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All Journal Alchemy : Journal of Chemistry Pendas : Jurnah Ilmiah Pendidikan Dasar
Jabir, Jabir
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Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology Other

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Distribusi Spasial Logam Berat Besi (Fe) di Perairan Teluk Staring, Sulawesi Tenggara Bahril, Bahril; Armid, Armid; Jabir, Jabir; Takwir, Amadhan; Rahim, Abdul
ALCHEMY Vol 7, No 2 (2019): ALCHEMY: Journal of Chemistry
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.331 KB) | DOI: 10.18860/al.v7i2.7192

Abstract

 Study on spatial distribution of metal Fe in the coastal area of Staring Bay, Southeast Sulawesi has been carried out. This study aims to determine the spatial distributions of heavy Fe in the coastal area of Staring Bay. Sampling was conducted at 12 stations along the bay through the purposive sampling method. Determination of heavy metal Fe concentration was performed utilizing the Atomic Absorption Spectrophotometry (AAS). Spatial analysis was performed with IDW interpolation method using a software ArcGIS 10.3. The results showed that the concentration of metal Fe at 12 stations was in the range of 0.00187 ppm to 0.01296 ppm whereby the highest level was found at station 7 (mouth of the Laonti river). The spatial analysis in 12 stations confirmed that in the coastal areas of Woru-woru village (near the mouth of the Laonti river) to Gala Island and Wandahea village up to Intan Island have been contaminated by metal Fe ranged from 0.0106-0.0117 ppm and 0.0118-0.013 ppm, respectively. The contamination factor of metal Fe was moderate. Based on the values of CF, the highest contamination of heavy metal Fe is at station 7. Keywords: Spatial analysis, Fe, IDW, CF, Staring Bay  Telah dilakukan studi distribusi spasial logam Fe di perairan Teluk Staring, Sulawesi Tenggara. Penelitian ini bertujuan untuk menentukan sebaran spasial logam Fe di perairan Teluk Staring. Pengambilan sampel dilakukan 12 stasiun di perairan teluk dengan metode purposive sampling. Penentuan kadar logam Fe pada sampel air laut menggunakan Atomic Absorption Spectrophotometry (AAS). Analisis spasial dilakukan dengan metode interpolasi IDW menggunakan software ArcGIS 10.3. Hasil penelitian menunjukkan bahwa kadar logam Fe di 12 stasiun penelitian berkisar antara 0,00187-0,01296 ppm dengan kadar tertinggi berada pada stasiun 7 (muara Sungai Laonti). Hasil analisis spasial pada 12 stasiun menunjukkan bahwa di daerah pesisir Desa Woru-woru (dekat muara Sungai Laonti) hingga Pulau Gala dan Desa Wandahea hingga Pulau Intan telah terkontaminasi logam Fe dengan kisaran 0,0106-0,0117 ppm dan 0,0118-0,013 ppm. Faktor kontaminasi logam Fe bersifat moderat. Berdasarkan nilai CF, kontaminasi tertinggi oleh logam Fe terdapat pada stasiun 7. Kata kunci: Analisis spasial, Fe, IDW, CF, Teluk Staring 
PENGARUH MODEL PEMBELAJARAN TIMES GAMES TOURNAMENT (TGT) BERBANTUAN MEDIA PEMBELAJARAN WORDWALL TERHADAP HASIL BELAJAR KOGNITIF SISWA Wahyudi, Dicky; Kurnia Rahmawati, Deva; Mardiani Zain, Ita; Jabir, Jabir
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 9 No. 2 (2024): Volume 09 No. 2 Juni 2024
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v9i2.13915

Abstract

The application of lecture, discussion and question and answer (conventional) methods in social studies subjects for classes VIII A to D is still not optimal in improving students' cognitive learning outcomes. This research aims to determine the effect of the Times Games Tournament (TGT) learning model assisted by Wordwall learning media on students' cognitive learning outcomes. The method used is Quasi Experimental Design with a Non-Equivalent Control Group Design pattern. The sample used was 62 students in class VIII D and VIII B. The research results show that the average learning outcome for class VIII D is 83.29. This result is greater than the average achievement for class VIII B of 77.12. Based on the results of hypothesis testing using the Independent Sample T Test, the significance value was 0.013, less than 0.05, meaning H0 was rejected and H1 was accepted. The application of the Times Games Tournament (TGT) learning model assisted by Wordwall learning media has a significant effect on students' cognitive learning outcomes.
Co-Authors Abdul Rahim Amadhan Takwir Armid Armid, Armid Bahril, Bahril Dicky Wahyudi Ita Mardiani Zain Kurnia Rahmawati, Deva