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All Journal Bulletin of Scientific Contribution : Geology Jurnal Pengajaran MIPA Jurnal Pengajaran Matematika dan Ilmu Pengetahuan Alam Phi : Jurnal Pendidikan Fisika dan Terapan Global Medical and Health Communication Jurnal Penelitian Pendidikan IPA (JPPIPA)
Kartika Hajar Kirana, Kartika Hajar
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Dentistry Earth & Planetary Sciences Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Other

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Magnetic and Morphological Characterization of Magnetic Minerals from Sarimukti Landfill Manurung, Dwi Putri K; Fitriani, Dini; Agustine, Eleonora; Kirana, Kartika Hajar; Tama, Petrus Ardi
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11229

Abstract

Sarimukti landfill serves as a waste disposal site. Leachate generated from waste accumulation is discharged through pipelines into multiple retention ponds. This study aims to assess contamination levels in leachate deposits by analyzing the magnetic properties and morphology of magnetic minerals collected from four retention ponds, along with measurements of pH, EC, and TDS in the pond water. Magnetic susceptibility values range from 37.4 – 409.5 (×10⁻⁸) m³/kg, indicating ferrimagnetic mineral dominance. The  values range from 0.81% - 5.96%, where  >2% is often associated to pollutant-contaminated soils. A negative correlation between  and  suggests a minor contribution of superparamagnetic grains from pedogenesis. Scanning Electron Microscopy - Energy Dispersive Spectroscopy (SEM-EDS) analysis identifies spherule and hedral magnetic mineral shapes, with O and Fe as dominant elements and minor Ti, indicating magnetite and titanomagnetite presence. Other elements, including C, Mg, Al, Si, K, Ca, and Mn, likely originate from anthropogenic sources.
Early Detection of the Heavy Metals Pollution Effect on Citarum River Using Zebrafish Muscle Mitochondria Biomarkers Gene Expression Oktorina, Lenny; Goenawan, Hanna; Sylviana, Nova; Kirana, Kartika Hajar; Feriandi, Yudi; Lesmana, Ronny
Global Medical & Health Communication (GMHC) Vol 13, No 1 (2025)
Publisher : Universitas Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/gmhc.v13i1.14110

Abstract

Citarum is the longest river in West Java and one of the most polluted rivers in Indonesia and the world. Heavy metals from agriculture, industry, and household waste pollute the Citarum river. Heavy metals enter humans and animals by consuming contaminated food and beverages. Several studies have identified mitochondria as a primary target for heavy metal poisoning, resulting in impaired mitochondrial energy production, induction of oxidative stress, apoptosis, and mitophagy. This study aims to investigate the impact of heavy metals from the upstream and downstream areas of the Citarum river on mitochondrial gene expression of cox4i1, sod2, baxa, mfn1b, and ppargc1a in the skeletal muscle of zebrafish (Danio rerio) using in vivo models for biological monitoring of early detection of environmental heavy metal pollution. This experimental study was conducted from December 2019 to March 2020. The study involved four treatment groups and one control group of zebrafish, which were exposed to river water and sediments collected from two sites in the Citarum river area in December 2019. The biomarker levels were analyzed using multivariate analysis. Although all heavy metal levels except mercury were below the WHO threshold in all samples, this study's results showed that the RT-PCR results indicated that the levels of cox4i1, baxa, and ppargc1a in all samples were generally higher than those in the control. There were significant differences (p<0.05) using multivariate analysis in sod2 in Cibeureum water compared to Cibeureum sediment and ppgarc1a compared to control and Balekambang sediment. In conclusion, heavy metals from the upstream and downstream areas of the Citarum river had an impact on mitochondrial gene expression of cox4i1, sod2, baxa, mfn1b, and ppargc1a in the skeletal muscle of zebrafish. Biomarkers pparc1gc and sod2 could be further studied to identify the most valid and reliable parameters for biological monitoring, which may aid in the early detection of environmental damage to humans and animals.
Bathymetry Mapping and Simulation of Water Level in Cirata Reservoir Using Dual Beam Sonar Wijayanti, Risma Dwi Puteri; Aurellia, Najla Natasya; Sobari, Khoirotul Latifah; Kirana, Kartika Hajar
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.10167

Abstract

The Cirata Reservoir, an important water reservoir in West Java, plays a key role in hydropower generation, irrigation, and flood control. However, increasing sedimentation poses a significant threat to the reservoir’s functionality. This study maps the bottom topography and evaluates flood risks from sedimentation through bathymetric mapping and water level rise simulations. Data was collected from 22 sampling points using Deeper Sonar Pro+, providing precise depth measurements. Depths ranged from 2.1 m to 45.9 m, with an average of 22.4 m and a standard deviation of 13.46 m. The deepest areas are located in the center and near the Citarum River, while shallower areas are found at the estuaries of the Cibalagung and Cisokan Rivers due to sediment deposition. Simulations of water level rise using bathymetric and NASADEM data showed that a rise of up to 15 m would inundate the western, southern, and southwestern regions of the reservoir. Although the total volume of the reservoir is not determined, these findings underscore the need for effective sediment management to sustain the reservoir’s capacity and ecological functions. Further studies are required to estimate the reservoir’s volume and model long-term sedimentation risks to support the Cirata Reservoir's sustainability.
Karakteristik Atenuasi Seismik di Pulau Sumba Berdasarkan Analisis Gelombang Coda Ariyanti, Ayu Puput; Anggono, Titi; Prasetio, Aditya Dwi; Kirana, Kartika Hajar
Jurnal Penelitian Pendidikan IPA Vol 11 No 4 (2025): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i4.10870

Abstract

Coda wave data from four stations are to understand seismic attenuation on Sumba Island. Specifically, we estimate the quality factor at 1 Hz (Q₀) and its frequency dependence (η) across multiple window lengths (20–120 s) and frequency bands (1–7 Hz) using waveform data from 394 local earthquakes. The aim is to evaluate how these parameters reflect crustal heterogeneity and tectonic activity. Results show that Q₀ increases with window length, indicating that coda waves progressively sample deeper and more homogeneous layers, while high η values at shorter windows suggest significant near-surface heterogeneity. These findings highlight a depth-dependent variation in seismic attenuation and structural complexity. The study reveals spatial variability, with MELO station showing anomalously high Q₀ values, likely due to localized site conditions or deeper structural influences. Sumba’s location within the tectonically active Sunda-Banda arc transition zone further supports these observations. The combination of low Q₀ and high η values confirms high tectonic activity, and the use of coda wave attenuation analysis offers a reliable, parameter-based framework for assessing seismic hazard potential in regions with complex geodynamics. This work fills a research gap by providing empirical data and interpretation for a previously underexplored area in eastern Indonesia.
Physicochemical Characterization of Soils in Different Land Uses: A Case Study in Jatiroke Village, Sumedang, West Java Khanri, Nashifa Karisma; Asri, Nadia Putri Nur; Hendra, Hazel Abyudaya; Susantya, Sindhy; Susetyo, Dimastian Hari; Kirana, Kartika Hajar; Fitriani, Dini; Agustine, Eleonora
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.12863

Abstract

This study aimed to analyze the physicochemical characteristics of soils across different land uses in Jatiroke Village, West Java. Twenty-four surface soil samples were collected from rice fields, plantations, residential areas, and a temporary waste disposal site (TPS) using a stratified random sampling design. Parameters measured included soil color, texture, temperature, pH, electrical conductivity (EC), and total dissolved solids (TDS) through field and laboratory analyses. Principal Component Analysis (PCA) was applied to evaluate parameter relationships and identify dominant drivers of variability. Results showed that rice fields exhibited the highest salinity, primarily linked to the application of nitrogen- and potassium-based fertilizers, while TPS soils were affected by leachate containing organic and inorganic contaminants. Residential areas maintained near-neutral pH and low salinity, and plantations displayed intermediate variability. Descriptive traits such as color and texture varied across land uses but did not strongly differentiate soil conditions. PCA confirmed EC and TDS as the dominant differentiating factors, with pH and temperature contributing secondary variation. These findings demonstrate that fertilizer use and waste leachate are the main causes of elevated soil salinity, emphasizing the importance of monitoring EC and TDS for sustainable land management.
Co-Authors Aditya Dwi Prasetio, Aditya Dwi Aji, Bayu Gusti Pangestu Alfitrah, Siti Percika Amalia, Shita Ayu Ariyanti, Ayu Puput Asep Harja, Asep Asri, Nadia Putri Nur Aurellia, Najla Natasya AZIZAH, DARIN NUR Azzam, Muhammad Zharfan Budianto, Muhammad Abdillah Carrisa, Refi Cecep Kusmana Dini Fitriani, Dini Eleonora Agustine Fathurrohman, Fahmy Fitri Nurul Sholihat, Fitri Nurul Fitriansyah, Rd Agung Hanifah, Shofie Dzakia Hanna Goenawan Hendra, Hazel Abyudaya Hendrayani, Riska Hutabalian, May Angelia Irwan Ary Dharmawan Juniarti, Nita Khanri, Nashifa Karisma Kusnahadi Susanto Manurung, Dwi Putri K Mentari, Vanessa Zian Mia Uswatun Hasanah Muhamad Gina Nugraha Muhammad Gina Nugraha, Muhammad Gina Mulyadi, Yudi MULYANA, ACHMAD ARIF Nawawi, Muhamad Rovie Nico Andrianto, Nico Nova Sylviana Novala, Gesti Cita Nugraha, Andhika Nuzulira Janeusse Fratiwi Oktorina, Lenny Pranatikta, Krishna Agra Rahman, Jafar Shidqur Rahmaputri, Maghfira Dwivani Ramadan, Ananda Zikri Ramadhan, Fadhel Rizki, Muhammad Ilham Rizkita, Nabila Risty Rohman, Muhammad Alkuansinta Ronny Lesmana Santy Awalliyah, Santy Septiani, Fadia Tri Shafaria, Mileani Sihombing, Feronika Roulitua Sobari, Khoirotul Latifah Susantya, Sindhy Susetyo, Dimastian Hari Susilawati, Anggie Syarafina, Zhafirah Nurul Tama, Petrus Ardi TATI NURHAYATI Titi Anggono Wijayanti, Risma Dwi Puteri Yudi Feriandi Zaenudinna, Rayna Aulia