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PENERAPAN PISAU BAJAK ERGONOMIS DI DAERAH LAHAN KERING I Ketut Widana; I Ketut Sutapa; Ni Wayan Sadiyani
Bhakti Persada Jurnal Aplikasi IPTEKS Vol 1 No 1 (2015): November 2015
Publisher : P3M Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (775.149 KB)

Abstract

Program Iptek Bagi Masyarakat (IbM) bagi kelompok tani di Desa Batunya Baturiti Tabanan bertujuan untuk meningkatkan kualitas dan kuantitas tanah olahan sehingga didapatkan produktivitas yang setinggi-tingginya. Kualitas tanah olahan dikatakan baik bilamana agregat atau butir-butir tanah terdiri dari butiran kecil yang memungkinkan terjadinya sirkulasi oksigen ketika tanah ditanami, sedangkan kuantitas tanah olahan adalah jumlah tanah dalam meter persegi yang mampu diolah tiap satuan waktu. Dengan kualitas tanah olahan yang baik petani akan mampu menanam bibit lebih banyak jika dibantingkan jika tanah olahan terdiri dari bongkahan-bongkahan kasar tidak merata. Pisau bajak atau yang lebih umum disebut singkal memegang peranan penting ketika proses pengolahan tanah akan dilakukan. Pisau bajak yang selama ini dipakai oleh warga kelompok tani adalah pisau bajak existing yang memiliki kelemahan pada bentuk mata pisau yang tidak bisa dibelokkan atau dibuat membentuk sudut, sehingga tidak mampu menjangkau tanah yang berada di pinggir pematang. Kira-kira 1 meter di sepanjang pematang tanah garapan tidak bisa dikerjakan karena alasan teknis, yaitu terhalang oleh roda traktor. Tanah-tanah tersebut, ditambah tanah di setiap sudut petak ladang terpaksa harus dikerjakan dengan tenaga tani upahan yang tentunya memerlukan biaya tambahan. Dengan mempertimbangkan adanya kemungkinan untuk upaya perbaikan, anggota kelompok tani Kembang Sari Batunya Bedugul sepakat berkolaborasi dengan para akademisi Politeknik Negeri Bali untuk mendapatkan solusi. Ada tiga desain yang ditawarkan kepada kelompok tani Kembang Sari, Desa Batunya Kecamatan Baturiti Tabanan Bali. Pertama, pisau bajak dengan empat mata pisau. Desain ini mengadopsi model pisau bajak yang dipakai oleh petani di Negara Inggris. Kinerja pisau bajak empat mata cukup baik, namun kurang disukai oleh petani karena agak berat dan tidak mampu menghalau sampah. Pisau bajak bermata dua juga memberi harapan cerah karena mampu meningkatkan produktivitas hampir 12%, namun sebagaimana juga pisau bajak bermata empat, pisau bajak ini memiliki kelemahan pada desain yang kurang fleksibel serta relatif berat. Mempertimbangkan kelemahan kedua desain di atas, pilihan kemudian jatuh pada desain yang ketiga, yaitu sebuah pisau bajak multi fungsi yang ergonomis. Multi fungsi karena posisi pisau dapat diatur sesuai dengan kebutuhan. Ergonomis karena ukurannya memakai antropometri petani. Produktivitas kerja meningkat cukup signifikan saat pisau bajak jenis ini diaplikasikan pada tanah lahan kering.
Implications of Visual Complaints on Student Learning Achievement Ni Wayan Sadiyani; I Ketut Widana; I Nyoman Sutarna
Soshum: Jurnal Sosial dan Humaniora Vol 9 No 3 (2019): November 2019
Publisher : Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/soshum.v9i3.1245

Abstract

This research is a study of the effect of visual complaints on learning achievement. High and low visual complaints are strongly influenced by student mobility or motor activity. Mobility can also maintain concentration to be maintained at a certain time. Class mobility is carried out through simple interactive learning, which is an effort to invite students to always move and always be active in the learning process. The long-term goal of research is to obtain effective learning strategies in vocational universities, while the short-term goal of research is to obtain learning methods in English subjects that are best able to provide optimal results on student academic achievement. Departing from the problem that the concentration of students decreases in line with the length of the lecture and the lack of student interaction in the classroom, a strategy is made that allows the concentration of students to be maintained during the lecture process by increasing student mobility in the classroom. To find out the impact of the treatment/ intervention on the subject's condition, a real experiment will be conducted using the two period cross over design. The assessment of the quality of the learning process was carried out with 2 cycles of study, in which each cycle was ended by giving a test/questionnaire. Data were analyzed descriptively qualitatively. Student learning achievements in the form of final grades are calculated according to the grade with the following weighting: 10% daily quiz/test + 10% assignment + 10% report + 30% Middle Semester Exam + 40% Final Semester Examination. The results showed that high visual complaints can reduce concentration and reduce student achievement.
STUDENT PERSPECTIVES ON THE EFFECTIVENESS OF E-PORTFOLIO BASED DIGITAL MODULES IN A HYBRID LEARNING ENVIRONMENT: A CASE STUDY IN BUSINESS ADMINISTRATION I Putu Yoga Laksana; Ni Ketut Suciani; Gary P. Boyce; Putu Tika Virginiya; Ni Wayan Sadiyani
Curricula : Journal of Teaching and Learning Vol. 8 No. 1 (2023): Curricula: Journal of Teaching and Learning
Publisher : LLDIKTI Wilayah X

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (203.73 KB)

Abstract

This study explores students' perceptions regarding the effectiveness of e-portfolio-based digital modules in a hybrid learning environment. The study involved 77 students in the Business Administration Department of a vocational college during the 2021/2022 academic year. Data was collected through a questionnaire with five aspects of e-module implementation and semi-structured interviews. The results indicate that the e-module created has a substantial impact on students' learning, both online and offline. Experts have previously indicated that e-portfolios allow students to build their independent learning environments, and students in this study confirm that access to electronic modules through smartphones offers a new learning approach. However, further development of the module into web-based materials is recommended to help students learn more efficiently. Overall, the integration of e-portfolio-based digital modules in a hybrid learning environment provides students with positive effects on their independent learning process.
Effect Size Digital Mathematics Textbook in Blended Learning Assisted by Schoology Improves Mathematical Problem Solving Ability for Polytechnic Students I Ketut Darma; I Gede Made Karma; I Made Anom Santiana; Ni Wayan Sadiyani
SOSHUM : Jurnal Sosial dan Humaniora Vol. 13 No. 1 (2023): March 2023
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/soshum.v13i1.101-108

Abstract

This study aims to determine the effect size of digital mathematics textbooks in blended learning assisted by Schoology to improve mathematical problem-solving abilities in polytechnic students. The research was conducted at the Bali State Polytechnic (PNB), using the Research & Development method with a 4-D model (define, design, develop, and disseminate). Currently, the dissemination stage is carried out through an effectiveness test using a quasi-experiment approach, with a one-group pretest-posttest design. The subjects are PNB engineering students in 2020/2021, and 10 classes are taken by purposive sampling. Data were collected using a mathematical problem-solving ability test and analyzed using a t-test, N-Gain scores, and effect size. The results of the analysis show that the effect size of digital mathematics textbooks to improve mathematical problem-solving skills in Schoology-assisted blended learning is very large. The implication is that increasing the ability to solve mathematical problems through blended learning assisted by Schoology for polytechnic students will be quite effective if it is facilitated by digital mathematics textbooks.