Abstract:Student grade data is personal data that must be protected under Indonesian Law Number 27 of 2022 on Personal Data Protection, yet the rising number of data breaches in the education sector shows that such protection has…
not been optimally implemented. This study implements the 128-bit Advanced Encryption Standard (AES) algorithm combined with Huffman compression to protect the confidentiality and integrity of student grade files in Excel (.xlsx) format, and evaluates its effectiveness through functional, performance, and security testing. The system was developed as a Python desktop application with a CustomTkinter interface, in which the encryption process runs Huffman compression before AES-128, while integrity verification uses SHA-256 hashing. Testing was conducted on seven student grade files from MA Ma'ahid Kudus. The results show that all files were successfully encrypted and decrypted without failure or data alteration, with encryption times of 0.0142-0.0828 seconds and decryption times of 0.0046-0.1417 seconds. The SHA-256 hash values of the original and decrypted files were identical for all samples, yielding 100% recovery accuracy, while the file size increase from padding and header insertion ranged only from 1,092 to 1,101 bytes. The study concludes that the combination of AES-128 and Huffman compression is an effective and efficient solution for protecting student grade data in educational institutions.
Abstract:Steamed sponge cake (bolu kukus) is a widely consumed traditional snack in Indonesia; however, its reliance on refined wheat flour limits its micronutrient and dietary fiber density. Incorporating composite flours from indigenous…
ndigenous crops, such as tropical pumpkin (Cucurbita moschata) and green pea (Vigna radiata L.), offers a promising strategy for nutritional fortification and dietary diversification. This study aimed to evaluate the proximate composition, sensory acceptability, statistical differences, and production cost feasibility of steamed sponge cakes formulated with varying proportions of pumpkin and green pea flours as partial replacements for refined wheat flour. An experimental design was applied using three formulations: AF09 (Control: 100% wheat flour), BW91 (10% pumpkin flour, 20% green pea flour), and CB88 (15% pumpkin flour, 15% green pea flour). Proximate testing measured moisture, ash, protein, fat, crude fiber, and total carbohydrates (by difference). Sensory acceptance (color, aroma, taste, and texture) was evaluated by 50 semi-trained panelists using a hedonic scale. Data were analyzed non-parametrically using Kolmogorov-Smirnov, Kruskal-Wallis, and post-hoc Mann-Whitney tests. All formulations complied with the Indonesian National Standard (SNI 01-3840-1995) for moisture (31.69%–33.74%), total ash (0.66%–1.05%), crude protein (5.80%–6.65%), and crude fat (1.64%–2.82%). Formula CB88 achieved the highest crude fiber content (0.69%) and lower total energy density (269.88 kcal/100 g). Kruskal-Wallis testing indicated statistically significant differences (p<0.05) among formulations for color, taste, and texture, while aroma exhibited no significant variation (p=0.672). Formula CB88 emerged as the optimal treatment, receiving superior sensory acceptance ratings for color (90% liked) and crumb softness (88% liked) driven by natural β-carotene and pectin-moisture gelation. Production cost analysis demonstrated high economic feasibility for CB88 at IDR 3,374 per 55 g serving. Partial substitution with 15% pumpkin flour and 15% green pea flour (Formula CB88) yields a nutrient-dense, fiber-enriched, and cost-effective functional snack suitable for targeted school nutrition and dietary diversification programs.
Abstract:This study aims to examine the effect of profitability, liquidity, and leverage on tax aggressiveness in health sector companies listed on the Indonesia Stock Exchange (IDX) for the period 2022–2025. Tax aggressiveness is…
is measured using the GAAP Effective Tax Rate (GAAP ETR), while profitability is proxied by Return on Assets (ROA), liquidity by the Current Ratio (CR), and leverage by the Debt to Equity Ratio (DER). A quantitative research method with descriptive and verificative approaches is employed. The population consists of 38 health sector companies, from which 11 companies are selected as samples through purposive sampling, yielding 44 firm-year observations. Data analysis is performed using panel data regression with the Fixed Effect Model (FEM) estimated through EViews 12. The results show that: (1) profitability does not significantly affect tax aggressiveness (prob. = 0.1023 > 0.05); (2) liquidity does not significantly affect tax aggressiveness (prob. = 0.4822 > 0.05); (3) leverage significantly affects tax aggressiveness (prob. = 0.0424 < 0.05); and (4) profitability, liquidity, and leverage simultaneously affect tax aggressiveness (prob. F-statistic = 0.0006 < 0.05), with an Adjusted R-squared of 0.48 or 48%. These findings suggest that debt financing structure plays a critical role in corporate tax planning decisions within the Indonesian health sector.
Abstract:This study analyzes the dividend policy of PT Telkom Indonesia (Persero) Tbk (TLKM) during the 2020–2025 period using a quantitative descriptive approach and a longitudinal case study based on secondary data from audited…
ed financial reports. The variables analyzed include Dividend Per Share (DPS), Earnings Per Share (EPS), Dividend Payout Ratio (DPR), Dividend Yield, and Free Cash Flow (FCF), with trend analysis using the Compound Annual Growth Rate (CAGR). The results show that DPS grows 6.05% per year, higher than EPS of 1.87%, resulting in DPR increasing from 80.00% to 93.95% in 2024. Nevertheless, strong and stable operating cash flow ensures that dividends remain supported by FCF, so there is no indication of financial distress. However, the increasing FCF-to-dividend ratio indicates the company's increasingly limited reinvestment space. The decline in net profit of 20.48% in 2025 also increases the risk of dividend policy sustainability. Furthermore, the increase in dividend yield was more influenced by stock price declines than dividend growth. This finding suggests that SOE dividend stability reflects not only fundamental performance but also institutional pressure from the government as the controlling shareholder, supporting the relevance of Agency Theory and Catering Theory in explaining dividend policy of state-owned enterprises in emerging markets
Abstract:This study discusses the effectiveness of the Swallow Nest Tax in increasing Regional Original Revenue (PAD) in Luwu Regency. The research problem focuses on the low realization of tax revenue compared to the set target…
and the suboptimal contribution of the swallow nest tax to PAD. The objective of this study is to analyze the level of effectiveness of the swallow nest tax and the factors influencing it.
This research uses a descriptive qualitative approach with data collection techniques through interviews and documentation. Data analysis was conducted using an elasticity ratio approach and an interactive analysis model. The results show that the swallow nest tax has not been effective in increasing PAD, with an average elasticity value of -0.03% (inelastic) during the 2022–2024 period. The realization of tax revenue is still far below the established target. This condition is influenced by low taxpayer awareness, suboptimal business reporting, limited supervision, and unstable harvest yields. As a result, the tax effectiveness remains low and has not provided a significant contribution to PAD.
Abstract:This study aims to analyze and compare the financial performance of PT Indofood CBP Sukses Makmur Tbk (ICBP) and PT Mayora Indah Tbk (MYOR), two leading companies in the food and beverage subsector listed on the Indonesia…
a Stock Exchange. This research employs a quantitative approach with a descriptive comparative method through financial ratio analysis, including Earnings Per Share (EPS), Price Earnings Ratio (PER), Price to Book Value (PBV), Return on Equity (ROE), Debt to Equity Ratio (DER), and Dividend Yield (DY) for the 2019–2023 period. The study uses secondary data obtained from annual financial reports and the official website of the Indonesia Stock Exchange. The results indicate that PT Indofood CBP demonstrates more stable and efficient financial performance than PT Mayora Indah, particularly in profitability and capital efficiency ratios. Meanwhile, PT Mayora Indah shows promising growth potential but tends to experience fluctuations due to high operating costs and aggressive expansion strategies. The managerial implication emphasizes the importance of balancing operational efficiency and growth strategies to enhance corporate value and long-term investment attractiveness.
Abstract:Green management has become a crucial element in modern corporate strategies to achieve competitive advantage while supporting environmental sustainability. This study analyzes the implementation of five key segments of…
green management: greening of products, processes, workplaces, communities, and workforce. Case studies of global companies such as Samsung, Patagonia, and IKEA demonstrate that integrating green strategies not only reduces environmental impact but also enhances operational efficiency, innovation, and customer loyalty. The findings affirm that green management is a strategic investment that yields long-term benefits, particularly in attracting sustainability-focused investors. The study concludes by emphasizing the importance of synergy between the private sector, government, and society in achieving inclusive economic growth aligned with the Sustainable Development Goals
Abstract:Inflation is a fundamental measure of macroeconomic stability that negatively impacts the nation's economy and affects many other macroeconomic variables. Thus, in this study, the major objective was based on modeling and…
d forecasting inflation in Ethiopia and its components using a VAR model. The analysis was based on annual data from 1992 to 2021, encompassing 30 years. The results indicated that all five series were non-stationary at the level but stationary after their first differencing at a 5% level of significance. Johansen's cointegration tests were conducted. The results indicated the presence of at least one co-integration relationship between the variables. The Vector Error Correction Model (VECM) was fitted to model short run and long run relationships among inflation and other macro-econometric series such as GDP growth, government expenditure, money supply, and imports, and the result indicated that the coefficient of error correction term is negative (-0.279), which indicated that the fitted VECM model continues to move toward long run equilibrium and converges. Granger causality tests were employed to explore potential causal relationships. Impulse response analysis and variance decomposition were used to determine the short-run interactions among the variables. Finally, using the fitted model, out-of-sample forecasts were produced, yielding forecasted plots and values for the endogenous variables. According to the forecasted inflation rates for the next five years, prices are projected to decrease by approximately 18.0% in 2022, 6.8% in 2023, and then increase by approximately 8.3% in 2024. Subsequently, prices are expected to decrease by approximately 2% in 2025 and 5% in 2026 over the specified time periods.
Abstract:Digital transformation is a hot topic for research. Various technological developments encourage various organizations to carry out digital transformation to achieve organizational goals. This is experienced by SMEs in running…
unning their business. Various studies that have been conducted have yielded inconsistent results regarding the adoption of digital transformation for MSMEs. This article discusses the extent to which previous research has explored digital transformation carried out by MSMEs that can have an impact on financial performance. This article uses a systematic literature review and bibliometric analysis to explore previous research related to the digital transformation of MSMEs
Abstract:Perkembangan pesat teknologi Artificial Intelligence (AI) telah mengubah lanskap pendidikan tinggi secara signifikan, terutama dengan hadirnya tutor virtual berbasis AI yang mampu memberikan umpan balik cepat, tepat, dan…
personal. Analisis Real merupakan salah satu mata kuliah yang paling menantang dalam program pendidikan matematika karena sifat abstraknya sering menyebabkan rendahnya self-efficacy mahasiswa. Penelitian ini bertujuan menganalisis pengaruh pemanfaatan AI sebagai tutor virtual terhadap self-efficacy mahasiswa Pendidikan Matematika Universitas Asahan yang menempuh mata kuliah Analisis Real. Penelitian menggunakan pendekatan kuantitatif dengan desain quasi-experimental one-group pretest-posttest, melibatkan 15 mahasiswa yang dipilih melalui purposive sampling. Instrumen angket self-efficacy dikembangkan berdasarkan tiga dimensi Bandura (magnitude, strength, generality), divalidasi melalui expert judgment dengan Cronbach’s Alpha sebesar 0,84. Hasil analisis deskriptif menunjukkan peningkatan rata-rata skor self-efficacy dari 65,67 (pre-test, kategori sedang) menjadi 79,93 (post-test, kategori tinggi), dengan peningkatan sebesar 21,7%. Uji Wilcoxon Signed-Rank Test menghasilkan nilai Z = −3,408 dengan p-value = 0,001 (p < 0,05), yang mengkonfirmasi terdapat perbedaan signifikan self-efficacy mahasiswa sebelum dan sesudah intervensi enam minggu menggunakan AI tutor virtual.
The rapid development of Artificial Intelligence (AI) technology has significantly transformed higher education, particularly through AI-based virtual tutors capable of providing fast, precise, and personalized feedback. Real Analysis, one of the most challenging mathematics education courses, frequently causes low self-efficacy among students due to its abstract nature and demands for formal proof-writing. This study examines the effect of utilizing AI as a virtual tutor on self-efficacy of mathematics education students at Universitas Asahan. A quantitative quasi-experimental one-group pretest-posttest design was employed with 15 students selected via purposive sampling. The self-efficacy questionnaire was based on Bandura’s three dimensions: magnitude, strength, and generality, validated by expert judgment with Cronbach’s Alpha coefficient of 0.84. Descriptive analysis results showed an increase in mean self-efficacy scores from 65.67 (pre-test, moderate category) to 79.93 (post-test, high category), representing a 21.7% improvement. The Wilcoxon Signed-Rank Test yielded Z = −3.408 with p-value = 0.001 (p < 0.05), confirming a significant difference in student self-efficacy before and after the six-week AI virtual tutor intervention.