Judul: Studi Tingkat Keberhasilan Pembiakan Komodo (Varanus komodoensis Ouwens, 1912) di Kebun Binatang Surabaya, Jawa Timur
Abstrak: Komodo (Varanus komodoensis) merupakan satwa endemik yang termasuk dalam daftar Appendix I CITES dan dikategorikan rentan oleh IUCN. Penurunan populasi komodo sebesar 14,78% di habitat alami, mendorong pelestarian komodo di ex-situ, seperti di Kebun Binatang Surabaya (KBS). Penelitian ini bertujuan untuk mengkaji manajemen pembiakan, menentukan tingkat keberhasilan pembiakan, dan mengkaji kesejahteraan komodo. Data dikumpulkan menggunakan metode wawancara dan dianalisis dengan menghitung persentase daya tetas, angka kematian, tingkat perkembangbiakan, dan menilai kesejahteraan satwa. Hasil penelitian menunjukkan bahwa manajemen KBS cukup baik dan memperhatikan aspek pakan, kesehatan, kandang, dan pengaturan pembiakan. Tingkat perkembangbiakan komodo dikategorikan tinggi sebesar 93,33%, sedangkan daya tetas dan angka kematian dikategorikan sedang dengan persentase 46,06% dan 34,60%. Penilaian kesejahteraan komodo di KBS dikategorikan cukup, hal ini berarti pengelolaan komodo telah memperhatikan prinsip kesejahteraan satwa yang utama yaitu bebas dari rasa lapar dan haus.
Keyword: pembiakan, komodo, kesejahteraan, Kebun Binatang Surabaya

Judul: Perilaku Komodo (Varanus komodoensis) di Taman Margasatwa Ragunan
Abstrak: The komodo (Varanus komodoensis) is the world's largest lizard that prone to extinction since they only scattered in some small islands in eastern Indonesia. One preservation effort of the dragons is by breeding them in captivity places, such as Jakarta Ragunan Zoo. Eventhought in the captivity, it does not mean there are no problems faced by the komodo. The main problems are because of differences in the weather and environmental conditions. Therefore, the aim of the research is to conduct behavioral assessments of the komodo preserved in the Ragunan Zoo as the first step to resolve the problems. We used observational method called scan sampling. Observations were conducted in two periods of time, i.e. during the daylight (06.00 am-06.00 pm) and evening (6.00 pm-06.00 am). Observations of the behavior of the komodo included walking, stay still, sun bathing, rubbing body, yawn, drinking, eating, climbing, secreting saliva, craning of the tongue, and running. During the daylight, some of the behaviors were more dominant, i.e. walking, stay still, sun bathing, climbing, secreting saliva, and craning of the tongue. While during the night stay still was dominant.
Keyword: Bogor Agricultural University (IPB), Ragunan Zoo, scan sampling, Varanus komodoensis, komodo, behavior

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.
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