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All Journal Mimbar PGSD Undiksha Jurnal Ilmiah Profesi Pendidikan Ruwa Jurai: Jurnal Kesehatan Lingkungan
Kurniasih, Anisa
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Education Environmental Science Health Professions Public Health

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PEMANFAATAN AMPAS TEBU SEBAGAI ARANG AKTIF DENGAN AKTIVATOR LARUTAN BELIMBING WULUH (Averrhoa bilimbi L.) Kurniasih, Anisa; Pratiwi, Dina Audia; Amin, Muhammad
Ruwa Jurai: Jurnal Kesehatan Lingkungan Vol. 14 No. 2 (2020)
Publisher : Poltekkes Kemenkes Tanjung Karang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26630/rj.v14i2.2287

Abstract

One of the efforts to utilize bagasse is activated carbon which can be used as an adsorbent for the pharmaceutical industry, foodstuffs, and water purification to remove odors, tastes and colors. So far, the raw materials for making activated carbon use coal and coconut shells, while the activator uses chemicals such as KOH, NaOH, H2SO4, HCl, and others. The manufacture of activated carbon is carried out in three stages, namely the process of dehydration, carbonization, and activation. Bagasse that has been dehydrated for 2 days using sunlight, is carbonized for 1 hour at a temperature of 4500C. Carbon is activated using starfruit extract with a ratio of extract: distilled water, 100%: 0%, 75%: 0%, 50%: 505, 25%: 75%, and the time is varied, namely for 4 hours, 8 hours, 16 hours, and 24 hours.From the research results as much as 4.000 grams of bagasse carbonized to produce 170 grams of carbon. The results of the analysis of the proximate content in bagasse activated carbon have met the Indonesian National Standard (SNI 06–3730–1995), namely the best Total Moisture Content of 2.88%, the best Volatile Matter of 6.88%. The best ash was 3.11%. The best-fixed carbon was 86.30%. The iodine number produced from the bagasse activated carbon is 937.9686 mg / g.The Iodine number has met the requirements of the Indonesian Industry Standard (SII 0258-88), which is more than 750 mg / g, indicating that the activation of activated carbon using starfruit is very reactive. Starfruit can be used as an environmentally friendly activator in making activated carbon.
Cooperative Learning Type Group Investigation on Critical Thinking Ability at PGSD Students Kurniasih, Anisa; Sartono, E. Kus Eddy; Adi, Banu Setyo; Gularso, Dhiniaty
MIMBAR PGSD Undiksha Vol. 12 No. 3 (2024): October
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpgsd.v12i3.80925

Abstract

The minimum skill of students in critical thinking to solve a problem can be an obstacle in teaching and learning processes and development of their intellectual potential. This research aims to analyze how much influence the cooperative learning type group investigation model has on student critical thinking skills in social studies courses. This research uses a quasi-experimental two-group pretest-posttest design with a sample of 63 with 34 students (experimental class) and 29 students (control class). Data were collected through observation method and tests (pre-test and post-test). Data were analysed using quantitative descriptive analysis techniques, while hypothesis testing was conducted using the Wilcoxon method. The results showed that the hypothesis tested via Wilcoxon test was in the control class where the analysis results indicated a significance value of 0.071 in the control group and a significance value of >0.001 in the experimental group. Thus, the result in the experimental class is >0.001 which is >0.05, there is a difference in the group investigation type cooperative learning model on students' critical thinking skills in class A6-23. The results indicated that group investigation, as a cooperative learning model is effective in improving student critical thinking skills.
Assessment Awal Pada Warga Binaan Dengan Hambatan Pendengaran Tanpa Latar Belakang Pendidikan Formal di Lapas Kelas III Rangkasbitung Kurniasih, Anisa; Bakhtiar, Dody; Mulia, Dedi
Jurnal Ilmiah Profesi Pendidikan Vol. 11 No. 2 (2026): Mei (on progress)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v11i2.4897

Abstract

Warga binaan dengan hambatan pendengaran memerlukan layanan pendidikan dan pembinaan yang sesuai dengan kebutuhan komunikasinya, terutama bagi individu yang tidak memiliki latar belakang pendidikan formal. Keterbatasan akses komunikasi dapat memengaruhi kemampuan akademik, interaksi sosial, serta proses adaptasi di lingkungan lembaga pemasyarakatan. Penelitian ini bertujuan untuk mengidentifikasi hasil assessment awal pada warga binaan dengan hambatan pendengaran tanpa latar belakang pendidikan formal di Lapas Kelas III Rangkasbitung. Penelitian menggunakan pendekatan kualitatif deskriptif dengan metode observasi, wawancara, dan dokumentasi. Subjek penelitian berjumlah satu orang warga binaan berusia sekitar 25 tahun dengan riwayat pendidikan yang sangat terbatas. Hasil penelitian menunjukkan bahwa subjek memiliki keterbatasan dalam kemampuan komunikasi, terutama dalam penggunaan bahasa isyarat dan membaca gerak bibir, serta lebih mengandalkan gesture sebagai bentuk komunikasi. Pada aspek akademik, subjek belum mampu membaca dan mengenal huruf dengan baik, namun memiliki kemampuan menulis yang relatif lebih baik. Dalam aspek sosial, subjek cenderung mengalami isolasi dan perundungan akibat hambatan komunikasi. Intervensi awal berupa pengenalan bahasa isyarat dasar menunjukkan peningkatan kemampuan komunikasi dan kepercayaan diri subjek. Penelitian ini menyimpulkan bahwa assessment awal penting dilakukan sebagai dasar penyusunan layanan pembinaan dan pendidikan yang inklusif bagi warga binaan dengan hambatan pendengaran.
Co-Authors Bakhtiar, Dody Banu Setyo Adi Dhiniaty Gularso Kus Eddy Sartono Muhammad Amin Mulia, Dedi Pratiwi, Dina Audia