Open Journal System (OJS) Universitas Bengkulu
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APLIKASI MICROWAVE ASSISTED EXTRACTION (MAE) PADA EKSTRAKSI PHILODENDRON RED SEBAGAI SUMBER PEWARNA ALAMI
Get PDFPhilodendron Red adalah tanaman hias dengan daun berwarna merah kecoklatan sehingga berpotensi sebagai sumber pewarna alami. Penelitian ini bertujuan untuk mengetahui pengaruh metode Microwave Assisted Extraction (MAE) terhadap karakteristik ekstrak Philodendron red dengan perbedaan waktu (menit) dan daya (watt) serta mengetahui perlakuan terbaik metode Microwave Assisted Extraction (MAE) pada perbedaan waktu (menit) dan daya (watt) untuk menghasilkan pewarna alami. Penelitian dilakukan menggunakan Rancangan Acak Lengkap (RAL) dua faktor yaitu waktu (3 menit, 5 menit, dan 7 menit) dan daya (225 watt dan 315 watt). Analisis data menggunakan Analysis of Varians (ANOVA) dengan uji lanjut Duncan’s Multiple Range Test (DMRT). Hasil penelitian menunjukkan interaksi lama waktu (menit) dan daya (watt) berpengaruh nyata terhadap rendemen, pH, total antosianin, total klorofil, nilai warna (a,b,chroma, dan hue) tetapi tidak berpengaruh nyata pada nilai lightness dan total karotenoid. Perlakuan A3B2 (7 menit; 315 watt) sebagai perlakuan terbaik dengan karakteristik rendemen sebesar 73,98%, nilai L* sebesar 68,24, nilai a* 5,29, nilai b* sebesar 5,31, nilai chroma sebesar 7,74, total antosianin sebesar 33,90 mg/L, dan total klorofil sebesar 2,04 mg/L. Ekstrak Philodendron red berpotensi menjadi pewarna alami terutama warna merah, tetapi kandungan pigmen cukup rendah dibandingkan pewarna lainnya.Philodendron Red adalah tanaman hias dengan daun berwarna merah kecoklatan sehingga berpotensi sebagai sumber pewarna alami. Penelitian ini bertujuan untuk mengetahui pengaruh metode Microwave Assisted Extraction (MAE) terhadap karakteristik ekstrak Philodendron red dengan perbedaan waktu (menit) dan daya (watt) serta mengetahui perlakuan terbaik metode Microwave Assisted Extraction (MAE) pada perbedaan waktu (menit) dan daya (watt) untuk menghasilkan pewarna alami. Penelitian dilakukan menggunakan Rancangan Acak Lengkap (RAL) dua faktor yaitu waktu (3 menit, 5 menit, dan 7 menit) dan daya (225 watt dan 315 watt). Analisis data menggunakan Analysis of Varians (ANOVA) dengan uji lanjut Duncan’s Multiple Range Test (DMRT). Hasil penelitian menunjukkan interaksi lama waktu (menit) dan daya (watt) berpengaruh nyata terhadap rendemen, pH, total antosianin, total klorofil, nilai warna (a,b,chroma, dan hue) tetapi tidak berpengaruh nyata pada nilai lightness dan total karotenoid. Perlakuan A3B2 (7 menit; 315 watt) sebagai perlakuan terbaik dengan karakteristik rendemen sebesar 73,98%, nilai L* sebesar 68,24, nilai a* 5,29, nilai b* sebesar 5,31, nilai chroma sebesar 7,74, total antosianin sebesar 33,90 mg/L, dan total klorofil sebesar 2,04 mg/L. Ekstrak Philodendron red berpotensi menjadi pewarna alami terutama warna merah, tetapi kandungan pigmen cukup rendah dibandingkan pewarna lainnya
PERLUASAN MODEL PENERIMAAN TEKNOLOGI MENGGUNAKAN VARIABEL MINDFULNESS: STUDI KASUS ADOPSI E-WALLET DI KOTA BENGKULU
Get PDFThe use of cashless payment systems continues to increase in line with developments in technology, information and digital communications. This study examines the main determinants of e-wallet use intention and proposes a model of e-wallet adoption, integrating mindfulness as a significant factor. The respondents in this study are e-wallet users living in Bengkulu City aged 17-40 years old. The non-probability sampling technique was used to obtain data samples from respondents. Online survey questionnaires collected respondents of this study through social media such as WhatsApp and Instagram. After adopting the listwise deletion method through Mahalanobis Distance on SEM-AMOS, 257 useable questionnaires were available for analysis. For data analysis, Confirmatory Factor Analysis (CFA), assessment of normality, and regression weights were applied to this research. The result indicates that (1) mindfulness has a positive and significant effect on perceived usefulness; (2) mindfulness has a positive and significant effect on perceived ease to use; (3) perceived usefulness has a positive and significant effect on the intention to use; (4) perceived ease to use has no significant effect on the intention to use; and (5) intention to use has a positive and significant effect on actual use.
Keywords: E-wallet, Mindfulness, Perceived Usefulness, Perceived Ease to use, Intention to Use, Actual Use, TAMPenggunaan sistem pembayaran non-tunai (cashless) terus mengalami peningkatan seiring dengan perkembangan teknologi, informasi, dan komunikasi digital. Penelitian ini mengkaji faktor-faktor yang mempengaruhi adopsi penggunaan e- wallet dengan memperluas model penerimaan teknologi TAM dan menambahkan variabel mindfulness. Responden dalam penelitian ini adalah pengguna e-wallet yang berdomisili di Kota Bengkulu yang berusia 17-40 tahun. Penelitian ini merupakan penelitian kuantitatif dan menggunakan teknik non-probability sampling. Survei dilakukan dengan menyebarkan kuesioner secara online melalui Whatsapp dan Instagram untuk mendapatkan responden. Setelah mengadopsi Mahalanobis Distance pada SEM-AMOS, terdapat 257 responden yang dapat digunakan untuk dianalisis. Analisis data menggunakan Confirmatory Factor Analysis (CFA), penilaian normalitas, dan bobot regresi. Hasil penelitian menunjukkan bahwa (1) mindfulness berpengaruh positif dan signifikan terhadap perceived usefulness; (2) mindfulness berpengaruh positif dan signifikan terhadap perceived ease to use; (3) perceived usefulness berpengaruh positif dan signifikan terhadap intention to use; (4) perceived ease to use untuk menggunakan tidak berpengaruh signifikan terhadap intention to use; dan (5) intention to use berpengaruh positif dan signifikan terhadap actual use pada e-wallet.
Kata Kunci: E-wallet, Mindfulness, Perceived usefulness, Perceived Ease to use, Intention to Use, Actual Use, dan TA
Revolution or Disruption? Implications of Precision Livestock Farming (PLF) for Traditional Livestock Systems in Indonesia
Get PDFPrecision Livestock Farming (PLF) is a modern approach to livestock management that leverages sensors, the Internet of Things (IoT), and artificial intelligence to enhance efficiency, productivity, and animal welfare. In developed countries, PLF is regarded as a revolution in the livestock sector; however, in the context of traditional livestock farming in Indonesia, particularly among small-scale beef cattle farmers, its implementation poses a dilemma between opportunities for transformation and risks of disruption. This systematic review, conducted in accordance with the PRISMA framework, critically examines the implications of PLF for traditional farmers by synthesizing literature from Scopus, Web of Science, ScienceDirect, and Google Scholar (2010-2024). Through thematic analysis of 40 selected studies, we find that PLF offers substantial benefits, including improved feed efficiency, early disease detection, and enhanced animal welfare, but also faces significant barriers, such as high investment costs, limited infrastructure, low digital literacy, and risks of smallholder marginalization. By integrating evidence from both technological and socio-economic perspectives, this review provides a holistic analysis of PLF’s dual role as both a transformative tool and a potential disruptor in developing agricultural contexts. The findings underscore the necessity of context-sensitive adoption strategies, informed by incremental technology introduction, supportive policies, targeted subsidies, cooperative models, and capacity-building initiatives. This study contributes to the literature by offering a policy-relevant framework for aligning PLF with inclusive and sustainable livestock development in Indonesia and similar settings
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE GROUP INVESTIGATION UNTUK MENINGKATKAN KEMANDIRIAN DAN PRESTASI BELAJAR
Get PDFPenelitian ini bertujuan untuk mendeskripsikan penerapan model pembelajaran kooperatif tipe Group investigation untuk meningkatkan kemandirian dan prestasi belajar siswa pada mata pelajaran Bahasa inggris kelas VIII SMP N 1 Mulak Ulu. Desain penelitian yang digunakan adalah penelitian tindakan kelas dan kuasi eksperimen. Subjek penelitian adalah siswa kelas VIII.A semester ganjil tahun pelajaran 2023/2024. Melalui teknik simple random sampling diperoleh sampel kuasi eksperimen adalah kelas kelas VIII.B dan kelas VIII.C di SMP Negeri 1 Mulak Ulu. Instrumen penelitian ini menggunakan lembar observasi dan tes. Data penelitian dianalisis dengan statistik, rata-rata (mean), persentase, dan uji-t. Hasil penelitian menunjukan bahwa penerapan model pembelajaran kooperatif tipe Group Investigation dapat meningkatkan Kemandirian dan prestasi belajar siswa pada mata pelajaran Bahasa Inggris kelas VIII SMP N 1 Mulak Ul
PENGEMBANGAN VIDEO ANIMASI BERBASIS LABORATORIUM VIRTUAL UNTUK MENINGKATKAN PRESTASI BELAJAR
Get PDFPenelitian ini bertujuan untuk mendeskripsikan pengembangan media pembelajaran dengan video animasi berbasis laboratorium virtual dalam meningkatkan prestasi belajar kimia kelas XII SMA Negeri 2 Lahat, mendeskripsikan kelayakan media pembelajaran video animasi berbasis laborotorium virtual yang dikembangkan dalam meningkatkan prestasi belajar kimia kelas XII mata pelajaran kimia, dan mendeskripsikan keefektifan media video animasi berbasis laboratorium virtual yang dikembangkan pada kelas XII Mata pelajaran Kimia. Metode yang digunakan adalah rancangan pengembangan (research and development) dengan subjek penelitian siswa kelas XII MIPA 1 dan MIPA 2 SMA Negeri 2 Lahat. Hasil yang diperoleh adalah pengembangan video animasi berbasis laboratorium virtual dan media pembelajaran dikategorikan “Sangat Layak” dengan nilai rata-rata telaah media 3,85 dan nilai rata-rata telaah materi 3,96. Media pembelajaran dengan video animasi berbasis laboratorium virtual yang dikembangkan efektif dalam meningkatkan prestasi belajar kimia kelas XII SMA Negeri 2 Lahat. Hal ini dapat dilihat pada hasil uji coba terbatas dan uji coba skala luas yang didapatkan berdasarkan hasil pretest dan hasil posttest kelas eksperimen dan kelas kontrol. Pada hasil posttest, didapatkan rata-rata hasil belajar sebesar 82,25 pada kelas eksperimen dan 67,6 pada kelas kontrol yang menunjukkan bahwa media pembelajaran dengan video animasi berbasis laboratorium virtual yang dikembangkan efektif dalam meningkatkan prestasi belajar kimia kelas XII SMA Negeri 2 Laha
PEMANFAATAN ALAT PERAGA EDUKATIF (APE) DALAM PENGEMBANGAN KOGNITIF ANAK USIA DINI
Get PDFPenelitian ini bertujuan untuk mendeskripsikan pemanfaatan Alat peraga Edukatif dalam pembelajaran, untuk mengembangkan kognitif anak usia dini di Taman kanak-kanak ABA Beringin Sakti Kota Pagar Alam. Metode penelitian yang digunakan adalah deskripsi kualitatif. Subjek penelitian adalah Kepala sekolah, Guru, anak yang berusia 4 sampai 6 tahun.Teknik pengumpulan data yang digunakan dalam peneitian ini adalah wawancara, dokumentasi, Observasi, studi pustaka. Teknik analisis data menggunakan langkah-langkah yaitu reduksi data, penyajian data dan penarikan kesimpulan, Untuk keabsahan data menggunakan kredibility, perpanjangan pengamatan, ketergantungan dan kepastian. Hasil penelitian in dapat disimpulkan bahwa pemanfaatan APE, dapat mengembangkan kemampuan kognitif anak usia dini 4 sampai 6 tahun diantaranya : mengenal Bentuk geometri, mengenal Warna. Membuat Kreasi bentuk dari Balok, Mengurutkan benda berdasarkan lima seriasi ukuran atau warna dan Mengklasifikasikan benda ke dalam kelompok yang sama atau sejenis atau berpasangan dengan dua varias
A STUDY OF EIGHTH GRADE STUDENTS AT SMP NEGERI 4 KOTA BENGKULU: STUDENTS' MASTERY IN DEGREES OF COMPARISON
Get PDFThe purpose of this study was to find out the ability of students in grade VIII of SMP Negeri 4 Kota Bengkulu in mastering the degrees of comparison material. This research is case study and using a quantitative descriptive method. The subjects in this study were 64 students of class VIII which were divided into 2 classes, namely class 86 which amounted to 33 students, and class 87 which amounted to 31 students. The instruments used in this research are test which are the main instrument and interview as an additional instrument. The test given to students was 30 items with 3 different types of questions. In analyzing the data, researcher used several formulas. The results showed that students of grade VIII SMP Negeri 4 Kota Bengkulu in the in academic year 2022/2023 were able to use degrees of comparison with a percentage of ability of 68.2%, and the level of student ability was categorized into fair. The problems faced by students of grade VIII SMP Negeri 4 Kota Bengkulu in the academic year 2022/2023 are in the material of degrees of comparison, namely their lack of understanding in using more or most and -er or -est on adjectives and irregular adjective
Integrating deep learning and digital literacy into reading instruction to achieve SDG 4: A study in a high school EFL education context in Central Java
Get PDFThis study investigates integrating deep learning approaches and digital literacy into reading instruction to support the achievement of Sustainable Development Goal 4 (Quality Education) among high school EFL students in Central Java, Indonesia. The study objectives were to evaluate the efficacy of deep learning-based reading strategies in improving students' comprehension, assess their digital literacy levels, and evaluate teachers' perceptions of integrating deep learning and digital literacy in EFL reading classrooms. One hundred seventy-eight tenth-grade students from three public high schools in Central Java participated in this study, which employed a mixed-methods sequential explanatory design. A digital literacy questionnaire and reading comprehension pre- and post-tests were used to gather quantitative data. Semi-structured interviews, teacher focus groups, and classroom observations were used to gather qualitative data. After using immersive learning methodologies backed by digital media resources, pupils' reading comprehension scores significantly improved, according to quantitative studies. There was also a high correlation between students' reading competence and their digital literacy levels. The qualitative data showed greater student participation and high comprehension of the text as observed by teachers accompanied by enhanced engagement, critical thinking, and autonomy of students in reading activities. These results substantiate the integration of deep learning and digital literacy into reading lessons. It raises both cognitive and affective dimensions in EFL contexts. The significant study about pedagogical innovation emphasizes the SDGs, teacher training, and curriculum support that sustain tech-enhanced learning environments in Indonesian secondary schools
Lexical density and syntactic structure on Indonesian and Malaysian applied linguistics Scopus-indexed journal article titles
Get PDFWriting research titles for academic or publication purposes is not easy. The features of titles can be observed in the amount of information they contain and how their structures convey meaning and achieve a particular purpose. Therefore, this study aimed to identify the lexical density level and syntactic structure use in titles of Indonesian and Malaysian Scopus-indexed journals in applied linguistics. It employed a descriptive qualitative research method to analyze 181 article titles using Ure’s (1971) theory of Lexical density and Cheng et al.’s (2012) theory of Syntactic structure. It used the data from the two most recent issues of four published journal articles: SIELE, 3L, IJAL, and GEMA. As a result, it shows that 181 titles fall within the range of very high, high, and medium levels of lexical density, with the very high level being the most dominant. Very high lexical density titles are packed with content words, making them highly information-rich. High lexical density titles also deliver precise information, fitting formal academic writing. Medium lexical density titles strike a balance between content and function words, making them less dense yet more approachable. Furthermore, the titles commonly use three syntactic structures: compound, nominal, and V-ing. The compound structure occurs the most in the data. The findings are expected to contribute to enriching the broader understanding of research title writing practices. Thus, it can be used as a reference for the writers to form the title