Judul: Aktivitas Harian Dan Wilayah Jelajah Kukang Jawa (Nycticebus Javanicus Geoffroy 1812) Di Taman Nasional Gunung Halimun Salak
Abstrak: Kukang jawa (Nycticebus javanicus) merupakan primata endemik Jawa Barat yang termasuk ke dalam kategori Critically Endangered dalam IUCN. Penelitian bertujuan untuk mengidentifikasi aktivitas harian, wilayah jelajah, kondisi habitat dari pemilihan lokasi tidur, dan komposisi vegetasi kukang jawa. Penelitian dilakukan pada bulan Juli sampai September 2014 dengan menggunakan satu individu kukang jawa liar yang telah dipasang radio collar. Aktivitas makan merupakan aktivitas harian dominan pada kukang jawa dengan presentase sebesar 33.23%. Berdasarkan hasil perhitungan menggunakan metode Minimum Convex Polygon (MCP) diperoleh rata-rata luas wilayah jelajah kukang jawa 8.16 ha, sedangkan dengan menggunakan Fixed Kernel (FK) 95% diperoleh rata-rata luas wilayah jelajah kukang jawa 4.13 ha dan dua daerah inti dengan luas 0.5 ha. Jenis tumbuhan yang ditemukan pada analisis vegetasi sebanyak 22 jenis tumbuhan. Kukang jawa menggunakan liana cangkore pada pohon reungas dan pohon kokosan monyet.
Keyword: aktivitas harian, kukang jawa, wilayah jelajah

Judul: Studi Lokomotor dan Postur Per Aktivitas Owa Jawa (Hylobates moloch Audebert, 1798) di Taman Nasional Gunung Halimun Salak.
Abstrak: Gunung Halimun Salak National Park is the largest mountainous tropical rainforest remaining in Java island and it is an important habitat for the preservation of javan gibbon (Hylobates moloch Audebert 1798), an endemic primate in Java island. A study of posture and locomotion of javan gibbon is needed considering within their daily activities, javan gibbon using different spatial habitat structure and therefor the information is important as reference to make a better decision in conserving habitat and population of javan gibbon based on aspect of behavioral and ecology. This study was conducted in an area of Cikaniki – Citalahab, Gunung Botol resort for one month (June – July 2012). Equipments used in the study were range finder, binoculars, phi bands, compass, camera, stationery and stopwatch as a tools. Data were collected from two groups of well-habituated javan gibbon, named group A and B, by using scan and focal animal sampling in order to get collected behavioral data. Profile diagram of the habitat was also developed. To determine home range, convex polygon and fixed kernel 95% were applied. The mean active period of javan gibbon was 9 hours at 07.35 am – 4.50 pm and dominated by resting activity for 48.18%. The dominant locomotor type during their active period was brachiation with frequency and duration of 46,07 – 79,33% and 11,52 – 15,26 hours. Meanwhile the percentage of sitting posture type with frequency and duration was 72,78% - 84,12% and 11,12 – 19,04 hours. There was 24 species of trees used as locomotion mediums and 16 trees for postures. The most dominant species was puspa (Schima wallichii) with most dominant family was from family Fagaceae. The percentage of crown covers for the two groups was 62.2%. Alleged average daily range during the observation time of 641.96 m group A while group B of 1278.18 m. Calculations with FK 95% giving an average cruising area of 50.27 ha, while the 100% MCP method gives an average cruising area of 24.38 ha. Analysis of the Digital Elevation Model (DEM), wide ranges of the study group had a mean - average of 25.65 ha for the analysis of the MCP and 53.25 ha for FK analysis results with 95%. Result of posture and locomotor study could be used as consideration to design of ex situ conservation area of javan gibbon beyond, that includes also habitat enrichment. Map of the daily movements and home ranges of Javan gibbon can be used as supporting data for the object ecotourism attractions of special interest, education and research. Also, it can be a reference park managers in monitoring the presence of a controlling Javan gibbon habitat
Keyword: 

Judul: Penyelesaian Masalah Rotasi Aliran Fluida Kental Von Karman Menggunakan Metode Homotopi
Abstrak: Von Karman equation is an equation that describes fluid viscous flow induced by infinite disk rotation. By assuming steady flow and laminar, viscous incompressible fluid flow is represented in Von Karman equation by an angular velocity and the vertical direction velocity as the independent variables. Von Karman equation is a nonlinear problem that is solved using the homotopy method. The use of homotopy method is done by defining an homotopy function that requires auxiliary parameters to control the convergent region of the solution. The solution is a recursive formula with given initial conditions. Using software based-functional shows that velocity components converge to a value.
Keyword: