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All Journal POSITRON Ensiklopedia of Journal Science and Environmental Journals for Postgraduate Journal of Comprehensive Science Journal of Climate Change Society
Audia, Washilla
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Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Physics Social Sciences

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Systematic Literature Review Method for Identifying Efficiency and Photovoltaic Technology as a Renewable Energy Innovation Audia, Washilla; Yendri Sudiar, Nofi; Hamdi; Yulkifli; Nofriandi, Alwi
Journal of Climate Change Society Vol. 2 No. 1 (2024)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jccs/Vol2-iss1/24

Abstract

Photovoltaics or solar cells are a device that can convert/convert solar energy into electrical energy. The use of photovoltaics as a renewable energy innovation is very necessary in developing photovoltaic technology and increasing the efficiency of the energy produced. The main electricity supply is PLN, which is not always continuous in its distribution due to the limited availability of fossil energy. This can result in disruption of human activities and productivity. The technology developed is organic and inorganic photovoltaic technology. Photovoltaic efficiency refers to the ability of solar panels to convert sunlight energy into electrical energy. Currently it is not known how much technology has been developed by photovoltaics and the efficiency that photovoltaics have produced. This research aims to identify developments in photovoltaic efficiency research and technology used in the world whose data was obtained from related journals in 2013-2022. There are 1,503 studies related to photovotaic efficiency. The method used in this research is the Systematic Literature Review (SLR) Method. The SLR method is used to identify, review, evaluate, and interpret all available research on a topic area of ​​interest, with specific relevant research questions. By using the SLR method, a systematic review and identification of journals can be carried out, with each process following predetermined steps or protocols. The research results show that the technology that is widely used in developing photovoltaic efficiency is organic photovoltaic technology and the highest efficiency that has been obtained is 38.9%.
Simulator Gempa Menggunakan Konsep Vibrating Table Berbasis Sensor MPU6050 Audia, Washilla; Yulkifli, Yulkifli; Nofriandi, Alwi; Yohandri, Yohandri; Ahadi, Suaidi
POSITRON Vol 14, No 2 (2024): Vol. 14 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v14i2.76159

Abstract

Indonesia merupakan salah satu negara dengan wilayah berpotensi gempa tertinggi di dunia, yang sering kali menimbulkan kerugian besar. Simulator gempa berbiaya rendah menjadi topik penting dalam berbagai penelitian untuk mendukung mitigasi bencana. Oleh karenanya, pengembangan dan pengujian vibrating table semakin banyak dilakukan di pusat penelitian teknik gempa di seluruh dunia. Penelitian ini bertujuan untuk mengembangkan simulator gempa berbasis konsep vibrating table yang hemat biaya, mudah digunakan, dan akurat, dengan memanfaatkan sensor MPU6050 untuk karakterisasi getaran. Sistem ini menggunakan motor DC sebagai sumber getaran, sementara sensor MPU6050 mendeteksi getaran yang terjadi saat simulator diujikan dan mengukur percepatan getaran yang dihasilkan. Purwarupa yang dikembangkan ini kemudian dikalibrasi menggunakan vibration meter sebagai alat ukur standar. Pada penelitian ini ditemukan bahwa variasi kecepatan putar motor (rpm) memengaruhi hasil respons dari percepatan getaran (m/s2) pada prototipe simulator gempa dan memiliki hubungan berbanding lurus.  Simulator ini memiliki tingkat ketepatan 96,1% dan ketelitian 99,6% setelah kalibrasi. Dengan demikian, purwarupa ini mampu menyimulasikan gempa dengan respons getaran yang akurat dan  menjadikannya solusi yang memiliki potensi dalam pengembangan teknologi mitigasi bencana yang terjangkau dan efektif.
Diferensiasi Jahe Emprit Menggunakan Genose 118c Berbasis Principal Component Analysis Pratama, Rayvol Dion; Yulkifli, Yulkifli; Darvina, Yenni; Nofriandi, Alwi; Audia, Washilla
Journal of Comprehensive Science Vol. 4 No. 5 (2025): Journal of Comprehensive Science (JCS)
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jcs.v4i5.3160

Abstract

Indonesia merupakan salah satu produsen jahe terbesar di dunia, namun kualitas dan keaslian jahe yang beredar di pasaran, khususnya dalam bentuk bubuk, rentan terhadap pemalsuan. Oleh karena itu, diperlukan metode autentikasi yang cepat, akurat, dan efisien. Penelitian ini bertujuan untuk membedakan jahe emprit berdasarkan variasi massa, suhu pemanasan, dan waktu pemanasan menggunakan teknologi electronic nose (GeNose 118C) yang dikombinasikan dengan metode Principal Component Analysis (PCA). Sampel diuji berdasarkan parameter massa (3g, 6g, 9g), suhu (40°C–90°C), dan waktu pemanasan (5–15 menit), kemudian diekstraksi nilai maksimum dari sinyal 8 sensor gas dan dianalisis menggunakan PCA dua dimensi (PC1 dan PC2). Hasil menunjukkan bahwa metode ini mampu membedakan sampel dengan baik: variasi massa (PC1 = 94,59%), variasi suhu (PC1 = 92,17%), dan variasi waktu pemanasan (PC1 = 96,01%). Temuan ini membuktikan efektivitas E-nose berbasis PCA dalam klasifikasi jahe emprit melalui deteksi senyawa volatil. Implikasi penelitian ini penting bagi pengembangan sistem autentikasi rempah-rempah berbasis aroma yang cepat, murah, dan aplikatif, terutama dalam industri pengolahan herbal dan kontrol mutu pangan.
Heavy Metal Distribution and Policy Impact from Illegal Mining in Sijunjung: A Systematic Review Amelia, Kiki; Frinaldi, Aldri; Rembrandt, Rembrandt; Aprilliani, Cici; Audia, Washilla; Batubara, Fanny Yuliana; Hatika, Rindi Genesa; Febrina, Cory; Iswahyudi, Abdi
Science and Environmental Journal for Postgraduate Vol. 7 No. 2 (2025): Science and Environmental Journals for Postgraduate (SENJOp)
Publisher : Postgraduate School, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/senjop.v7i2.298

Abstract

Illegal gold mining (PETI) in Sijunjung Regency has triggered a severe environmental crisis, characterized by widespread heavy metal pollution from mercury (Hg) and arsenic (As) that threatens ecosystems and public health. To comprehensively assess this issue and evaluate existing management policies, this study conducted a systematic review following the PRISMA 2020 guidelines, synthesizing evidence from 20 empirical studies. The results reveal that heavy metal concentrations in water, sediment, soil, and biota significantly exceed quality standards, with a clear spatial gradient emanating from PETI sites and a worrying increasing trend over time. Concurrently, the evaluation of management policies uncovered critical weaknesses, including institutional fragmentation, low law enforcement effectiveness (achieving only 45% of its target), and an over-reliance on ineffective repressive measures. In conclusion, the findings underscore the urgent need for a fundamental policy shift from a repressive to an integrative and sustainable model. This study proposes an evidence-based framework that combines stringent regulation, real-time monitoring, community-based economic empowerment, and public health interventions to holistically address the root causes and multifaceted impacts of PETI in Sijunjung.
Illegal Gold Mining: A Systematic Literature Review from an Environmental Policy Perspective Hatika, Rindi Genesa; Frinaldi, Aldri; Lanin, Dasman; Rembrandt, Rembrandt; Umar, Genius; Dewata, Indang; Audia, Washilla
Science and Environmental Journal for Postgraduate Vol. 7 No. 2 (2025): Science and Environmental Journals for Postgraduate (SENJOp)
Publisher : Postgraduate School, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/senjop.v7i2.302

Abstract

This systematic literature review analyzes the complexity of illegal gold mining (ASGM) from an environmental policy perspective through a review of 53 selected scientific publications (2000-2025). The results reveal that ASGM is the largest source of global mercury pollution, contributing 37% of anthropogenic emissions, which triggers environmental and health crises through bioaccumulation and biomagnification mechanisms in the food chain. Regulatory frameworks exist in Indonesia, such as the Minerba Law, the PPLH Law, the RAN PPM, and the ratification of the Minamata Convention. However, the main findings of this study identify a significant implementation gap between policy and practice in the field, caused by weak law enforcement, structural corruption, suboptimal inter-agency coordination, and the lack of viable technological and economic alternatives for communities. The root of the problem lies in a governance deficit, where a command-and-control approach fails to address the reality of ASGM as an economic lifeline for marginalized communities. Therefore, a sustainable solution requires a paradigm shift towards inclusive governance that integrates guided formalization, alternative economic empowerment, and a supply-chain approach to disrupt the distribution of illegal mercury. 
PENGARUH KEBERSIHAN,LINGKUNGAN KERJA TERHADAP KEJADIAN TB PADA PETUGAS KESEHATAN Febrina, Cory; Frinaldi, Aldri; Lanin, Dasman; Rembrandt, Rembrandt; Umar, Genius; Yulkifli, Yulkifli; Syah, Nurhasan; Kartika, Imelda Rahmayunia; Rezkik, Fitrianola; Mariyana, Rina; Yunia Sari, Mesi; Meladina, Meladina; Aprilliani, Cici; Amelia, Kiki; Yuliana Batubara, Fanny; Genesa Hatika, Rindi; Audia, Washilla; Iswahyudi Yasril, Abdi; Hendrita, Juli
Ensiklopedia of Journal Vol 8, No 2 (2026): Vol. 8 No. 2 Edisi 1 Januari 2026
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v8i2.3549

Abstract

Many cases of disease in healthcare workers are suspected to be related to environmental conditions, but the relationship between these two factors has not been clearly described. This study conducted a literature review regarding the influence of environmental conditions on occupational diseases in healthcare workers. Relevant articles were searched through electronic databases such as PubMed, ProQuest, Google Scholar, and Springer, with publications spanning the last 5 years. The search used the English-language keywords: "Hospital Environmental Hygiene, Occupational Health, and Tuberculosis". The inclusion criteria for articles were: (1) full access available, (2) English language, (3) type of research and observation, and (4) primary focus on hospital room temperature and occupational health of healthcare workers. The selection process and presentation of results followed the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) scheme. Results: Of the 1033 articles found, 8 research articles met the requirements and were in accordance with the research objectives for analysis. Conclusion: Work environment conditions play an important role in the emergence of tuberculosis (TB) in healthcare workers. Strengthening environmental controls and organizational support are crucial to protecting healthcare workers from occupational TB risks and ensuring a safer healthcare system.Keywords: Hospital Environmental Hygiene, Healthcare Worker Occupational Health, and Tuberculosis (TB).
Co-Authors Abdi Iswahyudi Yasril Aldri Frinaldi Alwi Nofriandi Aprilliani, Cici Batubara, Fanny Yuliana Dasman Lanin Febrina, Cory Genesa Hatika, Rindi Hamdi hendrita, juli Indang Dewata Iswahyudi, Abdi Kartika, Imelda Rahmayunia Kiki Amelia, Kiki Meladina Meladina Pratama, Rayvol Dion Rembrandt, Rembrandt Rezkik, Fitrianola Rina Mariyana Rindi Genesa Hatika Suaidi Ahadi Umar, Genius Yendri Sudiar, Nofi Yenni Darvina Yohandri Bow Yuliana Batubara, Fanny Yulkifli Yulkifli Yulkifli Yunia Sari, Mesi