Portal Jurnal Ilmiah
Goretan Pena

Abstract: This study aims to develop an adaptive mathematics learning media based on machine learning and to examine its feasibility and effectiveness in improving student learning outcomes. The media was developed using the 4D research and development model (define, design, develop, disseminate). A Random Forest algorithm was employed to classify students' ability into three categories (low, medium, high) based on their exercise history, allowing the media to automatically adjust the difficulty level of the exercises. The trial subjects were eighth-grade junior high school students of Tamansiswa Sukadamai. Data were collected through a needs analysis questionnaire, expert validation sheets, a System Usability Scale (SUS) questionnaire, and pretest-posttest learning outcome tests. The results indicate that the media is feasible, practical, and effective in improving student learning outcomes, and that the developed model shows good classification accuracy. Keywords: adaptive learning media, machine learning, learning outcomes, mathematics, Random Forest   Abstrak: Penelitian ini bertujuan untuk mengembangkan media pembelajaran matematika adaptif berbasis machine learning serta menguji kelayakan dan efektivitasnya dalam meningkatkan hasil belajar siswa. Media dikembangkan menggunakan model penelitian dan pengembangan 4D (define, design, develop, disseminate). Algoritma Random Forest digunakan untuk mengklasifikasikan kemampuan siswa ke dalam tiga kategori (rendah, sedang, tinggi) berdasarkan riwayat pengerjaan soal, sehingga media dapat menyesuaikan tingkat kesulitan latihan secara otomatis. Subjek uji coba penelitian adalah siswa kelas VIII SMP Tamansiswa Sukadamai. Data dikumpulkan melalui angket analisis kebutuhan, lembar validasi ahli, angket System Usability Scale (SUS), serta tes hasil belajar (pretest dan posttest). Hasil penelitian menunjukkan bahwa media dinyatakan layak, praktis, dan efektif meningkatkan hasil belajar siswa, serta model yang dikembangkan menunjukkan akurasi klasifikasi yang baik. Kata kunci: media pembelajaran adaptif, machine learning, hasil belajar, matematika, Random Forest

Abstract: This article explores the communication crisis challenges faced by PDAM Tirtanadi and the role of Public Relations (PR) in managing these issues to improve organizational performance. This study employs a qualitative approach with in-depth interviews with the company staff, as the primary data collection method. The findings reveal that the main challenges include a lack of transparency and consistency in delivering information to the public. To address these issues, PDAM Tirtanadi has developed various strategies, such as strengthening internal communication, fostering good relationships with the media through the Forum Wartawan Tirtanadi (Forwadi), and utilizing digital technology for information dissemination. The study concludes by highlighting the importance of crisis communication training for PR teams, strengthening internal communication systems, and ensuring transparency in public interactions to maintain public trust and enhance the organization's reputation. Keywords: Public Relations, Crisis Communication, Organization Performance Abstrak: Penelitian ini bertujuan untuk mengetahui komunikasi krisis yang dihadapi oleh PDAM Tirtanadi dan menganalisis peran Public Relations (PR) dalam mengelola situasi tersebut untuk meningkatkan kinerja organisasi. Penelitian ini menggunakan pendekatan kualitatif dengan wawancara mendalam dengan pihak PT sebagai metode pengumpulan data utama. Hasil penelitian menunjukkan bahwa tantangan utama dalam menghadapi krisis komunikasi adalah kurangnya transparansi dan konsistensi dalam penyampaian informasi kepada masyarakat. Untuk mengatasi hal ini, PDAM Tirtanadi telah mengembangkan berbagai strategi, seperti memperkuat komunikasi internal, menjalin hubungan baik dengan media melalui Forum Wartawan Tirtanadi (Forwadi), dan memanfaatkan teknologi digital dalam menyampaikan informasi. Kesimpulan dari penelitian ini menunjukkan bahwa pentingnya pelatihan komunikasi krisis bagi tim PR, penguatan sistem komunikasi internal, serta transparansi dalam berinteraksi dengan masyarakat untuk menjaga kepercayaan publik dan meningkatkan reputasi organisasi. Kata kunci: Public Relations, Krisis Komunikasi, Kinerja Organisasi

Abstract: Aquaculture has significant potential to contribute to local economic development. However, one of the major challenges faced by fish farmers is that fish fry production remains below target, with productivity below 70%. This low level of production negatively affects farmers' income and the sustainability of their aquaculture operations. One of the hatcheries facing this challenge is the Unit Pembenihan Rakyat Karya Yuda. The application of ozonation technology offers a promising approach to improving water quality and enhancing fish fry production. However, knowledge of how to apply ozonation technology remains limited among fish farmers. This community service program aimed to enhance fish farmers' knowledge and understanding of ozonation technology and its application in aquaculture. The program consisted of three stages: preparation, implementation, and evaluation. The results showed that applying ozone gas to pond water improved catfish fry productivity. The water quality parameters remained within the normal range, with a temperature of 30.2°C, a pH of 7.9, and a dissolved oxygen (DO) concentration of 6.7 mg/L. In addition, the fish egg hatching rate exceeded 85%, the fish fry exhibited faster growth, and no fungal infection was observed on the fish eggs. In conclusion, this community service program demonstrated that the application of ozonation technology benefited UPR Karya Yuda by maintaining good water quality and increasing fish fry production.   Keyword: fish; ozone plasma; pond   Abstrak: Budidaya perikanan memiliki potensi yang besar dalam mendorong peningkatan perekonomian di masyarakat. Kendala yang dihadapi oleh pembudidaya ikan diantaranya produktivitas benih ikan yang masih dibawah target yaitu < 70%. Produksi ikan yang rendah akan berpengaruh terhadap pendapatan pembudidaya ikan. Pembudidaya ikan yang mengalami masalah seperti ini contohnya Unit Pembenihan Rakyat Karya Yuda. Solusi yang dapat dipilih yaitu penggunaan teknologi ozonisasi. Akan tetapi, informasi terkait manfaat teknologi ozonisasi ini masih minim di kalangan pembudidaya ikan. Tujuan kegiatan pengabdian kepada masyarakat yaitu meningkatkan pengetahuan dan informasi kepada pembudidaya ikan terkait teknologi ozonisasi.. Hasil kegiatan yaitu gas ozon yang diaplikasikan pada air kolam mendukung produktivitas benih ikan lele. Parameter kualitas air tergolong normal yaitu suhu sebesar 30,2 0C, nilai pH.nya 7,9 dan nilai DO yaitu 6,7 mg/L. Sedangkan daya tetas telur ikan > 85%, pertumbuhan benih ikan lebih cepat dan tidak ditemukan jamur pada telur ikan. Simpulan dari kegiatan pengabdian kepada masyarakat adalah teknologi ozonisasi memberikan manfaat untuk UPR Karya Yuda, yaitu mempertahankan kualitas air tetap baik bagi ikan serta meningkatkan produksi benih ikan.     Kata kunci: ikan; plasma ozon; kolam

This study aims to analyze the effect of learning discipline and learning independence on the economic learning achievement of 11th-grade students at SMAN 13 Medan in the 2025/2026 academic year. The study uses a quantitative approach with an ex-post facto method. The population of the study includes all 11th-grade students consisting of four classes, with a sample of 105 students selected using simple random sampling. Data were collected through questionnaires and analyzed using multiple linear regression with the help of SPSS version 26. The results of the study show the regression equation Y = 60.410 + 0.246X₁ + 0.174X₂ + e. Partially, learning discipline has a positive and significant effect on academic achievement with a t-count value = 5.995 > t-table = 1.659 and significance 0.000 < 0.05. Learning independence also has a positive and significant effect on academic achievement with a t-count value = 4.154 > t-table = 1.659 and significance 0.000 < 0.05. Simultaneously, learning discipline and independence. Simultaneously, study discipline and learning independence have a positive and significant effect on academic achievement, with a calculated F value of 125.185 > table F of 3.09 and a significance of 0.000 < 0.05. These two variables contribute 71.1% to academic achievement, while 28.9% is influenced by other factors outside the study. Thus, study discipline and learning independence positively and significantly affect the economics learning achievement of 11th grade students at SMAN 13 Medan

Abstract: Advances in information technology are driving the digitization of public services, including public complaint handling at the village level. The complaint process in Singarajan Village is still carried out manually, resulting in ineffective documentation, difficulty in monitoring follow-up actions on complaints, and potential risks to data confidentiality and integrity. This study aims to develop a mobile-based public complaint system capable of improving the effectiveness of complaint management while ensuring data security through a combination of the RSA and AES-256-CBC algorithms and HMAC-SHA256 authentication. The research method used is a mixed-methods approach, with the system development phase following the SDLC Waterfall model, including requirement analysis, design, coding, testing, and maintenance. System testing was conducted using Black Box Testing to evaluate the application’s functionality and the System Usability Scale (SUS) to measure usability. The research results show that all major system functions operate as intended; the hybrid encryption process successfully maintains the confidentiality of complaint data, while HMAC is able to verify data integrity during the communication process. The SUS test results yielded an average score of 61.33, which falls into the “Marginal Acceptable” category with a grade of D; thus, the application is deemed usable, although it still requires improvement in terms of ease of use. Keywords: Complaint System; Hybrid Encryption; RSA; AES-256-CBC; HMAC-SHA256; Waterfall SDLC.   Abstrak: Perkembangan teknologi informasi mendorong digitalisasi layanan publik, termasuk pelayanan pengaduan masyarakat di tingkat desa. Proses pengaduan di Desa Singarajan masih dilakukan secara manual sehingga menyebabkan pendokumentasian kurang efektif, tindak lanjut pengaduan sulit dipantau, serta berpotensi menimbulkan risiko terhadap kerahasiaan dan integritas data. Tujuan penelitian ini ialah mengembangkan sistem pengaduan masyarakat berbasis mobile yang mampu meningkatkan efektivitas pengelolaan pengaduan sekaligus menjamin keamanan data menggunakan kombinasi algoritma RSA-2048, AES-256-CBC, dan autentikasi HMAC-SHA256. Metode penelitian yang digunakan adalah Mixed Method dengan tahapan pengembangan sistem SDLC Waterfall, meliputi requirement analysis, design, coding, testing, dan maintenance. Pengujian sistem dilakukan menggunakan Black Box Testing untuk menguji fungsionalitas aplikasi serta System Usability Scale (SUS) untuk mengukur tingkat usability. Hasil penelitian menunjukkan bahwa seluruh fungsi utama sistem berjalan sesuai dengan kebutuhan, proses hybrid encryption berhasil menjaga kerahasiaan data pengaduan, sedangkan HMAC mampu memverifikasi integritas data selama proses komunikasi. Hasil pengujian SUS memperoleh nilai rata-rata 61,33, yang termasuk kategori Marginal Acceptable dengan grade D, sehingga aplikasi dinilai telah dapat digunakan, meskipun masih memerlukan peningkatan pada aspek kemudahan penggunaan. Kata kunci: Sistem Pengaduan; Hybrid Encryption; RSA-2048; AES-256-CBC; HMAC-SHA256; SDLC Waterfall.

Economics learning in high school is still dominated by lecture methods and the use of less interactive media, resulting in low student engagement and learning outcomes. This study aims to develop interactive Nearpod-based learning media on Banking, Non-Bank Financial Industry, and Capital Market materials, and to test its feasibility and effectiveness in improving the learning outcomes of grade X students of SMA Negeri 1 Medan. This study uses the Research and Development (R&D) method with the ADDIE development model which includes the stages of Analysis, Design, Development, Implementation, and Evaluation. The research subjects consisted of validators including material experts, media experts, and learning design experts, as well as grade X students of SMA Negeri 1 Medan. Data collection techniques were carried out through observation, questionnaires, documentation, and learning outcome tests. Data analysis used quantitative descriptive analysis, Independent Sample t-test, and Normalized Gain (N-Gain). The results showed that Nearpod-based learning media obtained a feasibility percentage of 88% based on media expert assessments and student responses of 93% with a very feasible category. The effectiveness test results showed a significant difference in learning outcomes between the experimental and control classes (Sig. = 0.000 < 0.05). The N-Gain value of the experimental class was 0.763, which is in the high category, while the control class was 0.565, which is in the medium category. Thus, the Nearpod-based interactive learning media was declared feasible and effective in improving student learning outcomes in Economics.

Abstract: This study aims to determine the effect of organizational communication, job satisfaction, and career development on employee performance at the Population Control, Family Planning, Women Empowerment, and Child Protection Office of Asahan Regency. This research employed a quantitative method with multiple linear regression analysis. The sample was determined using saturated sampling, in which the entire population was used as the sample, totaling 47 respondents. The results show that organizational communication, job satisfaction, and career development simultaneously have a positive and significant effect on employee performance, as indicated by Fcount (31.015) > Ftable (2.82) and a significance value of 0.000 < 0.05. Partially, organizational communication has a positive and significant effect on employee performance with tcount (3.040) > ttable (2.016) and a significance value of 0.004 < 0.05. Job satisfaction also has a positive and significant effect with tcount (2.855) > ttable (2.016) and a significance value of 0.007 < 0.05. Furthermore, career development has a positive and significant effect with tcount (2.793) > ttable (2.016) and a significance value of 0.008 < 0.05. The coefficient of determination indicates an Adjusted R Square value of 0.662, meaning that organizational communication, job satisfaction, and career development explain 66.2% of employee performance, while the remaining 33.8% is explained by other variables outside the research model. Keywords: Organizational Communication, Job Satisfaction, Career Development, Employee Performance.   Abstrak: Penelitian ini bertujuan untuk mengetahui pengaruh komunikasi organisasi, kepuasan kerja, dan pengembangan karir terhadap kinerja pegawai pada Dinas Pengendalian Penduduk Keluarga Berencana Pemberdayaan Perempuan dan Perlindungan Anak Kabupaten Asahan. Metode penelitian yang digunakan adalah metode kuantitatif dengan teknik analisis regresi linear berganda. Sampel ditentukan menggunakan metode sampling jenuh, yaitu seluruh populasi dijadikan sampel sebanyak 47 responden. Hasil penelitian menunjukkan bahwa secara simultan komunikasi organisasi, kepuasan kerja, dan pengembangan karir berpengaruh positif dan signifikan terhadap kinerja pegawai, dengan nilai Fhitung (31,015) > Ftabel (2,82) dan nilai signifikansi sebesar 0,000 < 0,05. Secara parsial, komunikasi organisasi berpengaruh positif dan signifikan terhadap kinerja pegawai dengan nilai thitung (3,040) > ttabel (2,016) dan nilai signifikansi sebesar 0,004 < 0,05. Kepuasan kerja juga berpengaruh positif dan signifikan dengan nilai thitung (2,855) > ttabel (2,016) dan nilai signifikansi sebesar 0,007 < 0,05. Demikian pula, pengembangan karir berpengaruh positif dan signifikan dengan nilai thitung (2,793) > ttabel (2,016) dan nilai signifikansi sebesar 0,008 < 0,05. Hasil koefisien determinasi menunjukkan nilai Adjusted R Square sebesar 0,662, artinya komunikasi organisasi, kepuasan kerja, dan pengembangan karir mampu menjelaskan kinerja pegawai sebesar 66,2%, sedangkan 33,8% sisanya dijelaskan oleh variabel lain di luar model penelitian ini. Kata kunci: Komunikasi Organisasi, Kepuasan Kerja, Pengembangan Karir, Kinerja Pegawai.

Abstract: The traditional process of making cendol is still carried out manually, especially during the stirring stage of the batter throughout the cooking process. Continuous stirring requires considerable effort and a relatively long time. In addition, inconsistent stirring speed can cause the batter to mix unevenly, thereby affecting the quality of the resulting cendol. Therefore, an automatic cendol stirring machine is needed to help improve production efficiency and produce a more homogeneous batter. This study aims to design and develop an Arduino Uno-based automatic cendol stirring machine capable of automating the cendol batter stirring process. The system uses an Arduino Uno as the main controller, a DC motor to drive the stirring mechanism, a temperature sensor to monitor the temperature during the cooking process, and an LCD as the information display. Testing was conducted to evaluate the system's performance in automatically stirring the batter and maintaining the stability of the cooking process. The test results show that the automatic cendol stirring machine performs well according to the design. The system is able to stir the batter continuously at a stable speed, ensuring the batter is mixed evenly while reducing the operator's workload. The use of the Arduino Uno as the control system also simplifies operation and improves the efficiency of the cendol production process. Keywords: Arduino Uno, cendol, automatic stirring machine, DC motor, control system.   Abstrak: Proses pembuatan cendol secara tradisional masih dilakukan secara manual, terutama pada tahap pengadukan adonan selama proses pemasakan. Pengadukan yang dilakukan secara terus-menerus membutuhkan tenaga yang besar dan waktu yang cukup lama. Selain itu, ketidakstabilan kecepatan pengadukan dapat menyebabkan adonan tidak tercampur secara merata, sehingga memengaruhi kualitas cendol yang dihasilkan. Oleh karena itu, diperlukan suatu mesin pengaduk cendol otomatis yang dapat membantu meningkatkan efisiensi proses produksi dan menghasilkan adonan yang lebih homogen. Penelitian ini bertujuan untuk merancang dan membangun mesin pengaduk cendol otomatis berbasis Arduino Uno yang mampu mengotomatisasi proses pengadukan adonan cendol. Sistem menggunakan Arduino Uno sebagai pengendali utama, motor DC sebagai penggerak mekanisme pengaduk, sensor suhu untuk memantau temperatur selama proses pemasakan, serta LCD sebagai media tampilan informasi. Pengujian dilakukan untuk mengetahui kinerja sistem dalam mengaduk adonan secara otomatis dan menjaga kestabilan proses pemasakan. Hasil pengujian menunjukkan bahwa mesin pengaduk cendol otomatis dapat bekerja dengan baik sesuai dengan rancangan. Sistem mampu melakukan pengadukan secara kontinu dengan kecepatan yang stabil sehingga adonan tercampur secara merata dan mengurangi beban kerja operator. Penggunaan Arduino Uno sebagai sistem kendali juga memudahkan pengoperasian dan meningkatkan efisiensi proses produksi cendol. Kata kunci: Arduino Uno, cendol, mesin pengaduk otomatis, motor DC, sistem kendali.

Abstract: This study aims to examine the implementation of Microsoft Excel in improving the quality of financial management at As Sa'adah Mosque, Jelutung, Jambi City. The research employed an applied descriptive method with data collection techniques including observation, interviews, and documentation. The implementation of Microsoft Excel was carried out through stages of needs analysis, format design, mentoring, and evaluation. The results showed that the use of Microsoft Excel improved the accuracy of financial recording, accelerated the report preparation process, and enhanced the transparency and accountability of mosque fund management. The obstacles faced included limited human resources and the need for adaptation to the new system. This study concludes that Microsoft Excel can be an effective and affordable solution for digital-based mosque financial management, particularly for mosques with limited technological resources. Keywords: financial management; Microsoft Excel; mosque; transparency; accountability   Abstrak: Penelitian ini bertujuan untuk mengkaji pengaruh pemanfaatan Microsoft Excel dalam meningkatkan kualitas pengelolaan keuangan di Masjid As Sa'adah Jelutung Kota Jambi. Metode penelitian yang digunakan adalah deskriptif terapan dengan teknik pengumpulan data melalui observasi, wawancara, dan dokumentasi. Pengaruh Microsoft Excel dilakukan melalui tahapan analisis kebutuhan, perancangan format, pendampingan, dan evaluasi. Hasil penelitian menunjukkan bahwa penggunaan Microsoft Excel meningkatkan keakuratan pencatatan keuangan, mempercepat proses penyusunan laporan, serta meningkatkan transparansi dan akuntabilitas pengelolaan dana masjid. Kendala yang dihadapi antara lain keterbatasan sumber daya manusia dan perlunya adaptasi terhadap sistem baru. Penelitian ini menyimpulkan bahwa Microsoft Excel dapat menjadi solusi digitalisasi pengelolaan keuangan masjid yang efektif dan terjangkau, khususnya bagi masjid dengan keterbatasan sumber daya teknologi. Kata kunci: akuntabilitas; Microsoft Excel; pengelolaan keuangan; masjid; transparansi

Abstract: The rapid advancement of Large Language Models (LLMs) has significantly improved sentiment analysis capabilities. However, the extent to which these models produce sentiment classifications consistent with human judgment remains an important research question. This study aims to evaluate and compare the agreement of ChatGPT, Gemini, and DeepSeek with human-generated ground truth in sentiment analysis. A total of 1,497 product reviews were collected from the Sephora Products and Skincare Reviews dataset. Three independent annotators labeled each review as positive, neutral, or negative to establish the ground truth. The annotation reliability achieved a Fleiss' Kappa coefficient of 0.7053, indicating substantial agreement and confirming the reliability of the ground truth for evaluation purposes. Subsequently, the three LLMs performed sentiment classification using an Expectation–Role–Action (ERA) prompting strategy. Model performance was assessed using Cohen's Kappa to measure agreement with the ground truth and Spearman's rank correlation to evaluate the consistency of sentiment rankings. The results show that DeepSeek achieved the highest performance, with an average Cohen's Kappa of 0.753 and an average Spearman's correlation coefficient of 0.860, followed by Gemini (κ = 0.662; ρ = 0.834), while ChatGPT demonstrated the lowest agreement (κ = 0.223; ρ = 0.367). These findings indicate that the three LLMs exhibit significantly different levels of agreement with human judgment, with DeepSeek producing sentiment classifications that most closely align with the established ground truth.  Keywords: Large Language Models, Sentiment Analysis, Ground Truth, Cohen's Kappa, Spearman's Rank Correlation.   Abstrak: Perkembangan Large Language Models (LLMs) telah meningkatkan kemampuan analisis sentimen berbasis kecerdasan buatan. Namun, tingkat kesesuaian hasil klasifikasi sentimen yang dihasilkan oleh berbagai LLM terhadap penilaian manusia masih memerlukan evaluasi yang komprehensif. Penelitian ini bertujuan membandingkan tingkat kesesuaian hasil analisis sentimen ChatGPT, Gemini, dan DeepSeek terhadap ground truth yang diperoleh melalui anotasi manusia. Penelitian menggunakan 1.497 ulasan produk dari dataset Sephora Products and Skincare Reviews. Sebanyak tiga anotator independen melakukan pelabelan sentimen ke dalam kategori positif, netral, dan negatif untuk membentuk ground truth. Hasil pengujian reliabilitas menunjukkan nilai Fleiss' Kappa sebesar 0,7053, yang mengindikasikan tingkat kesepakatan Substantial Agreement, sehingga ground truth layak digunakan sebagai acuan evaluasi. Selanjutnya, ketiga model LLM melakukan klasifikasi sentimen menggunakan prompt berbasis Expectation–Role–Action (ERA). Tingkat kesesuaian hasil klasifikasi dievaluasi menggunakan Cohen's Kappa, sedangkan konsistensi hubungan dengan ground truth dianalisis menggunakan korelasi Spearman. Hasil penelitian menunjukkan bahwa DeepSeek memberikan performa terbaik dengan rata-rata Cohen's Kappa sebesar 0,753 dan rata-rata korelasi Spearman sebesar 0,860, diikuti oleh Gemini (κ = 0,662; ρ = 0,834), sedangkan ChatGPT memperoleh tingkat kesesuaian terendah (κ = 0,223; ρ = 0,367). Temuan ini menunjukkan bahwa terdapat perbedaan kemampuan interpretasi sentimen antar model LLM, dengan DeepSeek menghasilkan klasifikasi yang paling mendekati penilaian manusia pada dataset yang digunakan. Kata kunci: Large Language Model, Analisis Sentimen, Ground Truth, Cohen's Kappa, Spearman Correlation.

Abstract: This study aims to examine the influence of Job Security and Organizational Support on Employee Performance from managerial and legal perspectives. A quantitative approach was employed involving employees of medium and large-scale companies in Asahan Regency. Data were analyzed using the Partial Least Squares Structural Equation Modeling (PLS-SEM). The findings reveal that both Job Security and Organizational Support have a positive and significant effect on Employee Performance, with Organizational Support emerging as the strongest predictor. These results highlight that integrating effective human resource management practices with compliance with employment regulations plays a vital role in improving employee performance. Keywords: Employee Performance; Employment Law; Job Security; Organizational Support; Human Resource Management.   Abstrak: Penelitian ini bertujuan menganalisis pengaruh Kepastian Status Kerja dan Dukungan Organisasi terhadap Kinerja Karyawan melalui pendekatan manajerial dan yuridis. Penelitian menggunakan metode kuantitatif dengan sampel karyawan perusahaan skala menengah dan besar di Kabupaten Asahan. Data dianalisis menggunakan SEM-PLS. Hasil penelitian menunjukkan bahwa Kepastian Status Kerja dan Dukungan Organisasi berpengaruh positif serta signifikan terhadap Kinerja Karyawan, dengan Dukungan Organisasi sebagai faktor yang paling dominan. Temuan ini menegaskan bahwa sinergi antara praktik manajemen sumber daya manusia dan kepatuhan terhadap regulasi ketenagakerjaan berperan penting dalam meningkatkan kinerja karyawan. Kata kunci: Dukungan Organisasi; Hukum Ketenagakerjaan; Kepastian Status Kerja; Kinerja Karyawan; Manajemen Sumber Daya Manusia.

Abstract: The development of information technology has significantly contributed to improving efficiency and effectiveness in various sectors, including education. One of the essential aspects of school management is the administration of tuition fee (SPP) payments, which in many cases is still carried out manually. This manual process often leads to several problems such as delays in recording, administrative errors, and lack of information transparency. This study aims to design and develop a web-based information system for managing SPP payments at SMK Rahmat Islamiyah Medan using the Rapid Application Development (RAD) method. RAD was chosen because it enables faster system development through iterative phases including planning, requirements analysis, prototype design, implementation, and continuous evaluation based on user feedback. The system provides key features such as student data management, billing management, payment transaction recording, and real-time payment reports. With this system, the school can manage tuition fee payments more effectively, accurately, and transparently, while parents are able to easily monitor their child’s payment status online. The testing results indicate that the system minimizes recording errors, accelerates administrative processes, and improves user satisfaction. Therefore, the web-based SPP payment information system designed using the RAD method is expected to support a more modern, efficient, and accountable financial management process within the school. Keywords: Information System, Tuition Fee Payment, Web-Based, Rapid Application Development (RAD), SMK Rahmat Islamiyah Medan.   Abstrak: Perkembangan teknologi informasi telah memberikan kontribusi signifikan dalam peningkatan efisiensi dan efektivitas pelayanan di berbagai bidang, termasuk sektor pendidikan. Salah satu aspek penting dalam manajemen sekolah adalah pengelolaan pembayaran Sumbangan Pembinaan Pendidikan (SPP) yang sering kali masih dilakukan secara manual, sehingga menimbulkan berbagai kendala seperti keterlambatan pencatatan, kesalahan administrasi, dan kurangnya transparansi informasi. Penelitian ini bertujuan untuk merancang dan membangun sistem informasi pembayaran tagihan SPP berbasis web di SMK Rahmat Islamiyah Medan dengan menggunakan metode Rapid Application Development (RAD). Metode RAD dipilih karena mampu mempercepat proses pengembangan sistem melalui tahapan perencanaan, analisis kebutuhan, perancangan prototipe, implementasi, serta evaluasi secara berulang berdasarkan umpan balik pengguna. Sistem yang dibangun menyediakan fitur utama berupa pencatatan data siswa, pengelolaan tagihan, pencatatan transaksi pembayaran, serta penyediaan laporan pembayaran secara real-time. Dengan adanya sistem ini, pihak sekolah dapat melakukan pengelolaan pembayaran SPP secara lebih efektif, akurat, dan transparan, sementara orang tua siswa dapat dengan mudah memantau status pembayaran secara online. Hasil pengujian menunjukkan bahwa sistem informasi ini dapat meminimalisasi kesalahan pencatatan, mempercepat proses administrasi, serta meningkatkan kepuasan pengguna. Dengan demikian, sistem informasi pembayaran SPP berbasis web yang dirancang menggunakan metode RAD diharapkan mampu mendukung proses manajemen keuangan sekolah yang lebih modern, efisien, dan akuntabel. Kata kunci: Sistem Informasi, Pembayaran SPP, Web, Rapid Application Development (RAD), SMK Rahmat Islamiyah Medan.

Penelitian ini bertujuan untuk mengevaluasi kinerja dan menyempurnakan model Sistem Pendukung Keputusan (SPK) dalam pemilihan pegawai teladan menggunakan metode TOPSIS (Technique for Order Preference by Similarity to Ideal Solution). Penelitian dilakukan karena adanya keterbatasan pada sistem sebelumnya, terutama dalam pembobotan kriteria dan belum adanya evaluasi kinerja sistem secara menyeluruh. Metode yang digunakan adalah TOPSIS dengan tahapan normalisasi matriks keputusan, pembobotan kriteria, penentuan solusi ideal positif dan negatif, perhitungan jarak, serta penentuan nilai preferensi untuk perangkingan. Hasil penelitian menunjukkan bahwa sistem mampu menghasilkan peringkat pegawai secara objektif dan sistematis berdasarkan berbagai kriteria. Setelah dilakukan penyempurnaan melalui penyesuaian bobot dan validasi data, kinerja sistem mengalami peningkatan yang ditunjukkan dengan hasil yang lebih konsisten, akurat, dan sesuai dengan kondisi nyata. Model yang telah disempurnakan mampu mendukung pengambilan keputusan secara lebih efektif. Dengan demikian, evaluasi dan penyempurnaan model SPK berbasis TOPSIS berkontribusi dalam meningkatkan kualitas dan keandalan keputusan.

Penelitian ini bertujuan menganalisis pengaruh implementasi bahan ajar kimia berbasis nilai-nilai spiritual dengan model Discovery Learning terhadap hasil belajar kimia dan sikap spiritual siswa, mengetahui perubahan sikap spiritual sebelum dan sesudah pembelajaran, serta menganalisis hubungan antara sikap spiritual dan hasil belajar pada materi sistem periodik unsur dan struktur atom. Penelitian menggunakan metode kuasi eksperimen dengan desain pretest-posttest control group. Populasi penelitian adalah seluruh siswa kelas XI IPA MAS PAB 2 Helvetia Tahun Ajaran 2025/2026, dengan sampel dua kelas yang dipilih menggunakan teknik total sampling, terdiri atas kelas eksperimen dan kelas kontrol. Instrumen penelitian berupa tes hasil belajar dan angket sikap spiritual yang telah memenuhi uji validitas dan reliabilitas. Analisis data dilakukan menggunakan uji normalitas, homogenitas, independent sample t-test, paired sample t-test, dan korelasi Pearson dengan bantuan IBM SPSS Statistics 25. Hasil penelitian menunjukkan rata-rata posttest kelas eksperimen (80,67) lebih tinggi dibandingkan kelas kontrol (73,17). Penggunaan bahan ajar berbasis nilai-nilai spiritual berpengaruh signifikan terhadap hasil belajar (Sig. = 0,000 < 0,05). Sikap spiritual siswa juga meningkat secara signifikan dari 63,72 menjadi 78,00 (Sig. = 0,000). Selain itu, terdapat hubungan positif yang signifikan antara sikap spiritual dan hasil belajar (r = 0,537; Sig. = 0,002) dengan kontribusi sebesar 28,9%. Temuan ini menunjukkan bahwa bahan ajar berbasis nilai-nilai spiritual melalui model Discovery Learning efektif meningkatkan hasil belajar dan sikap spiritual siswa.

Abstract: This study examines guest experiences at Labersa Hotel & Convention Center Samosir regarding price, service quality, and facilities. A qualitative method with a descriptive approach was employed. Primary data were obtained through in-depth interviews and observations of 37 informants selected purposively, while secondary data were gathered from books, journals, and relevant documents. Data analysis techniques included data reduction, data display, and conclusion drawing. The results showed that guest experiences with price were positively perceived, with 86.5% of respondents stating that room rates were in line with the facilities received and 64.9% willing to stay again at the same price. Guest experiences with service quality were rated very positively with a satisfaction level of 84.3%, particularly in terms of complaint handling (94.6%) and staff friendliness (83.8%), although service speed still needs improvement. Guest experiences with facilities showed a fairly positive rating with a satisfaction level of 76.3%, where the most preferred facilities were hotel rooms, swimming pools, and restaurants, yet complaints remained regarding WiFi connectivity, AC conditions, and inconsistent cleanliness. The alignment of price with quality and facilities showed a very positive rating with a satisfaction level of 86.4%. Overall, the average guest satisfaction level reached 81.4%, which falls into the good category. This study concludes that price, service quality, and facilities have provided a satisfying stay experience for guests; however, the hotel needs to improve its facilities, particularly in terms of WiFi stability, AC repairs, and consistent cleanliness standards. Keyword: facilities, guest experience, price, service quality, SERVQUAL   Abstrak: Studi ini mengkaji pengalaman tamu di Labersa Hotel & Convention Center Samosir mengenai harga, kualitas pelayanan, dan fasilitas. Metode kualitatif dan deskriptif digunakan. Data primer diperoleh melalui observasi dan wawancara menyeluruh terhadap 37 informan yang dipilih secara purposive, sedangkan data sekunder diperoleh dari buku, jurnal, dan dokumen yang relevan. Teknik analisis data meliputi pengurangan data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa pengalaman tamu dengan harga sangat baik; 84,3% responden sangat puas dengan layanan, terutama dengan penanganan keluhan (94,6%) dan keramahan staf (83,8%), dan 64,9% bersedia menginap lagi dengan harga yang sama. Kesesuaian harga dengan kualitas dan fasilitas menunjukkan penilaian yang sangat baik, dengan rata-rata kepuasan tamu 86,4 persen, dan kepuasan umum 81,4 persen. Penelitian ini menemukan bahwa meskipun harga, kualitas pelayanan, dan fasilitas telah memberikan pengalaman menginap yang memuaskan bagi tamu, hotel harus meningkatkan fasilitasnya, terutama dalam hal stabilitas WiFi, perbaikan AC, dan tingkat kebersihan yang konsisten.   Kata kunci: fasilitas, harga, kualitas pelayanan, pengalaman tamu, SERVQUAL

Abstract: Hydrometeorological disasters frequently damage electrical and telecommunication infrastructures, disrupting the coordination of Search and Rescue (SAR) operations. Conventional communication devices such as Handy Talkies (HT) are limited to voice communication and do not support real-time multimedia data transmission. This study aims to develop a portable emergency communication system based on Low Earth Orbit (LEO) Starlink satellite internet integrated with a solar power system as an independent energy source to support communication during post-disaster emergency response. The research employs the Research and Development (R&D) approach using the Design Science Research (DSR) paradigm, consisting of requirement identification, system architecture design, prototype development, laboratory testing, and field simulation. System performance is evaluated based on Quality of Service (QoS) parameters, including latency, throughput, connection stability, power consumption, operating duration, and system portability. The prototype is designed to weigh less than 15 kg, require less than 10 minutes for deployment, and operate independently for 6–8 hours using a 300–500 W solar power system. The proposed system is expected to provide reliable internet connectivity for real-time transmission of audio, video, images, and GPS coordinates, thereby improving the effectiveness of SAR coordination in disaster-affected areas. Keywords: Emergency Communication; Starlink; Solar power; Search and Rescue; Satellite Network.   Abstrak: Bencana hidrometeorologi sering menyebabkan kerusakan infrastruktur listrik dan telekomunikasi sehingga menghambat koordinasi operasi Search and Rescue (SAR). Keterbatasan perangkat komunikasi konvensional seperti Handy Talky (HT) mengakibatkan pertukaran informasi hanya terbatas pada komunikasi suara tanpa dukungan data multimedia secara real-time. Penelitian ini bertujuan mengembangkan sistem komunikasi darurat portabel berbasis internet satelit Low Earth Orbit (LEO) Starlink yang terintegrasi dengan panel surya sebagai sumber energi mandiri untuk mendukung komunikasi pada kondisi pascabencana. Metode penelitian menggunakan pendekatan Research and Development (R&D) dengan paradigma Design Science Research (DSR) yang meliputi identifikasi kebutuhan, perancangan arsitektur sistem, pengembangan prototipe, pengujian laboratorium, dan simulasi lapangan. Evaluasi dilakukan terhadap parameter Quality of Service (QoS) berupa latensi, throughput, stabilitas koneksi, konsumsi daya, durasi operasi, serta portabilitas sistem. Prototipe dirancang berbobot kurang dari 15 kg, waktu pemasangan kurang dari 10 menit, dan mampu beroperasi mandiri selama 6–8 jam menggunakan panel surya berkapasitas 300–500 W. Sistem yang dikembangkan diharapkan mampu menyediakan konektivitas internet yang stabil untuk mendukung komunikasi audio, video, citra, dan koordinat GPS secara real-time, sehingga meningkatkan efektivitas koordinasi operasi SAR di wilayah terdampak bencana.. Kata kunci: Komunikasi darurat; Starlink; Panel Surya; Search and Rescue; Jaringan Satelit.

Abstract: This study aims to analyze the implementation of a traditional mini-market based deep learning approach in science instruction regarding measurement topics at SMP Negeri 4 Tebing Tinggi. The study employed a qualitative approach with a case study design. Research subjects consisted of a science teacher and students selected through purposive sampling. Data were collected via participant observation, in-depth interviews, and documentation, then analyzed through data reduction, data presentation, and conclusion drawing, with validity ensured through source and technique triangulation. The results revealed three key findings: (1) the deep learning approach was optimally implemented through contextual learning involving hands-on measurement activities; (2) utilizing a traditional mini-market as a learning resource provided an authentic experience that reinforced the understanding of measurement concepts and unit conversions; and (3) the approach positively impacted students' measurement skills, numeracy literacy, active engagement, and ability to connect science concepts to daily life. Thus, the traditional mini-market-based deep learning approach serves as an effective, contextual, and meaningful alternative for science instruction, supporting students' mastery of concepts alongside their practical application skills. Keywords: deep learning; science instruction; traditional mini-market; measurement; numeracy literacy   Abstrak: Penelitian ini bertujuan menganalisis implementasi pendekatan deep learning berbasis mini market tradisional dalam pembelajaran IPA pada materi pengukuran di SMP Negeri 4 Tebing Tinggi. Penelitian menggunakan pendekatan kualitatif dengan desain studi kasus. Subjek penelitian terdiri atas guru IPA dan siswa yang dipilih secara purposive. Data dikumpulkan melalui observasi partisipatif, wawancara mendalam, dan dokumentasi, kemudian dianalisis menggunakan tahapan reduksi data, penyajian data, serta penarikan kesimpulan dengan menjamin keabsahan melalui triangulasi sumber dan teknik. Hasil penelitian menunjukkan tiga temuan utama, yaitu: (1) pendekatan deep learning telah diimplementasikan secara optimal melalui pembelajaran kontekstual yang melibatkan aktivitas pengukuran secara langsung; (2) pemanfaatan mini market tradisional sebagai sumber belajar memberikan pengalaman autentik yang memperkuat pemahaman konsep pengukuran dan konversi satuan; dan (3) pendekatan tersebut berdampak positif terhadap keterampilan pengukuran, literasi numerasi, keaktifan, serta kemampuan siswa menghubungkan konsep IPA dengan kehidupan sehari-hari. Dengan demikian, pendekatan deep learning berbasis mini market tradisional menjadi alternatif pembelajaran IPA yang efektif, kontekstual, dan bermakna dalam mendukung penguasaan konsep sekaligus keterampilan aplikatif siswa. Kata kunci: deep learning; pembelajaran IPA; mini market tradisional; pengukuran; literasi numerasi

Abstract: The quality of Smart City services needs continuous evaluation to ensure that digital public services meet citizens' expectations. This study evaluates the quality of Smart City services through sentiment analysis of user reviews on the Sibisa application of Medan City using a Natural Language Processing (NLP) approach. The research employed a quantitative descriptive method by collecting user review data from the Google Play Store. The data were processed through preprocessing stages, including case folding, tokenization, stopword removal, and stemming, followed by sentiment classification into positive, negative, and neutral categories. The analysis results indicate that user opinions provide valuable insights into the strengths and weaknesses of the Sibisa application. Positive sentiments reflect user satisfaction with service accessibility and convenience, while negative sentiments mainly relate to application performance, system stability, and response speed. The findings demonstrate that NLP-based sentiment analysis is effective in supporting the evaluation of Smart City service quality and can serve as a reference for the Medan City Government in improving digital public services. Keywords: natural language processing; sentiment analysis; Sibisa application; smart city; service quality   Abstrak: Kualitas pelayanan Smart City perlu dievaluasi secara berkelanjutan untuk memastikan layanan publik digital mampu memenuhi kebutuhan masyarakat. Penelitian ini bertujuan mengevaluasi kualitas pelayanan Smart City melalui analisis sentimen terhadap ulasan pengguna aplikasi Sibisa Kota Medan menggunakan pendekatan Natural Language Processing (NLP). Penelitian menggunakan metode deskriptif kuantitatif dengan mengumpulkan data ulasan pengguna dari Google Play Store. Data diproses melalui tahapan preprocessing yang meliputi case folding, tokenisasi, stopword removal, dan stemming, kemudian dilakukan klasifikasi sentimen ke dalam kategori positif, negatif, dan netral. Hasil analisis menunjukkan bahwa opini pengguna memberikan informasi mengenai kelebihan dan kekurangan aplikasi Sibisa. Sentimen positif menunjukkan kepuasan pengguna terhadap kemudahan akses dan pelayanan, sedangkan sentimen negatif didominasi oleh keluhan mengenai performa aplikasi, stabilitas sistem, dan kecepatan respons. Penelitian ini menyimpulkan bahwa analisis sentimen berbasis NLP efektif digunakan untuk mengevaluasi kualitas pelayanan Smart City serta dapat menjadi dasar bagi Pemerintah Kota Medan dalam meningkatkan kualitas layanan publik berbasis digital. Kata kunci: analisis sentimen; aplikasi Sibisa; natural language processing; kualitas pelayanan; smart city

Abstract: The increasing number of Umrah pilgrims requires travel agencies to implement data-driven approaches to improve service quality and support Human Resource Management (HRM). This study aims to segment Umrah pilgrims using the K-Means clustering algorithm as a basis for HRM strategies. The research follows the Knowledge Discovery in Databases (KDD) process, including data preprocessing, clustering in RapidMiner, and cluster evaluation using the Elbow Method based on performance distance (average within centroid distance). Euclidean Distance was used to measure similarity among data objects. Seven clustering experiments were conducted with k = 2–8, producing performance distance values of 3418.971, 1416.677, 865.316, 479.795, 344.203, 258.804, and 214.562, respectively. The Elbow curve indicates that k = 3 is the optimal number of clusters because it represents the most significant decrease before the curve stabilizes. The resulting clusters provide objective information for supporting staff placement, service task allocation, pilgrim assistance planning, and employee competency development. Therefore, the integration of K-Means and the Elbow Method offers an effective data-driven approach for supporting HRM decision-making in Umrah travel agencies. Keyword: Elbow Method; Human Resource Management; K-Means Clustering; performance distance; Umrah pilgrims.   Abstrak: Peningkatan jumlah jamaah umrah mendorong biro perjalanan memanfaatkan analisis data untuk meningkatkan kualitas pelayanan dan mendukung pengambilan keputusan pada Manajemen Sumber Daya Manusia (MSDM). Penelitian ini bertujuan melakukan segmentasi jamaah umrah menggunakan algoritma K-Means Clustering sebagai dasar penyusunan strategi MSDM. Metode penelitian mengikuti tahapan Knowledge Discovery in Databases (KDD), meliputi data preprocessing, proses klasterisasi pada RapidMiner, serta evaluasi menggunakan Metode Elbow berdasarkan performance distance (average within centroid distance). Pengukuran kemiripan data dilakukan menggunakan Euclidean Distance. Pengujian dilakukan sebanyak tujuh kali dengan variasi k = 2–8, menghasilkan nilai performance distance berturut-turut 3418,971; 1416,677; 865,316; 479,795; 344,203; 258,804; dan 214,562. Hasil evaluasi menunjukkan bahwa k = 3 merupakan jumlah klaster optimal karena membentuk titik siku (elbow point) dengan penurunan nilai paling signifikan sebelum kurva melandai. Hasil segmentasi dapat dimanfaatkan sebagai dasar penempatan pegawai, pembagian tugas pelayanan, penyusunan tim pendamping jamaah, dan pengembangan kompetensi pegawai secara lebih tepat sasaran.  Kata kunci: jamaah umrah; K-Means Clustering; Manajemen Sumber Daya Manusia; Metode Elbow; performance distance.

Abstract: This study aims to analyze the accessibility of public facilities to the planned Medan Light Rail Transit (LRT) network using a Geographic Information System (GIS)-based spatial approach. Spatial data consisting of LRT corridors, station locations, and public facilities were analyzed using QGIS through buffer and overlay methods. Service coverage was evaluated using radius of 250 m, 500 m, and 750 m. The results show that the number of accessible public facilities increases as the service radius expands. At the 250 m radius, 265 public facilities were covered, increasing to 898 facilities at 500 m and 1,782 facilities at 750 m. The 750 m radius provided the highest accessibility, covering most educational, healthcare, governmental, commercial, and supporting public facilities. These findings indicate that the Medan LRT network has strong potential to improve accessibility to public facilities and support sustainable urban mobility. The results can serve as a reference for transportation planning and the optimization of public transit services in Medan City. Keywords: Accessibility, Geographic Information System, Light Rail Transit, Public Facilities, Spatial Analysis. Abstrak: Penelitian Pembangunan transportasi publik yang efektif memerlukan informasi mengenai sejauh mana layanan transportasi mampu menjangkau berbagai fasilitas publik yang menjadi tujuan aktivitas masyarakat. Penelitian ini bertujuan untuk memetakan jangkauan layanan LRT Medan terhadap fasilitas publik menggunakan Sistem Informasi Geografis (SIG). Data yang digunakan meliputi jalur dan stasiun LRT serta berbagai fasilitas publik, seperti fasilitas pendidikan, layanan kesehatan, pemerintahan, niaga, kantor pos, kantor PLN, kawasan industri, SPBU, dan puskesmas. Analisis dilakukan menggunakan perangkat lunak QGIS melalui metode buffer dan overlay dengan radius 250 m, 500 m, dan 750 m. Hasil penelitian menunjukkan bahwa semakin besar radius jangkauan layanan, semakin banyak fasilitas publik yang dapat dijangkau oleh LRT. Pada radius 250 m terdapat 265 fasilitas publik yang terjangkau, meningkat menjadi 898 fasilitas pada radius 500 m, dan mencapai 1.782 fasilitas pada radius 750 m. Hasil ini menunjukkan bahwa radius 750 m memberikan cakupan layanan yang paling luas terhadap fasilitas publik di Kota Medan. Dengan demikian, LRT Medan memiliki potensi yang baik dalam meningkatkan aksesibilitas masyarakat terhadap berbagai fasilitas publik serta mendukung pengembangan transportasi perkotaan yang lebih efektif dan berkelanjutan. Kata kunci: Aksesibilitas, Analisis Spasial, Fasilitas Publik, Light Rail Transit, Sistem Informasi Geografis