Judul: Golongan senyawa insektisida dari ekstrak bungkil biji jarak pagar
Abstrak: Jatropha can produce biofuel such as a biodiesel. Biodiesel milling produces waste or dregs which contains approximately 27% of crude protein that can be used as an animal food. However, its use is still limited due to its toxic compound which can be used as a biopesticide.This research yielded an n-hexane extract having the highest activity toward Crocidolomiu pavonaita instar I1 with the yield of 50.64%. This extract more potential as biopesticide as compared with synthetic insecticide (Decis 2.5 EC). After several phases of separation involving column chromatography, this active extract consists of three fractions. Characterization of the fraction was carried out on the most active fraction toward C. pavonana instar 11. Gas chromatography analysis showed that this active fraction consist of 12 compounds and infrared spectrum showed fknctional groups of -NH, -C-H from CH2 and CH3, and C=O. Based on qualitative analysis, this fraction was classified as alkaloid and terpenoid compounds, and molecular weight of each compound was in the range %om 281 to 486.
Keyword: 

Judul: Pengembangan proses pembuatan biodiesel jarak pagar (Jatropha curcas L.) melalui transesterifikasi In Situ, katalis heterogen dan detoksifikasi, Process development of biodiesel production from jatropha curcas L. via in situ transesterification, heterogeneous catalysis and detoxification
Abstrak: Semenjak dikeluarkannya kebijakan pemerintah mengenai energi terbarukan berdasarkan Peraturan Pemerintah omor 5 tahun 2006 dan Instruksi Presiden omor 1 tahun 2006, program nasional pengembangan tanaman jarak pagar sebagai sumber minyak nabati untuk pembuatan biodiesel digerakkan secara besar-besaran. Namun demikian, program pengembangan tanaman jarak pagar tidak berjalan sesuai dengan yang diharapkan karena petani dan investor merasa bahwa investasi pada komoditas ini tidak layak secara ekonomis. Salah satu masalah yang dihadapi oleh petani adalah rendahnya nilai jual biji jarak pagar yang mereka hasilkan. Masalah rendahnya nilai jual ini dapat diatasi apabila biji jarak dilihat tidak saja sebagai penghasil minyak, namun juga dilihar potensinya sebagai sumber pakan kaya protein. Dengan perubahan cara pandang itu, maka harga biji jarak pagar per kilogram diharapkan dapat dinaikkan sehingga komoditas ini menjadi menarik untuk diusahakan sebagai sumber minyak nabati untuk dikonversi menjadi biodiesel melalui proses transestrifikasi., Jatropha curcas is one source of vegetable oils to be developed as a prospective raw material of biodiesel production. Beside oil, its seed cakes, by-product of oil extraction, contains high protein which is potential for feed source, if the toxic compounds can be removed. Based on free fatty acid (FFA) content of the oil, jatropha can be distinguished into two types: jatropha that has oil with low FFA content (1.03 ± 0,10%) and one that has high content of FFA (± 6.99 %).
Keyword: Jatropha curcas, Calcium oxide, Techno-economic, Life cycle assassment, Biodiesel production, Heterogeneous catalysis

Judul: Implementation of Spatio-Temporal Change Query in Relational Database.
Abstrak: Geographic object changes in various views. Object changes are recorded using a model of static storage. No historical connection between old version data and new version data has been built. For that, a storage model of spatio-temporal queries that can analyze spatio-temporal changes has been developed. The object changes the geometry are grouped according to the taxonomy of Spatio-Temporal Pattern Change. This research has been able to apply the query patterns change including born, expand, merge, contract, split, normal and die. This query based on geometric (area) changes. The implementation of spatio-temporal change queries represents an object changes continuously with easy, change detection is done by comparing two versions of data. Keyword: spatio-temporal change query, spatio-temporal change pattern.
Keyword: