Judul: Sebaran Spasial Jejak Aktivitas Babi Hutan (Sus scrofa Linnaeus 1758) di Taman Nasional Gunung Ciremai.
Abstrak: Wild Boar (Sus scrofa) is one of group of mammals which become pests in gardens around the area of Mount Ciremai National Park. The spatial distribution of wild boar activity was determined to find out its distribution and movement in several types of vegetation cover are natural forest, plantation forest, and gardens at Resort Argalingga, SPTN region II Majalengka, Mount Ciremai National Park. The data spatial distribution is retrieved using the technique of indirect observation (Traces), vegetation analyze, and interview. Indirect distribution using strip tansect method. Based on the observations have been found 16 traces in the garden, 98 traces in plantation forest, and 33 traces in natural forest. Hypothesis test results showed that the spatial distribution traces of wild boar activity is influenced by the type of vegetation cover. Wild boar committing several activities are walk, eat, wallowing, sharpening fangs or swipe the body, cover, and dispose of feces. In addition, wild boar proven spread to the gardens for foraging.
Keyword: Mount Ciremai national park, pest, spatial distribution, trace, vegetation cover, wild boar

Judul: Spatial Distribution of Traces  Activity and Utilization of Great Wild Boar (Sus scrofa Linnaeus, 1758) by The  Suku Anak Dalam Tribe in Bukit Duabelas National Park
Abstrak: Babi hutan (Sus scrofa) merupakan satwa buruan yang dimanfaatkan masyarakat Suku Anak Dalam di Taman Nasional Bukit Duabelas. Namun data terkait sebaran spasial jejak aktivitas, peburuan serta pemanfaatan babi hutan masih terbatas. Oleh karena itu, penelitian ini bertujuan untuk mengetahui bentuk sebaran spasial jejak aktivitas babi hutan serta mengidentifikasi bentuk hubungan antara perburuan dan pemanfaatan babi hutan oleh SAD dengan karakteristik responden. Metode yang dilakukan pada penelitian ini adalah pengamatan langsung, analisis vegetasi, dan wawancara mendalam terhadap 40 responden. Hasil penelitian menunjukkan bahwa jenis jejak aktivitas babi hutan yang teramati di TNBD yaitu bekas pakan, gesekan tubuh, asahan taring, jejak tapak kaki, kubangan, dan sarang. Jenis jejak aktivitas yang paling sering ditemukan adalah jejak tapak kaki sebanyak 25 jejak (65,8%). Sebaran spasial jejak aktivitas babi hutan di TNBD memiliki bentuk mengelompok (Ip>0). Perburuan babi hutan oleh SAD dominan dilakukan pada siang hari (45%) menggunakan teknik modern dan tradisional. Bagian yang dimanfaatkan yaitu semua bagian sebesar 77%, hasil buruan babi hutan dominan dimanfaatkan SAD dalam bentuk konsumsi dan dagang., Wild boar (Sus scrofa) is a game animal utilized by the SAD community in Bukit Duabelas National Park. However, data related to the spatial distribution of activity traces, harvesting and utilization of wild boar are still limited. Therefore, this study needs to be conducted to determine the spatial distribution of wild boar activity traces and identify the relationship between the harvesting and utilization of wild boar by Suku Anak Dalam (SAD) with respondents characteristics. The methods used in this study were direct observation, vegetation analysis, and in depth interviews with 40 respondents. The results showed that the types of wild boar activity traces observed in TNBD were feeding marks, body friction, fang marks, footprints, puddles and nests. The most common type of activity trace to be found is footprints with a total of 25 footprints. The spatial distribution of wild boar activity trace in TNBD is clustered (Ip>0). Wild boar harvesting by SAD is predominantly done during the day (45%) using modern and traditional techniques. Parts of wild boar that are being utilized is a total of 77%, and wild boar products were predominantly used by SAD in the form of consumption and trade.
Keyword: Suku Anak Dalam, Babi hutan, Taman Nasional Bukit Duabelas, Sebaran Spasial, Buspatial distribution, wild boar

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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