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The Identification of the Existence of a Fault Structure on Gravity and Audio Magnetotulleric Data in the Area of Mount Kubing, Belitung Sanjaya, Edi; Nafian, Muhammad; Suwondo, Suwondo; Fadillah , Muhammad Hasnan; Shafa, Dias
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 13 No. 1 (2023)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v13n1.p81-94

Abstract

Mount Kubing holds significant potential as a tourist attraction, despite being situated in a tectonic zone prone to faults. Its size and attractions make it suitable for both travel and exploration. Hence, the study has been conducted to identify subsurface structures that can identify the structural fault lines when the mitigation occurred during an earthquake or landslide. The derivative analysis method is used to determine the type of structures. The results of the derivative analysis indicate the direction of the fault structure on a Northwest-Southeast, and Southwest -Northeast that is controlled by two different faults. The fault caused by depression from granitic body and silt with FHD and SVD gravity value around -3 mGal until 1 mGal that showing the indication of normal fault and reverse fault in the research location with depth estimation curve (RAPS) approximately 500 meters in the subsurface of the earth. Whereas in 2D Audio Magnetotelluric modelling, it is identified that the groundwater reservoir layer is at a depth of 70-85 meters below the surface which is recognized as a semi-stressed reservoir with a value of 20-27 mv/nT in complex silt and sandstone.
Fatwa of the Indonesian Council of Ulama (MUI) Number 11 of 2012 on the Status of Children Born Out of Wedlock: An Analysis of Maqasid Al-Shari’ah Using Jasser Auda's System Approach Sanjaya, Edi; Hasanah, Idaul; Zakaria, Soni; Zuhri, Muhammad Arif
Sakina: Journal of Family Studies Vol 8 No 4 (2024): Sakina: Journal of Family Studies
Publisher : Islamic Family Law Study Program, Sharia Faculty, Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/jfs.v8i4.12442

Abstract

This research examines the status of children born out of wedlock under Fatwa No. 11 of 2012 issued by the Indonesian Council of Ulama (MUI) and analyzes it through the lens of Maqasid Shariah using Jasser Auda’s system approach. Employing a qualitative method with descriptive analysis and a philosophical approach to Islamic law, the study focuses on ensuring the welfare and rights of children born out of wedlock. It highlights the importance of scholars' cognitive construction, such as Ibn Taimiyyah’s views, and the integration of arguments to prevent methodological reductionism. Emphasis is placed on protecting these children in line with Maqasid Shariah principles, including the use of modern tools like DNA testing to adapt Islamic law to contemporary needs. A multidimensional approach involving knowledge, psychology, and legality is essential to safeguard their rights. The hierarchical framework in Maqasid Shariah supports the recognition of biological fathers to ensure the child’s welfare and universal justice. The study argues that MUI Fatwa No. 11 should reflect Maqasid Shariah’s holistic and dynamic principles to align Islamic law with social changes. It asserts that reconstructing the lineage of children born out of wedlock is intended to affirm their inherent dignity (fitrah) as equal to other children, without endorsing adultery or undermining the institution of marriage in Islam. Ultimately, this approach seeks to uphold social justice and universal welfare.
Penerapan Pendekatan Saintifik dalam Pembelajaran Biologi untuk Meningkatkan Minat Belajar Siswa SMA 8 Surabaya Rozikin, Ahmad; Sanjaya, Edi
Journal of Science and Mathematics Education Vol. 1 No. 2 (2025): Journal of Science and Mathematics Education, June 2025
Publisher : Lembaga Publikasi Ilmiah Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70716/josme.v1i2.177

Abstract

The decline in students' interest in learning Biology has become a recurring issue at the senior high school level, including at SMA Negeri 8 Surabaya. This study aims to analyze the implementation of the scientific approach in Biology instruction as an effort to enhance students' learning interest. The scientific approach emphasizes the processes of observing, questioning, experimenting, reasoning, and communicating, and is expected to create active, creative, and meaningful learning experiences. The research method used is classroom action research (CAR), conducted in two cycles. The research subjects were 11th-grade science students at SMA Negeri 8 Surabaya. Instruments used included observation sheets, learning interest questionnaires, and documentation of students' learning outcomes. The results showed that the implementation of the scientific approach significantly increased students' learning interest, as indicated by improved participation in discussions, persistence in completing assignments, and increased learning interest questionnaire scores from cycle I to cycle II. These findings suggest that the scientific approach is not only curriculum-relevant but also effective in creating a learning environment that fosters students’ emotional and intellectual engagement. Therefore, it is recommended that this approach be widely adopted in Biology instruction as well as in other subjects at the secondary education level.
Antimicrobial Antimicrobial Properties of Pineapple Peel Extract in Beef Skin Gelatin-Based Meatball Products Hasma, Hasma; Ali, Muhamad; Sriasih, Made; Husaefa, Nadira; Sanjaya, Edi; Zakaria, M. Askari
Journal La Lifesci Vol. 7 No. 4 (2026): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v7i4.5984

Abstract

The aim of this study was to determine the microbiological parameters of meatballs prepared with beef skin gelatin extracted with pineapple peel after various storage periods. A laboratory approach to experiments and descriptive analysis were used. Beef skin was pretreated with pineapple peel extract for 12, 24, 30 and 40 hours before the gelatin extraction. The gelatin produced was subjected to Fourier Transform Infrared (FTIR) spectroscopy and amino acid analysis which were used to characterize it, and then used in meatball products. The meatballs were kept for 14 and 21 days at 10°C and then microbiological tests were conducted to assess Total Plate Count (TPC), Gram staining and biochemical tests. The FTIR analysis showed amide characteristic functional groups that are associated with the formation of gelatin, and the amino acid profiling also showed that glycine and proline are the main components. Bacterial count was higher with the longer storage time for all pretreatment groups as revealed by the TPC results. The 24-hour pretreatment group had the lowest count of bacteria after 14 days (4.4 × 10⁴) and the lowest count after 21 days (100 × 10⁵) was recorded in the 30-hour pretreatment group. Microbiological examination showed Gram-negative bacteria (Neisseria sp. and Escherichia coli) and Gram-positive bacteria (Staphylococcus aureus). The results showed that meatballs with pineapple peel extract-pretreated beef skin gelatin were still detectable microbial contamination during a long storage period. Further controlled investigations are needed to establish its antimicrobial effectiveness.