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All Journal Jurnal Biologi Tropis Primatika : Jurnal Pendidikan Matematika
Maghfiroh, Hanifatul
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Mathematics

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Peningkatan literasi numerasi terhadap minat baca siswa SMP Negeri 22 Surabaya melalui program pembiasaan literasi berupa komik Inesita, Balqis Tsani; Maghfiroh, Hanifatul; Azizah, Karimah Nuril; Sadieda, Lisanul Uswah; Hanizar, Nuryanti
Primatika : Jurnal Pendidikan Matematika Vol. 13 No. 2 (2024)
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/primatika.v13i2.3293

Abstract

Penelitian ini bertujuan untuk meningkatkan keterampilan pada literasi numerasi pada minat baca peserta didik di SMP Negeri 22 Surabaya melalui implementasi program pembiasaan literasi berupa komik. Penelitian ini menggunakan metode pendekatan kualitatif dengan desain pre dan post-test tanpa kelompok kontrol. Sebanyak 67 siswa dari kelas delapan di SMP Negeri 22 Surabaya dipilih sebagai sampel. Data dikumpulkan melalui tes yang meliputi pre-test dan post-test. Analisis data dilakukan menggunakan metode alur interaktif dengan pendekatan kualitatif, dan data yang relevan dikumpulkan dari berbagai sumber. Hasil penelitian ini menyarankan bahwa program pembiasaan literasi yang menggunakan media komik matematika dapat meningkatkan keterampilan literasi numerasi siswa di SMP Negeri 22 Surabaya.
The Effect of Absorption of The Heavy Metal Lead (Pb), in Depuration Media on The Quality of Seaweed Renderment Maghfiroh, Hanifatul; Rahim, Andi Rahmad
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6999

Abstract

This study aims to examine the effect of lead (Pb) heavy metal absorption in depuration media on the agar quality and yield of seaweed (Gracilaria sp) from local coastal waters, and to assess its potential use in industry. The research method involved analyzing six seaweed samples using atomic absorption spectrophotometry (AAS) to measure Pb content and calculate the dry matter yield. The results showed that the SB samples (SB1, SB2, SB3) did not contain detectable levels of Pb, indicating that their growing environment was relatively free from heavy metal contamination. In contrast, the SS samples (SS1, SS2, SS3) showed detectable levels of Pb, with the highest concentration in SS2 (2.65 mg/kg). The dry matter yield in the SB samples averaged around 20%, while the SS samples had a slightly higher average yield of around 21.5%. These results indicate that the SS samples had a higher dry matter content compared to the SB samples. Based on these findings, it is concluded that the SB samples are safer for industrial use due to the absence of Pb contamination, whereas the SS samples require further treatment to reduce the risk of Pb contamination. This study emphasizes the importance of regular monitoring and testing for heavy metal content in seaweed to ensure product quality and safety, as well as effective environmental management of coastal waters to prevent heavy metal contamination of vital natural resources.
Co-Authors Andi Rahmad Rahim Azizah, Karimah Nuril Hanizar, Nuryanti Inesita, Balqis Tsani Lisanul Uswah Sadieda