Judul: Indeks Kerentanan Pantai Pangandaran Akibat Bencana Tsunami.
Abstrak: In year 2006 an earthquake took place in coast of southern West Java, which was followed by a tsunami attacking the coast of Pangandaran. Pangandaran is one of the most probable are which can be attack by huge tsunami wave. The similar phenomenon can happen in the coasts of other southern part of West Java Province include Pangandaran, so it needs the awareness in order to minimize the tsunami risk. The purposes of this research are to discus determine the vulnerability index coast of Pangandaran due to tsunami disaster impact. Boundary location of research in 7,75oS – 7,65oS and 108,55oE– 108,70oE. These research cover identifying characteristics coast of Pangandaran, seismic identification, tsunami modeling, and determination the vulnerability index. Seismic identification is determined by fractal method, tsunami numerical modeling is done through Imamura (1994) by wearing a long wave hydrodynamics mathematical equations, while determining the vulnerability index is determined by the method of Cell Based Modelling (CBM). The Pangandaran coasts have five zone of tsunami vulnerability, i.e. very high includes the coast of Babakan and Pangandaran Village (Pangandaran Subdistrict) then the coast of Cikembulan Village (Sidamulih Subdistrict). The high tsunami vulnerability zone includes the coast of Sukaresik Village (Sidamulih Subdistrict) and the coast of Pananjung Village (Pangandaran Subdistrict). The moderate tsunami vulnerability zone include the coast of Wonoharjo Village (Pangandaran Subdistrict). Zone of low and very low vulnerability are far enough away from the coastline, where its territory not bordering the sea. This zone includes the villages of Sidamulih, Cikalong, Pejanten, Purbahayu, Sidomulyo and Sukahurip. the village of Pangandaran located on the mainland which connects the mainland island of Java with Cape Pangandaran (isthmus) in place as the most dangerous zones. This is because the characteristics of the area provide a great influence to the hazard vulnerability tsunami.
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Judul: Pemetaan Kerawanan Pantai terhadap Tsunami dengan Sistem Informasi Geografis (SIG) di Kabupaten Pangandaran Jawa Barat
Abstrak: Gempa tektonik di laut merupakan salah satu penyebab tsunami. Salah satu daerah di Indonesia yang memiliki aktivitas tektonik tinggi dan berpotensi tsunami berada di Pesisir Selatan Jawa. Analisis kerawanan tsunami dapat dilakukan menggunakan Sistem Informasi Geografis (SIG). Tujuan penelitian ini adalah melakukan pemetaan dan mengidentifikasi kerawanan tsunami menggunakan SIG di Kabupaten Pangandaran. Analisis kerentanan tsunami dilakukan menggunakan metode tumpang susun (overlay) parameter penentu kerawanan tsunami. Parameter yang digunakan adalah jarak dari garis pantai, elevasi daratan, jarak dari sungai, jarak pantai terhadap sumber gempa, keberadaan pulau penghalang, bentuk pantai, dan kelerengan daratan. Analisis tingkat kerawanan tsunami pada penelitian ini dibagi menjadi 5 kelas yaitu sangat rawan, rawan, agak rawan, aman, dan sangat aman. Luasan wilayah Kabupaten Pangandaran yang termasuk ke dalam kelas sangat rawan sebesar 1753.33 ha (1.57%), kelas rawan sebesar 5299.63 ha (4.75%), kelas agak rawan 8455.58 ha (7.58%), kelas aman sebesar 22833.04 ha (20.46%), dan kelas sangat aman sebesar 73279.54 ha (65.65%). Wilayah administrasi yang memiliki tingkat kerawanan sangat rawan berada pada 6 kecamatan yang berbatasan langsung dengan laut yaitu Kecamatan Cijulang, Cimerak, Kalipucang, Pangandaran, Parigi, dan Sidamulih.
Keyword: kerawanan, metode tumpang susun, SIG, tsunami

Judul: Sintesis Flavonol melalui 2’-Hidroksikalkon
Abstrak: Flavonol is a class of flavonoids commonly found in fruits and vegetables. Flavonol is very useful, especially in food sector and health. In this study, flavonol unsubstituted was successfully synthesized from an intermediate material 2’-hydroxychalcone. The 2’-hydroxychalcone was synthesized by Claisen-Schmidt condensation method between o-hydroxyacetophenone and benzaldehyde using 4 different catalysts, namely KOH 60%, solid pellet of KOH-grinding technique, BF3-Et2O, and NaH in DMF. The KOH 60% was the best catalyst, giving the highest yield (57%). Afterward, the flavonol was synthesized in 1-stage oxidation cyclization of o-hydroxyacetophenone using Algar-Flynn-Oyamada (AFO) reaction, giving 76%. The flavonol total yield from 2’-hydroxychalcone was 43%. All synthesized products were characterized by their melting points and their spectra. The success of the synthesis flavonol opens the way to synthesis of useful flavonol derivatives such as quercetin and kaempferol.
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