Tugas Mata Kuliah Seminar Proposal

The aim of this research was to investigate the ability of three native starches from Indonesia to stabilize oil in water emulsion with and without the addition of lecithin as surfactant. Breadfruit, bengkuang (jicama), and rice starches were extracted from local sources in Banda Aceh-Indonesia. Two variables studied were type of starches and the amount of oil added into emulsion (15 and 25%). Proximate analysis showed that the starch content of breadfruit, jicama and rice were 77.57, 67.41, and 80.51% respectively and the amylose content were 20.50, 16.5, and 13.6%. Results showed that the emulsification index (EI) of emulsion prepared with jicama and rice starches were lower than the EI of emulsion stabilized by breadfruit starch. However, the viscosity of breadfruit emulsion was higher than the other two emulsions. Storage stability test in room temperature also demonstrated that oil in water emulsion made from breadfruit starch had the lowest separation rate over storage period compared to jicama and rice emulsions. Overall, stabilization of 25% oil in breadfruit emulsion was slightly better than addition of 15% oil where the visible boundaries or serum layer of the emulsion was in the range of 5-6 ml at the end of storage test. Breadfruit starch was further modified by reacting it with octenyl succinic anhydride (OSA) to produce OSA-modified breadfruit starch. The degree of substitution (DS) of OSA modified breadfruit starch was 0.0231. OSA-modified breadfruit starch is highly potential to be used as food emulsifier and therefore studied further to examine its ability to stabilize oil in water emulsion.

This study was conducted in Indonesia and aimed to examine the effect of rubber production, the dollar exchange rate, and inflation on rubber exports. The data analysis method used was multiple linear regression. The results showed that rubber production and inflation positively and significantly influenced rubber exports, while the dollar exchange rate negatively and significantly influenced rubber exports. Simultaneously, rubber production, the dollar exchange rate, and inflation positively and significantly influenced rubber exports in Indonesia, and the magnitude (R^2) of the effect of the amount of production, dollar exchange rate, and inflation on rubber exports was 0.5979 (59.79%)

Penggunaan metode pembelajaran dalam menyajikan materi pembelajaran sangat berpengaruh terhadap motivasi serta hasil belajar siswa. Penerapan metode cooperative learning tipe make a match merupakan salah satu cara guru untuk membantu siswa dalam memahami materi sejarah sebagai ingatan historis dan ingatan emosional sehingga tumbuh motivasi siswa untuk memahami materi sejarah tersebut.Model Cooperative Tipe Make a Match (membuat pasangan) merupakan salah satu jenis dari metode pembelajaran cooperative. Model ini dikembangkan oleh Lorna Curan (1994). Salah satu cara keunggulan teknik ini adalah peserta didik mencari pasangan sambil belajar mengenai suatu konsep atau topik, dalam suasana yang menyenangkan.

Efectiveness of Sub-District Expansion in Improving Development. This study aims to determine the effectiveness of sub-district expansion in increasing development in Central Insana District, North Central Timor Regency, East Nusa Tenggara Province. Expansion of Subdistricts in Central Insana Subdistrict has been regulated in the Regional Regulation of North Central Timor Number 8 of 2007 with the aim of equitable development, optimizing the implementation of governance and shortening the range  of control of empowerment and community development services and accommodating aspirations that develop in the community. After 12 years running, the District Expansion policy has not shown a positive impact on the community, especially the development aspect. This study uses descriptive qualitative research methods. Data collection techniques used were interviews, documentation and observation. The results showed that the policy of sub-district expansion in increasing development in Central Insana District was not yet effective, because of the weak role of the sub-district in providing services to the community. Budget limitations, inadequate transportation facilities and infrastructure and damaged road conditions, and a lack of active community participation in supporting the implementation of development in Central Insana Subdistrict, are classic reasons. Keywords: effectiveness, expansion, development