Judul: Lizard (Mabuya multifasciata) Behavior in Captivity
Abstrak: The Mabuya multifasciata lizard are known as common lizard and spread out widely in Indonesian archipelago. Traditionally, this lizard is used as skin medicine for human, protein source, raw material for leather industry and reared as a pet. To increase lizard population and to prevent lizard from extinction, it is important to breed the lizard in captivity. Therefore, their behavior in captivity was conducted.
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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: Metode cepat untuk kuantifikasi teoflin dalam sediaan farmasi secara spektrofotometri derivatif ultraviolet
Abstrak: Teofilin merupakan senyawa alkaloid yang telah lama digunakan untuk mengobati penyakit asma. Metode cepat dan dapat dipercaya untuk penentuan teofilin diperlukan untuk mendukung kontrol kualitas obat. Metode spektrofotometri derivatif ultraviolet (SDUV) tanpa teknik pemisahan telah dikembangkan untuk penentuan teofilin di dalam sediaan farmasi. Metode SDUV ditentukan berdasarkan pengukuran jarak puncak ke puncak pada spektrum turunan orde pertama. Kurva kalibrasi yang dibuat pada selang konsentrasi 5.0-30.0 ppm menghasilkan koefisien korelasi yang tinggi sebesar 0.9994 berdasarkan metode kuadrat terkecil. Ketelitian metode SDUV yang dianalisis pada hari yang sama sangat memuaskan dengan nilai persen simpangan baku relatif untuk contoh A dan B secara berturut-turut sebesar 1.89% dan 1.15%. Nilai perolehan kembali berdasarkan metode penambahan standar sebesar 69.23-86.47%. Limit deteksi dan limit kuantisasi secara berturut-turut sebesar 1.08 μg/mL dan 3.63 μg/mL. Metode kromatografi kinerja tinggi digunakan sebagai metode terstandar untuk penentuan teofilin. Hasil analisis kedua metode dibandingkan secara statistika menggunakan uji F dan uji t. Analisis secara statistika menunjukkan bahwa nilai ragam dan rataan kedua metode berbeda nyata untuk contoh A dan tidak berbeda nyata untuk contoh B pada selang kepercayaan 95%.
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