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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Economics and Business Journal FUNDS: Jurnal Ilmiah Akutansi, Keuangan, dan Bisnis The International Journal of Remote Sensing and Earth Sciences (IJReSES)
Rastina
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Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Library & Information Science

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Sebaran Suhu Permukaan Laut Teluk Lampung berdasarkan Citra Landsat-8 dan Kaitannya terhadap Indian Ocean Dipole (IOD) Periode Tahun 2013 – 2021: Sea Surface Temperature Distribution in Lampung Bay Based on Landsat-8 Images and its Relation to the Indian Ocean Dipole (IOD) on the Period Year 2013-2021 Nurjaya, I Wayan; Naulita, Yuli; Rastina; Okgareta, Dema
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 15 No. 3 (2023): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v15i3.48441

Abstract

Suhu permukaan laut merupakan parameter oseanografi yang penting di perairan lautan karena perubahan suhu air laut dapat mengubah ekosistem perairan. Perairan Teluk Lampung yang berasal dari Samudera Hindia dan Laut Jawa yang melewati Selat Sunda akan dipengaruhi oleh Indian Ocean Dipole (IOD). Penelitian ini bertujuan untuk menganalisis pola sebaran Suhu Permukaan Laut (SPL) antar-tahun secara spasial dan temporal dalam kurun waktu 9 tahun terakhir (2013-2021) serta menganalisis pengaruh fenomena IOD terhadap anomali SPL di Teluk Lampung. Metode yang digunakan adalah metode uji regresi, metode deskriptif dan statistik korelatif. Hasil menunjukkan bahwa nilai SST dari ekstraksi citra Landsat-8 dapat mewakili kondisi SPL in situ dengan uji regresi R2=0,6872. Fenomena IOD memengaruhi pola sebaran SPL perairan Teluk Lampung terlihat pada fase IOD positif (2015, 2018 dan 2019) atau fase IOD negatif (2013 dan 2016) menunjukkan adanya anomali Sea Surface Temperature (SST) perairan Teluk Lampung. Korelasi antara IOD dan SPL di Teluk Lampung memiliki dua hasil yaitu pada perairan terbuka (TL3, TL4, dan TL5) berkorelasi sedang (r>0,7) dan korelasi lemah (r<0,2) pada titik pengamatan TL1 dan TL6 yang merupakan titik dekat dengan daratan.
Enhancing MSME Competitiveness Through Financial Literacy and Digital Transformation in Indonesia Idrus, Muhammad Ishlah; Rastina
Economics and Business Journal (ECBIS) Vol. 2 No. 6 (2024): September
Publisher : PT. Maju Malaqbi Makkarana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47353/ecbis.v2i6.183

Abstract

Micro, Small, and Medium Enterprises (MSMEs) are a cornerstone of Indonesia's economy, contributing 60.5% to the national GDP and employing 97% of the workforce. However, MSMEs face challenges such as low financial literacy and limited adoption of digital technologies, which hinder their competitiveness in the global market. This study explores the synergistic role of financial literacy and digital transformation in enhancing MSME performance and competitiveness. Using a qualitative approach, data were collected through in-depth interviews, focus group discussions, and policy document analysis. The findings reveal that the average financial literacy level among MSME actors in Indonesia is only 38%, leading to poor financial management and limited access to formal financing. On the other hand, only 16% of MSMEs have integrated digital technologies into their operations, with those who did reporting significant improvements in efficiency and revenue. The integration of financial literacy with digital tools was found to have a multiplier effect, enabling better resource management, improved decision-making, and enhanced market competitiveness. This study highlights the importance of targeted policies to combine financial literacy training with digital technology adoption. By addressing challenges such as infrastructure limitations and resistance to change, stakeholders can foster inclusive economic growth and empower MSMEs to thrive in the digital economy.
Estimasi Kesuburan Perairan Teluk Lampung berdasarkan Vertically Generalized Production Model (VGPM): Estimation of Lampung Bay Waters Fertility Based on Vertically Generalized Production Model (VGPM) Hartanto, Mochamad Tri; Febrianto, Muhammad Riza Hanief; Susanti, Santi; Prartono, Tri; Rastina; Martinez, Stepahnie J.; Zaki, Nurul Hidayah Mat; Effendi, Irzal; Lestari, Dea Fauzia
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 16 No. 3 (2024): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v16i3.60125

Abstract

Lampung Bay is an important water crossing in South Sumatra that is greatly influence by anthropogenic activities and oceanographic characteristics. This study characterized and estimated the spatial and temporal Primary Productivity (PP) in the three sections of the bay: head, middle, and mouth. The PP was modeled by using Sea Surface Temperature (SST), chlorophyll-a, Primary Productivity, and Photosynthetically Active Radiation (PAR) collected from remote sensing data and field measurements. Primary productivity was modeled with a Vertically Generalized Production Model (VGPM), and data validation was done using the Root Mean Square Error method. The distribution of PAR in Lampung Bay ranged from 35–52.50 E/m2/day. The distribution of SST ranged from 28.5–31.50°C. The highest distribution of chlorophyll-a was at the hHead of the bay with a range of 0.30-12 mg/m3. Correlation analysis shows that chlorophyll-a had the highest influence on PP (R2=0.99). While the middle and outer areas of the bay have a low average with values of 122.65 and 101.84 gC/m2/year. Our models show that there is high primary production at the Head of the bay, reaching eutrophic and mesotrophic levels. The middle and outer areas of the bay show productivity levels corresponding to mesotrophic and oligotrophic levels.
PENERAPAN AKUNTANSI PERTANGGUNGJAWABAN SEBAGAI ALAT PENILAIAN KINERJA MANAJEMEN KURIR DAN LOGISTIK Rastina
Funds: Jurnal Ilmiah Akuntansi, Keuangan, dan Bisnis Vol 2 No 2 (2024): FUNDS
Publisher : Program Studi Akuntansi Lembaga Keuangan Syariah, FEBI, IAIN Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35905/funds.v3i1.10956

Abstract

The Parepare Branch Office of PT. Pos Indonesia has achievement targets that need to be met. However, in practice, it frequently falls short of these established targets.. By implementing responsibility accounting in the company, the management performance will be better. Meanwhile, good management performance will make it easier for companies to implement responsibility accounting so that company goals can be achieved. This research aims to find out how 1) Procedures for implementing operational activities at PT. Pos Indonesia (Persero) Parepare Branch Office, 2) implementation of responsibility accounting based on responsibility accounting requirements at PT. Pos Indonesia (Persero) Parepare Branch Office, 3) the role of responsibility accounting in assessing management performance at PT. Pos Indonesia (Persero) Parepare Branch Office. This research method uses a qualitative case study approach with a type of field research, and the data collection methods in this research are observation, interviews and documentation. The data analysis techniques include data collection, data reduction and data presentation. The research results show that: 1) Procedures for implementing operational activities at PT. Pos Indonesia (Persero) Parepare Branch Office corporate services include offers and Cooperation Agreements with corporate partners, receipt of Goods/Documents, sorting and packing processes, up to delivery to the Destination, followed by tracking and Monitoring, and finally the issuance of Billing Letters/Payment Invoices. 2) PT. Pos Indonesia (Persero) Parepare Branch Office has implemented responsibility accounting in accordance with the conditions for its implementation, namely there is an organizational structure in the company, preparation of a budget, separation of controlled and uncontrolled costs, classification of account codes, and there is accountability reporting. 3) By using responsibility accounting as a performance assessment tool, the accountability of managers and employees becomes clearer, and can increase their motivation to work better because their performance will be evaluated and rewarded fairly.
Karakteristik Pola Arus di Perairan Teluk Jakarta Pada Musim Barat dan Timur: Characteristichs of Current Pattern in Jakarta Bay in The West and East Monsoons Nurjaya, I Wayan; Rastina; Susanti, Santi; Nugraha, Teguh
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 17 No. 1 (2025): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v17i1.41406

Abstract

Jakarta Bay is a coastal area influenced by both natural factors (wind, currents, waves) and human activities (residential areas, coastal development, industry, and resource exploitation). The monsoon phenomenon in the Java Sea affects hydrodynamic patterns, especially current dynamics in Jakarta Bay. This study analyzes changes in current patterns during two distinct monsoon seasons (west and east) in 2021 using a hydrodynamic modeling approach. The model was developed using OpenFlows software with input data including bathymetry, tidal, wind, and wave conditions. Model validation was conducted using tidal and current measurements from field observations in March and August 2021. The results show seasonal variations in current direction and velocity, both in tidal phases and non-tidal (residual) currents. The current patterns aligned with seasonal wind directions, indicating a strong monsoonal influence. Model validation using Root Mean Square Error (RMSE) and Taylor diagram analysis demonstrated good agreement between modeled and observed data, confirming the model's reliability. These hydrodynamic modeling results can serve as a foundation for further studies, such as simulations of pollutant, sediment, and debris dispersion in Jakarta Bay.
HYDRODYNAMICS MODELING IN KENDARI BAY, SOUTHEAST SULAWESI, INDONESIA Imalpen Imalpen; Tri Prartono; Rastina; Alan Frendy Koropitan; Amir Yarkhasy Yuliardi
International Journal of Remote Sensing and Earth Sciences Vol. 21 No. 1 (2024)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2024.v21.a3906

Abstract

Kendari Bay is coastal water in the center of the capital city of Southeast Sulawesi province. It is shaped like a pocket with a narrow mouth and there is an estuary of a large river, namely the Wanggu river, which makes the dynamics of its waters very interesting to study. The focus of the study is the hydrodynamic factors in the Kendari Bay and Wanggu River areas. This study aims to examine the hydrodynamic conditions of Kendari Bay, mainly due to the existence of reclamation and the influence of the Wanggu River which has not been studied previously. This research method uses a two-dimensional model based on bathymetric data, tides, and the flow of the Wanggu River with a simulation time of 15 days (1 March to 15 March 2020). The modeling results were then verified with PUSHIDROSAL tidal elevation data showing an RMSE value of 0.07 indicating that the model was well constructed. The mixed tidal type with a tendency to double daily is the tidal type of Kendari Bay waters based on the Formzahl number value of 0.51. The current pattern generally moves in and out from east to west and vice versa with a varying elevation range following spring conditions of 1.75 m. The maximum tidal speed is 0.1784 m/s and the minimum value is 0.0057 m/s which is shown in the sample results of the model when the hing to low tide, and low to high tide. The results of the hydrodynamic modeling show that the current velocity increases when passing through a narrow path, namely the bay estuary and river estuary. The existence of the reclamation area affects the changes in the velocity of the current which is significantly larger and the direction of the current that undergoes a deflection follows the shape of the reclamation area. The current direction is to the southeast and then turns towards the northeast when low to high tide and eastward then turns towards the northeast when the high to low tide spring conditions compared to research before the reclamation
Co-Authors Alan Frendy Koropitan Amir Yarkhasy Yuliardi Dea Fauzia Lestari, Dea Fauzia Febrianto, Muhammad Riza Hanief Hartanto, Mochamad Tri I Wayan Nurjaya Idrus, Muhammad Ishlah Imalpen Imalpen Irzal Effendi Martinez, Stepahnie J. Nugraha, Teguh Okgareta, Dema Santi Susanti, Santi Tri Prartono Yuli Naulita Zaki, Nurul Hidayah Mat