Judul: Pendugaan Parameter Demografi Monyet Ekor Panjang (Macaca fascicularis Raffles 1821) di Situ Sangiang Taman Nasional Gunung Ciremai.
Abstrak: Long-tailed macaque (Macaca fascicularis Raffles 1821) have wide use in biomedical research hence being exported to many countries, such as China and U.S.A. Indonesia is one of many countries that export long-tailed macaque. Even so, they often have conflict with humans. Situ Sangiang which is located at Sangiang Resort in Taman Nasional Gunung Ciremai (Mt. Ciremai National Park) is one of many habitats of long-tailed macaque. This research aims to discover demographical parameters of long-tailed macaque at Situ Sangiang, which are population size, birth rate, mortality rate, sex ratio, and age structure. This research was held at 3-12 March 2015 using concentration count method towards three groups of long-tailed macaque. The data collected from the site indicated that population of long-tailed macaque at Situ Sangiang is 76 individuals with an average size of 25.33 ± 8,40 individuals per group. Sex ratio in the groups are 1:1.4 for makam group, 1:1.5 for cideres group, and 1:1.2 for ranca group with progressive population structure that will ensure the prosperity of long tailedmacaque population.
Keyword: demographic parameters, long-tailed macaque, situ sangiang

Judul: Studi Populasi dan Habitat Monyet Ekor Panjang (Macaca fascicularis) di Cagar Alam Pananjung Pangandaran Jawa Barat
Abstrak: Pananjung Pangandaran Nature Reserve is one of natural habitat for long-tailed macaque (Macaca fascicularis). This wildlife was listed as Least Concern status in IUCN (2013) and Appendix II in CITES. The result of the research, which was done in three observation tracks, showed a different density of long-tailed macaque. The greatest population density was found as Karang Pandan (22 ind/ha), while at second track (Tadah Angin) were 4 individuals/ha, and at the third track (Cikamal) there were 19 individuals/ha. The range of population at the first track as many as 22 ± 9 individuals, at the second track as many as 4 ± 2 individuals, and third track as many as 7 ± 4 individuals. The adult long-tailed macaque was found at most in this research. Sex ratio of long-tailed macaque at the first and third track was 1:4, and at the second track was 1:3. There were 48 plant species that were found in the area where the long-tailed macaque carried out their activity, and 22 of the species had potential for long-tailed macaque feed.
Keyword: population, Macaca fascicularis, habitat, density

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: