Judul: Infeksi Cacing Saluran Pencernaan Pada Anoa Dataran Rendah (Bubalus depressicornis) Di Taman Margasatwa Ragunan Jakarta.
Abstrak: Anoa dataran rendah (Bubalus depressicornis) merupakan satwa endemik Sulawesi, dengan status terancam punah. Konservasi ex-situ merupakan salah satu cara pelestarian anoa dataran rendah. Infeksi cacing saluran pencernaan merupakan masalah yang sering ditemukan dalam upaya konservasi. Penelitian ini bertujuan untuk mengetahui jenis dan derajat infeksi cacing saluran pencernaan pada anoa dataran rendah di Taman Margasatwa Ragunan. Sampel tinja anoa diperiksa menggunakan metode modifikasi McMaster, flotasi sederhana serta filtrasi dan sedimentasi. Hasil penelitian menunjukkan seluruh sampel tinja anoa dataran rendah terinfeksi cacing nematoda saluran pencernaan dengan derajat infeksi rendah. Cacing nematoda yang di temukan adalah cacing strongyle dan Strongyloides. Hasil identifikasi larva infektif strongyle adalah Trichostrongylus spp., Haemonchus contortus, dan Cooperia curtecei.
Keyword: anoa, Bubalus depressicornis, nematoda saluran pencernaan

Judul: Infeksi Cacing Saluran Pencernaan pada Orangutan Sumatera (Pongo abelii) dan Orangutan Kalimantan (Pongo pygmaeus) di Taman Margasatwa Ragunan.
Abstrak: Orangutan merupakan hewan endemik Indonesia dan satu-satunya spesies primata besar yang masih ada di Asia. International Union For Conservation of Nature and Natural Resources (IUCN) menyebutkan bahwa orangutan sumatera (Pongo abelii) dan orangutan kalimantan (Pongo pygmaeus) dikategorikan sebagai hewan yang sudah sangat terancam punah. Upaya konservasi ex-situ merupakan hal penting untuk mempertahankan kelestarian jenisnya. Penelitian ini bertujuan untuk mempelajari kejadian infeksi kecacingan saluran pencernaan pada orangutan sumatera dan orangutan kalimantan di Taman Margasatwa Ragunan. Sejumlah total 24 sampel tinja dikumpulkan dari 8 orangutan pada 3 area kandang yang berbeda. Pemeriksaan sampel tinja menggunakan modifikasi teknik McMaster, flotasi sederhana, modifikasi filtrasi-sedimentasi dan kultur feses. Identifikasi jenis cacing ditentukan melalui morfometri telur cacing serta larva infektif strongyle (L3) secara mikroskopik. Hasil penelitian menunjukkan bahwa persentase kecacingan pada delapan orangutan adalah 100%, yaitu strongyle 37.5% dan Strongiloides 100%. Derajat infeksi tertinggi adalah jenis Strongyloides ditemukan pada orangutan yang berumur sangat muda, sedangkan derajat infeksi strongyle relatif lebih rendah. Hasil identifikasi larva ditemukan L3 Trichostrongylus spp.
Keyword: Cacing saluran pencernaan, Pongo abelii, Pongo pygmaeus, Taman Margasatwa

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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