Judul: Habitat, populasi, dan sebaran kukang jawa (Nycticebus javanicus geoffroy 1812) di Talun Tasikmalaya dan Ciamis, Jawa Barat
Abstrak: Javan slow loris is an endangered primate that naturely inhabits in some agroforestry garden namely talun in West Java. This study aimed to determine habitat preferences and to estimate population number. Data collection was conducted during April-December 2008 in four villages in Tasikmalaya District and one village in Ciamis District. The methods used to collect vegetation data were belt transect and nested plot, and method to collect javan slow loris densities was line transects. In total ten observed-belt transects showed that habitat preferences of javan slow loris was talun at two main phases: II (talun kebun or more opened vegetation) and III (talun sempurna or closely secondary forest structure). Dominant vegetation in talun habitat indicated by Important Value Index (IVI) proofed to played role as javan slow loris's food source, sleeping site, and habitat of prey and gave benefits the owner of talun for their financial investment. The greatest IVI of vegetation in the sites are Gigantochloa sp., Paraserianthes falcataria (L) I. C. Nielsen, and Arenga pinnata Merr. Ten line transects were used during day and night, therefore the population estimate in each village was 93.67 individuals at Sukamaju which has 4.43 km2 of habitat representative area, 173.79 individuals at Raksajaya (3.23 km2), 119.78 individuals at Kawungsari (6.96 km2), 58.83 individuals at Sarimanggu (3.48 km2), and 20.45 individuals at Sukakerta (1.39 km2). Javan slow loris tends to adapt to the condition of talun habitat, as a result their distributions abundance in range between 220-985 m height above sea level.
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Judul: Perilaku Harian Kukang Jawa (Nycticebus javanicus Geoffroy 1812) di Taman Nasional Gunung Halimun Salak (TNGHS) Jawa Barat
Abstrak: Javan slow loris (N. javanicus) is an endangered species however ecological data and information about its life in nature is limited. According to the IUCN, javan slow loris is one of the critical wildlife status (critically endangered) and listed on Appendix I of CITES since 2007. This study aimed to investigate daily activities of N. javanicus and to assess correlation between climate, moon phase and daily activities of javan slow loris in the Mount Halimun Salak National Park (MHSNP) West Java. Behavioral observations was carried out using a modified method of focal time sampling. Principal Component Analysis (PCA) was used to determine the correlation between the climatic aspects and daily activities. Behavioral observations was conducted on two wild adult females. The most dominant of daily activities N. javanicus were travelling (37.9%), feeding (21.8%), active (12.5%) and foraging (12.3%). N. javanicus preferred natural food items such as nectar (79.9%), sap (16.6%), insects (3.0%) and fruits (0.5%). Correlation climate aspect and moon phase of the daily activities N. javanicus was 59.3%. Phases of the moon gave impact mostly on the daily activities. Nycticebus javanicus is a primate lunar phobia or likely to be active in slightly or no light conditions (dark).
Keyword: Bogor Agricultural University (IPB), javan slow loris, Nycticebus javanicus, daily activities, TNGHS

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.
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