Judul: Dinamika Pengelolaan Terumbu Karang Di Pulau Kabalutan, Kabupaten Tojo Una-Una, Propinsi Sulawesi Tengah
Abstrak: Coral reef degradation that driven by various factors, e.g.: natural disaster, pollution, mining, sedimentation, tourism and fishing activities have been continuously taking place in Indonesia in the last decade. Kabalutan Island is an area which coral reef degradation driven by a factor called “commercialization and commodification of fisheries”. However, it can be also indirectly driven by policy overlap in resource management. The aim of this study are; (1) to identify the driving factors on natural resource degradation, and (2) to identify the weak point of a management system that leads to failure by seeing the dynamic of natural resource management comprehensively. The research was conducted by doing analysis on coral reef condition, policy and management. Result of the research shows that there is a dualism in natural resource management at Togean Islands; while in micro level, at Kabalutan Island, the absence of authority, right, regulation, and monitoring has been the main driver of coral reef degradation.
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Judul: Pengelolaan Ekosistem Terumbu Karang di Daerah Perlindungan Laut di Pulau Kaledupa Kabupaten Wakatobi
Abstrak: The study concerned to analyze the management of coral reef ecosystems in Marine Protected Areas (MPAs) Kaledupa Wakatobi. The used analytical frame work of Institutional Analysis and Development (IAD), development institutional concerd IAD is used to analyze the performance and structure of the management institutional MPAs. This will be evaluated by ecological, social, and institutional (rules used). Ecological aspects represented by changes in life of coral cover on the date of and after the MPAs formed, the social aspect is represented by the condition of society and people's perceptions, institutional aspect will focus on rules that used in the institutional structure and performance. The results showed that the location of the general conditions study and life of coral cover have decreased in the early establishment by 35.5% -51.3% (medium-well) to 17.2% -39.9% (broken-being) after MPAs runs. The decline was caused by the activities of overfishing and the use of fishing tools that are not environmentally friendly. From the institutional aspect, still can’t protect the resources. This can be seen from the surveillance sistem which is weak, the punishment didn’t work properly, and so the rules haven’t fully accepted by society.
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Judul: Sintesis α-Fe2O3 menggunakan metode sol gel
Abstrak: In this reseach was succeeded make powder α-Fe2O3 with particle size 202.64 nm. Synthesis using Sol-Gel method with SiO2 coating derived from Si(OC2H5)4 at temperature of 750 oC for 5 hours. Characterization XRD prove that sample form is α-Fe2O3 (11 peaks) and β-Fe2O3 (2 peaks) with crystal size 20.69125 nm and crystallization 44 %. The cystal structure of α-Fe2O3 is rhombohedral and β-Fe2O3 is hexsagonal. Optic characterization show that the sample absorbing light at wavelength less than 480 nm. Bandgap energy of the optical characterization measurments is 2.74 eV.
Keyword: α-Fe2O3, annealing, bandgap energy, sol-gel, crystal structure.