Judul: Identifikasi Faktor Penentu Keberhasilan Pelepasliaran Elang Ular Bido (Spilornis cheela Latham, 1790) di Cagar Alam Takokak
Abstrak: Crested serpent eagle is one of raptor species which it existence is threatened by illegal hunting, trading, and habitat degradation. Information about releasing process still categorized as few. This research is conducted at Cikananga Wildlife Center and Takokak Nature Reserve for identifying process and determining factor which decisive for successfull release of crested serpent eagle. Based on this research, crested serpent eagle release phase consist of rehabilitation, transportation, habituation, release, and post release monitoring. Several factors which determine successfull rate of crested serpent eagle release are health aspect, behavior aspect, stress caused by transporting, using of precise release technic, adaptation effort, and survival rate. Crested serpent eagle which released at Takokak nature reserve were able to recognize forest provision, hunt and search for own meal, also avoid human activities.
Keyword: takokak nature reserve, release, crested serpent eagle

Judul: Penggunaan Habitat Koridor Halimun Salak oleh Elang ular bido (Spilornis cheela Latham, 1790) di Taman Nasional Gunung Halimun Salak
Abstrak: Crested serpent eagle is one of the raptor species in Indonesia which has protected by the Indonesian law. The population threatened due to habitat looses caused by forest degradation. The initial step could be done to preserve the species through study of the habitat use based on habitat functions, such as cover and food supply. Beside habitat functions, it was also identified the supporting functions, such as slope, altitude, and distance from source of disturbances in Halimun Salak Corridor, Mount Halimun Salak National Park. The research conducted in April-June 2013 through point count method. Based on field observation, it was identified that habitat function at forest cover can be as resting area and nesting site. The eagle hunted in forest and open area such as horticultural fields, rice fields, and shrubs near the forest. Values of the supporting functions selected by crested serpent eagle was in open area near the forest.
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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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