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Jurnal Hasi Penelitian Dan Pengkajian Ilmiah Eksakta - JPPIE
Published by Universitas Dharma Andalas
ISSN : -     EISSN : 28099532     DOI : https://doi.org/10.47233/jppie
Core Subject : Health, Science, Education, Agriculture, Art, Engineering,
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Library & Information Science Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Veterinary
Jurnal Penelitian & Pengkajian Ilmiah Eksakta (JPPIE) merupakan media jurnal elektronik yang diterbitkan oleh Universitas Dharma Andalas sebagai sarana untuk penyebaran dan publikasi hasil penelitian dan pengkajian pemikiran kritis mahasiswa yang orisinil dan up to date. JPPIM memuat artikel bidang Ilmu Eksakta, yang diterbitkan 2 (dua) kali dalam setahun yaitu bulan Januari dan juli. Redaksi menerima artikel hasil penelitian skripsi, tesis dan tugas-tugas perkuliahan mahasiswa.
Arjuna Subject : Umum - Umum
Articles 125 Documents
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Mempelajari Aktivitas Antioksidan Sinamaldehid dan Karvakrol dengan Substitusi Gugus NO2 dan CH3 Berdasarkan Metode Density Functional Theory (DFT) Azuxetullatif .; Fatridha Yansen
Jurnal Penelitian Dan Pengkajian Ilmiah Eksakta Vol 5 No 1 (2026): Jurnal Hasi Penelitian Dan Pengkajian Ilmiah Eksakta - JPPIE
Publisher : LPPM Universitas Dharma Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jppie.v5i1.2451

Abstract

Free radical are then main cause of tissue damage in the human body. Excess free radicals will result in various diseases such as cancer, diabetes, and heart disease. To minimize the excess of free radicals in the human body, antioxidant compounds are needed. One of the natural antioxidant compounds is terpenoid. Terpenoid derivatives that are known to have high antioxidant properties are Cinnamaldehyde and carvacrol. This study aims to predict the antioxidant activity of cinnamaldehyde and carvacrol compounds substituted with NO2 and CH3 groups theoretically, using the Density Functional Theory (DFT). The results of the study showed that cinnamaldehyde and carvacrol compounds substituted with the NO2 group had better antioxidant activity than those substituted with the CH3 group by considering the results of small BDE values, small SET-PT, small PA, small ETE, and small ?Egap
Sistem Pendukung Keputusan dengan Metode Simple Additive Weighting (SAW) Untuk Evaluasi Karyawan di PT. SJAL Silaut Febriyanno Suryana; Kusdianto .
Jurnal Penelitian Dan Pengkajian Ilmiah Eksakta Vol 5 No 1 (2026): Jurnal Hasi Penelitian Dan Pengkajian Ilmiah Eksakta - JPPIE
Publisher : LPPM Universitas Dharma Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jppie.v5i1.2454

Abstract

The use of information technology to support work activities has become an essential requirement to achieve effective and efficient performance. Human limitations in processing highly complex data are a key reason why technology has become a primary alternative solution. This study aims to develop a web-based Decision Support System (DSS) to assist in the evaluation of the best employees at PT SJAL. Previously, the evaluation process was conducted manually, which often led to issues such as subjectivity in assessment, time inefficiency, and suboptimal data management. The proposed system is designed to provide a more objective, accurate, and efficient solution by applying the Simple Additive Weighting (SAW) method. The SAW method was selected due to its ability to handle multi-criteria decision-making in a simple and effective manner through weighted summation of each alternative based on predetermined criteria. The criteria used in this study include discipline, work quality, attendance, teamwork, and initiative. The system implementation was developed using the PHP programming language and a MySQL database. The development stages consist of literature review, data collection, requirements analysis, system design using UML, implementation, and system testing. The results indicate that the system is capable of accelerating the evaluation process, improving accuracy, and generating more objective and measurable employee evaluation recommendations. Therefore, the application of the SAW method is expected to serve as an effective decision support tool for the management of PT SJAL in determining the best employees.
Pengaruh Penggunaan Media Sosial Terhadap Ragam Bahasa Mahasiswa Akademi Refraksi Optisi Padang Khairalfi Jumanisa Amril; Ihsan Saunir
Jurnal Penelitian Dan Pengkajian Ilmiah Eksakta Vol 5 No 1 (2026): Jurnal Hasi Penelitian Dan Pengkajian Ilmiah Eksakta - JPPIE
Publisher : LPPM Universitas Dharma Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jppie.v5i1.2484

Abstract

Pengaruh Rasio Etanol-Air terhadap Rendemen dan Aktivitas Sitotoksik Ekstrak Daun Azadirachta Indica Samuel Billie Tua Sinaga; Putri Ramanda; Oki Rokhim Mawakhid; Winda Shari; Khafit Wiradimafan; Avidlyandi .; Morina Adfa
Jurnal Penelitian Dan Pengkajian Ilmiah Eksakta Vol 5 No 1 (2026): Jurnal Hasi Penelitian Dan Pengkajian Ilmiah Eksakta - JPPIE
Publisher : LPPM Universitas Dharma Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jppie.v5i1.2491

Abstract

Penerapan Metode Hazop dalam Identifikasi Bahaya dan Pengendalian Risiko K3 pada Proyek LRT Jakarta Fase 1B Najwa Putri Indra; Ari Syaiful Rahman Arifin; Fitra Rifwan; Totoh Andayono
Jurnal Penelitian Dan Pengkajian Ilmiah Eksakta Vol 5 No 1 (2026): Jurnal Hasi Penelitian Dan Pengkajian Ilmiah Eksakta - JPPIE
Publisher : LPPM Universitas Dharma Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jppie.v5i1.2513

Abstract

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