8 research outputs found
Pengaruh Faktor Sosiodemografi, Sikap, Dan Kontekstual Terhadap Niat Berwirausaha Siswa
Penelitian ini bertujuan untuk mengetahui pengaruh faktor sosiodemografi, sikap, dan kontekstual terhadap niat berwirausaha siswa SMK di Kabupaten Bantul Daerah Istimewa Yogyakarta. Jenis penelitiannya adalah ex-post facto dengan subjek penelitian 63 siswa yang terdiri atas siswa SMK Muhammadiyah 1 Bantul dan SMK Negeri Sedayu. Metode pengambilan data menggunakan angket dengan skala likert. Analisis data menggunakan teknik analisis regresi. Hasil penelitian menunjukkan bahwa terdapat pengaruh positif dan signifikan antara faktor sosiodemografi, sikap, dan kontekstual terhadap niat berwirausaha siswa SMK. Besarnya sumbangan efektif (R2) untuk masing-masing faktor terhadap niat berwirausaha sebesar 22,04% dari faktor sosiodemografi, 19,82% dari faktor sikap, 32,88% dari faktor kontekstual, dan variabel lain yang tidak dibahas dalam penelitian ini sebesar 25,26%
Effectiveness of Virtual Learning on English Speaking Skill at STMIK Sinar Nusantara Surakarta
Educational institutions have implemented online distance learning and teaching since the COVID-19 pandemic in Indonesia around March 2020. This research was conducted to find the effectiveness and its factors of virtual learning on English speaking skills in the early of pandemic. This study was a descriptive qualitative. This research was conducted at STMIK Sinar Nusantara Surakarta in Central Java. The time of research was started from April until June 2020 and it was conducted for Second-semester students in the academic year of 2019/2020 with 50 students for the number of populations from Information System program. For the research findings, virtual learning was not effective in grammar and fluency aspects and it was less effective in accent and vocabulary aspects for second-semester students of Information System program. Some factors have occurred in those lack of effectiveness, such as, the limitation of time in presenting speaking skill, the inefficiency of lecturer in correcting the students' accent directly, difficulties of students in understanding material, limitations of English students' vocabularies, and tendency of students' speaking presentation based on the textbook
A Purely Green Synthesis of Silver Nanoparticles using Carica papaya, Manihot esculenta and Morinda citrifolia: Synthesis and Antibacterial Evaluations.
Green procedure for synthesizing silver nanoparticles (AgNPs) is currently considered due to its economy and toxic-free effects. Several existing works on synthesizing AgNPs using leaves extract still involve the use of physical or mechanical treatment such as heating or stirring, which consume a lot of energy. To extend and explore the green extraction philosophy, we report here the synthesis and antibacterial evaluations of a purely green procedure to synthesize AgNPs using Carica papaya, Manihot esculenta, and Morinda citrifolia leaves extract without the aforementioned additional treatment. The produced AgNPs were characterized using the ultravioletâvisible spectroscopy, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and antibacterial investigations. For antibacterial tests, two bacteria namely Escherichia coli and Bacillus cereus were selected. The presently employed method has successfully produced spherical AgNPs having sizes ranging from 9 to 69 nm, with plasmonic characteristics ranging from 356 to 485 nm, and energy-dispersive X-ray peak at approximately 3 keV. In addition, the smallest particles can be produced when Manihot esculenta leaves extract was applied. Moreover, this study also confirmed that both the leaves and synthesized AgNPs exhibit the antibacterial capability, depending on their concentration and the bacteria type