Judul: Struktur dan Strategi Nafkah Pedagang Makanan di Sektor Informal Daerah Suburban Kabupaten Bogor
Abstrak: Livelihood strategies are done by humans to maintain the sustainability of life. Meanwhile, this research is focused on livelihood strategies of food seller in informal sector. The study is conducted because industrialization and development. Affect of this industrialization and development are urbanizing process, so that is make profession conversion of domination farmer become food stall at informal sector. The method used in this study is survey research using questionnaires and qualitative approach using a slip, case studies and observations to support quantitative data. The results of this study is about characteristics of informal sector workers especially in food vendors, the structure of household income, livelihood strategies, the reason to trade in public areas and management saving capacity of informal sector workers.
Keyword: 

Judul: Struktur dan strategi nafkah rumahtangga pedagang sayur di Pasar Mawar Kota Bogor
Abstrak: Strategi nafkah merupakan usaha yang dilakukan manusia untuk mempertahankan eksistensi kehidupannya. Sementara itu, penelitian ini memfokuskan kajian pada strategi nafkah dan pemanfaatan modal nafkah salah satu pekerja sektor informal yaitu pedagang sayur di Pasar Mawar Kota Bogor. Penelitian ini dilakukan karena hilangnya kesempatan kerja di sektor pertanian sebagai akibat menyempitnya luas lahan pertanian dan efisiensi pertanian karena desakan kebutuhan. Akibatnya terjadilah proses migrasi desa-kota yang berujung pada masuknya para migran ke sektor informal di perkotaan. Metode yang digunakan dalam penelitian ini adalah penelitian survei menggunakan kuesioner dan data kualitatif menggunakan wawancara mendalam, pengolahan data sekunder dan observasi lapang sebagai penunjang data-data kuantitatif. Hasil penelitian ini nantinya akan menunjukan karakteristik rumahtangga pedagang sayur, struktur nafkah pedagang sayur, strategi nafkah yang dilakukan oleh pedagang sayur di sektor informal, pengaruh pemanfaatan modal nafkah terhadap tingkat pendapatan, dan alasan pedagang sayur bertahan dalam menjalani usahanya di area publik.
Keyword: informal sector, livelihoods strategies, livelihood assets

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: