Judul: Pemetaan Tingkat Kerawanan Pencurian Pohon Menggunakan Sistem Informasi Geografis di KPH Balapulang Perhutani Unit I
Abstrak: KPH Balapulang forestry is one of the companies run by Perhutani Unit I Central Java. One forest disruption occurs in KPH Balapulang the tree theft. Theft of trees can also threaten the sustainability of forest management and function. Geographic Information Systems (GIS) can help forest management. With the ability to build GIS spatial model. The purpose of this study itself are: making maps theft of trees, identifying factors that influence the theft of trees, and create a map of their vulnerability to theft trees. Map of tree theft is divided into five classes, namely tree thefts: low, pretty, medium, high, and very high. The factors that affect the distance the tree thefts, residential distance, age classes, and class slopes. Spatial model obtained the degree of vulnerability maps obtained tree theft is divided into five, namely: low-prone, quite vulnerable, being vulnerable, high-prone, and very vulnerable. Test the accuracy of the model produced Kappa values of 78,45% accuracy using the reference year 2008 and amounted to 65,69% using the reference year 2011
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Judul: Pemetaan tingkat kerawanan pencurian kayu dengan menggunakan sistem informasi geografis (SIG) : Studi kasus di KPH Saradan Perum Perhutani Unit II jawa Timur
Abstrak: Pada saat ini semakin meningkat permasalahan dan gangguan hutan yaitu pencurian kayu, dari taraf jumlah batangan sampai jumlah dalam ukuran bertruk-truk. Sebagaimana tersirat dalam UUD 1945 pasal 33 ayat 3 dan UU Pokok Kehutanan No 5 tahun 1967 pasal 15 mengenai hutan sebagai sumber daya alam dan kekayaan nasional yang perlu dijaga dan dilestarikan, untuk dapat memberikan manfaat secara optimal dan berkelanjutan bagi kesejahteraan masyarakat. Dukungan informasi yang cepat dan akura sangat penting untuk menunjang pengelolaan hutan yang lestari. Informasi ini dapat tercapai apabila didukung ketersediaan data yang lengkap, tepat, dan cepat memperolehnya. Sistem Informasi Geografis (SIG) memiliki fasilitas- fasilitas yang mendukung pengolahan data yang berkaitan pengelolaan hutan. Penelitian ini bertujuan untuk menghasilkan peta sebaran lokasi rawan pencurian kayu di KPH Saradan, melihat perubahan lokasi tingkat kerawanan pencurian kayu untuk berbagai BKPH, dan sebagai bahan masukan dan per- timbangan lebih lanjut dalam perencanaan aspek keamanan hutan.
Keyword: pencurian kayu

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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