Judul: Pengembangan Modul Update Data pada Sistem Spatial Data Warehouse Hotspot
Abstrak: The spatial on-line analytical processing (SOLAP) was developed to support hotspots monitoring. The system is able to perform SOLAP analysis and provide the visualization of hotspot distribution. However, this system has not been able to update the hotspots data into a data warehouse. This research aimed to develop a data updating module. This system was built in Java programming language and has a graphical user interface (GUI). The data source used by this system was the result of satellite imagery in the form of a text file, which contains information of hotspots owned by Directorate of Forest Fire Control. Extraction was done to retrieve hotspots information in the text file and make the schematic adjustments in order to be stored in the data warehouse. Refers to the concept of extraction, transformation, and loading (ETL), the system is able to map the data from the data source into the data warehouse, and can process multiple text files.
Keyword: spatial, SOLAP, hotspot, forest fires, ETL, data warehouse

Judul: Peningkatan Kinerja Sistem Spatial Online Analytical Processing (SOLAP) Titik Panas Kebakaran Hutan
Abstrak: NOAA-AVHRR satellite is used for monitoring forest fire hotspots. There are a large historical hotspot data which provided by this satellite. The data can be stored in a spatial data warehouse and it can be managed using a spatial online analytical processing (SOLAP) system. The previous research has succesfully improved the performance of SOLAP for hotspot data so that the number of hotspot which can be displayed was increased to 1500 points. This research intends to enhance the performance of SOLAP system for hotspots data that has been built in the previous work. Performance improvement involves configuration which is focused on software specification including Java runtime environment (JRE), Apache Tomcat server, and simplify some processes of Javascript object notation (JSON). The new configuration was performed using hardware including RAM and processor with the same spesification as those in the previous research. It was found that the number of hotspots as the results of queries in the new configuration of SOLAP increase to 5344 hotspots.
Keyword: spatial OLAP, spatial data warehouse, hotspot, forest fire

Judul: Insecticidal Activity of Essential Oils Leaves of Cinnamomum spp. (Lauraceae) against Crocidolomia pavonana and Their Phytotoxicity on Broccoli Seedlings
Abstrak: Essential oils from leaves of 13 species of Cinnamomum were tested for their insecticidal activity on the cabbage head caterpillar Crocidolomia pavonana with leaf immerse method. The results showed that the treatment with 1% (w/v) essential oils leaves of C. celebicum, C. multiflorum, C. sintoc, and C. verum caused 21.45, 93.65, 60.30, and 76.10% mortality, respectively. Based on the results of phytotoxicity and insecticidal activity tests, C. multiflorum oil was further tested at 6 concentration levels. In all treatments, larval mortality has occurred at 24 hours after treatment (HAT) and increased at 48 HAT. LC50 of C. multiflorum oil at 24 and 48 HAT was 0.504 and 0.396%, respectively. The treatment with C. multiflorum oil at ≤0.31% did not inhibit the development of C. pavonana larvae. Determination of the chemical constituents of Cinnamomum oils were carried out by gas chromatography-mass spectrometry (GCMS). Totally, 345 compounds were identified. Methyleugenol constituted the main component (49.4%) of leaf essential oil of C. multiflorum and was assumed to be responsible for the insecticidal activity of the oil against C. pavonana larvae. LC50 of pure methyleugenol obtained at 0.365% (48 HAT) and 0.363% (72 HAT). The results showed that C. multiflorum was more effective with LC50 value equivalent to methyleugenol content of 0.32% (24 HAT) and 0.24% (48 HAT).
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