Judul: Peta Tanah Hijau Mendalam dan Peta Kesesuaian Lahan Kota Bogor dan Sekitarnya
Abstrak: Soil contain of various different kind of on one place hewn the others not onIy vertically but also horizontal ty that follow systematicatty change base on forming factor so that needed soil grouping in according with specific characteristic that known as soil classification system.
Keyword: 

Judul: Survei Tanah Detil Daerah Kecamatan Cibinong, Citeureup Dan Kedung Halang Kabupaten Bogor
Abstrak: Tujuan penelitian ini adalah mendeterminasi sifat- sifat tanah yang penting, mengklasifikasikan, memetakan dan mengkorelasikan serta memprediksi kesesuaian tanahnya untuk tujuan produksi pertanian (padi sawah, tanaman pa ngan lanan kering, perkebunan) dan tujuan enginering (tem- pat tinggal, pembuatan jalan, tempat sampah secara terbuka dan sebagai bahan urugan jalan). Tanah-tanahnya diklasi fikasikan menurut Sistem Taksonomi Tanah (Soil Survey Staff, 1975) sampai kategori seri, dan dipetakan ke dalam peta ta- nah detil dengan skala 1:20 000. Unsur satuan peta tanah- nya adalah fase dari seri tanah. Daerah penelitian dapat digolongkan ke dalam enam sa- tuan peta tanah detil yang terdiri atas empat seri tanah, yaitu: (1) Seri Jambatan yang mencakup SPT1 dan SPT2, (2) seri parung mencakup SPT3 dan SPT4, (3) seri Kempong mencakup SPT5 dan (6) seri Cijujung mencakup SPT6. Seri Jambatan termasuk ke dalam famili Anthraquic Eutropept, berliat sangat halus, kaolinitik, isohipertermik; seri parung termasuk Oxic Dystropept, berliat sangat halus, kaolinitik, isohipertermik; seri Kempong termasuk Typic Tropaquept, berliat sangat halus, campuran, isohipertermik; dan seri Cijujung termasuk Aquic Tropofluvent, berliat ha lus, campuran, isohipertermik. Tanah-tanah di daerah penelitian didominasi oleh ta- nah Jambatan yang menempati areal seluas 370 ha (46%) dan tanan parung seluas 295 ha (38%), sedangkan tanah Kempong menempati areal seluas 50 ha (7%) dan tanah Cijujung me nempati areal seluas 65 ha (9%). Luas seluruh areal pene- litian sebesar 780 ha. Kelas kesesuaian lahan tiap satuan peta tanah dari daerah penelitian, baik untuk bidang pertanian maupun bidang enginering disajikan pada Tabel 19. Tanah-tanah didaerah penelitian tidak ada yang menempati kelas sl untuk kesesuaian lahan di bidang pertanian, hal ini disebabkan karena status kesuburan tanahnya rendah. Untuk mencapai peringkat yang lebih tinggi (sl) diperlukan penambahan unsur-unsur hara yang diperlukan, terutama N, P dan K. Demikian juga untuk bioang enginering tidak ada yang menempati kelas "baik", penghambatnya adalah keadaan drainase dan kelas tekstur yang tergolong MH (Unified group)…
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: