Abstrak: Penilitian ini bertujuan untuk mengetahui pengaruh video praktikum dengan modul elektronik terhadap keterampilan proses dan besar peningkatan keterampilan proses pada materi stokiometri siswa kelas X SMAN 2 Tidore Kepulauan.Jenis penelitian yang digunakan adalah penelitian eksperimen. Desain penelitian adalah OneGroup Pretest-Postest Design. Populasi penelitian adalah siswa kelas X SMAN 2 Tidore Kepulauan. Sampel penelitian adalah kelas X1 yang dipilih secara random. Teknik analisis data melalui analisis statistik deskriptif dan analisis statistik inferensial menggunakan SPSS 16. Hasil uji hipotesis diperoleh sig< 0,05 dan t hitung > t tabel maka penggunaan video praktikum dan modul elektronik berpengaruh terhadap keterampilan proses siswa. Nilai Gain adalah 85% menunjukkan interpretasi tinggi terhadap peningkatan keterampilan proses siswa. Kata kunci: keterampilan proses, modul elektronik, video praktikum Abstract: This study aimed to determine the effect of practicum video with electronics module toward process skills and how far the influence of stoichiometry materials of the grade X of SMA

The optimization of molecular geometry, study of the quantitatife structureactivity relationship (QSAR) and multilinear regression (MLR) on derivatives benzopirazine compounds have been conducted with substitution groups electron (R7) donors such as:-Br,-COOH,-NH2,-NH3,-OH and-C5H6. Molecular structure model have been done with computationally using hyperchem 8.0.10 sofware. Results geometry optimization using the semi-emperical AM1 method show the total energy of each compound by A1-A6. Determine of the relationship between descriptors included Log P, Polari, SAG, SAA, EH, EHOMO, ELUMO, ΔEG, MD and clean charge with antimalarial activity (IC50 Experiments) shows a correlation. Descriptor show a relationship with antimalarian activity (IC50 Experiments) then, determined the best QSAR equal model condocted with multilinear regression analysis using SPSS 22 program. The results of analysis obtained for the best QSAR equation model found in model 4 equation: Log 1/IC50 = 2.357-(0.041) EH + (0.297) Polari-(0.

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South Halmahera is one of the cocoa-producing centers in North Maluku, but the pulp of cocoa is less noticed and assumed to be not important in commercial purpose and is largely disposed as agroindustry residue. This study aimed to characterize the cocoa pulp from southern Halmahera for bioethanol production. Survey and observation methods were conducted to obtain bioethanol feedstock from cocoa pulp. Cocoa pulps mucilage is a waste that can be processed into bioethanol products with high economic value. The results of this study indicated that theaverage of 100kg of cocoa beans produced 5-8 litters of mucilage juice residues. The results of this study indicated that cocoa pulp from southern Halmahera had the optimum time for the fermentation process for 12 days. The level of alcohol produced by fermentation was 4.85%, and this level was a low category.

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