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All Journal Jurnal Akuntansi & Auditing Indonesia JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI Jurnal Magister Manajemen Proceedings of Annual International Conference Syiah Kuala University - Social Sciences Chapter Majalah Kedokteran Bandung Epsilon: Jurnal Matematika Murni dan Terapan Althea Medical Journal Jurnal Online Mahasiswa (JOM) Bidang Pertanian Jurnal Matematika & Sains Jurnal Ilmiah Mahasiswa Pendidikan Jasmani, Kesehatan dan Rekreasi Jurnal Ilmiah Mahasiswa Ekonomi Manajemen MAHKAMAH: Jurnal Kajian Hukum Islam Jurnal INSYPRO (Information System and Processing) Jurnal Ekonomi dan Bisnis JURNAL PENDIDIKAN ROKANIA Jurnal TAM (Technology Acceptance Model) LEKSIKA JOPS (Journal Of Pharmacy and Science) At-Tafkir International Journal of Supply Chain Management Jurnal Kartika Kimia PROGRESIF: Jurnal Hukum Jurnal Ekonomi dan Kebijakan Publik Indonesia Jurnal Agrium JURNAL EDUKASI NONFORMAL Al-Qadha: Jurnal Hukum Islam dan Perundang-Undangan Jurnal AL-AHKAM SUPERMAT (JURNAL PENDIDIKAN MATEMATIKA) International Journal Reglement & Society (IJRS) Akrab Juara : Jurnal Ilmu-ilmu Sosial Asia-Pacific Journal of Public Policy DEDIKASI PKM Jurnal Kemaritiman: Indonesian Journal of Maritime Enggang: Jurnal Pendidikan, Bahasa, Sastra, Seni, dan Budaya Proceedings of International Conference on Multidiciplinary Research INTERNATIONAL JOURNAL OF CULTURAL AND SOCIAL SCIENCE Proceeding International Seminar of Islamic Studies JURNAL PAI: Jurnal Kajian Pendidikan Agama Islam Chemical Engineering Journal Storage (CEJS) Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) PENGABDIAN SOSIAL Jurnal Teknik Mesin Sinergi Jurnal Riset Rumpun Ilmu Kedokteran (JURRIKE) Jurnal Riset Rumpun Agama dan Filsafat TITIK DUA: Jurnal Pembelajaran Bahasa dan Sastra Indonesia Jurnal Penelitian Ekonomi Manajemen dan Bisnis Jurnal Ilmiah Mahasiswa Agroekoteknologi Jurnal Insan Pendidikan dan Sosial Humaniora Agents: Journal of Artificial Intelligence and Data Science Seminar Nasional Hasil Penelitian LP2M UNM Jurnal Riset Rumpun Ilmu Sosial, Politik dan Humaniora (JURRISH) Journal of Educational Innovation and Public Health Jurnal Abdimas Indonesia Jurnal Sistem Informasi dan Ilmu Komputer Jurnal Yudistira Jurnal Nuansa: Publikasi Ilmu Manajemen dan Ekonomi Syariah Abdimas Terapan: Jurnal Pengabdian Kepada Masyarakat Terapan Chemedu: Jurnal Ilmiah Pendidikan Kimia Jurnal Ilmiah Ekonomi dan Manajemen Atmosfer: Jurnal Pendidikan, Bahasa, Sastra, Seni, Budaya, Dan Sosial Humaniora Ihsanika : Jurnal Pendidikan Agama Islam Perspektif: Jurnal Pendidikan dan Ilmu Bahasa Maslahah: Jurnal Manajemen dan Ekonomi Syariah Journal of Animal Nutrition and Production Science Quantum Wellness : Jurnal Ilmu Kesehatan JURNAL ILMIAH EKONOMI, MANAJEMEN, BISNIS DAN AKUNTANSI Jurnal Intelek Insan Cendikia Tarbi: Jurnal Ilmiah Mahasiswa Jurnal Mesin Sains Terapan Proceeding International Conference Of Innovation Science, Technology, Education, Children And Health Proceeding International Conference Of Innovation Science, Technology, Education, Children And Health Jurnal TAM (Technology Acceptance Model) Jurnal Ilmu Kedokteran dan Kesehatan Indonesia Edumaspul: Jurnal Pendidikan Jurnal Mappesona
Faisal Faisal
Algebra Research Dvision Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung
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PENGARUH STRUKTUR MODAL, PROFITABILITAS DAN LIKUIDITAS TERHADAP NILAI PERUSAHAAN PADA PT BUKIT ASAM TBK PERIODE 2012 - 2024 Rafly Satrio; Faisal Faisal
JURNAL ILMIAH EKONOMI, MANAJEMEN, BISNIS DAN AKUNTANSI Vol. 3 No. 2 (2026): MARET 2026
Publisher : CV. KAMPUSA AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jemba.v3i2.2195

Abstract

This study aims to determine the effect of Capital Structure, Profitability, and Liquidity on Firm Value at PT Bukit Asam Tbk for the period 2012-2024. The research method used is a quantitative approach with multiple linear regression analysis using secondary data obtained from the company's annual financial statements, sample stock summary reports, financial position statements and income statements. The independent variables in this study include capital structure (DER), profitability (ROA) and liquidity (CR), while the dependent variable is firm value as measured by Price to Book Value (PBV). The results of the study indicate that partially, DER does not affect firm value with a significance value of 0.520 > 0.05. ROA does not affect firm value with a significance value of 0.248 > 0.05. Meanwhile, CR affects PBV with a significance value of 0.011 < 0.05. Simultaneously, the three independent variables have a significant effect on firm value, with a coefficient of determination (R²) of 0.564. This shows that 41.8% of the variation in company value can be explained by these three variables, while the remaining 58.2% is influenced by other factors.  
Pengaruh Struktur Modal, Likuiditas, Dan Ukuran Perusahaan Terhadap Kinerja Keuangan Pada PT. Waskita Karya (Persero), Tbk Periode 2015-2024 Putriani Putriani; Faisal Faisal
JURNAL ILMIAH EKONOMI DAN MANAJEMEN Vol. 4 No. 5 (2026): MEI
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jiem.v4i5.9856

Abstract

This study aims to analyze the effect of Debt to Equity Ratio (DER), Current Ratio (CR), and Company Size on Financial Performance at PT Waskita Karya (Persero) Tbk for the 2015-2024 period. This study uses a descriptive method with a quantitative approach. The data used are secondary data obtained from the company’s financial statements during the study include descriptive stastistical analysis, classical assumption tests, multipe linear regression analysis, correlation coefficients, coefficients of determination, and hypothesis testing using t-tests and f-tests using SPSS version 26. The results indicate that the Debt to Equity Ratio (DER) partially has a significant negative effect on Financial Performance with a significance value of 0.088 < 0.5 and t-value > t-table (|-3.487| > 2.051). Meanwhile, the Current Ratio (CR) did not significantly influence Financial Performance, with a significance value of 0.218 > 0.05 and a calculated t-value < t-table (|1.388| < 2.051). Similarly, Company Size did not significantly influence Financial Performance, with a significance value of 0.434 > 0.05 and a calculated t-value < t-table (|-0.823| < 2.051). Simultaneously, Debt to Equity Ratio (DER), Current Ratio (CR), And Company Size did not significantly influeence Financial Performance, with a significance value of 0.059 > 0.05 and a calculated f-value > f-table (|4.375| > 4.07).
Penerapan Model Problem Based Learning Berbantuan e-Module Fungsi untuk Meningkatkan Kemampuan Pemecahan Masalah Maydatul Zannah; Faisal Faisal; Fenny Anggreni
Supermat : Jurnal Pendidikan Matematika Vol 9 No 2 (2025): Supermat : Jurnal Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33627/sm.v9i2.3974

Abstract

The low level of students’ mathematical problem-solving abilities and the frequent use of conventional approaches in the learning process are the main reasons for conducting this study. This study aims to examine the implementation of a problem-based learning model supported by an e-module to improve mathematical problem-solving abilities on the topic of functions. This study applies a quantitative approach designed in a pre-experimental design with one pretest/posttest group. The research respondents were 25 grade VIII students at one of the public schools in Langsa District in the 2024/2025 academic year who were selected purposively. The instrument used in the data collection process was an essay test derived from the Polya problem-solving framework, which had previously been assessed for validity and reliability. This study analyzed the results of descriptive test data showing that the average pretest score of 62.52 increased to 74.04 in the posttest, so there was an increase of 11.52 points after the implementation of PBL learning assisted by e-modules. The pretest and posttest data had a significance value of 0.000 > 0.05 according to the Kolmogorov–Smirnov normality test, indicating that both were normally distributed and met the requirements for the paired sample t-test. Thus, the application of learning with the Problem Based Learning (PBL) model assisted by e-modules has been proven to improve students' mathematical problem-solving abilities in the main material of functions.
Kandungan Metabolit Sekunder dan Bioaktivitas Daun Afrika (Vernonia amygdalina) Rahel Sitompul; Sania Losiana Yomaki; Susilowati Susilowati; Faisal Faisal; Ramlah Ramlah; Yunita Pare Rombe; Hermawati Abubakar; Murtihapsari Murtihapsari
Jurnal Kartika Kimia Vol 9 No 1 (2026): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v9i1.1062

Abstract

Daun Afrika (Vernonia amygdalina), anggota famili Asteraceae, merupakan salah satu tanaman yang telah digunakan secara tradisional di berbagai negara tropis. Tanaman ini diketahui memiliki berbagai khasiat biologis, seperti antibakteri, antioksidan, antidiabetik, dan antimikroba. Berbagai aktivitas biologis tanaman ini diduga berkaitan dengan keberadaan senyawa metabolit sekunder yang dihasilkan tanaman sebagai bagian dari mekanisme pertahanan alami, seperti flavonoid, alkaloid, triterpenoid, tanin, saponin, dan steroid yang berperan penting dalam aktivitas farmakologis. Penelitian ini bertujuan untuk mengetahui kandungan fitokimia, analisis FTIR dan GCMS serta bioaktivitas antibakteri dan antioksidan. Hasil ekstrak etil asetat daun Afrika (Vernonia amygdalina) menunjukkan adanya kandungan senyawa alkaloid, flavonoid, dan triterpenoid. Uji bioaktivitas memperlihatkan bahwa ekstrak ini memiliki aktivitas antibakteri kategori kuat dengan daya hambat tertinggi pada konsentrasi 1000 µg/mL, yaitu sebesar 12,1 mm terhadap Escherichia coli sedangkan pada Staphylococcus aureus mencapai 91 mm dengan kategori sangat kuat serta aktivitas antioksidan sedang dengan nilai IC50 sebesar 149,10 ppm. Analisis FTIR mengindikasikan keberadaan gugus hidroksil (O-H), alifatik (C-H), dan eter/alkohol (C-O) yang terkonfirmasi sebagai senyawa bioaktif. Sementara itu, hasil GC-MS teridentifikasi berdasarkan persen kemiripan senyawa utama seperti Linalool (89,23%), Neral (86,06%), Neophytadiene (91,78%), 2,6-octadienal, 3,7-dimethyl-,(E) (95,93%), Phytol (96,86%) dan 6,11-Dimethyl-2,6,10-dodecatrien-1-ol (69,85%) yang termasuk golongan terpenoid dengan aktivitas antibakteri dan antioksidan.
Temuan Baru Ekstrak Kulit Nanas Sebagai Potensi Antidiabetes pada Tikus Putih (Rattus Norvegicus) Diinduksi Streptozotocin Eva Oktariani; Santi Widiasari; Faisal Faisal; Mega Rahayu Putri; Nurfadhilatusholiha Nurfadhilatusholiha
JURNAL FARMASI DAN MAKANAN Vol 7 No 2 (2024): Journal of Pharmacy and Science
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/jops.v7i2.4613

Abstract

Diabetes mellitus is chronic and metabolic disease which occurs because of the increase of blood glucose level or hyperglycemia caused the body which cannot produce or use insulin effectively. Hyperglycemia has a glucotoxic effect resulting in an increase in ROS (reactive oxygen species) thus inducing liver pathogenesis which promotes severe inflammatory and apoptotic responses, as indicated by an increase in the SGPT enzyme. The pineapple peel contains flavonoid. It is known of having a strong antioxidant activity. With the giving of pineapple peel extract, it is expected to decrease the blood glucose level. This research to find out the the effect of pineapple peel extract (Ananas comusus L. Merr) on decreasing blood glucose levels and SGPT levels in male white rats (Rattus norvegicus) induced by streptozotocin. This research is an experimental study with a research design of pretest and posttest control group design. The samples consisted of 18 rats divided into 6 groups consisted of: normal control, negative control, and positive control group given metformin, and pineapple peel extract with dose 200mg/KgBW, 300mg/KgBW and 500mg/KgBW for 28 days and the measurement of the rats blood glucose was conducted by blood glucose test meter at day 1, day 4 (after post inductionof STZ 45mg/KgBW given by intraperitoneal), and day 29. The analysis result of One Way ANOVA showed that pineapple peel extract with dose 200mg/KgBW, 300mg/KgBW, and 500mg/KgBW decrease the blood glucose level significant (p-value<0,05) with negative control group. There was no significant difference between 200mg/KgBW, 300mg/KgBW and 500mg/KgBW compared with positive control (p>0.05). There was an effect of pineapple peel extract administration on the SGPT levels of STZ-induced rats with a dose of 200mg/kg BW, 300mg/kg BW, 500mg/kg BW (p-value <0.05). The administration of 300mg/kg BW pineapple peel extract had the highest decrease in SGPT levels compared to other groups. Pineapple peel extract (Ananas comosus L. Merr) can reduce blood glucose leveland SGPT levels in rats induced by streptozotocin with the greatest reduction at dose 300mg/KgBW.
Perkecambahan Benih Tomat (Solanum Lycopersicum L.) Kadaluarsa Pada berbagai Media Semai Menggunakan Alat F&F Manual Germinator Tamara Faradilla; Faisal Faisal; Muhammad Rafli; Muhammad Yusuf Nurdin; Nazimah Nazimah; Nilahayati Nilahayati
Jurnal Ilmiah Mahasiswa Agroekoteknologi Vol. 4 No. 2 (2025): Vol 4, No 2 (2025): Jurnal Ilmiah Mahasiswa Agroekoteknologi (JIMATEK) Juni 202
Publisher : Department of Agroecotechnology Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh perlakuan umur kadaluarsa benih dan jenis media semai yang berbeda terhadap viabilitas benih dan vigor benih serta laju pertumbuhan benih tomat. Data menunjukkan bahwa perlakuan umur benih berpengaruh nyata terhadap daya kecambah, indeks vigor, keserempakan tumbuh, kecepatan tumbuh dan bobot kering kecambah normal. Sementara itu, perlakuan media semai yang berbeda memberikan pengaruh yang sangat nyata terhadap viabilitas dan vigor benih tomat. Selain itu, terdapat interaksi yang nyata antara perlakuan umur benih dan jenis media yang berbeda terhadap semua parameter viabilitas benih dan vigor benih tomat.
Aplikasi Pupuk NPK Dan Biochar Sekam Padi Terhadap Pertumbuhan Dan Produksi Tanaman Kacang Tanah (Arachis hypogaea L.) Dimas Susilo; Usnawiyah Usnawiyah; Muhammad Yusuf Nurdin; Mira Humaira; Faisal Faisal
Jurnal Ilmiah Mahasiswa Agroekoteknologi Vol. 4 No. 2 (2025): Vol 4, No 2 (2025): Jurnal Ilmiah Mahasiswa Agroekoteknologi (JIMATEK) Juni 202
Publisher : Department of Agroecotechnology Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kacang tanah termasuk komoditas yang multifungsi sehingga permintaan akan kacang tanah di Indonesia semakin bertambah. Pemanfaatan kacang tanah yang beragam ternyata tidak diikuti dengan peningkatan jumlah produksi. Produksi kacang tanah di Indonesia terus mengalami penurunan produktivitas. Upaya yang dapat dilakukan untuk meningkatkan produksi kacang tanah, salah satunya adalah pemupukan dan penambahan bahan organik berupa biochar sekam padi. Penelitian ini bertujuan untuk mengetahui pengaruh perlakuan Pupuk NPK dan Biochar sekam padi terhadap pertumbuhan dan produksi tanaman kacang tanah. Penelitian ini menggunakan kacang tanah varietas Kelinci serta menggunakan rancangan acak kelompok (RAK) yang terdiri dari dua faktor dengan tiga ulangan. Faktor pertama yaitu Pupuk NPK (N) terdiri dari 4 taraf yaitu N0: tanpa pemberian pupuk NPK, N1: pemberian 20 g/plot pupuk NPK, N2: pemberian 30 g/plot pupuk NPK dan N3: pemberian 40 g/plot pupuk NPK. Faktor kedua yaitu Biochar Sekam Padi (B) terdiri dari 3 dosis yaitu B0: tanpa pemberian biochar, B1: pemberian 1 kg/plot biochar, dan B2: pemberian 2 kg/plot biochar. Beberapa variabel yang diamati yaitu tinggi tanaman, diameter batang, berat polong pertanaman, berat biji kering per plot dan berat kering 100 biji. Pemberian pupuk NPK 40 g/plot (N3) merupakan hasil terbaik untuk meningkatkan setiap peubah yang diamati. Sedangkan untuk pemberian biochar sekam padi dosis terbaik terdapat pada 2 kg/plot untuk meningkatkan peubah berat kering 100 biji. Adanya interaksi antara kombinasi perlakuan pupuk NPK 40 g/plot + biochar sekam padi 2 kg/plot pada berat kering 100 biji tanaman kacang tanah.
Co-Authors A Aryati A Haris A. Kasyifan Sidqi Addistyane Puristasari Adelia Uswatun Hasanah Afif Agus Nur Soleh Ahamd Risal Ahmadun Syawal Ahmed Ibrahim Maymoun Muazeib Aida Imtihana Aisjah Juliani Noor Ali Akbar, Syahro Alindawati Dako Ami Amelia Amirudin Anang Makrup Andi Gultom Andris Wihelmus Dimara Anggi Fajariani Anton Wibisono Anwar Anwar Apiek Gandamana Arnila Melina Asriani Asriani Aulia Darmawan Azhari Azhari Azis Budianto Basir Achmad Cut Rizka Safrianti Dahwadin, Dahwadin DAITIN TARIGAN Darmadi Darmadi Darmein Darmein DEVI YANIAR WI HARGINA DEWI ANGGRAINI Dewi Purnamasari Dimas Susilo Dinda Saputri Dody F. Pandimun Ambarita Dody Feliks Pandimun Ambarita DYAH SIH RAHAYU Ebbyh Rukli Edizal Hatmi Eka Prasetya Yunus Eli Nurliza ELIHAMI, ELIHAMI Elsi Agustin ELVI MAILANI Elvina Elvina Erni Yohani Mahtuti Ester Linawati Manurung Eva Oktariani Evi Dwi Prastiwi Fadhlillah Fadhillah Fahirul Muhar Fahru Rizal Isyafa Fatah Hidayat Fenny Anggreni Fidhia Aruni Fuad Fuad Gresela Rambu Kaleka Mali, Aquina Gunawan Gunawan Hadis, Abdul Halimatussakdiah Halimatussakdiah Halimatussakdiah Hasan Basri Heda Melinda D. Nataprawira Hermawati Abubakar Hikalmi, Hikalmi Husaini Husaini Husna P. Tambunan Ignasius Kalos Imam Ghozal Indani Indani Intan Cahyani Rachman Intan Muchtadi Alamsyah Irawati Irawati Irman Idrus Islami, Deri Isna Rosita Rahmah Jenne Syarif Juliwati E Sianturi Jummaini Jusmawati Massalesse Keiko Harsa Muhtadin Kurnia An Najiah LALA JELITA ANANDA Lina Tri Maulida M Ali Anto M Quraisy M. Navidhiyaulhaq M. Yasdar M. Zuhrul Ikfa Mahmudah Mahmudah Maisyuri Maisyuri Malikhatun Khasanah Maydatul Zannah medal lintas perceka Mega Rahayu Putri Melati Aderina Mia Efrina Mia Fitria Mira Humaira Mochammad Imron Awalludin Mohamad, Roni Muh. Nur Muhamad Guruh Muhammad Ahsar Karim Muhammad Rafli Muhammad Ridwan Muhammad Ruswandi Djalal Muhammad Yusuf Nurdin Murtihapsari Murtihapsari N Lilis Suryani Nadia Raifa Nawa Kartika Naeklan Simbolon Nasir Azis Naufa Setyowati Nazamuddin Nazamuddin Nazimah Nazimah Nia Rahmadani Arman Nilahayati Novi Sylvia Novi Yuniar Nur Israwati Nurfadhilatusholiha Nurfadhilatusholiha Nurhayati B. Nuriana Nuriana Nurjannah Nurmayani Nurmayani Nursariani Simatupang Nursiang Nursiang Nurul Azmi Nurul Kusnadiyah Nurwijayanti Pardi Affandi Previta Zeizar Rahmawati Puji Ekawati Putriani Putriani Rabiatul Hadawiah Lubis Rafly Satrio RAHEL SITOMPUL Ramlah Ramlah RATNA SARI Razali Razali Refiyanda Refiyanda Rifka Devi Rima Julia Sari Riska Aprilia Robenhart Tamba Romi Juliansyah Roykhan Hidayat Rozanna Dewi Said Musnadi Sania Losiana Yomaki Saniyatul Khoiriyah Santi Widiasari Sari Sania Tampubolon Sartina Sartina Septian Prawijaya Sirait, Albert Pauli SITI FATIMAH Siti Mutoharoh Siti Naila Fauzia Siti Nur Fatimah Sofyan Idris Somantri, Muhamad Dani Suarti Djafar Suparno Suparno Surtina, Dara Susilowati Susilowati Tamara Faradilla TARMIZI ACHMAD Thaibah Thaibah Tri Jatmiko Wahyu Prabowo USMAN PATO Usnawiyah Usnawiyah Vivi Mai Yarni Wafiq Khofifah Wahyu Nurul F. Wasilah Wasilah Wirdatun Jannah Yasmirah Mandasari Saragih Yeni Marlina Yohanes Reston N.A Laia Yuni Yulida Yunita Pare Rombe Yunita Purba Zikri Muhammad Zusma Widawaty A Wahab