Abstract:This study aims to analyze students’ experiences in conducting self-assessment using the Duolingo Speak application in speaking skills learning at a higher education institution in Indonesia. The focus of this research covers…
covers five main aspects, namely: students’ self-assessment strategies, increased speaking confidence, improved vocabulary mastery, challenges encountered while using Duolingo Speak, and the enhancement of learner autonomy. This study employs a qualitative approach with a case study method, which aims to gain an in-depth understanding of students’ experiences in utilizing Duolingo Speak as a self-assessment tool in speaking learning. Data were collected through semi-structured interviews and documentation involving five students selected through purposive sampling, namely students who had used Duolingo Speak for at least one semester. The data were analyzed using thematic analysis through data organization, coding, theme identification, and conclusion drawing. The findings show that the use of Duolingo Speak provides positive learning experiences for students. The application helps students apply various self-assessment strategies, increases speaking confidence, enriches vocabulary mastery, and fosters learner autonomy. However, several challenges were also found, such as limitations in speech recognition accuracy and feedback that is not yet sufficiently detailed to support optimal reflective learning. Overall, Duolingo Speak can serve as an effective supporting tool in speaking skills instruction when combined with structured self-assessment guidance from lecturers, thereby enhancing the effectiveness of English as a Foreign Language (EFL) learning.
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:Dinas Komunikasi dan Informatika Provinsi Jambi masih melaksanakan proses pencatatan dan monitoring barang masuk secara manual menggunakan dokumen administrasi dan aplikasi perkantoran sederhana, sehingga menimbulkan kendala…
dala berupa kesalahan pencatatan, keterlambatan pencarian data, dan kesulitan penyusunan laporan. Penelitian ini bertujuan merancang Sistem Monitoring dan Pengelolaan Barang Masuk Berbasis Web untuk membantu proses pencatatan, monitoring, pencarian, dan pelaporan data barang masuk secara lebih efektif. Metode pengembangan yang digunakan adalah Waterfall, meliputi analisis kebutuhan, perancangan, implementasi, pengujian, dan pemeliharaan, dengan pemodelan menggunakan UML serta basis data MySQL. Hasil penelitian menunjukkan bahwa sistem yang dibangun mampu mempermudah proses pencatatan barang, mempercepat pencarian data, meningkatkan akurasi penyimpanan data, serta menyederhanakan penyusunan laporan secara otomatis.
The Communication and Informatics Office of Jambi Province still records and monitors incoming goods manually using administrative documents and basic office applications, resulting in recording errors, delayed data retrieval, and difficulties in report preparation. This study aims to design a Web-Based Monitoring and Management System for Incoming Goods to support recording, monitoring, searching, and reporting processes more effectively. The system was developed using the Waterfall method, covering requirements analysis, design, implementation, testing, and maintenance, modeled with UML and a MySQL database. The results show that the developed system simplifies the recording of goods, accelerates data search, improves data storage accuracy, and streamlines automatic report generation.
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 flood disaster that occurred in Ketambe District, Southeast Aceh Regency, at the end of 2025 caused significant impacts on local communities, including damage to housing, disruption of economic activities, and increased…
sed demand for basic necessities. These conditions required a rapid, targeted, and well-coordinated humanitarian response. This community service program aimed to provide clothing and food assistance to flood victims while developing a cross-border university collaboration model for disaster response. The program was implemented through a partnership involving Universitas Gunung Leuser (UGL), Universiti Poly-Tech Malaysia (UPTM), and Insan Cakna. The implementation stages included needs assessment, institutional coordination, aid procurement, aid distribution, and program evaluation. UGL was responsible for needs assessment, local coordination, and aid distribution, while UPTM served as the primary donor providing financial assistance, clothing, and food supplies. Insan Cakna acted as the liaison and coordination facilitator between both institutions. The results demonstrated that the collaboration model improved the effectiveness and accuracy of aid distribution while strengthening institutional synergy in disaster response efforts. Beyond providing direct benefits to affected communities, the program generated a cross-border university collaboration model that can be replicated in future humanitarian and disaster management initiatives. The findings highlight that the success of humanitarian programs depends not only on the availability of aid but also on effective coordination, clear division of responsibilities, and sustainable institutional partnerships.
Abstract:This study aims to analyze in depth the implementation of islamic business ethics in the sale and purchase of classic Vespa motorcycles at Garage Scooter krangkeng, Indramayu Regency, trough the perspective of Sharia Economic…
nomic Law. As part of sociological phenomenon and contemporary automotive creative economy, transactions of used motorcycles with high historical value are often faced with technical information asymmetry between business actors and consumers. This study uses a qualitative-descriptive method with a normative-empirical case study approach. Primary data were collected directly from the field through participatory observation and in-depth interviews with Garage Scooter owners and consumers, while secondary data were obtaied through participatory observastion and-depth interviews with Garage Scooter owners and consumers, national regulitions. The result of the study indicate thet transaction practices at Garage Scooter Kangkeng are carried out through a direct sale and purchase scheme (bal’ musawamah) and an indent system for ordering modification restorations. Business actors have implemened basic islamic business ethics values such as honesty (shiddiq0, trustworthiness, transparancy, and reponsibility for product qualit. However, crucial loopholes are still found in the form of weak black and white doumentation (written contracts), which opens up the potential fo uncertainty (gharar) and manipulation of minor information (tadlis)related to detalled machine specifacitions and the accuracy of restoration times. Viewed form Shari Economic La, the validity of The pillar and conditions of commodity objects requires strengthening after-sales technical tansparancy through written instruments (al-kitabah) to uphold the principle of mutual consent (an-tardhin) and the right to choose (khiyar al-‘aib) in order to achieve tru benefit (maslahah).
Abstract:This study aims to analyze the role of consumer trust in mediating the effects of affiliate marketing and online customer ratings on purchase decisions for fashion products among Shopee users in Surabaya. A quantitative…
approach was used in this research, with data collected through questionnaires from 100 Shopee users in Surabaya. The data analysis was conducted using the Partial Least Squares (PLS) method to examine the direct and mediating relationships between the variables: affiliate marketing, online customer ratings, consumer trust, and purchase decisions. Validity and reliability tests of the instruments were also performed to ensure the accuracy of the variable measurements in this research model.The findings indicate that affiliate marketing does not significantly drive consumer purchase decisions. However, consumer trust plays a key role in mediating the relationship between affiliate marketing and purchase decisions. Without trust, affiliate marketing promotions have limited influence. Additionally, online customer ratings positively influence purchase decisions, and consumer trust is crucial in mediating the relationship between online customer ratings and purchase decisions. Positive ratings from other customers enhance trust in both the product and the seller.
Abstract:This study addresses the limitations of traditional Customer Relationship Management (CRM) systems by analyzing the adoption and impact of Artificial Intelligence (AI) integration (AI-Powered CRM). Informed by the Technology…
logy Acceptance Model (TAM) for employee perception and the Resource-Based View (RBV) for strategic capability, the primary objective is to evaluate how AI-driven automation enhances customer service processes and, subsequently, impacts marketing efficiency. The research employs an exploratory qualitative case study design, utilizing in-depth interviews, document analysis, and system observation on a single organization to gather rich, contextual data. The results demonstrate that AI integration significantly accelerated service, with chatbots handling 65–70% of routine queries and drastically reducing response times. Operationally, these improvements fostered high employee acceptance (TAM). Strategically, the AI-Powered CRM generated refined predictive analytics, resulting in a 12–18% improvement in campaign conversion rates and efficient resource allocation, confirming that AI creates a valuable and difficult-to-imitate strategic capability (RBV). The study concludes that AI-Powered CRM is a critical enabler for both operational efficiency and long-term strategic competitiveness in digital markets.