Judul: Sistem Kelembagaan Hubungan Kerja Pertanian Padi Sawah dan Perkembangannya di Pedesaan Kabupaten Lumajang Propinsi Jawa Timur
Abstrak: Unsur-unsur pokok yang diamati dalam studi ini, yaitu: (a) Kelembagaan Hubungan Kerja; (b) Kelembagaan Pertanahan, sebagai salah satu faktor pengaruh terciptanya perkembangan sistem hubungan kerja; dan (c) Dampak perkembangan sistem hubungan kerja. Tujuan penelitian, mengamati: 1. Perkembangan pelapisan rumah tangga petani dan buruh tani berdasarkan luas pemilikan dan penguasaan lahan sawah; 2. Kelembagaan hubungan kerja pertanian (padi sawah) dalam hal bentuk, pembagian pekerjaan, pembagian hasil produksi serta pola hubungan kerja; 3. Perkembangan kelembagaan hubungan kerja pertanian dan faktor-faktor yang mempengaruhi perkembangan kelembagaan hubungan kerja; dan 4. Dampak perkembangan kelembagaan tersebut, terutama yang berkaitan dengan usaha meningkatkan kesejahteraan rumah tangga (petani dan buruh tani).
Keyword: 

Judul: Struktur Penguasaan Tanah dan Hubungan Kerja Agrarsi di Desa Jatisari, Lumajang, Jawa Timur
Abstrak: Tujuan penelitian ini adalah: (I) untuk mempelajari struktur penguasaan tanah sawah dan hubungannya dengan kekuatan tawar-menawar (bargaining power) masing-masing pihak yang terlibat dalam ( a ) tarnsaksi penguasaan tanah sawah (Jual-beli, sewa-menyewa dan sakap-menyakap), penentuan nilai tanah dan cara pembayarannya; (b) hubungan kerja agraris dalam hal hak dan kewajiban masing-masing pihak. ( 2 ) untuk mempelajari bentuk dan fungsi hubungan kerja dalam usahatani pada tanah sawah.
Keyword: 

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.
Keyword: