jumriana rahayu ningsih - Academia.edu (original) (raw)

Uploads

Papers by jumriana rahayu ningsih

Penelitian ini bertujuan untuk mengetahui hasil belajar siswa pada materi struktur atom dengan me... more Penelitian ini bertujuan untuk mengetahui hasil belajar siswa pada materi struktur atom dengan menggunakan model pembelajaran Model Eliciting Akctivities (MEA) dan Relating, Experiencing, Applying, Cooperating dan Transfering (REACT) di kelas X IPA SMAN 1 Inuman. Jenis penelitian adalah ekdperimen dengan waktu pengambilan data tanggal 30 September- 29 oktober. Sampel dalam penelitian ini adalah kelas X IPA 1 sebagai eksperimen 1 dan X IPA 2 sebagai eksperimen 2. Teknik pengambilan sampel menggunakan teknik cluster random sampling. pengumpulan data dilakukan dengan metode tes, observasi, dan dokumentasi. Hasil analisis data menunjukan bahwa adanya perbedaan antara kelas eksperimen 1 dan eksperimen 2. Hasil penelitian menunjuk rata-rata nilai post-test adanya peningkatan dari skor pos-test pada kedua kelas eksperimen dengan nilai rata-rata kelas eksperimen 1 Model Eliciting Activities (MEA) 85,00 dan kelas eksperimen 2 Relating, Eksperiencing, Applying, Cooperating Transfering (REACT)...

Journal of Chemistry Education and Integration, Feb 19, 2022

This research on the development of animated video media using the kinemaster application aims to... more This research on the development of animated video media using the kinemaster application aims to determine the feasibility of chemistry learning media on hydrocarbon materials for SMAN 1 Inuman. The data collection instruments used were material expert validation sheets, media expe rt validation sheets, linguist validation sheets and student response validation sheets. The data analysis technique used is by calculating the percentage score of the validation assessment. The results showed that the validation results met the valid categories of material experts by 91.93%, media experts by 90.00%, and linguists by 90.47%. This learning media also meets the valid category from the results of student responses with v alidation gains of 91.59%. Based on these results, it can be concluded tha t the animated video learning media is very suitable to be used as a medium for learning chemistry on hydrocarbon materials .

Progress in Photovoltaics: Research and Applications, 1999

Abstract Two major opportunities for increasing the performance of crystalline silicon solar cell... more Abstract Two major opportunities for increasing the performance of crystalline silicon solar cells involve reducing their thickness and reducing the losses associated with their front metallic grid contacts. Front grid contacted thin epitaxial silicon solar cells based on the ...

The identification of heavy metals Hg, Pb and Cd in the Batang Kuantan River, Kuantan Singingi Re... more The identification of heavy metals Hg, Pb and Cd in the Batang Kuantan River, Kuantan Singingi Regency has been carried out successfully. Heavy metals are measured not only from their heavy metal content such as Hg, Pb and Cd but also from the pH level of the river flow itself. The research location is at the Batang Kuantan River, which is measured from 3 points. Changes in Data Observed / Measured are the quality levels of heavy metals in the waters. The research model used includes field research using survey and laboratory methods. The research design was analyzed using the Atomic Absorption Spectometer (AAS). The water sample was given HNO3 until it was acidic and filtered so that there was no sedimentation, then analyzed by AAS. Heavy metal analysis result data technique is compared with quality standard of government regulation no 82 of 2001 regarding water pollution control and water quality management. Pb did not have a problem because the levels were not found. Whereas for ...

Jambura Journal of Chemistry

Limbah cangkang bekicot (Achatina fulica) memiliki potensi untuk dikembangkan sebagai sumber Kals... more Limbah cangkang bekicot (Achatina fulica) memiliki potensi untuk dikembangkan sebagai sumber Kalsium Oksida (CaO). Limbah cangkang bekicot (Achatina fulica) memiliki kandungan mineral kalsium karbonat (CaCO3) yang tinggi. CaCO3 dapat didekomposisi menjadi CaO pada pemanasan suhu tinggi. Dalam penelitian ini, CaO disintesis dari Limbah cangkang bekicot (Achatina fulica) dikalsinasi 900 °C selama 10 jam (LCB-900-10) dan kemudian CaO yang dihasilkan dari proses kalsinasi dikarakterisasi menggunakan X-Ray Diffraction (XRD) dan XRay Fluorocense (XRF). Dari hasil difraktogram XRD senyawa CaO dari LCB-900-10 terdapat puncak lime yang berturut-turut beserta nilai intensitas relatif yang cukup besar di antaranya adalah pada 2θ = 32,1767°(37,9%); 37,3224°(100%); 53,8253°(55,42%); 64,1206° (15,76%); 67,3433° (16,32%); 79,6249° (5,08%); 84,7873° (0,22%); 88,4925° (5,35%); 91,4306° (14,88%), dengan kandungan CaO dilihat dari karakterisasi menggunakan XRF sebesar 98,629%.Limbah cangkang bekicot (...

Penelitian ini bertujuan untuk mengetahui hasil belajar siswa pada materi struktur atom dengan me... more Penelitian ini bertujuan untuk mengetahui hasil belajar siswa pada materi struktur atom dengan menggunakan model pembelajaran Model Eliciting Akctivities (MEA) dan Relating, Experiencing, Applying, Cooperating dan Transfering (REACT) di kelas X IPA SMAN 1 Inuman. Jenis penelitian adalah ekdperimen dengan waktu pengambilan data tanggal 30 September- 29 oktober. Sampel dalam penelitian ini adalah kelas X IPA 1 sebagai eksperimen 1 dan X IPA 2 sebagai eksperimen 2. Teknik pengambilan sampel menggunakan teknik cluster random sampling. pengumpulan data dilakukan dengan metode tes, observasi, dan dokumentasi. Hasil analisis data menunjukan bahwa adanya perbedaan antara kelas eksperimen 1 dan eksperimen 2. Hasil penelitian menunjuk rata-rata nilai post-test adanya peningkatan dari skor pos-test pada kedua kelas eksperimen dengan nilai rata-rata kelas eksperimen 1 Model Eliciting Activities (MEA) 85,00 dan kelas eksperimen 2 Relating, Eksperiencing, Applying, Cooperating Transfering (REACT)...

Journal of Chemistry Education and Integration, Feb 19, 2022

This research on the development of animated video media using the kinemaster application aims to... more This research on the development of animated video media using the kinemaster application aims to determine the feasibility of chemistry learning media on hydrocarbon materials for SMAN 1 Inuman. The data collection instruments used were material expert validation sheets, media expe rt validation sheets, linguist validation sheets and student response validation sheets. The data analysis technique used is by calculating the percentage score of the validation assessment. The results showed that the validation results met the valid categories of material experts by 91.93%, media experts by 90.00%, and linguists by 90.47%. This learning media also meets the valid category from the results of student responses with v alidation gains of 91.59%. Based on these results, it can be concluded tha t the animated video learning media is very suitable to be used as a medium for learning chemistry on hydrocarbon materials .

Progress in Photovoltaics: Research and Applications, 1999

Abstract Two major opportunities for increasing the performance of crystalline silicon solar cell... more Abstract Two major opportunities for increasing the performance of crystalline silicon solar cells involve reducing their thickness and reducing the losses associated with their front metallic grid contacts. Front grid contacted thin epitaxial silicon solar cells based on the ...

The identification of heavy metals Hg, Pb and Cd in the Batang Kuantan River, Kuantan Singingi Re... more The identification of heavy metals Hg, Pb and Cd in the Batang Kuantan River, Kuantan Singingi Regency has been carried out successfully. Heavy metals are measured not only from their heavy metal content such as Hg, Pb and Cd but also from the pH level of the river flow itself. The research location is at the Batang Kuantan River, which is measured from 3 points. Changes in Data Observed / Measured are the quality levels of heavy metals in the waters. The research model used includes field research using survey and laboratory methods. The research design was analyzed using the Atomic Absorption Spectometer (AAS). The water sample was given HNO3 until it was acidic and filtered so that there was no sedimentation, then analyzed by AAS. Heavy metal analysis result data technique is compared with quality standard of government regulation no 82 of 2001 regarding water pollution control and water quality management. Pb did not have a problem because the levels were not found. Whereas for ...

Jambura Journal of Chemistry

Limbah cangkang bekicot (Achatina fulica) memiliki potensi untuk dikembangkan sebagai sumber Kals... more Limbah cangkang bekicot (Achatina fulica) memiliki potensi untuk dikembangkan sebagai sumber Kalsium Oksida (CaO). Limbah cangkang bekicot (Achatina fulica) memiliki kandungan mineral kalsium karbonat (CaCO3) yang tinggi. CaCO3 dapat didekomposisi menjadi CaO pada pemanasan suhu tinggi. Dalam penelitian ini, CaO disintesis dari Limbah cangkang bekicot (Achatina fulica) dikalsinasi 900 °C selama 10 jam (LCB-900-10) dan kemudian CaO yang dihasilkan dari proses kalsinasi dikarakterisasi menggunakan X-Ray Diffraction (XRD) dan XRay Fluorocense (XRF). Dari hasil difraktogram XRD senyawa CaO dari LCB-900-10 terdapat puncak lime yang berturut-turut beserta nilai intensitas relatif yang cukup besar di antaranya adalah pada 2θ = 32,1767°(37,9%); 37,3224°(100%); 53,8253°(55,42%); 64,1206° (15,76%); 67,3433° (16,32%); 79,6249° (5,08%); 84,7873° (0,22%); 88,4925° (5,35%); 91,4306° (14,88%), dengan kandungan CaO dilihat dari karakterisasi menggunakan XRF sebesar 98,629%.Limbah cangkang bekicot (...