Judul: Pengaruh Kawasan Pariwisata Terhadap Kesehatan Karang di Pulau Pari, Kepulauan Seribu
Abstrak: Traveling is become a world-wide trend which has been done by many nature lovers. Indonesia, which has many islands, becomes a magnet for tourists to see its underwater beauty. One of these islands is Kepulauan Seribu. Tourism activity causes several damages to coral reef ecosystems. One of them is coral disease, which resulted in the degradation of coral reef ecosystems in the world. This study aims to measure the coral reefs' health rate based on the observation of the abundance and prevalence of coral disease, and analyze the impact of tourism activity on coral reefs' health. This study was conducted from 24 to 25 November 2013 in Pari Island, Kepulauan Seribu, with 4 scattered stations. The method used was the Belt Transect method in the area of 2 x 100 meters, and Line Intercept Transect ( LIT ) in 30 meters long with three replications. Based on the result of the research, coral bleaching phenomenon was found in tourism and non-tourism area. Meanwhile, the most common diseases and health problems in this area are ulcerative white spots (UWS) and sediment damage (SD).
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Judul: Kesehatan Karang Fungiidae di Pulau Pari, Kepulauan Seribu
Abstrak: Coral disease is one of the main causes of the decline of coral reef ecosystems. Fungiidae had been chosen because if compared to other corals, Fungiidae had an advantage in the ecological quantitative survey. The study aims to measure the level of coral health based on abundance and prevalence of coral health category. The study was conducted on 24 to 25 November 2013 in Pari Island, Thousand Islands on 4 stations spread. The method used in this study is Belt Transect method with 2 x 100 meters and Line Intercept Transect ( LIT ) along 30 meters with three replications. Based on the research conducted, 5 Fungiidae was found with Fungia genus dominated. The health condition of corals Fungiidae in Pari Island is divided into fourcategories that are 35% healty and 65% sick consisting of tissue discoloration-white (coral bleaching), tissue discoloration-non white (yellow band disease), and compromised health (sedimentation damage).
Keyword: coral disease., coral bleaching, coral health, Fungiidae

Judul: Membran Komposit Kitosan-Zeolit untuk Aplikasi Direct Methanol Fuel Cell
Abstrak: Direct methanol fuel cell (DMFC) is a fuel cell that utilize methanol as the fuel source. The electrolyte membrane used in the DMFC system in this research was chitosan-zeolite composite membrane. The composite membrane was synthesized with chitosan-zeolite composition variation of 1:1, 1:2, 1:3, and 2:1. The membranes were analyzed by Fourier transform infrared spectrophotometer (FTIR) and scanning electron microscope, and for the specific gravity. Membrane performances were tested with methanol uptake, methanol permeability, conductivity, and potential difference in the DMFC system. The FTIR spectrum showed no formation of new functional groups inducating that the composite membrane was a result of physical mixing. Morphological analysis showed that the membrane was nonporous. Chitosan-zeolite 1:3 composite membrane had the highest specific gravity and methanol uptake, 1.4226 g/mL and 41.44%, respectively. The highest proton conductivity was showed by the 1:2 chitosanzeolite composite membrane, namely 7.2946× 10-7 S/cm. Based on this research results, chitosan-zeolite composite membrane can be applied in DMFC system.
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