Judul: Studi perilaku anoa (Bubalus (Anoa) quarlesi) di kebun binatang Ragunan Jakarta
Abstrak: Penelitian ini bertujuan untuk mengetahui dan mempelajari perilaku-perilaku anoa yang dipelihara di Kebun Binatang Ragunan Jakarta. Anoa yang dijadikan objek penelitian adalah 5 ekor anoa koleksi Kebun Binatang Ragunan Jakarta yang terdiri atas 3 ekor jantan dan 2 ekor betina, Anoa-anoa tersebut terletak dalam tiga kandang, dua kandang masing-masing berisi sepasang anoa dan satu kandar lagi hanya berisi seekor anoa (jantan). Penelitian ini terdiri atas tiga bagian pengamatan. Bagian pertama merupakan pengamatan perilaku secara umum yang mencakup pengenalan medan pengamatan, pengenalan individu-individu anoa dan pengenalan perilaku-perilaku anoa yang kemudian diinventarisasi untuk keperluan pengamatan selanjutnya. Bagian kedua adalah pengamatan perilaku secara kualitatif dan kuantitatif. Perilaku-perilaku yang diamati antara lain; makan, minum, memamah biak, istirahat atau diam, merawat tubuh dan lokomosi. Perilaku-perilaku lain yang juga diamati meliputi interaksi individu dengan individu pasangannya, eksplorasi, eliminasi, mencari tempat berteduh dan sifat menyerang kepada manusia. ...
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Judul: Preferensi dan Tingkah Laku Makan Anoa (Bubalus sp) di Taman Margasatwa Ragunan, Jakarta
Abstrak: Anoa (Bubalus sp) inerupakan salah satu jenis hewan endemik dari Sulawesi, yang tergolong ke dalain famili Bovidae. Saat ini populasinya terus inenurun dan terancam punah. Oleh karena itu, usaha pelestarian dan perlindungan satwa sangat penting untuk dilakukan. Pakan memiliki peran yang sangat penting karena konsumsi pakan adalah faktor esensial dan merupakan dasar untuk hidup serta menentukan produksi. Penelitian ini bertujuan untuk mengetahui preferensi dan tingkah laku makan anoa yang memiliki komposisi nutrien yang sesuailmendekati komposisi vegetasi pakan alaini, di Taman Margasatwa Ragunan, Jakarta. Paksln yang diberikan pada penelitian ini adalah rumput gajah, ubi jalar, pisang, jagung, buncis, kacang panjang, toinat, ketimun, dan wortel. Pakan dan air minum diberikan ad libitum satu kali sehari pada jam 09.00 WIB. Pengamatan yang dilakukan meliputi tingkah laku makan anoa, preferensi pakan berdasarkan sistem kafetaria, dan pendugaan kecemaan dengan metode indikator lignin. Data yang diperoleh dianalisis secara deskriptif dengan menghitung rataan dan standar deviasi menggunakan Program Exce.
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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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