The Relationship Between Reef Fish Biodiversity and Coral Reef Health in Jepara Regency, Central Java, Indonesia
(Suryono Suryono, Wijayanti Diah Permata, Nur Taufiq Samsudin PJ, Pratikto Ibnu, Nuryadi Handung)
DOI : 10.15294/biosaintifika.v17i2.22174
- Volume: 17,
Issue: 2,
Sitasi : 0 20-Aug-2025
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| Last.10-Jul-2025
Abstrak:
Coral reefs are vital habitats for numerous fish species, providing food, shelter, and breeding grounds. In Jepara Regency, Central Java, Indonesia, these ecosystems are threatened by human activities and natural disturbances. This study aimed to assess the biodiversity of reef fish in relation to coral health degradation. Researchers used the Line Intercept Transect (LIT) and Underwater Visual Census (UVC) methods to evaluate fish abundance and coral coverage across three locations with six sampling stations. 936 reef fish individuals, representing 35 species and 14 families, were recorded, with the Pomacentridae family being the most prevalent. The highest coral coverage, categorized as fair, was found at Location II (Blebak Beach) at Stations 3 and 4, with coverage of 27.93% and 25.61%, respectively. This coral coverage was positively correlated with reef fish abundance, with counts of 238 and 246 individuals (average ± SD: 242 ± 5.65). The biodiversity index indicated a dominance index (D) ranging from 0.05 to 0.14 (in the fair category), a high evenness index (E) between 0.75 and 1, and a low dominance index (D) between 0.05 and 0.14. A significant correlation was found between coral coverage and reef fish numbers (P < 0.05, R² = 0.8702), with a linear regression equation of y=6.26+67.71. The findings suggest that the health of coral reef ecosystems significantly affects reef fish populations. Hereafter, the healthiness of this ecosystem will support the scientific core development of Marine Sciences as well as fulfill society's need (economically).
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2025 |
Identification of Risk Factors for Chronic Kidney Disease Using Binary Logistic Regression
(Eva Kosasih, Ni Kadek Wulanda Asmara Santhi, Ni Wayan Atik Febriyanti, Eka Valencia Br Barus, Made Susilawati)
DOI : 10.62951/ijamc.v2i3.222
- Volume: 2,
Issue: 3,
Sitasi : 0 14-Jul-2025
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| Last.13-Aug-2025
Abstrak:
Chronic Kidney Disease (CKD) is a major global health issue that can lead to serious complications and long-term medical care. This study aims to identify key clinical factors associated with CKD status using binary logistic regression analysis. The dataset, obtained from Kaggle, contains 400 patient records with various clinical and demographic attributes. The dependent variable is CKD status (positive or negative), while the independent variables include age, blood pressure, hemoglobin level, urine albumin level, and serum creatinine. Initial analysis involved descriptive statistics and multicollinearity checks, followed by model estimation and evaluation using likelihood ratio and Wald tests. The final model identified four significant predictors: blood pressure, hemoglobin, urine albumin, and serum creatinine. The model achieved a high classification accuracy of 95.50% and an Area Under the ROC Curve (AUC) of 98.78%, indicating excellent predictive performance. These results highlight the importance of these clinical indicators in early CKD detection and support their use in risk assessment models for kidney disease screening
Keywords: Chronic Kidney Disease, Binary Logistic Regression, Likelihood Ratio Test, Wald Test, Classification Accuracy
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2025 |
Supervision of One-Tier Board System in Indonesia
(Muhamad Sidik, Suherman Suherman, Atik Winanti)
DOI : 10.62951/ijls.v2i3.692
- Volume: 2,
Issue: 3,
Sitasi : 0 08-Jul-2025
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| Last.13-Aug-2025
Abstrak:
This study conducts a comprehensive comparative analysis of one-tier board supervision mechanisms across Indonesia, Malaysia, and Singapore, examining the effectiveness of corporate governance frameworks in emerging market contexts. The research employs a doctrinal normative legal methodology, analyzing statutory instruments including Indonesia's Job Creation Law No. 6 of 2023, Malaysia's Companies Act 2016, and Singapore's Companies Act 1967. The introduction of Indonesia's Individual Limited Liability Company (PT Perseorangan) represents a significant paradigmatic shift from traditional two-tier governance structures, necessitating examination of supervisory adequacy within simplified corporate frameworks. The comparative analysis reveals fundamental disparities in regulatory sophistication, with Malaysia and Singapore demonstrating comprehensive fiduciary duty frameworks, mandatory company secretary requirements, and graduated enforcement mechanisms. In contrast, Indonesia's PT Perseorangan exhibits critical institutional deficiencies, including normative conflicts between statutory provisions, limited directorial responsibility regulation, and inadequate enforcement responsiveness. The findings demonstrate that effective one-tier governance systems require sophisticated institutional support mechanisms extending beyond regulatory simplification. Malaysia's stringent Section 213 fiduciary duty provisions and Singapore's technology-enabled enforcement approach provide robust oversight despite absent traditional supervisory boards. The research establishes that successful governance transitions require institutional preparation rather than mere regulatory amendment, with Indonesia's framework requiring substantial reform incorporating company secretary mandates, comprehensive fiduciary duty provisions, and graduated enforcement systems. These findings contribute to institutional theory literature by demonstrating context-dependent governance effectiveness and provide practical recommendations for enhancing corporate accountability in simplified governance structures within emerging market jurisdictions.
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2025 |
Pengaruh Digitalisasi Pembayaran Pajak Terhadap Kepatuhan Pajak Usaha Mikro, Kecil, dan Menengah (Studi Kasus pada UMKM di Surakarta)
(Amalina Fatika Putri, Fadjar Harimurti, Aris Eddy Sarwono)
DOI : 10.51903/jupea.v5i1.4613
- Volume: 5,
Issue: 1,
Sitasi : 0 30-Jun-2025
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| Last.23-Jul-2025
Abstrak:
This research investigates the impact of digital tax payment methods on the tax compliance of Micro, Small, and Medium Enterprises (MSMEs) located in Surakarta City. It hypothesizes that a digitalized tax system will enhance efficiency and convenience for taxpayers, thereby fostering greater compliance. Employing a quantitative methodology, the study utilizes a simple linear regression approach for its analysis. The participant pool comprises all active MSME operators in Surakarta City who possess a Taxpayer Identification Number (NPWP). A total of 90 respondents were carefully selected to form the sample. Data collection was performed via questionnaires designed to assess both tax payment digitalization indicators and MSME tax compliance levels. Initial findings reveal that the majority of participants are productive-aged women, engaged primarily in the culinary, retail, fashion, and creative services industries, with most businesses having operated for over three years. These preliminary observations establish a foundational understanding of the characteristics of Surakarta's MSMEs as the subject of this study. Subsequent analysis will focus on rigorously testing the hypothesized causal link between digitalization and tax compliance.
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2025 |
Pengaruh Promosi Digital, Kualitas Layanan, dan Gaya Hidup terhadap Keputusan Konsumen dalam Penggunaan Jasa Omahbiru Wedding Organizer
(Fadhila Fatika Hadi, Faisol Faisol, Itot Bian Raharjo)
DOI : 10.61132/jbep.v2i2.1302
- Volume: 2,
Issue: 2,
Sitasi : 0 30-Jun-2025
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| Last.08-Aug-2025
Abstrak:
This study aims to examine the influence of digital promotion, service quality, and lifestyle on consumer decision-making in using the services of Omahbiru Wedding Organizer, located in Kediri. The background of this research stems from the increasing competition among wedding organizer businesses in the digital era, which requires service providers to adapt their marketing strategies to the preferences and behavior of modern consumers. A quantitative research approach was applied, with data collected through questionnaires distributed to 108 respondents who had previously used Omahbiru’s services. Data were analyzed using Structural Equation Modeling (SEM) with the Partial Least Squares (PLS) method, assisted by SmartPLS 3.0 software. The study examined three independent variables digital promotion, service quality, and lifestyle and one dependent variable, namely consumer decision. The findings reveal that all three independent variables have a significant simultaneous effect on consumer decisions. Individually, lifestyle and service quality have a stronger influence compared to digital promotion, which shows a moderate effect. The R-Square value of 0.488 indicates that these variables explain 48.8% of the variance in consumer decision-making. These results highlight the importance of aligning digital promotional strategies, service excellence, and lifestyle compatibility to attract and retain customers in the wedding organizer industry.
Keywords: digital promotion, service quality, lifestyle, consumer decision, wedding organizer
Penelitian ini bertujuan untuk mengkaji pengaruh promosi digital, kualitas layanan, dan gaya hidup terhadap keputusan konsumen dalam menggunakan jasa Omahbiru Wedding Organizer yang berlokasi di Kediri. Latar belakang penelitian ini didasarkan pada meningkatnya persaingan antar wedding organizer di era digital, yang menuntut pelaku usaha untuk menyesuaikan strategi pemasarannya dengan preferensi dan perilaku konsumen modern. Pendekatan penelitian yang digunakan adalah kuantitatif, dengan pengumpulan data melalui kuesioner kepada 108 responden yang sebelumnya telah menggunakan jasa Omahbiru. Analisis data dilakukan dengan metode Structural Equation Modeling (SEM) berbasis Partial Least Squares (PLS), menggunakan bantuan software SmartPLS versi 3.0. Penelitian ini menguji tiga variabel independen—promosi digital, kualitas layanan, dan gaya hidup—serta satu variabel dependen yaitu keputusan konsumen. Hasil penelitian menunjukkan bahwa ketiga variabel independen berpengaruh signifikan secara simultan terhadap keputusan konsumen. Secara parsial, variabel gaya hidup dan kualitas layanan memberikan pengaruh yang lebih kuat dibandingkan promosi digital, yang memberikan pengaruh sedang. Nilai R-Square sebesar 0,488 menunjukkan bahwa ketiga variabel mampu menjelaskan 48,8% variasi dalam pengambilan keputusan konsumen. Temuan ini menegaskan pentingnya kesesuaian strategi promosi digital, pelayanan yang unggul, dan penyesuaian gaya hidup dalam menarik dan mempertahankan pelanggan di industri wedding organizer.
Kata Kunci: promosi digital, kualitas layanan, gaya hidup, keputusan konsumen, wedding organizer
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2025 |
Gangguan Skizofrenia pada Tokoh Utama dalam Novel Skizofrenia Karya Disadisso : Kajian Psikologi Sastra Lev Vygotsky
(Sheila Rohmatika Fitria, Ahmad Ilzamul Hikam)
DOI : 10.61132/bima.v3i3.2238
- Volume: 3,
Issue: 3,
Sitasi : 0 27-Jun-2025
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| Last.06-Aug-2025
Abstrak:
Mental disorders, particularly schizophrenia, are psychological phenomena that are widely addressed in literary works because they can reflect the inner conflicts of individuals as well as the social problems surrounding them. This study aims to uncover how schizophrenia is represented in the main character of the novel "Skizofrenia" by Disadisso using a psychological literary approach based on Lev Vygotsky's sociocultural theory. The method used is descriptive qualitative, with data collection techniques involving reading and noting the text of the novel. Data are analyzed through the grouping of schizophrenia symptoms, tracing causes, and examining the influence of social interactions on the character's development of the disorder. The results show that the main character, Fara, experiences various symptoms of schizophrenia such as hallucinations, delusions, social withdrawal, and thought disorders, which arise from psychosocial stress, childhood trauma, and a lack of social and family support. The conclusion of the study This research emphasizes that schizophrenia is not only a mental disorder from a purely medical perspective, but also a result of the failure of social and repressive cultural relationships, which is clarified through the literary psychology approach of Lev Vygotsky.
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2025 |
Potential for Budget Disharmonization in the Management of the Merah Putih Village Cooperative
(Adnan Hasanudin, Atik Winanti, Aurora Jilena Meliala)
DOI : 10.62951/ijls.v2i3.660
- Volume: 2,
Issue: 3,
Sitasi : 0 20-Jun-2025
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| Last.13-Aug-2025
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This research aims to determine whether the budget formulation of the Merah Putih Village Cooperative is in accordance with the norms and statutory regulations as stipulated in Law Number 25 of 1992 concerning Cooperatives, particularly in relation to Article 33 paragraph (4) of the 1945 Constitution, which emphasizes the principle of independence in the national economy. The results of this study focus on optimizing the establishment of the Merah Putih Village Cooperative to support the formation of national-scale cooperatives that function not only as savings and loan institutions driving the economy, but also address the challenges and risks that may arise from the establishment of the Merah Putih Cooperative. First, the issue of economic scale is crucial. Operations at the village level are often limited by available resources and market reach. Second, human resource capacity is a determining factor. The management of funds amounting to IDR 3–5 billion requires financial, business, operational, and marketing management skills that are not always present in every village. Experience with Village-Owned Enterprises (BUMDes) shows that one of their main challenges is finding local residents who are truly skilled managers. Third, elite capture or control by local elites can become a bottleneck. In villages with weak governance, influential figures may abuse their authority to control the cooperative for personal gain. Similar occurrences are often found in grant programs from Ministries/Agencies or the private sector, where key individuals dominate and exploit these resources for their own interests. Fourth, the risk of fraud.
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2025 |
Pengaruh Literasi Keuangan dan Perencanaan Keuangan Terhadap Tabungan Mahasiswa Akuntansi Semester II dan IV di Universitas Bina Sarana Informatika Kampus Kramat
(Riza Fahlapi, Lucky Ana Cesar, Nabila Syafitri, Haryo Aditya, Yolanda Fatika)
DOI : 10.62504/jimr1284
- Volume: 3,
Issue: 6,
Sitasi : 0 14-Jun-2025
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| Last.31-Jul-2025
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Penelitian ini bertujuan untuk mengkaji pengaruh literasi keuangan dan perencanaan keuangan terhadap kebiasaan menabung mahasiswa Akuntansi semester II dan IV di Universitas Bina Sarana Informatika Kampus Kramat, baik secara parsial maupun simultan. Dengan menggunakan pendekatan kuantitatif dan metode survei terhadap 150 responden yang dipilih melalui teknik purposive sampling, data dikumpulkan melalui kuesioner dan dianalisis menggunakan uji validitas, reliabilitas, asumsi klasik, regresi linear, dan uji hipotesis. Hasil penelitian menunjukkan bahwa literasi keuangan berpengaruh positif dan signifikan terhadap tabungan mahasiswa dengan t-hitung 6,640 > t-tabel 1,976 dan kontribusi 57%, sedangkan perencanaan keuangan juga menunjukkan pengaruh positif dan signifikan dengan t-hitung 4,957 > t-tabel 1,976 dan kontribusi 53%. Secara simultan, kedua variabel tersebut berpengaruh secara positif dan signifikan terhadap tabungan mahasiswa dengan nilai F-hitung 130,357 > F-tabel 3,060 dan nilai determinasi sebesar 63%, serta diperoleh persamaan regresi Y = 3,330 + 0,435X? + 0,251X?. Temuan ini menunjukkan bahwa semakin baik literasi dan perencanaan keuangan yang dimiliki mahasiswa, semakin besar pula kecenderungan mereka dalam membentuk perilaku menabung yang sehat dan terarah.
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2025 |
PENGARUH BRAND IMAGE DAN HARGA TERHADAP KEPUTUSAN PEMBELIAN MELALUI MINAT BELI SEBAGAI VARIABEL MEDIASI
(Fahmi Dina Maulani, Defa Mahkomah Putri, Fatika Fitri Nur Hidayah, Marjam Desma Rahadhini)
DOI : 10.55606/jurimea.v5i1.1146
- Volume: 5,
Issue: 1,
Sitasi : 0 09-Jun-2025
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| Last.13-Aug-2025
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This research report titled The Influence of Brand Image and Price on Purchase Decisions through Purchase Intention as a Mediating Variabel (Survey on McDonald’s Consumers in Surakarta). Aims to analyze the impact of brand image and price on consumers purchase McDonald’s products in Surakarta. The research untilized a quantitative descriptive method, collection data through questionnaires distributed to 40 respondents. The findings indicate that brand image does to not significantly influence purchasing decisions, whili price has a positive and signicant effect on purchase intention. Furthermore, purchase intention positively and significantly affects purchasing decisions. This research contributes to the understanding of consumer behavior in the fast-food industry, particulary in the context of McDonald’s.
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2025 |
Strategi Pemberdayaan Masyarakat melalui Program PHP2D dalam Pengembangan Komoditas Kopi di Desa Winduaji, Brebes (Studi Kasus Kebun Kopi Winduaji Tahun 2020)
(Rizaqi Ruhiyat, Chamid Sutikno, Ariesta Amanda, , Indah Ayu Permana Pribadi, Zaula Rizqi Atika)
DOI : 10.62383/kajian.v2i2.350
- Volume: 2,
Issue: 2,
Sitasi : 0 09-Jun-2025
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| Last.27-Jul-2025
Abstrak:
This research is a study in the field of Public Administration aimed at describing community empowerment management through the Holistic Village Development and Empowerment Program (PHP2D) in the development of Kebon Winduaji Coffee in Winduaji Village, Paguyangan District, Brebes Regency in 2020. The research method employed a descriptive qualitative approach with a case study design. The research targets were stakeholders involved in community empowerment activities through the PHP2D program. The selection of informants in this study used purposive sampling technique. Data sources for the research utilized both primary and secondary data. This research focused on aspects including available strengths and opportunities, while simultaneously minimizing weaknesses and threats faced in the development of Kebon Winduaji Coffee. Data analysis used an interactive model with descriptive design. The research findings indicate that successful community empowerment through local products requires a balance between two important elements: preserving local culture and traditions, and adapting to contemporary market demands. The long-term success of community empowerment programs depends not only on the availability of funding and support from various parties. More importantly, it is the ability to build a robust system that can withstand various external changes, while maintaining the distinctive characteristics and authenticity of local products as a sustainable competitive advantage.
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2025 |