Judul: Penggunaan Habitat Banteng di Taman Nasional Baluran Berdasarkan Jejak Aktivitas
Abstrak: Habitat banteng di Taman nasional baluran mengalami perubahan akibat adanya invasi akasia dan aktivitas manusia yang mempengaruhi ukuran populasi. Kondisi tersebut menyebabkan dibutuhkannya penelitian tentang penggunaan habitat berdasarkan sebaran jejak aktivitas banteng. Tujuan penelitian ini adalah mengidentifikasi habitat yang digunakan banteng berdasarkan jejak aktivitas di Taman Nasional Baluran, mengidentifikasi komposisi jenis dan struktur vegetasi di tipe habitat yang digunakan oleh banteng di Taman Nasional Baluran, dan mengidentifikasi komponen habitat yang berpengaruh terhadap keberadaan banteng di Taman Nasional Baluran. Habitat yang digunakan oleh banteng berdasarkan pertemuan jejak aktivitas banteng lebih banyak ditemukan di hutan musim dataran tinggi. Komposisi vegetasi hutan musim dataran tinggi tingkat semai didominasi oleh Commelina diffusa INP 153.33%, dan tingkat pancang dan tiang didominasi oleh Azadirachta indica INP 131.43% dan 300%, dan pohon didominasi oleh Acacia leucophloea INP 147.88%. Komponen yang berpengaruh terhadap keberadaan banteng yaitu gangguan aktivitas manusia dan predator.
Keyword: Baluran national park, bull, habitat

Judul: Analisis Pla Penggunaan Ruang Banteng (Bos javanicus d'Alton 1823) di Cagar Alam dan Taman Wisata Alam Pangandaran Jawa  Barat
Abstrak: Banteng is the one of animal which is being extinction (endangered) In Java, banteng distribution limited in several conservation area including Pangandaran Nature Reserve and Pangandaran Nature Recreation Park. The population in this site is fluctuate, in 2007 there's only one adult female banteng, Harm condition brought BKSDA Jawa Barat II as the role play key to make a plan for reintroduction the male banteng into the area, in order to increase the population. Because of that, it is need to conduct a research ecological of the banteng, one of them is space utilization pattern which is give about banteng's existence and activities in several types of vegetation. The data is collected including 1) the type of activity, 2) position and time of activity and 3) habitat characteristic. Behacioral obseravtion is done directly, following the movement of banteng , within seven times replilation. Vegetation analysis is done with transec method.
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Judul: Pemurnian dan karakterisasi protein inhibitor RNA helikase virus hepatitis C
Abstrak: Hepatitis C virus (HCV) infection is the second most common chronic viral infection in the world with global prevalence. This infection is contribution to chronic hepatitis and liver cirrhosis, often leading to hepatocellular carcinoma. There is no effective drug and vaccine available against HCV. The current standard treatment, a combination of pegylated interferon-α with ribavirin, is limited by its suboptimal response rate in a significant patient population, side effects, and affordability. Therefore, development of effective drug is needed. One approach to find out the candidate of antiviral drug is to discover the inhibitor of enzyme that essential for virus replication, such as RNA helicase. Streptomyces chartreusis 5-095 produce the inhibitor of HCV RNA helicase. The aim of this study was to purify the protein inhibitor which has inhibition activity against ATPase activity of RNA helicase HCV from S. chartreusis 5-095. The supernatant of culture S. chartreusis 5-095 exhibited high inhibiton activity against ATPase activity of RNA helicase HCV (approximately 72%) at 10 days of incubation. The extracellular protein inhibitor was partially purified by procedures of precipitation with ammonium sulfate to 65% saturation and gel filtration (Sephadex G50) using methanol water solution (4:6) as an eluen. The purity of protein inhibitor was monitored by SDS PAGE. The protein inhibitor showed a relative molecular mass were estimated to be 14 kDa and increased the purity 23,08 fold than those of the crude protein. The specific activity and IC50 after purification were 13,1338 U/mg and 0,0767 mg/mL, respectively. The activity of purified protein inhibitor showed its stability over pH range from 5-8 and optimum at pH 7,4. The inhibition activity showed its stability up to 70% at temperature 100 oC. The purified protein inhibitor relatively stable its activity at storage in the range of -20 oC to room temperature for 35 days.
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