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Menampilkan 1–10 dari 454 artikel
Grouping of Student Attendance Discipline Levels Based on Daily Attendance Data Using the K-Means Algorithm
Putri, Syahwa Mutiara
; Rahmawati, Anita
; Bella, Alfina Chintya
; Gurowo, Damar Aji
; Arifin, Muhammad
; Putri, Syahwa Mutiara
; Rahmawati, Anita
; Bella, Alfina Chintya
; Gurowo, Damar Aji
; Arifin, Muhammad
Kedisiplinan kehadiran siswa merupakan aspek penting dalam proses pembelajaran karena mencerminkan partisipasi, tanggung jawab, dan kepatuhan terhadap aturan sekolah. Namun, data absensi sering kali hanya diperlakukan sebagai catatan administratif dan jarang dianalisis untuk mengidentifikasi pola keterlambatan yang berulang. Penelitian ini bertujuan untuk mengelompokkan pola keterlambatan siswa berdasarkan data absensi harian menggunakan algoritma K-Means guna memberikan gambaran yang lebih ters...
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MORPHOLOGICAL CHARACTERIZATION OF BRAIN TUMOR TISSUE IN MRI IMAGES USING CNN AND TRANSFER LEARNING
Hilmi, Dafa Fadhilah
; Wibawa, Aji Prasetya
; Agustavada, Ardha Ardhana Putra
; Sholum, Abdullah
; Dwiyanto, Felix Andika
This study evaluates the role of computational pattern recognition as an observational method for analyzing morphological characteristics of brain tumor tissue in MRI data. A total of 6,056 labeled MRI images, including glioma, meningioma, and pituitary tumor cases, were examined. The images were standardized to maintain uniform structural representation and processed using three convolutional-based architectures: a baseline CNN, MobileNetV2, and EfficientNet-B0. Model performance was assessed u...
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Microencapsulation of Phycocyanin from Spirulina platensis by Freeze-Drying: Optimization of Maltodextrin–Soy Protein Matrices for Enhanced Stability and Antioxidant Functionality
Marlina, Dian
; Saputra, Ryan Werytama
; Aji Prasetyo, Takad Bagas
; Muhamad Ansory, Hery
; Aisiyah, Siti
; Purwaningsih, Desi
Phycocyanin, a natural blue pigment from Spirulina platensis, exhibits strong antioxidant activity but is highly unstable under light, heat, and pH variations, limiting its practical applications. This experimental study addresses the lack of systematic optimization data on maltodextrin–soy protein isolate (SPI) wall matrices for phycocyanin microencapsulation via freeze-drying. Phycocyanin was extracted using phosphate buffer and encapsulated at different maltodextrin:SPI ratios (9:1, 8:2, and...
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Morphological and genetic identifications of Spirulina based on 16S rRNA gene
Spirulina is a microalga with spiral or linear trichome shapes that has potential in industrial and food sectors due to its rich nutritional content. Spirulina can live in various aquatic habitats with different environmental conditions. Differences in cultivation environments can affect the morphological characteristics of Arthrospira due to phenotypic plasticity, making morphology-based identification prone to errors. Therefore, molecular identification using the 16S rRNA gene for phylogenetic...
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Analysis for Non-covalent Bonds in Protein Structures Using the DV-Xα Method
Halogen atoms are increasingly recognized for their ability to form non-covalent halogen bonds in protein–ligand complexesy. To systematically evaluate these interactions, we employed the DV-Xα method to calculate bond overlap populations (BOPs) in protein structures containing halogenated ligands. Using the Protein Data Bank, we identified thousands of entries with fluorine, chlorine, bromine, or iodine atoms. Structural coordinates were extracted around the chlorine atoms of the ligand and sub...
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The Effect of Career Development and Performance Awards on Employee Loyalty with Job Satisfactionas an Intervening VariableAt the Regional Secretariat of Pekalongan Regency
Proceeding. of The International Conference on Business and Economics
Vol 4
, No 1
(2026)
This study aims to examine the influence of career development and work environment on employee performance through work awards as an intervening variable in the regional secretariat of Pekalongan Regency This research was conducted by a survey method of employees with job satisfaction as an intervening variable in the regional secretariat of Pekalongan Regency The sampling technique used in this study was a census of 56 respondents. Data collection through the dissemination of questionnaires, d...
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From Institutional Sustainability to Human Behavioral Engagement: An Adaptive Governance Perspective in the Mining Sector – A Literature Review
Proceeding. of The International Conference on Business and Economics
Vol 4
, No 1
(2026)
The mining sector is widely recognized as a high-risk industry characterized by complex social, environmental, and organizational challenges. In response, sustainability governance in mining has predominantly relied on institutional mechanisms such as regulations, voluntary standards, and sustainability reporting frameworks. However, growing evidence indicates that these approaches often fail to generate substantive sustainability outcomes because they insufficiently address human and organizati...
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Arduino-Based Automatic Water Salinity Control System Using A Gravity TDS Sensor
Putri, Widya Maharani
; Syahrir
; Nurhanafi, Kholis
; Putri, Devina Rayzy Perwitasari Sutaji
; Zarkasi, Ahmad
; Ummah, Auliya Rahmatul
Lontar Physics Today
Vol 5
, No 1
(2026)
Water salinity is one of the water quality parameters that plays an important role in maintainng aquatic enviromental conditions. Instability in salinity levels can degrade water quality. Therefore, an automatic and continuous control system is required. This study aims to design and implement an Arduino-based automatic water salinity control system using a Gravity Total Dissolved Solid (TDS) sensor. The research methods include hardware and software design, sensor calibration, and system testin...
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Pengaruh Latihan Imagery dan Shootlock Terhadap Akurasi Tendangan Sepak Bola di SSB Persisac U-14
Jendela Olahraga
Vol 11
, No 01
(2026)
Penelitian ini bertujuan untuk menganalisis pengaruh penerapan latihan imagery dan penggunaan alat bantu shootlock terhadap peningkatan akurasi tendangan pada pemain sepak bola. Permasalahan dalam penelitian ini adalah rendahnya akurasi tendangan yang menyebabkan banyak peluang emas terbuang, serta kejenuhan pemain terhadap metode latihan yang monoton. Penelitian menggunakan pendekatan kuantitatif dengan desain pretest dan posttest. Subjek penelitian berjumlah 22 pemain yang seluruhnya diberikan...
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Design Agricultural Drone System Based on IT Governance using TOGAF Approach
Pramurwitasari, Anugrahaningtyas
; Khoiru Nisa, Maulida
; Malikul Rahman, Sigmawan
; Muhammad Fadhil, Taqy
; Najich, M. Narjun
Jurnal Riset Sistem dan Teknologi Informasi
Vol 4
, No 1
(2026)
Agricultural modernization in Indonesia faces challenges such as labor constraints, fertilizer efficiency, and low adoption of information systems. Agricultural drone technology offers innovative solutions, but structured implementation based on IT governance remains limited. This study used a descriptive qualitative approach to design a drone system based on the TOGAF ADM enterprise architecture. Data were collected through observations, semi-structured interviews, technical documentation, and...
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