Judul: Analisis Kesiapan Pasangan Owa Jawa (Hylobates moloch Audebert, 1798) untuk Pelepasliaran Ditinjau dari Perilaku Kawin di Javan Gibbon Center
Abstrak: Javan gibbon is one of the endemic wildlife in Javan whose endangered. The potency of javan gibbon reproduction whose monogamy is low. One criteria of reintroduction and a release pair of Javan gibbon are succeeding in reproduction. Research is doing in Javan Gibbon Center for 2 pairs of Javan Gibbon, that is Robin-Moni and Asep-Dompu. The aims of this research is to know the suited javan gibbon couple and watch the sign of breeding tendency of javan gibbon. Observe use scan sampling method and record with one-zero sampling for daily activity and ad-libitum method for breeding behavior. The result of this research is indicate that Asep-Dompu has closer than Robin-Moni. It shows from pair association whose doing by Asep-Dompu, like allogrooming, sleep together, and feed sharing. Breeding activity is not observed in this research from 2 pairs of javan gibbon, but the sign whose indicate to occur copulation was detected.
Keyword: 

Judul: Stimulasi Perilaku Kawin Owa Jawa (Hylobates moloch Audebert, 1798) Jantan menggunakan Sanrego (Lunasia amara Blanco).
Abstrak: Upaya konservasi terhadap owa jawa (Hylobates moloch) sangat perlu dilakukan. Salah satu lembaga konservasi di Indonesia yang khusus menangani owa jawa adalah Javan Gibbon Center (JGC). Salah satu tujuan dibentukknya JGC adalah pelepasliaran owa jawa ke alam. Kriteria terpenting dalam pelepasliaran owa jawa adalah owa telah memiliki pasangan yang tetap dan dapat melakukan kopulasi. Penelitian sebelumnya menunjukkan bahwa owa jawa jantan kurang merespon perilaku kawin yang telah ditunjukkan oleh betina. Kondisi tersebut diduga karena kurangnya stimulan atau rangsang. Salah satu usaha yang dapat dicoba untuk meningkatkan rangsang adalah pemberian pakan afrodisiak seperti sanrego (Lunasia amara Blanco). Penelitian bertujuan untuk mengidentifikasi efek pemberian sanrego 300 mg terhadap peningkatan perilaku kawin owa jawa, membandingkan perilaku harian dan perilaku kawin owa jawa jantan saat pemberian dan setelah pemberian sanrego. Penelitian dilakukan di Javan Gibbon Center, Seksi Wilayah Konservasi V Bodogol, Taman Nasional Gunung Gede Pangrango. Waktu penelitian dilakukan pada akhir April hingga Agustus 2014. Pengamatan dilakukan pada 4 kandang pasangan owa jawa di JGC. Dosis yang diberikan pada objek pengamatan adalah 300 mg dalam bentuk serbuk. Pengamatan perilaku dilakukan dengan observasi langsung menggunakan metode focal animal sampling pada pukul 06.30-16.30 WIB. Data yang dikumpulkan dianalisis secara deskriptif dan kuantitatif untuk menjawab tujuan yang ingin dicapai. Berdasarkan hasil pengamatan, persentase aktivitas harian owa jawa pada saat diberikan dan tidak diberikan sanrego mengalami perubahan, namun perubahan yang terjadi belum signifikan. Hal tersebut menunjukkan bahwa sanrego dengan dosis 300 mg masih belum memberikan efek yang signifikan terhadap aktivitas harian owa. Sebelum pemberian sanrego owa jawa tidak melakukan aktivitas kawin/kopulasi (tidak teramati), sedangkan pada saat diberikan sanrego teramati 3 kali aktivitas kopulasi pada owa. Hal tersebut menunjukkan bahwa sanrego yang diberikan telah menstimulasi owa jantan untuk melakukan kopulasi. Setelah tidak diberikan lagi sanrego, aktivitas kawin kembali menurun, hal tersebut menunjukkan bahwa efek sanrego 300 mg terhadap perilaku kawin owa jawa masih bersifat sementara.
Keyword: aphrodisiac, javan gibbon, javan gibbon center, mating behavior, sanrego

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
Keyword: