Judul: Pemetaan Tingkat Kerentanan Pantai Terhadap Bencana Tsunami di Wilayah Pantai Pangandaran, Jawa Barat
Abstrak: Indonesia are on the path of seismically active region and can cause a tsunami disaster. One of the area inIndonesia that is prone to tsunami disaster is Pangandaran Coast, West Java on southern coast of Java . One of the prime action in the tsunami disaster mitigation is to create a map of coastal vulnerability to the tsunami disaster. The research was conducted from April to December 2013 including three districts in Pangandaran. Analysis of tsunami vulnerability assessment was performed by using merger or overlay method with Geographic Information Systems (GIS). The parameters that used to analyze the vulnerability of tsunami is elevation, topography, landuse, coastal border, and the river banks. The vulnerability level is divided into five classes, that is very high, high, medium, low , and very low . From the entire area of research, Pananjung village, Babakan, Pangandaran (Pangandaran sub-district) and village Sukaresik and Cikembulan (Subdistrict Sidamulih) are the areas that have very high levels of tsunami vulnerability amounting to 737.703 ha. While the areas that have low vulnerability are Pagergunung Village, Putrapinggan, Kersaratu region with an area of 4816.204 hectare
Keyword: vulnerability, tsunami, GIS

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.
Keyword: