Judul: Manajemen Penangkaran dan Aktivitas Harian Kalong kapauk (Pteropus vampyrus Linnaeus 1758) di Taman Margasatwa Ragunan
Abstrak: Utilization of large flaying fox from nature and the damage of natural habitats of large flaying fox makes population diminish. Therefore large flaying fox need to be captivein order to keep large flaying fox populations in natural habitats remain sustainable. The purpose of this research is to study the technical aspects of captive management and identified daily activity of large flaying fox in the enclosure. The method used for captive management is field observation, interviews, and literature, while for daily activities using scan animal sampling method against two groups of large flaying fox by sex (male and female). There are 13large flaying fox in TMR (7 males and 6 females). Bat enclosures have a size of 12 m x 4 m x 4 m. Large flaying foxin TMR are given feed papaya, banana, and guava. Results of the implementation of animal welfare outcomes calculation of 2.51 and included in good categories. Daily activity of large flaying fox were identified are, grooming itself, perch, resting/sleeping, eating, communicate, and moving. Based on the results of chi-squared test, daily activities of large flaying fox male and female are generally the same.
Keyword: 

Judul: Daily Activities and Welfare Rate Agile Gibbon (Hylobates agilis) at Schmutzer Primates Center, Ragunan Zoo
Abstrak: Keberadaan ungko sebagai salah satu jenis satwa yang dilindungi semakin menurun populasinya akibat perburuan dan hilangnya habitat. Salah satu upaya konservasi ungko dilakukan secara ex-situ di kebun binatang. Penelitian ini bertujuan untuk mengidentifikasi aktivitas harian, mengidentifikasi manajemen pemeliharaan dan mengukur tingkat kesejahteraan ungko. Metode yang digunakan meliputi observasi langsung dan wawancara kepada pengelola serta studi literatur. Hasil penelitian menunjukkan aktivitas yang paling banyak dilakukan oleh ungko jantan yaitu istirahat sebesar 29,33%, bergerak 25,33%, menelisik 20%, makan 14% dan main 11,33%. Sedangkan ungko betina lebih banyak melakukan aktivitas istirahat dengan persentase sebesar 31,69% yang diikuti dengan aktivitas menelisik 29,23%, bergerak 21,31%, makan 11,20% dan bermain 6,56%. Ukuran kandang ungko yang ada di PPS telah memenuhi standar NSW Agriculture sehingga ungko dapat bebas bergerak. Pakan yang diberikan telah memenuhi kebutuhan ungko. Pengelolaan kesejahteraan ungko di PPS dilakukan dengan sangat baik. Pencapaian implementasi kesejahteraan ungko di PPS memiliki nilai sebesar 81,50 yang termasuk dalam kategori sangat baik.
Keyword: agile gibbon, daily activities, maintenance management, welfare rate

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
Keyword: