Judul: Animal Welfare Level and Readiness Status of Javan Gibbon in Rescue and Rehabilitation Center for Released
Abstrak: Owa jawa (Hylobates moloch Audebert 1798) merupakan satwa primata endemik Pulau Jawa. Permasalahan yang dihadapi oleh primata ini adalah penurunan populasi yang disebabkan oleh kerusakan habiat, perburuan liar, dan perdagangan liar. Pendirian Lembaga Konservasi dijadikan sebagai upaya pemulihan populasi owa jawa secara eks-situ. Salah satu Lembaga Konservasi yang bergerak di bidang pelestarian owa jawa adalah Javan Gibbon Center (JGC). Menurut Peraturan Menteri Kehutanan nomor 31 tahun 2012, pengelolaan Lembaga Konservasi dilakukan berdasarkan prinsip etika dan kesejahteraan satwa. Sebagai Pusat Rehabilitasi Satwa, JGC memiliki kewajiban untuk melakukan pelepasliaran sehingga perlu dilakukan penilaian terhadap kesiapan pelepasliaran owa jawa., Javan Gibbon (Hylobates moloch Audebert 1798) is endemic primate from Java Island. The problem faced by this primate is population decline caused by habitat destruction, illegal hunting and illegal trade. Establishment of Conservation Institution serve as javan gibbon population recovery effort in exsitu. One of the Conservation Institution which concern in javan gibbon conservation is Javan Gibbon Center (JGC). According to the Forestry Ministry Regulation number 31 2012, management of Conservation Institution based on principal of ethics and animal welfare. As Animal Rehabilitation Center, JGC has obligation for release therefore, it is necessary to do assessment to readiness of javan gibbon release.
Keyword: Animal welfare, javan gibbon, readiness status

Judul: Assessment of the Readiness on Release of Javan Gibbon (Hylobates moloch) in Javan Gibbon Center, Mount Gede Pangrango National Park
Abstrak: Owa jawa merupakan primata dilindungi yang masih diperdagangkan. Salah satu upaya konservasi owa jawa yaitu rehabilitasi sebelum dikembalikan ke alam liar. Penilaian kesiapan pelepasliaran merupakan salah satu cara untuk memastikan bahwa owa jawa dapat bertahan hidup setelah dilepasliarkan. Penelitian dilaksanakan di Javan Gibbon Center untuk menduga alokasi waktu aktivitas harian owa jawa pada masa rehabilitasi; dan membandingkan pola perilaku dan alokasi waktu aktivitas harian antara owa jawa masa rehabilitasi dengan owa jawa liar. Penelitian dilakukan pada bulan April selama 11 hari dengan mengamati aktivitas dua pasang owa jawa di kandang. Data tersebut kemudian dibandingkan dengan aktivitas owa jawa liar dan dimasukkan ke dalam tabel penilaian kesiapan pelepasliaran individu owa jawa. Tingkat kesamaan aktivitas harian owa jawa rehabilitan dengan owa jawa liar bervariasi, mulai dari 34,16-90,96% dengan tingkat kesamaan tertinggi pada aktivitas bergerak dan terendah pada aktivitas seksual. Pola perilaku bimodal tidak berlaku pada owa jawa di kandang rehabilitasi. Objek penelitian yang diamati masuk ke dalam kategori siap untuk dilepasliarkan., Javan gibbons (Hylobates moloch) are protected primates that are still being traded. One of the conservation efforts of the javan gibbon is rehabilitation before being returned to the wild. Assessment of release readiness is one way to ensure that the javan gibbon can survive after being released into the wild. The study was conducted at the Javan Gibbon Center to estimate the time allocation for the daily activities of the javan gibbons during the rehabilitation period; and comparing behavior patterns and time allocation of daily activities between Javan gibbons during rehabilitation and wild javan gibbons. The study was conducted in April for 11 days by observing the activity of two pairs of javan gibbons in a cage. These data were then compared with the activity of wild javan gibbons and entered into a table for assessing individual release readiness of javan gibbons. The level of similarity in the daily activities of the rehabilitated Javanese gibbon with the liar Javan gibbon varied, ranging from 34.16-90.96% with the highest level of similarity in moving activities and the lowest in sexual activity. Bimodal behavior patterns did not apply to Javan gibbons in rehabilitation cages. The observed object of research is categorized as ready to be released into the wild.
Keyword: daily activity, javan gibbon, Javan Gibbon Center, rehabilitation

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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