Judul: Sistem sosial ekonomi dan pola pengelolaan peternakan kerbau di Kabupaten tana Toraja, Sulawesi Selatan
Abstrak: Perkembangan suatu peternakan, dalam hal ini peter nakan rakyat, tidak akan terlepas dari sistem sosial ekonomi yang ada. Untuk memperoleh sedikit gambaran mengenai peternakan kerbau rakyat di Tana Toraja, penulis mengadakan suatu penelitian berupa survai. Survai dilakukan dengan menjadikan peternak sebagai responden di seluruh kecamatan yang ada di kabupaten Tana Toraja. Survai dilakukan selama 4 minggu terhitung mulai 4 Februari 1985 sampai dengan 3 Maret 1985 dengan tehnik wawancara dan pengisian kuesioner. ...
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Judul: Sistem sosial ekonomi susu dan peternakan sapi perah di Jawa Tengah, suatu telaahan regional
Abstrak: Tujuan penelitian ini adalah untuk menelaah sistem, ekonomi usahatani susu dan peternakan sapi perah dari aspek makro dan aspek mikro. Dalam aspek lpakro akan ditelaah: (1) kontribusi sektor susu dan peternakan sapi perah terhadap tingkat output, pendapatan dan kesempatan kerja melalui efek m&bJJs serta saling keterkaitannya dengan sektor-sektor ekonomi lainnya, (2) menelaah kelayakan usahatani susu dan perternakan sapi perah ditinjau dari pegi efisiensi pemanfaatan sumberdaya domestik.
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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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