Judul: Potensi Kebakaran Hutan di KPH Bogor Perum Perhutani Unit III Jawa Barat dan Banten
Abstrak: The potential of forest fire can be studied based on forest fire controlling and source of forest fire that is human activity also rainfall. The objectives of this research are to analyze the level of vulnerability forest fire based on rainfall rate from 5 years recently, to study the source of forest fire and analyze the efforts of forest fire controlling in KPH Bogor. The result showed that the average of yearly rainfall rate on recent 5 years is 2 545 mm. It can be categorized into not prone toward forest fire. The potential of forest fire that caused by land clearing was low because it was controlled burning applied by the society. The potential of forest fire that caused by social conflict was quite high due to lack of good relations between KPH Bogor and the society. Less on information about socialization program and less on attention toward the existence of warning board is a ineffective forest fire controlling.
Keyword: rainfall, potential forest fire, KPH Bogor, human activity, forest fire controlling

Judul: Hubungan Faktor Iklim dengan Kejadian Kebakaran Hutan di KPH Bogor, Perum Perhutani Unit III Jawa Barat dan Banten
Abstrak: Forest fire is one of the factors affecting environmental-damage that have been occuring frequently in Indonesia for the last two decades. It is a serious problem that, until today, it cannot be controlled optimally. Climate condition highly affects forest fire occurence, in term of the frequency, magnitude, season, and the effects. Climate factors including temperature, humidity, precipitation, wind, and air stability directly affect the potential of forest fire occurence through fuel availability and fire spread. This research was done to analyze the correlation between climate factors and forest fire occurence in Bogor. The result shows that the correlation between climatic factors and forest fire could be modelled through regression analysis. Based on Pearson‟s Correlation, climate factors that has the strongest correlation with forest fire is monthly rainfall.
Keyword: weather factors, Pearson‟s correlation, forest fire occurence

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.
Keyword: