Judul: Analisis Daerah Rawan Kebakaran Hutan dan Lahan dalam Penataan Ruang (Studi Kasus: Kota Palangka Raya, Provinsi Kalimantan Tengah)
Abstrak: In the city of Palangka Raya, land and forest fires are occurred almost every year during the dry season. These conditions resulted in damage and loss in terms of economic, social and environment that will inhibit the rate of development in Palangka Raya city so that necessary control measures against land and forest fires. This study has four main objectives that include the following: (1) to identify the characteristics of land and forest fires; (2) to identify factors influencing land and forest fires; (3) to identify land and forest fires hazard zone; (4) to formulate the direction of land and forest fire prevention. The Characteristics location of land and forest fires, factors influencing land and forest fires and land and forest fires hazard zone processed and analyzes using remote sensing technology approaches and statistical method and integrating Geographical Information System (GIS) with Composite Mapping Analysis (CMA). Human activites influencing land and forest fires obtained from interviews based questionnaire and analyzed using pairwise comparison. Based on logistic regression analysis of the 8 variables encompass human activities and supporting conditions, consisting of distance to roads, distance to rivers, distance ti settlements, land cover, population density, rainfall, soil type and slope. Human activites are the main factor influencing the land and forest fires. In terms of spatial consist of distance to roads, land cover and population density. Based on the results of interviews were analyzed using the method of pairwise comparison, the tendency of burning land is land acquisition without adequate financial ability The results of the analysis of land and forest fire hazard zone using CMA with three parameter influencing land and forest fires produce model accuracy by 80,00 % with low hazard area covering 103.347 ha (39 %), moderate hazard area covering 130.681 ha (49 %) and high hazard area covering 33.824 ha. Based on land and forest fires hazard zone with high hazard, there are 11 referrals location of land and forest fires prevention spread over 5 districts. The characteristics location of land and forest fire hazard zone with high hazard located at region of production forest, region of production development, region of settlement, and using other, distance to roads < 1 km, population density 11 – 100 jiwa/km2, swamp – shrubs and histosol that has degraded (overdrain) with slope < 2%. The prevention policy of land and forest fires in administration area of Palangka Raya City is prohibition of burning land and forest. The policy of controlled burning is applied to agriculture activities undertaken by indigenous or traditional people. According to land and forest fire hazard zone, land and forest fires prevention strategies that can be done is the development of information media, preparation of water sources, canal blocking, education, community empowernment and law enforcement.
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Judul: Analisis Pola Sebaran Titik Panas dan Pemodelan Spasial Kerentanan Kebakaran Hutan dan Lahan di Kabupaten Kapuas, Kalimantan Tengah
Abstrak: Land and forest fires in Indonesia become a serious problem since 1982/1983. Kapuas District is one of districts in Central Kalimantan which often experiences land and forest fire. Aim of this research is to analyze the distribution of hotspot in Kapuas District, to identify the driver factors which cause land and forest fire, to build spatial modeling and to map land and forest fire vulnerability index in that area. A Composite Mapping Analysis (CMA) method was used to build spatial modeling. The maximum distribution of hotspot during 2005 to 2012 occured in 2006 and 2009, and it was estimated due to the influence of El-Nino, so the intensity of the land and forest fire increased. Dominant driving factors of land and forest fire vulnerability from the highest to the lowest are depth of peat, distance to central village, land use/cover, road distance, and river distance. Depth of peat is a factor that has a higher influence than others factors. The best spatial modeling for vulnerability of land and forest fire is a model with 5 factors, those are depth of peat, distance to central village, land use/cover, road distance, and river distance. The result of land and forest fire vulnerability mapping showed that high to the very high vulnerability index of the Mantangai sub-district in very large region.
Keyword: land and forest fires vulnerability index, land use/cover, CMA, land and forest fires, hotspot

Judul: Optimization of Alginate-Chitosan Microcapsules Formation for Leydig Cells Encapsulation
Abstrak: Hypogonadism is a clinical condition characterized by low concentrations of testosterone. It is caused by malfunction of Leydig cells in producing testosterone. Encapsulation method will protect the transplanted cells from the immune system rejection. The aims of this study was to optimize the formation of microcapsules for Leydig cells encapsulation. The microcapsules were made of alginate and chitosan as the first and the second coating agents, respectively. The result showed that the minimum concentration of alginate was 1.5% (w/v) with a viscosity of 33.8 cPs, resulted spherical microcapsules with diameters of 230-270 µm. The optimum concentration of chitosan as the second coating agent was 0.5% (w/v), resulted spherical microcapsule with mechanical stability in 4 hours. Leydig cells can be trapped inside the capsule with a density that proportional with concentration of cells used in the encapsulation.
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