Judul: Agroforestri ilengi: suatu kajian pelestarian dan pemanfaatan jenis pohon (Studi Kasus di Desa Dulamayo Selatan, Kecamatan Telaga, Kabupaten Gorontalo, Provinsi Gorontalo)
Abstrak: In the villages of Dulamayo Selatan, traditional agroforestry systems are callled llengi. The structure of these forests resembles natural forest, and provide numerous products to local people. There are six different kinds of ilengi agroforestry, which are planted with different species according to the products which farmers aim to harvest, including food, medicine and timber. The purpose of this study is to characterise ilengi, identify the diversity and richness of tree species in this forest characteristics identify, farmers' knowledge about the selection of tree species, and their pereferences for various plants and tree species ilengi. The methods included analyzing the diversity index and the density of tree species, tree species richness index, basal area, and the Local User Value Index (LUVI).
Keyword: 

Judul: Kajian pengelolaan agroforestri dan konservasi keanekaragaman hayati
Abstrak: Presence of forest area which setted by government such as IUPHHK and nature reserve area are unable giving welfare to surrounding comunities. Deforestation is occur in that forested area which sooner or later will bringg the forest area to the point where unable to supply the wood demand. Non timber forest product is main product of agroforests in indonesia whereas timber forest product is the secondary product. Even so existence of community-owned agroforest more able giving walfare to the community and agroforest was estimated as an answer where the nature forest unable to supply the wood demand. Purpose of this research is to know the scheme of agroforest management and its benefits for community and biodiversity conservation. Research was held in Gunung Mananggel, Kecamatan Mande, Kabupaten Cianjur, West Java. Start by October 2009 till November 2010. Method that used was interviewing people arround the area and participative observation. the biodiversity research using vegetation analitic and making diagram profil of vegetation. Gunung Mananggel forested area consist of mosaics of few type of agroforest which at least consist of two canopy level. land of this area managed by farmers using agroforestry system. At least three types cyclical agroforest which indistinguishable exactly. that were durian agroforest, rubber plant agroforest and mixed agroforest. The benefit of this area to people especiallu farmers as a main source of livelihood such as source of fuelwood, woods supply, source of vegetables and complementary foods. Gunung Mananggel area has role to nature resource conservation as water catchment area and wildlife area. there are more than 39 species avifauna, two species primate and two another mammals.
Keyword: 

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
Keyword: