Judul: Aktivitas Harian dan Pola Perilaku Pasangan Owa Jawa (Hylobates moloch Audebert, 1798) di Javan Gibbon Centre (JGC).
Abstrak: Owa Jawa (Hylobates moloch) sejak tahun 2008 berstatus terancam punah akibat penyempitan habitat. Upaya penyelamatan populasi Owa Jawa terus dilakukan salah satunya penyelamatan populasi Owa Jawa di Javan Gibbon Centre (JGC). Penelitian ini bertujuan mengidentifikasi aktivitas harian dan pola perilaku pasangan Owa Jawa dan menganalisis faktor-faktor abiotik yang mempengaruhinya di Javan Gibbon Centre (JGC) sebagai salah satu aspek kesiapan pelepasan ke alam liar. Penelitian difokuskan pada tiga pasangan Owa Jawa yaitu Boby (♂)-Jolly (♀), Willie (♂)-Sasa (♀) dan Asep (♂)-Dompu (♀). Berdasarkan hasil pengamatan pada ketiga pasangan Owa Jawa, istirahat merupakan aktivitas paling dominan dengan frekuensi 60-80% diikuti aktivitas pergerakan (8-20%), makan (7-13%), sosial (0-4%) dan agresif <1%. Perilaku sosial yang paling sering dilakukan pasangan Owa Jawa yaitu allogrooming, percobaan kopulasi dan vokalisasi. Suhu dan curah hujan merupakan faktor abiotik yang paling mempengaruhi aktivitas dan perilaku pasangan Owa Jawa dalam hal vokalisasi. Berdasarkan data hasil pengamatan, pasangan Willie (♂)-Sasa (♀) dinilai telah memenuhi salah satu aspek penilaian untuk pelepasan ke alam liar.
Keyword: alam liar, brakiasi, dominan, pelepasan, sosial, terancam punah

Judul: Studi Perilaku dan Pakan Owa Jawa (Hylobates moloch) Di Pusat Studi Satwa Primata IPB dan Taman Nasional Gunung Gede Pangrango : Penyiapan Pelepasliaran, Study of Behavior and Feeding of Javan Gibbon in Primate Research Center IPB and Gunung Gede Pangrango National Park : Preparation of Release
Abstrak: Owa Jawa (Hylobates moloch, Audebert 1797) merupakan satu dari lima spesies genus Hylobates yang hidup di Indonesia. Berdasarkan Laporan Conservation Assessment and Management Plan PrimataIndonesia (Supriatna, et.al. 2001), saat ini diperkirakan hanya tersisa antara 400-2.000 individu spesies kera ini di habitat alaminya. Hal ini terjadi karena adanya tekanan atau degradasi habitat Owa Jawa dan perdagangan liar satwa ini sebagai hewan peliharaan (Supriatna 2006). Melalui program pelestarian Owa Jawa secara eksitu diharapkan mampu menunjang konservasi in-situ melalui program pelepasliaran ke habitat alaminya. Studi komparasi antara perilaku di alam (insitu) dan di habitat eksitu merupakan kunci bagi program konservasi spesies dan solusi bagi permasalahan tersebut. Hasil kajian mengenai komparasi dirumuskan sebagai dasar dalam penentuan kebijakan dan arah kegiatan pengelolaan manajeman eksitu di PSSP. Studi ini ditunjukan dalam rangka menyiapkan individu di penangkaran sehingga mampu beraktivitas dan berperilaku serta memanfaatkan pakan sebagai mana ketika berada di alam serta ditunjukan dalam penetapan kriteria kesiapan individu yang akan dilepasliarkan. Data-data yang dikumpulkan meliputi data primer dan sekunder. Pengamatan dilakukan secara langsung dilapangan terhadap aktivitas dan perilaku serta pakan Owa Jawa baik di PSSP maupun di Hutan rasamala (Taman Nasional Gunung Gede Pangrango) serta melalui studi literature yang relevan dengan bidang kajian. Pengumpulan data primer meliputi data kondisi bio-fisik, pengkayaan lingkungan kandang Owa Jawa, aktivitas dan perilaku, serta pakan.
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Judul: Enhancement of photon absorbtion on BaxSr1-xTiO3 thin films semiconductor using photonic crystals.
Abstrak: In this research, has been conducted BaxSr1-xTiO3 (BST) thin films manufacturing for mole fraction x = 0.25, 0.35, 0.45, and 0.55; and concentration of 1 molar using chemical solution depositon (CSD) method. The materials, which are used in this research, are barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%], titanium isopropoxide [Ti(C12O4H28), 97.999%], gallium trioxide [Ga2O3], 2-methoxyethanol [H3COOCH2CH2OH, 99%] and 1 x 1 cm of transparent conductive oxide (TCO) glass as substrate. Two BST thin films are made that for BST thin films which are doped by 10% galium (BGST) as p-type layer and pure BST solution as n-type. BST solution is made by reacting barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%] and titanium isopropoxide [Ti(C12O4H28)] into 2-methoxyethanol solvent [H3COOCH2CH2OH, 99%] in accordance with mass gram for each x value. While, BGST solution is made in the same way as BST solution, plus adding gallium at 10% of the mass of BST. Once all materials are reacted, then vibrated using ultrasonic for 90 minutes, and followed by coating BGST / BST on the TCO substrate. Once the layer is formed, then annealed for 15 hours at temperature of 500 °C with increasing rate of 1.67 oC/minute. Characterizations of BST thin films with or without photonic crystals include the absorbance and transmittance in the visible light spectrum, as well as the electrical photoconductivity characterizations. From BST thin films without photonic crystals indicate that our thin films have light absorption area on almost the entire range of the visible light spectrum even to the infrared range with absorption value over than 67.6%, in addition, it can be seen that the maximum absorbance of BST thin films for all mole fractions lie in blue to green light spectrum region, 457 nm ≤ λ ≤ 570 nm and the minimum in yellow to red light spectrum region, 570 nm ≤ λ ≤ 678 nm. The largest absorbance is found at x = 0.25 with average absorbance value of 92.04% and maximum and minimum absorbance peaks at wavelength of 500.89 and 657.72 nm, respectively. At x = 0.35, average absorbance value decreased to 83.55% with maximum and minimum peaks at 505.73 and 613.68 nm, respectively. Then increased to 91.16% at x = 0.45 with maximum and minimum peaks at 506.04 and 618.56 nm, respectively. At x = 0.55, average absorbance value decreased to 80.12% with maximum and minimum peaks at 507.85 and 608.79 nm, respectively. Moreover, it can be seen that the addition of barium mole fraction leads to wider maximum absorbance or minimum transmittance peaks and narrower minimum absorbance or maximum transmittance peaks in the same range of the green and blue & red light spectrums, respectively. BST thin films with photonic crystals show increasing in absorption for all x values in the range of 3.04 into 13.33%. At x = 0.25, average absorbance percentage increased 3.96% from 92.4 into 95.68%, for x = 0.35 average percentage increased 7.07% into 89.45 from 83.55%. Furthermore, average absorbance of BST thin films at x = 0.45 increased 3.04% from 91.16 into 93.93% and x = 0.55 has
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