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All Journal AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian Jurnal Ilmiah Hijau Cendekia Jurnal Penelitian Kebijakan Pendidikan JURNAL ILMIAH AGRINECA ARBITRASE: JOURNAL OF ECONOMICS AND ACCOUNTING Agricultural Science GANESHA: Jurnal Pengabdian Masyarakat PROFICIO: Jurnal Pengabdian Masyarakat Jurnal Penelitian Kebijakan Pendidikan Room of Civil Society Development Journal of Community Capacity Empowerment Journal of Rural and Urban Community Studies Room of Civil Social Development Jurnal Penelitian Kebijakan Pendidikan
Teguh Supriyadi
Universitas Tunas Pembangunan Surakarta (UTP)
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Social Sciences Other

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Bioaccumulation of Copper and Stress Response In Chili Plants Under Organic Management: Bioaccumulation of Copper and Stress Response In Chili Plants Under Organic Management Priyadi, Sapto; Haryuni; Supriyadi, Teguh; Daryanti
JURNAL ILMIAH AGRINECA Vol 26 No 1 (2026): JURNAL ILMIAH AGRINECA
Publisher : Fakultas Pertanian, Universitas Tunas Pembangunan Surakarta (UTP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/afp.v26i1.6144

Abstract

Copper (Cu) is an essential micronutrient for plant growth, but at elevated concentrations it can become toxic, particularly in agricultural systems transitioning to organic practices where organic fertilizers are applied intensively. This study aimed to evaluate the bioaccumulation of Cu and physiological stress responses in chili plants (Capsicum annuum L.) cultivated under varying doses of cattle manure in a transitional organic farming system. The experiment was arranged in a completely randomized block design with manure application rates ranging from 15 to 50 tons per hectare. Observed parameters included yield, Cu concentration in the fruit, and food safety indicators such as Bioaccumulation Factor (BAF), Estimated Weekly Intake (EWI), Provisional Tolerable Weekly Intake (PTWI), and Target Hazard Quotient (THQ). The results showed that increasing manure dosage significantly enhanced fruit yield and Cu accumulation. However, no traces of cadmium (Cd) or lead (Pb) were detected, and Cu levels remained within acceptable food safety limits. The highest Cu concentration was observed at the highest manure dose, yet BAF and PTWI values indicated minimal risk to human health. These findings suggest that while cattle manure can improve crop productivity, it may also contribute to Cu accumulation that could trigger oxidative stress in plants. This research contributes to the scientific understanding of micronutrient dynamics, food safety, and plant stress physiology within sustainable organic farming systems.
Model Mediasi Surplus Underwriting pada Pengaruh Pendapatan dan Biaya terhadap Laba Asuransi Syariah Supriyadi, Teguh; Soeharjoto, Soeharjoto
ARBITRASE: Journal of Economics and Accounting Vol. 6 No. 3 (2026): March 2026
Publisher : Forum Kerjasama Pendidikan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/arbitrase.v6i3.3134

Abstract

This study aims to analyze the effect of Contribution Income, Claim Expenses, and Operating Expenses on Islamic Insurance Profit, with Underwriting Surplus as a mediating variable. This research is motivated by the importance of financial performance and risk management in improving the profitability of Islamic insurance companies. Therefore, this study is conducted to examine both the direct and indirect effects among variables and to assess the role of underwriting surplus in shaping Islamic insurance profits. The research method employed is a quantitative approach using Structural Equation Modeling–Partial Least Square (SEM-PLS) analysis with the SmartPLS 4 application. The data used are secondary data obtained from the annual financial statements of Islamic insurance companies in Indonesia during the research period. The research variables include Contribution Income, Claim Expenses, and Operating Expenses as independent variables, Islamic Insurance Profit as the dependent variable, and Underwriting Surplus as the mediating variable. Model testing is carried out through the evaluation of path coefficients and R-square values to assess the simultaneous contribution of the variables. The results indicate that Contribution Income and Operating Expenses do not have a significant effect on Underwriting Surplus, while Claim Expenses have a positive and significant effect on Underwriting Surplus. Furthermore, with respect to Islamic Insurance Profit, Contribution Income and Claim Expenses have a positive and significant effect, whereas Operating Expenses and Underwriting Surplus do not have a significant effect. In addition, the mediation test results show that Underwriting Surplus does not play a significant mediating role in the relationship between Contribution Income, Claim Expenses, and Operating Expenses on Islamic Insurance Profit. These findings suggest that the profits of Islamic insurance companies are more directly influenced by contribution income and effective claim management.
Co-Authors Achmad Fatchul Aziez Achmadi Priyatmojo Agung Prasetyo AGUS BUDIONO Agus Budiono Agus Budiono Agus Budiyono Alfiansyah Al Afghani Erping Sitompul Angga Firman Saputra Arbianti Ari Budiyanto Armaya, Finda Bayu, Tejo CATUR NUR WIBISONO Damayanti, Adhisty Puri DAMUD DAMUD Daryanti Daryanti DARYANTI DARYANTI David Do Rosario Marques Dewi, Tyas Soemarah Koernia Dwi Susilo Utami Dwi Susilo Utami Dwi Susilo Utami Endang Suprapti Fatkur Fatkur Fikri Ramadhani HARJANTO HARJANTO HARTOYO, EKO Haryuni Imani Fatihah, Syalaysa Indrawan, Muharram ismah Khoirunnisa Jayawarsa, A.A. Ketut Joko Setiono KD, Tyas Soemarah Kurniawati Darmaningrum Kusriani Prasetyowati Kusriani Prasetyowati Kusriani Prasetyowati Kusuma, Havit Aryan Listariyanto, Adwityam Padma Putra Mahananto Mardhika Sari, Siti Moh. Ruin Moh. Ruin Muharram Indrawan Muqqorobin, Bagus Mustika Ali Mustaqim Mutiarra Ridyo Arum Nadian Nur Aulia Nasikhun Nasikhun Norbertus Citra Irawan Permatasari, Dewi Rahmawati Intan PITOYO PITOYO Prabawati, Dimar Pratama, Ilham Gusni Priandini, Visa Putro, Herdyanto R Soelistijono Raden Mohamad Herdian Bhakti Sapto Priyadi Setie Harieni Siti Mardhika Sari Soeharjoto, Soeharjoto Soemarah KD, Tyas Sri Puji Lestari Sukamto Sukamto Sumarto Sumarto Supadi Suryaningsih, Agustina Tri Suswadi Sutarno Suyanti Tiara Maharani, Annissa Tyas Soemarah K. Tyas Soemarah K.D Tyas Soemarah K.D Tyas Soemarah KD Tyas Soemarah KD Tyas Soemarah KD Tyas Soemarah Koernia Dewi Tyas SOEMARAH KURNIA DEWI Umi Kulsum VERI DWI ARUM P.S WARYANTO WARYANTO Wati, Asni Dania Wicahyo, Imam Prasetyo Wiyono Wiyono wiyono Yuniastuti, Faustina