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All Journal Jurnal Ilmu Pertanian Indonesia Aceh Journal of Animal Science Buletin Ilmu Makanan Ternak Jurnal Ilmu Nutrisi dan Teknologi Pakan JOURNAL OF APPLIED MANAGERIAL ACCOUNTING Al-Kharaj: Journal of Islamic Economic and Business Aptekmas : Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Journal of Administrative and Sosial Science (JASS) Jurnal Teknologi Informasi Journal of Research and Development on Public Policy Sintesa Triwikrama: Jurnal Ilmu Sosial JEBD Journal of Humanities and Social Studies International Journal of Economics, Business and Innovation Research Journal of Business Economics and Management Strada Journal of Radiography Jurnal Komputasi
Arif Darmawan
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Fulvic Acid from Oil Palm Empty Fruit Bunches as Feed Additive Improves Digestive Tract and Intestinal Morphology in Broilers: Aditif Pakan Asam Fulvat Tandan Kosong Kelapa Sawit untuk Memperbaiki Saluran Pencernaan dan Morfologi Usus pada Ayam Pedaging Dimawarnita, Firda; Dwi Margi Suci; Mugia Reksa Wicaksari; Yora Faramitha; Erwinsyah, Fayyadh Altamis; Donny Nugroho Kalbuadi; Didiek Hadjar Goenadi; Komang Gede Wiryawan; Arif Darmawan
Jurnal Ilmu Nutrisi dan Teknologi Pakan Vol. 23 No. 2 (2025): Jurnal Ilmu Nutrisi dan Teknologi Pakan
Publisher : Departemen Ilmu Nutrisi dan Teknologi Pakan Fakultas Peternakan Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jintp.23.2.138-145

Abstract

The use of Antibiotic Growth Promoters (AGPs) in the poultry industry led to farmers’ dependence on antibiotics. Therefore, a safer alternative feed additive, such as fulvic acid, was needed. This study aimed to evaluate the effectiveness of fulvic acid extracted from oil palm empty fruit bunches (FA-OPEFB) as a feed additive on broiler chickens’ digestive tract and intestinal morphology. A total of 150 broiler chickens were used in a Completely Randomized Design (CRD) consisting of three treatments and five replications: P0 (drinking water without FA-OPEFB), P1 (drinking water with 0.1% FA-OPEFB), and P2 (drinking water with 0.2% FA-OPEFB). Observed variables included the relative weight and length of the digestive tract and intestinal morphology. The results showed that the addition of FA-OPEFB in drinking water significantly affected the ileum percentage, villus height, crypt depth, and villus surface area. It was concluded that 0.2% FA-OPEFB in drinking water reduced the relative weight and length of the ileum and improved intestinal morphology in broiler chickens. Key words:           broiler chicken, digestive tract, fulvic acid, intestinal morphology, OPEFB
Pengaruh Kinerja Ekonomi dan Kinerja Lingkungan Hidup Terhadap Nilai Perusahaan Mutiara Zahrani; Arif Darmawan
JOURNAL OF APPLIED MANAGERIAL ACCOUNTING Vol. 9 No. 2 (2025): JOURNAL OF APPLIED MANAGERIAL ACCOUNTING
Publisher : Pusat P2M Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jama.v9i2.10091

Abstract

This study explores the relationship between economic and environmental performance and firm value in the consumer non-cyclical sector listed on the Indonesia Stock Exchange during 2020–2023. The sample consists of companies that consistently published sustainability reports. Economic performance is measured using Economic Value Added (EVA) is a comprehensive and to reflect long-term value creation, Meanwhile, environmental performance is evaluated based on ESG ratings published by the BGK Foundation. To determine firm value, Tobin’s Q is used as the main indicator, with leverage introduced as a control factor to account for capital structure influence. A quantitative method is employed, utilizing secondary data. A total of 18 companies were purposively selected, resulting in 72 observations over four years. The analysis uses panel data regression, beginning with descriptive statistics, followed by model selection, classical assumption tests, and hypothesis testing. The findings indicate that EVA has a significant positive effect on firm value, suggesting that strong economic performance enhances market valuation. In contrast, ESG scores are found to negatively influence firm value, implying that higher environmental disclosures may not align with investor expectations in this context. Simultaneous testing confirms the overall significance of the independent variables, while leverage does not show a notable impact.
Pendampingan Optimalisasi Digital pada Social Enterprise di Batam Jannah, Izzatul; Imanez Desta Anria; Riskiyani Putri Nandika; Dzakya Husnul Haura; Julia Ariani Utami; Catrin Virginia Saragi; Astica Wulan Dani; Zaskia Nazwa Maharani; Adika Triyansyah; Muhammad Raghib Alghifari; Susi Lestari; Nadia Fathurrahmi Lawita; Dewi Junita; Sarah Ulfah Al Amany; Mega Mayasari; Arif Darmawan; Danar Irianto; Muhammad Ikhlash
Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Vol. 7 No. 2 (2025): Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/abdimaspolibatam.v7i2.11812

Abstract

This community service activity aims to enhance the capacity of social enterprise actors in Batam City through training and mentoring on the use of digital applications. Social enterprise is a form of enterprise that is not only profit-oriented but also has a social mission to create a positive impact on the community. Prior to the training, the implementation team conducted interviews and data collection to identify the level of digital literacy, technology needs, and challenges faced by the social enterprise actors. The data collection results showed that most social enterprise actors have high motivation to develop but are still limited in their mastery of digital technology and online marketing. The digital application training activities, carried out by lecturers and students of the Batam State Polytechnic, were then focused on the use of Microsoft Excel and Canva digital applications. These two applications were chosen based on the priority needs of the Social Enterprises, which are expected to assist in financial management, promotion, and increasing the operational efficiency of their social businesses. Through this training, social enterprise actors are expected to be able to optimize digital technology to expand the social and economic impact of their businesses. This activity is a strategic step in driving digital transformation based on community empowerment.
IMPLEMENTASI CATBOOST DENGAN MENGGUNAKAN HYPER-PARAMETER TUNING BAYESIAN SEARCH UNTUK MEMPREDIKSI PENYAKIT DIABETES Arif Darmawan; Muliadi Muliadi; Dwi Kartini; Triando Hamonangan Saragih; Radityo Adi Nugraha
Jurnal Komputasi Vol. 11 No. 2 (2023)
Publisher : Jurusan Ilmu Komputer Fakultas MIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/komputasi.v11i2.13746

Abstract

Diabetes merupakan masalah kesehatan masyarakat dunia dengan prevalensi yang selalu meningkat setiap tahun. Penyakit Diabetes ini perlu didiagnosis sejak dini menggunakan algoritma klasifikasi. Dataset yang digunakan yaitu PIMA Indians Diabetes Database dari Kaggle dengan 768 data dan 8 fitur. Metode pengklasifikasi yang digunakan yaitu Catboost. Klasifikasi Catboost dapat bekerja baik dalam menangani ketidak seimbangan data, namun kinerja algoritma ini masih bisa ditingkatkan lagi. Untuk mengatasi permasalahan tersebut peneliti menggunakan solusi Hyper-parameter tuning. Catboost memiliki beberapa Hyper-parameter yang dapat dikonfigurasi untuk meningkatkan kinerja dari model. Masalah mengidentifikasi nilai yang baik untuk Hyper-parameter disebut Hyper-parameter tuning. Metode Hyper-parameter tuning yang digunakan yaitu Bayesian Search yang kemudian divalidasi menggunakan 10-Fold Cross Validation sebanyak 10 iterasi. Hyper-parameter Catboost yang dikonfigurasi antara lain depth, learning_rate dan Iterations. Pengujian pada Catboost tanpa Hyper-parameter tuning memperoleh nilai presisi sebesar 0,625% dan nilai AUC sebesar 0,868%. Untuk pengujian Catboost dengan Hyper-parameter tuning memperoleh presisi sebesar 0,634 % dan AUC sebesar 0,901%. Menambahkan Hyper-parameter tuning Bayesian Search pada metode klasifikasi Catboost dapat meningkatkan hasil nilai akurasi dan nilai AUC.
Member Service Quality Development Strategy Using SWOT Analysis Study on Bhina Raharja Savings and Loans Cooperative in Rembang Regency Arif Darmawan; Mamik Indaryani; Dwi Soegiarto
Al-Kharaj: Journal of Islamic Economic and Business Vol. 8 No. 1 (2026): All articles in this issue include authors from 3 countries of origin (Indonesi
Publisher : LP2M IAIN Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/kharaj.v8i1.9754

Abstract

This study aims to analyze service quality at the Bhina ​​Raharja Savings and Loan Cooperative in Rembang Regency using the 8P marketing mix framework and SWOT analysis. The study uses a qualitative approach. Data were collected through observation, in-depth interviews with five informants consisting of managers, service officers, and members, as well as supporting document studies. The results of the study found four main themes, namely the spirit of kinship as a relational strength based on trust but not yet standardized in written SOPs, the convenience and accessibility of physical services that are quite good but not yet integrated with digital services, the transparency of costs that are not fully understood by members, and the need for digital modernization as both an opportunity and a challenge for organizational adaptation. The SWOT analysis shows that the strengths lie in social capital and emotional closeness, while the weaknesses lie in manual systems, limited standardization, and cost communication. Opportunities stem from the trend of digitalization and community economic awareness, while threats come from fintech and digital banking. Recommended strategies include humanistic digital transformation, increased cost transparency, revitalization of human resource competencies, and optimization of service facilities. Improving service quality requires a balance of family values, transparency, and technological innovation to strengthen loyalty and competitiveness in cooperatives.
Co-Authors . Sumiati A.S. Satyaningtijas Adi Irawan Setiyanto Adika Triyansyah Alfonsa Dian Sumarna Ambya, Ambya Anggun Dea Pitaloka Anugrah Rizki Samudra Arivina Ratih Yulihar Taher Astica Wulan Dani Catrin Virginia Saragi Danar Irianto Davanie Milhatin Sirfa dedi kurniawan Dewi Prabuwati Didiek Hadjar Goenadi Dimawarnita, Firda Donny Nugroho Kalbuadi Dwi Kartini Dwi Margi Suci Dwi Soegiarto Dzakya Husnul Haura Endang Indarturti Endang Indartuti Erwinsyah, Fayyadh Altamis Fadia Gusniarti Hanifah Khoirunnisa Heri Purwanto I Komang Gede Wiryawan Imanez Desta Anria Jannah, Izzatul Jayawarsa, A.A. Ketut Julia Ariani Utami Latiffa Aurelien Putri Mamik Indaryani Marselina Mayasari, Mega Mila Dahliana Harahap Mugia Reksa Wicaksari Muhamad Prastyo Dirgantara Muhammad Ikhlash Muhammad Irsyad Halim Muhammad Naufal Akbar Muhammad Raghib Alghifari Muhammad Ramadhan Slamet Muhammad Roisul Basyar Muliadi Muliadi Mutiara Zahrani Nadia Fathurrahmi Lawita Nairobi Nairobi Nairobi, Nairobi Nanik Lestari Naufal Alfarisi Noer Soelistijaningsih Novriyanti Novriyanti Radityo Adi Nugraha Ramadhani, Ghina Riskiyani Putri Nandika Rismaul Mukhaiyaroh Ronald Tarigan Saragih, Triando Hamonangan Sarah Ulfah Al Amany Sinarti Sinarti Siswahyudianto Susi Lestari Syafinatur Rochmah Tedy Rusman Thol’at Hamdi Tri Palupi, Merry Fridha Velinda Ayu Sasmita WAHYU NURJAYA WK Widia Anggi Palupi Widiyatmo Ekoputro Widya Hermana Wika Arsanti Putri Yohana Kasiwalli Yora Faramitha Zaskia Nazwa Maharani