bluuebunny/crossref_metadata_2025 huggingface dataset:
Use of Information and Communication Technology at the Farmer Level in Kebumen Regency, Indonesia
Authors: Saridewi Larasati Puspita , Annisa Lolanda Hamim
Published: February 2025

Digital technology is crucial in advancing digital agriculture by enabling farmers to access valuable information such as planting schedules, pest and disease management, and market price trends. Despite its potential, the use of ICT by farmers remains limited due to inadequate internet access. In 2018, only about 25.7% of farmers in Indonesia had internet connectivity. Given this situation, it is essential to investigate the efficiency of ICT utilization among farmers, particularly in the Kebumen Regency. This research aims to understand farmers' perceptions of ICT usage and identify the diversity of ICT access at the farmer level. The study involved 90 rice farmers in Kebumen Regency. Access to ICT tools in this research refers to smartphones, computers, and laptops. Farmers' perceptions of ICT usage were assessed using a four-point Likert scale with the following options: strongly agree, agree, disagree, and strongly disagree. The development of the survey statements was guided by the Technology Acceptance Model (TAM) theory, which identifies two key factors influencing technology adoption: Perceived Usefulness (PU) and Perceived Ease of Use (PEOU). The findings reveal that smartphones are the most widely used among the various ICT tools available to farmers. The study also indicates that farmers generally perceive the usefulness (PU) and ease of use (PEOU) of ICT tools. Based on these results, future agricultural extension strategies should prioritize the development of applications that are easily accessible via smartphones.
Pengembangan Sistem Informasi Learning Management System (LMS) Berbasis Web di SMK Negeri 1 Pusomaen
Authors: Igirisa Hendrawan , Olii Djami , Rianto Indra
Published: February 2025

ABSTRAK
Penelitian ini bertujuan untuk mengembangkan sistem informasi learning management system (LMS) agar memudahkan proses pembelajaran yang ada di sekolah SMK Negeri 1 Posumaen. Penelitian ini menggunakan metode Waterfall dengan 5 tahapan utama yaitu Requirements, Design, Pengembangan, Testing dan Maintenance. Bahasa pemograman yang di pakai untuk membuat sistem ini yaitu PHP (Hypertext Preprocessor). E-learning management sistem dibuat untuk memudahkan siswa dalam melakukan proses pembelajaran sehingga siswa dapat mengakses materi yang diberikan guru, mengerjakan tugas, dapat mengunduh materi dalam bentuk format digital juga mempermudah guru dalam memberikan ujian kepada siswa sehingga proses pembelajaran menjadi lebih mudah.
ABSTRACT
 This research aims to develop a Learning Management System (LMS) information system to facilitate the learning process at SMK Negeri 1 Posumaen. The study employs the Waterfall method with five main stages: Requirements, Design, Development, Testing, and Maintenance. The programming language used to create this system is PHP (Hypertext Preprocessor). The e-learning management system is designed to ease students in the learning process, allowing them to access materials provided by teachers, complete assignments, and download materials in digital format. It also simplifies the process for teachers to administer exams to students, making the learning process more accessible.
Pengaruh Model Pembelajaran Project Based Learning (PjBL) Terhadap Hasil Belajar Algoritma dan Pemrograman Siswa Kelas X SMA Negeri 3 Tondano
Authors: Bangun Veo Rani Sania Br , Batmetan Johan Reimon , Manoppo Christine Takarina Meitty
Published: February 2025

ABSTRAK
Penelitian ini bermaksud untuk mengetahui pengaruh hasil belajar siswa terhadap muatan algoritma dan pemrograman siswa kelas X SMA Negeri 3 Tondano yang diajar dengan pendekatan pembelajaran berbasis proyek. Rancangan penelitian yang digunakan adalah Quasi Experimental Design yaitu bentuk Nonequivalent Control Group Design. Populasi penelitian seluruh siswa kelas X SMA Negeri 3 Tondano. Dua kelas yang dipilih dengan metode purposive sampling dijadikan sampe yaitu kelas X-C dan X-H. Data penelitian diambil dan dikumpulkan dari tes awal (pre-test) sebelum dan setelah penerapan Project Based Learning atau dilaksanakan tes akhir (post-test). Kedua sampel berdistribusi normal menurut uji normalitas data Shapiro-Wilk. Berdasarkan hasil homogenitas data SPSS uji, varians untuk kedua kelompok adalah sama atau homogen. Pengujian hipotesis dilakukan menggunakan statistik uji-t diperoleh t_hitung > t_tabel, karena t_hitung pada data post-test kelas eksperimen dan kelas kontrol jatuh dalam wilayah kritis maka Hօ ditolak dan H₁ diterima, yang menunjukkan bahwa hasil belajar siswa yang diberikan oleh kerangka Pembelajaran Berpusat Proyek berbeda dengan siswa yang diajar menggunakan Pembelajaran Berbasis Masalah. Dengan demikian, dapat disimpulkan bahwa model pembelajaran Project Based Learning memberikan pengaruh yang positif terhadap hasil belajar Algorimta dan Pemrograman.
ABSTRACT
 This research aims to determine the influence of student learning outcomes on the algorithm and programming content of class X SMA Negeri 3 Tondano students who are taught using a project-based learning approach. The research design used is Quasi-Experimental Design, namely the form of a Nonequivalent Control Group Design. The research population was all class X students at SMA Negeri 3 Tondano. Two classes selected using the purposive sampling method were used as samples, namely classes X-C and X-H. Research data was taken and collected from the initial test (pre-test) before and after implementing Project Based Learning or carrying out the final test (post-test). Both samples were normally distributed according to the Shapiro-Wilk data normality test. Based on the results of the homogeneity of the SPSS test data, the variances for the two groups are the same or homogeneous. Hypothesis testing was carried out using t-test statistics obtained t_count > t_table, because t_count in the post-test data for the experimental class and control class fell in the critical area then Hօ was rejected and H₁ was accepted, which shows that the student learning outcomes provided by the Project-Centered Learning framework are different with students taught using Problem-Based Learning. Thus, it can be concluded that the Project Based Learning learning model has a positive influence on Algorithm and Programming learning outcomes.
Pengaruh Kecerdasan Interpersonal dan Kemampuan Komunikasi Terhadap Prestasi Belajar Siswa di SMK Negeri 1 Tondano
Authors: Rindengan Gideon Marsel , Paat Wensi Ronald Lesli , Mewengkang Alfrina
Published: February 2025

ABSTRAK
Tujuan penelitian untuk mengetahui pengaruh kecerdasan interpersonal dan kemampuan komunikasi terhadap prestasi belajar siswa di SMK Negeri 1 Tondano. Penelitian ini merupakan penelitian kuantitatif ex-post facto. Teknik pengumpulan data yaitu wawancara, observasi, serta dokumentasi. Setelah itu data diolah dengan aplikasi SPSS Versi 26. Populasi penelitian yaitu siswa-siswi kelas X yang berjumlah 11 kelas, dengan jumlah seluruh siswa 233. Kemudian sampel penelitian adalah siswa-siswi kelas X Desain Komunikasi Visual A-C (DKV) dengan teknik pengambilan sampel purposive sampling. Instrument penelitian menggunakan teknik tes kuesioner (angket). Hasil penelitian menunjukan terdapat pengaruh kecerdasan interpersonal (X1) terhadap prestasi belajar (Y) dengan nilai koefisien regresi 763,089, kemampuan komunikasi (X2) terhadap prestasi belajar (Y) 27,727, dan pengaruh kecerdasan interpersonal (X1), dan kemampuan komunikasi (X2) terhadap prestasi belajar (Y) secara bersama-sama 412,071.
ABSTRACT
 The research aims to determine the influence of interpersonal intelligence and communication skills on student learning achievement at SMK Negeri 1 Tondano. This research is an ex-post facto quantitative research. Data collection techniques are interviews, observation, and documentation. After that, the data was processed using the SPSS Version 26 application. The research population was 11 class X students, with a total of 233 students. Then the research sample was class sampling. The research instrument uses a questionnaire test technique (questionnaire). The research results show that there is an influence of interpersonal intelligence (X1) on learning achievement (Y) with a regression coefficient value of 763.089, communication skills (X2) on learning achievement (Y) 27.727, and the influence of interpersonal intelligence (X1) and communication skills (X2) on learning achievement (Y) collectively 412,071.
Pengaruh Model Pembelajaran PJBL Terhadap Hasil Belajar Informatika Siswa Kelas X SMA Negeri 3 Tondano
Authors: Sage Chensui Natania , Batmetan Johan Reimon , Togas Peggy Veronica
Published: February 2025

ABSTRAK
Dalam penelitian ini peneliti memberikan terapi pembelajaran langsung kepada siswa kelas X SMA Negeri 3 Tondano, dan penelitian ini menggunakan metode penelitian kuantitatif dan jenis penelitian eksperimen yang mencari perbedaan antara dua kelas yang berbeda. Melaksanakan tes berupa pre-test sebelum diberikan perlakuan atau treatment dan berupa post-test setelah diberikan perlakuan atau treatment. Dan dibagi menjadi dua kelas yang berbeda, dimana kelas eksperimen menggunakan model pembelajaran proyek dan kelas kontrol menggunakan model pembelajaran masalah. Dan berdasarkan hasil penelitian yang dilakukan dengan menguji hipotesis yang diambil dari hasil post-test, diperoleh hasil penelitian yang berimplikasi pada penerapan model pembelajaran berbasis proyek. Hal ini diperoleh dari hasil uji hipotesis yang dilakukan dimana > dengan skor 3,199 > 2,048. Dan berdasarkan signifikansi 2 digit, 0,002. Oleh karena itu, dapat disimpulkan bahwa model pembelajaran yang diberikan pada kedua kelas mempunyai pengaruh. Hal ini juga didasarkan pada hasil makna yang diperoleh, dimana hasilnya danlt; 0,05 sehingga dapat disimpulkan bahwa keberadaan model pembelajaran yang layak berpengaruh terhadap hasil belajar. Namun hal ini tidak signifikan baik pada model pembelajaran berbasis proyek maupun model pembelajaran berbasis masalah.
ABSTRACT
 In this research, the researcher provided direct learning therapy to class X students at SMA Negeri 3 Tondano, and this research used quantitative research methods and a type of experimental research that looked for differences between two different classes. Carry out tests in the form of a pre-test before being given treatment and in the form of a post-test after being given treatment. And divided into two different classes, where the experimental class uses a project learning model, and the control class uses a problem learning model. And based on the results of research carried out by testing hypotheses taken from post-test results, research results were obtained which have implications for the application of project-based learning models. This was obtained from the results of the hypothesis test carried out where > with a score of 3.199 > 2.048. And based on 2 digit significance, 0.002. Therefore, it can be concluded that the learning model given to both classes has an influence. This is also based on the meaning results obtained, where the results are; 0.05 so it can be concluded that the existence of a suitable learning model influences learning outcomes. However, this is not significant in either the project-based learning model or the problem-based learning model.
Perancangan Sistem Informasi Perpustakaan Berbasis Web di SMK Negeri 3 Tondano
Authors: Rongko Glendy , Kilis Billy Morris Harold , Rianto Indra
Published: February 2025

ABSTRAK
Penelitian ini bertujuan untuk merancang aplikasi sistem informasi perpustakaan dengan menggunakan metode RAD (Rapid Application Development) yang memiliki 5 tahapan yaitu pemodelan bisnis, pemodelan data, pemodelan proses, pembuatan aplikasi dan pengujian. Bahasa pemrograman yang dipakai untuk membuat sistem ini yaitu PHP (Hypertext Preprocessor). Sistem informasi perpustakaan dirancang dan dibuat untuk mempermudah proses peminjaman dan pengembalian buku serta memudahkan pegawai perpustakaan dalam melakukan pendataan buku yang ada di perpustakaan SMK Negeri 3 Tondano, Sehingga dapat menghindari kesalahan yang sering dilakukan sistem manual sekaligus menghemat waktu. Serta mempermudah siswa dalam mengakses buku berupa format digital sehingga siswa bukan hanya meminjam buku tetapi juga dapat megunduh buku yang ada di dalam sistem.
 ABSTRACT
 This research aims to design a library information system application using the RAD (Rapid Application Development) method which has 5 stages, namely business modeling, data modeling, process modeling, application creation, and testing. The programming language used to create this system is PHP (Hypertext Preprocessor). The library information system was designed and created to simplify the process of borrowing and returning books and to make it easier for library staff to collect data on books in the SMK Negeri 3 Tondano library, to avoid mistakes that are often made by manual systems while saving time. As well as making it easier for students to access books in digital format so that students not only borrow books but can also download books in the system.
Penerapan Model Pembelajaran Berbasis Masalah untuk Meningkatkan Hasil Belajar Informatika Siswa Kelas X SMA Negeri 2 Tondano
Authors: Siregar Lomak Nauli , Mewengkang Alfrina , Togas Peggy Veronica
Published: February 2025

ABSTRAK
Penelitian ini bertujuan untuk meningkatkan hasil belajar dan keaktifan siswa pada mata pelajaran Informatika siswa kelas X SMA Negeri 2 Tondano dengan menggunakan model pembelajaran Berbasis Masalah. Penelitian ini merupakan Penelitian Tindakan Kelas (Classroom Action Research) yang bertujuan untuk mengatasi permasalahan yang ada dikelas. Subjek penelitian adalah siswa kelas X-B yang berjumlah 28 siswa. Penelitian dilakukan dalam 2 siklus dan setiap akhir siklus dilakukan refleksi terhadap tindakan yang diberikan. Teknik pengumpulan data dalam penelitian menggunakan lembar observasi, Lembar Tes, dan dokumentasi. Hasil Penelitian menunjukkan bahwa pelaksanaan pembelajaran dengan menggunakan model pembelajaran Berbasis Masalah pada mata pelajaran Informatika Dapat meningkatkan Hasil belajarsiswa. Hal ini dapat dilihat dari Hasil Tes ketuntasan siswa dari siklus I sebesar 42,85% meningkat pada siklus II sebesar 92,86% dan dapat dilihat dari lembar observasi bahwa rata-rata siswa semakin aktif pada sikluske II. Terbukti bahwa model pembelajaran Berbasis Masalah dapat meningkatkan hasil belajar siswa pada mata Pemrograman Dasar.
ABSTRACT
This research aims to improve learning outcomes and student activity in the Informatics subject for class X students at SMA Negeri 2 Tondano by using a problem-based learning model. This research is Classroom Action Research which aims to overcome existing problems in the classroom. The research subjects were 28 students in class X-B. The research was carried out in 2 cycles and at the end of each cycle, a reflection was carried out on the actions given. Data collection techniques in research use observation sheets, test sheets, and documentation. The research results show that implementing learning using the problem-based learning model in Informatics subjects can improve student learning outcomes. This can be seen from the student completion test results from cycle I of 42.85%, an increase in cycle II of 92.86% and it can be seen from the observation sheet that on average students were more active in cycle II. It is proven that the problem-based learning model can improve student learning outcomes in the Basic Programming subject.
Pengembangan Video Dokumenter Promosi Budaya Desa Jiko Mengguankan Smartphone dan Anamorphic Lense dengan Teknik Pengambilan Wide Angle
Authors: Taguriri Eksel , Komansilan Trudi , Mewengkang Alfrina
Published: February 2025

ABSTRAK
Penelitian ini bertujuan untuk mengembangkan video dokumenter sebagai media promosi budaya Desa Jiko, menggunakan teknologi smartphone dan anamorphic lens dengan teknik pengambilan gambar wide angle. Desa Jiko memiliki kekayaan budaya yang unik, salah satunya adalah bahasa daerah yang kental, yang menjadi ciri khas serta identitas lokal masyarakatnya. Video dokumenter ini diharapkan dapat mendukung upaya pelestarian budaya sekaligus mempromosikan keunikan Desa Jiko kepada khalayak luas. Kemajuan teknologi, terutama pada smartphone, memungkinkan penggunaan fitur-fitur canggih dalam produksi video, seperti penggunaan anamorphic lens, yang menghasilkan efek sinematografi dengan rasio aspek layar lebar untuk memberikan pengalaman visual yang lebih menarik. Selain itu, teknik wide angle dimanfaatkan untuk menangkap sudut pandang yang luas sehingga dapat menampilkan keindahan alam, seni, dan budaya Desa Jiko secara maksimal. Hasil dari penelitian ini menunjukkan bahwa video dokumenter berbasis smartphone dengan kombinasi anamorphic lens dan teknik wide angle mampu memberikan kualitas visual yang optimal sekaligus menjadi alat promosi budaya yang efektif. Video ini diharapkan tidak hanya menjadi media edukasi, tetapi juga inspirasi untuk pengembangan konten kreatif berbasis budaya lokal.
ABSTRACT
This study aims to develop a documentary video as a promotional media for the culture of Jiko Village, using smartphone technology and anamorphic lenses with wide angle shooting techniques. Jiko Village has a unique cultural wealth, one of which is a strong regional language, which is a characteristic and local identity of its people. This documentary video is expected to support efforts to preserve culture while promoting the uniqueness of Jiko Village to a wider audience. Technological advances, especially on smartphones, allow the use of sophisticated features in video production, such as the use of anamorphic lenses, which produce cinematography effects with a wide screen aspect ratio to provide a more interesting visual experience. In addition, the wide angle technique is used to capture a wide angle of view so that it can display the natural beauty, art, and culture of Jiko Village to the maximum. The results of this study indicate that smartphone-based documentary videos with a combination of anamorphic lenses and wide angle techniques are able to provide optimal visual quality while being an effective cultural promotion tool. This video is expected to not only be an educational medium, but also an inspiration for the development of creative content based on local culture.
Perancangan Sistem E-Rapor di SMK Negeri 1 Tabukan Utara
Authors: Pratasik Stralen , Mewengkang Alfrina , Jacob Marcelia
Published: February 2025

ABSTRAK
Penelitian ini bertujuan untuk mengembangkan sistem e-rapor di SMK Negeri 1 Tabukan Utara. Penelitian ini dikembangkang dengan menggunakan metode penelitian Research and Development (RnD) dengan model Agile Development dan pendekatan Extreme Programming (XP) dengan melewati empat tahapan yaitu perencanaan (planning), desain (design), pengkodean (coding), dan pengujian (testing). Berdasarkan hasil pengujian usability yang dilakukan maka dapat disimpulkan bahwa sistem e-rapor di SMK Negeri 1 Tabukan Utara yang dikembangkan sangat layak untuk digunakan.
ABSTRACT
This study aims to develop an e-report system at SMK Negeri 1 Tabukan Utara. This study was developed using the Research and Development (RnD) research method with the Agile Development model and the Extreme Programming (XP) approach by going through four stages, namely planning, design, coding, and testing. Based on the results of the usability testing carried out, it can be concluded that the e-report system at SMK Negeri 1 Tabukan Utara that was developed is very feasible to use.
Pengembangan Video Pembelajaran Animasi 2 Dimensi untuk Kelas XI Multimedia SMK Negeri 1 Tondano
Authors: Moningkey Michelle Aliel , Parinsi Mario Tulenan , Mewengkang Alfrina
Published: February 2025

ABSTRAK
Tujuan dari penelitian ini ialah untuk mengembangkan video pembelajaran untuk memfasilitasi kegiatan belajar mengajar siswa – siswi jurusan multimedia SMK Negeri 1 Tondano khususnya kelas XI kemudian untuk mengukur kelayakan penggunaan media pembelajaran yang dikembangkan. Penelitian ini menerapkan metode Research & Development dengan menggunakan prosedur pengembangan Multimedia Development Life Cycle (MDLC). Enam tahapan dalam MDLC antara lain, concept, design, material collecting, assembly, testing, distribution. Setelah lolos uji validitas dari ahli materi serta ahli media, dilanjutkan untuk tahap pengujian. Proses pengujian melibatkan siswa – siswi kelas 11 jurusan multimedia yaitu berjumlah 30 orang, pengujian dilakukan di SMK Negeri 1 Tondano. Pendekatan analisis menggunakan metode kualitatif serta metode kuantitatif dalam menilai seberapa layak media pembelajaran yang dihasilkan. Penelitian menunjukkan hasil, yaitu a) menciptakan video pembelajaran yang akan digunakan oleh siswa kelas 11 jurusan multimedia SMK Negeri 1 Tondano untuk mata pelajaran animasi 2D, b) tingkat kelayakan dari video pembelajaran berdasarkan ahli media yaitu 93,98% atau sangat layak, ahli materi 97,1% atau sangat layak, serta hasil uji coba pada siswa memenuhi syarat sangat layak menjadi alat bantu guru pada pembelajaran siswa kelas 11 jurusan multimedia SMK Negeri 1 Tondano.
 ABSTRACT
 The purpose of this study is to develop learning videos to facilitate teaching and learning activities for multimedia students at SMK Negeri 1 Tondano, especially class XI, then to measure the feasibility of using the developed learning media. This study applies the Research & Development method using the Multimedia Development Life Cycle (MDLC) development procedure. The six stages in MDLC include concept, design, material collecting, assembly, testing, distribution. After passing the validity test from material experts and media experts, it continues to the testing stage. The testing process involved 30 students in class 11 majoring in multimedia, the testing was carried out at SMK Negeri 1 Tondano. The analysis approach uses qualitative methods and quantitative methods in assessing how feasible the resulting learning media is. The research shows the results, namely a) creating learning videos that will be used by 11th grade students majoring in multimedia at SMK Negeri 1 Tondano for 2D animation subjects, b) the level of eligibility of learning videos based on media experts is 93.98% or very feasible, material experts 97.1% or very feasible, and the results of trials on students meet the requirements of being very feasible as a teacher aid in learning for 11th grade students majoring in multimedia at SMK Negeri 1 Tondano.
Pengembangan Media Pembelajaran Pengenalan Bahasa Sangihe untuk Anak Sekolah Dasar Berbasis Mobile
Authors: Mewengkang Alfrina , Pratasik Stralen , Sasela RIzaldi
Published: February 2025

ABSTRAK
 Tujuan dari penelitian ini adalah untuk merangcamg dan membangun aplikasi pembelajaran berbasis mobile yang kreatif, efektif dan mendukung dalam proses penyampaian pesan kepada peserta didik dalam proses pembelajaran. Penulis membuat aplikasi media pembelajaran ini menggunakan metode MDLC (Multimedia Development Life Cycle) yang memiliki 6 tahapan. Perancangan aplikasi ini menggunakan Adobe Flsh CS6, Adobe Photoshop untuk mengolah gambar, Adobe Audition CS6 untuk mengolah audio, dan Audio Recorder. Hasil dari penelitian meunjukan bahwa pengembangan media pembelajaran pengenalan bahasa sangihe untuk anak sekolah dasar berbasis mobile dapat membantu guru dan orang tua dalam proses penyajian dan dapat menjadi sarana belajar bagi siswa.
ABSTRACT
 The purpose of this study is to design and build a creative, effective and supportive mobile-based learning application in the process of delivering messages to students in the learning process. The author created this learning media application using the MDLC (Multimedia Development Life Cycle) method which has 6 stages. The design of this application uses Adobe Flash CS6, Adobe Photoshop for image processing, Adobe Audition CS6 for audio processing, and Audio Recorder. The results of the study indicate that the development of mobile-based Sangihe language introduction learning media for elementary school children can help teachers and parents in the presentation process and can be a learning tool for students.
Analisis Verifikasi Proof of Stake (POS) NFT dengan Teknologi Smart Contract
Authors: Sumampouw Eleazer Gottlieb Julio , Sembiring Irwan
Published: February 2025

ABSTRAK
Penelitian mengenai Analisis Verifikasi Proof of Stake (PoS) NFT dengan Teknologi Smart Contract, yang dilakukan melalui metode eksperimental, menghasilkan pencapaian yang sesuai dengan tujuan penelitian. Peneliti berhasil mengembangkan dan menjalankan sistem sesuai dengan tujuan yang diinginkan. Beberapa pencapaian utama mencakup implementasi berhasil dari proses verifikasi PoS, serta proses Stake, Unstake, dan Claim yang menggunakan integrasi Web3 dan dompet Metamask. Rekam transaksi dengan akurat mencatat waktu pengirim dan penerima bersama dengan prosedur verifikasi pemilik. Lebih lanjut, penelitian ini menyajikan analisis perbandingan antara Proof of Work (PoW) dan Proof of Stake (PoS). Temuan penelitian menunjukkan keunggulan Proof of Stake (PoS) dalam efisiensi waktu transaksi, biaya transaksi yang lebih rendah, peningkatan keamanan melalui pemilihan validator yang cermat, dan ketahanan terhadap berbagai jenis serangan. Secara keseluruhan, penelitian ini mengukuhkan keefektifan dan keunggulan implementasi Proof of Stake (PoS) dalam konteks Non-Fungible Tokens (NFTs) menggunakan Smart Contract.
ABSTRACT
The research on the Analysis Verification of Proof of Stake (PoS) NFT Smart Contract Technology, conducted through experimental methods, has yielded successful outcomes aligning with the research objectives. The researcher has successfully developed and executed the system, achieving the intended goals. Key accomplishments include the successful implementation of the PoS verification process, as well as the Stake, Unstake, and Claim processes, utilizing Web3 and Metamask wallet integration. Transaction records accurately capture the timing of sender and receiver actions, alongside owner verification procedures. Furthermore, the research presents a comparative analysis between Proof of Work (PoW) and Proof of Stake (PoS). The findings underscore the superiority of Proof of Stake (PoS) in terms of transaction time efficiency, lower transaction costs, enhanced security through meticulous validator selection, and resilience against various types of attacks. Overall, the research substantiates the efficacy and advantages of implementing Proof of Stake (PoS) in the context of Non-Fungible Tokens (NFTs) using Smart Contracts.
The Effect of Student Learning Styles and Learning Videos on the Learning Outcomes of Light Vehicle Engine System Subjects in Class XI TKR SMK N 1 Ratahan
Authors: Rottie Max Marthen , Oroh Rolly , Daud Metsi , Rompas Parabelem Tinno Dolf , Olii Djami
Published: February 2025

ABSTRACT
 
The low learning achievement of students in class XI TKR SMK Negeri 1 Ratahan in the subject of Light Vehicle Engine Systems is caused by several factors, such as: Learning Style, Motivation, Interest and the lack of teachers using Learning Media, such as Learning Videos, pictures etc. Based on this reason, research was conducted with the aim of knowing how much influence learning styles and the use of learning videos on learning outcomes and to find out whether there is an influence of learning styles and the use of learning videos in influencing student learning outcomes in Light Vehicle Engine System subjects. The population in this study were all Class XI TKR students who studied Light Vehicle Engine System Subjects as many as 60 students and samples for Variable (X1) as many as 60 students and samples for Variable (X2) as many as 60 students. Using quantitative research methods regression approach. The data collection technique uses a questionnaire with a Likert scale and uses the Education Report Value. Data processing using classical assumption tests: Multicollinearity test, Heteroscedasticity test: Data Validity and Reliability Test, Data Normality Test, Data Homogeneity Test, F Test, Differential Test (t test), analyzed using the IBM SPSS For Windows 25.0 Program. The results show that the effect of learning styles and the use of learning videos on learning outcomes is in the high category. Learning styles and the use of learning videos have a contribution to the influence on learning outcomes in the Light Vehicle Engine System Subject of Class XI TKR students by 43%. The conclusion with this research is that there is a positive and significant influence between learning styles and learning videos on the learning outcomes of light vehicle engine system subjects of class XI TKR students of SMK Negeri 1 Ratahan.
Prototipe Pemanasan Bahan Bakar Biosolar B30 Menggunakan Arduino
Authors: Aji Ahmad Tubagus Tsani Risqi , Rompas Parabelem Tinno Dolf , Daud Metsi , Kusuma Dwi Dharma Arta , Ramadhani Ahmad Ilham
Published: February 2025

ABSTRAK
Salah satu pengganti bahan bakar fosil adalah biosolar, dimana bahan bakar yang diperoleh dari sumber daya biologis, seperti minyak nabati dan lemak hewani. Salah satu untuk meningkatkan efisiensi dari biosolar dengan cara mengkonsumsi diatas suhu 25 0c. Untuk itu dibuatlah penelitian yaitu sebuah prototipe pemanas bahan bakar yang diatur oleh mikrokontroller arduino uno dengan menggunakan sensor DS18B20, pemanas heater dan relay. Percobaan dilakukan dengan memanaskan bahan bakar biosolar B30 sebanyak 700 ml dalam tabung berukuran diameter 16,5 cm dan tinggi 20 cm pada suhu awal 30 0C. Pengujian prototipe pemanas dilakukan dengan suhu 35 0C, 40 0C, 450C, dan 50 0C. Dari hasil percobaan terdapat persentase selisih ushu sebesar 5.71 %, 4.25%, 2.89 %, dan 1.62 %.
 
ABSTRACT
 One alternative to fossil fuels is biodiesel, which is fuel derived from biological resources such as vegetable oils and animal fats. One way to improve the efficiency of biodiesel is by consuming it at temperatures above 25°C. To achieve this, a study was conducted to develop a fuel heating prototype controlled by an Arduino Uno microcontroller using a DS18B20 temperature sensor, a heater, and a relay. The experiment involved heating 700 ml of B30 biodiesel fuel in a cylindrical container with a diameter of 16.5 cm and a height of 20 cm, starting at an initial temperature of 30°C. The heating prototype was tested at temperatures of 35°C, 40°C, 45°C, and 50°C. The experimental results showed temperature deviation percentages of 5.71%, 4.25%, 2.89%, and 1.62%, respectively.
Conocimiento, actitudes y prácticas sexuales de riesgo en estudiantes de primer año de Ciencias Básicas y Tecnología, UNAN–Managua, 2023
Authors: Espinoza Mairena Juana Francisca
Published: February 2025

El objetivo de esta investigación fue analizar los conocimientos, actitudes y prácticas sexuales de riesgo en estudiantes de primer año de Ciencias Básicas y Tecnología de UNAN –Managua, 2023, este estudio es observacional con enfoque cuantitativo, descriptivo, de corte transversal, tuvo como muestra a 190 estudiantes, los que procedían de diferentes carreras. Para recolectar la información se aplicó un cuestionario en línea, a través de plataforma de Google Form. Los principales resultados obtenidos fueron los siguientes: prevaleció la edad de 18- 19 años con el 63.2%, siendo más frecuente el sexo femenino con el 72.1%, el 66.8% proceden del área urbana. Con relación a los resultados CAP, presentaron buen conocimiento y actitudes favorables, pero con prácticas sexuales de mediano riesgo para ambos sexos. En conclusión, el poseer el conocimiento, refleja una buena actitud, pero no siempre es sinónimo de una buena práctica y en asuntos que implican la salud sexual puede acarrear consecuencias desfavorables, principalmente en los adolescentes, debido que estos se consideran vulnerables por no estar preparado para llevar una vida sexual saludable.
Focal Segmental Membranoproliferative Glomerulonephritis
Authors: Mubarak Muhammed
Published: February 2025

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Relato de experiência do banco comunitário de desenvolvimento Jardim Botânico
Authors: Santos Daniel Pereira dos , Santos Paulo Sérgio dos , Rodrigues Rodrigo Moreira , Feitosa Sérgio Stênio Andrade , Carneiro Vanderson Gonçalves
Published: February 2025

O artigo aborda a importância da extensão universitária como elo essencial entre a academia e a sociedade, destacando sua evolução para além da conexão teoria-prática. Enfatiza o papel ativo da extensão na superação de desigualdades, promovendo diálogo e ações sociais. Destaca a tríade ensino, pesquisa e extensão como referência para um ensino superior holístico. Além disso, discute a participação dos estudantes, valorização do conhecimento popular e busca por soluções inovadoras na extensão universitária. O segundo trecho apresenta um estudo de caso sobre o Banco Comunitário Jardim Botânico na Comunidade São Rafael, Paraíba, como exemplo bem-sucedido de economia solidária. O banco, mesmo com limitações geográficas, destaca-se pela resiliência, envolvimento comunitário e inovações, como moeda eletrônica. O mapeamento socioeconômico e pesquisa de Felicidade Interna Bruta orientam projetos alinhados às necessidades da população. Conclui ressaltando que, apesar das limitações, o BCDJB desempenha papel crucial no desenvolvimento local, oferecendo lições valiosas para futuras iniciativas de Bancos Comunitários.
Jardim sensorial-evolutivo UEMG-Carangola: ambiente didático para o ensino de botânica
Authors: Viana Ivan Becari , Silva Sabrina De Matos
Published: February 2025

No ensino de Botânica as dificuldades de aprendizagem dos conteúdos justificam-se pela falta de atividades interativas que despertem a curiosidade e o interesse dos discentes. Um ensino altamente teórico e restrito ao espaço de sala de aula contribui para a impercepção Botânica. O Jardim Didático Sensorial-Evolutivo é uma iniciativa desenvolvida na UEMG-Carangola que combina natureza com aprendizagem interativa. O jardim foi organizado em canteiros temáticos sensoriais e por grupos de plantas, de modo a proporcionar experiências sensoriais e promover o melhor entendimento sobre evolução. Como ações desenvolvidas no jardim, destacam-se as visitações, em especial de escolas da educação básica de ensino da microrregião de Carangola (MG), e a produção de mudas para doação aos visitantes. Como forma de aprimorar a experiência dos visitantes, foram instaladas placas com QR Code que permitem acesso a informações adicionais e curiosidades sobre as plantas. A visitação ao jardim tornou-se uma experiência enriquecedora para os alunos da rede básica de ensino, combinando aprendizado e visitação de forma dinâmica e extrovertida. Estima-se que o Jardim Didático Sensorial-Evolutivo recebeu cerca de 400 alunos da educação básica entre os anos de 2022 e 2023. Ressaltamos que o Jardim Didático Sensorial-Evolutivo tem promovido uma contextualização da relação homem-planta, valorizando a flora local e a relação com a comunidade acadêmica, além de ser um ambiente de multiplicação da concepção de espaços não formais de ensino.
HERRAMIENTA PARA MEDIR EL GRADO DE IMPLEMENTACIÓN DE LA ECONOMÍA CIRCULAR EN LA CADENA DE SUMINISTRO
Authors: Marichal Amanda García , Brito Beatriz Barrios , Martínez Igor Lopes
Published: February 2025

El avance de la Economía Circular en Cuba está en una etapa inicial, ya que no se reconoce la logística como un sistema funcional dentro de la cadena de valor. Existe una visión limitada de la logística como un simple componente de la cadena, a pesar de la tendencia global hacia el desarrollo de cadenas circulares. Se han desarrollado herramientas internacionales para evaluar y medir la integración de la economía circular en los actores de la cadena de valor. El objetivo que se persigue es proponer una herramienta de medición de la circularidad en las cadenas de suministro, basada en las limitaciones y el insuficiente desarrollo del paradigma circular en Cuba. Se emplean métodos empíricos en el desarrollo de la herramienta, derivados de la revisión documental, los procesos de análisis-síntesis e inducción-deducción. Se obtuvo la herramienta "MECr cuestionario”, la cual permite evaluar la circularidad en la cadena de suministro a partir de la adopción de estrategias alineadas a los principios de la economía circular. Su aporte práctico-social es que actúa como una guía metodológica para las empresas cubanas en el proceso de transición hacia el modelo circular, y a su vez, constituye una herramienta de aprendizaje para incorporar en programas de formación.
Gold Mina. Family Anecdotes
Authors: Alvarado Banda Héctor Manuel
Published: February 2025

We have all, at one time or another, sat down to listen to anecdotes or imaginary adventures of our elderly. Mina de Oro (Gold Mine/Gold Mina) is the compilation of the nostalgic narrations of a woman whose circumstances, in an indelible manner, marked the history of a town, Villa Juárez, in the state of Sonora. The simple and day-to-day experiences of Mina are encouraging examples for those of us who believe in clear objectives and have firm convictions of achieving what we yearn for, but above all, of becoming infected by the infinite love of others and of what our memory is able to treasure of a heart of gold.
Immigrant Susceptibility to Hand Injuries in Industrial Work Environments: A Retrospective Analysis
Authors: Acar Demet , Kadıoğlu Emine
Published: February 2025

Abstract
Aims: The aim of this study was to elucidate the prevalence and demographic characteristics of patients admitted to Emergency Departments (EDs) with work-related hand injuries and to determine the factors that contribute to such injuries and have an impact on the severity of injuries.
Methods:The study spanned from January 2021 to January 2022 and involved patients seeking medical attention for hand injuries at a Level-3 ED near an industrial area. Out of a total of 2,153 patients which had hand injuries,946 patients admitted due to work-related injuries were evaluated. Data on demographics, injury severity, the timing of injuries, the data on immigrant status, occupational hand injury prevalence in local and immigrant populations, and basic data on treatment methods were collected and analyzed.
Results:The study revealed that 31.9% of individuals with hand injuries were migrants. Injuries were more prevalent during the last working days of the week and in the 35-50 age group. The 2nd finger exhibited the highest injury rate. Surgical interventions were required for 63.95% of patients, with 32.72% of those identified as immigrants.
Conclusions:The study highlights that hand injuries are more common among immigrants and sheds light on their vulnerability in occupational settings. Factors such as increased risks in industrial jobs, language barriers, and social and cultural adaptation problems contribute to this increased sensitivity. To reduce these inequalities and increase workplace safety, special preventive measures, personal protection method training, as well as frequent repetition of language, social and cultural adaptation training will reduce the severity of hand injuries and injuries due to occupational accidents in the migrant population as well as in the general population.
PERIPHERAL BLOOD SMEAR FINDINGS AND CLINICAL SIGNIFICANCE IN PREGNANT WOMEN WITH COVID-19
Authors: Ay Tuncel Defne , Narin Raziye , Muhlis Turkan , Yiğit Sönmez Ayşe
Published: February 2025

ABSTRACT
Aim: Peripheral blood smear analysis is a cornerstone diagnostic tool in hematology. Pregnant women with COVID-19, this diagnostic technique assumes heightened significance. Our study aims to elucidate the peripheral smear findings in pregnant women with COVID-19.
Material and Methods: Our study's participants comprise 50 pregnant women diagnosed with COVID-19 and 50 controls. Clinical findings medications, peripheral blood smear and complete blood count parameters some of examined variables. The Chi-Square tests were employed to compare categorical measurements. Samples T-Test was used for numerical measurements. The groups were compared in terms of complete blood count parameters. Significant differences were identified between the groups.
Results: The values of ferritin, CRP, procalcitonin, D-dimer, APTT, and fibrinogen exhibited significant differences among the groups. The lymphocyte ratio in the COVID-19 group is lower compared to the control group. The proportions of band cells, lymphocytes, monocytes, neutrophils, vacuolated monocytes, and hypersegmented neutrophils exhibit statistically significant differences between the groups. Peripheral blood abnormalities are prevalent in microbial infections, particularly in viral infections.
Conclusions: These abnormalities can provide insights into the underlying pathophysiological changes. In patients with COVID-19, no abnormalities have been observed in platelets and erythrocytes. However, compared to controls, atypical monocytes and neutrophil hypersegmentation are significantly elevated in COVID-19 patients.
Análise comparativa do uso de telas entre crianças com Transtorno do Espectro Autista e crianças sem diagnóstico durante a pandemia de Covid-19
Authors: Amato Helen Nayara , Monteiro Rubiana Cunha , Almeida Amanda Ramos , Mantovani Heloisa Briones , Rocha Aila Narene Dahwache Criado
Published: February 2025

A revisão preliminar da literatura, permitiu criar a hipótese de que o aumento do uso de telas por crianças está diretamente relacionado à redução das oportunidades de participação em atividades fora do ambiente domiciliar, impactando negativamente seu repertório ocupacional. O objetivo deste estudo foi realizar uma análise comparativa do uso de telas durante a pandemia da Covid-19 entre crianças sem diagnóstico e aquelas diagnosticadas com Transtorno do Espectro Autista (TEA). Para alcançar o objetivo,  realizou-se a aplicação de um questionário online com os pais das crianças sem diagnóstico e diagnosticadas com TEA na faixa etária de 0 anos até 11 anos e 11 meses. Após 30 dias com o questionário aberto foram analisadas 67 respostas dos pais/responsáveis pelas crianças. O estudo identificou que durante a pandemia o tempo de uso de telas intensificou, mais de 40% das crianças estudadas aumentou o seu uso diário para mais de 4 horas. Além disso, as telas influenciam nas ocupações das crianças, principalmente relacionados as atividades lúdicas, ao descanso/sono e a participação social, além de influenciarem no comportamento das crianças com diagnóstico de TEA. Por fim, o estudo mostra a necessidade de um trabalho de orientação de profissionais da área da saúde para os pais, para evitar qualquer exposição precoce a essas telas, privando de  quaisquer riscos no desenvolvimento que possam ser causados por uso excessivo dessas tecnologia.
Contribución al estudio farmacológico de las hojas de Daucus Carota I. (Zanahoria), Anathum Graveolens L. (eneldo) y Achillea Millefollium L. (milenrama) de uso popular en Guatemala como sedantes e hipnóticos
Authors: Reyes M. Marta Inés , Saravia G. Amarilis
Published: February 2025

La presente investigación com prende un estudio de las propiedades Farmacológicas (hipnóticas y sedan tes) atribuidas a Daucus carota (zanahoria), Aneth um graveolens (eneldo), y a chilles millefollium (milenrama) de uso popular en Guatemala.
 
Para comprobar dichos efectos terapéuticos, se prepararon infusiones de las plantas anteriormente mencio nadas y se administraron a ratones albinos de un peso aproximado de 20g.
 
Los test que fueron empleados para este estudio fueron los de Boissier y utilizando la Placa aguje reada, Rota Rod y Chimenea y el de Potencialización del Sueño de Winter.
 
Los resultados obtenidos en los diferentes tests mencionados dieron resultados positivos para cada una de las plantas estudiadas. Las hojas de las plantas no poseen toxicidad aguda.
Aislamiento y termoestabilidad de inhibidores de tripsina del frijol negro (P. vulgaris)
Authors: Ortiz Chacón Julieta Eugenia , Mansilla Omar Dary
Published: February 2025

En el presente trabajo se aislaron los inhibidores de tripsina del frijol negro (P. vulgaris) y se evaluó su estabilidad térmica. Los inhibidores fueron aislados por cromatografía de afinidad, obteniéndose, para los dos ensayos realizados, 0,0020 y 0,0029 g de inhibidos, con factores de purificación de 71.42 y 67.61, respectivamente. El producto obtenido fue sometido a electroforesis, determinándose que casi la totalidad de las proteínas presentes en el extracto original que no tenían actividad antitríptica, habían sido removidas en el producto aislado. Sin embargo, el patrón electroforético del producto obtenido no coincidió con el del extracto original. Para evaluar la estabilidad térmica se compararon las bandas electroforéticas obtenidas a partir de frijoles cocidos a presión atmosférica a 0, 30, 60, 90 y 120 min. Paralelamente se efectuó un ensayo de actividad antitríptica para las mismas muestras de frijol. Con ambos métodos, el electroforético (cualitativo) y el de competencia (cuantitativo) se determinó que a los 30 min. de cocción los inhibidores de tripsina habían sido ya destruidos.
 
Del trabajo realizado se concluyó que los inhibidores de tripsina del frijol negro (P. vulgaris) son múltiples, aislándose 7 bandas con comportamiento electroforético distinto y que los inhibidores de tripsina son inestables a un tratamiento de cocción a presión atmosférica a partir de 30 min.
Cuantificación de Metil Terbutil Éter (MTBE) en gasolinas distribuida en la Ciudad de Guatemala, por cromatografía de gases
Authors: Taracena Edwin , Benavides José Roberto
Published: February 2025

En el presente trabajo se intentó determinar la presencia y el porcentaje d e antidetonante, específicamente Metil-terbutil-eter (MTBE) que contienen las gasolinas que se expenden en la ciudad de Guatemala. Se analizó por medio de cromatografía de gases el MTBE, la Nafta cruda y gasolinas de diferentes marcas, utilizando específicamente el cromatógrafo marca Perkin Elmer modelo 8,500 y una columna "Wide Bore” capilar Supelco Wax 10, de 0.55 mm OD x 30 m de largo (de Poli-etHen glicol), para determinar si la gasolina que se expende en la Ciudad, contienen MTBE y en qué porcentaje. Para tai objeto se inyectó NAFTA CRUDA y MTBE, para establecer en que condiciones se lograba una mejor separación del pico del antidetonante en el cromatograma. Una vez establecidas las mejores condiciones de separación, se inyectaron mezclas de concentración conocida de MTBE en NAFTA para poder elaborar una curva de calibración y con ésta, establecer el contenido de MTBE en las diferentes marcas de gasolina, estimándose que para las gasolinas de tipo “regular” está entre un 11 y un 16% vlv, y para las de tipo "super” entre un 6 y un 9 % vlv.
Editorial
Authors: Rivera Edgar Oswaldo Franco
Published: February 2025

Las políticas de Investigación de la Universi­dad se orientan a la integración del Sistema de Inves­tigación de la Universidad y al estudio de los principa­les problemas de la sociedad con enfoque multidisciplinario. El Sistema de Investigación fue instituido en1981 y reactivado en noviembre de 1990.
Los Programas Universitarios de Investiga­ción constituyen parte del subsistema operativo del Sistema de Investigación y son el medio por el cual la Universidad aborda los principales problemas de la sociedad, propiciando la participación de los diferentescentros, institutos o, departamentos de investigación en forma coordinada.
Enfermedad de Chagas en Guatemala: Prevalencia y transmisión
Authors: Matta R. , Vivian L.
Published: February 2025

La enfermedad de Chagas también conocida como Tripanosomiasis americana es considerada como uno de los problemas de salud pública más importantes en América Central y América del Sur. Es una enfermedad propia del hombre y otros mamíferos, caracterizándose por afectar a la población rural de escasos recursos económicos, habiéndose reportado casos desde el sur de Texas (Estados Unidos) hasta la Patagonia (Suramérica). Los últimos reportes de la organización Mundial de la Salud indican que aproximadamente 15-20 millones de habitantes de áreas rurales y urbanas padecen ésta enfermedad y que alrededor de 65 millones están en riesgo de adquirirla.
El agente etiológico de la enfermedad es el protozoo flagelado Trypanosoma cruzi, el cual se encuentra en reservónos humanos y animales. Este parásito es transmitido en la mayoría de los casos a los humanos y otros mamíferos por chinchestreatomíneas de la familia Reduvidae, las cuales al succionar sangre del hospedero, defecan eliminando así el parásito. También puede transmitirse vía transplacentaria, por transfusión de sangre contaminada o por transplante de órganos contaminados.