4 research outputs found

    Valorization of Waste Textile Dyeing by Immobilized Fungus Daedalopsis Eff. Confragosa in Sawdust

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    This study aims to determine optimal valorization of textile dyeing by immobilized fungus Daedalopsis Eff. Confragosa in sawdust as well as the quality of the valorization, which covers Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Total Suspended Solids (TSS), pH, color, and level of toxicity. This fungus is obtained from plantation areas in Negara, Bali. Textile dyeing wastewater is taken from the Mama & Leon textile dyeing industry, Tabanan Bali. The optimum condition needed to process the dyeing waste is at pH 4 with eight days of incubation. Field-scale textile waste treatment in a reactor containing the immobilized fungus Daedaleopsis eff. confragosa in sawdust for eight days can reduce color, TSS, COD, and BOD by 79.78%, 779.11%, 88.307%, and 82.932%. Furthermore, textile waste processing results in a lower level of toxicity compared to the one before processing. The level of toxicity of wastewater before it is treated is mildly toxic. Meanwhile, the level of toxicity after treatment is non-toxic. Thus, a further study to test the result of the study on a large scale is important to ensure that this method is applicable for a practical purpose

    Pengaruh Media Pembelajaran Berbasis Unity 3D Pada Materi Tata Surya

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    The research aims to determine: 1) The average learning outcomes of the control class; 2) Average experimental class learning outcomes; 3) The difference in the average learning outcomes of the control class and the experimental class. Experimental research method, with a quasi experiment with a one group pre-test and post-test design. Sampling used purposive sampling. Data collection techniques and tools use measurement techniques in the form of learning outcomes tests. Data analysis uses descriptive and inferential analysis. The research results show: 1) The average learning outcome for the control class is 72.93 in the good category. 2) The average learning result for the experimental class was 79.87 in the very good category. 3) The difference in the average learning outcomes of the control class and the experimental class using the t-test statistical test, namely Separated Variance, obtained tcount = 5.932 and ttable = 2.064 with a significance level of 0.05. So it can be concluded that there is a difference in the average learning outcomes of the control class and the experimental class. &nbsp

    Improving Scientific Literacy in Primary Schools Using Experimental Methods

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    The research aims to increase scientific literacy in science learning using experimental learning methods, especially magnetic material in class IV SDK BOBA. The type of research used in this research is classroom action research where the research subjects are class IV students at SDK BOBA. This research was carried out in two cycles with the research stages used including planning, implementation, observation, and reflection stages. The research results showed that through the experimental method to increase students\u27 scientific literacy in aspects of science as a body in cycle 1, it was 37.5% with very poor criteria. In contrast, in cycle 2, the percentage was 56.5%, with poor criteria and an increase of 19%. The percentage of the science aspect as a way to investigate in cycle 1 was 56.25% with poor criteria, while in cycle 2, the percentage was 75% with good criteria and increased by 18.75%. The percentage of the science aspect as a way of thinking in cycle 1 was 37.5% with very poor criteria, while in cycle 2, the percentage was 75% with good criteria and an increase of 37.5%. The percentage in the science aspect of the interaction between science, technology, and society in cycle 1 was 56.25% with poor criteria. In contrast, in cycle 2, the percentage was 75% with good criteria and increased by 18.5%. By using this method, students can develop critical thinking skills because, through this, students can experience an experimental process that begins with observing, analyzing, and then concluding

    PELATIHAN DAN PENDAMPINGAN PELAKSANAAN PEMBELAJARAN DARING BERBASIS MULTIMEDIA BAGI GURU SAINS DI SMP DAN SMA CITRA BAKTI

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    Dampak dari merebaknya pandemi COVID-19 telah mempengaruhi banyak aspek dalam kehidupan manusia. Tidak berbeda pula dengan para peserta didik dari tingkat SD sampai Perguruan Tinggi yang turut merasakan dampak pandemi ini. Kegiatan pembelajaran daring menjadi salah satu alternatif untuk memberikan pelayanan kegiatan pembelajaran yang praktis dan fleksibel. Namun demikian, pengembangan kegiatan pembelajaran daring yang efektif dan efisien masih menjadi tantangan tersendiri bagi para guru. Menyikapi permasalahan ini, dosen dan mahasiswa STKIP Citra Bakti melakukan kegiatan pengabdian dalam bentuk pelatihan dan pendampingan pelaksanaan pembelajaran menggunakan multimedia power point dan bandicam bagi guru sains di SMP dan SMA Citra Bakti. Tujuan kegiatan pengabdian ini adalah untuk memberikan pemahaman kepada para guru terkait penggunaan multimedia dalam proses pembelajaran daring. Kegiatan ini melibatkan dua guru SMP Citra Bakti dan empat guru SMA Citra Bakti yang didampingi oleh lima orang dosen serta dibantu oleh lima mahasiswa program studi pendidikan IPA STKIP Citra Bakti. Hasil dari kegiatan pengabdian ini menunjukkan bahwa terdapat perubahan pemahaman kemampuan guru dalam menggunakan multimedia pada proses pembelajaran daring yang dibuktikan dengan hasil angket pemahaman guru yang menunjukkan adanya peningkatan presentase dari 58% menjadi 88,6
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