Abstract:This study developed and evaluated a standalone, non-intrusive radio frequency identification (RFID)-based elevator access control system for a four-story residential building. The system used an Arduino Uno, an MFRC522…
RFID reader, and relay interfaces to regulate access to Floors 2, 3, and 4. Authorized card identifiers and floor permissions were stored locally, enabling offline operation without an external database or network connection. The relays interfaced only with the elevator push-button circuits and did not modify the original controller, motor drive, door mechanism, or safety system. Performance was evaluated using 47 registered cards and three unregistered cards, with each card tested 50 times, producing 2,500 authentication trials. Under the tested conditions, all registered cards were correctly authenticated according to their assigned floor permissions, while all unregistered cards were rejected. The system achieved 100% authentication accuracy, 100% correct relay activation, and 100% unauthorized-card rejection. Stable card detection was obtained at distances of up to approximately 1 cm. The first-floor button remained independent of the RFID module to preserve minimum accessibility during module failure. The proposed system provides a practical and low-cost retrofit solution for floor-specific elevator access control in small residential buildings.
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:This study examines how leadership and work-life balance influence employee performance directly and indirectly through employee engagement at the Fisheries Service of Central Maluku Regency. A descriptive quantitative,…
causal-correlational design was applied to the entire population of 49 employees using total sampling. Data were analyzed through descriptive statistics, path analysis, and Sobel tests to estimate direct, indirect, and mediating effects. The findings show that leadership significantly affects employee engagement (beta = 0.582; p < 0.001), while work-life balance also has a significant, although smaller, effect on engagement (beta = 0.129; p = 0.005). Employee engagement strongly affects performance (beta = 0.942; p < 0.001). In contrast, the direct effects of leadership (beta = 0.034; p = 0.613) and work-life balance (beta = -0.008; p = 0.756) on performance are not significant. Sobel testing confirms that employee engagement mediates the effect of leadership on performance (p = 0.00015) and the effect of work-life balance on performance (p = 0.03). The model explains 92.4% of the variance in performance. The study's novelty lies in demonstrating, within a local public-sector context, that leadership and work-life balance improve performance primarily by strengthening employee engagement rather than through direct effects. These findings imply that public organizations should prioritize engagement-oriented leadership and work-life policies to achieve sustainable employee performance.
Abstract:The financial information presented in the financial statements serves to evaluate company performance, control costs, and plan future business strategies. In addition to internal parties, financial statements are also used…
sed by external parties such as creditors, investors, and government agencies. Financial statements in accordance with SAK ETAP can increase company transparency and accountability. This financial transparency and accountability will increase external parties' trust in the company. Therefore, an analysis of the preparation of financial statements at CV Saudagar Jaya Sukses is needed. This analysis aims to assess the conformity of the prepared financial statements with the provisions of SAK ETAP. This study uses a descriptive research type with a qualitative approach. The results of the study indicate that the preparation of financial statements at CV. Saudagar Jaya Sukses is still not fully in accordance with the provisions contained in SAK ETAP, so various improvements are needed to improve the quality of the resulting financial statements.
Abstract:This study aims to improve children's singing ability through the use of video-based learning in second-grade students at SDN 6 Kabila, Bone Bolango Regency. The research problem identified was the low singing ability of…
students due to the lack of engaging learning media. Video-based learning was employed to help students understand pitch, rhythm, and lyrics, thereby enhancing their confidence, interest, and singing skills in music education. This study adopted a Classroom Action Research (CAR) design following the Kemmis and McTaggart spiral model, conducted in two cycles (Cycle I with two meetings and Cycle II with one meeting). The subjects were 21 second-grade students (9 males and 12 females). Data collection techniques included observation, tests (performance assessments), interviews, and documentation. Data were analyzed descriptively to determine improvements in students' singing ability across four indicators: pitch accuracy, rhythmic accuracy, lyric mastery, and expression with self-confidence. The results showed that students' initial singing ability was low, with only 28% achieving the minimum mastery criterion (KKM). After implementing video-based learning, students' mastery increased to 43% in Cycle I Meeting I, 62% in Cycle I Meeting II, and 90% in Cycle II Meeting I. Teacher activity improved from 60% (adequate) to 96% (excellent), and student activity increased from 59% (adequate) to 96% (excellent). These findings demonstrate that video-based learning effectively improves children's singing ability, confidence, and active participation in music education at the elementary school level.
Abstract:This study aims to improve children's singing ability through the use of video-based learning in second-grade students at SDN 6 Kabila, Bone Bolango Regency. The research problem identified was the low singing ability of…
students due to the lack of engaging learning media. Video-based learning was employed to help students understand pitch, rhythm, and lyrics, thereby enhancing their confidence, interest, and singing skills in music education. This study adopted a Classroom Action Research (CAR) design following the Kemmis and McTaggart spiral model, conducted in two cycles (Cycle I with two meetings and Cycle II with one meeting). The subjects were 21 second-grade students (9 males and 12 females). Data collection techniques included observation, tests (performance assessments), interviews, and documentation. Data were analyzed descriptively to determine improvements in students' singing ability across four indicators: pitch accuracy, rhythmic accuracy, lyric mastery, and expression with self-confidence. The results showed that students' initial singing ability was low, with only 28% achieving the minimum mastery criterion (KKM). After implementing video-based learning, students' mastery increased to 43% in Cycle I Meeting I, 62% in Cycle I Meeting II, and 90% in Cycle II Meeting I. Teacher activity improved from 60% (adequate) to 96% (excellent), and student activity increased from 59% (adequate) to 96% (excellent). These findings demonstrate that video-based learning effectively improves children's singing ability, confidence, and active participation in music education at the elementary school level.
Abstract:The rapid development of digital technologies has transformed organizational work environments and created new demands for leadership, employee adaptability, and engagement. This study aims to examine the effect of digital…
al leadership, learning agility, and employee engagement on employee performance. A quantitative approach with a cross-sectional survey design was employed. Data were collected from 250 employees using a structured questionnaire measured on a five-point Likert scale. The data were analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) to evaluate the measurement and structural models. The results demonstrate that digital leadership has a positive and significant effect on employee performance (β = 0.247; t = 4.218; p < 0.001). Learning agility also has a positive and significant effect on employee performance (β = 0.286; t = 5.037; p < 0.001). Furthermore, employee engagement has the strongest positive and significant effect on employee performance (β = 0.411; t = 7.126; p < 0.001). The model explains 68.4% of the variance in employee performance, indicating substantial explanatory power. These findings highlight the importance of integrating digitally capable leadership, continuous employee learning, and strong employee engagement to improve performance in an increasingly dynamic and technology-driven work environment. The study contributes to the understanding of how organizational and individual factors jointly support employee performance in the digital era
Abstract:Companies listed in the Jakarta Islamic Index 70 (JII70) provide a unique research context because they operate within an Islamic capital market framework that applies sharia screening criteria and financial requirements.…
. Despite being guided by the same sharia principles and regulatory environment, JII70 companies still show variations in financial performance. Although previous research has examined the factors that affect financial performance, empirical evidence regarding the influence of efficiency, market ratios, liquidity, and leverage still shows inconsistent results, particularly in companies that comply with sharia principles. Therefore, this study aims to analyze the influence of efficiency, market ratio, liquidity, and leverage on the financial performance of companies listed on JII70 by using Return on Assets (ROA) as a performance indicator. This study uses a quantitative approach by utilizing secondary data obtained from the annual reports of 57 non-financial companies during the period 2021–2025, resulting in 285 company-year observations. Panel data regression analysis was performed using the Fixed Effects model with Driscoll–Kraay error standard to overcome the problems of heteroscedasticity and autocorrelation. The results show that efficiency measured by Total Asset Turnover (TATO) and market ratio measured by Price-to-Book Value (PBV) have a positive and significant effect on financial performance. Meanwhile, liquidity measured by Current Ratio (CR) and leverage measured by Debt-to-Asset Ratio (DAR) have a positive but not statistically significant effect on financial performance. The findings of this study support the Signaling Theory by showing that efficiency and market ratio provide stronger signals regarding company quality and financial performance in the context of the Islamic capital market in Indonesia. These findings provide practical implications for managers in improving company performance as well as for investors in making more informed investment decisions
Abstract:In an era of increasingly intense industrial competition, companies are required to enhance their competitiveness through effective human resource development, particularly through needs-based training programs. Training…
Need Analysis (TNA) is a crucial stage in ensuring that training programs align with employees’ competency requirements, thereby improving innovation and performance. This study aims to analyze the influence of Training Need Analysis and training effectiveness, as well as their impact on innovation and employee performance at one an industrial maintenance and workshop services company located in Cilegon. This research employs a quantitative approach using Partial Least Squares Structural Equation Modeling (PLS-SEM). The results indicate that Training Need Analysis and training effectiveness have a positive and significant effect on innovation and employee performance. These findings confirm that the proper implementation of TNA can improve training quality, foster innovation, and enhance employee performance as well as the company’s competitiveness, Partial mediation Innovations in the effect of training need analysis on employee performance, and on the effectiveness of employee performance experience the same partial mediation, with different values
Abstract:This study aimed to examine the effect of work motivation and organizational culture on organizational commitment among civil servants in the Finance Department of Dr. Soedarso Regional General Hospital. A quantitative approach…
pproach with an associative research method was employed. Primary data were obtained through interviews with the Head of the Finance Department and questionnaires distributed to respondents, while secondary data comprised organizational profiles, employee records, attendance data, and performance reports. The population consisted of 30 civil servants, all of whom were selected as respondents using a total sampling technique. Data were analyzed using validity and reliability tests, normality, linearity, and multicollinearity tests, multiple linear regression analysis, correlation analysis, the coefficient of determination, partial t-tests, and a simultaneous F-test. The results showed that work motivation had a positive and significant effect on organizational commitment, with a regression coefficient of 0.321 and a significance value of 0.021. Organizational culture also had a positive and significant effect on organizational commitment, with a regression coefficient of 0.271 and a significance value of 0.015. Simultaneously, work motivation and organizational culture had a significant effect on organizational commitment, as indicated by an F-value of 10.469 and a significance value of 0.001. The correlation coefficient of 0.661 indicated a strong relationship, while the coefficient of determination of 0.437 showed that both variables explained 43.7% of the variation in organizational commitment. Practically, hospital management should strengthen motivation through performance recognition, competency development, fair task distribution, and feedback, while reinforcing organizational culture through shared values, teamwork, accountability, and integrity.