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Kopi merupakan salah satu komoditas unggulan subsektor perkebunan di Indonesia yang dapat bersaing kualitasnya secara global, sehingga kopi memiliki peran cukup strategis dalam perekonomian nasional. Hingga saat ini kebutuhan kopi menunjukkan kecenderungan positif, tidak saja kebutuhan domestik akan tetapi juga kebutuhan dunia yang meningkat dengan laju peningkatan konsumsi kopi 14% setiap tahunnya. Jenis kopi yang banyak diusahakan di Indonesia adalah kopi Robusta dengan luasan hampir 77%. Kopi merupakan produk pertanian yang mengandalkan aspek mutu dan cita rasa. Mutu dan cita rasa kopi dipengaruhi oleh banyak faktor, salah satu faktor yang berpengaruh adalah ketinggian tempat tanam. Ketinggian tempat tanam yang tepat akan berpengaruh terhadap mutu dan cita rasa kopi, untuk itu dilakukan uji citarasa Kopi Robusta berdasarkan ketinggian tempat penanaman. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan empat (4) perlakuan berdasarkan ketinggian lokasi penanaman kopi Robusta : Ketinggian lokasi penanaman 650; 750; 379; dan 545 m dpl.  Metode pengujian yang digunakan adalah cupping test yang mengikuti kaidah SCA (Specialty Coffee Association) dengan melibatkan 20 orang panelis, terdiri dari 3 orang panelis terlatih seperti barista dan roaster serta 17 orang panelis semi terlatih.  Hasil pengujian citarasa seduhan memperlihatkan bahwa total skor untuk kopi Robusta asal ketinggian lokasi penanaman 650 m dpl (K1) menunjukkan nilai tertinggi yaitu sebesar 78,86; disusul kopi Robusta asal ketinggian lokasi penanaman 545 m dpl (K4) mendapatkan nilai skor 77,37, Kopi Robusta asal ketinggian lokasi penanaman 379 m dpl  (K3) dengan total skor 76,95 dan nilai terendah pada kopi Robusta asal ketinggian lokasi penanaman 750 m dpl (K2) dengan total skor sebesar 71,38. Kopi Robusta yang dipanen dari berbagai ketinggian tempat penanaman masih belum termasuk kriteria kopi spesialti.

Buah rambutan, salak, duku dan manggis termasuk ke dalam jenis buah musiman yang mencerminkan keanekaragaman hayati di Indonesia. Penelitian ini bertujuan untuk mengidentifikasi karakteristik fisik dan kimia pada beberapa buah musiman lokal. Metode yang digunakan melibatkan pengamatan langsung terhadap parameter fisik seperti warna, rasa, berat, kekerasan, dan persentase bagian yang dapat dimakan. Parameter kimia yang diamati meliputi nilai pH, kadar padatan terlarut, dan total asam titrasi. Hasil pengamatan menunjukkan variasi yang signifikan terhadap keempat buah musiman yang diamati. Setiap buah memiliki keunikan secara tampilan fisik dan kandungan kimia yang khas. Studi ini penting dilakukan untuk memahami perbedaan terhadap citra rasa, kualitas, dan nilai gizi sebagai alternatif buah konsumsi dengan harga yang terjangkau. Oleh karena itu, pemanfaatan dan konsumsi buah musiman lokal perlu terus didorong untuk mendukung kesehatan masyarakat dan keberlanjutan agrikultur lokal.

Penelitian ini dilatar belakangi oleh banyaknya limbah makanan di Indonesia serta kurangnya kesadaran dan pemahaman masyarakat mengenai pengelolaan limbah makanan. Sampah makanan akan selalu menjadi masalah lingkungan yang berkepanjangan jika tidak dilakukan upaya mengatasinya. Penelitian ini bertujuan untuk melakukan analisis terhadap berbagai metode manajemen sampah makanan (food waste) agar dapat meningkatkan kesadaran masyarakat mengenai food waste. Metode penelitian yang diterapkan adalah systematic literature review dengan menggunakan diagram PRISMA sebagai alat untuk seleksi data dari literatur yang telah terkumpul. Data diambil dari database Google Scholar dan dipilih serta dianalisis sesuai dengan kriteria yang telah ditentukan. Proses pengumpulan data dilakukan dengan mencari sumber yang relevan menggunakan kata kunci "food waste management". Hasil analisis literatur menunjukkan Implementasi metode seperti Bank Makanan, literasi sampah, dan program 3R (Reduce, Reuse, dan Recycle) diharapkan dapat menciptakan lingkungan yang sehat, ramah, dan berkelanjutan. Implementasi dan keberlanjutan pengelolaan limbah dapat berjalan baik apabila melibatkan partisipasi aktif dari berbagai pihak, mulai dari pemerintah, masyarakat sipil, dan kolaborasi antar berbagai pihak. Peran masyarakat sangat diperlukan dalam mendukung pengelolaan limbah makanan, melalui literasi, edukasi, dan implementasi konsep 3R, masyarakat dapat lebih sadar akan dampak lingkungan dari pemborosan makanan dan akumulasi sampah.

Teknologi blockchain menawarkan solusi inovatif untuk meningkatkan transparansi, efisiensi, dan keamanan dalam sektor pertanian. Penelitian ini mengkaji potensi dan tantangan implementasi teknologi blockchain di sektor pertanian melalui meta-analisis sepuluh jurnal. Hasil penelitian menunjukkan bahwa blockchain dapat memfasilitasi pelacakan produk secara real-time, mengurangi penipuan, dan meningkatkan manajemen persediaan. Studi kasus pada rantai pasok produk organik mengungkapkan bahwa blockchain memungkinkan konsumen memverifikasi asal produk, meningkatkan kepercayaan, dan membantu petani mendapatkan harga yang lebih baik. Integrasi blockchain dengan Internet of Things (IoT) dan kecerdasan buatan (AI) juga menunjukkan potensi besar dalam meningkatkan produktivitas dan efisiensi. Namun, tantangan utama seperti kurangnya pengetahuan petani dan biaya implementasi yang tinggi perlu diatasi melalui pelatihan, dukungan teknis, dan kolaborasi antara pemerintah, lembaga pendidikan, dan sektor swasta. Proyek percontohan di beberapa wilayah menunjukkan keberhasilan awal, dan pengembangan lebih lanjut akan meningkatkan adopsi teknologi ini. Kesimpulannya, dengan dukungan yang tepat, blockchain memiliki potensi untuk merevolusi sektor pertanian, meningkatkan kesejahteraan petani, dan menjamin kualitas produk bagi konsumen. Implementasi yang sistematis dan kolaboratif akan memastikan bahwa teknologi ini dapat memberikan manfaat jangka panjang bagi seluruh pemangku kepentingan dalam rantai pasok pertanian.

Penelitian ini bertujuan untuk menganalisis edible film dan edible coating sebagai alternatif pengganti kemasan sintetis. Metode penelitian yang digunakan adalah Systematic Literature Review untuk memilih data dari literatur yang tersedia. Data diambil dari berbagai sumber literatur yang ditemukan melalui situs web jurnal internasional seperti Sciencedirect, Google Scholar, PubMed, Wiley, dan Elsevier. Edible film dan edible coating merupakan lapisan makanan yang terbuat dari bahan-bahan yang dapat dikonsumsi, berfungsi sebagai penghalang terhadap gas, kelembaban, melindungi produk makanan, dan memperpanjang umur simpan. Edible film dan edible coating dapat menggantikan bahan kimia sintetis yang berbahaya. Bahan pembuatannya dikelompokkan menjadi polisakarida, lipid, dan protein, dengan berbagai sifat yang berbeda-beda. Metode produksi meliputi solvent casting dan extrusion method untuk edible film, serta metode pencelupan dan penyemprotan untuk edible coating. Penerapannya beragam sebagai alternatif kemasan sintetis dalam industri pangan, mengurangi limbah plastik dan polusi global, serta memberikan dampak positif bagi lingkungan dan kesehatan manusia. Hasil dari penelitian ini menunjukkan bahwa edible film dan edible coating memiliki potensi besar sebagai pengganti kemasan sintetis.

As the world of culinary creation develops, there are many food product innovations that, apart from being snacks, also contain the nutrients needed by the body. One of these foods is a snack bar. Snack bars are made to be a reliable source of high quality protein, fiber, vitamins and minerals and usually consumed by dieters for daily consumption or as snacks at certain times. Purple sweet potatoes and bananas are two food ingredients that are easy to get, especially in Indonesia, including Surakarta. These two food ingredients are usually processed for daily use because of their affordable prices, but most of them are traditional foods. This research aims to determine the process of making purple sweet potatoes and bananas into snack bars and find out respondents' opinions regarding this innovative snack bar product. The research methodology uses a qualitative method with an interview approach which is expressed descriptively using a questionnaire. The results of the research stated that the snack bar recipe formula was successful in finding the main raw materials of purple sweet potato and banana which were liked by respondents. The advice given is to improve the texture and durability of the finished snack bar product.

The paper evaluates potential applications of blockchain technology in enhancing the security and reliability of Wireless Sensor Networks (WSNs). The existing vulnerabilities in WSNs, such as concerns regarding data integrity and security, demand innovative security solutions. Through systematic analysis, this paper provides valuable insights to expand understanding of WSNs security, explaining the feasibility and benefits of deploying blockchain technology. Possible attacks in the networks are classified to point out either risks or potential solusions to protect the networks. By exploring the integration of Blockchain within WSNs, the paper highlights its potential to minimize various security risks. In addition, this work discusses the challenges and considerations associated with implementing Blockchain in WSNs. Overall, this paper contributes on securing WSNs and underscores the role of blockchain technology as a promising way for enhancing security of WSNs.

Penelitian ini pembahasan tentang persepsi guru madrasah Aliyah tentang impelemtasi asesmen nasional berbasis komputer (ANBK) di Madrasah Aliyah An-Nuur Trisono. Tujuan dari penelitian ini untuk mengidentifikasi pandangan guru Ma terkait dengan pengetahuan program ANBK, hambatan yang terjadi saat pelaksanaan ANBK dan pemanfaatan hasil ANBK. Penelitian ini merupakan penelitian kualitatif deskritif. Data didapatkan melalui wawancaran dan dokumentasi. Analisis data dilakukan dengan reduksi data yakni mendeskripsikan semua hasil dari wawancara dan disajikan dalam bentuk narasi serta menarik kesimpulan. Hasil penelitian menunjukkan bahwa guru telah mengetahui tentang ANBK meskipun dalam pelaksanaannya masih terdapat hambatan yakni komputer, jaringan, server dan kesiapan siswa yang kurang. Selain itu, hasil dari program ANBK sudah dimanfaat oleh para guru dan berdampak positif bagi siswa yakni minat siswa kunjungan ke perpustakaan serta pemahaman siswa akan pengetahuan literasi dan numerasi  menjadi meningkat. Diharapkan adanya perbaikan untuk mengurangi hambatan saat pelaksanaan ANBK terutama peningkatan sarana dan prasarana yakni pengadaan jumlah komputer dan adanya program sosialisasi ANBK kepada para peserta didik sehingga pelaksanaan program ANKB dapat berjalan dengan lancar guna meningkatkan mutu pendidikan.

Sepak takraw telah menjadi bagian tak terpisahkan dari budaya dan identitas di Asia Tenggara, dan juga menjadi bagian penting dari kurikulum pendidikan jasmani di sekolah. Namun, ada kesenjangan dalam partisipasi dan pengembangan bakat dalam olahraga ini, yang dipengaruhi oleh faktor sosial-ekonomi. Penelitian ini menggunakan metode kualitatif dan review literature untuk mengeksplorasi pengaruh faktor sosial-ekonomi terhadap partisipasi dan pengembangan bakat dalam sepak takraw. Hasilnya menunjukkan bahwa faktor seperti pendapatan, aksesibilitas fasilitas olahraga, dan dukungan sosial memainkan peran penting dalam memengaruhi partisipasi dan pengembangan bakat dalam olahraga ini. Implikasi penelitian ini adalah penting bagi pembuat kebijakan dan praktisi olahraga untuk merancang program-program yang inklusif dan berkelanjutan untuk meningkatkan partisipasi dan pengembangan bakat dalam sepak takraw, terutama di komunitas yang beragam secara sosial dan ekonomi.

The milk contains bioactive compounds that are beneficial for health. One of bioactive compounds contained in the milk is protein nutrient. Examination of protein levels in foodstuffs can be tested using the Lowry method that considered more sensitive. The purpose of this study was to analyzed the protein levels of various types of dairy products. This research included laboratory research with samples of 5 types of dairy products were sweetened condensed milk with vanilla flavor, fresh cow's milk, vanilla flavored skim milk flour, vanilla flavored full cream milk flour, and plain goat's milk flour. Protein content of samples were tested using the Lowry method with 3 repetitions each. The collected data were tested using One way Anova and Tukey HSD. The results of the examination of protein levels in the sample showed that the highest protein content was vanilla flavored full cream milk flour (8.43%). Meanwhile, the lowest protein content were fresh cow's milk and vanilla flavored sweetened condensed milk, which were 2.86 and 2.87%, respectively. The average protein content in dairy products in the Universitas Muhammadiyah Surakarta was 5.39%. There are significant differences between various types of dairy products on protein content.

This study examines correlation between parenting styles and stress levels among 6th-grade students at SDN 2 Sumber Kencono Wongsorejo prior to examinations. The study employed quantitative methods and utilized questionnaires as the primary means of collecting data. The sample was 35 6th-grade students who were about to take the exam, selected through purposive sampling. The findings show a correlation between the parenting style parents applied and the stress level experienced by children before the exam (p-value = 0.002). Students who experience democratic parenting tend to have lower stress levels compared to students who are educated with authoritarian, neglectful, or permissive parenting styles. This study concludes that parenting style is vital in determining children's stress levels before exams. Democratic style can help children manage stress more effectively. The  findings are expected to be a reference for parents and schools in developing strategies to help children face stress before the exam.   Keywords: 6th Grade Elementary School Children, Exams, Parenting Style, Stress Levels.

Airplane Accident Assistance and Fire Fighting (PKP-PK) is a unit at the airport that is responsible for handling aviation emergencies and fires. This research discusses the influence of work discipline and work safety on the work effectiveness of PKP-PK unit employees at airports. Work discipline itself means attitudes and behavior that show compliance and adherence to the rules, norms, procedures and work ethic established in the workplace. Meanwhile Occupational safety itself is a series of actions, policies and procedures implemented to protect the health and safety of employees in the workplace. The aim of this research is to analyze the influence of employee work discipline and work safety on the effectiveness of the PKP-PK work unit. This research also aims to determine the effectiveness of the work of firefighters regarding obstacles and the efforts made to overcome these obstacles.The method used in this research is library research, which involves collecting and analyzing data from various relevant literature sources. This research focuses on previous studies regarding work discipline and work safety on work effectiveness in the PKP-PK unit. The research results show that good work discipline and safety have a positive effect on the work effectiveness of the PKP-PK firefighting unit employees. Discipline that is embedded in the souls of every employee increases work effectiveness and enthusiasm for work, so that responses to emergency situations can be carried out quickly and effectively. Therefore, there is a need for better personnel training and more detailed safety equipment readiness to improve operational performance.

VSAT Sailor is a communication aid in KRI that is able to support communication by working directly with satellites, so that KRI can still communicate with other ships and contact bases on land even though it is in the middle of the sea, but in its use, there are still several obstacles that make the VSAT performance itself not optimal so that communication in KRI becomes disrupted and not real time. In this research, the author tries to find out the source of the problems from the obstacles that are often encountered by VSAT users, one of which is KRI, and tries to provide suggestions so that in the future VSAT at KRI can be used optimally and minimize the obstacles that occur. In this study the authors took the problem formulation "How to optimize the use of VSAT Sailor at KRI?". This research uses descriptive qualitative methods. From the research data, the relevance of the literature review, and various theories used as a reference. The data taken for this study came from several KRIs that use VSAT Sailor in the ranks of Koarmada II. With data taken from several KRIs and processed using management theory, it shows that there are still several obstacles in the use of VSAT Sailor that make its performance not optimal. To optimize the performance of the VSAT Sailor at KRI, steps are needed in the form of routine maintenance and maintenance.    

This study evaluates the impact of varying clutch housing weights and centrifugal spring constants on the acceleration of automatic motorcycles with Continuously Variable Transmission (CVT). The research employed an experimental method using a Dynotest acceleration testing tool. Tests were conducted with three clutch housing weights (816 grams, 800 grams, 771 grams) and three spring constants (39.2 N/mm, 29.4 N/mm, 21.38 N/mm). Results indicated that the combination of a 771-gram clutch housing and a 21.38 N/mm spring produced the highest acceleration, reaching 13.16 m/s² at speeds of 0-5 m/s. Conversely, the combination of an 800-gram clutch housing and a 29.4 N/mm spring showed the lowest acceleration at 11.36 m/s². The appropriate combination of clutch housing weight and spring constant is crucial for achieving optimal acceleration, as the balance of centrifugal force and inertia moment affects the efficiency of power transfer from the engine to the wheels. This study recommends adjusting the spring constant when changing the clutch housing weight to achieve maximum acceleration.  

The purpose of this study was to identify and analyze various forms of narrative irony contained in Shirley Jackson's short story "The Lottery." This qualitative study used an in-depth text analysis approach to the narrative of the short story. This research method involved structural analysis to identify important narrative elements such as conflict, plot, and character. Using an irony analysis approach, this study examined how Shirley Jackson used this technique to highlight contradictions in human behavior and society. This study provided a deeper understanding of how narrative ironies function in literary works to stimulate critical thinking about human nature.

The use of artificial intelligence has significantly transformed learning methods and processes. Previous research indicates that artificial intelligence can enhance independent learning behavior but also has the potential to increase plagiarism issues. This study aims to statistically examine the relationship between the use of artificial intelligence and plagiarism, as well as independent learning behavior. The research adopts a descriptive associative quantitative approach through surveys conducted at several high schools in Pontianak. The study population comprises students who are familiar with the ChatGPT application. The variables are the use of ChatGPT, plagiarism, and independent learning behavior. Data were collected through questionnaires from 50 respondents and analyzed using descriptive and inferential statistics. This study examines the analysis results using SPSS. Descriptive analysis shows that 56% of respondents are male and 44% are female. The results indicate that 68.8% of males are involved in plagiarism, and 55.6% exhibit independent learning behavior. Inferential analysis shows no significant relationship between the use of ChatGPT and plagiarism or independent learning behavior, based on the very low and insignificant values of Phi, Cramer's V, and Contingency Coefficient (p-value > 0.05).

The success of implementing information systems in a school environment is significantly influenced by effective risk management. This research aims to implement the OCTAVE Allegro method to identify, assess, and manage risks associated with the information system at Panca Setya High School. The OCTAVE Allegro method was chosen for its systematic and structured approach to information security risk management.This research adopts a qualitative approach using a case study method. Data were collected through in-depth interviews with school staff, direct observations, and document analysis. The findings revealed several key risks threatening the information system at Panca Setya High School, including threats to student data confidentiality, weaknesses in technological infrastructure, and a lack of security awareness among users. Through the implementation of the OCTAVE Allegro method, this research successfully identified effective mitigation strategies, such as enhancing information security training for staff, updating security policies and procedures, and strengthening data protection technologies. The conclusion of this research highlights that comprehensive and sustainable risk management is crucial for protecting the school's information assets and ensuring operational continuity.The recommendations from this study are intended to assist the management of Panca Setya High School in enhancing their information system risk management, thereby better supporting the achievement of educational objectives.

The use of artificial intelligence technology in education continues to evolve, one of which is through the application of ChatGPT. This study aims to analyze the results of solving numerical integration problems with the help of ChatGPT compared to manual methods. Numerical integration is an important method in mathematics and various disciplines for calculating the integral values of complex functions. However, manual methods require a deep understanding and high mathematical skills, with a considerable amount of time and repetitive processes that often result in inaccurate solutions. This research attempts to explore the potential of ChatGPT as an educational tool, which has not been extensively discussed in previous literature, especially in solving complex mathematical problems. In this study, a number of numerical integration problems were solved using manual methods, such as the Trapezoidl and Simpson's methods, as well as with the help of ChatGPT. The results were then compared in terms of solution accuracy. The research findings indicate that ChatGPT is capable of providing accurate solutions, with results comparable to manual methods in many cases. The analysis shows that ChatGPT can be used as an aid in solving numerical integration problems because it can provide accurate results comparable to manual methods. However, manual methods are still necessary to maintain a balance between understanding basic concepts and utilizing technology in learning.

The aim of this research is to examine the application of artificial intelligence (AI) technology in educational administration to increase transparency and accountability at the Garuda Khatulistiwa Education Foundation. This research uses a qualitative approach and case study method, data collected through observation, interviews and document analysis. The research results show that the application of AI at the Garuda Khatulistiwa Education Foundation in several aspects of educational administration, including student data management, financial management and teacher performance evaluation, can improve operational efficiency and more accurate reporting mechanisms. The application of AI can speed up the decision-making process and provide easier access to relevant information for all stakeholders. These findings show that the integration of AI technology not only provides a good level of transparency in the management of educational foundations but also increases accountability for the parties involved. Therefore, the application of AI can be used as a significant innovation in efforts to improve the management of education administration at the Garuda Khatulistiwa Education Foundation

This research analyzes the use of the Prim Algorithm in determining priority routes for package delivery by express service couriers. Through case studies, this research evaluates the efficiency of package delivery by considering delivery priority and the distance the courier will travel. The research results show that the Prim Algorithm is effective in minimizing delivery loads by connecting priority delivery points with minimal travel distance. This research method uses the Prim Algorithm to create a delivery route graph that connects all priority delivery points with a minimum travel distance, with data including the location of the delivery point, priority and distance between locations. The results show that the Prim Algorithm is effective in minimizing delivery load by generating optimal routes, allowing couriers to prioritize package delivery efficiently. This proves the important role of the Prim Algorithm in package delivery strategies for express service couriers.