada di Kabupaten Lumajang. Metode penelitian yang digunakan yaitu penelitian deskriptif kualitatif dengan metode literatur review dengan artikel yang terbit tahun 2010-2022. Hasil penelitian menyatakan bahwa metode pengolahan sampah yang dapat dijadikan sebagai solusi permasalahan sampah yang ada di Kabupaten Lumajang adalah pengoptimalan bank sampah, pengoptimalan komposting, pembuatan briket, dan pengolahan sampah plastik sebagai bahan bakar minyak.
Analisis Persepsi Masyarakat tentang Dampak Penambangan Pasir di Sungai Mujur dan Sungai Regoyo Sari, Ike Kumala; Sudarti, Sudarti
SIGn Journal of Social Science Vol 2 No 2: Desember 2021 - Mei 2022
Publisher : CV. Social Politic Genius (SIGn)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (682.868 KB) | DOI: 10.37276/sjss.v2i2.120

Abstract

Sand mining is an activity of exploiting natural resources below the surface of the ground that can be carried out underground river flows to extract minerals, namely sand. Sand mining is generally carried out to increase development. This activity has a positive impact on the community. However, if you ignore the environmental impact analysis, it will harm the community, which can cause environmental damage. Therefore, this study aims to analyze public perceptions of the impact of sand mining on the Mujur River and the Regoyo River. The research method used is a survey and data obtained by conducting observations, documentation, and questionnaires. Respondents in this study amounted to 30 people who are the surrounding community. For one month, this research was conducted around the Mujur River and the Regoyo River, Pasirian District, Lumajang Regency, East Java. The data of this study were analyzed using descriptive analysis. This study indicates the high public perception of the impact of sand mining on the Mujur River and Regoyo River, seen from the percentage of the questionnaire calculation, which is divided based on the positive and negative impacts of sand mining on the Mujur River and Regoyo River.
Expected Value of Helium Ion Electron Momentum in Momentum Space with Primary Quantum Numbers n≤3 Supriadi, Bambang; Mardhiana, Hana; Kristiawan, Wendy Indra; Kamalia, Diana; Sari, Ike Kumala
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.3861

Abstract

The aim is the expected value of helium ions to determine its properties as a heat transmitter to reactors and chirogenic science. This research is non-experimental research using quantum mechanics literature study methods because there are many previous studies that are relevant to this research. Data on the expected value of electron momentum in helium ions is determined based on numerical calculations using the Matlab 2015a program to simplify calculations using ion expectation calculations in momentum. The results obtained are that the electron momentum value in the helium ion can provide an overview of the average momentum value of the helium ion electrons in momentum space. This research data also shows that in momentum space the expected value of electron momentum decreases as the principal quantum number (n) increases. This can be seen when n=1,l =0 then 3p0 = 1.3146, and when n=3,l =0 then 3p0 = 0.5098.
Co-Authors Bambang Supriadi Kamalia, Diana Kristiawan, Wendy Indra Mardhiana, Hana Sudarti Sudarti _, Sudarti