Judul: Dampak Perubahan Iklim terhadap Potensi Kebakaran Hutan dan Lahan di Kabupaten Kapuas berdasarkan Proyeksi Model Iklim Regional
Abstrak: Indonesia's forests located in Kalimantan are often burned due to high fire potential. Therefore, Indonesia often suffered from loss of biodiversity, financial, health, and production of oxygen. Accumulation of CO2 particles in the atmosphere is continuously increasing, leading to the warming of global and regional temperatures that could impact on the increase of forest and land fire potential. This study found that the meteorological parameter that could increase the probability of forest fires is the maximum air temperature with coefficient determination of 94%. Modeling of climate change scenarios using Regional Climate Model (RegCM) was conducted in this study to project the future change of maximum temperature in Kapuas. Short-term climate projections using RCP4.5 scenario shows the increase in the fluctuation and variability of maximum temperature. The average maximum temperature in 2010–2029 increased from 0.12 to 0.59ᵒC per four years from 2006-2009. This increase led to the increase of forest and land fires potential in the future. The number of active fires in Kapuas are expected to increase in the future from 0.5 to1.5 times of the active fire in 2001-2012 periods.
Keyword: RegCM, RCP4.5, forest and land fire, climate change

Judul: Hubungan antara Titik Panas dengan Perubahan Penutupan/ Penggunaan Lahan (Studi Kasus: Kabupaten Kapuas, Provinsi Kalimantan Tengah)
Abstrak: Land and forest fires in Indonesia have become a serious problem since 1982/1983. Annually the area that was burned widespread, which is caused by the increasing number of forest converted to plantations, agriculture, settlements, and so forth. Indicator commonly used for early detection of forest and land is hotspots, obtained from a meteorology satellite remote sensing. The objectives of this research are to analyze the distribution pattern of hotspots in Kapuas District, analyzed land cover/use change in Kapuas District, analyzed the relationship between hotspots and land cover/use change in Kapuas District, and analyzed the relationship hotspots and rainfall anomaly in Kapuas District. The maximum distribution of hotspots during 2005 to 2011 was indicated in 2006 and 2009; it was expected because of the effect of long term dryness (El-Nino), so the intensity of the fire increased. During 2005 to 2011, many hotspots identified in shrub swamps, shrub, plantations, secondary swamp forest, and secondary upland forest. Hotspots are identified on the site, possibly due to a fire caused by the preparation of agriculture or plantation. It is marked by an increase in land cover change to plantation up to 49.5%, while the secondary swamp forest and secondary upland forest decreased up to 19.2% and 7.83%. The rainfall anomaly is also expected to be able to affect the number of hotspots. When rainfall in the condition of subnormal, then hotspot identified more than when rainfall was above normal.
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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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