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DIGITAL LIBRARY DEVELOPMENT AT MAN 1 BUKITTINGGI AS AN ACCESSIBILITY CONVENIENCE SUPPORT FOR USERS

Fitria, Erlin, Sabandi, Ahmad, Irsyad, Irsyad, Al Kadri, Hanif, Khomarudin, Agus Nur
Abstract: Abstract: A digital library is a service system that capable in supporting access to information objects automatically using a computer technology. In this study, the authors aimed to develop a digital library application… n based on SLiMS 9 bulian at MAN 1 Bukittinggi library, especially in terms of content with the addition of e-book features, and changing the character of its applications into mobile version, which were previously local (intranet). The methods used were research and development, while system development used the Waterfall model. This study succeeded to develop a digital library application based on SLiMS 9 at MAN 1 Bukittinggi library. The development of the digital library in this study has been carried out through testing, including three types of product tests, namely validity test, practicality test, and effectiveness test, each of which was tested using a questionnaire instrument. The product validity test obtained an average value of 0.88 in the valid category; the product practicality test obtained an average value of 0.90 in the very practical category; and the product effectiveness test obtained an average value of 0.94 in the high effectiveness category. Based on the product test results that have been described, the digital library development product in this study was declared feasible and applicable as a digital library, and can be accessed via mobile by users, such as students, teachers, and library members of MAN 1 Bukittinggi.          Keywords: Digital Library; Mobile Application; Research and Development; SLiMS 9   Abstrak: Perpustakaan digital merupakan sebuah sistem yang memiliki layanan yang mendukung akses objek informasi secara otomasi menggunakan teknologi komputer. Dalam studi ini, peneliti bermaksud mengembangkan aplikasi perpustakaan digital berbasis SLiMS 9 bulian pada perpustakaan MAN 1 Bukittinggi, khususnya dari sisi content-nya dengan penambahan fitur e-book, serta mengubah sifat aplikasinya menjadi bersifat mobile, yang mana sebelumnya bersifat lokal (intranet). Metode dalam studi ini adalah penelitian dan pengembangan, sedangkan pengembangan sistem dilakukan menggunakan model Waterfall. Penelitian ini berhasil mengembangkan aplikasi perpustakaan digital berbasis SLiMS 9 pada perpustakaan MAN 1 Bukittinggi. Pengembangan perpustakaan digital dalam penelitian ini telah dilakukan melalui pengujian, meliputi tiga jenis uji produk, yaitu uji validitas, uji praktikalitas, dan uji efektivitas, yang setiap pengujiannya dilakukan menggunakan instrumen angket. Uji validitas produk memperoleh nilai rerata 0,88 dengan kategori Valid; uji praktikalitas produk memperoleh nilai rerata 0,90 dengan kategori Sangat Praktis; dan uji efektivitas produk memperoleh nilai rerata 0,94 dengan kategori Efektivitas Tinggi. Berdasarkan hasil uji produk yang telah diuraikan, produk pengembangan perpustakaan digital dalam penelitian ini dinyatakan layak dan dapat diterapkan sebagai perpustakaan digital, serta dapat diakses secara mobile oleh para pengguna, yaitu siswa, guru, dan anggota perpustakaan MAN 1 Bukittinggi. Kata kunci: Aplikasi Mobile; Perpustakaan Digital; Penelitian dan Pengembangan; SLiMS 9

DESAIGN AND SIMULATION OF ADC CIRCUITS COMPILED BY IC ADC0804 AND IC ADC0809

Amril, Muhammad, Sihombing, Panangian Mahadi, Sukarwoto, Sukarwoto
Abstract: Abstract: Medan Aviation Polytechnic is one of the campuses under the ministry of transportation which has a major in telecommunication and air navigation engineering in Indonesia. Based on field surveys, an Analog to Digital… gital Converter (ADC) practicum kit is needed to improve the ability of cadets. Based on this background, this study aims to design and simulate two ADC circuits, each of which is compiled by the integrated circuit (IC) ADC0804 and IC ADC0809 respectively. Three statistical formulas, namely mean error (ME), standard deviation error (SDE), and root mean square error (RMSE) are used to measure the performance of the two ADC circuits. Both ADC circuits are simulated using a Proteus 8.11 Simulator with 255 analog input voltages. Based on the result of the study, it is known that the ADC circuit compiled by IC ADC0809 is more accurate than the ADC circuit compiled by IC ADC0804. This is evidenced by a smaller error value, which is based on the simulation results of the ME, SDE, and RMSE values were 0.4210, 0.3410, and 0.5110, respectively. And, based on the measurement results, it has ME, SDE, RMSE respectively, namely 0.8510, 0.8110, and 0.9310.             Keywords: ADC; Proteus 8.11 Simulator; IC ADC0804; IC ADC0809; ME; SDE; RMSE     Abstrak: Politeknik Penerbangan Medan adalah salah satu kampus di bawah Kementerian Perhubungan yang memiliki jurusan teknik telekomunikasi dan navigasi udara di Indonesia. Berdasarkan survei di lapangan, kit praktikum konverter analog ke digital diperlukan untuk meningkatkan kemampuat taruna. Berdasarkan latar belakang tersebut, penelitian ini bertujuan merancang dan mensimulasi dua rangkaian ADC yang masing-masing disusun oleh IC ADC0804 dan IC ADC0809. Tiga formula statistik, yaitu mean error (ME), standard deviation error (SDE), and root mean square error (RMSE) digunakan untuk mengukur kinerja kedua rangkaian ADC tersebut. Kedua rangkaian ADC tersebut disimulasi menggunakan Simulator Proteus 8.11 dengan 255 tegangan masukan analog. Berdasarkan hasil penelitian diketahui bahwa rangkaian ADC yang disusun oleh IC ADC0809 lebih akurat dibandingkan dengan rangkaian ADC yang disusun oleh IC ADC0804. Hal tersebut dibuktikan dengan nilai kesalahan yang lebih kecil, yaitu berdasarkan hasil simulasi memiliki ME, SDE, RMSE masing-masing adalah 0,4210, 0,3410 dan 0,5110. Dan berdasarkan hasil pengukuran memiliki ME, SDE, dan RMSE masing-masing adalah 0,8510, 0,8110, dan 0,9310.   Kata kunci: ADC; Simulator Proteus 8.11; IC ADC0804; IC ADC0809; ME; SDE; RMSE

UTILIZATION OF BOOSTER CIRCUIT JOULE THIEF FOR GARDEN LIGHTING SOURCE OF VOLTAGE FROM THE SUN

Ananda, Ricki, Amin, Muhammad
Abstract: Abstract: Garden lighting from a sun source utilizes a series of joule thieves so that the lighting of the garden lights at night is bright. This research method uses a quantitative method because it must be tested on each&#8230; ch module so that it finds that there are three types of module systems to be combined, the booster or joule electronic thief module, the supply media solar module circuit, and finally, the control system with the Arduino nano board. The solar module used is a 1-watt solar module with 1n4004 diodes, which will convert the heat of sunlight into voltage. The voltage will be sent via the IC TP4056 input, the output from the IC TP4056 will charge the 18650 battery, which aims to ignite the booster circuit on the 12 W lamp, or the 3.7VDC input from the 18650 battery capable of turning on the 12W/220VAC led light. While the controller is connected to the LDR sensor and relay when the user makes the command, LDR > 800 of the provisions, the relay position from NC becomes open, or during the day, the relay will be in the NC position and turn off the 12W light in the booster circuit, while at night the relay will remain in the no position, so that it will connect the booster circuit voltage and turn on the 12W lamp (LDR < 800). Keywords: booster circuit; campus park lighting; solar panels   Abstrak: Penerangan taman dari sumber matahari memanfaatkan rangkaian joule thief agar penerangan lampu taman pada malam hari terang. Metode penelitian ini menggunakan metode kuantitatif dikarenakan harus diuji coba pada tiap modul, sehingga mendapati ada tiga jenis sistem modul yang akan digabungkan, modul elektronika rangkaian booster atau joule thief, rangkaian modul surya media pensuplly, dan terakhir sistem controller dengan board arduino nano. Modul surya yang digunakan modul surya 1 watt dengan dioda 1n4004, akan mengubah panas cahaya matahari menjadi tegangan . Tegangan akan dikirimkan melalui input IC TP4056, output dari IC TP4056 akan mengisi baterai 18650 yang bertujuan sebagai penyala rangkaian booster pada lampu 12 W, atau input 3.7VDC dari baterai 18650 mampu menyalakan lampu led 12W/220VAC. Sementara controller terhubung kesensor ldr dan relay, ketika perintah yang dibuat oleh user, ldr > 800 dari ketentuan, posisi relay dari nc menjadi open, atau siang hari, relay akan diposisi nc dan mematikan lampu 12W pada rangkaian booster, sementara jika malam hari relay akan diposisi no, sehingga akan menghubungkan tegangan rangkaian booster dan menyalakan lampu 12W (ldr < 800).   Kata kunci : panel surya, penerangan taman, rangkaian booster.  

PERANCANGAN PROSES PRA PRODUKSI FILM ANIMASI 3D LEGENDA PUTRI MERAK JINGGA

Mulyani, Neni
Abstract: Abstrack:To produce a 3D animated film requires a long process flow so that the processing time of manufacture is also prolonged. This is a constraint in the development of the local animation film in Indonesia for a long&#8230; g time will lead to high production costs making it difficult to compete commercially with animated films from abroad who have abundant funds and the support of various parties in the country. Therefore, efforts to improve the competitiveness of local animated film and one of these efforts is by analyzing the stages of the manufacturing process and apply it to the process of making the actual 3D animated film.In general there are three stages of the filmmaking process, namely the 3D animation pre-production, production and post-production. Although this time the animation industry in Indonesia has not been detailed separates each of these stages, but still be important for designing detail the activities of these stages, in order to see the strengths and weaknesses of each process that existed at that stage. Therefore, this study was conducted with the hope to provide recommendations to improve the local animation industry.   Keywords: 3D Animation, Animation Film Pre-Production Stage, Princess Peacock Orange    Abstak: Untuk menghasilkan sebuah film animasi 3D membutuhkan alur proses yang panjang sehingga waktu pembuatannya juga berlangsung lama. Ini yang menjadi kendala dalam perkembangan film animasi lokal di Indonesia karena waktu yang yang panjang akan mengakibatkan tingginya cost production sehingga sulit untuk bersaing secara komersial dengan film animasi dari luar negeri yang memiliki dana berlimpah dan dukungan dari berbagai pihak di negaranya. Untuk itu diperlukan upaya untuk meningkatkan daya saing film animasi lokal dan salah satu upaya tersebut adalah dengan menganalisa tahapan-tahapan proses pembuatan dan menerapkannya pada proses pembuatan film animasi 3D yang sebenarnya.Secara umum ada 3 tahapan proses pembuatan film   animasi 3D yaitu  pra produksi, produksi dan paska produksi. Meskipun saat ini industri animasi di Indonesia belum secara detail memisahkan setiap tahapan tersebut, namun tetap menjadi penting untuk merancang detail aktifitas dari tahapan tersebut, dengan tujuan untuk melihat kekuatan dan kelemahan dari setiap proses yang ada pada tahapan tersebut.   Kata Kunci: Animasi 3D, Tahap Pra Produksi Film Animasi, Putri Merak Jingga  

KLASTERISASI DATA JAMAAH UMROH PADA AULIYA TOUR & TRAVEL MENGGUNAKAN METODE K-MEANS CLUSTERING

Iqbal, Muhammad
Abstract: Abstract: Religious tourism especeeially for Hajj and Umroh is increasingly in demand by the public. Auliya Tour & Travel, which is engaged in the travel agency, has diverse pilgrimage data so that the data collection is&#8230; used to find new knowledge as a marketing strategy using Data Mining techniques. Data Mining is one of the KDD processes that has the function for grouping. K-Means Clustering is a data mining technique that aims to group data into a data subset. The grouping of data on Umroh pilgrims is conducted to find out the interest groups of pilgrims based on age. This study categorizes pilgrim data into three clusters, which are very popular, in high demand and less desirable. Attributes used in processing data include gender, age, and congregation package. Before the data calculation process is carried out, the data transformation process is carried out before data calculation process. Based on data calculations that have been done through the RapidMiner software, the members of the group were very interested, ranging in age from 56 to 83 years, interested groups ranging in age from 29 to 55 years and the group was less interested with an age range 2 to 22 years from 170 records.   Keywords: Clustering, Data Mining, K-Means, RapidMiner, Umroh.                 Abstrak: Perjalanan wisata religi khususnya untuk ibadah haji dan umroh semakin diminati masyarakat. Auliya Tour & Travel yang bergerak pada bidang biro perjalanan memiliki data jamaah yang beragam sehingga kumpulan data tersebut dimanfaatkan untuk menemukan pengetahuan yang baru sebagai strategi pemasaran dengan menggunakan teknik Data Mining. Data Mining merupakan salah satu proses dari KDD yang fungsi salah satunya untuk pengelompokan. K-Means Clustering merupakan salah satu teknik Data Mining yang bertujuan untuk mengelompokkan data ke dalam subset data. Pengelompokan data jamaah umroh dilakukan bertujuan untuk mengetahui kelompok minat jamaah berdasarkan usia. Penelitian ini mengelompokkan data jamaah menjadi tiga cluster yaitu sangat diminati, diminati dan kurang diminati. Atribut yang digunakan dalam pengolahan data meliputi jenis kelamin, usia, dan paket jamaah. Sebelum proses perhitungan data dilakukan terlebih dahulu dilakukan proses transformasi data. Berdasarkan perhitungan data yang telah dilakukan melalui software RapidMiner diperoleh anggota kelompok sangat diminati dari rentang usia mulai 56 sampai 83 tahun, kelompok diminati dengan rentang usia mulai 29 sampai 55 tahun dan kelompok kurang diminati mulai usia 2 sampai 22 tahun dari 170 record.   Kata Kunci: Clustering, Data Mining, K-Means, RapidMiner, Umroh

The Effect Of Giving Manure Type Growth Regulators On The Vegetative Phase Of Chili Plants (Capsicum Frutescens)

Uni Savira, Hilda Pratiwi, Mizan Maulana
Abstract: Cayenne pepper (Capsicum frutescens L.) is a horticultural commodity with high economic value and continuously increasing market demand. The success of cayenne pepper production is largely determined by vegetative growth&#8230; in the early stages, which is influenced by the availability of nutrients and plant growth regulators. The use of manure as a source of organic matter and natural Plant Growth Regulators (PGRs) is expected to enhance vegetative growth. This study aimed to determine the effect of manure application and natural PGRs on the vegetative growth of cayenne pepper and to identify the treatment that produces the best growth.The research was conducted from December to January 2026 at the land of the Kopbun Suka Tani Sejahtera Business Research Center, Kota Juang District, Bireuen Regency. The study used a factorial Randomized Block Design (RBD) with a 4 × 3 pattern and three replications. The first factor was the dosage of manure consisting of 0 kg (control), 1 kg, 1.5 kg, and 2 kg per plant. The second factor was the type of natural PGR, consisting of shallot extract, rice water, and coconut water. The observed parameters included plant height, number of leaves, leaf width, and number of branches at 15, 30, and 45 days after planting (DAP). Data were analyzed using the F-test and continued with the Honestly Significant Difference (HSD) test at a 5% significance level if the results were significant.The results showed that manure application had no significant effect on all vegetative growth parameters up to 45 DAP. The application of natural PGRs also showed no significant effect at 15, 30, and 45 DAP, as well as on other parameters. There was no significant interaction between manure and natural PGRs on all observed parameters.

The Effect of Manure Dosage and Types of Plant Growth Regulators (PGRs) on the Generative Phase of Bird’s Eye Chili (Capsicum frutescens L)

Putri Rizkia, Hilda Pratiwi, Mizan Maulana
Abstract: This study aims to determine the effect of manure dosage and types of plant growth regulators (PGRs), as well as their interaction, on the generative phase of bird’s eye chili plants (Capsicum frutescens L.) in order to&#8230; o improve productivity, which remains fluctuating due to suboptimal cultivation practices. The research was conducted from February to March 2026 at the experimental field of the Pusat Riset Bisnis Kopbun Suka Tani Sejahtera, Kota Juang District, Bireuen Regency, using a factorial Randomized Block Design (RBD) of 4 × 3 with three replications. The first factor was the dosage of manure (control, 1 kg/plant, 1.5 kg/plant, and 2 kg/plant), while the second factor was the type of natural PGR (onion extract, rice water, and coconut water). Data were collected through direct observations on several parameters, including number of fruits, fruit weight, fresh biomass weight, root fresh weight, and root length, and were then analyzed to determine the effects of treatments and their interactions.          The results showed that certain doses of manure had a significant effect on increasing yield and root growth, while natural PGRs were able to enhance flowering, reduce flower drop, and accelerate fruit formation. The interaction between both treatments indicated that the optimal combination produced higher results compared to single treatments. The novelty of this study lies in the use of a combination of manure and natural PGRs based on local materials as a strategy to improve the generative phase. The implications of this research are expected to serve as a scientific reference for the development of sustainable cultivation techniques, as well as learning material and further research in the fields of agronomy and horticulture.

Differences in Growth and Yield Responses of Several Cayenne Pepper (Capsicum frutescens L.) Varieties in Cocoa (Theobroma cacao L.) Interrows

Nazatul Bairia, Hilda Pratiwi, Mizan Maulana
Abstract: This study aimed to analyze the response of several cayenne pepper varieties (Capsicum frutescens L.) on the growth and yield of cayenne pepper cultivated in the cocoa (Theobroma cacao L.) alley cropping system. The research&#8230; arch was conducted from April to July 2025 at Mon Jambe Village, Jeumpa District, and the Kopbun Suka Tani Sejahtera Business Research Center, Kota Juang District, Bireuen Regency. The experiment employed a Randomized Block Design (RBD) with four varieties as treatments and three replications, resulting in 12 experimental units. The tested varieties were Rajo, Genie, Bara, and Tetra Hijau. Data were collected through observations of plant height, number of leaves, number of fruits, fruit weight, and fresh biomass weight, and were analyzed using analysis of variance (ANOVA) to determine differences among treatments. The results showed that the varietal factor had a highly significant effect on leaf number and a significant effect on fruit number and fruit weight. The Bara variety exhibited the most adaptive and productive performance under the cocoa alley cropping system, as indicated by superior vegetative growth and yield compared to other varieties. The novelty of this study lies in emphasizing that varietal selection is a key factor in optimizing the utilization of cocoa alley spaces for cayenne pepper cultivation. These findings are expected to provide a scientific basis for developing cayenne pepper cultivation technologies in cocoa alley systems and to serve as a reference for further research on adaptive variety development under such environmental conditions.

Implementation of Justice Collaborators’ Rights in Obtaining Reduced Sentences in Murder Cases

Dany Ardiansah Putra, Siti Marwiyah, Sukmana Dumayanti, Hartoyo, Bachrul Amiq
Abstract: The rights of justice collaborators (JCs) to obtain sentence reductions in murder cases remain inconsistently applied within Indonesia’s criminal justice system. This research addresses three core issues: the normative legal&#8230; legal basis for JC rights, the consistency of judicial decisions in granting those rights, and the necessity for legal reform. Using a normative juridical approach supported by document analysis and expert interviews, the study examines Law No. 31/2014, SEMA No. 4/2011, and recent judicial decisions, including the high-profile cases of Richard Eliezer and Abdul Khoir. Findings reveal that while legal provisions exist, the absence of detailed indicators, formal mechanisms for status determination, and binding multi-institutional coordination leads to implementation gaps. Judicial discretion remains unchecked, resulting in unequal treatment of justice collaborators with similar contributions. The study concludes that a lex specialis law is urgently needed to standardize definitions, evaluation mechanisms, and inter-agency protection schemes. Recommendations include harmonization of technical norms, incorporation of JC recognition in verdicts, and alignment with UNCAC and UNTOC standards. This would strengthen legal certainty, uphold the principle of nulla poena sine lege, and enhance the effectiveness of the criminal justice system in addressing serious crimes through systemic cooperation.

Principles of Emotions Affecting Learning and Social Learning in Elementary School

Resyi Abdul Gani, Asep Supena
Abstract: This study aims to develop a comprehensive constellation model and identify optimal strategies for strengthening lecturers’ professional commitment in the largest private universities in Bogor. Penelitian ini mengkaji secara&#8230; secara mendalam bagaimana emosi dan belajar sosial memengaruhi proses pembelajaran di sekolah dasar melalui perspektif neuropedagogik dan brain‑based learning. A mixed methods approach was used by combining quantitative analysis (meta-analysis of 173 respondents and 47 indicators of NP, EC, OB, MS, BS) and descriptive qualitative analysis using thematic analysis techniques on semi-structured interviews with five elementary school teachers. The meta-analysis results showed a very strong average effect of the latent construct relationship (t(128) = 12.92; p < 0.001; r ≈ 1.00) with almost zero heterogeneity (Qₑ(128) = 1.67; τ² = 0; I² = 0%), and no significant moderating effects were found for all indicators; the partial meta-regression coefficients for all items were very close to zero and the R² value was 0.000. Qualitatively, three main themes emerged: (1) positive emotions as the foundation of learning readiness, (2) social interaction as a reinforcement of meaning formation, and (3) contextual learning that integrates cognitive, emotional, and social dimensions. Although most teachers have not yet mastered the concepts of neuropedagogy and brain-based learning theoretically, they have intuitively implemented its principles through motivation, praise, humor, group work, collaborative projects, and learning experiences relevant to students' real lives. These findings support the latest theory that places emotions and social interactions as the main drivers of brain function in learning (Immordino Yang, 2016; Tyng et al., 2017; Vygotsky, 1978; Jensen, 2008), and emphasizes the importance of strengthening teachers' competence in understanding and designing brain- and emotion-based learning to support the holistic development of elementary school students.